Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
| 5 | /** \mainpage V8 API Reference Guide |
| 6 | * |
| 7 | * V8 is Google's open source JavaScript engine. |
| 8 | * |
| 9 | * This set of documents provides reference material generated from the |
| 10 | * V8 header file, include/v8.h. |
| 11 | * |
| 12 | * For other documentation see http://code.google.com/apis/v8/ |
| 13 | */ |
| 14 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 15 | #ifndef INCLUDE_V8_H_ |
| 16 | #define INCLUDE_V8_H_ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 17 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 18 | #include <stddef.h> |
| 19 | #include <stdint.h> |
| 20 | #include <stdio.h> |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 21 | #include <utility> |
| 22 | #include <vector> |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 23 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 24 | #include "v8-version.h" // NOLINT(build/include) |
| 25 | #include "v8config.h" // NOLINT(build/include) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 26 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 27 | // We reserve the V8_* prefix for macros defined in V8 public API and |
| 28 | // assume there are no name conflicts with the embedder's code. |
| 29 | |
| 30 | #ifdef V8_OS_WIN |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 31 | |
| 32 | // Setup for Windows DLL export/import. When building the V8 DLL the |
| 33 | // BUILDING_V8_SHARED needs to be defined. When building a program which uses |
| 34 | // the V8 DLL USING_V8_SHARED needs to be defined. When either building the V8 |
| 35 | // static library or building a program which uses the V8 static library neither |
| 36 | // BUILDING_V8_SHARED nor USING_V8_SHARED should be defined. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 37 | #if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED) |
| 38 | #error both BUILDING_V8_SHARED and USING_V8_SHARED are set - please check the\ |
| 39 | build configuration to ensure that at most one of these is set |
| 40 | #endif |
| 41 | |
| 42 | #ifdef BUILDING_V8_SHARED |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 43 | # define V8_EXPORT __declspec(dllexport) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 44 | #elif USING_V8_SHARED |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 45 | # define V8_EXPORT __declspec(dllimport) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 46 | #else |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | # define V8_EXPORT |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 48 | #endif // BUILDING_V8_SHARED |
| 49 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 50 | #else // V8_OS_WIN |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 51 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | // Setup for Linux shared library export. |
| 53 | #if V8_HAS_ATTRIBUTE_VISIBILITY && defined(V8_SHARED) |
| 54 | # ifdef BUILDING_V8_SHARED |
| 55 | # define V8_EXPORT __attribute__ ((visibility("default"))) |
| 56 | # else |
| 57 | # define V8_EXPORT |
| 58 | # endif |
| 59 | #else |
| 60 | # define V8_EXPORT |
| 61 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 62 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 63 | #endif // V8_OS_WIN |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 64 | |
| 65 | /** |
| 66 | * The v8 JavaScript engine. |
| 67 | */ |
| 68 | namespace v8 { |
| 69 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 70 | class AccessorSignature; |
| 71 | class Array; |
| 72 | class Boolean; |
| 73 | class BooleanObject; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 74 | class Context; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 75 | class CpuProfiler; |
| 76 | class Data; |
| 77 | class Date; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 78 | class External; |
| 79 | class Function; |
| 80 | class FunctionTemplate; |
| 81 | class HeapProfiler; |
| 82 | class ImplementationUtilities; |
| 83 | class Int32; |
| 84 | class Integer; |
| 85 | class Isolate; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 86 | template <class T> |
| 87 | class Maybe; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 88 | class Name; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 89 | class Number; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 90 | class NumberObject; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 91 | class Object; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 92 | class ObjectOperationDescriptor; |
| 93 | class ObjectTemplate; |
| 94 | class Platform; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 95 | class Primitive; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 96 | class Promise; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 97 | class Proxy; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 98 | class RawOperationDescriptor; |
| 99 | class Script; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 100 | class SharedArrayBuffer; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 101 | class Signature; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 102 | class StartupData; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 103 | class StackFrame; |
| 104 | class StackTrace; |
| 105 | class String; |
| 106 | class StringObject; |
| 107 | class Symbol; |
| 108 | class SymbolObject; |
| 109 | class Private; |
| 110 | class Uint32; |
| 111 | class Utils; |
| 112 | class Value; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 113 | template <class T> class Local; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 114 | template <class T> |
| 115 | class MaybeLocal; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 116 | template <class T> class Eternal; |
| 117 | template<class T> class NonCopyablePersistentTraits; |
| 118 | template<class T> class PersistentBase; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 119 | template <class T, class M = NonCopyablePersistentTraits<T> > |
| 120 | class Persistent; |
| 121 | template <class T> |
| 122 | class Global; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 123 | template<class K, class V, class T> class PersistentValueMap; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 124 | template <class K, class V, class T> |
| 125 | class PersistentValueMapBase; |
| 126 | template <class K, class V, class T> |
| 127 | class GlobalValueMap; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 128 | template<class V, class T> class PersistentValueVector; |
| 129 | template<class T, class P> class WeakCallbackObject; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 130 | class FunctionTemplate; |
| 131 | class ObjectTemplate; |
| 132 | class Data; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 133 | template<typename T> class FunctionCallbackInfo; |
| 134 | template<typename T> class PropertyCallbackInfo; |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 135 | class StackTrace; |
| 136 | class StackFrame; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 137 | class Isolate; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 138 | class CallHandlerHelper; |
| 139 | class EscapableHandleScope; |
| 140 | template<typename T> class ReturnValue; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 141 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 142 | namespace experimental { |
| 143 | class FastAccessorBuilder; |
| 144 | } // namespace experimental |
| 145 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 146 | namespace internal { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 147 | class Arguments; |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 148 | class Heap; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 149 | class HeapObject; |
| 150 | class Isolate; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 151 | class Object; |
| 152 | struct StreamedSource; |
| 153 | template<typename T> class CustomArguments; |
| 154 | class PropertyCallbackArguments; |
| 155 | class FunctionCallbackArguments; |
| 156 | class GlobalHandles; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 157 | } // namespace internal |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 158 | |
| 159 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 160 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 161 | * General purpose unique identifier. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 162 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 163 | class UniqueId { |
| 164 | public: |
| 165 | explicit UniqueId(intptr_t data) |
| 166 | : data_(data) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 167 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 168 | bool operator==(const UniqueId& other) const { |
| 169 | return data_ == other.data_; |
| 170 | } |
| 171 | |
| 172 | bool operator!=(const UniqueId& other) const { |
| 173 | return data_ != other.data_; |
| 174 | } |
| 175 | |
| 176 | bool operator<(const UniqueId& other) const { |
| 177 | return data_ < other.data_; |
| 178 | } |
| 179 | |
| 180 | private: |
| 181 | intptr_t data_; |
| 182 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 183 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 184 | // --- Handles --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 185 | |
Kristian Monsen | 50ef84f | 2010-07-29 15:18:00 +0100 | [diff] [blame] | 186 | #define TYPE_CHECK(T, S) \ |
| 187 | while (false) { \ |
| 188 | *(static_cast<T* volatile*>(0)) = static_cast<S*>(0); \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 189 | } |
| 190 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 191 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 192 | /** |
| 193 | * An object reference managed by the v8 garbage collector. |
| 194 | * |
| 195 | * All objects returned from v8 have to be tracked by the garbage |
| 196 | * collector so that it knows that the objects are still alive. Also, |
| 197 | * because the garbage collector may move objects, it is unsafe to |
| 198 | * point directly to an object. Instead, all objects are stored in |
| 199 | * handles which are known by the garbage collector and updated |
| 200 | * whenever an object moves. Handles should always be passed by value |
| 201 | * (except in cases like out-parameters) and they should never be |
| 202 | * allocated on the heap. |
| 203 | * |
| 204 | * There are two types of handles: local and persistent handles. |
| 205 | * Local handles are light-weight and transient and typically used in |
| 206 | * local operations. They are managed by HandleScopes. Persistent |
| 207 | * handles can be used when storing objects across several independent |
| 208 | * operations and have to be explicitly deallocated when they're no |
| 209 | * longer used. |
| 210 | * |
| 211 | * It is safe to extract the object stored in the handle by |
| 212 | * dereferencing the handle (for instance, to extract the Object* from |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 213 | * a Local<Object>); the value will still be governed by a handle |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 214 | * behind the scenes and the same rules apply to these values as to |
| 215 | * their handles. |
| 216 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 217 | template <class T> |
| 218 | class Local { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 219 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 220 | V8_INLINE Local() : val_(0) {} |
| 221 | template <class S> |
| 222 | V8_INLINE Local(Local<S> that) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 223 | : val_(reinterpret_cast<T*>(*that)) { |
| 224 | /** |
| 225 | * This check fails when trying to convert between incompatible |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 226 | * handles. For example, converting from a Local<String> to a |
| 227 | * Local<Number>. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 228 | */ |
| 229 | TYPE_CHECK(T, S); |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Returns true if the handle is empty. |
| 234 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 235 | V8_INLINE bool IsEmpty() const { return val_ == 0; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 236 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 237 | /** |
| 238 | * Sets the handle to be empty. IsEmpty() will then return true. |
| 239 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 240 | V8_INLINE void Clear() { val_ = 0; } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 241 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 242 | V8_INLINE T* operator->() const { return val_; } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 243 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 244 | V8_INLINE T* operator*() const { return val_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 245 | |
| 246 | /** |
| 247 | * Checks whether two handles are the same. |
| 248 | * Returns true if both are empty, or if the objects |
| 249 | * to which they refer are identical. |
| 250 | * The handles' references are not checked. |
| 251 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 252 | template <class S> |
| 253 | V8_INLINE bool operator==(const Local<S>& that) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 254 | internal::Object** a = reinterpret_cast<internal::Object**>(this->val_); |
| 255 | internal::Object** b = reinterpret_cast<internal::Object**>(that.val_); |
| 256 | if (a == 0) return b == 0; |
| 257 | if (b == 0) return false; |
| 258 | return *a == *b; |
| 259 | } |
| 260 | |
| 261 | template <class S> V8_INLINE bool operator==( |
| 262 | const PersistentBase<S>& that) const { |
| 263 | internal::Object** a = reinterpret_cast<internal::Object**>(this->val_); |
| 264 | internal::Object** b = reinterpret_cast<internal::Object**>(that.val_); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 265 | if (a == 0) return b == 0; |
| 266 | if (b == 0) return false; |
| 267 | return *a == *b; |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * Checks whether two handles are different. |
| 272 | * Returns true if only one of the handles is empty, or if |
| 273 | * the objects to which they refer are different. |
| 274 | * The handles' references are not checked. |
| 275 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 276 | template <class S> |
| 277 | V8_INLINE bool operator!=(const Local<S>& that) const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 278 | return !operator==(that); |
| 279 | } |
| 280 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 281 | template <class S> V8_INLINE bool operator!=( |
| 282 | const Persistent<S>& that) const { |
| 283 | return !operator==(that); |
| 284 | } |
| 285 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 286 | template <class S> V8_INLINE static Local<T> Cast(Local<S> that) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 287 | #ifdef V8_ENABLE_CHECKS |
| 288 | // If we're going to perform the type check then we have to check |
| 289 | // that the handle isn't empty before doing the checked cast. |
| 290 | if (that.IsEmpty()) return Local<T>(); |
| 291 | #endif |
| 292 | return Local<T>(T::Cast(*that)); |
| 293 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 294 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 295 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 296 | template <class S> V8_INLINE Local<S> As() { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 297 | return Local<S>::Cast(*this); |
| 298 | } |
| 299 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 300 | /** |
| 301 | * Create a local handle for the content of another handle. |
| 302 | * The referee is kept alive by the local handle even when |
| 303 | * the original handle is destroyed/disposed. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 304 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 305 | V8_INLINE static Local<T> New(Isolate* isolate, Local<T> that); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 306 | V8_INLINE static Local<T> New(Isolate* isolate, |
| 307 | const PersistentBase<T>& that); |
| 308 | |
| 309 | private: |
| 310 | friend class Utils; |
| 311 | template<class F> friend class Eternal; |
| 312 | template<class F> friend class PersistentBase; |
| 313 | template<class F, class M> friend class Persistent; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 314 | template<class F> friend class Local; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 315 | template <class F> |
| 316 | friend class MaybeLocal; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 317 | template<class F> friend class FunctionCallbackInfo; |
| 318 | template<class F> friend class PropertyCallbackInfo; |
| 319 | friend class String; |
| 320 | friend class Object; |
| 321 | friend class Context; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 322 | friend class Private; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 323 | template<class F> friend class internal::CustomArguments; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 324 | friend Local<Primitive> Undefined(Isolate* isolate); |
| 325 | friend Local<Primitive> Null(Isolate* isolate); |
| 326 | friend Local<Boolean> True(Isolate* isolate); |
| 327 | friend Local<Boolean> False(Isolate* isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 328 | friend class HandleScope; |
| 329 | friend class EscapableHandleScope; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 330 | template <class F1, class F2, class F3> |
| 331 | friend class PersistentValueMapBase; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 332 | template<class F1, class F2> friend class PersistentValueVector; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 333 | template <class F> |
| 334 | friend class ReturnValue; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 335 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 336 | explicit V8_INLINE Local(T* that) : val_(that) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 337 | V8_INLINE static Local<T> New(Isolate* isolate, T* that); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 338 | T* val_; |
| 339 | }; |
| 340 | |
| 341 | |
| 342 | #if !defined(V8_IMMINENT_DEPRECATION_WARNINGS) |
| 343 | // Local is an alias for Local for historical reasons. |
| 344 | template <class T> |
| 345 | using Handle = Local<T>; |
| 346 | #endif |
| 347 | |
| 348 | |
| 349 | /** |
| 350 | * A MaybeLocal<> is a wrapper around Local<> that enforces a check whether |
| 351 | * the Local<> is empty before it can be used. |
| 352 | * |
| 353 | * If an API method returns a MaybeLocal<>, the API method can potentially fail |
| 354 | * either because an exception is thrown, or because an exception is pending, |
| 355 | * e.g. because a previous API call threw an exception that hasn't been caught |
| 356 | * yet, or because a TerminateExecution exception was thrown. In that case, an |
| 357 | * empty MaybeLocal is returned. |
| 358 | */ |
| 359 | template <class T> |
| 360 | class MaybeLocal { |
| 361 | public: |
| 362 | V8_INLINE MaybeLocal() : val_(nullptr) {} |
| 363 | template <class S> |
| 364 | V8_INLINE MaybeLocal(Local<S> that) |
| 365 | : val_(reinterpret_cast<T*>(*that)) { |
| 366 | TYPE_CHECK(T, S); |
| 367 | } |
| 368 | |
| 369 | V8_INLINE bool IsEmpty() const { return val_ == nullptr; } |
| 370 | |
| 371 | template <class S> |
| 372 | V8_WARN_UNUSED_RESULT V8_INLINE bool ToLocal(Local<S>* out) const { |
| 373 | out->val_ = IsEmpty() ? nullptr : this->val_; |
| 374 | return !IsEmpty(); |
| 375 | } |
| 376 | |
| 377 | // Will crash if the MaybeLocal<> is empty. |
| 378 | V8_INLINE Local<T> ToLocalChecked(); |
| 379 | |
| 380 | template <class S> |
| 381 | V8_INLINE Local<S> FromMaybe(Local<S> default_value) const { |
| 382 | return IsEmpty() ? default_value : Local<S>(val_); |
| 383 | } |
| 384 | |
| 385 | private: |
| 386 | T* val_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 387 | }; |
| 388 | |
| 389 | |
| 390 | // Eternal handles are set-once handles that live for the life of the isolate. |
| 391 | template <class T> class Eternal { |
| 392 | public: |
| 393 | V8_INLINE Eternal() : index_(kInitialValue) { } |
| 394 | template<class S> |
| 395 | V8_INLINE Eternal(Isolate* isolate, Local<S> handle) : index_(kInitialValue) { |
| 396 | Set(isolate, handle); |
| 397 | } |
| 398 | // Can only be safely called if already set. |
| 399 | V8_INLINE Local<T> Get(Isolate* isolate); |
| 400 | V8_INLINE bool IsEmpty() { return index_ == kInitialValue; } |
| 401 | template<class S> V8_INLINE void Set(Isolate* isolate, Local<S> handle); |
| 402 | |
| 403 | private: |
| 404 | static const int kInitialValue = -1; |
| 405 | int index_; |
| 406 | }; |
| 407 | |
| 408 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 409 | static const int kInternalFieldsInWeakCallback = 2; |
| 410 | |
| 411 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 412 | template <typename T> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 413 | class WeakCallbackInfo { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 414 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 415 | typedef void (*Callback)(const WeakCallbackInfo<T>& data); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 416 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 417 | WeakCallbackInfo(Isolate* isolate, T* parameter, |
| 418 | void* internal_fields[kInternalFieldsInWeakCallback], |
| 419 | Callback* callback) |
| 420 | : isolate_(isolate), parameter_(parameter), callback_(callback) { |
| 421 | for (int i = 0; i < kInternalFieldsInWeakCallback; ++i) { |
| 422 | internal_fields_[i] = internal_fields[i]; |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | V8_INLINE Isolate* GetIsolate() const { return isolate_; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 427 | V8_INLINE T* GetParameter() const { return parameter_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 428 | V8_INLINE void* GetInternalField(int index) const; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 429 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 430 | V8_INLINE V8_DEPRECATED("use indexed version", |
| 431 | void* GetInternalField1() const) { |
| 432 | return internal_fields_[0]; |
| 433 | } |
| 434 | V8_INLINE V8_DEPRECATED("use indexed version", |
| 435 | void* GetInternalField2() const) { |
| 436 | return internal_fields_[1]; |
| 437 | } |
| 438 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 439 | V8_DEPRECATED("Not realiable once SetSecondPassCallback() was used.", |
| 440 | bool IsFirstPass() const) { |
| 441 | return callback_ != nullptr; |
| 442 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 443 | |
| 444 | // When first called, the embedder MUST Reset() the Global which triggered the |
| 445 | // callback. The Global itself is unusable for anything else. No v8 other api |
| 446 | // calls may be called in the first callback. Should additional work be |
| 447 | // required, the embedder must set a second pass callback, which will be |
| 448 | // called after all the initial callbacks are processed. |
| 449 | // Calling SetSecondPassCallback on the second pass will immediately crash. |
| 450 | void SetSecondPassCallback(Callback callback) const { *callback_ = callback; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 451 | |
| 452 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 453 | Isolate* isolate_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 454 | T* parameter_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 455 | Callback* callback_; |
| 456 | void* internal_fields_[kInternalFieldsInWeakCallback]; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 457 | }; |
| 458 | |
| 459 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 460 | // kParameter will pass a void* parameter back to the callback, kInternalFields |
| 461 | // will pass the first two internal fields back to the callback, kFinalizer |
| 462 | // will pass a void* parameter back, but is invoked before the object is |
| 463 | // actually collected, so it can be resurrected. In the last case, it is not |
| 464 | // possible to request a second pass callback. |
| 465 | enum class WeakCallbackType { kParameter, kInternalFields, kFinalizer }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 466 | |
| 467 | /** |
| 468 | * An object reference that is independent of any handle scope. Where |
| 469 | * a Local handle only lives as long as the HandleScope in which it was |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 470 | * allocated, a PersistentBase handle remains valid until it is explicitly |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 471 | * disposed. |
| 472 | * |
| 473 | * A persistent handle contains a reference to a storage cell within |
| 474 | * the v8 engine which holds an object value and which is updated by |
| 475 | * the garbage collector whenever the object is moved. A new storage |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 476 | * cell can be created using the constructor or PersistentBase::Reset and |
| 477 | * existing handles can be disposed using PersistentBase::Reset. |
| 478 | * |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 479 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 480 | template <class T> class PersistentBase { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 481 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 482 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 483 | * If non-empty, destroy the underlying storage cell |
| 484 | * IsEmpty() will return true after this call. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 485 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 486 | V8_INLINE void Reset(); |
| 487 | /** |
| 488 | * If non-empty, destroy the underlying storage cell |
| 489 | * and create a new one with the contents of other if other is non empty |
| 490 | */ |
| 491 | template <class S> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 492 | V8_INLINE void Reset(Isolate* isolate, const Local<S>& other); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 493 | |
| 494 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 495 | * If non-empty, destroy the underlying storage cell |
| 496 | * and create a new one with the contents of other if other is non empty |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 497 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 498 | template <class S> |
| 499 | V8_INLINE void Reset(Isolate* isolate, const PersistentBase<S>& other); |
| 500 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 501 | V8_INLINE bool IsEmpty() const { return val_ == NULL; } |
| 502 | V8_INLINE void Empty() { val_ = 0; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 503 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 504 | V8_INLINE Local<T> Get(Isolate* isolate) const { |
| 505 | return Local<T>::New(isolate, *this); |
| 506 | } |
| 507 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 508 | template <class S> |
| 509 | V8_INLINE bool operator==(const PersistentBase<S>& that) const { |
| 510 | internal::Object** a = reinterpret_cast<internal::Object**>(this->val_); |
| 511 | internal::Object** b = reinterpret_cast<internal::Object**>(that.val_); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 512 | if (a == NULL) return b == NULL; |
| 513 | if (b == NULL) return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 514 | return *a == *b; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 515 | } |
| 516 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 517 | template <class S> |
| 518 | V8_INLINE bool operator==(const Local<S>& that) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 519 | internal::Object** a = reinterpret_cast<internal::Object**>(this->val_); |
| 520 | internal::Object** b = reinterpret_cast<internal::Object**>(that.val_); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 521 | if (a == NULL) return b == NULL; |
| 522 | if (b == NULL) return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 523 | return *a == *b; |
| 524 | } |
| 525 | |
| 526 | template <class S> |
| 527 | V8_INLINE bool operator!=(const PersistentBase<S>& that) const { |
| 528 | return !operator==(that); |
| 529 | } |
| 530 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 531 | template <class S> |
| 532 | V8_INLINE bool operator!=(const Local<S>& that) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 533 | return !operator==(that); |
| 534 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 535 | |
| 536 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 537 | * Install a finalization callback on this object. |
| 538 | * NOTE: There is no guarantee as to *when* or even *if* the callback is |
| 539 | * invoked. The invocation is performed solely on a best effort basis. |
| 540 | * As always, GC-based finalization should *not* be relied upon for any |
| 541 | * critical form of resource management! |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 542 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 543 | template <typename P> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 544 | V8_INLINE void SetWeak(P* parameter, |
| 545 | typename WeakCallbackInfo<P>::Callback callback, |
| 546 | WeakCallbackType type); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 547 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 548 | /** |
| 549 | * Turns this handle into a weak phantom handle without finalization callback. |
| 550 | * The handle will be reset automatically when the garbage collector detects |
| 551 | * that the object is no longer reachable. |
| 552 | * A related function Isolate::NumberOfPhantomHandleResetsSinceLastCall |
| 553 | * returns how many phantom handles were reset by the garbage collector. |
| 554 | */ |
| 555 | V8_INLINE void SetWeak(); |
| 556 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 557 | template<typename P> |
| 558 | V8_INLINE P* ClearWeak(); |
| 559 | |
| 560 | // TODO(dcarney): remove this. |
| 561 | V8_INLINE void ClearWeak() { ClearWeak<void>(); } |
| 562 | |
| 563 | /** |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 564 | * Allows the embedder to tell the v8 garbage collector that a certain object |
| 565 | * is alive. Only allowed when the embedder is asked to trace its heap by |
| 566 | * EmbedderHeapTracer. |
| 567 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 568 | V8_INLINE void RegisterExternalReference(Isolate* isolate) const; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 569 | |
| 570 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 571 | * Marks the reference to this object independent. Garbage collector is free |
| 572 | * to ignore any object groups containing this object. Weak callback for an |
| 573 | * independent handle should not assume that it will be preceded by a global |
| 574 | * GC prologue callback or followed by a global GC epilogue callback. |
| 575 | */ |
| 576 | V8_INLINE void MarkIndependent(); |
| 577 | |
| 578 | /** |
| 579 | * Marks the reference to this object partially dependent. Partially dependent |
| 580 | * handles only depend on other partially dependent handles and these |
| 581 | * dependencies are provided through object groups. It provides a way to build |
| 582 | * smaller object groups for young objects that represent only a subset of all |
| 583 | * external dependencies. This mark is automatically cleared after each |
| 584 | * garbage collection. |
| 585 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 586 | V8_INLINE V8_DEPRECATED( |
| 587 | "deprecated optimization, do not use partially dependent groups", |
| 588 | void MarkPartiallyDependent()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 589 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 590 | /** |
| 591 | * Marks the reference to this object as active. The scavenge garbage |
| 592 | * collection should not reclaim the objects marked as active. |
| 593 | * This bit is cleared after the each garbage collection pass. |
| 594 | */ |
| 595 | V8_INLINE void MarkActive(); |
| 596 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 597 | V8_INLINE bool IsIndependent() const; |
| 598 | |
| 599 | /** Checks if the handle holds the only reference to an object. */ |
| 600 | V8_INLINE bool IsNearDeath() const; |
| 601 | |
| 602 | /** Returns true if the handle's reference is weak. */ |
| 603 | V8_INLINE bool IsWeak() const; |
| 604 | |
| 605 | /** |
| 606 | * Assigns a wrapper class ID to the handle. See RetainedObjectInfo interface |
| 607 | * description in v8-profiler.h for details. |
| 608 | */ |
| 609 | V8_INLINE void SetWrapperClassId(uint16_t class_id); |
| 610 | |
| 611 | /** |
| 612 | * Returns the class ID previously assigned to this handle or 0 if no class ID |
| 613 | * was previously assigned. |
| 614 | */ |
| 615 | V8_INLINE uint16_t WrapperClassId() const; |
| 616 | |
| 617 | private: |
| 618 | friend class Isolate; |
| 619 | friend class Utils; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 620 | template<class F> friend class Local; |
| 621 | template<class F1, class F2> friend class Persistent; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 622 | template <class F> |
| 623 | friend class Global; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 624 | template<class F> friend class PersistentBase; |
| 625 | template<class F> friend class ReturnValue; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 626 | template <class F1, class F2, class F3> |
| 627 | friend class PersistentValueMapBase; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 628 | template<class F1, class F2> friend class PersistentValueVector; |
| 629 | friend class Object; |
| 630 | |
| 631 | explicit V8_INLINE PersistentBase(T* val) : val_(val) {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 632 | PersistentBase(const PersistentBase& other) = delete; // NOLINT |
| 633 | void operator=(const PersistentBase&) = delete; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 634 | V8_INLINE static T* New(Isolate* isolate, T* that); |
| 635 | |
| 636 | T* val_; |
| 637 | }; |
| 638 | |
| 639 | |
| 640 | /** |
| 641 | * Default traits for Persistent. This class does not allow |
| 642 | * use of the copy constructor or assignment operator. |
| 643 | * At present kResetInDestructor is not set, but that will change in a future |
| 644 | * version. |
| 645 | */ |
| 646 | template<class T> |
| 647 | class NonCopyablePersistentTraits { |
| 648 | public: |
| 649 | typedef Persistent<T, NonCopyablePersistentTraits<T> > NonCopyablePersistent; |
| 650 | static const bool kResetInDestructor = false; |
| 651 | template<class S, class M> |
| 652 | V8_INLINE static void Copy(const Persistent<S, M>& source, |
| 653 | NonCopyablePersistent* dest) { |
| 654 | Uncompilable<Object>(); |
| 655 | } |
| 656 | // TODO(dcarney): come up with a good compile error here. |
| 657 | template<class O> V8_INLINE static void Uncompilable() { |
| 658 | TYPE_CHECK(O, Primitive); |
| 659 | } |
| 660 | }; |
| 661 | |
| 662 | |
| 663 | /** |
| 664 | * Helper class traits to allow copying and assignment of Persistent. |
| 665 | * This will clone the contents of storage cell, but not any of the flags, etc. |
| 666 | */ |
| 667 | template<class T> |
| 668 | struct CopyablePersistentTraits { |
| 669 | typedef Persistent<T, CopyablePersistentTraits<T> > CopyablePersistent; |
| 670 | static const bool kResetInDestructor = true; |
| 671 | template<class S, class M> |
| 672 | static V8_INLINE void Copy(const Persistent<S, M>& source, |
| 673 | CopyablePersistent* dest) { |
| 674 | // do nothing, just allow copy |
| 675 | } |
| 676 | }; |
| 677 | |
| 678 | |
| 679 | /** |
| 680 | * A PersistentBase which allows copy and assignment. |
| 681 | * |
| 682 | * Copy, assignment and destructor bevavior is controlled by the traits |
| 683 | * class M. |
| 684 | * |
| 685 | * Note: Persistent class hierarchy is subject to future changes. |
| 686 | */ |
| 687 | template <class T, class M> class Persistent : public PersistentBase<T> { |
| 688 | public: |
| 689 | /** |
| 690 | * A Persistent with no storage cell. |
| 691 | */ |
| 692 | V8_INLINE Persistent() : PersistentBase<T>(0) { } |
| 693 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 694 | * Construct a Persistent from a Local. |
| 695 | * When the Local is non-empty, a new storage cell is created |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 696 | * pointing to the same object, and no flags are set. |
| 697 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 698 | template <class S> |
| 699 | V8_INLINE Persistent(Isolate* isolate, Local<S> that) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 700 | : PersistentBase<T>(PersistentBase<T>::New(isolate, *that)) { |
| 701 | TYPE_CHECK(T, S); |
| 702 | } |
| 703 | /** |
| 704 | * Construct a Persistent from a Persistent. |
| 705 | * When the Persistent is non-empty, a new storage cell is created |
| 706 | * pointing to the same object, and no flags are set. |
| 707 | */ |
| 708 | template <class S, class M2> |
| 709 | V8_INLINE Persistent(Isolate* isolate, const Persistent<S, M2>& that) |
| 710 | : PersistentBase<T>(PersistentBase<T>::New(isolate, *that)) { |
| 711 | TYPE_CHECK(T, S); |
| 712 | } |
| 713 | /** |
| 714 | * The copy constructors and assignment operator create a Persistent |
| 715 | * exactly as the Persistent constructor, but the Copy function from the |
| 716 | * traits class is called, allowing the setting of flags based on the |
| 717 | * copied Persistent. |
| 718 | */ |
| 719 | V8_INLINE Persistent(const Persistent& that) : PersistentBase<T>(0) { |
| 720 | Copy(that); |
| 721 | } |
| 722 | template <class S, class M2> |
| 723 | V8_INLINE Persistent(const Persistent<S, M2>& that) : PersistentBase<T>(0) { |
| 724 | Copy(that); |
| 725 | } |
| 726 | V8_INLINE Persistent& operator=(const Persistent& that) { // NOLINT |
| 727 | Copy(that); |
| 728 | return *this; |
| 729 | } |
| 730 | template <class S, class M2> |
| 731 | V8_INLINE Persistent& operator=(const Persistent<S, M2>& that) { // NOLINT |
| 732 | Copy(that); |
| 733 | return *this; |
| 734 | } |
| 735 | /** |
| 736 | * The destructor will dispose the Persistent based on the |
| 737 | * kResetInDestructor flags in the traits class. Since not calling dispose |
| 738 | * can result in a memory leak, it is recommended to always set this flag. |
| 739 | */ |
| 740 | V8_INLINE ~Persistent() { |
| 741 | if (M::kResetInDestructor) this->Reset(); |
| 742 | } |
| 743 | |
| 744 | // TODO(dcarney): this is pretty useless, fix or remove |
| 745 | template <class S> |
| 746 | V8_INLINE static Persistent<T>& Cast(Persistent<S>& that) { // NOLINT |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 747 | #ifdef V8_ENABLE_CHECKS |
| 748 | // If we're going to perform the type check then we have to check |
| 749 | // that the handle isn't empty before doing the checked cast. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 750 | if (!that.IsEmpty()) T::Cast(*that); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 751 | #endif |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 752 | return reinterpret_cast<Persistent<T>&>(that); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 753 | } |
| 754 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 755 | // TODO(dcarney): this is pretty useless, fix or remove |
| 756 | template <class S> V8_INLINE Persistent<S>& As() { // NOLINT |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 757 | return Persistent<S>::Cast(*this); |
| 758 | } |
| 759 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 760 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 761 | friend class Isolate; |
| 762 | friend class Utils; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 763 | template<class F> friend class Local; |
| 764 | template<class F1, class F2> friend class Persistent; |
| 765 | template<class F> friend class ReturnValue; |
| 766 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 767 | explicit V8_INLINE Persistent(T* that) : PersistentBase<T>(that) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 768 | V8_INLINE T* operator*() const { return this->val_; } |
| 769 | template<class S, class M2> |
| 770 | V8_INLINE void Copy(const Persistent<S, M2>& that); |
| 771 | }; |
| 772 | |
| 773 | |
| 774 | /** |
| 775 | * A PersistentBase which has move semantics. |
| 776 | * |
| 777 | * Note: Persistent class hierarchy is subject to future changes. |
| 778 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 779 | template <class T> |
| 780 | class Global : public PersistentBase<T> { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 781 | public: |
| 782 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 783 | * A Global with no storage cell. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 784 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 785 | V8_INLINE Global() : PersistentBase<T>(nullptr) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 786 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 787 | * Construct a Global from a Local. |
| 788 | * When the Local is non-empty, a new storage cell is created |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 789 | * pointing to the same object, and no flags are set. |
| 790 | */ |
| 791 | template <class S> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 792 | V8_INLINE Global(Isolate* isolate, Local<S> that) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 793 | : PersistentBase<T>(PersistentBase<T>::New(isolate, *that)) { |
| 794 | TYPE_CHECK(T, S); |
| 795 | } |
| 796 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 797 | * Construct a Global from a PersistentBase. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 798 | * When the Persistent is non-empty, a new storage cell is created |
| 799 | * pointing to the same object, and no flags are set. |
| 800 | */ |
| 801 | template <class S> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 802 | V8_INLINE Global(Isolate* isolate, const PersistentBase<S>& that) |
| 803 | : PersistentBase<T>(PersistentBase<T>::New(isolate, that.val_)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 804 | TYPE_CHECK(T, S); |
| 805 | } |
| 806 | /** |
| 807 | * Move constructor. |
| 808 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 809 | V8_INLINE Global(Global&& other) : PersistentBase<T>(other.val_) { // NOLINT |
| 810 | other.val_ = nullptr; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 811 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 812 | V8_INLINE ~Global() { this->Reset(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 813 | /** |
| 814 | * Move via assignment. |
| 815 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 816 | template <class S> |
| 817 | V8_INLINE Global& operator=(Global<S>&& rhs) { // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 818 | TYPE_CHECK(T, S); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 819 | if (this != &rhs) { |
| 820 | this->Reset(); |
| 821 | this->val_ = rhs.val_; |
| 822 | rhs.val_ = nullptr; |
| 823 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 824 | return *this; |
| 825 | } |
| 826 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 827 | * Pass allows returning uniques from functions, etc. |
| 828 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 829 | Global Pass() { return static_cast<Global&&>(*this); } // NOLINT |
| 830 | |
| 831 | /* |
| 832 | * For compatibility with Chromium's base::Bind (base::Passed). |
| 833 | */ |
| 834 | typedef void MoveOnlyTypeForCPP03; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 835 | |
| 836 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 837 | template <class F> |
| 838 | friend class ReturnValue; |
| 839 | Global(const Global&) = delete; |
| 840 | void operator=(const Global&) = delete; |
| 841 | V8_INLINE T* operator*() const { return this->val_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 842 | }; |
| 843 | |
| 844 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 845 | // UniquePersistent is an alias for Global for historical reason. |
| 846 | template <class T> |
| 847 | using UniquePersistent = Global<T>; |
| 848 | |
| 849 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 850 | /** |
| 851 | * A stack-allocated class that governs a number of local handles. |
| 852 | * After a handle scope has been created, all local handles will be |
| 853 | * allocated within that handle scope until either the handle scope is |
| 854 | * deleted or another handle scope is created. If there is already a |
| 855 | * handle scope and a new one is created, all allocations will take |
| 856 | * place in the new handle scope until it is deleted. After that, |
| 857 | * new handles will again be allocated in the original handle scope. |
| 858 | * |
| 859 | * After the handle scope of a local handle has been deleted the |
| 860 | * garbage collector will no longer track the object stored in the |
| 861 | * handle and may deallocate it. The behavior of accessing a handle |
| 862 | * for which the handle scope has been deleted is undefined. |
| 863 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 864 | class V8_EXPORT HandleScope { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 865 | public: |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 866 | explicit HandleScope(Isolate* isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 867 | |
| 868 | ~HandleScope(); |
| 869 | |
| 870 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 871 | * Counts the number of allocated handles. |
| 872 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 873 | static int NumberOfHandles(Isolate* isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 874 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 875 | V8_INLINE Isolate* GetIsolate() const { |
| 876 | return reinterpret_cast<Isolate*>(isolate_); |
| 877 | } |
| 878 | |
| 879 | protected: |
| 880 | V8_INLINE HandleScope() {} |
| 881 | |
| 882 | void Initialize(Isolate* isolate); |
| 883 | |
| 884 | static internal::Object** CreateHandle(internal::Isolate* isolate, |
| 885 | internal::Object* value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 886 | |
| 887 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 888 | // Uses heap_object to obtain the current Isolate. |
| 889 | static internal::Object** CreateHandle(internal::HeapObject* heap_object, |
| 890 | internal::Object* value); |
| 891 | |
| 892 | // Make it hard to create heap-allocated or illegal handle scopes by |
| 893 | // disallowing certain operations. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 894 | HandleScope(const HandleScope&); |
| 895 | void operator=(const HandleScope&); |
| 896 | void* operator new(size_t size); |
| 897 | void operator delete(void*, size_t); |
| 898 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 899 | internal::Isolate* isolate_; |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 900 | internal::Object** prev_next_; |
| 901 | internal::Object** prev_limit_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 902 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 903 | // Local::New uses CreateHandle with an Isolate* parameter. |
| 904 | template<class F> friend class Local; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 905 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 906 | // Object::GetInternalField and Context::GetEmbedderData use CreateHandle with |
| 907 | // a HeapObject* in their shortcuts. |
| 908 | friend class Object; |
| 909 | friend class Context; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 910 | }; |
| 911 | |
| 912 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 913 | /** |
| 914 | * A HandleScope which first allocates a handle in the current scope |
| 915 | * which will be later filled with the escape value. |
| 916 | */ |
| 917 | class V8_EXPORT EscapableHandleScope : public HandleScope { |
| 918 | public: |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 919 | explicit EscapableHandleScope(Isolate* isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 920 | V8_INLINE ~EscapableHandleScope() {} |
| 921 | |
| 922 | /** |
| 923 | * Pushes the value into the previous scope and returns a handle to it. |
| 924 | * Cannot be called twice. |
| 925 | */ |
| 926 | template <class T> |
| 927 | V8_INLINE Local<T> Escape(Local<T> value) { |
| 928 | internal::Object** slot = |
| 929 | Escape(reinterpret_cast<internal::Object**>(*value)); |
| 930 | return Local<T>(reinterpret_cast<T*>(slot)); |
| 931 | } |
| 932 | |
| 933 | private: |
| 934 | internal::Object** Escape(internal::Object** escape_value); |
| 935 | |
| 936 | // Make it hard to create heap-allocated or illegal handle scopes by |
| 937 | // disallowing certain operations. |
| 938 | EscapableHandleScope(const EscapableHandleScope&); |
| 939 | void operator=(const EscapableHandleScope&); |
| 940 | void* operator new(size_t size); |
| 941 | void operator delete(void*, size_t); |
| 942 | |
| 943 | internal::Object** escape_slot_; |
| 944 | }; |
| 945 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 946 | class V8_EXPORT SealHandleScope { |
| 947 | public: |
| 948 | SealHandleScope(Isolate* isolate); |
| 949 | ~SealHandleScope(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 950 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 951 | private: |
| 952 | // Make it hard to create heap-allocated or illegal handle scopes by |
| 953 | // disallowing certain operations. |
| 954 | SealHandleScope(const SealHandleScope&); |
| 955 | void operator=(const SealHandleScope&); |
| 956 | void* operator new(size_t size); |
| 957 | void operator delete(void*, size_t); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 958 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 959 | internal::Isolate* isolate_; |
| 960 | internal::Object** prev_limit_; |
| 961 | int prev_sealed_level_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 962 | }; |
| 963 | |
| 964 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 965 | // --- Special objects --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 966 | |
| 967 | |
| 968 | /** |
| 969 | * The superclass of values and API object templates. |
| 970 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 971 | class V8_EXPORT Data { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 972 | private: |
| 973 | Data(); |
| 974 | }; |
| 975 | |
| 976 | |
| 977 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 978 | * The optional attributes of ScriptOrigin. |
| 979 | */ |
| 980 | class ScriptOriginOptions { |
| 981 | public: |
| 982 | V8_INLINE ScriptOriginOptions(bool is_embedder_debug_script = false, |
| 983 | bool is_shared_cross_origin = false, |
| 984 | bool is_opaque = false) |
| 985 | : flags_((is_embedder_debug_script ? kIsEmbedderDebugScript : 0) | |
| 986 | (is_shared_cross_origin ? kIsSharedCrossOrigin : 0) | |
| 987 | (is_opaque ? kIsOpaque : 0)) {} |
| 988 | V8_INLINE ScriptOriginOptions(int flags) |
| 989 | : flags_(flags & |
| 990 | (kIsEmbedderDebugScript | kIsSharedCrossOrigin | kIsOpaque)) {} |
| 991 | bool IsEmbedderDebugScript() const { |
| 992 | return (flags_ & kIsEmbedderDebugScript) != 0; |
| 993 | } |
| 994 | bool IsSharedCrossOrigin() const { |
| 995 | return (flags_ & kIsSharedCrossOrigin) != 0; |
| 996 | } |
| 997 | bool IsOpaque() const { return (flags_ & kIsOpaque) != 0; } |
| 998 | int Flags() const { return flags_; } |
| 999 | |
| 1000 | private: |
| 1001 | enum { |
| 1002 | kIsEmbedderDebugScript = 1, |
| 1003 | kIsSharedCrossOrigin = 1 << 1, |
| 1004 | kIsOpaque = 1 << 2 |
| 1005 | }; |
| 1006 | const int flags_; |
| 1007 | }; |
| 1008 | |
| 1009 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1010 | * The origin, within a file, of a script. |
| 1011 | */ |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 1012 | class ScriptOrigin { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1013 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1014 | V8_INLINE ScriptOrigin( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1015 | Local<Value> resource_name, |
| 1016 | Local<Integer> resource_line_offset = Local<Integer>(), |
| 1017 | Local<Integer> resource_column_offset = Local<Integer>(), |
| 1018 | Local<Boolean> resource_is_shared_cross_origin = Local<Boolean>(), |
| 1019 | Local<Integer> script_id = Local<Integer>(), |
| 1020 | Local<Boolean> resource_is_embedder_debug_script = Local<Boolean>(), |
| 1021 | Local<Value> source_map_url = Local<Value>(), |
| 1022 | Local<Boolean> resource_is_opaque = Local<Boolean>()); |
| 1023 | V8_INLINE Local<Value> ResourceName() const; |
| 1024 | V8_INLINE Local<Integer> ResourceLineOffset() const; |
| 1025 | V8_INLINE Local<Integer> ResourceColumnOffset() const; |
| 1026 | /** |
| 1027 | * Returns true for embedder's debugger scripts |
| 1028 | */ |
| 1029 | V8_INLINE Local<Integer> ScriptID() const; |
| 1030 | V8_INLINE Local<Value> SourceMapUrl() const; |
| 1031 | V8_INLINE ScriptOriginOptions Options() const { return options_; } |
| 1032 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1033 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1034 | Local<Value> resource_name_; |
| 1035 | Local<Integer> resource_line_offset_; |
| 1036 | Local<Integer> resource_column_offset_; |
| 1037 | ScriptOriginOptions options_; |
| 1038 | Local<Integer> script_id_; |
| 1039 | Local<Value> source_map_url_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1040 | }; |
| 1041 | |
| 1042 | |
| 1043 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1044 | * A compiled JavaScript script, not yet tied to a Context. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1045 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1046 | class V8_EXPORT UnboundScript { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1047 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1048 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1049 | * Binds the script to the currently entered context. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1050 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1051 | Local<Script> BindToCurrentContext(); |
| 1052 | |
| 1053 | int GetId(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1054 | Local<Value> GetScriptName(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1055 | |
| 1056 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1057 | * Data read from magic sourceURL comments. |
| 1058 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1059 | Local<Value> GetSourceURL(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1060 | /** |
| 1061 | * Data read from magic sourceMappingURL comments. |
| 1062 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1063 | Local<Value> GetSourceMappingURL(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1064 | |
| 1065 | /** |
| 1066 | * Returns zero based line number of the code_pos location in the script. |
| 1067 | * -1 will be returned if no information available. |
| 1068 | */ |
| 1069 | int GetLineNumber(int code_pos); |
| 1070 | |
| 1071 | static const int kNoScriptId = 0; |
| 1072 | }; |
| 1073 | |
| 1074 | |
| 1075 | /** |
| 1076 | * A compiled JavaScript script, tied to a Context which was active when the |
| 1077 | * script was compiled. |
| 1078 | */ |
| 1079 | class V8_EXPORT Script { |
| 1080 | public: |
| 1081 | /** |
| 1082 | * A shorthand for ScriptCompiler::Compile(). |
| 1083 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1084 | static V8_DEPRECATE_SOON( |
| 1085 | "Use maybe version", |
| 1086 | Local<Script> Compile(Local<String> source, |
| 1087 | ScriptOrigin* origin = nullptr)); |
| 1088 | static V8_WARN_UNUSED_RESULT MaybeLocal<Script> Compile( |
| 1089 | Local<Context> context, Local<String> source, |
| 1090 | ScriptOrigin* origin = nullptr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1091 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1092 | static Local<Script> V8_DEPRECATE_SOON("Use maybe version", |
| 1093 | Compile(Local<String> source, |
| 1094 | Local<String> file_name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1095 | |
| 1096 | /** |
| 1097 | * Runs the script returning the resulting value. It will be run in the |
| 1098 | * context in which it was created (ScriptCompiler::CompileBound or |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1099 | * UnboundScript::BindToCurrentContext()). |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1100 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1101 | V8_DEPRECATE_SOON("Use maybe version", Local<Value> Run()); |
| 1102 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> Run(Local<Context> context); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1103 | |
| 1104 | /** |
| 1105 | * Returns the corresponding context-unbound script. |
| 1106 | */ |
| 1107 | Local<UnboundScript> GetUnboundScript(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1108 | }; |
| 1109 | |
| 1110 | |
| 1111 | /** |
| 1112 | * For compiling scripts. |
| 1113 | */ |
| 1114 | class V8_EXPORT ScriptCompiler { |
| 1115 | public: |
| 1116 | /** |
| 1117 | * Compilation data that the embedder can cache and pass back to speed up |
| 1118 | * future compilations. The data is produced if the CompilerOptions passed to |
| 1119 | * the compilation functions in ScriptCompiler contains produce_data_to_cache |
| 1120 | * = true. The data to cache can then can be retrieved from |
| 1121 | * UnboundScript. |
| 1122 | */ |
| 1123 | struct V8_EXPORT CachedData { |
| 1124 | enum BufferPolicy { |
| 1125 | BufferNotOwned, |
| 1126 | BufferOwned |
| 1127 | }; |
| 1128 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1129 | CachedData() |
| 1130 | : data(NULL), |
| 1131 | length(0), |
| 1132 | rejected(false), |
| 1133 | buffer_policy(BufferNotOwned) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1134 | |
| 1135 | // If buffer_policy is BufferNotOwned, the caller keeps the ownership of |
| 1136 | // data and guarantees that it stays alive until the CachedData object is |
| 1137 | // destroyed. If the policy is BufferOwned, the given data will be deleted |
| 1138 | // (with delete[]) when the CachedData object is destroyed. |
| 1139 | CachedData(const uint8_t* data, int length, |
| 1140 | BufferPolicy buffer_policy = BufferNotOwned); |
| 1141 | ~CachedData(); |
| 1142 | // TODO(marja): Async compilation; add constructors which take a callback |
| 1143 | // which will be called when V8 no longer needs the data. |
| 1144 | const uint8_t* data; |
| 1145 | int length; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1146 | bool rejected; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1147 | BufferPolicy buffer_policy; |
| 1148 | |
| 1149 | private: |
| 1150 | // Prevent copying. Not implemented. |
| 1151 | CachedData(const CachedData&); |
| 1152 | CachedData& operator=(const CachedData&); |
| 1153 | }; |
| 1154 | |
| 1155 | /** |
| 1156 | * Source code which can be then compiled to a UnboundScript or Script. |
| 1157 | */ |
| 1158 | class Source { |
| 1159 | public: |
| 1160 | // Source takes ownership of CachedData. |
| 1161 | V8_INLINE Source(Local<String> source_string, const ScriptOrigin& origin, |
| 1162 | CachedData* cached_data = NULL); |
| 1163 | V8_INLINE Source(Local<String> source_string, |
| 1164 | CachedData* cached_data = NULL); |
| 1165 | V8_INLINE ~Source(); |
| 1166 | |
| 1167 | // Ownership of the CachedData or its buffers is *not* transferred to the |
| 1168 | // caller. The CachedData object is alive as long as the Source object is |
| 1169 | // alive. |
| 1170 | V8_INLINE const CachedData* GetCachedData() const; |
| 1171 | |
| 1172 | private: |
| 1173 | friend class ScriptCompiler; |
| 1174 | // Prevent copying. Not implemented. |
| 1175 | Source(const Source&); |
| 1176 | Source& operator=(const Source&); |
| 1177 | |
| 1178 | Local<String> source_string; |
| 1179 | |
| 1180 | // Origin information |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1181 | Local<Value> resource_name; |
| 1182 | Local<Integer> resource_line_offset; |
| 1183 | Local<Integer> resource_column_offset; |
| 1184 | ScriptOriginOptions resource_options; |
| 1185 | Local<Value> source_map_url; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1186 | |
| 1187 | // Cached data from previous compilation (if a kConsume*Cache flag is |
| 1188 | // set), or hold newly generated cache data (kProduce*Cache flags) are |
| 1189 | // set when calling a compile method. |
| 1190 | CachedData* cached_data; |
| 1191 | }; |
| 1192 | |
| 1193 | /** |
| 1194 | * For streaming incomplete script data to V8. The embedder should implement a |
| 1195 | * subclass of this class. |
| 1196 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1197 | class V8_EXPORT ExternalSourceStream { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1198 | public: |
| 1199 | virtual ~ExternalSourceStream() {} |
| 1200 | |
| 1201 | /** |
| 1202 | * V8 calls this to request the next chunk of data from the embedder. This |
| 1203 | * function will be called on a background thread, so it's OK to block and |
| 1204 | * wait for the data, if the embedder doesn't have data yet. Returns the |
| 1205 | * length of the data returned. When the data ends, GetMoreData should |
| 1206 | * return 0. Caller takes ownership of the data. |
| 1207 | * |
| 1208 | * When streaming UTF-8 data, V8 handles multi-byte characters split between |
| 1209 | * two data chunks, but doesn't handle multi-byte characters split between |
| 1210 | * more than two data chunks. The embedder can avoid this problem by always |
| 1211 | * returning at least 2 bytes of data. |
| 1212 | * |
| 1213 | * If the embedder wants to cancel the streaming, they should make the next |
| 1214 | * GetMoreData call return 0. V8 will interpret it as end of data (and most |
| 1215 | * probably, parsing will fail). The streaming task will return as soon as |
| 1216 | * V8 has parsed the data it received so far. |
| 1217 | */ |
| 1218 | virtual size_t GetMoreData(const uint8_t** src) = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1219 | |
| 1220 | /** |
| 1221 | * V8 calls this method to set a 'bookmark' at the current position in |
| 1222 | * the source stream, for the purpose of (maybe) later calling |
| 1223 | * ResetToBookmark. If ResetToBookmark is called later, then subsequent |
| 1224 | * calls to GetMoreData should return the same data as they did when |
| 1225 | * SetBookmark was called earlier. |
| 1226 | * |
| 1227 | * The embedder may return 'false' to indicate it cannot provide this |
| 1228 | * functionality. |
| 1229 | */ |
| 1230 | virtual bool SetBookmark(); |
| 1231 | |
| 1232 | /** |
| 1233 | * V8 calls this to return to a previously set bookmark. |
| 1234 | */ |
| 1235 | virtual void ResetToBookmark(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1236 | }; |
| 1237 | |
| 1238 | |
| 1239 | /** |
| 1240 | * Source code which can be streamed into V8 in pieces. It will be parsed |
| 1241 | * while streaming. It can be compiled after the streaming is complete. |
| 1242 | * StreamedSource must be kept alive while the streaming task is ran (see |
| 1243 | * ScriptStreamingTask below). |
| 1244 | */ |
| 1245 | class V8_EXPORT StreamedSource { |
| 1246 | public: |
| 1247 | enum Encoding { ONE_BYTE, TWO_BYTE, UTF8 }; |
| 1248 | |
| 1249 | StreamedSource(ExternalSourceStream* source_stream, Encoding encoding); |
| 1250 | ~StreamedSource(); |
| 1251 | |
| 1252 | // Ownership of the CachedData or its buffers is *not* transferred to the |
| 1253 | // caller. The CachedData object is alive as long as the StreamedSource |
| 1254 | // object is alive. |
| 1255 | const CachedData* GetCachedData() const; |
| 1256 | |
| 1257 | internal::StreamedSource* impl() const { return impl_; } |
| 1258 | |
| 1259 | private: |
| 1260 | // Prevent copying. Not implemented. |
| 1261 | StreamedSource(const StreamedSource&); |
| 1262 | StreamedSource& operator=(const StreamedSource&); |
| 1263 | |
| 1264 | internal::StreamedSource* impl_; |
| 1265 | }; |
| 1266 | |
| 1267 | /** |
| 1268 | * A streaming task which the embedder must run on a background thread to |
| 1269 | * stream scripts into V8. Returned by ScriptCompiler::StartStreamingScript. |
| 1270 | */ |
| 1271 | class ScriptStreamingTask { |
| 1272 | public: |
| 1273 | virtual ~ScriptStreamingTask() {} |
| 1274 | virtual void Run() = 0; |
| 1275 | }; |
| 1276 | |
| 1277 | enum CompileOptions { |
| 1278 | kNoCompileOptions = 0, |
| 1279 | kProduceParserCache, |
| 1280 | kConsumeParserCache, |
| 1281 | kProduceCodeCache, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1282 | kConsumeCodeCache |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1283 | }; |
| 1284 | |
| 1285 | /** |
| 1286 | * Compiles the specified script (context-independent). |
| 1287 | * Cached data as part of the source object can be optionally produced to be |
| 1288 | * consumed later to speed up compilation of identical source scripts. |
| 1289 | * |
| 1290 | * Note that when producing cached data, the source must point to NULL for |
| 1291 | * cached data. When consuming cached data, the cached data must have been |
| 1292 | * produced by the same version of V8. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1293 | * |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1294 | * \param source Script source code. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1295 | * \return Compiled script object (context independent; for running it must be |
| 1296 | * bound to a context). |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1297 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1298 | static V8_DEPRECATED("Use maybe version", |
| 1299 | Local<UnboundScript> CompileUnbound( |
| 1300 | Isolate* isolate, Source* source, |
| 1301 | CompileOptions options = kNoCompileOptions)); |
| 1302 | static V8_WARN_UNUSED_RESULT MaybeLocal<UnboundScript> CompileUnboundScript( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1303 | Isolate* isolate, Source* source, |
| 1304 | CompileOptions options = kNoCompileOptions); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1305 | |
| 1306 | /** |
| 1307 | * Compiles the specified script (bound to current context). |
| 1308 | * |
| 1309 | * \param source Script source code. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1310 | * \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile() |
| 1311 | * using pre_data speeds compilation if it's done multiple times. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1312 | * Owned by caller, no references are kept when this function returns. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1313 | * \return Compiled script object, bound to the context that was active |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1314 | * when this function was called. When run it will always use this |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1315 | * context. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1316 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1317 | static V8_DEPRECATED( |
| 1318 | "Use maybe version", |
| 1319 | Local<Script> Compile(Isolate* isolate, Source* source, |
| 1320 | CompileOptions options = kNoCompileOptions)); |
| 1321 | static V8_WARN_UNUSED_RESULT MaybeLocal<Script> Compile( |
| 1322 | Local<Context> context, Source* source, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1323 | CompileOptions options = kNoCompileOptions); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1324 | |
| 1325 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1326 | * Returns a task which streams script data into V8, or NULL if the script |
| 1327 | * cannot be streamed. The user is responsible for running the task on a |
| 1328 | * background thread and deleting it. When ran, the task starts parsing the |
| 1329 | * script, and it will request data from the StreamedSource as needed. When |
| 1330 | * ScriptStreamingTask::Run exits, all data has been streamed and the script |
| 1331 | * can be compiled (see Compile below). |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1332 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1333 | * This API allows to start the streaming with as little data as possible, and |
| 1334 | * the remaining data (for example, the ScriptOrigin) is passed to Compile. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1335 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1336 | static ScriptStreamingTask* StartStreamingScript( |
| 1337 | Isolate* isolate, StreamedSource* source, |
| 1338 | CompileOptions options = kNoCompileOptions); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1339 | |
| 1340 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1341 | * Compiles a streamed script (bound to current context). |
| 1342 | * |
| 1343 | * This can only be called after the streaming has finished |
| 1344 | * (ScriptStreamingTask has been run). V8 doesn't construct the source string |
| 1345 | * during streaming, so the embedder needs to pass the full source here. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1346 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1347 | static V8_DEPRECATED("Use maybe version", |
| 1348 | Local<Script> Compile(Isolate* isolate, |
| 1349 | StreamedSource* source, |
| 1350 | Local<String> full_source_string, |
| 1351 | const ScriptOrigin& origin)); |
| 1352 | static V8_WARN_UNUSED_RESULT MaybeLocal<Script> Compile( |
| 1353 | Local<Context> context, StreamedSource* source, |
| 1354 | Local<String> full_source_string, const ScriptOrigin& origin); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1355 | |
| 1356 | /** |
| 1357 | * Return a version tag for CachedData for the current V8 version & flags. |
| 1358 | * |
| 1359 | * This value is meant only for determining whether a previously generated |
| 1360 | * CachedData instance is still valid; the tag has no other meaing. |
| 1361 | * |
| 1362 | * Background: The data carried by CachedData may depend on the exact |
| 1363 | * V8 version number or currently compiler flags. This means when |
| 1364 | * persisting CachedData, the embedder must take care to not pass in |
| 1365 | * data from another V8 version, or the same version with different |
| 1366 | * features enabled. |
| 1367 | * |
| 1368 | * The easiest way to do so is to clear the embedder's cache on any |
| 1369 | * such change. |
| 1370 | * |
| 1371 | * Alternatively, this tag can be stored alongside the cached data and |
| 1372 | * compared when it is being used. |
| 1373 | */ |
| 1374 | static uint32_t CachedDataVersionTag(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1375 | |
| 1376 | /** |
| 1377 | * Compile an ES6 module. |
| 1378 | * |
| 1379 | * This is an unfinished experimental feature, and is only exposed |
| 1380 | * here for internal testing purposes. |
| 1381 | * Only parsing works at the moment. Do not use. |
| 1382 | * |
| 1383 | * TODO(adamk): Script is likely the wrong return value for this; |
| 1384 | * should return some new Module type. |
| 1385 | */ |
| 1386 | static V8_WARN_UNUSED_RESULT MaybeLocal<Script> CompileModule( |
| 1387 | Local<Context> context, Source* source, |
| 1388 | CompileOptions options = kNoCompileOptions); |
| 1389 | |
| 1390 | /** |
| 1391 | * Compile a function for a given context. This is equivalent to running |
| 1392 | * |
| 1393 | * with (obj) { |
| 1394 | * return function(args) { ... } |
| 1395 | * } |
| 1396 | * |
| 1397 | * It is possible to specify multiple context extensions (obj in the above |
| 1398 | * example). |
| 1399 | */ |
| 1400 | static V8_DEPRECATE_SOON("Use maybe version", |
| 1401 | Local<Function> CompileFunctionInContext( |
| 1402 | Isolate* isolate, Source* source, |
| 1403 | Local<Context> context, size_t arguments_count, |
| 1404 | Local<String> arguments[], |
| 1405 | size_t context_extension_count, |
| 1406 | Local<Object> context_extensions[])); |
| 1407 | static V8_WARN_UNUSED_RESULT MaybeLocal<Function> CompileFunctionInContext( |
| 1408 | Local<Context> context, Source* source, size_t arguments_count, |
| 1409 | Local<String> arguments[], size_t context_extension_count, |
| 1410 | Local<Object> context_extensions[]); |
| 1411 | |
| 1412 | private: |
| 1413 | static V8_WARN_UNUSED_RESULT MaybeLocal<UnboundScript> CompileUnboundInternal( |
| 1414 | Isolate* isolate, Source* source, CompileOptions options, bool is_module); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1415 | }; |
| 1416 | |
| 1417 | |
| 1418 | /** |
| 1419 | * An error message. |
| 1420 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1421 | class V8_EXPORT Message { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1422 | public: |
| 1423 | Local<String> Get() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1424 | |
| 1425 | V8_DEPRECATE_SOON("Use maybe version", Local<String> GetSourceLine() const); |
| 1426 | V8_WARN_UNUSED_RESULT MaybeLocal<String> GetSourceLine( |
| 1427 | Local<Context> context) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1428 | |
| 1429 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1430 | * Returns the origin for the script from where the function causing the |
| 1431 | * error originates. |
| 1432 | */ |
| 1433 | ScriptOrigin GetScriptOrigin() const; |
| 1434 | |
| 1435 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1436 | * Returns the resource name for the script from where the function causing |
| 1437 | * the error originates. |
| 1438 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1439 | Local<Value> GetScriptResourceName() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1440 | |
| 1441 | /** |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 1442 | * Exception stack trace. By default stack traces are not captured for |
| 1443 | * uncaught exceptions. SetCaptureStackTraceForUncaughtExceptions allows |
| 1444 | * to change this option. |
| 1445 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1446 | Local<StackTrace> GetStackTrace() const; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 1447 | |
| 1448 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1449 | * Returns the number, 1-based, of the line where the error occurred. |
| 1450 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1451 | V8_DEPRECATE_SOON("Use maybe version", int GetLineNumber() const); |
| 1452 | V8_WARN_UNUSED_RESULT Maybe<int> GetLineNumber(Local<Context> context) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1453 | |
| 1454 | /** |
| 1455 | * Returns the index within the script of the first character where |
| 1456 | * the error occurred. |
| 1457 | */ |
| 1458 | int GetStartPosition() const; |
| 1459 | |
| 1460 | /** |
| 1461 | * Returns the index within the script of the last character where |
| 1462 | * the error occurred. |
| 1463 | */ |
| 1464 | int GetEndPosition() const; |
| 1465 | |
| 1466 | /** |
| 1467 | * Returns the index within the line of the first character where |
| 1468 | * the error occurred. |
| 1469 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1470 | V8_DEPRECATE_SOON("Use maybe version", int GetStartColumn() const); |
| 1471 | V8_WARN_UNUSED_RESULT Maybe<int> GetStartColumn(Local<Context> context) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1472 | |
| 1473 | /** |
| 1474 | * Returns the index within the line of the last character where |
| 1475 | * the error occurred. |
| 1476 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1477 | V8_DEPRECATED("Use maybe version", int GetEndColumn() const); |
| 1478 | V8_WARN_UNUSED_RESULT Maybe<int> GetEndColumn(Local<Context> context) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1479 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1480 | /** |
| 1481 | * Passes on the value set by the embedder when it fed the script from which |
| 1482 | * this Message was generated to V8. |
| 1483 | */ |
| 1484 | bool IsSharedCrossOrigin() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1485 | bool IsOpaque() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1486 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1487 | // TODO(1245381): Print to a string instead of on a FILE. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1488 | static void PrintCurrentStackTrace(Isolate* isolate, FILE* out); |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1489 | |
| 1490 | static const int kNoLineNumberInfo = 0; |
| 1491 | static const int kNoColumnInfo = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1492 | static const int kNoScriptIdInfo = 0; |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1493 | }; |
| 1494 | |
| 1495 | |
| 1496 | /** |
| 1497 | * Representation of a JavaScript stack trace. The information collected is a |
| 1498 | * snapshot of the execution stack and the information remains valid after |
| 1499 | * execution continues. |
| 1500 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1501 | class V8_EXPORT StackTrace { |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1502 | public: |
| 1503 | /** |
| 1504 | * Flags that determine what information is placed captured for each |
| 1505 | * StackFrame when grabbing the current stack trace. |
| 1506 | */ |
| 1507 | enum StackTraceOptions { |
| 1508 | kLineNumber = 1, |
| 1509 | kColumnOffset = 1 << 1 | kLineNumber, |
| 1510 | kScriptName = 1 << 2, |
| 1511 | kFunctionName = 1 << 3, |
| 1512 | kIsEval = 1 << 4, |
| 1513 | kIsConstructor = 1 << 5, |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1514 | kScriptNameOrSourceURL = 1 << 6, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1515 | kScriptId = 1 << 7, |
| 1516 | kExposeFramesAcrossSecurityOrigins = 1 << 8, |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1517 | kOverview = kLineNumber | kColumnOffset | kScriptName | kFunctionName, |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1518 | kDetailed = kOverview | kIsEval | kIsConstructor | kScriptNameOrSourceURL |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1519 | }; |
| 1520 | |
| 1521 | /** |
| 1522 | * Returns a StackFrame at a particular index. |
| 1523 | */ |
| 1524 | Local<StackFrame> GetFrame(uint32_t index) const; |
| 1525 | |
| 1526 | /** |
| 1527 | * Returns the number of StackFrames. |
| 1528 | */ |
| 1529 | int GetFrameCount() const; |
| 1530 | |
| 1531 | /** |
| 1532 | * Returns StackTrace as a v8::Array that contains StackFrame objects. |
| 1533 | */ |
| 1534 | Local<Array> AsArray(); |
| 1535 | |
| 1536 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1537 | * Grab a snapshot of the current JavaScript execution stack. |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1538 | * |
| 1539 | * \param frame_limit The maximum number of stack frames we want to capture. |
| 1540 | * \param options Enumerates the set of things we will capture for each |
| 1541 | * StackFrame. |
| 1542 | */ |
| 1543 | static Local<StackTrace> CurrentStackTrace( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1544 | Isolate* isolate, |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1545 | int frame_limit, |
| 1546 | StackTraceOptions options = kOverview); |
| 1547 | }; |
| 1548 | |
| 1549 | |
| 1550 | /** |
| 1551 | * A single JavaScript stack frame. |
| 1552 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1553 | class V8_EXPORT StackFrame { |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1554 | public: |
| 1555 | /** |
| 1556 | * Returns the number, 1-based, of the line for the associate function call. |
| 1557 | * This method will return Message::kNoLineNumberInfo if it is unable to |
| 1558 | * retrieve the line number, or if kLineNumber was not passed as an option |
| 1559 | * when capturing the StackTrace. |
| 1560 | */ |
| 1561 | int GetLineNumber() const; |
| 1562 | |
| 1563 | /** |
| 1564 | * Returns the 1-based column offset on the line for the associated function |
| 1565 | * call. |
| 1566 | * This method will return Message::kNoColumnInfo if it is unable to retrieve |
| 1567 | * the column number, or if kColumnOffset was not passed as an option when |
| 1568 | * capturing the StackTrace. |
| 1569 | */ |
| 1570 | int GetColumn() const; |
| 1571 | |
| 1572 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1573 | * Returns the id of the script for the function for this StackFrame. |
| 1574 | * This method will return Message::kNoScriptIdInfo if it is unable to |
| 1575 | * retrieve the script id, or if kScriptId was not passed as an option when |
| 1576 | * capturing the StackTrace. |
| 1577 | */ |
| 1578 | int GetScriptId() const; |
| 1579 | |
| 1580 | /** |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1581 | * Returns the name of the resource that contains the script for the |
| 1582 | * function for this StackFrame. |
| 1583 | */ |
| 1584 | Local<String> GetScriptName() const; |
| 1585 | |
| 1586 | /** |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1587 | * Returns the name of the resource that contains the script for the |
| 1588 | * function for this StackFrame or sourceURL value if the script name |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1589 | * is undefined and its source ends with //# sourceURL=... string or |
| 1590 | * deprecated //@ sourceURL=... string. |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1591 | */ |
| 1592 | Local<String> GetScriptNameOrSourceURL() const; |
| 1593 | |
| 1594 | /** |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1595 | * Returns the name of the function associated with this stack frame. |
| 1596 | */ |
| 1597 | Local<String> GetFunctionName() const; |
| 1598 | |
| 1599 | /** |
| 1600 | * Returns whether or not the associated function is compiled via a call to |
| 1601 | * eval(). |
| 1602 | */ |
| 1603 | bool IsEval() const; |
| 1604 | |
| 1605 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1606 | * Returns whether or not the associated function is called as a |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 1607 | * constructor via "new". |
| 1608 | */ |
| 1609 | bool IsConstructor() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1610 | }; |
| 1611 | |
| 1612 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1613 | // A StateTag represents a possible state of the VM. |
| 1614 | enum StateTag { JS, GC, COMPILER, OTHER, EXTERNAL, IDLE }; |
| 1615 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1616 | // A RegisterState represents the current state of registers used |
| 1617 | // by the sampling profiler API. |
| 1618 | struct RegisterState { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1619 | RegisterState() : pc(nullptr), sp(nullptr), fp(nullptr) {} |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1620 | void* pc; // Instruction pointer. |
| 1621 | void* sp; // Stack pointer. |
| 1622 | void* fp; // Frame pointer. |
| 1623 | }; |
| 1624 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1625 | // The output structure filled up by GetStackSample API function. |
| 1626 | struct SampleInfo { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1627 | size_t frames_count; // Number of frames collected. |
| 1628 | StateTag vm_state; // Current VM state. |
| 1629 | void* external_callback_entry; // External callback address if VM is |
| 1630 | // executing an external callback. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1631 | }; |
| 1632 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1633 | /** |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1634 | * A JSON Parser and Stringifier. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1635 | */ |
| 1636 | class V8_EXPORT JSON { |
| 1637 | public: |
| 1638 | /** |
| 1639 | * Tries to parse the string |json_string| and returns it as value if |
| 1640 | * successful. |
| 1641 | * |
| 1642 | * \param json_string The string to parse. |
| 1643 | * \return The corresponding value if successfully parsed. |
| 1644 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1645 | static V8_DEPRECATED("Use the maybe version taking context", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1646 | Local<Value> Parse(Local<String> json_string)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1647 | static V8_DEPRECATE_SOON("Use the maybe version taking context", |
| 1648 | MaybeLocal<Value> Parse(Isolate* isolate, |
| 1649 | Local<String> json_string)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1650 | static V8_WARN_UNUSED_RESULT MaybeLocal<Value> Parse( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1651 | Local<Context> context, Local<String> json_string); |
| 1652 | |
| 1653 | /** |
| 1654 | * Tries to stringify the JSON-serializable object |json_object| and returns |
| 1655 | * it as string if successful. |
| 1656 | * |
| 1657 | * \param json_object The JSON-serializable object to stringify. |
| 1658 | * \return The corresponding string if successfully stringified. |
| 1659 | */ |
| 1660 | static V8_WARN_UNUSED_RESULT MaybeLocal<String> Stringify( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1661 | Local<Context> context, Local<Object> json_object, |
| 1662 | Local<String> gap = Local<String>()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1663 | }; |
| 1664 | |
| 1665 | |
| 1666 | /** |
| 1667 | * A map whose keys are referenced weakly. It is similar to JavaScript WeakMap |
| 1668 | * but can be created without entering a v8::Context and hence shouldn't |
| 1669 | * escape to JavaScript. |
| 1670 | */ |
| 1671 | class V8_EXPORT NativeWeakMap : public Data { |
| 1672 | public: |
| 1673 | static Local<NativeWeakMap> New(Isolate* isolate); |
| 1674 | void Set(Local<Value> key, Local<Value> value); |
| 1675 | Local<Value> Get(Local<Value> key); |
| 1676 | bool Has(Local<Value> key); |
| 1677 | bool Delete(Local<Value> key); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1678 | }; |
| 1679 | |
| 1680 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1681 | // --- Value --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1682 | |
| 1683 | |
| 1684 | /** |
| 1685 | * The superclass of all JavaScript values and objects. |
| 1686 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1687 | class V8_EXPORT Value : public Data { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1688 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1689 | /** |
| 1690 | * Returns true if this value is the undefined value. See ECMA-262 |
| 1691 | * 4.3.10. |
| 1692 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1693 | V8_INLINE bool IsUndefined() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1694 | |
| 1695 | /** |
| 1696 | * Returns true if this value is the null value. See ECMA-262 |
| 1697 | * 4.3.11. |
| 1698 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1699 | V8_INLINE bool IsNull() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1700 | |
| 1701 | /** |
| 1702 | * Returns true if this value is true. |
| 1703 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1704 | bool IsTrue() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1705 | |
| 1706 | /** |
| 1707 | * Returns true if this value is false. |
| 1708 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1709 | bool IsFalse() const; |
| 1710 | |
| 1711 | /** |
| 1712 | * Returns true if this value is a symbol or a string. |
| 1713 | * This is an experimental feature. |
| 1714 | */ |
| 1715 | bool IsName() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1716 | |
| 1717 | /** |
| 1718 | * Returns true if this value is an instance of the String type. |
| 1719 | * See ECMA-262 8.4. |
| 1720 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1721 | V8_INLINE bool IsString() const; |
| 1722 | |
| 1723 | /** |
| 1724 | * Returns true if this value is a symbol. |
| 1725 | * This is an experimental feature. |
| 1726 | */ |
| 1727 | bool IsSymbol() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1728 | |
| 1729 | /** |
| 1730 | * Returns true if this value is a function. |
| 1731 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1732 | bool IsFunction() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1733 | |
| 1734 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1735 | * Returns true if this value is an array. Note that it will return false for |
| 1736 | * an Proxy for an array. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1737 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1738 | bool IsArray() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1739 | |
| 1740 | /** |
| 1741 | * Returns true if this value is an object. |
| 1742 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1743 | bool IsObject() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1744 | |
| 1745 | /** |
| 1746 | * Returns true if this value is boolean. |
| 1747 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1748 | bool IsBoolean() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1749 | |
| 1750 | /** |
| 1751 | * Returns true if this value is a number. |
| 1752 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1753 | bool IsNumber() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1754 | |
| 1755 | /** |
| 1756 | * Returns true if this value is external. |
| 1757 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1758 | bool IsExternal() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1759 | |
| 1760 | /** |
| 1761 | * Returns true if this value is a 32-bit signed integer. |
| 1762 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1763 | bool IsInt32() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1764 | |
| 1765 | /** |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1766 | * Returns true if this value is a 32-bit unsigned integer. |
| 1767 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1768 | bool IsUint32() const; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1769 | |
| 1770 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1771 | * Returns true if this value is a Date. |
| 1772 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1773 | bool IsDate() const; |
| 1774 | |
| 1775 | /** |
| 1776 | * Returns true if this value is an Arguments object. |
| 1777 | */ |
| 1778 | bool IsArgumentsObject() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1779 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1780 | /** |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1781 | * Returns true if this value is a Boolean object. |
| 1782 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1783 | bool IsBooleanObject() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1784 | |
| 1785 | /** |
| 1786 | * Returns true if this value is a Number object. |
| 1787 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1788 | bool IsNumberObject() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1789 | |
| 1790 | /** |
| 1791 | * Returns true if this value is a String object. |
| 1792 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1793 | bool IsStringObject() const; |
| 1794 | |
| 1795 | /** |
| 1796 | * Returns true if this value is a Symbol object. |
| 1797 | * This is an experimental feature. |
| 1798 | */ |
| 1799 | bool IsSymbolObject() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1800 | |
| 1801 | /** |
| 1802 | * Returns true if this value is a NativeError. |
| 1803 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1804 | bool IsNativeError() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1805 | |
| 1806 | /** |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1807 | * Returns true if this value is a RegExp. |
| 1808 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1809 | bool IsRegExp() const; |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1810 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1811 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1812 | * Returns true if this value is a Generator function. |
| 1813 | * This is an experimental feature. |
| 1814 | */ |
| 1815 | bool IsGeneratorFunction() const; |
| 1816 | |
| 1817 | /** |
| 1818 | * Returns true if this value is a Generator object (iterator). |
| 1819 | * This is an experimental feature. |
| 1820 | */ |
| 1821 | bool IsGeneratorObject() const; |
| 1822 | |
| 1823 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1824 | * Returns true if this value is a Promise. |
| 1825 | * This is an experimental feature. |
| 1826 | */ |
| 1827 | bool IsPromise() const; |
| 1828 | |
| 1829 | /** |
| 1830 | * Returns true if this value is a Map. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1831 | */ |
| 1832 | bool IsMap() const; |
| 1833 | |
| 1834 | /** |
| 1835 | * Returns true if this value is a Set. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1836 | */ |
| 1837 | bool IsSet() const; |
| 1838 | |
| 1839 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1840 | * Returns true if this value is a Map Iterator. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1841 | */ |
| 1842 | bool IsMapIterator() const; |
| 1843 | |
| 1844 | /** |
| 1845 | * Returns true if this value is a Set Iterator. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1846 | */ |
| 1847 | bool IsSetIterator() const; |
| 1848 | |
| 1849 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1850 | * Returns true if this value is a WeakMap. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1851 | */ |
| 1852 | bool IsWeakMap() const; |
| 1853 | |
| 1854 | /** |
| 1855 | * Returns true if this value is a WeakSet. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1856 | */ |
| 1857 | bool IsWeakSet() const; |
| 1858 | |
| 1859 | /** |
| 1860 | * Returns true if this value is an ArrayBuffer. |
| 1861 | * This is an experimental feature. |
| 1862 | */ |
| 1863 | bool IsArrayBuffer() const; |
| 1864 | |
| 1865 | /** |
| 1866 | * Returns true if this value is an ArrayBufferView. |
| 1867 | * This is an experimental feature. |
| 1868 | */ |
| 1869 | bool IsArrayBufferView() const; |
| 1870 | |
| 1871 | /** |
| 1872 | * Returns true if this value is one of TypedArrays. |
| 1873 | * This is an experimental feature. |
| 1874 | */ |
| 1875 | bool IsTypedArray() const; |
| 1876 | |
| 1877 | /** |
| 1878 | * Returns true if this value is an Uint8Array. |
| 1879 | * This is an experimental feature. |
| 1880 | */ |
| 1881 | bool IsUint8Array() const; |
| 1882 | |
| 1883 | /** |
| 1884 | * Returns true if this value is an Uint8ClampedArray. |
| 1885 | * This is an experimental feature. |
| 1886 | */ |
| 1887 | bool IsUint8ClampedArray() const; |
| 1888 | |
| 1889 | /** |
| 1890 | * Returns true if this value is an Int8Array. |
| 1891 | * This is an experimental feature. |
| 1892 | */ |
| 1893 | bool IsInt8Array() const; |
| 1894 | |
| 1895 | /** |
| 1896 | * Returns true if this value is an Uint16Array. |
| 1897 | * This is an experimental feature. |
| 1898 | */ |
| 1899 | bool IsUint16Array() const; |
| 1900 | |
| 1901 | /** |
| 1902 | * Returns true if this value is an Int16Array. |
| 1903 | * This is an experimental feature. |
| 1904 | */ |
| 1905 | bool IsInt16Array() const; |
| 1906 | |
| 1907 | /** |
| 1908 | * Returns true if this value is an Uint32Array. |
| 1909 | * This is an experimental feature. |
| 1910 | */ |
| 1911 | bool IsUint32Array() const; |
| 1912 | |
| 1913 | /** |
| 1914 | * Returns true if this value is an Int32Array. |
| 1915 | * This is an experimental feature. |
| 1916 | */ |
| 1917 | bool IsInt32Array() const; |
| 1918 | |
| 1919 | /** |
| 1920 | * Returns true if this value is a Float32Array. |
| 1921 | * This is an experimental feature. |
| 1922 | */ |
| 1923 | bool IsFloat32Array() const; |
| 1924 | |
| 1925 | /** |
| 1926 | * Returns true if this value is a Float64Array. |
| 1927 | * This is an experimental feature. |
| 1928 | */ |
| 1929 | bool IsFloat64Array() const; |
| 1930 | |
| 1931 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1932 | * Returns true if this value is a SIMD Float32x4. |
| 1933 | * This is an experimental feature. |
| 1934 | */ |
| 1935 | bool IsFloat32x4() const; |
| 1936 | |
| 1937 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1938 | * Returns true if this value is a DataView. |
| 1939 | * This is an experimental feature. |
| 1940 | */ |
| 1941 | bool IsDataView() const; |
| 1942 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1943 | /** |
| 1944 | * Returns true if this value is a SharedArrayBuffer. |
| 1945 | * This is an experimental feature. |
| 1946 | */ |
| 1947 | bool IsSharedArrayBuffer() const; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1948 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1949 | /** |
| 1950 | * Returns true if this value is a JavaScript Proxy. |
| 1951 | */ |
| 1952 | bool IsProxy() const; |
| 1953 | |
| 1954 | |
| 1955 | V8_WARN_UNUSED_RESULT MaybeLocal<Boolean> ToBoolean( |
| 1956 | Local<Context> context) const; |
| 1957 | V8_WARN_UNUSED_RESULT MaybeLocal<Number> ToNumber( |
| 1958 | Local<Context> context) const; |
| 1959 | V8_WARN_UNUSED_RESULT MaybeLocal<String> ToString( |
| 1960 | Local<Context> context) const; |
| 1961 | V8_WARN_UNUSED_RESULT MaybeLocal<String> ToDetailString( |
| 1962 | Local<Context> context) const; |
| 1963 | V8_WARN_UNUSED_RESULT MaybeLocal<Object> ToObject( |
| 1964 | Local<Context> context) const; |
| 1965 | V8_WARN_UNUSED_RESULT MaybeLocal<Integer> ToInteger( |
| 1966 | Local<Context> context) const; |
| 1967 | V8_WARN_UNUSED_RESULT MaybeLocal<Uint32> ToUint32( |
| 1968 | Local<Context> context) const; |
| 1969 | V8_WARN_UNUSED_RESULT MaybeLocal<Int32> ToInt32(Local<Context> context) const; |
| 1970 | |
| 1971 | V8_DEPRECATE_SOON("Use maybe version", |
| 1972 | Local<Boolean> ToBoolean(Isolate* isolate) const); |
| 1973 | V8_DEPRECATE_SOON("Use maybe version", |
| 1974 | Local<Number> ToNumber(Isolate* isolate) const); |
| 1975 | V8_DEPRECATE_SOON("Use maybe version", |
| 1976 | Local<String> ToString(Isolate* isolate) const); |
| 1977 | V8_DEPRECATED("Use maybe version", |
| 1978 | Local<String> ToDetailString(Isolate* isolate) const); |
| 1979 | V8_DEPRECATE_SOON("Use maybe version", |
| 1980 | Local<Object> ToObject(Isolate* isolate) const); |
| 1981 | V8_DEPRECATE_SOON("Use maybe version", |
| 1982 | Local<Integer> ToInteger(Isolate* isolate) const); |
| 1983 | V8_DEPRECATED("Use maybe version", |
| 1984 | Local<Uint32> ToUint32(Isolate* isolate) const); |
| 1985 | V8_DEPRECATE_SOON("Use maybe version", |
| 1986 | Local<Int32> ToInt32(Isolate* isolate) const); |
| 1987 | |
| 1988 | inline V8_DEPRECATE_SOON("Use maybe version", |
| 1989 | Local<Boolean> ToBoolean() const); |
| 1990 | inline V8_DEPRECATED("Use maybe version", Local<Number> ToNumber() const); |
| 1991 | inline V8_DEPRECATE_SOON("Use maybe version", Local<String> ToString() const); |
| 1992 | inline V8_DEPRECATED("Use maybe version", |
| 1993 | Local<String> ToDetailString() const); |
| 1994 | inline V8_DEPRECATE_SOON("Use maybe version", Local<Object> ToObject() const); |
| 1995 | inline V8_DEPRECATE_SOON("Use maybe version", |
| 1996 | Local<Integer> ToInteger() const); |
| 1997 | inline V8_DEPRECATED("Use maybe version", Local<Uint32> ToUint32() const); |
| 1998 | inline V8_DEPRECATED("Use maybe version", Local<Int32> ToInt32() const); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1999 | |
| 2000 | /** |
| 2001 | * Attempts to convert a string to an array index. |
| 2002 | * Returns an empty handle if the conversion fails. |
| 2003 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2004 | V8_DEPRECATED("Use maybe version", Local<Uint32> ToArrayIndex() const); |
| 2005 | V8_WARN_UNUSED_RESULT MaybeLocal<Uint32> ToArrayIndex( |
| 2006 | Local<Context> context) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2007 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2008 | V8_WARN_UNUSED_RESULT Maybe<bool> BooleanValue(Local<Context> context) const; |
| 2009 | V8_WARN_UNUSED_RESULT Maybe<double> NumberValue(Local<Context> context) const; |
| 2010 | V8_WARN_UNUSED_RESULT Maybe<int64_t> IntegerValue( |
| 2011 | Local<Context> context) const; |
| 2012 | V8_WARN_UNUSED_RESULT Maybe<uint32_t> Uint32Value( |
| 2013 | Local<Context> context) const; |
| 2014 | V8_WARN_UNUSED_RESULT Maybe<int32_t> Int32Value(Local<Context> context) const; |
| 2015 | |
| 2016 | V8_DEPRECATE_SOON("Use maybe version", bool BooleanValue() const); |
| 2017 | V8_DEPRECATE_SOON("Use maybe version", double NumberValue() const); |
| 2018 | V8_DEPRECATE_SOON("Use maybe version", int64_t IntegerValue() const); |
| 2019 | V8_DEPRECATE_SOON("Use maybe version", uint32_t Uint32Value() const); |
| 2020 | V8_DEPRECATE_SOON("Use maybe version", int32_t Int32Value() const); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2021 | |
| 2022 | /** JS == */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2023 | V8_DEPRECATE_SOON("Use maybe version", bool Equals(Local<Value> that) const); |
| 2024 | V8_WARN_UNUSED_RESULT Maybe<bool> Equals(Local<Context> context, |
| 2025 | Local<Value> that) const; |
| 2026 | bool StrictEquals(Local<Value> that) const; |
| 2027 | bool SameValue(Local<Value> that) const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2028 | |
| 2029 | template <class T> V8_INLINE static Value* Cast(T* value); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2030 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2031 | Local<String> TypeOf(v8::Isolate*); |
| 2032 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2033 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2034 | V8_INLINE bool QuickIsUndefined() const; |
| 2035 | V8_INLINE bool QuickIsNull() const; |
| 2036 | V8_INLINE bool QuickIsString() const; |
| 2037 | bool FullIsUndefined() const; |
| 2038 | bool FullIsNull() const; |
| 2039 | bool FullIsString() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2040 | }; |
| 2041 | |
| 2042 | |
| 2043 | /** |
| 2044 | * The superclass of primitive values. See ECMA-262 4.3.2. |
| 2045 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2046 | class V8_EXPORT Primitive : public Value { }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2047 | |
| 2048 | |
| 2049 | /** |
| 2050 | * A primitive boolean value (ECMA-262, 4.3.14). Either the true |
| 2051 | * or false value. |
| 2052 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2053 | class V8_EXPORT Boolean : public Primitive { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2054 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2055 | bool Value() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2056 | V8_INLINE static Boolean* Cast(v8::Value* obj); |
| 2057 | V8_INLINE static Local<Boolean> New(Isolate* isolate, bool value); |
| 2058 | |
| 2059 | private: |
| 2060 | static void CheckCast(v8::Value* obj); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2061 | }; |
| 2062 | |
| 2063 | |
| 2064 | /** |
| 2065 | * A superclass for symbols and strings. |
| 2066 | */ |
| 2067 | class V8_EXPORT Name : public Primitive { |
| 2068 | public: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2069 | /** |
| 2070 | * Returns the identity hash for this object. The current implementation |
| 2071 | * uses an inline property on the object to store the identity hash. |
| 2072 | * |
| 2073 | * The return value will never be 0. Also, it is not guaranteed to be |
| 2074 | * unique. |
| 2075 | */ |
| 2076 | int GetIdentityHash(); |
| 2077 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2078 | V8_INLINE static Name* Cast(v8::Value* obj); |
| 2079 | private: |
| 2080 | static void CheckCast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2081 | }; |
| 2082 | |
| 2083 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2084 | enum class NewStringType { kNormal, kInternalized }; |
| 2085 | |
| 2086 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2087 | /** |
| 2088 | * A JavaScript string value (ECMA-262, 4.3.17). |
| 2089 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2090 | class V8_EXPORT String : public Name { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2091 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2092 | static const int kMaxLength = (1 << 28) - 16; |
| 2093 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2094 | enum Encoding { |
| 2095 | UNKNOWN_ENCODING = 0x1, |
| 2096 | TWO_BYTE_ENCODING = 0x0, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2097 | ONE_BYTE_ENCODING = 0x4 |
| 2098 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2099 | /** |
| 2100 | * Returns the number of characters in this string. |
| 2101 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2102 | int Length() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2103 | |
| 2104 | /** |
| 2105 | * Returns the number of bytes in the UTF-8 encoded |
| 2106 | * representation of this string. |
| 2107 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2108 | int Utf8Length() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2109 | |
| 2110 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2111 | * Returns whether this string is known to contain only one byte data. |
| 2112 | * Does not read the string. |
| 2113 | * False negatives are possible. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2114 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2115 | bool IsOneByte() const; |
| 2116 | |
| 2117 | /** |
| 2118 | * Returns whether this string contain only one byte data. |
| 2119 | * Will read the entire string in some cases. |
| 2120 | */ |
| 2121 | bool ContainsOnlyOneByte() const; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2122 | |
| 2123 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2124 | * Write the contents of the string to an external buffer. |
| 2125 | * If no arguments are given, expects the buffer to be large |
| 2126 | * enough to hold the entire string and NULL terminator. Copies |
| 2127 | * the contents of the string and the NULL terminator into the |
| 2128 | * buffer. |
| 2129 | * |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2130 | * WriteUtf8 will not write partial UTF-8 sequences, preferring to stop |
| 2131 | * before the end of the buffer. |
| 2132 | * |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2133 | * Copies up to length characters into the output buffer. |
| 2134 | * Only null-terminates if there is enough space in the buffer. |
| 2135 | * |
| 2136 | * \param buffer The buffer into which the string will be copied. |
| 2137 | * \param start The starting position within the string at which |
| 2138 | * copying begins. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2139 | * \param length The number of characters to copy from the string. For |
| 2140 | * WriteUtf8 the number of bytes in the buffer. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2141 | * \param nchars_ref The number of characters written, can be NULL. |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2142 | * \param options Various options that might affect performance of this or |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2143 | * subsequent operations. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2144 | * \return The number of characters copied to the buffer excluding the null |
| 2145 | * terminator. For WriteUtf8: The number of bytes copied to the buffer |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2146 | * including the null terminator (if written). |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2147 | */ |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2148 | enum WriteOptions { |
| 2149 | NO_OPTIONS = 0, |
| 2150 | HINT_MANY_WRITES_EXPECTED = 1, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2151 | NO_NULL_TERMINATION = 2, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2152 | PRESERVE_ONE_BYTE_NULL = 4, |
| 2153 | // Used by WriteUtf8 to replace orphan surrogate code units with the |
| 2154 | // unicode replacement character. Needs to be set to guarantee valid UTF-8 |
| 2155 | // output. |
| 2156 | REPLACE_INVALID_UTF8 = 8 |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2157 | }; |
| 2158 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 2159 | // 16-bit character codes. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2160 | int Write(uint16_t* buffer, |
| 2161 | int start = 0, |
| 2162 | int length = -1, |
| 2163 | int options = NO_OPTIONS) const; |
| 2164 | // One byte characters. |
| 2165 | int WriteOneByte(uint8_t* buffer, |
| 2166 | int start = 0, |
| 2167 | int length = -1, |
| 2168 | int options = NO_OPTIONS) const; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 2169 | // UTF-8 encoded characters. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2170 | int WriteUtf8(char* buffer, |
| 2171 | int length = -1, |
| 2172 | int* nchars_ref = NULL, |
| 2173 | int options = NO_OPTIONS) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2174 | |
| 2175 | /** |
| 2176 | * A zero length string. |
| 2177 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2178 | V8_INLINE static v8::Local<v8::String> Empty(Isolate* isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2179 | |
| 2180 | /** |
| 2181 | * Returns true if the string is external |
| 2182 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2183 | bool IsExternal() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2184 | |
| 2185 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2186 | * Returns true if the string is both external and one-byte. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2187 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2188 | bool IsExternalOneByte() const; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2189 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2190 | class V8_EXPORT ExternalStringResourceBase { // NOLINT |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2191 | public: |
| 2192 | virtual ~ExternalStringResourceBase() {} |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2193 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2194 | virtual bool IsCompressible() const { return false; } |
| 2195 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2196 | protected: |
| 2197 | ExternalStringResourceBase() {} |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2198 | |
| 2199 | /** |
| 2200 | * Internally V8 will call this Dispose method when the external string |
| 2201 | * resource is no longer needed. The default implementation will use the |
| 2202 | * delete operator. This method can be overridden in subclasses to |
| 2203 | * control how allocated external string resources are disposed. |
| 2204 | */ |
| 2205 | virtual void Dispose() { delete this; } |
| 2206 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2207 | private: |
| 2208 | // Disallow copying and assigning. |
| 2209 | ExternalStringResourceBase(const ExternalStringResourceBase&); |
| 2210 | void operator=(const ExternalStringResourceBase&); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2211 | |
| 2212 | friend class v8::internal::Heap; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2213 | }; |
| 2214 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2215 | /** |
| 2216 | * An ExternalStringResource is a wrapper around a two-byte string |
| 2217 | * buffer that resides outside V8's heap. Implement an |
| 2218 | * ExternalStringResource to manage the life cycle of the underlying |
| 2219 | * buffer. Note that the string data must be immutable. |
| 2220 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2221 | class V8_EXPORT ExternalStringResource |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2222 | : public ExternalStringResourceBase { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2223 | public: |
| 2224 | /** |
| 2225 | * Override the destructor to manage the life cycle of the underlying |
| 2226 | * buffer. |
| 2227 | */ |
| 2228 | virtual ~ExternalStringResource() {} |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2229 | |
| 2230 | /** |
| 2231 | * The string data from the underlying buffer. |
| 2232 | */ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2233 | virtual const uint16_t* data() const = 0; |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2234 | |
| 2235 | /** |
| 2236 | * The length of the string. That is, the number of two-byte characters. |
| 2237 | */ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2238 | virtual size_t length() const = 0; |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2239 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2240 | protected: |
| 2241 | ExternalStringResource() {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2242 | }; |
| 2243 | |
| 2244 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2245 | * An ExternalOneByteStringResource is a wrapper around an one-byte |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2246 | * string buffer that resides outside V8's heap. Implement an |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2247 | * ExternalOneByteStringResource to manage the life cycle of the |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2248 | * underlying buffer. Note that the string data must be immutable |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2249 | * and that the data must be Latin-1 and not UTF-8, which would require |
| 2250 | * special treatment internally in the engine and do not allow efficient |
| 2251 | * indexing. Use String::New or convert to 16 bit data for non-Latin1. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2252 | */ |
| 2253 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2254 | class V8_EXPORT ExternalOneByteStringResource |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2255 | : public ExternalStringResourceBase { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2256 | public: |
| 2257 | /** |
| 2258 | * Override the destructor to manage the life cycle of the underlying |
| 2259 | * buffer. |
| 2260 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2261 | virtual ~ExternalOneByteStringResource() {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2262 | /** The string data from the underlying buffer.*/ |
| 2263 | virtual const char* data() const = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2264 | /** The number of Latin-1 characters in the string.*/ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2265 | virtual size_t length() const = 0; |
| 2266 | protected: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2267 | ExternalOneByteStringResource() {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2268 | }; |
| 2269 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2270 | /** |
| 2271 | * If the string is an external string, return the ExternalStringResourceBase |
| 2272 | * regardless of the encoding, otherwise return NULL. The encoding of the |
| 2273 | * string is returned in encoding_out. |
| 2274 | */ |
| 2275 | V8_INLINE ExternalStringResourceBase* GetExternalStringResourceBase( |
| 2276 | Encoding* encoding_out) const; |
| 2277 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2278 | /** |
| 2279 | * Get the ExternalStringResource for an external string. Returns |
| 2280 | * NULL if IsExternal() doesn't return true. |
| 2281 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2282 | V8_INLINE ExternalStringResource* GetExternalStringResource() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2283 | |
| 2284 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2285 | * Get the ExternalOneByteStringResource for an external one-byte string. |
| 2286 | * Returns NULL if IsExternalOneByte() doesn't return true. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2287 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2288 | const ExternalOneByteStringResource* GetExternalOneByteStringResource() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2289 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2290 | V8_INLINE static String* Cast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2291 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2292 | // TODO(dcarney): remove with deprecation of New functions. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2293 | enum NewStringType { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2294 | kNormalString = static_cast<int>(v8::NewStringType::kNormal), |
| 2295 | kInternalizedString = static_cast<int>(v8::NewStringType::kInternalized) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2296 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2297 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2298 | /** Allocates a new string from UTF-8 data.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2299 | static V8_DEPRECATE_SOON( |
| 2300 | "Use maybe version", |
| 2301 | Local<String> NewFromUtf8(Isolate* isolate, const char* data, |
| 2302 | NewStringType type = kNormalString, |
| 2303 | int length = -1)); |
| 2304 | |
| 2305 | /** Allocates a new string from UTF-8 data. Only returns an empty value when |
| 2306 | * length > kMaxLength. **/ |
| 2307 | static V8_WARN_UNUSED_RESULT MaybeLocal<String> NewFromUtf8( |
| 2308 | Isolate* isolate, const char* data, v8::NewStringType type, |
| 2309 | int length = -1); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2310 | |
| 2311 | /** Allocates a new string from Latin-1 data.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2312 | static V8_DEPRECATED( |
| 2313 | "Use maybe version", |
| 2314 | Local<String> NewFromOneByte(Isolate* isolate, const uint8_t* data, |
| 2315 | NewStringType type = kNormalString, |
| 2316 | int length = -1)); |
| 2317 | |
| 2318 | /** Allocates a new string from Latin-1 data. Only returns an empty value |
| 2319 | * when length > kMaxLength. **/ |
| 2320 | static V8_WARN_UNUSED_RESULT MaybeLocal<String> NewFromOneByte( |
| 2321 | Isolate* isolate, const uint8_t* data, v8::NewStringType type, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2322 | int length = -1); |
| 2323 | |
| 2324 | /** Allocates a new string from UTF-16 data.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2325 | static V8_DEPRECATE_SOON( |
| 2326 | "Use maybe version", |
| 2327 | Local<String> NewFromTwoByte(Isolate* isolate, const uint16_t* data, |
| 2328 | NewStringType type = kNormalString, |
| 2329 | int length = -1)); |
| 2330 | |
| 2331 | /** Allocates a new string from UTF-16 data. Only returns an empty value when |
| 2332 | * length > kMaxLength. **/ |
| 2333 | static V8_WARN_UNUSED_RESULT MaybeLocal<String> NewFromTwoByte( |
| 2334 | Isolate* isolate, const uint16_t* data, v8::NewStringType type, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2335 | int length = -1); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2336 | |
| 2337 | /** |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2338 | * Creates a new string by concatenating the left and the right strings |
| 2339 | * passed in as parameters. |
| 2340 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2341 | static Local<String> Concat(Local<String> left, Local<String> right); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2342 | |
| 2343 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2344 | * Creates a new external string using the data defined in the given |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2345 | * resource. When the external string is no longer live on V8's heap the |
| 2346 | * resource will be disposed by calling its Dispose method. The caller of |
| 2347 | * this function should not otherwise delete or modify the resource. Neither |
| 2348 | * should the underlying buffer be deallocated or modified except through the |
| 2349 | * destructor of the external string resource. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2350 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2351 | static V8_DEPRECATED("Use maybe version", |
| 2352 | Local<String> NewExternal( |
| 2353 | Isolate* isolate, ExternalStringResource* resource)); |
| 2354 | static V8_WARN_UNUSED_RESULT MaybeLocal<String> NewExternalTwoByte( |
| 2355 | Isolate* isolate, ExternalStringResource* resource); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2356 | |
| 2357 | /** |
| 2358 | * Associate an external string resource with this string by transforming it |
| 2359 | * in place so that existing references to this string in the JavaScript heap |
| 2360 | * will use the external string resource. The external string resource's |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2361 | * character contents need to be equivalent to this string. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2362 | * Returns true if the string has been changed to be an external string. |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2363 | * The string is not modified if the operation fails. See NewExternal for |
| 2364 | * information on the lifetime of the resource. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2365 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2366 | bool MakeExternal(ExternalStringResource* resource); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2367 | |
| 2368 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2369 | * Creates a new external string using the one-byte data defined in the given |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2370 | * resource. When the external string is no longer live on V8's heap the |
| 2371 | * resource will be disposed by calling its Dispose method. The caller of |
| 2372 | * this function should not otherwise delete or modify the resource. Neither |
| 2373 | * should the underlying buffer be deallocated or modified except through the |
| 2374 | * destructor of the external string resource. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2375 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2376 | static V8_DEPRECATE_SOON( |
| 2377 | "Use maybe version", |
| 2378 | Local<String> NewExternal(Isolate* isolate, |
| 2379 | ExternalOneByteStringResource* resource)); |
| 2380 | static V8_WARN_UNUSED_RESULT MaybeLocal<String> NewExternalOneByte( |
| 2381 | Isolate* isolate, ExternalOneByteStringResource* resource); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2382 | |
| 2383 | /** |
| 2384 | * Associate an external string resource with this string by transforming it |
| 2385 | * in place so that existing references to this string in the JavaScript heap |
| 2386 | * will use the external string resource. The external string resource's |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2387 | * character contents need to be equivalent to this string. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2388 | * Returns true if the string has been changed to be an external string. |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2389 | * The string is not modified if the operation fails. See NewExternal for |
| 2390 | * information on the lifetime of the resource. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2391 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2392 | bool MakeExternal(ExternalOneByteStringResource* resource); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2393 | |
| 2394 | /** |
| 2395 | * Returns true if this string can be made external. |
| 2396 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2397 | bool CanMakeExternal(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2398 | |
| 2399 | /** |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 2400 | * Converts an object to a UTF-8-encoded character array. Useful if |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2401 | * you want to print the object. If conversion to a string fails |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 2402 | * (e.g. due to an exception in the toString() method of the object) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2403 | * then the length() method returns 0 and the * operator returns |
| 2404 | * NULL. |
| 2405 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2406 | class V8_EXPORT Utf8Value { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2407 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2408 | explicit Utf8Value(Local<v8::Value> obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2409 | ~Utf8Value(); |
| 2410 | char* operator*() { return str_; } |
| 2411 | const char* operator*() const { return str_; } |
| 2412 | int length() const { return length_; } |
| 2413 | private: |
| 2414 | char* str_; |
| 2415 | int length_; |
| 2416 | |
| 2417 | // Disallow copying and assigning. |
| 2418 | Utf8Value(const Utf8Value&); |
| 2419 | void operator=(const Utf8Value&); |
| 2420 | }; |
| 2421 | |
| 2422 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2423 | * Converts an object to a two-byte string. |
| 2424 | * If conversion to a string fails (eg. due to an exception in the toString() |
| 2425 | * method of the object) then the length() method returns 0 and the * operator |
| 2426 | * returns NULL. |
| 2427 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2428 | class V8_EXPORT Value { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2429 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2430 | explicit Value(Local<v8::Value> obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2431 | ~Value(); |
| 2432 | uint16_t* operator*() { return str_; } |
| 2433 | const uint16_t* operator*() const { return str_; } |
| 2434 | int length() const { return length_; } |
| 2435 | private: |
| 2436 | uint16_t* str_; |
| 2437 | int length_; |
| 2438 | |
| 2439 | // Disallow copying and assigning. |
| 2440 | Value(const Value&); |
| 2441 | void operator=(const Value&); |
| 2442 | }; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2443 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2444 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2445 | void VerifyExternalStringResourceBase(ExternalStringResourceBase* v, |
| 2446 | Encoding encoding) const; |
| 2447 | void VerifyExternalStringResource(ExternalStringResource* val) const; |
| 2448 | static void CheckCast(v8::Value* obj); |
| 2449 | }; |
| 2450 | |
| 2451 | |
| 2452 | /** |
| 2453 | * A JavaScript symbol (ECMA-262 edition 6) |
| 2454 | * |
| 2455 | * This is an experimental feature. Use at your own risk. |
| 2456 | */ |
| 2457 | class V8_EXPORT Symbol : public Name { |
| 2458 | public: |
| 2459 | // Returns the print name string of the symbol, or undefined if none. |
| 2460 | Local<Value> Name() const; |
| 2461 | |
| 2462 | // Create a symbol. If name is not empty, it will be used as the description. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2463 | static Local<Symbol> New(Isolate* isolate, |
| 2464 | Local<String> name = Local<String>()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2465 | |
| 2466 | // Access global symbol registry. |
| 2467 | // Note that symbols created this way are never collected, so |
| 2468 | // they should only be used for statically fixed properties. |
| 2469 | // Also, there is only one global name space for the names used as keys. |
| 2470 | // To minimize the potential for clashes, use qualified names as keys. |
| 2471 | static Local<Symbol> For(Isolate *isolate, Local<String> name); |
| 2472 | |
| 2473 | // Retrieve a global symbol. Similar to |For|, but using a separate |
| 2474 | // registry that is not accessible by (and cannot clash with) JavaScript code. |
| 2475 | static Local<Symbol> ForApi(Isolate *isolate, Local<String> name); |
| 2476 | |
| 2477 | // Well-known symbols |
| 2478 | static Local<Symbol> GetIterator(Isolate* isolate); |
| 2479 | static Local<Symbol> GetUnscopables(Isolate* isolate); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2480 | static Local<Symbol> GetToStringTag(Isolate* isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2481 | static Local<Symbol> GetIsConcatSpreadable(Isolate* isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2482 | |
| 2483 | V8_INLINE static Symbol* Cast(v8::Value* obj); |
| 2484 | |
| 2485 | private: |
| 2486 | Symbol(); |
| 2487 | static void CheckCast(v8::Value* obj); |
| 2488 | }; |
| 2489 | |
| 2490 | |
| 2491 | /** |
| 2492 | * A private symbol |
| 2493 | * |
| 2494 | * This is an experimental feature. Use at your own risk. |
| 2495 | */ |
| 2496 | class V8_EXPORT Private : public Data { |
| 2497 | public: |
| 2498 | // Returns the print name string of the private symbol, or undefined if none. |
| 2499 | Local<Value> Name() const; |
| 2500 | |
| 2501 | // Create a private symbol. If name is not empty, it will be the description. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2502 | static Local<Private> New(Isolate* isolate, |
| 2503 | Local<String> name = Local<String>()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2504 | |
| 2505 | // Retrieve a global private symbol. If a symbol with this name has not |
| 2506 | // been retrieved in the same isolate before, it is created. |
| 2507 | // Note that private symbols created this way are never collected, so |
| 2508 | // they should only be used for statically fixed properties. |
| 2509 | // Also, there is only one global name space for the names used as keys. |
| 2510 | // To minimize the potential for clashes, use qualified names as keys, |
| 2511 | // e.g., "Class#property". |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2512 | static Local<Private> ForApi(Isolate* isolate, Local<String> name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2513 | |
| 2514 | private: |
| 2515 | Private(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2516 | }; |
| 2517 | |
| 2518 | |
| 2519 | /** |
| 2520 | * A JavaScript number value (ECMA-262, 4.3.20) |
| 2521 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2522 | class V8_EXPORT Number : public Primitive { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2523 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2524 | double Value() const; |
| 2525 | static Local<Number> New(Isolate* isolate, double value); |
| 2526 | V8_INLINE static Number* Cast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2527 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2528 | Number(); |
| 2529 | static void CheckCast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2530 | }; |
| 2531 | |
| 2532 | |
| 2533 | /** |
| 2534 | * A JavaScript value representing a signed integer. |
| 2535 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2536 | class V8_EXPORT Integer : public Number { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2537 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2538 | static Local<Integer> New(Isolate* isolate, int32_t value); |
| 2539 | static Local<Integer> NewFromUnsigned(Isolate* isolate, uint32_t value); |
| 2540 | int64_t Value() const; |
| 2541 | V8_INLINE static Integer* Cast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2542 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2543 | Integer(); |
| 2544 | static void CheckCast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2545 | }; |
| 2546 | |
| 2547 | |
| 2548 | /** |
| 2549 | * A JavaScript value representing a 32-bit signed integer. |
| 2550 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2551 | class V8_EXPORT Int32 : public Integer { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2552 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2553 | int32_t Value() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2554 | V8_INLINE static Int32* Cast(v8::Value* obj); |
| 2555 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2556 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2557 | Int32(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2558 | static void CheckCast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2559 | }; |
| 2560 | |
| 2561 | |
| 2562 | /** |
| 2563 | * A JavaScript value representing a 32-bit unsigned integer. |
| 2564 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2565 | class V8_EXPORT Uint32 : public Integer { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2566 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2567 | uint32_t Value() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2568 | V8_INLINE static Uint32* Cast(v8::Value* obj); |
| 2569 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2570 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2571 | Uint32(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2572 | static void CheckCast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2573 | }; |
| 2574 | |
| 2575 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2576 | enum PropertyAttribute { |
| 2577 | None = 0, |
| 2578 | ReadOnly = 1 << 0, |
| 2579 | DontEnum = 1 << 1, |
| 2580 | DontDelete = 1 << 2 |
| 2581 | }; |
| 2582 | |
| 2583 | /** |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2584 | * Accessor[Getter|Setter] are used as callback functions when |
| 2585 | * setting|getting a particular property. See Object and ObjectTemplate's |
| 2586 | * method SetAccessor. |
| 2587 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2588 | typedef void (*AccessorGetterCallback)( |
| 2589 | Local<String> property, |
| 2590 | const PropertyCallbackInfo<Value>& info); |
| 2591 | typedef void (*AccessorNameGetterCallback)( |
| 2592 | Local<Name> property, |
| 2593 | const PropertyCallbackInfo<Value>& info); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2594 | |
| 2595 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2596 | typedef void (*AccessorSetterCallback)( |
| 2597 | Local<String> property, |
| 2598 | Local<Value> value, |
| 2599 | const PropertyCallbackInfo<void>& info); |
| 2600 | typedef void (*AccessorNameSetterCallback)( |
| 2601 | Local<Name> property, |
| 2602 | Local<Value> value, |
| 2603 | const PropertyCallbackInfo<void>& info); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2604 | |
| 2605 | |
| 2606 | /** |
| 2607 | * Access control specifications. |
| 2608 | * |
| 2609 | * Some accessors should be accessible across contexts. These |
| 2610 | * accessors have an explicit access control parameter which specifies |
| 2611 | * the kind of cross-context access that should be allowed. |
| 2612 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2613 | * TODO(dcarney): Remove PROHIBITS_OVERWRITING as it is now unused. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2614 | */ |
| 2615 | enum AccessControl { |
| 2616 | DEFAULT = 0, |
| 2617 | ALL_CAN_READ = 1, |
| 2618 | ALL_CAN_WRITE = 1 << 1, |
| 2619 | PROHIBITS_OVERWRITING = 1 << 2 |
| 2620 | }; |
| 2621 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2622 | /** |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2623 | * Property filter bits. They can be or'ed to build a composite filter. |
| 2624 | */ |
| 2625 | enum PropertyFilter { |
| 2626 | ALL_PROPERTIES = 0, |
| 2627 | ONLY_WRITABLE = 1, |
| 2628 | ONLY_ENUMERABLE = 2, |
| 2629 | ONLY_CONFIGURABLE = 4, |
| 2630 | SKIP_STRINGS = 8, |
| 2631 | SKIP_SYMBOLS = 16 |
| 2632 | }; |
| 2633 | |
| 2634 | /** |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2635 | * Keys/Properties filter enums: |
| 2636 | * |
| 2637 | * KeyCollectionMode limits the range of collected properties. kOwnOnly limits |
| 2638 | * the collected properties to the given Object only. kIncludesPrototypes will |
| 2639 | * include all keys of the objects's prototype chain as well. |
| 2640 | */ |
| 2641 | enum class KeyCollectionMode { kOwnOnly, kIncludePrototypes }; |
| 2642 | |
| 2643 | /** |
| 2644 | * kIncludesIndices allows for integer indices to be collected, while |
| 2645 | * kSkipIndices will exclude integer indicies from being collected. |
| 2646 | */ |
| 2647 | enum class IndexFilter { kIncludeIndices, kSkipIndices }; |
| 2648 | |
| 2649 | /** |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2650 | * Integrity level for objects. |
| 2651 | */ |
| 2652 | enum class IntegrityLevel { kFrozen, kSealed }; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2653 | |
| 2654 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2655 | * A JavaScript object (ECMA-262, 4.3.3) |
| 2656 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2657 | class V8_EXPORT Object : public Value { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2658 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2659 | V8_DEPRECATE_SOON("Use maybe version", |
| 2660 | bool Set(Local<Value> key, Local<Value> value)); |
| 2661 | V8_WARN_UNUSED_RESULT Maybe<bool> Set(Local<Context> context, |
| 2662 | Local<Value> key, Local<Value> value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2663 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2664 | V8_DEPRECATE_SOON("Use maybe version", |
| 2665 | bool Set(uint32_t index, Local<Value> value)); |
| 2666 | V8_WARN_UNUSED_RESULT Maybe<bool> Set(Local<Context> context, uint32_t index, |
| 2667 | Local<Value> value); |
| 2668 | |
| 2669 | // Implements CreateDataProperty (ECMA-262, 7.3.4). |
| 2670 | // |
| 2671 | // Defines a configurable, writable, enumerable property with the given value |
| 2672 | // on the object unless the property already exists and is not configurable |
| 2673 | // or the object is not extensible. |
| 2674 | // |
| 2675 | // Returns true on success. |
| 2676 | V8_WARN_UNUSED_RESULT Maybe<bool> CreateDataProperty(Local<Context> context, |
| 2677 | Local<Name> key, |
| 2678 | Local<Value> value); |
| 2679 | V8_WARN_UNUSED_RESULT Maybe<bool> CreateDataProperty(Local<Context> context, |
| 2680 | uint32_t index, |
| 2681 | Local<Value> value); |
| 2682 | |
| 2683 | // Implements DefineOwnProperty. |
| 2684 | // |
| 2685 | // In general, CreateDataProperty will be faster, however, does not allow |
| 2686 | // for specifying attributes. |
| 2687 | // |
| 2688 | // Returns true on success. |
| 2689 | V8_WARN_UNUSED_RESULT Maybe<bool> DefineOwnProperty( |
| 2690 | Local<Context> context, Local<Name> key, Local<Value> value, |
| 2691 | PropertyAttribute attributes = None); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2692 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2693 | // Sets an own property on this object bypassing interceptors and |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2694 | // overriding accessors or read-only properties. |
| 2695 | // |
| 2696 | // Note that if the object has an interceptor the property will be set |
| 2697 | // locally, but since the interceptor takes precedence the local property |
| 2698 | // will only be returned if the interceptor doesn't return a value. |
| 2699 | // |
| 2700 | // Note also that this only works for named properties. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2701 | V8_DEPRECATED("Use CreateDataProperty / DefineOwnProperty", |
| 2702 | bool ForceSet(Local<Value> key, Local<Value> value, |
| 2703 | PropertyAttribute attribs = None)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2704 | V8_DEPRECATE_SOON("Use CreateDataProperty / DefineOwnProperty", |
| 2705 | Maybe<bool> ForceSet(Local<Context> context, |
| 2706 | Local<Value> key, Local<Value> value, |
| 2707 | PropertyAttribute attribs = None)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2708 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2709 | V8_DEPRECATE_SOON("Use maybe version", Local<Value> Get(Local<Value> key)); |
| 2710 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> Get(Local<Context> context, |
| 2711 | Local<Value> key); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2712 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2713 | V8_DEPRECATE_SOON("Use maybe version", Local<Value> Get(uint32_t index)); |
| 2714 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> Get(Local<Context> context, |
| 2715 | uint32_t index); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2716 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2717 | /** |
| 2718 | * Gets the property attributes of a property which can be None or |
| 2719 | * any combination of ReadOnly, DontEnum and DontDelete. Returns |
| 2720 | * None when the property doesn't exist. |
| 2721 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2722 | V8_DEPRECATED("Use maybe version", |
| 2723 | PropertyAttribute GetPropertyAttributes(Local<Value> key)); |
| 2724 | V8_WARN_UNUSED_RESULT Maybe<PropertyAttribute> GetPropertyAttributes( |
| 2725 | Local<Context> context, Local<Value> key); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2726 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2727 | /** |
| 2728 | * Returns Object.getOwnPropertyDescriptor as per ES5 section 15.2.3.3. |
| 2729 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2730 | V8_DEPRECATED("Use maybe version", |
| 2731 | Local<Value> GetOwnPropertyDescriptor(Local<String> key)); |
| 2732 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> GetOwnPropertyDescriptor( |
| 2733 | Local<Context> context, Local<String> key); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2734 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2735 | V8_DEPRECATE_SOON("Use maybe version", bool Has(Local<Value> key)); |
| 2736 | V8_WARN_UNUSED_RESULT Maybe<bool> Has(Local<Context> context, |
| 2737 | Local<Value> key); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2738 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2739 | V8_DEPRECATE_SOON("Use maybe version", bool Delete(Local<Value> key)); |
| 2740 | // TODO(dcarney): mark V8_WARN_UNUSED_RESULT |
| 2741 | Maybe<bool> Delete(Local<Context> context, Local<Value> key); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2742 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2743 | V8_DEPRECATED("Use maybe version", bool Has(uint32_t index)); |
| 2744 | V8_WARN_UNUSED_RESULT Maybe<bool> Has(Local<Context> context, uint32_t index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2745 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2746 | V8_DEPRECATED("Use maybe version", bool Delete(uint32_t index)); |
| 2747 | // TODO(dcarney): mark V8_WARN_UNUSED_RESULT |
| 2748 | Maybe<bool> Delete(Local<Context> context, uint32_t index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2749 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2750 | V8_DEPRECATED("Use maybe version", |
| 2751 | bool SetAccessor(Local<String> name, |
| 2752 | AccessorGetterCallback getter, |
| 2753 | AccessorSetterCallback setter = 0, |
| 2754 | Local<Value> data = Local<Value>(), |
| 2755 | AccessControl settings = DEFAULT, |
| 2756 | PropertyAttribute attribute = None)); |
| 2757 | V8_DEPRECATED("Use maybe version", |
| 2758 | bool SetAccessor(Local<Name> name, |
| 2759 | AccessorNameGetterCallback getter, |
| 2760 | AccessorNameSetterCallback setter = 0, |
| 2761 | Local<Value> data = Local<Value>(), |
| 2762 | AccessControl settings = DEFAULT, |
| 2763 | PropertyAttribute attribute = None)); |
| 2764 | // TODO(dcarney): mark V8_WARN_UNUSED_RESULT |
| 2765 | Maybe<bool> SetAccessor(Local<Context> context, Local<Name> name, |
| 2766 | AccessorNameGetterCallback getter, |
| 2767 | AccessorNameSetterCallback setter = 0, |
| 2768 | MaybeLocal<Value> data = MaybeLocal<Value>(), |
| 2769 | AccessControl settings = DEFAULT, |
| 2770 | PropertyAttribute attribute = None); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2771 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2772 | void SetAccessorProperty(Local<Name> name, Local<Function> getter, |
| 2773 | Local<Function> setter = Local<Function>(), |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2774 | PropertyAttribute attribute = None, |
| 2775 | AccessControl settings = DEFAULT); |
| 2776 | |
| 2777 | /** |
| 2778 | * Functionality for private properties. |
| 2779 | * This is an experimental feature, use at your own risk. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2780 | * Note: Private properties are not inherited. Do not rely on this, since it |
| 2781 | * may change. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2782 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2783 | Maybe<bool> HasPrivate(Local<Context> context, Local<Private> key); |
| 2784 | Maybe<bool> SetPrivate(Local<Context> context, Local<Private> key, |
| 2785 | Local<Value> value); |
| 2786 | Maybe<bool> DeletePrivate(Local<Context> context, Local<Private> key); |
| 2787 | MaybeLocal<Value> GetPrivate(Local<Context> context, Local<Private> key); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2788 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2789 | /** |
| 2790 | * Returns an array containing the names of the enumerable properties |
| 2791 | * of this object, including properties from prototype objects. The |
| 2792 | * array returned by this method contains the same values as would |
| 2793 | * be enumerated by a for-in statement over this object. |
| 2794 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2795 | V8_DEPRECATE_SOON("Use maybe version", Local<Array> GetPropertyNames()); |
| 2796 | V8_WARN_UNUSED_RESULT MaybeLocal<Array> GetPropertyNames( |
| 2797 | Local<Context> context); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2798 | V8_WARN_UNUSED_RESULT MaybeLocal<Array> GetPropertyNames( |
| 2799 | Local<Context> context, KeyCollectionMode mode, |
| 2800 | PropertyFilter property_filter, IndexFilter index_filter); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2801 | |
| 2802 | /** |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2803 | * This function has the same functionality as GetPropertyNames but |
| 2804 | * the returned array doesn't contain the names of properties from |
| 2805 | * prototype objects. |
| 2806 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2807 | V8_DEPRECATE_SOON("Use maybe version", Local<Array> GetOwnPropertyNames()); |
| 2808 | V8_WARN_UNUSED_RESULT MaybeLocal<Array> GetOwnPropertyNames( |
| 2809 | Local<Context> context); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2810 | |
| 2811 | /** |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2812 | * Returns an array containing the names of the filtered properties |
| 2813 | * of this object, including properties from prototype objects. The |
| 2814 | * array returned by this method contains the same values as would |
| 2815 | * be enumerated by a for-in statement over this object. |
| 2816 | */ |
| 2817 | V8_WARN_UNUSED_RESULT MaybeLocal<Array> GetOwnPropertyNames( |
| 2818 | Local<Context> context, PropertyFilter filter); |
| 2819 | |
| 2820 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2821 | * Get the prototype object. This does not skip objects marked to |
| 2822 | * be skipped by __proto__ and it does not consult the security |
| 2823 | * handler. |
| 2824 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2825 | Local<Value> GetPrototype(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2826 | |
| 2827 | /** |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2828 | * Set the prototype object. This does not skip objects marked to |
| 2829 | * be skipped by __proto__ and it does not consult the security |
| 2830 | * handler. |
| 2831 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2832 | V8_DEPRECATED("Use maybe version", bool SetPrototype(Local<Value> prototype)); |
| 2833 | V8_WARN_UNUSED_RESULT Maybe<bool> SetPrototype(Local<Context> context, |
| 2834 | Local<Value> prototype); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2835 | |
| 2836 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2837 | * Finds an instance of the given function template in the prototype |
| 2838 | * chain. |
| 2839 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2840 | Local<Object> FindInstanceInPrototypeChain(Local<FunctionTemplate> tmpl); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2841 | |
| 2842 | /** |
| 2843 | * Call builtin Object.prototype.toString on this object. |
| 2844 | * This is different from Value::ToString() that may call |
| 2845 | * user-defined toString function. This one does not. |
| 2846 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2847 | V8_DEPRECATED("Use maybe version", Local<String> ObjectProtoToString()); |
| 2848 | V8_WARN_UNUSED_RESULT MaybeLocal<String> ObjectProtoToString( |
| 2849 | Local<Context> context); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2850 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2851 | /** |
| 2852 | * Returns the name of the function invoked as a constructor for this object. |
| 2853 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2854 | Local<String> GetConstructorName(); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2855 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2856 | /** |
| 2857 | * Sets the integrity level of the object. |
| 2858 | */ |
| 2859 | Maybe<bool> SetIntegrityLevel(Local<Context> context, IntegrityLevel level); |
| 2860 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2861 | /** Gets the number of internal fields for this Object. */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2862 | int InternalFieldCount(); |
| 2863 | |
| 2864 | /** Same as above, but works for Persistents */ |
| 2865 | V8_INLINE static int InternalFieldCount( |
| 2866 | const PersistentBase<Object>& object) { |
| 2867 | return object.val_->InternalFieldCount(); |
| 2868 | } |
| 2869 | |
| 2870 | /** Gets the value from an internal field. */ |
| 2871 | V8_INLINE Local<Value> GetInternalField(int index); |
| 2872 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2873 | /** Sets the value in an internal field. */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2874 | void SetInternalField(int index, Local<Value> value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2875 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2876 | /** |
| 2877 | * Gets a 2-byte-aligned native pointer from an internal field. This field |
| 2878 | * must have been set by SetAlignedPointerInInternalField, everything else |
| 2879 | * leads to undefined behavior. |
| 2880 | */ |
| 2881 | V8_INLINE void* GetAlignedPointerFromInternalField(int index); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2882 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2883 | /** Same as above, but works for Persistents */ |
| 2884 | V8_INLINE static void* GetAlignedPointerFromInternalField( |
| 2885 | const PersistentBase<Object>& object, int index) { |
| 2886 | return object.val_->GetAlignedPointerFromInternalField(index); |
| 2887 | } |
| 2888 | |
| 2889 | /** |
| 2890 | * Sets a 2-byte-aligned native pointer in an internal field. To retrieve such |
| 2891 | * a field, GetAlignedPointerFromInternalField must be used, everything else |
| 2892 | * leads to undefined behavior. |
| 2893 | */ |
| 2894 | void SetAlignedPointerInInternalField(int index, void* value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2895 | |
| 2896 | // Testers for local properties. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2897 | V8_DEPRECATED("Use maybe version", bool HasOwnProperty(Local<String> key)); |
| 2898 | V8_WARN_UNUSED_RESULT Maybe<bool> HasOwnProperty(Local<Context> context, |
| 2899 | Local<Name> key); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2900 | V8_WARN_UNUSED_RESULT Maybe<bool> HasOwnProperty(Local<Context> context, |
| 2901 | uint32_t index); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2902 | V8_DEPRECATE_SOON("Use maybe version", |
| 2903 | bool HasRealNamedProperty(Local<String> key)); |
| 2904 | V8_WARN_UNUSED_RESULT Maybe<bool> HasRealNamedProperty(Local<Context> context, |
| 2905 | Local<Name> key); |
| 2906 | V8_DEPRECATE_SOON("Use maybe version", |
| 2907 | bool HasRealIndexedProperty(uint32_t index)); |
| 2908 | V8_WARN_UNUSED_RESULT Maybe<bool> HasRealIndexedProperty( |
| 2909 | Local<Context> context, uint32_t index); |
| 2910 | V8_DEPRECATE_SOON("Use maybe version", |
| 2911 | bool HasRealNamedCallbackProperty(Local<String> key)); |
| 2912 | V8_WARN_UNUSED_RESULT Maybe<bool> HasRealNamedCallbackProperty( |
| 2913 | Local<Context> context, Local<Name> key); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2914 | |
| 2915 | /** |
| 2916 | * If result.IsEmpty() no real property was located in the prototype chain. |
| 2917 | * This means interceptors in the prototype chain are not called. |
| 2918 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2919 | V8_DEPRECATED( |
| 2920 | "Use maybe version", |
| 2921 | Local<Value> GetRealNamedPropertyInPrototypeChain(Local<String> key)); |
| 2922 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> GetRealNamedPropertyInPrototypeChain( |
| 2923 | Local<Context> context, Local<Name> key); |
| 2924 | |
| 2925 | /** |
| 2926 | * Gets the property attributes of a real property in the prototype chain, |
| 2927 | * which can be None or any combination of ReadOnly, DontEnum and DontDelete. |
| 2928 | * Interceptors in the prototype chain are not called. |
| 2929 | */ |
| 2930 | V8_DEPRECATED( |
| 2931 | "Use maybe version", |
| 2932 | Maybe<PropertyAttribute> GetRealNamedPropertyAttributesInPrototypeChain( |
| 2933 | Local<String> key)); |
| 2934 | V8_WARN_UNUSED_RESULT Maybe<PropertyAttribute> |
| 2935 | GetRealNamedPropertyAttributesInPrototypeChain(Local<Context> context, |
| 2936 | Local<Name> key); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2937 | |
| 2938 | /** |
| 2939 | * If result.IsEmpty() no real property was located on the object or |
| 2940 | * in the prototype chain. |
| 2941 | * This means interceptors in the prototype chain are not called. |
| 2942 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2943 | V8_DEPRECATED("Use maybe version", |
| 2944 | Local<Value> GetRealNamedProperty(Local<String> key)); |
| 2945 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> GetRealNamedProperty( |
| 2946 | Local<Context> context, Local<Name> key); |
| 2947 | |
| 2948 | /** |
| 2949 | * Gets the property attributes of a real property which can be |
| 2950 | * None or any combination of ReadOnly, DontEnum and DontDelete. |
| 2951 | * Interceptors in the prototype chain are not called. |
| 2952 | */ |
| 2953 | V8_DEPRECATED("Use maybe version", |
| 2954 | Maybe<PropertyAttribute> GetRealNamedPropertyAttributes( |
| 2955 | Local<String> key)); |
| 2956 | V8_WARN_UNUSED_RESULT Maybe<PropertyAttribute> GetRealNamedPropertyAttributes( |
| 2957 | Local<Context> context, Local<Name> key); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2958 | |
| 2959 | /** Tests for a named lookup interceptor.*/ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2960 | bool HasNamedLookupInterceptor(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2961 | |
| 2962 | /** Tests for an index lookup interceptor.*/ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2963 | bool HasIndexedLookupInterceptor(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2964 | |
| 2965 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2966 | * Returns the identity hash for this object. The current implementation |
| 2967 | * uses a hidden property on the object to store the identity hash. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2968 | * |
| 2969 | * The return value will never be 0. Also, it is not guaranteed to be |
| 2970 | * unique. |
| 2971 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2972 | int GetIdentityHash(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2973 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2974 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2975 | * Clone this object with a fast but shallow copy. Values will point |
| 2976 | * to the same values as the original object. |
| 2977 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2978 | // TODO(dcarney): take an isolate and optionally bail out? |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2979 | Local<Object> Clone(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2980 | |
| 2981 | /** |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2982 | * Returns the context in which the object was created. |
| 2983 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2984 | Local<Context> CreationContext(); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2985 | |
| 2986 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2987 | * Checks whether a callback is set by the |
| 2988 | * ObjectTemplate::SetCallAsFunctionHandler method. |
| 2989 | * When an Object is callable this method returns true. |
| 2990 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2991 | bool IsCallable(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2992 | |
| 2993 | /** |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2994 | * True if this object is a constructor. |
| 2995 | */ |
| 2996 | bool IsConstructor(); |
| 2997 | |
| 2998 | /** |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 2999 | * Call an Object as a function if a callback is set by the |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3000 | * ObjectTemplate::SetCallAsFunctionHandler method. |
| 3001 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3002 | V8_DEPRECATED("Use maybe version", |
| 3003 | Local<Value> CallAsFunction(Local<Value> recv, int argc, |
| 3004 | Local<Value> argv[])); |
| 3005 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> CallAsFunction(Local<Context> context, |
| 3006 | Local<Value> recv, |
| 3007 | int argc, |
| 3008 | Local<Value> argv[]); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3009 | |
| 3010 | /** |
| 3011 | * Call an Object as a constructor if a callback is set by the |
| 3012 | * ObjectTemplate::SetCallAsFunctionHandler method. |
| 3013 | * Note: This method behaves like the Function::NewInstance method. |
| 3014 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3015 | V8_DEPRECATED("Use maybe version", |
| 3016 | Local<Value> CallAsConstructor(int argc, Local<Value> argv[])); |
| 3017 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> CallAsConstructor( |
| 3018 | Local<Context> context, int argc, Local<Value> argv[]); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3019 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3020 | /** |
| 3021 | * Return the isolate to which the Object belongs to. |
| 3022 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3023 | V8_DEPRECATE_SOON("Keep track of isolate correctly", Isolate* GetIsolate()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3024 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3025 | static Local<Object> New(Isolate* isolate); |
| 3026 | |
| 3027 | V8_INLINE static Object* Cast(Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3028 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3029 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3030 | Object(); |
| 3031 | static void CheckCast(Value* obj); |
| 3032 | Local<Value> SlowGetInternalField(int index); |
| 3033 | void* SlowGetAlignedPointerFromInternalField(int index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3034 | }; |
| 3035 | |
| 3036 | |
| 3037 | /** |
| 3038 | * An instance of the built-in array constructor (ECMA-262, 15.4.2). |
| 3039 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3040 | class V8_EXPORT Array : public Object { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3041 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3042 | uint32_t Length() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3043 | |
| 3044 | /** |
| 3045 | * Clones an element at index |index|. Returns an empty |
| 3046 | * handle if cloning fails (for any reason). |
| 3047 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3048 | V8_DEPRECATED("Cloning is not supported.", |
| 3049 | Local<Object> CloneElementAt(uint32_t index)); |
| 3050 | V8_DEPRECATED("Cloning is not supported.", |
| 3051 | MaybeLocal<Object> CloneElementAt(Local<Context> context, |
| 3052 | uint32_t index)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3053 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3054 | /** |
| 3055 | * Creates a JavaScript array with the given length. If the length |
| 3056 | * is negative the returned array will have length 0. |
| 3057 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3058 | static Local<Array> New(Isolate* isolate, int length = 0); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3059 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3060 | V8_INLINE static Array* Cast(Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3061 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3062 | Array(); |
| 3063 | static void CheckCast(Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3064 | }; |
| 3065 | |
| 3066 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3067 | /** |
| 3068 | * An instance of the built-in Map constructor (ECMA-262, 6th Edition, 23.1.1). |
| 3069 | */ |
| 3070 | class V8_EXPORT Map : public Object { |
| 3071 | public: |
| 3072 | size_t Size() const; |
| 3073 | void Clear(); |
| 3074 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> Get(Local<Context> context, |
| 3075 | Local<Value> key); |
| 3076 | V8_WARN_UNUSED_RESULT MaybeLocal<Map> Set(Local<Context> context, |
| 3077 | Local<Value> key, |
| 3078 | Local<Value> value); |
| 3079 | V8_WARN_UNUSED_RESULT Maybe<bool> Has(Local<Context> context, |
| 3080 | Local<Value> key); |
| 3081 | V8_WARN_UNUSED_RESULT Maybe<bool> Delete(Local<Context> context, |
| 3082 | Local<Value> key); |
| 3083 | |
| 3084 | /** |
| 3085 | * Returns an array of length Size() * 2, where index N is the Nth key and |
| 3086 | * index N + 1 is the Nth value. |
| 3087 | */ |
| 3088 | Local<Array> AsArray() const; |
| 3089 | |
| 3090 | /** |
| 3091 | * Creates a new empty Map. |
| 3092 | */ |
| 3093 | static Local<Map> New(Isolate* isolate); |
| 3094 | |
| 3095 | V8_INLINE static Map* Cast(Value* obj); |
| 3096 | |
| 3097 | private: |
| 3098 | Map(); |
| 3099 | static void CheckCast(Value* obj); |
| 3100 | }; |
| 3101 | |
| 3102 | |
| 3103 | /** |
| 3104 | * An instance of the built-in Set constructor (ECMA-262, 6th Edition, 23.2.1). |
| 3105 | */ |
| 3106 | class V8_EXPORT Set : public Object { |
| 3107 | public: |
| 3108 | size_t Size() const; |
| 3109 | void Clear(); |
| 3110 | V8_WARN_UNUSED_RESULT MaybeLocal<Set> Add(Local<Context> context, |
| 3111 | Local<Value> key); |
| 3112 | V8_WARN_UNUSED_RESULT Maybe<bool> Has(Local<Context> context, |
| 3113 | Local<Value> key); |
| 3114 | V8_WARN_UNUSED_RESULT Maybe<bool> Delete(Local<Context> context, |
| 3115 | Local<Value> key); |
| 3116 | |
| 3117 | /** |
| 3118 | * Returns an array of the keys in this Set. |
| 3119 | */ |
| 3120 | Local<Array> AsArray() const; |
| 3121 | |
| 3122 | /** |
| 3123 | * Creates a new empty Set. |
| 3124 | */ |
| 3125 | static Local<Set> New(Isolate* isolate); |
| 3126 | |
| 3127 | V8_INLINE static Set* Cast(Value* obj); |
| 3128 | |
| 3129 | private: |
| 3130 | Set(); |
| 3131 | static void CheckCast(Value* obj); |
| 3132 | }; |
| 3133 | |
| 3134 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3135 | template<typename T> |
| 3136 | class ReturnValue { |
| 3137 | public: |
| 3138 | template <class S> V8_INLINE ReturnValue(const ReturnValue<S>& that) |
| 3139 | : value_(that.value_) { |
| 3140 | TYPE_CHECK(T, S); |
| 3141 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3142 | // Local setters |
| 3143 | template <typename S> |
| 3144 | V8_INLINE V8_DEPRECATE_SOON("Use Global<> instead", |
| 3145 | void Set(const Persistent<S>& handle)); |
| 3146 | template <typename S> |
| 3147 | V8_INLINE void Set(const Global<S>& handle); |
| 3148 | template <typename S> |
| 3149 | V8_INLINE void Set(const Local<S> handle); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3150 | // Fast primitive setters |
| 3151 | V8_INLINE void Set(bool value); |
| 3152 | V8_INLINE void Set(double i); |
| 3153 | V8_INLINE void Set(int32_t i); |
| 3154 | V8_INLINE void Set(uint32_t i); |
| 3155 | // Fast JS primitive setters |
| 3156 | V8_INLINE void SetNull(); |
| 3157 | V8_INLINE void SetUndefined(); |
| 3158 | V8_INLINE void SetEmptyString(); |
| 3159 | // Convenience getter for Isolate |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3160 | V8_INLINE Isolate* GetIsolate() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3161 | |
| 3162 | // Pointer setter: Uncompilable to prevent inadvertent misuse. |
| 3163 | template <typename S> |
| 3164 | V8_INLINE void Set(S* whatever); |
| 3165 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3166 | // Getter. Creates a new Local<> so it comes with a certain performance |
| 3167 | // hit. If the ReturnValue was not yet set, this will return the undefined |
| 3168 | // value. |
| 3169 | V8_INLINE Local<Value> Get() const; |
| 3170 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3171 | private: |
| 3172 | template<class F> friend class ReturnValue; |
| 3173 | template<class F> friend class FunctionCallbackInfo; |
| 3174 | template<class F> friend class PropertyCallbackInfo; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3175 | template <class F, class G, class H> |
| 3176 | friend class PersistentValueMapBase; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3177 | V8_INLINE void SetInternal(internal::Object* value) { *value_ = value; } |
| 3178 | V8_INLINE internal::Object* GetDefaultValue(); |
| 3179 | V8_INLINE explicit ReturnValue(internal::Object** slot); |
| 3180 | internal::Object** value_; |
| 3181 | }; |
| 3182 | |
| 3183 | |
| 3184 | /** |
| 3185 | * The argument information given to function call callbacks. This |
| 3186 | * class provides access to information about the context of the call, |
| 3187 | * including the receiver, the number and values of arguments, and |
| 3188 | * the holder of the function. |
| 3189 | */ |
| 3190 | template<typename T> |
| 3191 | class FunctionCallbackInfo { |
| 3192 | public: |
| 3193 | V8_INLINE int Length() const; |
| 3194 | V8_INLINE Local<Value> operator[](int i) const; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3195 | V8_INLINE V8_DEPRECATED("Use Data() to explicitly pass Callee instead", |
| 3196 | Local<Function> Callee() const); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3197 | V8_INLINE Local<Object> This() const; |
| 3198 | V8_INLINE Local<Object> Holder() const; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3199 | V8_INLINE Local<Value> NewTarget() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3200 | V8_INLINE bool IsConstructCall() const; |
| 3201 | V8_INLINE Local<Value> Data() const; |
| 3202 | V8_INLINE Isolate* GetIsolate() const; |
| 3203 | V8_INLINE ReturnValue<T> GetReturnValue() const; |
| 3204 | // This shouldn't be public, but the arm compiler needs it. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3205 | static const int kArgsLength = 8; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3206 | |
| 3207 | protected: |
| 3208 | friend class internal::FunctionCallbackArguments; |
| 3209 | friend class internal::CustomArguments<FunctionCallbackInfo>; |
| 3210 | static const int kHolderIndex = 0; |
| 3211 | static const int kIsolateIndex = 1; |
| 3212 | static const int kReturnValueDefaultValueIndex = 2; |
| 3213 | static const int kReturnValueIndex = 3; |
| 3214 | static const int kDataIndex = 4; |
| 3215 | static const int kCalleeIndex = 5; |
| 3216 | static const int kContextSaveIndex = 6; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3217 | static const int kNewTargetIndex = 7; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3218 | |
| 3219 | V8_INLINE FunctionCallbackInfo(internal::Object** implicit_args, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3220 | internal::Object** values, int length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3221 | internal::Object** implicit_args_; |
| 3222 | internal::Object** values_; |
| 3223 | int length_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3224 | }; |
| 3225 | |
| 3226 | |
| 3227 | /** |
| 3228 | * The information passed to a property callback about the context |
| 3229 | * of the property access. |
| 3230 | */ |
| 3231 | template<typename T> |
| 3232 | class PropertyCallbackInfo { |
| 3233 | public: |
| 3234 | V8_INLINE Isolate* GetIsolate() const; |
| 3235 | V8_INLINE Local<Value> Data() const; |
| 3236 | V8_INLINE Local<Object> This() const; |
| 3237 | V8_INLINE Local<Object> Holder() const; |
| 3238 | V8_INLINE ReturnValue<T> GetReturnValue() const; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3239 | V8_INLINE bool ShouldThrowOnError() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3240 | // This shouldn't be public, but the arm compiler needs it. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3241 | static const int kArgsLength = 7; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3242 | |
| 3243 | protected: |
| 3244 | friend class MacroAssembler; |
| 3245 | friend class internal::PropertyCallbackArguments; |
| 3246 | friend class internal::CustomArguments<PropertyCallbackInfo>; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3247 | static const int kShouldThrowOnErrorIndex = 0; |
| 3248 | static const int kHolderIndex = 1; |
| 3249 | static const int kIsolateIndex = 2; |
| 3250 | static const int kReturnValueDefaultValueIndex = 3; |
| 3251 | static const int kReturnValueIndex = 4; |
| 3252 | static const int kDataIndex = 5; |
| 3253 | static const int kThisIndex = 6; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3254 | |
| 3255 | V8_INLINE PropertyCallbackInfo(internal::Object** args) : args_(args) {} |
| 3256 | internal::Object** args_; |
| 3257 | }; |
| 3258 | |
| 3259 | |
| 3260 | typedef void (*FunctionCallback)(const FunctionCallbackInfo<Value>& info); |
| 3261 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3262 | enum class ConstructorBehavior { kThrow, kAllow }; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3263 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3264 | /** |
| 3265 | * A JavaScript function object (ECMA-262, 15.3). |
| 3266 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3267 | class V8_EXPORT Function : public Object { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3268 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3269 | /** |
| 3270 | * Create a function in the current execution context |
| 3271 | * for a given FunctionCallback. |
| 3272 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3273 | static MaybeLocal<Function> New( |
| 3274 | Local<Context> context, FunctionCallback callback, |
| 3275 | Local<Value> data = Local<Value>(), int length = 0, |
| 3276 | ConstructorBehavior behavior = ConstructorBehavior::kAllow); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3277 | static V8_DEPRECATE_SOON( |
| 3278 | "Use maybe version", |
| 3279 | Local<Function> New(Isolate* isolate, FunctionCallback callback, |
| 3280 | Local<Value> data = Local<Value>(), int length = 0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3281 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3282 | V8_DEPRECATED("Use maybe version", |
| 3283 | Local<Object> NewInstance(int argc, Local<Value> argv[]) const); |
| 3284 | V8_WARN_UNUSED_RESULT MaybeLocal<Object> NewInstance( |
| 3285 | Local<Context> context, int argc, Local<Value> argv[]) const; |
| 3286 | |
| 3287 | V8_DEPRECATED("Use maybe version", Local<Object> NewInstance() const); |
| 3288 | V8_WARN_UNUSED_RESULT MaybeLocal<Object> NewInstance( |
| 3289 | Local<Context> context) const { |
| 3290 | return NewInstance(context, 0, nullptr); |
| 3291 | } |
| 3292 | |
| 3293 | V8_DEPRECATE_SOON("Use maybe version", |
| 3294 | Local<Value> Call(Local<Value> recv, int argc, |
| 3295 | Local<Value> argv[])); |
| 3296 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> Call(Local<Context> context, |
| 3297 | Local<Value> recv, int argc, |
| 3298 | Local<Value> argv[]); |
| 3299 | |
| 3300 | void SetName(Local<String> name); |
| 3301 | Local<Value> GetName() const; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 3302 | |
| 3303 | /** |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3304 | * Name inferred from variable or property assignment of this function. |
| 3305 | * Used to facilitate debugging and profiling of JavaScript code written |
| 3306 | * in an OO style, where many functions are anonymous but are assigned |
| 3307 | * to object properties. |
| 3308 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3309 | Local<Value> GetInferredName() const; |
| 3310 | |
| 3311 | /** |
| 3312 | * displayName if it is set, otherwise name if it is configured, otherwise |
| 3313 | * function name, otherwise inferred name. |
| 3314 | */ |
| 3315 | Local<Value> GetDebugName() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3316 | |
| 3317 | /** |
| 3318 | * User-defined name assigned to the "displayName" property of this function. |
| 3319 | * Used to facilitate debugging and profiling of JavaScript code. |
| 3320 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3321 | Local<Value> GetDisplayName() const; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3322 | |
| 3323 | /** |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 3324 | * Returns zero based line number of function body and |
| 3325 | * kLineOffsetNotFound if no information available. |
| 3326 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3327 | int GetScriptLineNumber() const; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3328 | /** |
| 3329 | * Returns zero based column number of function body and |
| 3330 | * kLineOffsetNotFound if no information available. |
| 3331 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3332 | int GetScriptColumnNumber() const; |
| 3333 | |
| 3334 | /** |
| 3335 | * Tells whether this function is builtin. |
| 3336 | */ |
| 3337 | bool IsBuiltin() const; |
| 3338 | |
| 3339 | /** |
| 3340 | * Returns scriptId. |
| 3341 | */ |
| 3342 | int ScriptId() const; |
| 3343 | |
| 3344 | /** |
| 3345 | * Returns the original function if this function is bound, else returns |
| 3346 | * v8::Undefined. |
| 3347 | */ |
| 3348 | Local<Value> GetBoundFunction() const; |
| 3349 | |
| 3350 | ScriptOrigin GetScriptOrigin() const; |
| 3351 | V8_INLINE static Function* Cast(Value* obj); |
| 3352 | static const int kLineOffsetNotFound; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3353 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3354 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3355 | Function(); |
| 3356 | static void CheckCast(Value* obj); |
| 3357 | }; |
| 3358 | |
| 3359 | |
| 3360 | /** |
| 3361 | * An instance of the built-in Promise constructor (ES6 draft). |
| 3362 | * This API is experimental. Only works with --harmony flag. |
| 3363 | */ |
| 3364 | class V8_EXPORT Promise : public Object { |
| 3365 | public: |
| 3366 | class V8_EXPORT Resolver : public Object { |
| 3367 | public: |
| 3368 | /** |
| 3369 | * Create a new resolver, along with an associated promise in pending state. |
| 3370 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3371 | static V8_DEPRECATE_SOON("Use maybe version", |
| 3372 | Local<Resolver> New(Isolate* isolate)); |
| 3373 | static V8_WARN_UNUSED_RESULT MaybeLocal<Resolver> New( |
| 3374 | Local<Context> context); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3375 | |
| 3376 | /** |
| 3377 | * Extract the associated promise. |
| 3378 | */ |
| 3379 | Local<Promise> GetPromise(); |
| 3380 | |
| 3381 | /** |
| 3382 | * Resolve/reject the associated promise with a given value. |
| 3383 | * Ignored if the promise is no longer pending. |
| 3384 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3385 | V8_DEPRECATE_SOON("Use maybe version", void Resolve(Local<Value> value)); |
| 3386 | // TODO(dcarney): mark V8_WARN_UNUSED_RESULT |
| 3387 | Maybe<bool> Resolve(Local<Context> context, Local<Value> value); |
| 3388 | |
| 3389 | V8_DEPRECATE_SOON("Use maybe version", void Reject(Local<Value> value)); |
| 3390 | // TODO(dcarney): mark V8_WARN_UNUSED_RESULT |
| 3391 | Maybe<bool> Reject(Local<Context> context, Local<Value> value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3392 | |
| 3393 | V8_INLINE static Resolver* Cast(Value* obj); |
| 3394 | |
| 3395 | private: |
| 3396 | Resolver(); |
| 3397 | static void CheckCast(Value* obj); |
| 3398 | }; |
| 3399 | |
| 3400 | /** |
| 3401 | * Register a resolution/rejection handler with a promise. |
| 3402 | * The handler is given the respective resolution/rejection value as |
| 3403 | * an argument. If the promise is already resolved/rejected, the handler is |
| 3404 | * invoked at the end of turn. |
| 3405 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3406 | V8_DEPRECATED("Use maybe version of Then", |
| 3407 | Local<Promise> Chain(Local<Function> handler)); |
| 3408 | V8_DEPRECATED("Use Then", |
| 3409 | V8_WARN_UNUSED_RESULT MaybeLocal<Promise> Chain( |
| 3410 | Local<Context> context, Local<Function> handler)); |
| 3411 | |
| 3412 | V8_DEPRECATED("Use maybe version", |
| 3413 | Local<Promise> Catch(Local<Function> handler)); |
| 3414 | V8_WARN_UNUSED_RESULT MaybeLocal<Promise> Catch(Local<Context> context, |
| 3415 | Local<Function> handler); |
| 3416 | |
| 3417 | V8_DEPRECATED("Use maybe version", |
| 3418 | Local<Promise> Then(Local<Function> handler)); |
| 3419 | V8_WARN_UNUSED_RESULT MaybeLocal<Promise> Then(Local<Context> context, |
| 3420 | Local<Function> handler); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3421 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3422 | /** |
| 3423 | * Returns true if the promise has at least one derived promise, and |
| 3424 | * therefore resolve/reject handlers (including default handler). |
| 3425 | */ |
| 3426 | bool HasHandler(); |
| 3427 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3428 | V8_INLINE static Promise* Cast(Value* obj); |
| 3429 | |
| 3430 | private: |
| 3431 | Promise(); |
| 3432 | static void CheckCast(Value* obj); |
| 3433 | }; |
| 3434 | |
| 3435 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3436 | /** |
| 3437 | * An instance of the built-in Proxy constructor (ECMA-262, 6th Edition, |
| 3438 | * 26.2.1). |
| 3439 | */ |
| 3440 | class V8_EXPORT Proxy : public Object { |
| 3441 | public: |
| 3442 | Local<Object> GetTarget(); |
| 3443 | Local<Value> GetHandler(); |
| 3444 | bool IsRevoked(); |
| 3445 | void Revoke(); |
| 3446 | |
| 3447 | /** |
| 3448 | * Creates a new empty Map. |
| 3449 | */ |
| 3450 | static MaybeLocal<Proxy> New(Local<Context> context, |
| 3451 | Local<Object> local_target, |
| 3452 | Local<Object> local_handler); |
| 3453 | |
| 3454 | V8_INLINE static Proxy* Cast(Value* obj); |
| 3455 | |
| 3456 | private: |
| 3457 | Proxy(); |
| 3458 | static void CheckCast(Value* obj); |
| 3459 | }; |
| 3460 | |
| 3461 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3462 | #ifndef V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT |
| 3463 | // The number of required internal fields can be defined by embedder. |
| 3464 | #define V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT 2 |
| 3465 | #endif |
| 3466 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3467 | |
| 3468 | enum class ArrayBufferCreationMode { kInternalized, kExternalized }; |
| 3469 | |
| 3470 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3471 | /** |
| 3472 | * An instance of the built-in ArrayBuffer constructor (ES6 draft 15.13.5). |
| 3473 | * This API is experimental and may change significantly. |
| 3474 | */ |
| 3475 | class V8_EXPORT ArrayBuffer : public Object { |
| 3476 | public: |
| 3477 | /** |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3478 | * A thread-safe allocator that V8 uses to allocate |ArrayBuffer|'s memory. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3479 | * The allocator is a global V8 setting. It has to be set via |
| 3480 | * Isolate::CreateParams. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3481 | * |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3482 | * Memory allocated through this allocator by V8 is accounted for as external |
| 3483 | * memory by V8. Note that V8 keeps track of the memory for all internalized |
| 3484 | * |ArrayBuffer|s. Responsibility for tracking external memory (using |
| 3485 | * Isolate::AdjustAmountOfExternalAllocatedMemory) is handed over to the |
| 3486 | * embedder upon externalization and taken over upon internalization (creating |
| 3487 | * an internalized buffer from an existing buffer). |
| 3488 | * |
| 3489 | * Note that it is unsafe to call back into V8 from any of the allocator |
| 3490 | * functions. |
| 3491 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3492 | * This API is experimental and may change significantly. |
| 3493 | */ |
| 3494 | class V8_EXPORT Allocator { // NOLINT |
| 3495 | public: |
| 3496 | virtual ~Allocator() {} |
| 3497 | |
| 3498 | /** |
| 3499 | * Allocate |length| bytes. Return NULL if allocation is not successful. |
| 3500 | * Memory should be initialized to zeroes. |
| 3501 | */ |
| 3502 | virtual void* Allocate(size_t length) = 0; |
| 3503 | |
| 3504 | /** |
| 3505 | * Allocate |length| bytes. Return NULL if allocation is not successful. |
| 3506 | * Memory does not have to be initialized. |
| 3507 | */ |
| 3508 | virtual void* AllocateUninitialized(size_t length) = 0; |
| 3509 | /** |
| 3510 | * Free the memory block of size |length|, pointed to by |data|. |
| 3511 | * That memory is guaranteed to be previously allocated by |Allocate|. |
| 3512 | */ |
| 3513 | virtual void Free(void* data, size_t length) = 0; |
| 3514 | }; |
| 3515 | |
| 3516 | /** |
| 3517 | * The contents of an |ArrayBuffer|. Externalization of |ArrayBuffer| |
| 3518 | * returns an instance of this class, populated, with a pointer to data |
| 3519 | * and byte length. |
| 3520 | * |
| 3521 | * The Data pointer of ArrayBuffer::Contents is always allocated with |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3522 | * Allocator::Allocate that is set via Isolate::CreateParams. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3523 | * |
| 3524 | * This API is experimental and may change significantly. |
| 3525 | */ |
| 3526 | class V8_EXPORT Contents { // NOLINT |
| 3527 | public: |
| 3528 | Contents() : data_(NULL), byte_length_(0) {} |
| 3529 | |
| 3530 | void* Data() const { return data_; } |
| 3531 | size_t ByteLength() const { return byte_length_; } |
| 3532 | |
| 3533 | private: |
| 3534 | void* data_; |
| 3535 | size_t byte_length_; |
| 3536 | |
| 3537 | friend class ArrayBuffer; |
| 3538 | }; |
| 3539 | |
| 3540 | |
| 3541 | /** |
| 3542 | * Data length in bytes. |
| 3543 | */ |
| 3544 | size_t ByteLength() const; |
| 3545 | |
| 3546 | /** |
| 3547 | * Create a new ArrayBuffer. Allocate |byte_length| bytes. |
| 3548 | * Allocated memory will be owned by a created ArrayBuffer and |
| 3549 | * will be deallocated when it is garbage-collected, |
| 3550 | * unless the object is externalized. |
| 3551 | */ |
| 3552 | static Local<ArrayBuffer> New(Isolate* isolate, size_t byte_length); |
| 3553 | |
| 3554 | /** |
| 3555 | * Create a new ArrayBuffer over an existing memory block. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3556 | * The created array buffer is by default immediately in externalized state. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3557 | * The memory block will not be reclaimed when a created ArrayBuffer |
| 3558 | * is garbage-collected. |
| 3559 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3560 | static Local<ArrayBuffer> New( |
| 3561 | Isolate* isolate, void* data, size_t byte_length, |
| 3562 | ArrayBufferCreationMode mode = ArrayBufferCreationMode::kExternalized); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3563 | |
| 3564 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3565 | * Returns true if ArrayBuffer is externalized, that is, does not |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3566 | * own its memory block. |
| 3567 | */ |
| 3568 | bool IsExternal() const; |
| 3569 | |
| 3570 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3571 | * Returns true if this ArrayBuffer may be neutered. |
| 3572 | */ |
| 3573 | bool IsNeuterable() const; |
| 3574 | |
| 3575 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3576 | * Neuters this ArrayBuffer and all its views (typed arrays). |
| 3577 | * Neutering sets the byte length of the buffer and all typed arrays to zero, |
| 3578 | * preventing JavaScript from ever accessing underlying backing store. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3579 | * ArrayBuffer should have been externalized and must be neuterable. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3580 | */ |
| 3581 | void Neuter(); |
| 3582 | |
| 3583 | /** |
| 3584 | * Make this ArrayBuffer external. The pointer to underlying memory block |
| 3585 | * and byte length are returned as |Contents| structure. After ArrayBuffer |
| 3586 | * had been etxrenalized, it does no longer owns the memory block. The caller |
| 3587 | * should take steps to free memory when it is no longer needed. |
| 3588 | * |
| 3589 | * The memory block is guaranteed to be allocated with |Allocator::Allocate| |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3590 | * that has been set via Isolate::CreateParams. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3591 | */ |
| 3592 | Contents Externalize(); |
| 3593 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3594 | /** |
| 3595 | * Get a pointer to the ArrayBuffer's underlying memory block without |
| 3596 | * externalizing it. If the ArrayBuffer is not externalized, this pointer |
| 3597 | * will become invalid as soon as the ArrayBuffer became garbage collected. |
| 3598 | * |
| 3599 | * The embedder should make sure to hold a strong reference to the |
| 3600 | * ArrayBuffer while accessing this pointer. |
| 3601 | * |
| 3602 | * The memory block is guaranteed to be allocated with |Allocator::Allocate|. |
| 3603 | */ |
| 3604 | Contents GetContents(); |
| 3605 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3606 | V8_INLINE static ArrayBuffer* Cast(Value* obj); |
| 3607 | |
| 3608 | static const int kInternalFieldCount = V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT; |
| 3609 | |
| 3610 | private: |
| 3611 | ArrayBuffer(); |
| 3612 | static void CheckCast(Value* obj); |
| 3613 | }; |
| 3614 | |
| 3615 | |
| 3616 | #ifndef V8_ARRAY_BUFFER_VIEW_INTERNAL_FIELD_COUNT |
| 3617 | // The number of required internal fields can be defined by embedder. |
| 3618 | #define V8_ARRAY_BUFFER_VIEW_INTERNAL_FIELD_COUNT 2 |
| 3619 | #endif |
| 3620 | |
| 3621 | |
| 3622 | /** |
| 3623 | * A base class for an instance of one of "views" over ArrayBuffer, |
| 3624 | * including TypedArrays and DataView (ES6 draft 15.13). |
| 3625 | * |
| 3626 | * This API is experimental and may change significantly. |
| 3627 | */ |
| 3628 | class V8_EXPORT ArrayBufferView : public Object { |
| 3629 | public: |
| 3630 | /** |
| 3631 | * Returns underlying ArrayBuffer. |
| 3632 | */ |
| 3633 | Local<ArrayBuffer> Buffer(); |
| 3634 | /** |
| 3635 | * Byte offset in |Buffer|. |
| 3636 | */ |
| 3637 | size_t ByteOffset(); |
| 3638 | /** |
| 3639 | * Size of a view in bytes. |
| 3640 | */ |
| 3641 | size_t ByteLength(); |
| 3642 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3643 | /** |
| 3644 | * Copy the contents of the ArrayBufferView's buffer to an embedder defined |
| 3645 | * memory without additional overhead that calling ArrayBufferView::Buffer |
| 3646 | * might incur. |
| 3647 | * |
| 3648 | * Will write at most min(|byte_length|, ByteLength) bytes starting at |
| 3649 | * ByteOffset of the underling buffer to the memory starting at |dest|. |
| 3650 | * Returns the number of bytes actually written. |
| 3651 | */ |
| 3652 | size_t CopyContents(void* dest, size_t byte_length); |
| 3653 | |
| 3654 | /** |
| 3655 | * Returns true if ArrayBufferView's backing ArrayBuffer has already been |
| 3656 | * allocated. |
| 3657 | */ |
| 3658 | bool HasBuffer() const; |
| 3659 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3660 | V8_INLINE static ArrayBufferView* Cast(Value* obj); |
| 3661 | |
| 3662 | static const int kInternalFieldCount = |
| 3663 | V8_ARRAY_BUFFER_VIEW_INTERNAL_FIELD_COUNT; |
| 3664 | |
| 3665 | private: |
| 3666 | ArrayBufferView(); |
| 3667 | static void CheckCast(Value* obj); |
| 3668 | }; |
| 3669 | |
| 3670 | |
| 3671 | /** |
| 3672 | * A base class for an instance of TypedArray series of constructors |
| 3673 | * (ES6 draft 15.13.6). |
| 3674 | * This API is experimental and may change significantly. |
| 3675 | */ |
| 3676 | class V8_EXPORT TypedArray : public ArrayBufferView { |
| 3677 | public: |
| 3678 | /** |
| 3679 | * Number of elements in this typed array |
| 3680 | * (e.g. for Int16Array, |ByteLength|/2). |
| 3681 | */ |
| 3682 | size_t Length(); |
| 3683 | |
| 3684 | V8_INLINE static TypedArray* Cast(Value* obj); |
| 3685 | |
| 3686 | private: |
| 3687 | TypedArray(); |
| 3688 | static void CheckCast(Value* obj); |
| 3689 | }; |
| 3690 | |
| 3691 | |
| 3692 | /** |
| 3693 | * An instance of Uint8Array constructor (ES6 draft 15.13.6). |
| 3694 | * This API is experimental and may change significantly. |
| 3695 | */ |
| 3696 | class V8_EXPORT Uint8Array : public TypedArray { |
| 3697 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3698 | static Local<Uint8Array> New(Local<ArrayBuffer> array_buffer, |
| 3699 | size_t byte_offset, size_t length); |
| 3700 | static Local<Uint8Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3701 | size_t byte_offset, size_t length); |
| 3702 | V8_INLINE static Uint8Array* Cast(Value* obj); |
| 3703 | |
| 3704 | private: |
| 3705 | Uint8Array(); |
| 3706 | static void CheckCast(Value* obj); |
| 3707 | }; |
| 3708 | |
| 3709 | |
| 3710 | /** |
| 3711 | * An instance of Uint8ClampedArray constructor (ES6 draft 15.13.6). |
| 3712 | * This API is experimental and may change significantly. |
| 3713 | */ |
| 3714 | class V8_EXPORT Uint8ClampedArray : public TypedArray { |
| 3715 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3716 | static Local<Uint8ClampedArray> New(Local<ArrayBuffer> array_buffer, |
| 3717 | size_t byte_offset, size_t length); |
| 3718 | static Local<Uint8ClampedArray> New( |
| 3719 | Local<SharedArrayBuffer> shared_array_buffer, size_t byte_offset, |
| 3720 | size_t length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3721 | V8_INLINE static Uint8ClampedArray* Cast(Value* obj); |
| 3722 | |
| 3723 | private: |
| 3724 | Uint8ClampedArray(); |
| 3725 | static void CheckCast(Value* obj); |
| 3726 | }; |
| 3727 | |
| 3728 | /** |
| 3729 | * An instance of Int8Array constructor (ES6 draft 15.13.6). |
| 3730 | * This API is experimental and may change significantly. |
| 3731 | */ |
| 3732 | class V8_EXPORT Int8Array : public TypedArray { |
| 3733 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3734 | static Local<Int8Array> New(Local<ArrayBuffer> array_buffer, |
| 3735 | size_t byte_offset, size_t length); |
| 3736 | static Local<Int8Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
| 3737 | size_t byte_offset, size_t length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3738 | V8_INLINE static Int8Array* Cast(Value* obj); |
| 3739 | |
| 3740 | private: |
| 3741 | Int8Array(); |
| 3742 | static void CheckCast(Value* obj); |
| 3743 | }; |
| 3744 | |
| 3745 | |
| 3746 | /** |
| 3747 | * An instance of Uint16Array constructor (ES6 draft 15.13.6). |
| 3748 | * This API is experimental and may change significantly. |
| 3749 | */ |
| 3750 | class V8_EXPORT Uint16Array : public TypedArray { |
| 3751 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3752 | static Local<Uint16Array> New(Local<ArrayBuffer> array_buffer, |
| 3753 | size_t byte_offset, size_t length); |
| 3754 | static Local<Uint16Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
| 3755 | size_t byte_offset, size_t length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3756 | V8_INLINE static Uint16Array* Cast(Value* obj); |
| 3757 | |
| 3758 | private: |
| 3759 | Uint16Array(); |
| 3760 | static void CheckCast(Value* obj); |
| 3761 | }; |
| 3762 | |
| 3763 | |
| 3764 | /** |
| 3765 | * An instance of Int16Array constructor (ES6 draft 15.13.6). |
| 3766 | * This API is experimental and may change significantly. |
| 3767 | */ |
| 3768 | class V8_EXPORT Int16Array : public TypedArray { |
| 3769 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3770 | static Local<Int16Array> New(Local<ArrayBuffer> array_buffer, |
| 3771 | size_t byte_offset, size_t length); |
| 3772 | static Local<Int16Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3773 | size_t byte_offset, size_t length); |
| 3774 | V8_INLINE static Int16Array* Cast(Value* obj); |
| 3775 | |
| 3776 | private: |
| 3777 | Int16Array(); |
| 3778 | static void CheckCast(Value* obj); |
| 3779 | }; |
| 3780 | |
| 3781 | |
| 3782 | /** |
| 3783 | * An instance of Uint32Array constructor (ES6 draft 15.13.6). |
| 3784 | * This API is experimental and may change significantly. |
| 3785 | */ |
| 3786 | class V8_EXPORT Uint32Array : public TypedArray { |
| 3787 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3788 | static Local<Uint32Array> New(Local<ArrayBuffer> array_buffer, |
| 3789 | size_t byte_offset, size_t length); |
| 3790 | static Local<Uint32Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
| 3791 | size_t byte_offset, size_t length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3792 | V8_INLINE static Uint32Array* Cast(Value* obj); |
| 3793 | |
| 3794 | private: |
| 3795 | Uint32Array(); |
| 3796 | static void CheckCast(Value* obj); |
| 3797 | }; |
| 3798 | |
| 3799 | |
| 3800 | /** |
| 3801 | * An instance of Int32Array constructor (ES6 draft 15.13.6). |
| 3802 | * This API is experimental and may change significantly. |
| 3803 | */ |
| 3804 | class V8_EXPORT Int32Array : public TypedArray { |
| 3805 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3806 | static Local<Int32Array> New(Local<ArrayBuffer> array_buffer, |
| 3807 | size_t byte_offset, size_t length); |
| 3808 | static Local<Int32Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3809 | size_t byte_offset, size_t length); |
| 3810 | V8_INLINE static Int32Array* Cast(Value* obj); |
| 3811 | |
| 3812 | private: |
| 3813 | Int32Array(); |
| 3814 | static void CheckCast(Value* obj); |
| 3815 | }; |
| 3816 | |
| 3817 | |
| 3818 | /** |
| 3819 | * An instance of Float32Array constructor (ES6 draft 15.13.6). |
| 3820 | * This API is experimental and may change significantly. |
| 3821 | */ |
| 3822 | class V8_EXPORT Float32Array : public TypedArray { |
| 3823 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3824 | static Local<Float32Array> New(Local<ArrayBuffer> array_buffer, |
| 3825 | size_t byte_offset, size_t length); |
| 3826 | static Local<Float32Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
| 3827 | size_t byte_offset, size_t length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3828 | V8_INLINE static Float32Array* Cast(Value* obj); |
| 3829 | |
| 3830 | private: |
| 3831 | Float32Array(); |
| 3832 | static void CheckCast(Value* obj); |
| 3833 | }; |
| 3834 | |
| 3835 | |
| 3836 | /** |
| 3837 | * An instance of Float64Array constructor (ES6 draft 15.13.6). |
| 3838 | * This API is experimental and may change significantly. |
| 3839 | */ |
| 3840 | class V8_EXPORT Float64Array : public TypedArray { |
| 3841 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3842 | static Local<Float64Array> New(Local<ArrayBuffer> array_buffer, |
| 3843 | size_t byte_offset, size_t length); |
| 3844 | static Local<Float64Array> New(Local<SharedArrayBuffer> shared_array_buffer, |
| 3845 | size_t byte_offset, size_t length); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3846 | V8_INLINE static Float64Array* Cast(Value* obj); |
| 3847 | |
| 3848 | private: |
| 3849 | Float64Array(); |
| 3850 | static void CheckCast(Value* obj); |
| 3851 | }; |
| 3852 | |
| 3853 | |
| 3854 | /** |
| 3855 | * An instance of DataView constructor (ES6 draft 15.13.7). |
| 3856 | * This API is experimental and may change significantly. |
| 3857 | */ |
| 3858 | class V8_EXPORT DataView : public ArrayBufferView { |
| 3859 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3860 | static Local<DataView> New(Local<ArrayBuffer> array_buffer, |
| 3861 | size_t byte_offset, size_t length); |
| 3862 | static Local<DataView> New(Local<SharedArrayBuffer> shared_array_buffer, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3863 | size_t byte_offset, size_t length); |
| 3864 | V8_INLINE static DataView* Cast(Value* obj); |
| 3865 | |
| 3866 | private: |
| 3867 | DataView(); |
| 3868 | static void CheckCast(Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3869 | }; |
| 3870 | |
| 3871 | |
| 3872 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3873 | * An instance of the built-in SharedArrayBuffer constructor. |
| 3874 | * This API is experimental and may change significantly. |
| 3875 | */ |
| 3876 | class V8_EXPORT SharedArrayBuffer : public Object { |
| 3877 | public: |
| 3878 | /** |
| 3879 | * The contents of an |SharedArrayBuffer|. Externalization of |
| 3880 | * |SharedArrayBuffer| returns an instance of this class, populated, with a |
| 3881 | * pointer to data and byte length. |
| 3882 | * |
| 3883 | * The Data pointer of SharedArrayBuffer::Contents is always allocated with |
| 3884 | * |ArrayBuffer::Allocator::Allocate| by the allocator specified in |
| 3885 | * v8::Isolate::CreateParams::array_buffer_allocator. |
| 3886 | * |
| 3887 | * This API is experimental and may change significantly. |
| 3888 | */ |
| 3889 | class V8_EXPORT Contents { // NOLINT |
| 3890 | public: |
| 3891 | Contents() : data_(NULL), byte_length_(0) {} |
| 3892 | |
| 3893 | void* Data() const { return data_; } |
| 3894 | size_t ByteLength() const { return byte_length_; } |
| 3895 | |
| 3896 | private: |
| 3897 | void* data_; |
| 3898 | size_t byte_length_; |
| 3899 | |
| 3900 | friend class SharedArrayBuffer; |
| 3901 | }; |
| 3902 | |
| 3903 | |
| 3904 | /** |
| 3905 | * Data length in bytes. |
| 3906 | */ |
| 3907 | size_t ByteLength() const; |
| 3908 | |
| 3909 | /** |
| 3910 | * Create a new SharedArrayBuffer. Allocate |byte_length| bytes. |
| 3911 | * Allocated memory will be owned by a created SharedArrayBuffer and |
| 3912 | * will be deallocated when it is garbage-collected, |
| 3913 | * unless the object is externalized. |
| 3914 | */ |
| 3915 | static Local<SharedArrayBuffer> New(Isolate* isolate, size_t byte_length); |
| 3916 | |
| 3917 | /** |
| 3918 | * Create a new SharedArrayBuffer over an existing memory block. The created |
| 3919 | * array buffer is immediately in externalized state unless otherwise |
| 3920 | * specified. The memory block will not be reclaimed when a created |
| 3921 | * SharedArrayBuffer is garbage-collected. |
| 3922 | */ |
| 3923 | static Local<SharedArrayBuffer> New( |
| 3924 | Isolate* isolate, void* data, size_t byte_length, |
| 3925 | ArrayBufferCreationMode mode = ArrayBufferCreationMode::kExternalized); |
| 3926 | |
| 3927 | /** |
| 3928 | * Returns true if SharedArrayBuffer is externalized, that is, does not |
| 3929 | * own its memory block. |
| 3930 | */ |
| 3931 | bool IsExternal() const; |
| 3932 | |
| 3933 | /** |
| 3934 | * Make this SharedArrayBuffer external. The pointer to underlying memory |
| 3935 | * block and byte length are returned as |Contents| structure. After |
| 3936 | * SharedArrayBuffer had been etxrenalized, it does no longer owns the memory |
| 3937 | * block. The caller should take steps to free memory when it is no longer |
| 3938 | * needed. |
| 3939 | * |
| 3940 | * The memory block is guaranteed to be allocated with |Allocator::Allocate| |
| 3941 | * by the allocator specified in |
| 3942 | * v8::Isolate::CreateParams::array_buffer_allocator. |
| 3943 | * |
| 3944 | */ |
| 3945 | Contents Externalize(); |
| 3946 | |
| 3947 | /** |
| 3948 | * Get a pointer to the ArrayBuffer's underlying memory block without |
| 3949 | * externalizing it. If the ArrayBuffer is not externalized, this pointer |
| 3950 | * will become invalid as soon as the ArrayBuffer became garbage collected. |
| 3951 | * |
| 3952 | * The embedder should make sure to hold a strong reference to the |
| 3953 | * ArrayBuffer while accessing this pointer. |
| 3954 | * |
| 3955 | * The memory block is guaranteed to be allocated with |Allocator::Allocate| |
| 3956 | * by the allocator specified in |
| 3957 | * v8::Isolate::CreateParams::array_buffer_allocator. |
| 3958 | */ |
| 3959 | Contents GetContents(); |
| 3960 | |
| 3961 | V8_INLINE static SharedArrayBuffer* Cast(Value* obj); |
| 3962 | |
| 3963 | static const int kInternalFieldCount = V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT; |
| 3964 | |
| 3965 | private: |
| 3966 | SharedArrayBuffer(); |
| 3967 | static void CheckCast(Value* obj); |
| 3968 | }; |
| 3969 | |
| 3970 | |
| 3971 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3972 | * An instance of the built-in Date constructor (ECMA-262, 15.9). |
| 3973 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3974 | class V8_EXPORT Date : public Object { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3975 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3976 | static V8_DEPRECATE_SOON("Use maybe version.", |
| 3977 | Local<Value> New(Isolate* isolate, double time)); |
| 3978 | static V8_WARN_UNUSED_RESULT MaybeLocal<Value> New(Local<Context> context, |
| 3979 | double time); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3980 | |
| 3981 | /** |
| 3982 | * A specialization of Value::NumberValue that is more efficient |
| 3983 | * because we know the structure of this object. |
| 3984 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3985 | double ValueOf() const; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3986 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3987 | V8_INLINE static Date* Cast(v8::Value* obj); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3988 | |
| 3989 | /** |
| 3990 | * Notification that the embedder has changed the time zone, |
| 3991 | * daylight savings time, or other date / time configuration |
| 3992 | * parameters. V8 keeps a cache of various values used for |
| 3993 | * date / time computation. This notification will reset |
| 3994 | * those cached values for the current context so that date / |
| 3995 | * time configuration changes would be reflected in the Date |
| 3996 | * object. |
| 3997 | * |
| 3998 | * This API should not be called more than needed as it will |
| 3999 | * negatively impact the performance of date operations. |
| 4000 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4001 | static void DateTimeConfigurationChangeNotification(Isolate* isolate); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4002 | |
| 4003 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4004 | static void CheckCast(v8::Value* obj); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4005 | }; |
| 4006 | |
| 4007 | |
| 4008 | /** |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4009 | * A Number object (ECMA-262, 4.3.21). |
| 4010 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4011 | class V8_EXPORT NumberObject : public Object { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4012 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4013 | static Local<Value> New(Isolate* isolate, double value); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4014 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4015 | double ValueOf() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4016 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4017 | V8_INLINE static NumberObject* Cast(v8::Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4018 | |
| 4019 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4020 | static void CheckCast(v8::Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4021 | }; |
| 4022 | |
| 4023 | |
| 4024 | /** |
| 4025 | * A Boolean object (ECMA-262, 4.3.15). |
| 4026 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4027 | class V8_EXPORT BooleanObject : public Object { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4028 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4029 | static Local<Value> New(Isolate* isolate, bool value); |
| 4030 | V8_DEPRECATED("Pass an isolate", static Local<Value> New(bool value)); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4031 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4032 | bool ValueOf() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4033 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4034 | V8_INLINE static BooleanObject* Cast(v8::Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4035 | |
| 4036 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4037 | static void CheckCast(v8::Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4038 | }; |
| 4039 | |
| 4040 | |
| 4041 | /** |
| 4042 | * A String object (ECMA-262, 4.3.18). |
| 4043 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4044 | class V8_EXPORT StringObject : public Object { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4045 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4046 | static Local<Value> New(Local<String> value); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4047 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4048 | Local<String> ValueOf() const; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4049 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4050 | V8_INLINE static StringObject* Cast(v8::Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4051 | |
| 4052 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4053 | static void CheckCast(v8::Value* obj); |
| 4054 | }; |
| 4055 | |
| 4056 | |
| 4057 | /** |
| 4058 | * A Symbol object (ECMA-262 edition 6). |
| 4059 | * |
| 4060 | * This is an experimental feature. Use at your own risk. |
| 4061 | */ |
| 4062 | class V8_EXPORT SymbolObject : public Object { |
| 4063 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4064 | static Local<Value> New(Isolate* isolate, Local<Symbol> value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4065 | |
| 4066 | Local<Symbol> ValueOf() const; |
| 4067 | |
| 4068 | V8_INLINE static SymbolObject* Cast(v8::Value* obj); |
| 4069 | |
| 4070 | private: |
| 4071 | static void CheckCast(v8::Value* obj); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4072 | }; |
| 4073 | |
| 4074 | |
| 4075 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4076 | * An instance of the built-in RegExp constructor (ECMA-262, 15.10). |
| 4077 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4078 | class V8_EXPORT RegExp : public Object { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4079 | public: |
| 4080 | /** |
| 4081 | * Regular expression flag bits. They can be or'ed to enable a set |
| 4082 | * of flags. |
| 4083 | */ |
| 4084 | enum Flags { |
| 4085 | kNone = 0, |
| 4086 | kGlobal = 1, |
| 4087 | kIgnoreCase = 2, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4088 | kMultiline = 4, |
| 4089 | kSticky = 8, |
| 4090 | kUnicode = 16 |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4091 | }; |
| 4092 | |
| 4093 | /** |
| 4094 | * Creates a regular expression from the given pattern string and |
| 4095 | * the flags bit field. May throw a JavaScript exception as |
| 4096 | * described in ECMA-262, 15.10.4.1. |
| 4097 | * |
| 4098 | * For example, |
| 4099 | * RegExp::New(v8::String::New("foo"), |
| 4100 | * static_cast<RegExp::Flags>(kGlobal | kMultiline)) |
| 4101 | * is equivalent to evaluating "/foo/gm". |
| 4102 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4103 | static V8_DEPRECATE_SOON("Use maybe version", |
| 4104 | Local<RegExp> New(Local<String> pattern, |
| 4105 | Flags flags)); |
| 4106 | static V8_WARN_UNUSED_RESULT MaybeLocal<RegExp> New(Local<Context> context, |
| 4107 | Local<String> pattern, |
| 4108 | Flags flags); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4109 | |
| 4110 | /** |
| 4111 | * Returns the value of the source property: a string representing |
| 4112 | * the regular expression. |
| 4113 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4114 | Local<String> GetSource() const; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4115 | |
| 4116 | /** |
| 4117 | * Returns the flags bit field. |
| 4118 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4119 | Flags GetFlags() const; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4120 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4121 | V8_INLINE static RegExp* Cast(v8::Value* obj); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4122 | |
| 4123 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4124 | static void CheckCast(v8::Value* obj); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4125 | }; |
| 4126 | |
| 4127 | |
| 4128 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4129 | * A JavaScript value that wraps a C++ void*. This type of value is mainly used |
| 4130 | * to associate C++ data structures with JavaScript objects. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4131 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4132 | class V8_EXPORT External : public Value { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4133 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4134 | static Local<External> New(Isolate* isolate, void* value); |
| 4135 | V8_INLINE static External* Cast(Value* obj); |
| 4136 | void* Value() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4137 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4138 | static void CheckCast(v8::Value* obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4139 | }; |
| 4140 | |
| 4141 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4142 | #define V8_INTRINSICS_LIST(F) F(ArrayProto_values, array_values_iterator) |
| 4143 | |
| 4144 | enum Intrinsic { |
| 4145 | #define V8_DECL_INTRINSIC(name, iname) k##name, |
| 4146 | V8_INTRINSICS_LIST(V8_DECL_INTRINSIC) |
| 4147 | #undef V8_DECL_INTRINSIC |
| 4148 | }; |
| 4149 | |
| 4150 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4151 | // --- Templates --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4152 | |
| 4153 | |
| 4154 | /** |
| 4155 | * The superclass of object and function templates. |
| 4156 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4157 | class V8_EXPORT Template : public Data { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4158 | public: |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4159 | /** |
| 4160 | * Adds a property to each instance created by this template. |
| 4161 | * |
| 4162 | * The property must be defined either as a primitive value, or a template. |
| 4163 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4164 | void Set(Local<Name> name, Local<Data> value, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4165 | PropertyAttribute attributes = None); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4166 | V8_INLINE void Set(Isolate* isolate, const char* name, Local<Data> value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4167 | |
| 4168 | void SetAccessorProperty( |
| 4169 | Local<Name> name, |
| 4170 | Local<FunctionTemplate> getter = Local<FunctionTemplate>(), |
| 4171 | Local<FunctionTemplate> setter = Local<FunctionTemplate>(), |
| 4172 | PropertyAttribute attribute = None, |
| 4173 | AccessControl settings = DEFAULT); |
| 4174 | |
| 4175 | /** |
| 4176 | * Whenever the property with the given name is accessed on objects |
| 4177 | * created from this Template the getter and setter callbacks |
| 4178 | * are called instead of getting and setting the property directly |
| 4179 | * on the JavaScript object. |
| 4180 | * |
| 4181 | * \param name The name of the property for which an accessor is added. |
| 4182 | * \param getter The callback to invoke when getting the property. |
| 4183 | * \param setter The callback to invoke when setting the property. |
| 4184 | * \param data A piece of data that will be passed to the getter and setter |
| 4185 | * callbacks whenever they are invoked. |
| 4186 | * \param settings Access control settings for the accessor. This is a bit |
| 4187 | * field consisting of one of more of |
| 4188 | * DEFAULT = 0, ALL_CAN_READ = 1, or ALL_CAN_WRITE = 2. |
| 4189 | * The default is to not allow cross-context access. |
| 4190 | * ALL_CAN_READ means that all cross-context reads are allowed. |
| 4191 | * ALL_CAN_WRITE means that all cross-context writes are allowed. |
| 4192 | * The combination ALL_CAN_READ | ALL_CAN_WRITE can be used to allow all |
| 4193 | * cross-context access. |
| 4194 | * \param attribute The attributes of the property for which an accessor |
| 4195 | * is added. |
| 4196 | * \param signature The signature describes valid receivers for the accessor |
| 4197 | * and is used to perform implicit instance checks against them. If the |
| 4198 | * receiver is incompatible (i.e. is not an instance of the constructor as |
| 4199 | * defined by FunctionTemplate::HasInstance()), an implicit TypeError is |
| 4200 | * thrown and no callback is invoked. |
| 4201 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4202 | void SetNativeDataProperty( |
| 4203 | Local<String> name, AccessorGetterCallback getter, |
| 4204 | AccessorSetterCallback setter = 0, |
| 4205 | // TODO(dcarney): gcc can't handle Local below |
| 4206 | Local<Value> data = Local<Value>(), PropertyAttribute attribute = None, |
| 4207 | Local<AccessorSignature> signature = Local<AccessorSignature>(), |
| 4208 | AccessControl settings = DEFAULT); |
| 4209 | void SetNativeDataProperty( |
| 4210 | Local<Name> name, AccessorNameGetterCallback getter, |
| 4211 | AccessorNameSetterCallback setter = 0, |
| 4212 | // TODO(dcarney): gcc can't handle Local below |
| 4213 | Local<Value> data = Local<Value>(), PropertyAttribute attribute = None, |
| 4214 | Local<AccessorSignature> signature = Local<AccessorSignature>(), |
| 4215 | AccessControl settings = DEFAULT); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4216 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4217 | /** |
| 4218 | * During template instantiation, sets the value with the intrinsic property |
| 4219 | * from the correct context. |
| 4220 | */ |
| 4221 | void SetIntrinsicDataProperty(Local<Name> name, Intrinsic intrinsic, |
| 4222 | PropertyAttribute attribute = None); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4223 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4224 | private: |
| 4225 | Template(); |
| 4226 | |
| 4227 | friend class ObjectTemplate; |
| 4228 | friend class FunctionTemplate; |
| 4229 | }; |
| 4230 | |
| 4231 | |
| 4232 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4233 | * NamedProperty[Getter|Setter] are used as interceptors on object. |
| 4234 | * See ObjectTemplate::SetNamedPropertyHandler. |
| 4235 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4236 | typedef void (*NamedPropertyGetterCallback)( |
| 4237 | Local<String> property, |
| 4238 | const PropertyCallbackInfo<Value>& info); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4239 | |
| 4240 | |
| 4241 | /** |
| 4242 | * Returns the value if the setter intercepts the request. |
| 4243 | * Otherwise, returns an empty handle. |
| 4244 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4245 | typedef void (*NamedPropertySetterCallback)( |
| 4246 | Local<String> property, |
| 4247 | Local<Value> value, |
| 4248 | const PropertyCallbackInfo<Value>& info); |
| 4249 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4250 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4251 | /** |
| 4252 | * Returns a non-empty handle if the interceptor intercepts the request. |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 4253 | * The result is an integer encoding property attributes (like v8::None, |
| 4254 | * v8::DontEnum, etc.) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4255 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4256 | typedef void (*NamedPropertyQueryCallback)( |
| 4257 | Local<String> property, |
| 4258 | const PropertyCallbackInfo<Integer>& info); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4259 | |
| 4260 | |
| 4261 | /** |
| 4262 | * Returns a non-empty handle if the deleter intercepts the request. |
| 4263 | * The return value is true if the property could be deleted and false |
| 4264 | * otherwise. |
| 4265 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4266 | typedef void (*NamedPropertyDeleterCallback)( |
| 4267 | Local<String> property, |
| 4268 | const PropertyCallbackInfo<Boolean>& info); |
| 4269 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4270 | |
| 4271 | /** |
| 4272 | * Returns an array containing the names of the properties the named |
| 4273 | * property getter intercepts. |
| 4274 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4275 | typedef void (*NamedPropertyEnumeratorCallback)( |
| 4276 | const PropertyCallbackInfo<Array>& info); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4277 | |
| 4278 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4279 | // TODO(dcarney): Deprecate and remove previous typedefs, and replace |
| 4280 | // GenericNamedPropertyFooCallback with just NamedPropertyFooCallback. |
| 4281 | /** |
| 4282 | * GenericNamedProperty[Getter|Setter] are used as interceptors on object. |
| 4283 | * See ObjectTemplate::SetNamedPropertyHandler. |
| 4284 | */ |
| 4285 | typedef void (*GenericNamedPropertyGetterCallback)( |
| 4286 | Local<Name> property, const PropertyCallbackInfo<Value>& info); |
| 4287 | |
| 4288 | |
| 4289 | /** |
| 4290 | * Returns the value if the setter intercepts the request. |
| 4291 | * Otherwise, returns an empty handle. |
| 4292 | */ |
| 4293 | typedef void (*GenericNamedPropertySetterCallback)( |
| 4294 | Local<Name> property, Local<Value> value, |
| 4295 | const PropertyCallbackInfo<Value>& info); |
| 4296 | |
| 4297 | |
| 4298 | /** |
| 4299 | * Returns a non-empty handle if the interceptor intercepts the request. |
| 4300 | * The result is an integer encoding property attributes (like v8::None, |
| 4301 | * v8::DontEnum, etc.) |
| 4302 | */ |
| 4303 | typedef void (*GenericNamedPropertyQueryCallback)( |
| 4304 | Local<Name> property, const PropertyCallbackInfo<Integer>& info); |
| 4305 | |
| 4306 | |
| 4307 | /** |
| 4308 | * Returns a non-empty handle if the deleter intercepts the request. |
| 4309 | * The return value is true if the property could be deleted and false |
| 4310 | * otherwise. |
| 4311 | */ |
| 4312 | typedef void (*GenericNamedPropertyDeleterCallback)( |
| 4313 | Local<Name> property, const PropertyCallbackInfo<Boolean>& info); |
| 4314 | |
| 4315 | |
| 4316 | /** |
| 4317 | * Returns an array containing the names of the properties the named |
| 4318 | * property getter intercepts. |
| 4319 | */ |
| 4320 | typedef void (*GenericNamedPropertyEnumeratorCallback)( |
| 4321 | const PropertyCallbackInfo<Array>& info); |
| 4322 | |
| 4323 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4324 | /** |
| 4325 | * Returns the value of the property if the getter intercepts the |
| 4326 | * request. Otherwise, returns an empty handle. |
| 4327 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4328 | typedef void (*IndexedPropertyGetterCallback)( |
| 4329 | uint32_t index, |
| 4330 | const PropertyCallbackInfo<Value>& info); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4331 | |
| 4332 | |
| 4333 | /** |
| 4334 | * Returns the value if the setter intercepts the request. |
| 4335 | * Otherwise, returns an empty handle. |
| 4336 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4337 | typedef void (*IndexedPropertySetterCallback)( |
| 4338 | uint32_t index, |
| 4339 | Local<Value> value, |
| 4340 | const PropertyCallbackInfo<Value>& info); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4341 | |
| 4342 | |
| 4343 | /** |
| 4344 | * Returns a non-empty handle if the interceptor intercepts the request. |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 4345 | * The result is an integer encoding property attributes. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4346 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4347 | typedef void (*IndexedPropertyQueryCallback)( |
| 4348 | uint32_t index, |
| 4349 | const PropertyCallbackInfo<Integer>& info); |
| 4350 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4351 | |
| 4352 | /** |
| 4353 | * Returns a non-empty handle if the deleter intercepts the request. |
| 4354 | * The return value is true if the property could be deleted and false |
| 4355 | * otherwise. |
| 4356 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4357 | typedef void (*IndexedPropertyDeleterCallback)( |
| 4358 | uint32_t index, |
| 4359 | const PropertyCallbackInfo<Boolean>& info); |
| 4360 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4361 | |
| 4362 | /** |
| 4363 | * Returns an array containing the indices of the properties the |
| 4364 | * indexed property getter intercepts. |
| 4365 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4366 | typedef void (*IndexedPropertyEnumeratorCallback)( |
| 4367 | const PropertyCallbackInfo<Array>& info); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4368 | |
| 4369 | |
| 4370 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4371 | * Access type specification. |
| 4372 | */ |
| 4373 | enum AccessType { |
| 4374 | ACCESS_GET, |
| 4375 | ACCESS_SET, |
| 4376 | ACCESS_HAS, |
| 4377 | ACCESS_DELETE, |
| 4378 | ACCESS_KEYS |
| 4379 | }; |
| 4380 | |
| 4381 | |
| 4382 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4383 | * Returns true if the given context should be allowed to access the given |
| 4384 | * object. |
| 4385 | */ |
| 4386 | typedef bool (*AccessCheckCallback)(Local<Context> accessing_context, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4387 | Local<Object> accessed_object, |
| 4388 | Local<Value> data); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4389 | |
| 4390 | /** |
| 4391 | * A FunctionTemplate is used to create functions at runtime. There |
| 4392 | * can only be one function created from a FunctionTemplate in a |
| 4393 | * context. The lifetime of the created function is equal to the |
| 4394 | * lifetime of the context. So in case the embedder needs to create |
| 4395 | * temporary functions that can be collected using Scripts is |
| 4396 | * preferred. |
| 4397 | * |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4398 | * Any modification of a FunctionTemplate after first instantiation will trigger |
| 4399 | *a crash. |
| 4400 | * |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4401 | * A FunctionTemplate can have properties, these properties are added to the |
| 4402 | * function object when it is created. |
| 4403 | * |
| 4404 | * A FunctionTemplate has a corresponding instance template which is |
| 4405 | * used to create object instances when the function is used as a |
| 4406 | * constructor. Properties added to the instance template are added to |
| 4407 | * each object instance. |
| 4408 | * |
| 4409 | * A FunctionTemplate can have a prototype template. The prototype template |
| 4410 | * is used to create the prototype object of the function. |
| 4411 | * |
| 4412 | * The following example shows how to use a FunctionTemplate: |
| 4413 | * |
| 4414 | * \code |
| 4415 | * v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(); |
| 4416 | * t->Set("func_property", v8::Number::New(1)); |
| 4417 | * |
| 4418 | * v8::Local<v8::Template> proto_t = t->PrototypeTemplate(); |
| 4419 | * proto_t->Set("proto_method", v8::FunctionTemplate::New(InvokeCallback)); |
| 4420 | * proto_t->Set("proto_const", v8::Number::New(2)); |
| 4421 | * |
| 4422 | * v8::Local<v8::ObjectTemplate> instance_t = t->InstanceTemplate(); |
| 4423 | * instance_t->SetAccessor("instance_accessor", InstanceAccessorCallback); |
| 4424 | * instance_t->SetNamedPropertyHandler(PropertyHandlerCallback, ...); |
| 4425 | * instance_t->Set("instance_property", Number::New(3)); |
| 4426 | * |
| 4427 | * v8::Local<v8::Function> function = t->GetFunction(); |
| 4428 | * v8::Local<v8::Object> instance = function->NewInstance(); |
| 4429 | * \endcode |
| 4430 | * |
| 4431 | * Let's use "function" as the JS variable name of the function object |
| 4432 | * and "instance" for the instance object created above. The function |
| 4433 | * and the instance will have the following properties: |
| 4434 | * |
| 4435 | * \code |
| 4436 | * func_property in function == true; |
| 4437 | * function.func_property == 1; |
| 4438 | * |
| 4439 | * function.prototype.proto_method() invokes 'InvokeCallback' |
| 4440 | * function.prototype.proto_const == 2; |
| 4441 | * |
| 4442 | * instance instanceof function == true; |
| 4443 | * instance.instance_accessor calls 'InstanceAccessorCallback' |
| 4444 | * instance.instance_property == 3; |
| 4445 | * \endcode |
| 4446 | * |
| 4447 | * A FunctionTemplate can inherit from another one by calling the |
| 4448 | * FunctionTemplate::Inherit method. The following graph illustrates |
| 4449 | * the semantics of inheritance: |
| 4450 | * |
| 4451 | * \code |
| 4452 | * FunctionTemplate Parent -> Parent() . prototype -> { } |
| 4453 | * ^ ^ |
| 4454 | * | Inherit(Parent) | .__proto__ |
| 4455 | * | | |
| 4456 | * FunctionTemplate Child -> Child() . prototype -> { } |
| 4457 | * \endcode |
| 4458 | * |
| 4459 | * A FunctionTemplate 'Child' inherits from 'Parent', the prototype |
| 4460 | * object of the Child() function has __proto__ pointing to the |
| 4461 | * Parent() function's prototype object. An instance of the Child |
| 4462 | * function has all properties on Parent's instance templates. |
| 4463 | * |
| 4464 | * Let Parent be the FunctionTemplate initialized in the previous |
| 4465 | * section and create a Child FunctionTemplate by: |
| 4466 | * |
| 4467 | * \code |
| 4468 | * Local<FunctionTemplate> parent = t; |
| 4469 | * Local<FunctionTemplate> child = FunctionTemplate::New(); |
| 4470 | * child->Inherit(parent); |
| 4471 | * |
| 4472 | * Local<Function> child_function = child->GetFunction(); |
| 4473 | * Local<Object> child_instance = child_function->NewInstance(); |
| 4474 | * \endcode |
| 4475 | * |
| 4476 | * The Child function and Child instance will have the following |
| 4477 | * properties: |
| 4478 | * |
| 4479 | * \code |
| 4480 | * child_func.prototype.__proto__ == function.prototype; |
| 4481 | * child_instance.instance_accessor calls 'InstanceAccessorCallback' |
| 4482 | * child_instance.instance_property == 3; |
| 4483 | * \endcode |
| 4484 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4485 | class V8_EXPORT FunctionTemplate : public Template { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4486 | public: |
| 4487 | /** Creates a function template.*/ |
| 4488 | static Local<FunctionTemplate> New( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4489 | Isolate* isolate, FunctionCallback callback = 0, |
| 4490 | Local<Value> data = Local<Value>(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4491 | Local<Signature> signature = Local<Signature>(), int length = 0, |
| 4492 | ConstructorBehavior behavior = ConstructorBehavior::kAllow); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4493 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4494 | /** Get a template included in the snapshot by index. */ |
| 4495 | static Local<FunctionTemplate> FromSnapshot(Isolate* isolate, size_t index); |
| 4496 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4497 | /** |
| 4498 | * Creates a function template with a fast handler. If a fast handler is set, |
| 4499 | * the callback cannot be null. |
| 4500 | */ |
| 4501 | static Local<FunctionTemplate> NewWithFastHandler( |
| 4502 | Isolate* isolate, FunctionCallback callback, |
| 4503 | experimental::FastAccessorBuilder* fast_handler = nullptr, |
| 4504 | Local<Value> data = Local<Value>(), |
| 4505 | Local<Signature> signature = Local<Signature>(), int length = 0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4506 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4507 | /** Returns the unique function instance in the current execution context.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4508 | V8_DEPRECATE_SOON("Use maybe version", Local<Function> GetFunction()); |
| 4509 | V8_WARN_UNUSED_RESULT MaybeLocal<Function> GetFunction( |
| 4510 | Local<Context> context); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4511 | |
| 4512 | /** |
| 4513 | * Set the call-handler callback for a FunctionTemplate. This |
| 4514 | * callback is called whenever the function created from this |
| 4515 | * FunctionTemplate is called. |
| 4516 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4517 | void SetCallHandler( |
| 4518 | FunctionCallback callback, Local<Value> data = Local<Value>(), |
| 4519 | experimental::FastAccessorBuilder* fast_handler = nullptr); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4520 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4521 | /** Set the predefined length property for the FunctionTemplate. */ |
| 4522 | void SetLength(int length); |
| 4523 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4524 | /** Get the InstanceTemplate. */ |
| 4525 | Local<ObjectTemplate> InstanceTemplate(); |
| 4526 | |
| 4527 | /** Causes the function template to inherit from a parent function template.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4528 | void Inherit(Local<FunctionTemplate> parent); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4529 | |
| 4530 | /** |
| 4531 | * A PrototypeTemplate is the template used to create the prototype object |
| 4532 | * of the function created by this template. |
| 4533 | */ |
| 4534 | Local<ObjectTemplate> PrototypeTemplate(); |
| 4535 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4536 | /** |
| 4537 | * Set the class name of the FunctionTemplate. This is used for |
| 4538 | * printing objects created with the function created from the |
| 4539 | * FunctionTemplate as its constructor. |
| 4540 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4541 | void SetClassName(Local<String> name); |
| 4542 | |
| 4543 | |
| 4544 | /** |
| 4545 | * When set to true, no access check will be performed on the receiver of a |
| 4546 | * function call. Currently defaults to true, but this is subject to change. |
| 4547 | */ |
| 4548 | void SetAcceptAnyReceiver(bool value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4549 | |
| 4550 | /** |
| 4551 | * Determines whether the __proto__ accessor ignores instances of |
| 4552 | * the function template. If instances of the function template are |
| 4553 | * ignored, __proto__ skips all instances and instead returns the |
| 4554 | * next object in the prototype chain. |
| 4555 | * |
| 4556 | * Call with a value of true to make the __proto__ accessor ignore |
| 4557 | * instances of the function template. Call with a value of false |
| 4558 | * to make the __proto__ accessor not ignore instances of the |
| 4559 | * function template. By default, instances of a function template |
| 4560 | * are not ignored. |
| 4561 | */ |
| 4562 | void SetHiddenPrototype(bool value); |
| 4563 | |
| 4564 | /** |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4565 | * Sets the ReadOnly flag in the attributes of the 'prototype' property |
| 4566 | * of functions created from this FunctionTemplate to true. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4567 | */ |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4568 | void ReadOnlyPrototype(); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4569 | |
| 4570 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4571 | * Removes the prototype property from functions created from this |
| 4572 | * FunctionTemplate. |
| 4573 | */ |
| 4574 | void RemovePrototype(); |
| 4575 | |
| 4576 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4577 | * Returns true if the given object is an instance of this function |
| 4578 | * template. |
| 4579 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4580 | bool HasInstance(Local<Value> object); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4581 | |
| 4582 | private: |
| 4583 | FunctionTemplate(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4584 | friend class Context; |
| 4585 | friend class ObjectTemplate; |
| 4586 | }; |
| 4587 | |
| 4588 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4589 | enum class PropertyHandlerFlags { |
| 4590 | kNone = 0, |
| 4591 | // See ALL_CAN_READ above. |
| 4592 | kAllCanRead = 1, |
| 4593 | // Will not call into interceptor for properties on the receiver or prototype |
| 4594 | // chain. Currently only valid for named interceptors. |
| 4595 | kNonMasking = 1 << 1, |
| 4596 | // Will not call into interceptor for symbol lookup. Only meaningful for |
| 4597 | // named interceptors. |
| 4598 | kOnlyInterceptStrings = 1 << 2, |
| 4599 | }; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4600 | |
| 4601 | |
| 4602 | struct NamedPropertyHandlerConfiguration { |
| 4603 | NamedPropertyHandlerConfiguration( |
| 4604 | /** Note: getter is required **/ |
| 4605 | GenericNamedPropertyGetterCallback getter = 0, |
| 4606 | GenericNamedPropertySetterCallback setter = 0, |
| 4607 | GenericNamedPropertyQueryCallback query = 0, |
| 4608 | GenericNamedPropertyDeleterCallback deleter = 0, |
| 4609 | GenericNamedPropertyEnumeratorCallback enumerator = 0, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4610 | Local<Value> data = Local<Value>(), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4611 | PropertyHandlerFlags flags = PropertyHandlerFlags::kNone) |
| 4612 | : getter(getter), |
| 4613 | setter(setter), |
| 4614 | query(query), |
| 4615 | deleter(deleter), |
| 4616 | enumerator(enumerator), |
| 4617 | data(data), |
| 4618 | flags(flags) {} |
| 4619 | |
| 4620 | GenericNamedPropertyGetterCallback getter; |
| 4621 | GenericNamedPropertySetterCallback setter; |
| 4622 | GenericNamedPropertyQueryCallback query; |
| 4623 | GenericNamedPropertyDeleterCallback deleter; |
| 4624 | GenericNamedPropertyEnumeratorCallback enumerator; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4625 | Local<Value> data; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4626 | PropertyHandlerFlags flags; |
| 4627 | }; |
| 4628 | |
| 4629 | |
| 4630 | struct IndexedPropertyHandlerConfiguration { |
| 4631 | IndexedPropertyHandlerConfiguration( |
| 4632 | /** Note: getter is required **/ |
| 4633 | IndexedPropertyGetterCallback getter = 0, |
| 4634 | IndexedPropertySetterCallback setter = 0, |
| 4635 | IndexedPropertyQueryCallback query = 0, |
| 4636 | IndexedPropertyDeleterCallback deleter = 0, |
| 4637 | IndexedPropertyEnumeratorCallback enumerator = 0, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4638 | Local<Value> data = Local<Value>(), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4639 | PropertyHandlerFlags flags = PropertyHandlerFlags::kNone) |
| 4640 | : getter(getter), |
| 4641 | setter(setter), |
| 4642 | query(query), |
| 4643 | deleter(deleter), |
| 4644 | enumerator(enumerator), |
| 4645 | data(data), |
| 4646 | flags(flags) {} |
| 4647 | |
| 4648 | IndexedPropertyGetterCallback getter; |
| 4649 | IndexedPropertySetterCallback setter; |
| 4650 | IndexedPropertyQueryCallback query; |
| 4651 | IndexedPropertyDeleterCallback deleter; |
| 4652 | IndexedPropertyEnumeratorCallback enumerator; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4653 | Local<Value> data; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4654 | PropertyHandlerFlags flags; |
| 4655 | }; |
| 4656 | |
| 4657 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4658 | /** |
| 4659 | * An ObjectTemplate is used to create objects at runtime. |
| 4660 | * |
| 4661 | * Properties added to an ObjectTemplate are added to each object |
| 4662 | * created from the ObjectTemplate. |
| 4663 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4664 | class V8_EXPORT ObjectTemplate : public Template { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4665 | public: |
| 4666 | /** Creates an ObjectTemplate. */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4667 | static Local<ObjectTemplate> New( |
| 4668 | Isolate* isolate, |
| 4669 | Local<FunctionTemplate> constructor = Local<FunctionTemplate>()); |
| 4670 | static V8_DEPRECATED("Use isolate version", Local<ObjectTemplate> New()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4671 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4672 | /** Get a template included in the snapshot by index. */ |
| 4673 | static Local<ObjectTemplate> FromSnapshot(Isolate* isolate, size_t index); |
| 4674 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4675 | /** Creates a new instance of this template.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4676 | V8_DEPRECATE_SOON("Use maybe version", Local<Object> NewInstance()); |
| 4677 | V8_WARN_UNUSED_RESULT MaybeLocal<Object> NewInstance(Local<Context> context); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4678 | |
| 4679 | /** |
| 4680 | * Sets an accessor on the object template. |
| 4681 | * |
| 4682 | * Whenever the property with the given name is accessed on objects |
| 4683 | * created from this ObjectTemplate the getter and setter callbacks |
| 4684 | * are called instead of getting and setting the property directly |
| 4685 | * on the JavaScript object. |
| 4686 | * |
| 4687 | * \param name The name of the property for which an accessor is added. |
| 4688 | * \param getter The callback to invoke when getting the property. |
| 4689 | * \param setter The callback to invoke when setting the property. |
| 4690 | * \param data A piece of data that will be passed to the getter and setter |
| 4691 | * callbacks whenever they are invoked. |
| 4692 | * \param settings Access control settings for the accessor. This is a bit |
| 4693 | * field consisting of one of more of |
| 4694 | * DEFAULT = 0, ALL_CAN_READ = 1, or ALL_CAN_WRITE = 2. |
| 4695 | * The default is to not allow cross-context access. |
| 4696 | * ALL_CAN_READ means that all cross-context reads are allowed. |
| 4697 | * ALL_CAN_WRITE means that all cross-context writes are allowed. |
| 4698 | * The combination ALL_CAN_READ | ALL_CAN_WRITE can be used to allow all |
| 4699 | * cross-context access. |
| 4700 | * \param attribute The attributes of the property for which an accessor |
| 4701 | * is added. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4702 | * \param signature The signature describes valid receivers for the accessor |
| 4703 | * and is used to perform implicit instance checks against them. If the |
| 4704 | * receiver is incompatible (i.e. is not an instance of the constructor as |
| 4705 | * defined by FunctionTemplate::HasInstance()), an implicit TypeError is |
| 4706 | * thrown and no callback is invoked. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4707 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4708 | void SetAccessor( |
| 4709 | Local<String> name, AccessorGetterCallback getter, |
| 4710 | AccessorSetterCallback setter = 0, Local<Value> data = Local<Value>(), |
| 4711 | AccessControl settings = DEFAULT, PropertyAttribute attribute = None, |
| 4712 | Local<AccessorSignature> signature = Local<AccessorSignature>()); |
| 4713 | void SetAccessor( |
| 4714 | Local<Name> name, AccessorNameGetterCallback getter, |
| 4715 | AccessorNameSetterCallback setter = 0, Local<Value> data = Local<Value>(), |
| 4716 | AccessControl settings = DEFAULT, PropertyAttribute attribute = None, |
| 4717 | Local<AccessorSignature> signature = Local<AccessorSignature>()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4718 | |
| 4719 | /** |
| 4720 | * Sets a named property handler on the object template. |
| 4721 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4722 | * Whenever a property whose name is a string is accessed on objects created |
| 4723 | * from this object template, the provided callback is invoked instead of |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4724 | * accessing the property directly on the JavaScript object. |
| 4725 | * |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4726 | * Note that new code should use the second version that can intercept |
| 4727 | * symbol-named properties as well as string-named properties. |
| 4728 | * |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4729 | * \param getter The callback to invoke when getting a property. |
| 4730 | * \param setter The callback to invoke when setting a property. |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 4731 | * \param query The callback to invoke to check if a property is present, |
| 4732 | * and if present, get its attributes. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4733 | * \param deleter The callback to invoke when deleting a property. |
| 4734 | * \param enumerator The callback to invoke to enumerate all the named |
| 4735 | * properties of an object. |
| 4736 | * \param data A piece of data that will be passed to the callbacks |
| 4737 | * whenever they are invoked. |
| 4738 | */ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4739 | // TODO(dcarney): deprecate |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4740 | void SetNamedPropertyHandler(NamedPropertyGetterCallback getter, |
| 4741 | NamedPropertySetterCallback setter = 0, |
| 4742 | NamedPropertyQueryCallback query = 0, |
| 4743 | NamedPropertyDeleterCallback deleter = 0, |
| 4744 | NamedPropertyEnumeratorCallback enumerator = 0, |
| 4745 | Local<Value> data = Local<Value>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4746 | void SetHandler(const NamedPropertyHandlerConfiguration& configuration); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4747 | |
| 4748 | /** |
| 4749 | * Sets an indexed property handler on the object template. |
| 4750 | * |
| 4751 | * Whenever an indexed property is accessed on objects created from |
| 4752 | * this object template, the provided callback is invoked instead of |
| 4753 | * accessing the property directly on the JavaScript object. |
| 4754 | * |
| 4755 | * \param getter The callback to invoke when getting a property. |
| 4756 | * \param setter The callback to invoke when setting a property. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4757 | * \param query The callback to invoke to check if an object has a property. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4758 | * \param deleter The callback to invoke when deleting a property. |
| 4759 | * \param enumerator The callback to invoke to enumerate all the indexed |
| 4760 | * properties of an object. |
| 4761 | * \param data A piece of data that will be passed to the callbacks |
| 4762 | * whenever they are invoked. |
| 4763 | */ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4764 | void SetHandler(const IndexedPropertyHandlerConfiguration& configuration); |
| 4765 | // TODO(dcarney): deprecate |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4766 | void SetIndexedPropertyHandler( |
| 4767 | IndexedPropertyGetterCallback getter, |
| 4768 | IndexedPropertySetterCallback setter = 0, |
| 4769 | IndexedPropertyQueryCallback query = 0, |
| 4770 | IndexedPropertyDeleterCallback deleter = 0, |
| 4771 | IndexedPropertyEnumeratorCallback enumerator = 0, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4772 | Local<Value> data = Local<Value>()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4773 | SetHandler(IndexedPropertyHandlerConfiguration(getter, setter, query, |
| 4774 | deleter, enumerator, data)); |
| 4775 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4776 | /** |
| 4777 | * Sets the callback to be used when calling instances created from |
| 4778 | * this template as a function. If no callback is set, instances |
| 4779 | * behave like normal JavaScript objects that cannot be called as a |
| 4780 | * function. |
| 4781 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4782 | void SetCallAsFunctionHandler(FunctionCallback callback, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4783 | Local<Value> data = Local<Value>()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4784 | |
| 4785 | /** |
| 4786 | * Mark object instances of the template as undetectable. |
| 4787 | * |
| 4788 | * In many ways, undetectable objects behave as though they are not |
| 4789 | * there. They behave like 'undefined' in conditionals and when |
| 4790 | * printed. However, properties can be accessed and called as on |
| 4791 | * normal objects. |
| 4792 | */ |
| 4793 | void MarkAsUndetectable(); |
| 4794 | |
| 4795 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4796 | * Sets access check callback on the object template and enables access |
| 4797 | * checks. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4798 | * |
| 4799 | * When accessing properties on instances of this object template, |
| 4800 | * the access check callback will be called to determine whether or |
| 4801 | * not to allow cross-context access to the properties. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4802 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4803 | void SetAccessCheckCallback(AccessCheckCallback callback, |
| 4804 | Local<Value> data = Local<Value>()); |
| 4805 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4806 | /** |
| 4807 | * Like SetAccessCheckCallback but invokes an interceptor on failed access |
| 4808 | * checks instead of looking up all-can-read properties. You can only use |
| 4809 | * either this method or SetAccessCheckCallback, but not both at the same |
| 4810 | * time. |
| 4811 | */ |
| 4812 | void SetAccessCheckCallbackAndHandler( |
| 4813 | AccessCheckCallback callback, |
| 4814 | const NamedPropertyHandlerConfiguration& named_handler, |
| 4815 | const IndexedPropertyHandlerConfiguration& indexed_handler, |
| 4816 | Local<Value> data = Local<Value>()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4817 | |
| 4818 | /** |
| 4819 | * Gets the number of internal fields for objects generated from |
| 4820 | * this template. |
| 4821 | */ |
| 4822 | int InternalFieldCount(); |
| 4823 | |
| 4824 | /** |
| 4825 | * Sets the number of internal fields for objects generated from |
| 4826 | * this template. |
| 4827 | */ |
| 4828 | void SetInternalFieldCount(int value); |
| 4829 | |
| 4830 | private: |
| 4831 | ObjectTemplate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4832 | static Local<ObjectTemplate> New(internal::Isolate* isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4833 | Local<FunctionTemplate> constructor); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4834 | friend class FunctionTemplate; |
| 4835 | }; |
| 4836 | |
| 4837 | |
| 4838 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4839 | * A Signature specifies which receiver is valid for a function. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4840 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4841 | class V8_EXPORT Signature : public Data { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4842 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4843 | static Local<Signature> New( |
| 4844 | Isolate* isolate, |
| 4845 | Local<FunctionTemplate> receiver = Local<FunctionTemplate>()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4846 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4847 | private: |
| 4848 | Signature(); |
| 4849 | }; |
| 4850 | |
| 4851 | |
| 4852 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4853 | * An AccessorSignature specifies which receivers are valid parameters |
| 4854 | * to an accessor callback. |
| 4855 | */ |
| 4856 | class V8_EXPORT AccessorSignature : public Data { |
| 4857 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4858 | static Local<AccessorSignature> New( |
| 4859 | Isolate* isolate, |
| 4860 | Local<FunctionTemplate> receiver = Local<FunctionTemplate>()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4861 | |
| 4862 | private: |
| 4863 | AccessorSignature(); |
| 4864 | }; |
| 4865 | |
| 4866 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4867 | // --- Extensions --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4868 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4869 | class V8_EXPORT ExternalOneByteStringResourceImpl |
| 4870 | : public String::ExternalOneByteStringResource { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4871 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4872 | ExternalOneByteStringResourceImpl() : data_(0), length_(0) {} |
| 4873 | ExternalOneByteStringResourceImpl(const char* data, size_t length) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4874 | : data_(data), length_(length) {} |
| 4875 | const char* data() const { return data_; } |
| 4876 | size_t length() const { return length_; } |
| 4877 | |
| 4878 | private: |
| 4879 | const char* data_; |
| 4880 | size_t length_; |
| 4881 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4882 | |
| 4883 | /** |
| 4884 | * Ignore |
| 4885 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4886 | class V8_EXPORT Extension { // NOLINT |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4887 | public: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4888 | // Note that the strings passed into this constructor must live as long |
| 4889 | // as the Extension itself. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4890 | Extension(const char* name, |
| 4891 | const char* source = 0, |
| 4892 | int dep_count = 0, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4893 | const char** deps = 0, |
| 4894 | int source_length = -1); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4895 | virtual ~Extension() { } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4896 | virtual v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate( |
| 4897 | v8::Isolate* isolate, v8::Local<v8::String> name) { |
| 4898 | return v8::Local<v8::FunctionTemplate>(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4899 | } |
| 4900 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4901 | const char* name() const { return name_; } |
| 4902 | size_t source_length() const { return source_length_; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4903 | const String::ExternalOneByteStringResource* source() const { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4904 | return &source_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4905 | int dependency_count() { return dep_count_; } |
| 4906 | const char** dependencies() { return deps_; } |
| 4907 | void set_auto_enable(bool value) { auto_enable_ = value; } |
| 4908 | bool auto_enable() { return auto_enable_; } |
| 4909 | |
| 4910 | private: |
| 4911 | const char* name_; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4912 | size_t source_length_; // expected to initialize before source_ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4913 | ExternalOneByteStringResourceImpl source_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4914 | int dep_count_; |
| 4915 | const char** deps_; |
| 4916 | bool auto_enable_; |
| 4917 | |
| 4918 | // Disallow copying and assigning. |
| 4919 | Extension(const Extension&); |
| 4920 | void operator=(const Extension&); |
| 4921 | }; |
| 4922 | |
| 4923 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4924 | void V8_EXPORT RegisterExtension(Extension* extension); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4925 | |
| 4926 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4927 | // --- Statics --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4928 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4929 | V8_INLINE Local<Primitive> Undefined(Isolate* isolate); |
| 4930 | V8_INLINE Local<Primitive> Null(Isolate* isolate); |
| 4931 | V8_INLINE Local<Boolean> True(Isolate* isolate); |
| 4932 | V8_INLINE Local<Boolean> False(Isolate* isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4933 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4934 | /** |
| 4935 | * A set of constraints that specifies the limits of the runtime's memory use. |
| 4936 | * You must set the heap size before initializing the VM - the size cannot be |
| 4937 | * adjusted after the VM is initialized. |
| 4938 | * |
| 4939 | * If you are using threads then you should hold the V8::Locker lock while |
| 4940 | * setting the stack limit and you must set a non-default stack limit separately |
| 4941 | * for each thread. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4942 | * |
| 4943 | * The arguments for set_max_semi_space_size, set_max_old_space_size, |
| 4944 | * set_max_executable_size, set_code_range_size specify limits in MB. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4945 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4946 | class V8_EXPORT ResourceConstraints { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4947 | public: |
| 4948 | ResourceConstraints(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4949 | |
| 4950 | /** |
| 4951 | * Configures the constraints with reasonable default values based on the |
| 4952 | * capabilities of the current device the VM is running on. |
| 4953 | * |
| 4954 | * \param physical_memory The total amount of physical memory on the current |
| 4955 | * device, in bytes. |
| 4956 | * \param virtual_memory_limit The amount of virtual memory on the current |
| 4957 | * device, in bytes, or zero, if there is no limit. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4958 | */ |
| 4959 | void ConfigureDefaults(uint64_t physical_memory, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4960 | uint64_t virtual_memory_limit); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4961 | |
| 4962 | int max_semi_space_size() const { return max_semi_space_size_; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4963 | void set_max_semi_space_size(int limit_in_mb) { |
| 4964 | max_semi_space_size_ = limit_in_mb; |
| 4965 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4966 | int max_old_space_size() const { return max_old_space_size_; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4967 | void set_max_old_space_size(int limit_in_mb) { |
| 4968 | max_old_space_size_ = limit_in_mb; |
| 4969 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4970 | int max_executable_size() const { return max_executable_size_; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4971 | void set_max_executable_size(int limit_in_mb) { |
| 4972 | max_executable_size_ = limit_in_mb; |
| 4973 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4974 | uint32_t* stack_limit() const { return stack_limit_; } |
| 4975 | // Sets an address beyond which the VM's stack may not grow. |
| 4976 | void set_stack_limit(uint32_t* value) { stack_limit_ = value; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4977 | size_t code_range_size() const { return code_range_size_; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4978 | void set_code_range_size(size_t limit_in_mb) { |
| 4979 | code_range_size_ = limit_in_mb; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4980 | } |
| 4981 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4982 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4983 | int max_semi_space_size_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4984 | int max_old_space_size_; |
Russell Brenner | 90bac25 | 2010-11-18 13:33:46 -0800 | [diff] [blame] | 4985 | int max_executable_size_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4986 | uint32_t* stack_limit_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4987 | size_t code_range_size_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4988 | }; |
| 4989 | |
| 4990 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4991 | // --- Exceptions --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4992 | |
| 4993 | |
| 4994 | typedef void (*FatalErrorCallback)(const char* location, const char* message); |
| 4995 | |
| 4996 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4997 | typedef void (*MessageCallback)(Local<Message> message, Local<Value> error); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4998 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4999 | // --- Tracing --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5000 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5001 | typedef void (*LogEventCallback)(const char* name, int event); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5002 | |
| 5003 | /** |
| 5004 | * Create new error objects by calling the corresponding error object |
| 5005 | * constructor with the message. |
| 5006 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5007 | class V8_EXPORT Exception { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5008 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5009 | static Local<Value> RangeError(Local<String> message); |
| 5010 | static Local<Value> ReferenceError(Local<String> message); |
| 5011 | static Local<Value> SyntaxError(Local<String> message); |
| 5012 | static Local<Value> TypeError(Local<String> message); |
| 5013 | static Local<Value> Error(Local<String> message); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5014 | |
| 5015 | /** |
| 5016 | * Creates an error message for the given exception. |
| 5017 | * Will try to reconstruct the original stack trace from the exception value, |
| 5018 | * or capture the current stack trace if not available. |
| 5019 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5020 | static Local<Message> CreateMessage(Isolate* isolate, Local<Value> exception); |
| 5021 | V8_DEPRECATED("Use version with an Isolate*", |
| 5022 | static Local<Message> CreateMessage(Local<Value> exception)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5023 | |
| 5024 | /** |
| 5025 | * Returns the original stack trace that was captured at the creation time |
| 5026 | * of a given exception, or an empty handle if not available. |
| 5027 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5028 | static Local<StackTrace> GetStackTrace(Local<Value> exception); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5029 | }; |
| 5030 | |
| 5031 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5032 | // --- Counters Callbacks --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5033 | |
| 5034 | typedef int* (*CounterLookupCallback)(const char* name); |
| 5035 | |
| 5036 | typedef void* (*CreateHistogramCallback)(const char* name, |
| 5037 | int min, |
| 5038 | int max, |
| 5039 | size_t buckets); |
| 5040 | |
| 5041 | typedef void (*AddHistogramSampleCallback)(void* histogram, int sample); |
| 5042 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5043 | // --- Memory Allocation Callback --- |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5044 | enum ObjectSpace { |
| 5045 | kObjectSpaceNewSpace = 1 << 0, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5046 | kObjectSpaceOldSpace = 1 << 1, |
| 5047 | kObjectSpaceCodeSpace = 1 << 2, |
| 5048 | kObjectSpaceMapSpace = 1 << 3, |
| 5049 | kObjectSpaceLoSpace = 1 << 4, |
| 5050 | kObjectSpaceAll = kObjectSpaceNewSpace | kObjectSpaceOldSpace | |
| 5051 | kObjectSpaceCodeSpace | kObjectSpaceMapSpace | |
| 5052 | kObjectSpaceLoSpace |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5053 | }; |
Iain Merrick | 9ac36c9 | 2010-09-13 15:29:50 +0100 | [diff] [blame] | 5054 | |
| 5055 | enum AllocationAction { |
| 5056 | kAllocationActionAllocate = 1 << 0, |
| 5057 | kAllocationActionFree = 1 << 1, |
| 5058 | kAllocationActionAll = kAllocationActionAllocate | kAllocationActionFree |
| 5059 | }; |
| 5060 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5061 | // --- Enter/Leave Script Callback --- |
| 5062 | typedef void (*BeforeCallEnteredCallback)(Isolate*); |
| 5063 | typedef void (*CallCompletedCallback)(Isolate*); |
| 5064 | typedef void (*DeprecatedCallCompletedCallback)(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5065 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5066 | // --- Promise Reject Callback --- |
| 5067 | enum PromiseRejectEvent { |
| 5068 | kPromiseRejectWithNoHandler = 0, |
| 5069 | kPromiseHandlerAddedAfterReject = 1 |
| 5070 | }; |
| 5071 | |
| 5072 | class PromiseRejectMessage { |
| 5073 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5074 | PromiseRejectMessage(Local<Promise> promise, PromiseRejectEvent event, |
| 5075 | Local<Value> value, Local<StackTrace> stack_trace) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5076 | : promise_(promise), |
| 5077 | event_(event), |
| 5078 | value_(value), |
| 5079 | stack_trace_(stack_trace) {} |
| 5080 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5081 | V8_INLINE Local<Promise> GetPromise() const { return promise_; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5082 | V8_INLINE PromiseRejectEvent GetEvent() const { return event_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5083 | V8_INLINE Local<Value> GetValue() const { return value_; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5084 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5085 | V8_DEPRECATED("Use v8::Exception::CreateMessage(GetValue())->GetStackTrace()", |
| 5086 | V8_INLINE Local<StackTrace> GetStackTrace() const) { |
| 5087 | return stack_trace_; |
| 5088 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5089 | |
| 5090 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5091 | Local<Promise> promise_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5092 | PromiseRejectEvent event_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5093 | Local<Value> value_; |
| 5094 | Local<StackTrace> stack_trace_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5095 | }; |
| 5096 | |
| 5097 | typedef void (*PromiseRejectCallback)(PromiseRejectMessage message); |
| 5098 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5099 | // --- Microtasks Callbacks --- |
| 5100 | typedef void (*MicrotasksCompletedCallback)(Isolate*); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5101 | typedef void (*MicrotaskCallback)(void* data); |
| 5102 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5103 | |
| 5104 | /** |
| 5105 | * Policy for running microtasks: |
| 5106 | * - explicit: microtasks are invoked with Isolate::RunMicrotasks() method; |
| 5107 | * - scoped: microtasks invocation is controlled by MicrotasksScope objects; |
| 5108 | * - auto: microtasks are invoked when the script call depth decrements |
| 5109 | * to zero. |
| 5110 | */ |
| 5111 | enum class MicrotasksPolicy { kExplicit, kScoped, kAuto }; |
| 5112 | |
| 5113 | |
| 5114 | /** |
| 5115 | * This scope is used to control microtasks when kScopeMicrotasksInvocation |
| 5116 | * is used on Isolate. In this mode every non-primitive call to V8 should be |
| 5117 | * done inside some MicrotasksScope. |
| 5118 | * Microtasks are executed when topmost MicrotasksScope marked as kRunMicrotasks |
| 5119 | * exits. |
| 5120 | * kDoNotRunMicrotasks should be used to annotate calls not intended to trigger |
| 5121 | * microtasks. |
| 5122 | */ |
| 5123 | class V8_EXPORT MicrotasksScope { |
| 5124 | public: |
| 5125 | enum Type { kRunMicrotasks, kDoNotRunMicrotasks }; |
| 5126 | |
| 5127 | MicrotasksScope(Isolate* isolate, Type type); |
| 5128 | ~MicrotasksScope(); |
| 5129 | |
| 5130 | /** |
| 5131 | * Runs microtasks if no kRunMicrotasks scope is currently active. |
| 5132 | */ |
| 5133 | static void PerformCheckpoint(Isolate* isolate); |
| 5134 | |
| 5135 | /** |
| 5136 | * Returns current depth of nested kRunMicrotasks scopes. |
| 5137 | */ |
| 5138 | static int GetCurrentDepth(Isolate* isolate); |
| 5139 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5140 | /** |
| 5141 | * Returns true while microtasks are being executed. |
| 5142 | */ |
| 5143 | static bool IsRunningMicrotasks(Isolate* isolate); |
| 5144 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5145 | private: |
| 5146 | internal::Isolate* const isolate_; |
| 5147 | bool run_; |
| 5148 | |
| 5149 | // Prevent copying. |
| 5150 | MicrotasksScope(const MicrotasksScope&); |
| 5151 | MicrotasksScope& operator=(const MicrotasksScope&); |
| 5152 | }; |
| 5153 | |
| 5154 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5155 | // --- Failed Access Check Callback --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5156 | typedef void (*FailedAccessCheckCallback)(Local<Object> target, |
| 5157 | AccessType type, |
| 5158 | Local<Value> data); |
| 5159 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5160 | // --- AllowCodeGenerationFromStrings callbacks --- |
| 5161 | |
| 5162 | /** |
| 5163 | * Callback to check if code generation from strings is allowed. See |
| 5164 | * Context::AllowCodeGenerationFromStrings. |
| 5165 | */ |
| 5166 | typedef bool (*AllowCodeGenerationFromStringsCallback)(Local<Context> context); |
| 5167 | |
| 5168 | // --- Garbage Collection Callbacks --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5169 | |
| 5170 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5171 | * Applications can register callback functions which will be called before and |
| 5172 | * after certain garbage collection operations. Allocations are not allowed in |
| 5173 | * the callback functions, you therefore cannot manipulate objects (set or |
| 5174 | * delete properties for example) since it is possible such operations will |
| 5175 | * result in the allocation of objects. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5176 | */ |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5177 | enum GCType { |
| 5178 | kGCTypeScavenge = 1 << 0, |
| 5179 | kGCTypeMarkSweepCompact = 1 << 1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5180 | kGCTypeIncrementalMarking = 1 << 2, |
| 5181 | kGCTypeProcessWeakCallbacks = 1 << 3, |
| 5182 | kGCTypeAll = kGCTypeScavenge | kGCTypeMarkSweepCompact | |
| 5183 | kGCTypeIncrementalMarking | kGCTypeProcessWeakCallbacks |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5184 | }; |
| 5185 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5186 | /** |
| 5187 | * GCCallbackFlags is used to notify additional information about the GC |
| 5188 | * callback. |
| 5189 | * - kGCCallbackFlagConstructRetainedObjectInfos: The GC callback is for |
| 5190 | * constructing retained object infos. |
| 5191 | * - kGCCallbackFlagForced: The GC callback is for a forced GC for testing. |
| 5192 | * - kGCCallbackFlagSynchronousPhantomCallbackProcessing: The GC callback |
| 5193 | * is called synchronously without getting posted to an idle task. |
| 5194 | * - kGCCallbackFlagCollectAllAvailableGarbage: The GC callback is called |
| 5195 | * in a phase where V8 is trying to collect all available garbage |
| 5196 | * (e.g., handling a low memory notification). |
| 5197 | */ |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5198 | enum GCCallbackFlags { |
| 5199 | kNoGCCallbackFlags = 0, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5200 | kGCCallbackFlagConstructRetainedObjectInfos = 1 << 1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5201 | kGCCallbackFlagForced = 1 << 2, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5202 | kGCCallbackFlagSynchronousPhantomCallbackProcessing = 1 << 3, |
| 5203 | kGCCallbackFlagCollectAllAvailableGarbage = 1 << 4, |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5204 | }; |
| 5205 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5206 | typedef void (*GCCallback)(GCType type, GCCallbackFlags flags); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5207 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5208 | typedef void (*InterruptCallback)(Isolate* isolate, void* data); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5209 | |
| 5210 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5211 | /** |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5212 | * Collection of V8 heap information. |
| 5213 | * |
| 5214 | * Instances of this class can be passed to v8::V8::HeapStatistics to |
| 5215 | * get heap statistics from V8. |
| 5216 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5217 | class V8_EXPORT HeapStatistics { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5218 | public: |
| 5219 | HeapStatistics(); |
| 5220 | size_t total_heap_size() { return total_heap_size_; } |
Russell Brenner | 90bac25 | 2010-11-18 13:33:46 -0800 | [diff] [blame] | 5221 | size_t total_heap_size_executable() { return total_heap_size_executable_; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5222 | size_t total_physical_size() { return total_physical_size_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5223 | size_t total_available_size() { return total_available_size_; } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5224 | size_t used_heap_size() { return used_heap_size_; } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5225 | size_t heap_size_limit() { return heap_size_limit_; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5226 | size_t malloced_memory() { return malloced_memory_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5227 | size_t does_zap_garbage() { return does_zap_garbage_; } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5228 | |
| 5229 | private: |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5230 | size_t total_heap_size_; |
Russell Brenner | 90bac25 | 2010-11-18 13:33:46 -0800 | [diff] [blame] | 5231 | size_t total_heap_size_executable_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5232 | size_t total_physical_size_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5233 | size_t total_available_size_; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5234 | size_t used_heap_size_; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5235 | size_t heap_size_limit_; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5236 | size_t malloced_memory_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5237 | bool does_zap_garbage_; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5238 | |
| 5239 | friend class V8; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5240 | friend class Isolate; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5241 | }; |
| 5242 | |
| 5243 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5244 | class V8_EXPORT HeapSpaceStatistics { |
| 5245 | public: |
| 5246 | HeapSpaceStatistics(); |
| 5247 | const char* space_name() { return space_name_; } |
| 5248 | size_t space_size() { return space_size_; } |
| 5249 | size_t space_used_size() { return space_used_size_; } |
| 5250 | size_t space_available_size() { return space_available_size_; } |
| 5251 | size_t physical_space_size() { return physical_space_size_; } |
| 5252 | |
| 5253 | private: |
| 5254 | const char* space_name_; |
| 5255 | size_t space_size_; |
| 5256 | size_t space_used_size_; |
| 5257 | size_t space_available_size_; |
| 5258 | size_t physical_space_size_; |
| 5259 | |
| 5260 | friend class Isolate; |
| 5261 | }; |
| 5262 | |
| 5263 | |
| 5264 | class V8_EXPORT HeapObjectStatistics { |
| 5265 | public: |
| 5266 | HeapObjectStatistics(); |
| 5267 | const char* object_type() { return object_type_; } |
| 5268 | const char* object_sub_type() { return object_sub_type_; } |
| 5269 | size_t object_count() { return object_count_; } |
| 5270 | size_t object_size() { return object_size_; } |
| 5271 | |
| 5272 | private: |
| 5273 | const char* object_type_; |
| 5274 | const char* object_sub_type_; |
| 5275 | size_t object_count_; |
| 5276 | size_t object_size_; |
| 5277 | |
| 5278 | friend class Isolate; |
| 5279 | }; |
| 5280 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5281 | class V8_EXPORT HeapCodeStatistics { |
| 5282 | public: |
| 5283 | HeapCodeStatistics(); |
| 5284 | size_t code_and_metadata_size() { return code_and_metadata_size_; } |
| 5285 | size_t bytecode_and_metadata_size() { return bytecode_and_metadata_size_; } |
| 5286 | |
| 5287 | private: |
| 5288 | size_t code_and_metadata_size_; |
| 5289 | size_t bytecode_and_metadata_size_; |
| 5290 | |
| 5291 | friend class Isolate; |
| 5292 | }; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5293 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5294 | class RetainedObjectInfo; |
| 5295 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5296 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5297 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5298 | * FunctionEntryHook is the type of the profile entry hook called at entry to |
| 5299 | * any generated function when function-level profiling is enabled. |
| 5300 | * |
| 5301 | * \param function the address of the function that's being entered. |
| 5302 | * \param return_addr_location points to a location on stack where the machine |
| 5303 | * return address resides. This can be used to identify the caller of |
| 5304 | * \p function, and/or modified to divert execution when \p function exits. |
| 5305 | * |
| 5306 | * \note the entry hook must not cause garbage collection. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5307 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5308 | typedef void (*FunctionEntryHook)(uintptr_t function, |
| 5309 | uintptr_t return_addr_location); |
| 5310 | |
| 5311 | /** |
| 5312 | * A JIT code event is issued each time code is added, moved or removed. |
| 5313 | * |
| 5314 | * \note removal events are not currently issued. |
| 5315 | */ |
| 5316 | struct JitCodeEvent { |
| 5317 | enum EventType { |
| 5318 | CODE_ADDED, |
| 5319 | CODE_MOVED, |
| 5320 | CODE_REMOVED, |
| 5321 | CODE_ADD_LINE_POS_INFO, |
| 5322 | CODE_START_LINE_INFO_RECORDING, |
| 5323 | CODE_END_LINE_INFO_RECORDING |
| 5324 | }; |
| 5325 | // Definition of the code position type. The "POSITION" type means the place |
| 5326 | // in the source code which are of interest when making stack traces to |
| 5327 | // pin-point the source location of a stack frame as close as possible. |
| 5328 | // The "STATEMENT_POSITION" means the place at the beginning of each |
| 5329 | // statement, and is used to indicate possible break locations. |
| 5330 | enum PositionType { POSITION, STATEMENT_POSITION }; |
| 5331 | |
| 5332 | // Type of event. |
| 5333 | EventType type; |
| 5334 | // Start of the instructions. |
| 5335 | void* code_start; |
| 5336 | // Size of the instructions. |
| 5337 | size_t code_len; |
| 5338 | // Script info for CODE_ADDED event. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5339 | Local<UnboundScript> script; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5340 | // User-defined data for *_LINE_INFO_* event. It's used to hold the source |
| 5341 | // code line information which is returned from the |
| 5342 | // CODE_START_LINE_INFO_RECORDING event. And it's passed to subsequent |
| 5343 | // CODE_ADD_LINE_POS_INFO and CODE_END_LINE_INFO_RECORDING events. |
| 5344 | void* user_data; |
| 5345 | |
| 5346 | struct name_t { |
| 5347 | // Name of the object associated with the code, note that the string is not |
| 5348 | // zero-terminated. |
| 5349 | const char* str; |
| 5350 | // Number of chars in str. |
| 5351 | size_t len; |
| 5352 | }; |
| 5353 | |
| 5354 | struct line_info_t { |
| 5355 | // PC offset |
| 5356 | size_t offset; |
| 5357 | // Code postion |
| 5358 | size_t pos; |
| 5359 | // The position type. |
| 5360 | PositionType position_type; |
| 5361 | }; |
| 5362 | |
| 5363 | union { |
| 5364 | // Only valid for CODE_ADDED. |
| 5365 | struct name_t name; |
| 5366 | |
| 5367 | // Only valid for CODE_ADD_LINE_POS_INFO |
| 5368 | struct line_info_t line_info; |
| 5369 | |
| 5370 | // New location of instructions. Only valid for CODE_MOVED. |
| 5371 | void* new_code_start; |
| 5372 | }; |
| 5373 | }; |
| 5374 | |
| 5375 | /** |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5376 | * Option flags passed to the SetRAILMode function. |
| 5377 | * See documentation https://developers.google.com/web/tools/chrome-devtools/ |
| 5378 | * profile/evaluate-performance/rail |
| 5379 | */ |
| 5380 | enum RAILMode { |
| 5381 | // Default performance mode: V8 will optimize for both latency and |
| 5382 | // throughput in this mode. |
| 5383 | PERFORMANCE_DEFAULT, |
| 5384 | // Response performance mode: In this mode very low virtual machine latency |
| 5385 | // is provided. V8 will try to avoid JavaScript execution interruptions. |
| 5386 | // Throughput may be throttled. |
| 5387 | PERFORMANCE_RESPONSE, |
| 5388 | // Animation performance mode: In this mode low virtual machine latency is |
| 5389 | // provided. V8 will try to avoid as many JavaScript execution interruptions |
| 5390 | // as possible. Throughput may be throttled |
| 5391 | PERFORMANCE_ANIMATION, |
| 5392 | // Idle performance mode: The embedder is idle. V8 can complete deferred work |
| 5393 | // in this mode. |
| 5394 | PERFORMANCE_IDLE, |
| 5395 | // Load performance mode: In this mode high throughput is provided. V8 may |
| 5396 | // turn off latency optimizations. |
| 5397 | PERFORMANCE_LOAD |
| 5398 | }; |
| 5399 | |
| 5400 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5401 | * Option flags passed to the SetJitCodeEventHandler function. |
| 5402 | */ |
| 5403 | enum JitCodeEventOptions { |
| 5404 | kJitCodeEventDefault = 0, |
| 5405 | // Generate callbacks for already existent code. |
| 5406 | kJitCodeEventEnumExisting = 1 |
| 5407 | }; |
| 5408 | |
| 5409 | |
| 5410 | /** |
| 5411 | * Callback function passed to SetJitCodeEventHandler. |
| 5412 | * |
| 5413 | * \param event code add, move or removal event. |
| 5414 | */ |
| 5415 | typedef void (*JitCodeEventHandler)(const JitCodeEvent* event); |
| 5416 | |
| 5417 | |
| 5418 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5419 | * Interface for iterating through all external resources in the heap. |
| 5420 | */ |
| 5421 | class V8_EXPORT ExternalResourceVisitor { // NOLINT |
| 5422 | public: |
| 5423 | virtual ~ExternalResourceVisitor() {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5424 | virtual void VisitExternalString(Local<String> string) {} |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5425 | }; |
| 5426 | |
| 5427 | |
| 5428 | /** |
| 5429 | * Interface for iterating through all the persistent handles in the heap. |
| 5430 | */ |
| 5431 | class V8_EXPORT PersistentHandleVisitor { // NOLINT |
| 5432 | public: |
| 5433 | virtual ~PersistentHandleVisitor() {} |
| 5434 | virtual void VisitPersistentHandle(Persistent<Value>* value, |
| 5435 | uint16_t class_id) {} |
| 5436 | }; |
| 5437 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5438 | /** |
| 5439 | * Memory pressure level for the MemoryPressureNotification. |
| 5440 | * kNone hints V8 that there is no memory pressure. |
| 5441 | * kModerate hints V8 to speed up incremental garbage collection at the cost of |
| 5442 | * of higher latency due to garbage collection pauses. |
| 5443 | * kCritical hints V8 to free memory as soon as possible. Garbage collection |
| 5444 | * pauses at this level will be large. |
| 5445 | */ |
| 5446 | enum class MemoryPressureLevel { kNone, kModerate, kCritical }; |
| 5447 | |
| 5448 | /** |
| 5449 | * Interface for tracing through the embedder heap. During the v8 garbage |
| 5450 | * collection, v8 collects hidden fields of all potential wrappers, and at the |
| 5451 | * end of its marking phase iterates the collection and asks the embedder to |
| 5452 | * trace through its heap and call PersistentBase::RegisterExternalReference on |
| 5453 | * each js object reachable from any of the given wrappers. |
| 5454 | * |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5455 | * Before the first call to the TraceWrappersFrom function TracePrologue will be |
| 5456 | * called. When the garbage collection cycle is finished, TraceEpilogue will be |
| 5457 | * called. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5458 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5459 | class V8_EXPORT EmbedderHeapTracer { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5460 | public: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5461 | enum ForceCompletionAction { FORCE_COMPLETION, DO_NOT_FORCE_COMPLETION }; |
| 5462 | struct AdvanceTracingActions { |
| 5463 | explicit AdvanceTracingActions(ForceCompletionAction force_completion_) |
| 5464 | : force_completion(force_completion_) {} |
| 5465 | |
| 5466 | ForceCompletionAction force_completion; |
| 5467 | }; |
| 5468 | /** |
| 5469 | * V8 will call this method with internal fields of found wrappers. |
| 5470 | * Embedder is expected to store them in it's marking deque and trace |
| 5471 | * reachable wrappers from them when asked by AdvanceTracing method. |
| 5472 | */ |
| 5473 | virtual void RegisterV8References( |
| 5474 | const std::vector<std::pair<void*, void*> >& internal_fields) = 0; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5475 | /** |
| 5476 | * V8 will call this method at the beginning of the gc cycle. |
| 5477 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5478 | virtual void TracePrologue() = 0; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5479 | /** |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5480 | * Embedder is expected to trace its heap starting from wrappers reported by |
| 5481 | * RegisterV8References method, and call |
| 5482 | * PersistentBase::RegisterExternalReference() on all reachable wrappers. |
| 5483 | * Embedder is expected to stop tracing by the given deadline. |
| 5484 | * |
| 5485 | * Returns true if there is still work to do. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5486 | */ |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5487 | virtual bool AdvanceTracing(double deadline_in_ms, |
| 5488 | AdvanceTracingActions actions) = 0; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5489 | /** |
| 5490 | * V8 will call this method at the end of the gc cycle. Allocation is *not* |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5491 | * allowed in the TraceEpilogue. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5492 | */ |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5493 | virtual void TraceEpilogue() = 0; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5494 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5495 | /** |
| 5496 | * Let embedder know v8 entered final marking pause (no more incremental steps |
| 5497 | * will follow). |
| 5498 | */ |
| 5499 | virtual void EnterFinalPause() {} |
| 5500 | |
| 5501 | /** |
| 5502 | * Throw away all intermediate data and reset to the initial state. |
| 5503 | */ |
| 5504 | virtual void AbortTracing() {} |
| 5505 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5506 | protected: |
| 5507 | virtual ~EmbedderHeapTracer() = default; |
| 5508 | }; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5509 | |
| 5510 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5511 | * Isolate represents an isolated instance of the V8 engine. V8 isolates have |
| 5512 | * completely separate states. Objects from one isolate must not be used in |
| 5513 | * other isolates. The embedder can create multiple isolates and use them in |
| 5514 | * parallel in multiple threads. An isolate can be entered by at most one |
| 5515 | * thread at any given time. The Locker/Unlocker API must be used to |
| 5516 | * synchronize. |
| 5517 | */ |
| 5518 | class V8_EXPORT Isolate { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5519 | public: |
| 5520 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5521 | * Initial configuration parameters for a new Isolate. |
| 5522 | */ |
| 5523 | struct CreateParams { |
| 5524 | CreateParams() |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5525 | : entry_hook(nullptr), |
| 5526 | code_event_handler(nullptr), |
| 5527 | snapshot_blob(nullptr), |
| 5528 | counter_lookup_callback(nullptr), |
| 5529 | create_histogram_callback(nullptr), |
| 5530 | add_histogram_sample_callback(nullptr), |
| 5531 | array_buffer_allocator(nullptr), |
| 5532 | external_references(nullptr) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5533 | |
| 5534 | /** |
| 5535 | * The optional entry_hook allows the host application to provide the |
| 5536 | * address of a function that's invoked on entry to every V8-generated |
| 5537 | * function. Note that entry_hook is invoked at the very start of each |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5538 | * generated function. Furthermore, if an entry_hook is given, V8 will |
| 5539 | * not use a snapshot, including custom snapshots. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5540 | */ |
| 5541 | FunctionEntryHook entry_hook; |
| 5542 | |
| 5543 | /** |
| 5544 | * Allows the host application to provide the address of a function that is |
| 5545 | * notified each time code is added, moved or removed. |
| 5546 | */ |
| 5547 | JitCodeEventHandler code_event_handler; |
| 5548 | |
| 5549 | /** |
| 5550 | * ResourceConstraints to use for the new Isolate. |
| 5551 | */ |
| 5552 | ResourceConstraints constraints; |
| 5553 | |
| 5554 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5555 | * Explicitly specify a startup snapshot blob. The embedder owns the blob. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5556 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5557 | StartupData* snapshot_blob; |
| 5558 | |
| 5559 | |
| 5560 | /** |
| 5561 | * Enables the host application to provide a mechanism for recording |
| 5562 | * statistics counters. |
| 5563 | */ |
| 5564 | CounterLookupCallback counter_lookup_callback; |
| 5565 | |
| 5566 | /** |
| 5567 | * Enables the host application to provide a mechanism for recording |
| 5568 | * histograms. The CreateHistogram function returns a |
| 5569 | * histogram which will later be passed to the AddHistogramSample |
| 5570 | * function. |
| 5571 | */ |
| 5572 | CreateHistogramCallback create_histogram_callback; |
| 5573 | AddHistogramSampleCallback add_histogram_sample_callback; |
| 5574 | |
| 5575 | /** |
| 5576 | * The ArrayBuffer::Allocator to use for allocating and freeing the backing |
| 5577 | * store of ArrayBuffers. |
| 5578 | */ |
| 5579 | ArrayBuffer::Allocator* array_buffer_allocator; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5580 | |
| 5581 | /** |
| 5582 | * Specifies an optional nullptr-terminated array of raw addresses in the |
| 5583 | * embedder that V8 can match against during serialization and use for |
| 5584 | * deserialization. This array and its content must stay valid for the |
| 5585 | * entire lifetime of the isolate. |
| 5586 | */ |
| 5587 | intptr_t* external_references; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5588 | }; |
| 5589 | |
| 5590 | |
| 5591 | /** |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5592 | * Stack-allocated class which sets the isolate for all operations |
| 5593 | * executed within a local scope. |
| 5594 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5595 | class V8_EXPORT Scope { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5596 | public: |
| 5597 | explicit Scope(Isolate* isolate) : isolate_(isolate) { |
| 5598 | isolate->Enter(); |
| 5599 | } |
| 5600 | |
| 5601 | ~Scope() { isolate_->Exit(); } |
| 5602 | |
| 5603 | private: |
| 5604 | Isolate* const isolate_; |
| 5605 | |
| 5606 | // Prevent copying of Scope objects. |
| 5607 | Scope(const Scope&); |
| 5608 | Scope& operator=(const Scope&); |
| 5609 | }; |
| 5610 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5611 | |
| 5612 | /** |
| 5613 | * Assert that no Javascript code is invoked. |
| 5614 | */ |
| 5615 | class V8_EXPORT DisallowJavascriptExecutionScope { |
| 5616 | public: |
| 5617 | enum OnFailure { CRASH_ON_FAILURE, THROW_ON_FAILURE }; |
| 5618 | |
| 5619 | DisallowJavascriptExecutionScope(Isolate* isolate, OnFailure on_failure); |
| 5620 | ~DisallowJavascriptExecutionScope(); |
| 5621 | |
| 5622 | private: |
| 5623 | bool on_failure_; |
| 5624 | void* internal_; |
| 5625 | |
| 5626 | // Prevent copying of Scope objects. |
| 5627 | DisallowJavascriptExecutionScope(const DisallowJavascriptExecutionScope&); |
| 5628 | DisallowJavascriptExecutionScope& operator=( |
| 5629 | const DisallowJavascriptExecutionScope&); |
| 5630 | }; |
| 5631 | |
| 5632 | |
| 5633 | /** |
| 5634 | * Introduce exception to DisallowJavascriptExecutionScope. |
| 5635 | */ |
| 5636 | class V8_EXPORT AllowJavascriptExecutionScope { |
| 5637 | public: |
| 5638 | explicit AllowJavascriptExecutionScope(Isolate* isolate); |
| 5639 | ~AllowJavascriptExecutionScope(); |
| 5640 | |
| 5641 | private: |
| 5642 | void* internal_throws_; |
| 5643 | void* internal_assert_; |
| 5644 | |
| 5645 | // Prevent copying of Scope objects. |
| 5646 | AllowJavascriptExecutionScope(const AllowJavascriptExecutionScope&); |
| 5647 | AllowJavascriptExecutionScope& operator=( |
| 5648 | const AllowJavascriptExecutionScope&); |
| 5649 | }; |
| 5650 | |
| 5651 | /** |
| 5652 | * Do not run microtasks while this scope is active, even if microtasks are |
| 5653 | * automatically executed otherwise. |
| 5654 | */ |
| 5655 | class V8_EXPORT SuppressMicrotaskExecutionScope { |
| 5656 | public: |
| 5657 | explicit SuppressMicrotaskExecutionScope(Isolate* isolate); |
| 5658 | ~SuppressMicrotaskExecutionScope(); |
| 5659 | |
| 5660 | private: |
| 5661 | internal::Isolate* isolate_; |
| 5662 | |
| 5663 | // Prevent copying of Scope objects. |
| 5664 | SuppressMicrotaskExecutionScope(const SuppressMicrotaskExecutionScope&); |
| 5665 | SuppressMicrotaskExecutionScope& operator=( |
| 5666 | const SuppressMicrotaskExecutionScope&); |
| 5667 | }; |
| 5668 | |
| 5669 | /** |
| 5670 | * Types of garbage collections that can be requested via |
| 5671 | * RequestGarbageCollectionForTesting. |
| 5672 | */ |
| 5673 | enum GarbageCollectionType { |
| 5674 | kFullGarbageCollection, |
| 5675 | kMinorGarbageCollection |
| 5676 | }; |
| 5677 | |
| 5678 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5679 | * Features reported via the SetUseCounterCallback callback. Do not change |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5680 | * assigned numbers of existing items; add new features to the end of this |
| 5681 | * list. |
| 5682 | */ |
| 5683 | enum UseCounterFeature { |
| 5684 | kUseAsm = 0, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5685 | kBreakIterator = 1, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5686 | kLegacyConst = 2, |
| 5687 | kMarkDequeOverflow = 3, |
| 5688 | kStoreBufferOverflow = 4, |
| 5689 | kSlotsBufferOverflow = 5, |
| 5690 | kObjectObserve = 6, |
| 5691 | kForcedGC = 7, |
| 5692 | kSloppyMode = 8, |
| 5693 | kStrictMode = 9, |
| 5694 | kStrongMode = 10, |
| 5695 | kRegExpPrototypeStickyGetter = 11, |
| 5696 | kRegExpPrototypeToString = 12, |
| 5697 | kRegExpPrototypeUnicodeGetter = 13, |
| 5698 | kIntlV8Parse = 14, |
| 5699 | kIntlPattern = 15, |
| 5700 | kIntlResolved = 16, |
| 5701 | kPromiseChain = 17, |
| 5702 | kPromiseAccept = 18, |
| 5703 | kPromiseDefer = 19, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5704 | kHtmlCommentInExternalScript = 20, |
| 5705 | kHtmlComment = 21, |
| 5706 | kSloppyModeBlockScopedFunctionRedefinition = 22, |
| 5707 | kForInInitializer = 23, |
| 5708 | kArrayProtectorDirtied = 24, |
| 5709 | kArraySpeciesModified = 25, |
| 5710 | kArrayPrototypeConstructorModified = 26, |
| 5711 | kArrayInstanceProtoModified = 27, |
| 5712 | kArrayInstanceConstructorModified = 28, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5713 | kLegacyFunctionDeclaration = 29, |
| 5714 | kRegExpPrototypeSourceGetter = 30, |
| 5715 | kRegExpPrototypeOldFlagGetter = 31, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5716 | kDecimalWithLeadingZeroInStrictMode = 32, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5717 | kLegacyDateParser = 33, |
| 5718 | kDefineGetterOrSetterWouldThrow = 34, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5719 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5720 | // If you add new values here, you'll also need to update Chromium's: |
| 5721 | // UseCounter.h, V8PerIsolateData.cpp, histograms.xml |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5722 | kUseCounterFeatureCount // This enum value must be last. |
| 5723 | }; |
| 5724 | |
| 5725 | typedef void (*UseCounterCallback)(Isolate* isolate, |
| 5726 | UseCounterFeature feature); |
| 5727 | |
| 5728 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5729 | /** |
| 5730 | * Creates a new isolate. Does not change the currently entered |
| 5731 | * isolate. |
| 5732 | * |
| 5733 | * When an isolate is no longer used its resources should be freed |
| 5734 | * by calling Dispose(). Using the delete operator is not allowed. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5735 | * |
| 5736 | * V8::Initialize() must have run prior to this. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5737 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5738 | static Isolate* New(const CreateParams& params); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5739 | |
| 5740 | /** |
| 5741 | * Returns the entered isolate for the current thread or NULL in |
| 5742 | * case there is no current isolate. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5743 | * |
| 5744 | * This method must not be invoked before V8::Initialize() was invoked. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5745 | */ |
| 5746 | static Isolate* GetCurrent(); |
| 5747 | |
| 5748 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5749 | * Custom callback used by embedders to help V8 determine if it should abort |
| 5750 | * when it throws and no internal handler is predicted to catch the |
| 5751 | * exception. If --abort-on-uncaught-exception is used on the command line, |
| 5752 | * then V8 will abort if either: |
| 5753 | * - no custom callback is set. |
| 5754 | * - the custom callback set returns true. |
| 5755 | * Otherwise, the custom callback will not be called and V8 will not abort. |
| 5756 | */ |
| 5757 | typedef bool (*AbortOnUncaughtExceptionCallback)(Isolate*); |
| 5758 | void SetAbortOnUncaughtExceptionCallback( |
| 5759 | AbortOnUncaughtExceptionCallback callback); |
| 5760 | |
| 5761 | /** |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5762 | * Optional notification that the system is running low on memory. |
| 5763 | * V8 uses these notifications to guide heuristics. |
| 5764 | * It is allowed to call this function from another thread while |
| 5765 | * the isolate is executing long running JavaScript code. |
| 5766 | */ |
| 5767 | void MemoryPressureNotification(MemoryPressureLevel level); |
| 5768 | |
| 5769 | /** |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5770 | * Methods below this point require holding a lock (using Locker) in |
| 5771 | * a multi-threaded environment. |
| 5772 | */ |
| 5773 | |
| 5774 | /** |
| 5775 | * Sets this isolate as the entered one for the current thread. |
| 5776 | * Saves the previously entered one (if any), so that it can be |
| 5777 | * restored when exiting. Re-entering an isolate is allowed. |
| 5778 | */ |
| 5779 | void Enter(); |
| 5780 | |
| 5781 | /** |
| 5782 | * Exits this isolate by restoring the previously entered one in the |
| 5783 | * current thread. The isolate may still stay the same, if it was |
| 5784 | * entered more than once. |
| 5785 | * |
| 5786 | * Requires: this == Isolate::GetCurrent(). |
| 5787 | */ |
| 5788 | void Exit(); |
| 5789 | |
| 5790 | /** |
| 5791 | * Disposes the isolate. The isolate must not be entered by any |
| 5792 | * thread to be disposable. |
| 5793 | */ |
| 5794 | void Dispose(); |
| 5795 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5796 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5797 | * Discards all V8 thread-specific data for the Isolate. Should be used |
| 5798 | * if a thread is terminating and it has used an Isolate that will outlive |
| 5799 | * the thread -- all thread-specific data for an Isolate is discarded when |
| 5800 | * an Isolate is disposed so this call is pointless if an Isolate is about |
| 5801 | * to be Disposed. |
| 5802 | */ |
| 5803 | void DiscardThreadSpecificMetadata(); |
| 5804 | |
| 5805 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5806 | * Associate embedder-specific data with the isolate. |slot| has to be |
| 5807 | * between 0 and GetNumberOfDataSlots() - 1. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5808 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5809 | V8_INLINE void SetData(uint32_t slot, void* data); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5810 | |
| 5811 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5812 | * Retrieve embedder-specific data from the isolate. |
| 5813 | * Returns NULL if SetData has never been called for the given |slot|. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5814 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5815 | V8_INLINE void* GetData(uint32_t slot); |
| 5816 | |
| 5817 | /** |
| 5818 | * Returns the maximum number of available embedder data slots. Valid slots |
| 5819 | * are in the range of 0 - GetNumberOfDataSlots() - 1. |
| 5820 | */ |
| 5821 | V8_INLINE static uint32_t GetNumberOfDataSlots(); |
| 5822 | |
| 5823 | /** |
| 5824 | * Get statistics about the heap memory usage. |
| 5825 | */ |
| 5826 | void GetHeapStatistics(HeapStatistics* heap_statistics); |
| 5827 | |
| 5828 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5829 | * Returns the number of spaces in the heap. |
| 5830 | */ |
| 5831 | size_t NumberOfHeapSpaces(); |
| 5832 | |
| 5833 | /** |
| 5834 | * Get the memory usage of a space in the heap. |
| 5835 | * |
| 5836 | * \param space_statistics The HeapSpaceStatistics object to fill in |
| 5837 | * statistics. |
| 5838 | * \param index The index of the space to get statistics from, which ranges |
| 5839 | * from 0 to NumberOfHeapSpaces() - 1. |
| 5840 | * \returns true on success. |
| 5841 | */ |
| 5842 | bool GetHeapSpaceStatistics(HeapSpaceStatistics* space_statistics, |
| 5843 | size_t index); |
| 5844 | |
| 5845 | /** |
| 5846 | * Returns the number of types of objects tracked in the heap at GC. |
| 5847 | */ |
| 5848 | size_t NumberOfTrackedHeapObjectTypes(); |
| 5849 | |
| 5850 | /** |
| 5851 | * Get statistics about objects in the heap. |
| 5852 | * |
| 5853 | * \param object_statistics The HeapObjectStatistics object to fill in |
| 5854 | * statistics of objects of given type, which were live in the previous GC. |
| 5855 | * \param type_index The index of the type of object to fill details about, |
| 5856 | * which ranges from 0 to NumberOfTrackedHeapObjectTypes() - 1. |
| 5857 | * \returns true on success. |
| 5858 | */ |
| 5859 | bool GetHeapObjectStatisticsAtLastGC(HeapObjectStatistics* object_statistics, |
| 5860 | size_t type_index); |
| 5861 | |
| 5862 | /** |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5863 | * Get statistics about code and its metadata in the heap. |
| 5864 | * |
| 5865 | * \param object_statistics The HeapCodeStatistics object to fill in |
| 5866 | * statistics of code, bytecode and their metadata. |
| 5867 | * \returns true on success. |
| 5868 | */ |
| 5869 | bool GetHeapCodeAndMetadataStatistics(HeapCodeStatistics* object_statistics); |
| 5870 | |
| 5871 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5872 | * Get a call stack sample from the isolate. |
| 5873 | * \param state Execution state. |
| 5874 | * \param frames Caller allocated buffer to store stack frames. |
| 5875 | * \param frames_limit Maximum number of frames to capture. The buffer must |
| 5876 | * be large enough to hold the number of frames. |
| 5877 | * \param sample_info The sample info is filled up by the function |
| 5878 | * provides number of actual captured stack frames and |
| 5879 | * the current VM state. |
| 5880 | * \note GetStackSample should only be called when the JS thread is paused or |
| 5881 | * interrupted. Otherwise the behavior is undefined. |
| 5882 | */ |
| 5883 | void GetStackSample(const RegisterState& state, void** frames, |
| 5884 | size_t frames_limit, SampleInfo* sample_info); |
| 5885 | |
| 5886 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5887 | * Adjusts the amount of registered external memory. Used to give V8 an |
| 5888 | * indication of the amount of externally allocated memory that is kept alive |
| 5889 | * by JavaScript objects. V8 uses this to decide when to perform global |
| 5890 | * garbage collections. Registering externally allocated memory will trigger |
| 5891 | * global garbage collections more often than it would otherwise in an attempt |
| 5892 | * to garbage collect the JavaScript objects that keep the externally |
| 5893 | * allocated memory alive. |
| 5894 | * |
| 5895 | * \param change_in_bytes the change in externally allocated memory that is |
| 5896 | * kept alive by JavaScript objects. |
| 5897 | * \returns the adjusted value. |
| 5898 | */ |
| 5899 | V8_INLINE int64_t |
| 5900 | AdjustAmountOfExternalAllocatedMemory(int64_t change_in_bytes); |
| 5901 | |
| 5902 | /** |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5903 | * Returns the number of phantom handles without callbacks that were reset |
| 5904 | * by the garbage collector since the last call to this function. |
| 5905 | */ |
| 5906 | size_t NumberOfPhantomHandleResetsSinceLastCall(); |
| 5907 | |
| 5908 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5909 | * Returns heap profiler for this isolate. Will return NULL until the isolate |
| 5910 | * is initialized. |
| 5911 | */ |
| 5912 | HeapProfiler* GetHeapProfiler(); |
| 5913 | |
| 5914 | /** |
| 5915 | * Returns CPU profiler for this isolate. Will return NULL unless the isolate |
| 5916 | * is initialized. It is the embedder's responsibility to stop all CPU |
| 5917 | * profiling activities if it has started any. |
| 5918 | */ |
| 5919 | CpuProfiler* GetCpuProfiler(); |
| 5920 | |
| 5921 | /** Returns true if this isolate has a current context. */ |
| 5922 | bool InContext(); |
| 5923 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5924 | /** |
| 5925 | * Returns the context of the currently running JavaScript, or the context |
| 5926 | * on the top of the stack if no JavaScript is running. |
| 5927 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5928 | Local<Context> GetCurrentContext(); |
| 5929 | |
| 5930 | /** |
| 5931 | * Returns the context of the calling JavaScript code. That is the |
| 5932 | * context of the top-most JavaScript frame. If there are no |
| 5933 | * JavaScript frames an empty handle is returned. |
| 5934 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5935 | V8_DEPRECATE_SOON( |
| 5936 | "Calling context concept is not compatible with tail calls, and will be " |
| 5937 | "removed.", |
| 5938 | Local<Context> GetCallingContext()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5939 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5940 | /** Returns the last context entered through V8's C++ API. */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5941 | Local<Context> GetEnteredContext(); |
| 5942 | |
| 5943 | /** |
| 5944 | * Schedules an exception to be thrown when returning to JavaScript. When an |
| 5945 | * exception has been scheduled it is illegal to invoke any JavaScript |
| 5946 | * operation; the caller must return immediately and only after the exception |
| 5947 | * has been handled does it become legal to invoke JavaScript operations. |
| 5948 | */ |
| 5949 | Local<Value> ThrowException(Local<Value> exception); |
| 5950 | |
| 5951 | /** |
| 5952 | * Allows the host application to group objects together. If one |
| 5953 | * object in the group is alive, all objects in the group are alive. |
| 5954 | * After each garbage collection, object groups are removed. It is |
| 5955 | * intended to be used in the before-garbage-collection callback |
| 5956 | * function, for instance to simulate DOM tree connections among JS |
| 5957 | * wrapper objects. Object groups for all dependent handles need to |
| 5958 | * be provided for kGCTypeMarkSweepCompact collections, for all other |
| 5959 | * garbage collection types it is sufficient to provide object groups |
| 5960 | * for partially dependent handles only. |
| 5961 | */ |
| 5962 | template<typename T> void SetObjectGroupId(const Persistent<T>& object, |
| 5963 | UniqueId id); |
| 5964 | |
| 5965 | /** |
| 5966 | * Allows the host application to declare implicit references from an object |
| 5967 | * group to an object. If the objects of the object group are alive, the child |
| 5968 | * object is alive too. After each garbage collection, all implicit references |
| 5969 | * are removed. It is intended to be used in the before-garbage-collection |
| 5970 | * callback function. |
| 5971 | */ |
| 5972 | template<typename T> void SetReferenceFromGroup(UniqueId id, |
| 5973 | const Persistent<T>& child); |
| 5974 | |
| 5975 | /** |
| 5976 | * Allows the host application to declare implicit references from an object |
| 5977 | * to another object. If the parent object is alive, the child object is alive |
| 5978 | * too. After each garbage collection, all implicit references are removed. It |
| 5979 | * is intended to be used in the before-garbage-collection callback function. |
| 5980 | */ |
| 5981 | template<typename T, typename S> |
| 5982 | void SetReference(const Persistent<T>& parent, const Persistent<S>& child); |
| 5983 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5984 | typedef void (*GCCallback)(Isolate* isolate, GCType type, |
| 5985 | GCCallbackFlags flags); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5986 | |
| 5987 | /** |
| 5988 | * Enables the host application to receive a notification before a |
| 5989 | * garbage collection. Allocations are allowed in the callback function, |
| 5990 | * but the callback is not re-entrant: if the allocation inside it will |
| 5991 | * trigger the garbage collection, the callback won't be called again. |
| 5992 | * It is possible to specify the GCType filter for your callback. But it is |
| 5993 | * not possible to register the same callback function two times with |
| 5994 | * different GCType filters. |
| 5995 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5996 | void AddGCPrologueCallback(GCCallback callback, |
| 5997 | GCType gc_type_filter = kGCTypeAll); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5998 | |
| 5999 | /** |
| 6000 | * This function removes callback which was installed by |
| 6001 | * AddGCPrologueCallback function. |
| 6002 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6003 | void RemoveGCPrologueCallback(GCCallback callback); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6004 | |
| 6005 | /** |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6006 | * Sets the embedder heap tracer for the isolate. |
| 6007 | */ |
| 6008 | void SetEmbedderHeapTracer(EmbedderHeapTracer* tracer); |
| 6009 | |
| 6010 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6011 | * Enables the host application to receive a notification after a |
| 6012 | * garbage collection. Allocations are allowed in the callback function, |
| 6013 | * but the callback is not re-entrant: if the allocation inside it will |
| 6014 | * trigger the garbage collection, the callback won't be called again. |
| 6015 | * It is possible to specify the GCType filter for your callback. But it is |
| 6016 | * not possible to register the same callback function two times with |
| 6017 | * different GCType filters. |
| 6018 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6019 | void AddGCEpilogueCallback(GCCallback callback, |
| 6020 | GCType gc_type_filter = kGCTypeAll); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6021 | |
| 6022 | /** |
| 6023 | * This function removes callback which was installed by |
| 6024 | * AddGCEpilogueCallback function. |
| 6025 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6026 | void RemoveGCEpilogueCallback(GCCallback callback); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6027 | |
| 6028 | /** |
| 6029 | * Forcefully terminate the current thread of JavaScript execution |
| 6030 | * in the given isolate. |
| 6031 | * |
| 6032 | * This method can be used by any thread even if that thread has not |
| 6033 | * acquired the V8 lock with a Locker object. |
| 6034 | */ |
| 6035 | void TerminateExecution(); |
| 6036 | |
| 6037 | /** |
| 6038 | * Is V8 terminating JavaScript execution. |
| 6039 | * |
| 6040 | * Returns true if JavaScript execution is currently terminating |
| 6041 | * because of a call to TerminateExecution. In that case there are |
| 6042 | * still JavaScript frames on the stack and the termination |
| 6043 | * exception is still active. |
| 6044 | */ |
| 6045 | bool IsExecutionTerminating(); |
| 6046 | |
| 6047 | /** |
| 6048 | * Resume execution capability in the given isolate, whose execution |
| 6049 | * was previously forcefully terminated using TerminateExecution(). |
| 6050 | * |
| 6051 | * When execution is forcefully terminated using TerminateExecution(), |
| 6052 | * the isolate can not resume execution until all JavaScript frames |
| 6053 | * have propagated the uncatchable exception which is generated. This |
| 6054 | * method allows the program embedding the engine to handle the |
| 6055 | * termination event and resume execution capability, even if |
| 6056 | * JavaScript frames remain on the stack. |
| 6057 | * |
| 6058 | * This method can be used by any thread even if that thread has not |
| 6059 | * acquired the V8 lock with a Locker object. |
| 6060 | */ |
| 6061 | void CancelTerminateExecution(); |
| 6062 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6063 | /** |
| 6064 | * Request V8 to interrupt long running JavaScript code and invoke |
| 6065 | * the given |callback| passing the given |data| to it. After |callback| |
| 6066 | * returns control will be returned to the JavaScript code. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6067 | * There may be a number of interrupt requests in flight. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6068 | * Can be called from another thread without acquiring a |Locker|. |
| 6069 | * Registered |callback| must not reenter interrupted Isolate. |
| 6070 | */ |
| 6071 | void RequestInterrupt(InterruptCallback callback, void* data); |
| 6072 | |
| 6073 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6074 | * Request garbage collection in this Isolate. It is only valid to call this |
| 6075 | * function if --expose_gc was specified. |
| 6076 | * |
| 6077 | * This should only be used for testing purposes and not to enforce a garbage |
| 6078 | * collection schedule. It has strong negative impact on the garbage |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6079 | * collection performance. Use IdleNotificationDeadline() or |
| 6080 | * LowMemoryNotification() instead to influence the garbage collection |
| 6081 | * schedule. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6082 | */ |
| 6083 | void RequestGarbageCollectionForTesting(GarbageCollectionType type); |
| 6084 | |
| 6085 | /** |
| 6086 | * Set the callback to invoke for logging event. |
| 6087 | */ |
| 6088 | void SetEventLogger(LogEventCallback that); |
| 6089 | |
| 6090 | /** |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6091 | * Adds a callback to notify the host application right before a script |
| 6092 | * is about to run. If a script re-enters the runtime during executing, the |
| 6093 | * BeforeCallEnteredCallback is invoked for each re-entrance. |
| 6094 | * Executing scripts inside the callback will re-trigger the callback. |
| 6095 | */ |
| 6096 | void AddBeforeCallEnteredCallback(BeforeCallEnteredCallback callback); |
| 6097 | |
| 6098 | /** |
| 6099 | * Removes callback that was installed by AddBeforeCallEnteredCallback. |
| 6100 | */ |
| 6101 | void RemoveBeforeCallEnteredCallback(BeforeCallEnteredCallback callback); |
| 6102 | |
| 6103 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6104 | * Adds a callback to notify the host application when a script finished |
| 6105 | * running. If a script re-enters the runtime during executing, the |
| 6106 | * CallCompletedCallback is only invoked when the outer-most script |
| 6107 | * execution ends. Executing scripts inside the callback do not trigger |
| 6108 | * further callbacks. |
| 6109 | */ |
| 6110 | void AddCallCompletedCallback(CallCompletedCallback callback); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6111 | V8_DEPRECATE_SOON( |
| 6112 | "Use callback with parameter", |
| 6113 | void AddCallCompletedCallback(DeprecatedCallCompletedCallback callback)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6114 | |
| 6115 | /** |
| 6116 | * Removes callback that was installed by AddCallCompletedCallback. |
| 6117 | */ |
| 6118 | void RemoveCallCompletedCallback(CallCompletedCallback callback); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6119 | V8_DEPRECATE_SOON( |
| 6120 | "Use callback with parameter", |
| 6121 | void RemoveCallCompletedCallback( |
| 6122 | DeprecatedCallCompletedCallback callback)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6123 | |
| 6124 | /** |
| 6125 | * Set callback to notify about promise reject with no handler, or |
| 6126 | * revocation of such a previous notification once the handler is added. |
| 6127 | */ |
| 6128 | void SetPromiseRejectCallback(PromiseRejectCallback callback); |
| 6129 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6130 | /** |
| 6131 | * Experimental: Runs the Microtask Work Queue until empty |
| 6132 | * Any exceptions thrown by microtask callbacks are swallowed. |
| 6133 | */ |
| 6134 | void RunMicrotasks(); |
| 6135 | |
| 6136 | /** |
| 6137 | * Experimental: Enqueues the callback to the Microtask Work Queue |
| 6138 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6139 | void EnqueueMicrotask(Local<Function> microtask); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6140 | |
| 6141 | /** |
| 6142 | * Experimental: Enqueues the callback to the Microtask Work Queue |
| 6143 | */ |
| 6144 | void EnqueueMicrotask(MicrotaskCallback microtask, void* data = NULL); |
| 6145 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6146 | /** |
| 6147 | * Experimental: Controls how Microtasks are invoked. See MicrotasksPolicy |
| 6148 | * for details. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6149 | */ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6150 | void SetMicrotasksPolicy(MicrotasksPolicy policy); |
| 6151 | V8_DEPRECATE_SOON("Use SetMicrotasksPolicy", |
| 6152 | void SetAutorunMicrotasks(bool autorun)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6153 | |
| 6154 | /** |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6155 | * Experimental: Returns the policy controlling how Microtasks are invoked. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6156 | */ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6157 | MicrotasksPolicy GetMicrotasksPolicy() const; |
| 6158 | V8_DEPRECATE_SOON("Use GetMicrotasksPolicy", |
| 6159 | bool WillAutorunMicrotasks() const); |
| 6160 | |
| 6161 | /** |
| 6162 | * Experimental: adds a callback to notify the host application after |
| 6163 | * microtasks were run. The callback is triggered by explicit RunMicrotasks |
| 6164 | * call or automatic microtasks execution (see SetAutorunMicrotasks). |
| 6165 | * |
| 6166 | * Callback will trigger even if microtasks were attempted to run, |
| 6167 | * but the microtasks queue was empty and no single microtask was actually |
| 6168 | * executed. |
| 6169 | * |
| 6170 | * Executing scriptsinside the callback will not re-trigger microtasks and |
| 6171 | * the callback. |
| 6172 | */ |
| 6173 | void AddMicrotasksCompletedCallback(MicrotasksCompletedCallback callback); |
| 6174 | |
| 6175 | /** |
| 6176 | * Removes callback that was installed by AddMicrotasksCompletedCallback. |
| 6177 | */ |
| 6178 | void RemoveMicrotasksCompletedCallback(MicrotasksCompletedCallback callback); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6179 | |
| 6180 | /** |
| 6181 | * Sets a callback for counting the number of times a feature of V8 is used. |
| 6182 | */ |
| 6183 | void SetUseCounterCallback(UseCounterCallback callback); |
| 6184 | |
| 6185 | /** |
| 6186 | * Enables the host application to provide a mechanism for recording |
| 6187 | * statistics counters. |
| 6188 | */ |
| 6189 | void SetCounterFunction(CounterLookupCallback); |
| 6190 | |
| 6191 | /** |
| 6192 | * Enables the host application to provide a mechanism for recording |
| 6193 | * histograms. The CreateHistogram function returns a |
| 6194 | * histogram which will later be passed to the AddHistogramSample |
| 6195 | * function. |
| 6196 | */ |
| 6197 | void SetCreateHistogramFunction(CreateHistogramCallback); |
| 6198 | void SetAddHistogramSampleFunction(AddHistogramSampleCallback); |
| 6199 | |
| 6200 | /** |
| 6201 | * Optional notification that the embedder is idle. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6202 | * V8 uses the notification to perform garbage collection. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6203 | * This call can be used repeatedly if the embedder remains idle. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6204 | * Returns true if the embedder should stop calling IdleNotificationDeadline |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6205 | * until real work has been done. This indicates that V8 has done |
| 6206 | * as much cleanup as it will be able to do. |
| 6207 | * |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6208 | * The deadline_in_seconds argument specifies the deadline V8 has to finish |
| 6209 | * garbage collection work. deadline_in_seconds is compared with |
| 6210 | * MonotonicallyIncreasingTime() and should be based on the same timebase as |
| 6211 | * that function. There is no guarantee that the actual work will be done |
| 6212 | * within the time limit. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6213 | */ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6214 | bool IdleNotificationDeadline(double deadline_in_seconds); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6215 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6216 | V8_DEPRECATED("use IdleNotificationDeadline()", |
| 6217 | bool IdleNotification(int idle_time_in_ms)); |
| 6218 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6219 | /** |
| 6220 | * Optional notification that the system is running low on memory. |
| 6221 | * V8 uses these notifications to attempt to free memory. |
| 6222 | */ |
| 6223 | void LowMemoryNotification(); |
| 6224 | |
| 6225 | /** |
| 6226 | * Optional notification that a context has been disposed. V8 uses |
| 6227 | * these notifications to guide the GC heuristic. Returns the number |
| 6228 | * of context disposals - including this one - since the last time |
| 6229 | * V8 had a chance to clean up. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6230 | * |
| 6231 | * The optional parameter |dependant_context| specifies whether the disposed |
| 6232 | * context was depending on state from other contexts or not. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6233 | */ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6234 | int ContextDisposedNotification(bool dependant_context = true); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6235 | |
| 6236 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6237 | * Optional notification that the isolate switched to the foreground. |
| 6238 | * V8 uses these notifications to guide heuristics. |
| 6239 | */ |
| 6240 | void IsolateInForegroundNotification(); |
| 6241 | |
| 6242 | /** |
| 6243 | * Optional notification that the isolate switched to the background. |
| 6244 | * V8 uses these notifications to guide heuristics. |
| 6245 | */ |
| 6246 | void IsolateInBackgroundNotification(); |
| 6247 | |
| 6248 | /** |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6249 | * Optional notification to tell V8 the current performance requirements |
| 6250 | * of the embedder based on RAIL. |
| 6251 | * V8 uses these notifications to guide heuristics. |
| 6252 | * This is an unfinished experimental feature. Semantics and implementation |
| 6253 | * may change frequently. |
| 6254 | */ |
| 6255 | void SetRAILMode(RAILMode rail_mode); |
| 6256 | |
| 6257 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6258 | * Allows the host application to provide the address of a function that is |
| 6259 | * notified each time code is added, moved or removed. |
| 6260 | * |
| 6261 | * \param options options for the JIT code event handler. |
| 6262 | * \param event_handler the JIT code event handler, which will be invoked |
| 6263 | * each time code is added, moved or removed. |
| 6264 | * \note \p event_handler won't get notified of existent code. |
| 6265 | * \note since code removal notifications are not currently issued, the |
| 6266 | * \p event_handler may get notifications of code that overlaps earlier |
| 6267 | * code notifications. This happens when code areas are reused, and the |
| 6268 | * earlier overlapping code areas should therefore be discarded. |
| 6269 | * \note the events passed to \p event_handler and the strings they point to |
| 6270 | * are not guaranteed to live past each call. The \p event_handler must |
| 6271 | * copy strings and other parameters it needs to keep around. |
| 6272 | * \note the set of events declared in JitCodeEvent::EventType is expected to |
| 6273 | * grow over time, and the JitCodeEvent structure is expected to accrue |
| 6274 | * new members. The \p event_handler function must ignore event codes |
| 6275 | * it does not recognize to maintain future compatibility. |
| 6276 | * \note Use Isolate::CreateParams to get events for code executed during |
| 6277 | * Isolate setup. |
| 6278 | */ |
| 6279 | void SetJitCodeEventHandler(JitCodeEventOptions options, |
| 6280 | JitCodeEventHandler event_handler); |
| 6281 | |
| 6282 | /** |
| 6283 | * Modifies the stack limit for this Isolate. |
| 6284 | * |
| 6285 | * \param stack_limit An address beyond which the Vm's stack may not grow. |
| 6286 | * |
| 6287 | * \note If you are using threads then you should hold the V8::Locker lock |
| 6288 | * while setting the stack limit and you must set a non-default stack |
| 6289 | * limit separately for each thread. |
| 6290 | */ |
| 6291 | void SetStackLimit(uintptr_t stack_limit); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6292 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6293 | /** |
| 6294 | * Returns a memory range that can potentially contain jitted code. |
| 6295 | * |
| 6296 | * On Win64, embedders are advised to install function table callbacks for |
| 6297 | * these ranges, as default SEH won't be able to unwind through jitted code. |
| 6298 | * |
| 6299 | * The first page of the code range is reserved for the embedder and is |
| 6300 | * committed, writable, and executable. |
| 6301 | * |
| 6302 | * Might be empty on other platforms. |
| 6303 | * |
| 6304 | * https://code.google.com/p/v8/issues/detail?id=3598 |
| 6305 | */ |
| 6306 | void GetCodeRange(void** start, size_t* length_in_bytes); |
| 6307 | |
| 6308 | /** Set the callback to invoke in case of fatal errors. */ |
| 6309 | void SetFatalErrorHandler(FatalErrorCallback that); |
| 6310 | |
| 6311 | /** |
| 6312 | * Set the callback to invoke to check if code generation from |
| 6313 | * strings should be allowed. |
| 6314 | */ |
| 6315 | void SetAllowCodeGenerationFromStringsCallback( |
| 6316 | AllowCodeGenerationFromStringsCallback callback); |
| 6317 | |
| 6318 | /** |
| 6319 | * Check if V8 is dead and therefore unusable. This is the case after |
| 6320 | * fatal errors such as out-of-memory situations. |
| 6321 | */ |
| 6322 | bool IsDead(); |
| 6323 | |
| 6324 | /** |
| 6325 | * Adds a message listener. |
| 6326 | * |
| 6327 | * The same message listener can be added more than once and in that |
| 6328 | * case it will be called more than once for each message. |
| 6329 | * |
| 6330 | * If data is specified, it will be passed to the callback when it is called. |
| 6331 | * Otherwise, the exception object will be passed to the callback instead. |
| 6332 | */ |
| 6333 | bool AddMessageListener(MessageCallback that, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6334 | Local<Value> data = Local<Value>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6335 | |
| 6336 | /** |
| 6337 | * Remove all message listeners from the specified callback function. |
| 6338 | */ |
| 6339 | void RemoveMessageListeners(MessageCallback that); |
| 6340 | |
| 6341 | /** Callback function for reporting failed access checks.*/ |
| 6342 | void SetFailedAccessCheckCallbackFunction(FailedAccessCheckCallback); |
| 6343 | |
| 6344 | /** |
| 6345 | * Tells V8 to capture current stack trace when uncaught exception occurs |
| 6346 | * and report it to the message listeners. The option is off by default. |
| 6347 | */ |
| 6348 | void SetCaptureStackTraceForUncaughtExceptions( |
| 6349 | bool capture, int frame_limit = 10, |
| 6350 | StackTrace::StackTraceOptions options = StackTrace::kOverview); |
| 6351 | |
| 6352 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6353 | * Iterates through all external resources referenced from current isolate |
| 6354 | * heap. GC is not invoked prior to iterating, therefore there is no |
| 6355 | * guarantee that visited objects are still alive. |
| 6356 | */ |
| 6357 | void VisitExternalResources(ExternalResourceVisitor* visitor); |
| 6358 | |
| 6359 | /** |
| 6360 | * Iterates through all the persistent handles in the current isolate's heap |
| 6361 | * that have class_ids. |
| 6362 | */ |
| 6363 | void VisitHandlesWithClassIds(PersistentHandleVisitor* visitor); |
| 6364 | |
| 6365 | /** |
| 6366 | * Iterates through all the persistent handles in the current isolate's heap |
| 6367 | * that have class_ids and are candidates to be marked as partially dependent |
| 6368 | * handles. This will visit handles to young objects created since the last |
| 6369 | * garbage collection but is free to visit an arbitrary superset of these |
| 6370 | * objects. |
| 6371 | */ |
| 6372 | void VisitHandlesForPartialDependence(PersistentHandleVisitor* visitor); |
| 6373 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6374 | /** |
| 6375 | * Iterates through all the persistent handles in the current isolate's heap |
| 6376 | * that have class_ids and are weak to be marked as inactive if there is no |
| 6377 | * pending activity for the handle. |
| 6378 | */ |
| 6379 | void VisitWeakHandles(PersistentHandleVisitor* visitor); |
| 6380 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6381 | /** |
| 6382 | * Check if this isolate is in use. |
| 6383 | * True if at least one thread Enter'ed this isolate. |
| 6384 | */ |
| 6385 | bool IsInUse(); |
| 6386 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6387 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6388 | template <class K, class V, class Traits> |
| 6389 | friend class PersistentValueMapBase; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6390 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6391 | Isolate(); |
| 6392 | Isolate(const Isolate&); |
| 6393 | ~Isolate(); |
| 6394 | Isolate& operator=(const Isolate&); |
| 6395 | void* operator new(size_t size); |
| 6396 | void operator delete(void*, size_t); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6397 | |
| 6398 | void SetObjectGroupId(internal::Object** object, UniqueId id); |
| 6399 | void SetReferenceFromGroup(UniqueId id, internal::Object** object); |
| 6400 | void SetReference(internal::Object** parent, internal::Object** child); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6401 | void ReportExternalAllocationLimitReached(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6402 | }; |
| 6403 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6404 | class V8_EXPORT StartupData { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6405 | public: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6406 | const char* data; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6407 | int raw_size; |
| 6408 | }; |
| 6409 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6410 | |
| 6411 | /** |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6412 | * EntropySource is used as a callback function when v8 needs a source |
| 6413 | * of entropy. |
| 6414 | */ |
| 6415 | typedef bool (*EntropySource)(unsigned char* buffer, size_t length); |
| 6416 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6417 | |
| 6418 | /** |
| 6419 | * ReturnAddressLocationResolver is used as a callback function when v8 is |
| 6420 | * resolving the location of a return address on the stack. Profilers that |
| 6421 | * change the return address on the stack can use this to resolve the stack |
| 6422 | * location to whereever the profiler stashed the original return address. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6423 | * |
| 6424 | * \param return_addr_location points to a location on stack where a machine |
| 6425 | * return address resides. |
| 6426 | * \returns either return_addr_location, or else a pointer to the profiler's |
| 6427 | * copy of the original return address. |
| 6428 | * |
| 6429 | * \note the resolver function must not cause garbage collection. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6430 | */ |
| 6431 | typedef uintptr_t (*ReturnAddressLocationResolver)( |
| 6432 | uintptr_t return_addr_location); |
| 6433 | |
| 6434 | |
| 6435 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6436 | * Container class for static utility functions. |
| 6437 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6438 | class V8_EXPORT V8 { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6439 | public: |
| 6440 | /** Set the callback to invoke in case of fatal errors. */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6441 | V8_INLINE static V8_DEPRECATED( |
| 6442 | "Use isolate version", |
| 6443 | void SetFatalErrorHandler(FatalErrorCallback that)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6444 | |
| 6445 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6446 | * Set the callback to invoke to check if code generation from |
| 6447 | * strings should be allowed. |
| 6448 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6449 | V8_INLINE static V8_DEPRECATED( |
| 6450 | "Use isolate version", void SetAllowCodeGenerationFromStringsCallback( |
| 6451 | AllowCodeGenerationFromStringsCallback that)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6452 | |
| 6453 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6454 | * Check if V8 is dead and therefore unusable. This is the case after |
| 6455 | * fatal errors such as out-of-memory situations. |
| 6456 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6457 | V8_INLINE static V8_DEPRECATED("Use isolate version", bool IsDead()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6458 | |
| 6459 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6460 | * Hand startup data to V8, in case the embedder has chosen to build |
| 6461 | * V8 with external startup data. |
| 6462 | * |
| 6463 | * Note: |
| 6464 | * - By default the startup data is linked into the V8 library, in which |
| 6465 | * case this function is not meaningful. |
| 6466 | * - If this needs to be called, it needs to be called before V8 |
| 6467 | * tries to make use of its built-ins. |
| 6468 | * - To avoid unnecessary copies of data, V8 will point directly into the |
| 6469 | * given data blob, so pretty please keep it around until V8 exit. |
| 6470 | * - Compression of the startup blob might be useful, but needs to |
| 6471 | * handled entirely on the embedders' side. |
| 6472 | * - The call will abort if the data is invalid. |
| 6473 | */ |
| 6474 | static void SetNativesDataBlob(StartupData* startup_blob); |
| 6475 | static void SetSnapshotDataBlob(StartupData* startup_blob); |
| 6476 | |
| 6477 | /** |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6478 | * Bootstrap an isolate and a context from scratch to create a startup |
| 6479 | * snapshot. Include the side-effects of running the optional script. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6480 | * Returns { NULL, 0 } on failure. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6481 | * The caller acquires ownership of the data array in the return value. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6482 | */ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6483 | static StartupData CreateSnapshotDataBlob(const char* embedded_source = NULL); |
| 6484 | |
| 6485 | /** |
| 6486 | * Bootstrap an isolate and a context from the cold startup blob, run the |
| 6487 | * warm-up script to trigger code compilation. The side effects are then |
| 6488 | * discarded. The resulting startup snapshot will include compiled code. |
| 6489 | * Returns { NULL, 0 } on failure. |
| 6490 | * The caller acquires ownership of the data array in the return value. |
| 6491 | * The argument startup blob is untouched. |
| 6492 | */ |
| 6493 | static StartupData WarmUpSnapshotDataBlob(StartupData cold_startup_blob, |
| 6494 | const char* warmup_source); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6495 | |
| 6496 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6497 | * Adds a message listener. |
| 6498 | * |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6499 | * The same message listener can be added more than once and in that |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6500 | * case it will be called more than once for each message. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6501 | * |
| 6502 | * If data is specified, it will be passed to the callback when it is called. |
| 6503 | * Otherwise, the exception object will be passed to the callback instead. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6504 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6505 | V8_INLINE static V8_DEPRECATED( |
| 6506 | "Use isolate version", |
| 6507 | bool AddMessageListener(MessageCallback that, |
| 6508 | Local<Value> data = Local<Value>())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6509 | |
| 6510 | /** |
| 6511 | * Remove all message listeners from the specified callback function. |
| 6512 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6513 | V8_INLINE static V8_DEPRECATED( |
| 6514 | "Use isolate version", void RemoveMessageListeners(MessageCallback that)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6515 | |
| 6516 | /** |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 6517 | * Tells V8 to capture current stack trace when uncaught exception occurs |
| 6518 | * and report it to the message listeners. The option is off by default. |
| 6519 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6520 | V8_INLINE static V8_DEPRECATED( |
| 6521 | "Use isolate version", |
| 6522 | void SetCaptureStackTraceForUncaughtExceptions( |
| 6523 | bool capture, int frame_limit = 10, |
| 6524 | StackTrace::StackTraceOptions options = StackTrace::kOverview)); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 6525 | |
| 6526 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6527 | * Sets V8 flags from a string. |
| 6528 | */ |
| 6529 | static void SetFlagsFromString(const char* str, int length); |
| 6530 | |
| 6531 | /** |
| 6532 | * Sets V8 flags from the command line. |
| 6533 | */ |
| 6534 | static void SetFlagsFromCommandLine(int* argc, |
| 6535 | char** argv, |
| 6536 | bool remove_flags); |
| 6537 | |
| 6538 | /** Get the version string. */ |
| 6539 | static const char* GetVersion(); |
| 6540 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6541 | /** Callback function for reporting failed access checks.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6542 | V8_INLINE static V8_DEPRECATED( |
| 6543 | "Use isolate version", |
| 6544 | void SetFailedAccessCheckCallbackFunction(FailedAccessCheckCallback)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6545 | |
| 6546 | /** |
| 6547 | * Enables the host application to receive a notification before a |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6548 | * garbage collection. Allocations are not allowed in the |
| 6549 | * callback function, you therefore cannot manipulate objects (set |
| 6550 | * or delete properties for example) since it is possible such |
| 6551 | * operations will result in the allocation of objects. It is possible |
| 6552 | * to specify the GCType filter for your callback. But it is not possible to |
| 6553 | * register the same callback function two times with different |
| 6554 | * GCType filters. |
| 6555 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6556 | static V8_DEPRECATED( |
| 6557 | "Use isolate version", |
| 6558 | void AddGCPrologueCallback(GCCallback callback, |
| 6559 | GCType gc_type_filter = kGCTypeAll)); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6560 | |
| 6561 | /** |
| 6562 | * This function removes callback which was installed by |
| 6563 | * AddGCPrologueCallback function. |
| 6564 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6565 | V8_INLINE static V8_DEPRECATED( |
| 6566 | "Use isolate version", |
| 6567 | void RemoveGCPrologueCallback(GCCallback callback)); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6568 | |
| 6569 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6570 | * Enables the host application to receive a notification after a |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6571 | * garbage collection. Allocations are not allowed in the |
| 6572 | * callback function, you therefore cannot manipulate objects (set |
| 6573 | * or delete properties for example) since it is possible such |
| 6574 | * operations will result in the allocation of objects. It is possible |
| 6575 | * to specify the GCType filter for your callback. But it is not possible to |
| 6576 | * register the same callback function two times with different |
| 6577 | * GCType filters. |
| 6578 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6579 | static V8_DEPRECATED( |
| 6580 | "Use isolate version", |
| 6581 | void AddGCEpilogueCallback(GCCallback callback, |
| 6582 | GCType gc_type_filter = kGCTypeAll)); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6583 | |
| 6584 | /** |
| 6585 | * This function removes callback which was installed by |
| 6586 | * AddGCEpilogueCallback function. |
| 6587 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6588 | V8_INLINE static V8_DEPRECATED( |
| 6589 | "Use isolate version", |
| 6590 | void RemoveGCEpilogueCallback(GCCallback callback)); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6591 | |
| 6592 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6593 | * Initializes V8. This function needs to be called before the first Isolate |
| 6594 | * is created. It always returns true. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6595 | */ |
| 6596 | static bool Initialize(); |
| 6597 | |
| 6598 | /** |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6599 | * Allows the host application to provide a callback which can be used |
| 6600 | * as a source of entropy for random number generators. |
| 6601 | */ |
| 6602 | static void SetEntropySource(EntropySource source); |
| 6603 | |
| 6604 | /** |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6605 | * Allows the host application to provide a callback that allows v8 to |
| 6606 | * cooperate with a profiler that rewrites return addresses on stack. |
| 6607 | */ |
| 6608 | static void SetReturnAddressLocationResolver( |
| 6609 | ReturnAddressLocationResolver return_address_resolver); |
| 6610 | |
| 6611 | /** |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6612 | * Forcefully terminate the current thread of JavaScript execution |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6613 | * in the given isolate. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6614 | * |
| 6615 | * This method can be used by any thread even if that thread has not |
| 6616 | * acquired the V8 lock with a Locker object. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6617 | * |
| 6618 | * \param isolate The isolate in which to terminate the current JS execution. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6619 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6620 | V8_INLINE static V8_DEPRECATED("Use isolate version", |
| 6621 | void TerminateExecution(Isolate* isolate)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6622 | |
| 6623 | /** |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6624 | * Is V8 terminating JavaScript execution. |
| 6625 | * |
| 6626 | * Returns true if JavaScript execution is currently terminating |
| 6627 | * because of a call to TerminateExecution. In that case there are |
| 6628 | * still JavaScript frames on the stack and the termination |
| 6629 | * exception is still active. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6630 | * |
| 6631 | * \param isolate The isolate in which to check. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6632 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6633 | V8_INLINE static V8_DEPRECATED( |
| 6634 | "Use isolate version", |
| 6635 | bool IsExecutionTerminating(Isolate* isolate = NULL)); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6636 | |
| 6637 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6638 | * Resume execution capability in the given isolate, whose execution |
| 6639 | * was previously forcefully terminated using TerminateExecution(). |
| 6640 | * |
| 6641 | * When execution is forcefully terminated using TerminateExecution(), |
| 6642 | * the isolate can not resume execution until all JavaScript frames |
| 6643 | * have propagated the uncatchable exception which is generated. This |
| 6644 | * method allows the program embedding the engine to handle the |
| 6645 | * termination event and resume execution capability, even if |
| 6646 | * JavaScript frames remain on the stack. |
| 6647 | * |
| 6648 | * This method can be used by any thread even if that thread has not |
| 6649 | * acquired the V8 lock with a Locker object. |
| 6650 | * |
| 6651 | * \param isolate The isolate in which to resume execution capability. |
| 6652 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6653 | V8_INLINE static V8_DEPRECATED( |
| 6654 | "Use isolate version", void CancelTerminateExecution(Isolate* isolate)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6655 | |
| 6656 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6657 | * Releases any resources used by v8 and stops any utility threads |
| 6658 | * that may be running. Note that disposing v8 is permanent, it |
| 6659 | * cannot be reinitialized. |
| 6660 | * |
| 6661 | * It should generally not be necessary to dispose v8 before exiting |
| 6662 | * a process, this should happen automatically. It is only necessary |
| 6663 | * to use if the process needs the resources taken up by v8. |
| 6664 | */ |
| 6665 | static bool Dispose(); |
| 6666 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 6667 | /** |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6668 | * Iterates through all external resources referenced from current isolate |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6669 | * heap. GC is not invoked prior to iterating, therefore there is no |
| 6670 | * guarantee that visited objects are still alive. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6671 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6672 | V8_INLINE static V8_DEPRECATED( |
| 6673 | "Use isolate version", |
| 6674 | void VisitExternalResources(ExternalResourceVisitor* visitor)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6675 | |
| 6676 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6677 | * Iterates through all the persistent handles in the current isolate's heap |
| 6678 | * that have class_ids. |
| 6679 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6680 | V8_INLINE static V8_DEPRECATED( |
| 6681 | "Use isolate version", |
| 6682 | void VisitHandlesWithClassIds(PersistentHandleVisitor* visitor)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6683 | |
| 6684 | /** |
| 6685 | * Iterates through all the persistent handles in isolate's heap that have |
| 6686 | * class_ids. |
| 6687 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6688 | V8_INLINE static V8_DEPRECATED( |
| 6689 | "Use isolate version", |
| 6690 | void VisitHandlesWithClassIds(Isolate* isolate, |
| 6691 | PersistentHandleVisitor* visitor)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6692 | |
| 6693 | /** |
| 6694 | * Iterates through all the persistent handles in the current isolate's heap |
| 6695 | * that have class_ids and are candidates to be marked as partially dependent |
| 6696 | * handles. This will visit handles to young objects created since the last |
| 6697 | * garbage collection but is free to visit an arbitrary superset of these |
| 6698 | * objects. |
| 6699 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6700 | V8_INLINE static V8_DEPRECATED( |
| 6701 | "Use isolate version", |
| 6702 | void VisitHandlesForPartialDependence(Isolate* isolate, |
| 6703 | PersistentHandleVisitor* visitor)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6704 | |
| 6705 | /** |
| 6706 | * Initialize the ICU library bundled with V8. The embedder should only |
| 6707 | * invoke this method when using the bundled ICU. Returns true on success. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6708 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6709 | * If V8 was compiled with the ICU data in an external file, the location |
| 6710 | * of the data file has to be provided. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6711 | */ |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6712 | V8_DEPRECATE_SOON( |
| 6713 | "Use version with default location.", |
| 6714 | static bool InitializeICU(const char* icu_data_file = nullptr)); |
| 6715 | |
| 6716 | /** |
| 6717 | * Initialize the ICU library bundled with V8. The embedder should only |
| 6718 | * invoke this method when using the bundled ICU. If V8 was compiled with |
| 6719 | * the ICU data in an external file and when the default location of that |
| 6720 | * file should be used, a path to the executable must be provided. |
| 6721 | * Returns true on success. |
| 6722 | * |
| 6723 | * The default is a file called icudtl.dat side-by-side with the executable. |
| 6724 | * |
| 6725 | * Optionally, the location of the data file can be provided to override the |
| 6726 | * default. |
| 6727 | */ |
| 6728 | static bool InitializeICUDefaultLocation(const char* exec_path, |
| 6729 | const char* icu_data_file = nullptr); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6730 | |
| 6731 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6732 | * Initialize the external startup data. The embedder only needs to |
| 6733 | * invoke this method when external startup data was enabled in a build. |
| 6734 | * |
| 6735 | * If V8 was compiled with the startup data in an external file, then |
| 6736 | * V8 needs to be given those external files during startup. There are |
| 6737 | * three ways to do this: |
| 6738 | * - InitializeExternalStartupData(const char*) |
| 6739 | * This will look in the given directory for files "natives_blob.bin" |
| 6740 | * and "snapshot_blob.bin" - which is what the default build calls them. |
| 6741 | * - InitializeExternalStartupData(const char*, const char*) |
| 6742 | * As above, but will directly use the two given file names. |
| 6743 | * - Call SetNativesDataBlob, SetNativesDataBlob. |
| 6744 | * This will read the blobs from the given data structures and will |
| 6745 | * not perform any file IO. |
| 6746 | */ |
| 6747 | static void InitializeExternalStartupData(const char* directory_path); |
| 6748 | static void InitializeExternalStartupData(const char* natives_blob, |
| 6749 | const char* snapshot_blob); |
| 6750 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6751 | * Sets the v8::Platform to use. This should be invoked before V8 is |
| 6752 | * initialized. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6753 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6754 | static void InitializePlatform(Platform* platform); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6755 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6756 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6757 | * Clears all references to the v8::Platform. This should be invoked after |
| 6758 | * V8 was disposed. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6759 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6760 | static void ShutdownPlatform(); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6761 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6762 | private: |
| 6763 | V8(); |
| 6764 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6765 | static internal::Object** GlobalizeReference(internal::Isolate* isolate, |
| 6766 | internal::Object** handle); |
| 6767 | static internal::Object** CopyPersistent(internal::Object** handle); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6768 | static void DisposeGlobal(internal::Object** global_handle); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6769 | static void MakeWeak(internal::Object** location, void* data, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6770 | WeakCallbackInfo<void>::Callback weak_callback, |
| 6771 | WeakCallbackType type); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6772 | static void MakeWeak(internal::Object** location, void* data, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6773 | // Must be 0 or -1. |
| 6774 | int internal_field_index1, |
| 6775 | // Must be 1 or -1. |
| 6776 | int internal_field_index2, |
| 6777 | WeakCallbackInfo<void>::Callback weak_callback); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6778 | static void MakeWeak(internal::Object*** location_addr); |
| 6779 | static void* ClearWeak(internal::Object** location); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6780 | static void Eternalize(Isolate* isolate, |
| 6781 | Value* handle, |
| 6782 | int* index); |
| 6783 | static Local<Value> GetEternal(Isolate* isolate, int index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6784 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6785 | static void RegisterExternallyReferencedObject(internal::Object** object, |
| 6786 | internal::Isolate* isolate); |
| 6787 | template <class K, class V, class T> |
| 6788 | friend class PersistentValueMapBase; |
| 6789 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6790 | static void FromJustIsNothing(); |
| 6791 | static void ToLocalEmpty(); |
| 6792 | static void InternalFieldOutOfBounds(int index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6793 | template <class T> friend class Local; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6794 | template <class T> |
| 6795 | friend class MaybeLocal; |
| 6796 | template <class T> |
| 6797 | friend class Maybe; |
| 6798 | template <class T> |
| 6799 | friend class WeakCallbackInfo; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6800 | template <class T> friend class Eternal; |
| 6801 | template <class T> friend class PersistentBase; |
| 6802 | template <class T, class M> friend class Persistent; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6803 | friend class Context; |
| 6804 | }; |
| 6805 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6806 | /** |
| 6807 | * Helper class to create a snapshot data blob. |
| 6808 | */ |
| 6809 | class SnapshotCreator { |
| 6810 | public: |
| 6811 | enum class FunctionCodeHandling { kClear, kKeep }; |
| 6812 | |
| 6813 | /** |
| 6814 | * Create and enter an isolate, and set it up for serialization. |
| 6815 | * The isolate is either created from scratch or from an existing snapshot. |
| 6816 | * The caller keeps ownership of the argument snapshot. |
| 6817 | * \param existing_blob existing snapshot from which to create this one. |
| 6818 | * \param external_references a null-terminated array of external references |
| 6819 | * that must be equivalent to CreateParams::external_references. |
| 6820 | */ |
| 6821 | SnapshotCreator(intptr_t* external_references = nullptr, |
| 6822 | StartupData* existing_blob = nullptr); |
| 6823 | |
| 6824 | ~SnapshotCreator(); |
| 6825 | |
| 6826 | /** |
| 6827 | * \returns the isolate prepared by the snapshot creator. |
| 6828 | */ |
| 6829 | Isolate* GetIsolate(); |
| 6830 | |
| 6831 | /** |
| 6832 | * Add a context to be included in the snapshot blob. |
| 6833 | * \returns the index of the context in the snapshot blob. |
| 6834 | */ |
| 6835 | size_t AddContext(Local<Context> context); |
| 6836 | |
| 6837 | /** |
| 6838 | * Add a template to be included in the snapshot blob. |
| 6839 | * \returns the index of the template in the snapshot blob. |
| 6840 | */ |
| 6841 | size_t AddTemplate(Local<Template> template_obj); |
| 6842 | |
| 6843 | /** |
| 6844 | * Created a snapshot data blob. |
| 6845 | * This must not be called from within a handle scope. |
| 6846 | * \param function_code_handling whether to include compiled function code |
| 6847 | * in the snapshot. |
| 6848 | * \returns { nullptr, 0 } on failure, and a startup snapshot on success. The |
| 6849 | * caller acquires ownership of the data array in the return value. |
| 6850 | */ |
| 6851 | StartupData CreateBlob(FunctionCodeHandling function_code_handling); |
| 6852 | |
| 6853 | private: |
| 6854 | void* data_; |
| 6855 | |
| 6856 | // Disallow copying and assigning. |
| 6857 | SnapshotCreator(const SnapshotCreator&); |
| 6858 | void operator=(const SnapshotCreator&); |
| 6859 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6860 | |
| 6861 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6862 | * A simple Maybe type, representing an object which may or may not have a |
| 6863 | * value, see https://hackage.haskell.org/package/base/docs/Data-Maybe.html. |
| 6864 | * |
| 6865 | * If an API method returns a Maybe<>, the API method can potentially fail |
| 6866 | * either because an exception is thrown, or because an exception is pending, |
| 6867 | * e.g. because a previous API call threw an exception that hasn't been caught |
| 6868 | * yet, or because a TerminateExecution exception was thrown. In that case, a |
| 6869 | * "Nothing" value is returned. |
| 6870 | */ |
| 6871 | template <class T> |
| 6872 | class Maybe { |
| 6873 | public: |
| 6874 | V8_INLINE bool IsNothing() const { return !has_value; } |
| 6875 | V8_INLINE bool IsJust() const { return has_value; } |
| 6876 | |
| 6877 | // Will crash if the Maybe<> is nothing. |
| 6878 | V8_INLINE T FromJust() const { |
| 6879 | if (V8_UNLIKELY(!IsJust())) V8::FromJustIsNothing(); |
| 6880 | return value; |
| 6881 | } |
| 6882 | |
| 6883 | V8_INLINE T FromMaybe(const T& default_value) const { |
| 6884 | return has_value ? value : default_value; |
| 6885 | } |
| 6886 | |
| 6887 | V8_INLINE bool operator==(const Maybe& other) const { |
| 6888 | return (IsJust() == other.IsJust()) && |
| 6889 | (!IsJust() || FromJust() == other.FromJust()); |
| 6890 | } |
| 6891 | |
| 6892 | V8_INLINE bool operator!=(const Maybe& other) const { |
| 6893 | return !operator==(other); |
| 6894 | } |
| 6895 | |
| 6896 | private: |
| 6897 | Maybe() : has_value(false) {} |
| 6898 | explicit Maybe(const T& t) : has_value(true), value(t) {} |
| 6899 | |
| 6900 | bool has_value; |
| 6901 | T value; |
| 6902 | |
| 6903 | template <class U> |
| 6904 | friend Maybe<U> Nothing(); |
| 6905 | template <class U> |
| 6906 | friend Maybe<U> Just(const U& u); |
| 6907 | }; |
| 6908 | |
| 6909 | |
| 6910 | template <class T> |
| 6911 | inline Maybe<T> Nothing() { |
| 6912 | return Maybe<T>(); |
| 6913 | } |
| 6914 | |
| 6915 | |
| 6916 | template <class T> |
| 6917 | inline Maybe<T> Just(const T& t) { |
| 6918 | return Maybe<T>(t); |
| 6919 | } |
| 6920 | |
| 6921 | |
| 6922 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6923 | * An external exception handler. |
| 6924 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6925 | class V8_EXPORT TryCatch { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6926 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6927 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6928 | * Creates a new try/catch block and registers it with v8. Note that |
| 6929 | * all TryCatch blocks should be stack allocated because the memory |
| 6930 | * location itself is compared against JavaScript try/catch blocks. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6931 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6932 | V8_DEPRECATED("Use isolate version", TryCatch()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6933 | |
| 6934 | /** |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6935 | * Creates a new try/catch block and registers it with v8. Note that |
| 6936 | * all TryCatch blocks should be stack allocated because the memory |
| 6937 | * location itself is compared against JavaScript try/catch blocks. |
| 6938 | */ |
| 6939 | TryCatch(Isolate* isolate); |
| 6940 | |
| 6941 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6942 | * Unregisters and deletes this try/catch block. |
| 6943 | */ |
| 6944 | ~TryCatch(); |
| 6945 | |
| 6946 | /** |
| 6947 | * Returns true if an exception has been caught by this try/catch block. |
| 6948 | */ |
| 6949 | bool HasCaught() const; |
| 6950 | |
| 6951 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6952 | * For certain types of exceptions, it makes no sense to continue execution. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6953 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6954 | * If CanContinue returns false, the correct action is to perform any C++ |
| 6955 | * cleanup needed and then return. If CanContinue returns false and |
| 6956 | * HasTerminated returns true, it is possible to call |
| 6957 | * CancelTerminateExecution in order to continue calling into the engine. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6958 | */ |
| 6959 | bool CanContinue() const; |
| 6960 | |
| 6961 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6962 | * Returns true if an exception has been caught due to script execution |
| 6963 | * being terminated. |
| 6964 | * |
| 6965 | * There is no JavaScript representation of an execution termination |
| 6966 | * exception. Such exceptions are thrown when the TerminateExecution |
| 6967 | * methods are called to terminate a long-running script. |
| 6968 | * |
| 6969 | * If such an exception has been thrown, HasTerminated will return true, |
| 6970 | * indicating that it is possible to call CancelTerminateExecution in order |
| 6971 | * to continue calling into the engine. |
| 6972 | */ |
| 6973 | bool HasTerminated() const; |
| 6974 | |
| 6975 | /** |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 6976 | * Throws the exception caught by this TryCatch in a way that avoids |
| 6977 | * it being caught again by this same TryCatch. As with ThrowException |
| 6978 | * it is illegal to execute any JavaScript operations after calling |
| 6979 | * ReThrow; the caller must return immediately to where the exception |
| 6980 | * is caught. |
| 6981 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6982 | Local<Value> ReThrow(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 6983 | |
| 6984 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6985 | * Returns the exception caught by this try/catch block. If no exception has |
| 6986 | * been caught an empty handle is returned. |
| 6987 | * |
| 6988 | * The returned handle is valid until this TryCatch block has been destroyed. |
| 6989 | */ |
| 6990 | Local<Value> Exception() const; |
| 6991 | |
| 6992 | /** |
| 6993 | * Returns the .stack property of the thrown object. If no .stack |
| 6994 | * property is present an empty handle is returned. |
| 6995 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6996 | V8_DEPRECATE_SOON("Use maybe version.", Local<Value> StackTrace() const); |
| 6997 | V8_WARN_UNUSED_RESULT MaybeLocal<Value> StackTrace( |
| 6998 | Local<Context> context) const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6999 | |
| 7000 | /** |
| 7001 | * Returns the message associated with this exception. If there is |
| 7002 | * no message associated an empty handle is returned. |
| 7003 | * |
| 7004 | * The returned handle is valid until this TryCatch block has been |
| 7005 | * destroyed. |
| 7006 | */ |
| 7007 | Local<v8::Message> Message() const; |
| 7008 | |
| 7009 | /** |
| 7010 | * Clears any exceptions that may have been caught by this try/catch block. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7011 | * After this method has been called, HasCaught() will return false. Cancels |
| 7012 | * the scheduled exception if it is caught and ReThrow() is not called before. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7013 | * |
| 7014 | * It is not necessary to clear a try/catch block before using it again; if |
| 7015 | * another exception is thrown the previously caught exception will just be |
| 7016 | * overwritten. However, it is often a good idea since it makes it easier |
| 7017 | * to determine which operation threw a given exception. |
| 7018 | */ |
| 7019 | void Reset(); |
| 7020 | |
| 7021 | /** |
| 7022 | * Set verbosity of the external exception handler. |
| 7023 | * |
| 7024 | * By default, exceptions that are caught by an external exception |
| 7025 | * handler are not reported. Call SetVerbose with true on an |
| 7026 | * external exception handler to have exceptions caught by the |
| 7027 | * handler reported as if they were not caught. |
| 7028 | */ |
| 7029 | void SetVerbose(bool value); |
| 7030 | |
| 7031 | /** |
| 7032 | * Set whether or not this TryCatch should capture a Message object |
| 7033 | * which holds source information about where the exception |
| 7034 | * occurred. True by default. |
| 7035 | */ |
| 7036 | void SetCaptureMessage(bool value); |
| 7037 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7038 | /** |
| 7039 | * There are cases when the raw address of C++ TryCatch object cannot be |
| 7040 | * used for comparisons with addresses into the JS stack. The cases are: |
| 7041 | * 1) ARM, ARM64 and MIPS simulators which have separate JS stack. |
| 7042 | * 2) Address sanitizer allocates local C++ object in the heap when |
| 7043 | * UseAfterReturn mode is enabled. |
| 7044 | * This method returns address that can be used for comparisons with |
| 7045 | * addresses into the JS stack. When neither simulator nor ASAN's |
| 7046 | * UseAfterReturn is enabled, then the address returned will be the address |
| 7047 | * of the C++ try catch handler itself. |
| 7048 | */ |
| 7049 | static void* JSStackComparableAddress(v8::TryCatch* handler) { |
| 7050 | if (handler == NULL) return NULL; |
| 7051 | return handler->js_stack_comparable_address_; |
| 7052 | } |
| 7053 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7054 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7055 | void ResetInternal(); |
| 7056 | |
| 7057 | // Make it hard to create heap-allocated TryCatch blocks. |
| 7058 | TryCatch(const TryCatch&); |
| 7059 | void operator=(const TryCatch&); |
| 7060 | void* operator new(size_t size); |
| 7061 | void operator delete(void*, size_t); |
| 7062 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 7063 | v8::internal::Isolate* isolate_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7064 | v8::TryCatch* next_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7065 | void* exception_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7066 | void* message_obj_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7067 | void* js_stack_comparable_address_; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7068 | bool is_verbose_ : 1; |
| 7069 | bool can_continue_ : 1; |
| 7070 | bool capture_message_ : 1; |
| 7071 | bool rethrow_ : 1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7072 | bool has_terminated_ : 1; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7073 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7074 | friend class v8::internal::Isolate; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7075 | }; |
| 7076 | |
| 7077 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7078 | // --- Context --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7079 | |
| 7080 | |
| 7081 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7082 | * A container for extension names. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7083 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7084 | class V8_EXPORT ExtensionConfiguration { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7085 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7086 | ExtensionConfiguration() : name_count_(0), names_(NULL) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7087 | ExtensionConfiguration(int name_count, const char* names[]) |
| 7088 | : name_count_(name_count), names_(names) { } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7089 | |
| 7090 | const char** begin() const { return &names_[0]; } |
| 7091 | const char** end() const { return &names_[name_count_]; } |
| 7092 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7093 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7094 | const int name_count_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7095 | const char** names_; |
| 7096 | }; |
| 7097 | |
| 7098 | |
| 7099 | /** |
| 7100 | * A sandboxed execution context with its own set of built-in objects |
| 7101 | * and functions. |
| 7102 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7103 | class V8_EXPORT Context { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7104 | public: |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 7105 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7106 | * Returns the global proxy object. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 7107 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7108 | * Global proxy object is a thin wrapper whose prototype points to actual |
| 7109 | * context's global object with the properties like Object, etc. This is done |
| 7110 | * that way for security reasons (for more details see |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 7111 | * https://wiki.mozilla.org/Gecko:SplitWindow). |
| 7112 | * |
| 7113 | * Please note that changes to global proxy object prototype most probably |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7114 | * would break VM---v8 expects only global object as a prototype of global |
| 7115 | * proxy object. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 7116 | */ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7117 | Local<Object> Global(); |
| 7118 | |
| 7119 | /** |
| 7120 | * Detaches the global object from its context before |
| 7121 | * the global object can be reused to create a new context. |
| 7122 | */ |
| 7123 | void DetachGlobal(); |
| 7124 | |
Andrei Popescu | 74b3c14 | 2010-03-29 12:03:09 +0100 | [diff] [blame] | 7125 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7126 | * Creates a new context and returns a handle to the newly allocated |
| 7127 | * context. |
Andrei Popescu | 74b3c14 | 2010-03-29 12:03:09 +0100 | [diff] [blame] | 7128 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7129 | * \param isolate The isolate in which to create the context. |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 7130 | * |
| 7131 | * \param extensions An optional extension configuration containing |
| 7132 | * the extensions to be installed in the newly created context. |
| 7133 | * |
| 7134 | * \param global_template An optional object template from which the |
| 7135 | * global object for the newly created context will be created. |
| 7136 | * |
| 7137 | * \param global_object An optional global object to be reused for |
| 7138 | * the newly created context. This global object must have been |
| 7139 | * created by a previous call to Context::New with the same global |
| 7140 | * template. The state of the global object will be completely reset |
| 7141 | * and only object identify will remain. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 7142 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7143 | static Local<Context> New( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7144 | Isolate* isolate, ExtensionConfiguration* extensions = NULL, |
| 7145 | Local<ObjectTemplate> global_template = Local<ObjectTemplate>(), |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7146 | Local<Value> global_object = Local<Value>(), |
| 7147 | size_t context_snapshot_index = 0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7148 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7149 | /** |
| 7150 | * Sets the security token for the context. To access an object in |
| 7151 | * another context, the security tokens must match. |
| 7152 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7153 | void SetSecurityToken(Local<Value> token); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7154 | |
| 7155 | /** Restores the security token to the default value. */ |
| 7156 | void UseDefaultSecurityToken(); |
| 7157 | |
| 7158 | /** Returns the security token of this context.*/ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7159 | Local<Value> GetSecurityToken(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7160 | |
| 7161 | /** |
| 7162 | * Enter this context. After entering a context, all code compiled |
| 7163 | * and run is compiled and run in this context. If another context |
| 7164 | * is already entered, this old context is saved so it can be |
| 7165 | * restored when the new context is exited. |
| 7166 | */ |
| 7167 | void Enter(); |
| 7168 | |
| 7169 | /** |
| 7170 | * Exit this context. Exiting the current context restores the |
| 7171 | * context that was in place when entering the current context. |
| 7172 | */ |
| 7173 | void Exit(); |
| 7174 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7175 | /** Returns an isolate associated with a current context. */ |
| 7176 | v8::Isolate* GetIsolate(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7177 | |
| 7178 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7179 | * The field at kDebugIdIndex is reserved for V8 debugger implementation. |
| 7180 | * The value is propagated to the scripts compiled in given Context and |
| 7181 | * can be used for filtering scripts. |
| 7182 | */ |
| 7183 | enum EmbedderDataFields { kDebugIdIndex = 0 }; |
| 7184 | |
| 7185 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7186 | * Gets the embedder data with the given index, which must have been set by a |
| 7187 | * previous call to SetEmbedderData with the same index. Note that index 0 |
| 7188 | * currently has a special meaning for Chrome's debugger. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7189 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7190 | V8_INLINE Local<Value> GetEmbedderData(int index); |
| 7191 | |
| 7192 | /** |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7193 | * Gets the binding object used by V8 extras. Extra natives get a reference |
| 7194 | * to this object and can use it to "export" functionality by adding |
| 7195 | * properties. Extra natives can also "import" functionality by accessing |
| 7196 | * properties added by the embedder using the V8 API. |
| 7197 | */ |
| 7198 | Local<Object> GetExtrasBindingObject(); |
| 7199 | |
| 7200 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7201 | * Sets the embedder data with the given index, growing the data as |
| 7202 | * needed. Note that index 0 currently has a special meaning for Chrome's |
| 7203 | * debugger. |
| 7204 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7205 | void SetEmbedderData(int index, Local<Value> value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7206 | |
| 7207 | /** |
| 7208 | * Gets a 2-byte-aligned native pointer from the embedder data with the given |
| 7209 | * index, which must have bees set by a previous call to |
| 7210 | * SetAlignedPointerInEmbedderData with the same index. Note that index 0 |
| 7211 | * currently has a special meaning for Chrome's debugger. |
| 7212 | */ |
| 7213 | V8_INLINE void* GetAlignedPointerFromEmbedderData(int index); |
| 7214 | |
| 7215 | /** |
| 7216 | * Sets a 2-byte-aligned native pointer in the embedder data with the given |
| 7217 | * index, growing the data as needed. Note that index 0 currently has a |
| 7218 | * special meaning for Chrome's debugger. |
| 7219 | */ |
| 7220 | void SetAlignedPointerInEmbedderData(int index, void* value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7221 | |
| 7222 | /** |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7223 | * Control whether code generation from strings is allowed. Calling |
| 7224 | * this method with false will disable 'eval' and the 'Function' |
| 7225 | * constructor for code running in this context. If 'eval' or the |
| 7226 | * 'Function' constructor are used an exception will be thrown. |
| 7227 | * |
| 7228 | * If code generation from strings is not allowed the |
| 7229 | * V8::AllowCodeGenerationFromStrings callback will be invoked if |
| 7230 | * set before blocking the call to 'eval' or the 'Function' |
| 7231 | * constructor. If that callback returns true, the call will be |
| 7232 | * allowed, otherwise an exception will be thrown. If no callback is |
| 7233 | * set an exception will be thrown. |
| 7234 | */ |
| 7235 | void AllowCodeGenerationFromStrings(bool allow); |
| 7236 | |
| 7237 | /** |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7238 | * Returns true if code generation from strings is allowed for the context. |
| 7239 | * For more details see AllowCodeGenerationFromStrings(bool) documentation. |
| 7240 | */ |
| 7241 | bool IsCodeGenerationFromStringsAllowed(); |
| 7242 | |
| 7243 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7244 | * Sets the error description for the exception that is thrown when |
| 7245 | * code generation from strings is not allowed and 'eval' or the 'Function' |
| 7246 | * constructor are called. |
| 7247 | */ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7248 | void SetErrorMessageForCodeGenerationFromStrings(Local<String> message); |
| 7249 | |
| 7250 | /** |
| 7251 | * Estimate the memory in bytes retained by this context. |
| 7252 | */ |
| 7253 | size_t EstimatedSize(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7254 | |
| 7255 | /** |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7256 | * Stack-allocated class which sets the execution context for all |
| 7257 | * operations executed within a local scope. |
| 7258 | */ |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 7259 | class Scope { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7260 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7261 | explicit V8_INLINE Scope(Local<Context> context) : context_(context) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7262 | context_->Enter(); |
| 7263 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7264 | V8_INLINE ~Scope() { context_->Exit(); } |
| 7265 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7266 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7267 | Local<Context> context_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7268 | }; |
| 7269 | |
| 7270 | private: |
| 7271 | friend class Value; |
| 7272 | friend class Script; |
| 7273 | friend class Object; |
| 7274 | friend class Function; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7275 | |
| 7276 | Local<Value> SlowGetEmbedderData(int index); |
| 7277 | void* SlowGetAlignedPointerFromEmbedderData(int index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7278 | }; |
| 7279 | |
| 7280 | |
| 7281 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7282 | * Multiple threads in V8 are allowed, but only one thread at a time is allowed |
| 7283 | * to use any given V8 isolate, see the comments in the Isolate class. The |
| 7284 | * definition of 'using a V8 isolate' includes accessing handles or holding onto |
| 7285 | * object pointers obtained from V8 handles while in the particular V8 isolate. |
| 7286 | * It is up to the user of V8 to ensure, perhaps with locking, that this |
| 7287 | * constraint is not violated. In addition to any other synchronization |
| 7288 | * mechanism that may be used, the v8::Locker and v8::Unlocker classes must be |
| 7289 | * used to signal thead switches to V8. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7290 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7291 | * v8::Locker is a scoped lock object. While it's active, i.e. between its |
| 7292 | * construction and destruction, the current thread is allowed to use the locked |
| 7293 | * isolate. V8 guarantees that an isolate can be locked by at most one thread at |
| 7294 | * any time. In other words, the scope of a v8::Locker is a critical section. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7295 | * |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7296 | * Sample usage: |
| 7297 | * \code |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7298 | * ... |
| 7299 | * { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7300 | * v8::Locker locker(isolate); |
| 7301 | * v8::Isolate::Scope isolate_scope(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7302 | * ... |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7303 | * // Code using V8 and isolate goes here. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7304 | * ... |
| 7305 | * } // Destructor called here |
| 7306 | * \endcode |
| 7307 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7308 | * If you wish to stop using V8 in a thread A you can do this either by |
| 7309 | * destroying the v8::Locker object as above or by constructing a v8::Unlocker |
| 7310 | * object: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7311 | * |
| 7312 | * \code |
| 7313 | * { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7314 | * isolate->Exit(); |
| 7315 | * v8::Unlocker unlocker(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7316 | * ... |
| 7317 | * // Code not using V8 goes here while V8 can run in another thread. |
| 7318 | * ... |
| 7319 | * } // Destructor called here. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7320 | * isolate->Enter(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7321 | * \endcode |
| 7322 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7323 | * The Unlocker object is intended for use in a long-running callback from V8, |
| 7324 | * where you want to release the V8 lock for other threads to use. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7325 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7326 | * The v8::Locker is a recursive lock, i.e. you can lock more than once in a |
| 7327 | * given thread. This can be useful if you have code that can be called either |
| 7328 | * from code that holds the lock or from code that does not. The Unlocker is |
| 7329 | * not recursive so you can not have several Unlockers on the stack at once, and |
| 7330 | * you can not use an Unlocker in a thread that is not inside a Locker's scope. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7331 | * |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7332 | * An unlocker will unlock several lockers if it has to and reinstate the |
| 7333 | * correct depth of locking on its destruction, e.g.: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7334 | * |
| 7335 | * \code |
| 7336 | * // V8 not locked. |
| 7337 | * { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7338 | * v8::Locker locker(isolate); |
| 7339 | * Isolate::Scope isolate_scope(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7340 | * // V8 locked. |
| 7341 | * { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7342 | * v8::Locker another_locker(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7343 | * // V8 still locked (2 levels). |
| 7344 | * { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7345 | * isolate->Exit(); |
| 7346 | * v8::Unlocker unlocker(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7347 | * // V8 not locked. |
| 7348 | * } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7349 | * isolate->Enter(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7350 | * // V8 locked again (2 levels). |
| 7351 | * } |
| 7352 | * // V8 still locked (1 level). |
| 7353 | * } |
| 7354 | * // V8 Now no longer locked. |
| 7355 | * \endcode |
| 7356 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7357 | class V8_EXPORT Unlocker { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7358 | public: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7359 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7360 | * Initialize Unlocker for a given Isolate. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7361 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7362 | V8_INLINE explicit Unlocker(Isolate* isolate) { Initialize(isolate); } |
| 7363 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7364 | ~Unlocker(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7365 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7366 | void Initialize(Isolate* isolate); |
| 7367 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7368 | internal::Isolate* isolate_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7369 | }; |
| 7370 | |
| 7371 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7372 | class V8_EXPORT Locker { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7373 | public: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7374 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7375 | * Initialize Locker for a given Isolate. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7376 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7377 | V8_INLINE explicit Locker(Isolate* isolate) { Initialize(isolate); } |
| 7378 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7379 | ~Locker(); |
| 7380 | |
| 7381 | /** |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7382 | * Returns whether or not the locker for a given isolate, is locked by the |
| 7383 | * current thread. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7384 | */ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7385 | static bool IsLocked(Isolate* isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7386 | |
| 7387 | /** |
| 7388 | * Returns whether v8::Locker is being used by this V8 instance. |
| 7389 | */ |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 7390 | static bool IsActive(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7391 | |
| 7392 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7393 | void Initialize(Isolate* isolate); |
| 7394 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7395 | bool has_lock_; |
| 7396 | bool top_level_; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7397 | internal::Isolate* isolate_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7398 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7399 | // Disallow copying and assigning. |
| 7400 | Locker(const Locker&); |
| 7401 | void operator=(const Locker&); |
| 7402 | }; |
| 7403 | |
| 7404 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7405 | // --- Implementation --- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7406 | |
| 7407 | |
| 7408 | namespace internal { |
| 7409 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7410 | const int kApiPointerSize = sizeof(void*); // NOLINT |
| 7411 | const int kApiIntSize = sizeof(int); // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7412 | const int kApiInt64Size = sizeof(int64_t); // NOLINT |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7413 | |
| 7414 | // Tag information for HeapObject. |
| 7415 | const int kHeapObjectTag = 1; |
| 7416 | const int kHeapObjectTagSize = 2; |
| 7417 | const intptr_t kHeapObjectTagMask = (1 << kHeapObjectTagSize) - 1; |
| 7418 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7419 | // Tag information for Smi. |
| 7420 | const int kSmiTag = 0; |
| 7421 | const int kSmiTagSize = 1; |
| 7422 | const intptr_t kSmiTagMask = (1 << kSmiTagSize) - 1; |
| 7423 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 7424 | template <size_t ptr_size> struct SmiTagging; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7425 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7426 | template<int kSmiShiftSize> |
| 7427 | V8_INLINE internal::Object* IntToSmi(int value) { |
| 7428 | int smi_shift_bits = kSmiTagSize + kSmiShiftSize; |
| 7429 | uintptr_t tagged_value = |
| 7430 | (static_cast<uintptr_t>(value) << smi_shift_bits) | kSmiTag; |
| 7431 | return reinterpret_cast<internal::Object*>(tagged_value); |
| 7432 | } |
| 7433 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7434 | // Smi constants for 32-bit systems. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 7435 | template <> struct SmiTagging<4> { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7436 | enum { kSmiShiftSize = 0, kSmiValueSize = 31 }; |
| 7437 | static int SmiShiftSize() { return kSmiShiftSize; } |
| 7438 | static int SmiValueSize() { return kSmiValueSize; } |
| 7439 | V8_INLINE static int SmiToInt(const internal::Object* value) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7440 | int shift_bits = kSmiTagSize + kSmiShiftSize; |
| 7441 | // Throw away top 32 bits and shift down (requires >> to be sign extending). |
| 7442 | return static_cast<int>(reinterpret_cast<intptr_t>(value)) >> shift_bits; |
| 7443 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7444 | V8_INLINE static internal::Object* IntToSmi(int value) { |
| 7445 | return internal::IntToSmi<kSmiShiftSize>(value); |
| 7446 | } |
| 7447 | V8_INLINE static bool IsValidSmi(intptr_t value) { |
| 7448 | // To be representable as an tagged small integer, the two |
| 7449 | // most-significant bits of 'value' must be either 00 or 11 due to |
| 7450 | // sign-extension. To check this we add 01 to the two |
| 7451 | // most-significant bits, and check if the most-significant bit is 0 |
| 7452 | // |
| 7453 | // CAUTION: The original code below: |
| 7454 | // bool result = ((value + 0x40000000) & 0x80000000) == 0; |
| 7455 | // may lead to incorrect results according to the C language spec, and |
| 7456 | // in fact doesn't work correctly with gcc4.1.1 in some cases: The |
| 7457 | // compiler may produce undefined results in case of signed integer |
| 7458 | // overflow. The computation must be done w/ unsigned ints. |
| 7459 | return static_cast<uintptr_t>(value + 0x40000000U) < 0x80000000U; |
| 7460 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7461 | }; |
| 7462 | |
| 7463 | // Smi constants for 64-bit systems. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 7464 | template <> struct SmiTagging<8> { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7465 | enum { kSmiShiftSize = 31, kSmiValueSize = 32 }; |
| 7466 | static int SmiShiftSize() { return kSmiShiftSize; } |
| 7467 | static int SmiValueSize() { return kSmiValueSize; } |
| 7468 | V8_INLINE static int SmiToInt(const internal::Object* value) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7469 | int shift_bits = kSmiTagSize + kSmiShiftSize; |
| 7470 | // Shift down and throw away top 32 bits. |
| 7471 | return static_cast<int>(reinterpret_cast<intptr_t>(value) >> shift_bits); |
| 7472 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7473 | V8_INLINE static internal::Object* IntToSmi(int value) { |
| 7474 | return internal::IntToSmi<kSmiShiftSize>(value); |
| 7475 | } |
| 7476 | V8_INLINE static bool IsValidSmi(intptr_t value) { |
| 7477 | // To be representable as a long smi, the value must be a 32-bit integer. |
| 7478 | return (value == static_cast<int32_t>(value)); |
| 7479 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7480 | }; |
| 7481 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 7482 | typedef SmiTagging<kApiPointerSize> PlatformSmiTagging; |
| 7483 | const int kSmiShiftSize = PlatformSmiTagging::kSmiShiftSize; |
| 7484 | const int kSmiValueSize = PlatformSmiTagging::kSmiValueSize; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7485 | V8_INLINE static bool SmiValuesAre31Bits() { return kSmiValueSize == 31; } |
| 7486 | V8_INLINE static bool SmiValuesAre32Bits() { return kSmiValueSize == 32; } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7487 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7488 | /** |
| 7489 | * This class exports constants and functionality from within v8 that |
| 7490 | * is necessary to implement inline functions in the v8 api. Don't |
| 7491 | * depend on functions and constants defined here. |
| 7492 | */ |
| 7493 | class Internals { |
| 7494 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7495 | // These values match non-compiler-dependent values defined within |
| 7496 | // the implementation of v8. |
| 7497 | static const int kHeapObjectMapOffset = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7498 | static const int kMapInstanceTypeAndBitFieldOffset = |
| 7499 | 1 * kApiPointerSize + kApiIntSize; |
| 7500 | static const int kStringResourceOffset = 3 * kApiPointerSize; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7501 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7502 | static const int kOddballKindOffset = 5 * kApiPointerSize + sizeof(double); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7503 | static const int kForeignAddressOffset = kApiPointerSize; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 7504 | static const int kJSObjectHeaderSize = 3 * kApiPointerSize; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7505 | static const int kFixedArrayHeaderSize = 2 * kApiPointerSize; |
| 7506 | static const int kContextHeaderSize = 2 * kApiPointerSize; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7507 | static const int kContextEmbedderDataIndex = 5; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7508 | static const int kFullStringRepresentationMask = 0x07; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7509 | static const int kStringEncodingMask = 0x4; |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 7510 | static const int kExternalTwoByteRepresentationTag = 0x02; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7511 | static const int kExternalOneByteRepresentationTag = 0x06; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7512 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7513 | static const int kIsolateEmbedderDataOffset = 0 * kApiPointerSize; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7514 | static const int kExternalMemoryOffset = 4 * kApiPointerSize; |
| 7515 | static const int kExternalMemoryLimitOffset = |
| 7516 | kExternalMemoryOffset + kApiInt64Size; |
| 7517 | static const int kIsolateRootsOffset = kExternalMemoryLimitOffset + |
| 7518 | kApiInt64Size + kApiInt64Size + |
| 7519 | kApiPointerSize + kApiPointerSize; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7520 | static const int kUndefinedValueRootIndex = 4; |
| 7521 | static const int kTheHoleValueRootIndex = 5; |
| 7522 | static const int kNullValueRootIndex = 6; |
| 7523 | static const int kTrueValueRootIndex = 7; |
| 7524 | static const int kFalseValueRootIndex = 8; |
| 7525 | static const int kEmptyStringRootIndex = 9; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7526 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7527 | static const int kNodeClassIdOffset = 1 * kApiPointerSize; |
| 7528 | static const int kNodeFlagsOffset = 1 * kApiPointerSize + 3; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7529 | static const int kNodeStateMask = 0x7; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7530 | static const int kNodeStateIsWeakValue = 2; |
| 7531 | static const int kNodeStateIsPendingValue = 3; |
| 7532 | static const int kNodeStateIsNearDeathValue = 4; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7533 | static const int kNodeIsIndependentShift = 3; |
| 7534 | static const int kNodeIsPartiallyDependentShift = 4; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7535 | static const int kNodeIsActiveShift = 4; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7536 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7537 | static const int kJSObjectType = 0xb7; |
| 7538 | static const int kJSApiObjectType = 0xb6; |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 7539 | static const int kFirstNonstringType = 0x80; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7540 | static const int kOddballType = 0x83; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7541 | static const int kForeignType = 0x87; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7542 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7543 | static const int kUndefinedOddballKind = 5; |
| 7544 | static const int kNullOddballKind = 3; |
| 7545 | |
| 7546 | static const uint32_t kNumIsolateDataSlots = 4; |
| 7547 | |
| 7548 | V8_EXPORT static void CheckInitializedImpl(v8::Isolate* isolate); |
| 7549 | V8_INLINE static void CheckInitialized(v8::Isolate* isolate) { |
| 7550 | #ifdef V8_ENABLE_CHECKS |
| 7551 | CheckInitializedImpl(isolate); |
| 7552 | #endif |
| 7553 | } |
| 7554 | |
| 7555 | V8_INLINE static bool HasHeapObjectTag(const internal::Object* value) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7556 | return ((reinterpret_cast<intptr_t>(value) & kHeapObjectTagMask) == |
| 7557 | kHeapObjectTag); |
| 7558 | } |
| 7559 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7560 | V8_INLINE static int SmiValue(const internal::Object* value) { |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 7561 | return PlatformSmiTagging::SmiToInt(value); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7562 | } |
| 7563 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7564 | V8_INLINE static internal::Object* IntToSmi(int value) { |
| 7565 | return PlatformSmiTagging::IntToSmi(value); |
| 7566 | } |
| 7567 | |
| 7568 | V8_INLINE static bool IsValidSmi(intptr_t value) { |
| 7569 | return PlatformSmiTagging::IsValidSmi(value); |
| 7570 | } |
| 7571 | |
| 7572 | V8_INLINE static int GetInstanceType(const internal::Object* obj) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7573 | typedef internal::Object O; |
| 7574 | O* map = ReadField<O*>(obj, kHeapObjectMapOffset); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7575 | // Map::InstanceType is defined so that it will always be loaded into |
| 7576 | // the LS 8 bits of one 16-bit word, regardless of endianess. |
| 7577 | return ReadField<uint16_t>(map, kMapInstanceTypeAndBitFieldOffset) & 0xff; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 7578 | } |
| 7579 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7580 | V8_INLINE static int GetOddballKind(const internal::Object* obj) { |
| 7581 | typedef internal::Object O; |
| 7582 | return SmiValue(ReadField<O*>(obj, kOddballKindOffset)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 7583 | } |
| 7584 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7585 | V8_INLINE static bool IsExternalTwoByteString(int instance_type) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7586 | int representation = (instance_type & kFullStringRepresentationMask); |
| 7587 | return representation == kExternalTwoByteRepresentationTag; |
| 7588 | } |
| 7589 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7590 | V8_INLINE static uint8_t GetNodeFlag(internal::Object** obj, int shift) { |
| 7591 | uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset; |
| 7592 | return *addr & static_cast<uint8_t>(1U << shift); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7593 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7594 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7595 | V8_INLINE static void UpdateNodeFlag(internal::Object** obj, |
| 7596 | bool value, int shift) { |
| 7597 | uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset; |
| 7598 | uint8_t mask = static_cast<uint8_t>(1U << shift); |
| 7599 | *addr = static_cast<uint8_t>((*addr & ~mask) | (value << shift)); |
| 7600 | } |
| 7601 | |
| 7602 | V8_INLINE static uint8_t GetNodeState(internal::Object** obj) { |
| 7603 | uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset; |
| 7604 | return *addr & kNodeStateMask; |
| 7605 | } |
| 7606 | |
| 7607 | V8_INLINE static void UpdateNodeState(internal::Object** obj, |
| 7608 | uint8_t value) { |
| 7609 | uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset; |
| 7610 | *addr = static_cast<uint8_t>((*addr & ~kNodeStateMask) | value); |
| 7611 | } |
| 7612 | |
| 7613 | V8_INLINE static void SetEmbedderData(v8::Isolate* isolate, |
| 7614 | uint32_t slot, |
| 7615 | void* data) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7616 | uint8_t* addr = reinterpret_cast<uint8_t*>(isolate) + |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7617 | kIsolateEmbedderDataOffset + slot * kApiPointerSize; |
| 7618 | *reinterpret_cast<void**>(addr) = data; |
| 7619 | } |
| 7620 | |
| 7621 | V8_INLINE static void* GetEmbedderData(const v8::Isolate* isolate, |
| 7622 | uint32_t slot) { |
| 7623 | const uint8_t* addr = reinterpret_cast<const uint8_t*>(isolate) + |
| 7624 | kIsolateEmbedderDataOffset + slot * kApiPointerSize; |
| 7625 | return *reinterpret_cast<void* const*>(addr); |
| 7626 | } |
| 7627 | |
| 7628 | V8_INLINE static internal::Object** GetRoot(v8::Isolate* isolate, |
| 7629 | int index) { |
| 7630 | uint8_t* addr = reinterpret_cast<uint8_t*>(isolate) + kIsolateRootsOffset; |
| 7631 | return reinterpret_cast<internal::Object**>(addr + index * kApiPointerSize); |
| 7632 | } |
| 7633 | |
| 7634 | template <typename T> |
| 7635 | V8_INLINE static T ReadField(const internal::Object* ptr, int offset) { |
| 7636 | const uint8_t* addr = |
| 7637 | reinterpret_cast<const uint8_t*>(ptr) + offset - kHeapObjectTag; |
| 7638 | return *reinterpret_cast<const T*>(addr); |
| 7639 | } |
| 7640 | |
| 7641 | template <typename T> |
| 7642 | V8_INLINE static T ReadEmbedderData(const v8::Context* context, int index) { |
| 7643 | typedef internal::Object O; |
| 7644 | typedef internal::Internals I; |
| 7645 | O* ctx = *reinterpret_cast<O* const*>(context); |
| 7646 | int embedder_data_offset = I::kContextHeaderSize + |
| 7647 | (internal::kApiPointerSize * I::kContextEmbedderDataIndex); |
| 7648 | O* embedder_data = I::ReadField<O*>(ctx, embedder_data_offset); |
| 7649 | int value_offset = |
| 7650 | I::kFixedArrayHeaderSize + (internal::kApiPointerSize * index); |
| 7651 | return I::ReadField<T>(embedder_data, value_offset); |
| 7652 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7653 | }; |
| 7654 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 7655 | } // namespace internal |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7656 | |
| 7657 | |
| 7658 | template <class T> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7659 | Local<T> Local<T>::New(Isolate* isolate, Local<T> that) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7660 | return New(isolate, that.val_); |
| 7661 | } |
| 7662 | |
| 7663 | template <class T> |
| 7664 | Local<T> Local<T>::New(Isolate* isolate, const PersistentBase<T>& that) { |
| 7665 | return New(isolate, that.val_); |
| 7666 | } |
| 7667 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7668 | |
| 7669 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7670 | Local<T> Local<T>::New(Isolate* isolate, T* that) { |
| 7671 | if (that == NULL) return Local<T>(); |
| 7672 | T* that_ptr = that; |
| 7673 | internal::Object** p = reinterpret_cast<internal::Object**>(that_ptr); |
| 7674 | return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle( |
| 7675 | reinterpret_cast<internal::Isolate*>(isolate), *p))); |
| 7676 | } |
| 7677 | |
| 7678 | |
| 7679 | template<class T> |
| 7680 | template<class S> |
| 7681 | void Eternal<T>::Set(Isolate* isolate, Local<S> handle) { |
| 7682 | TYPE_CHECK(T, S); |
| 7683 | V8::Eternalize(isolate, reinterpret_cast<Value*>(*handle), &this->index_); |
| 7684 | } |
| 7685 | |
| 7686 | |
| 7687 | template<class T> |
| 7688 | Local<T> Eternal<T>::Get(Isolate* isolate) { |
| 7689 | return Local<T>(reinterpret_cast<T*>(*V8::GetEternal(isolate, index_))); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7690 | } |
| 7691 | |
| 7692 | |
| 7693 | template <class T> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7694 | Local<T> MaybeLocal<T>::ToLocalChecked() { |
| 7695 | if (V8_UNLIKELY(val_ == nullptr)) V8::ToLocalEmpty(); |
| 7696 | return Local<T>(val_); |
| 7697 | } |
| 7698 | |
| 7699 | |
| 7700 | template <class T> |
| 7701 | void* WeakCallbackInfo<T>::GetInternalField(int index) const { |
| 7702 | #ifdef V8_ENABLE_CHECKS |
| 7703 | if (index < 0 || index >= kInternalFieldsInWeakCallback) { |
| 7704 | V8::InternalFieldOutOfBounds(index); |
| 7705 | } |
| 7706 | #endif |
| 7707 | return internal_fields_[index]; |
| 7708 | } |
| 7709 | |
| 7710 | |
| 7711 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7712 | T* PersistentBase<T>::New(Isolate* isolate, T* that) { |
| 7713 | if (that == NULL) return NULL; |
| 7714 | internal::Object** p = reinterpret_cast<internal::Object**>(that); |
| 7715 | return reinterpret_cast<T*>( |
| 7716 | V8::GlobalizeReference(reinterpret_cast<internal::Isolate*>(isolate), |
| 7717 | p)); |
| 7718 | } |
| 7719 | |
| 7720 | |
| 7721 | template <class T, class M> |
| 7722 | template <class S, class M2> |
| 7723 | void Persistent<T, M>::Copy(const Persistent<S, M2>& that) { |
| 7724 | TYPE_CHECK(T, S); |
| 7725 | this->Reset(); |
| 7726 | if (that.IsEmpty()) return; |
| 7727 | internal::Object** p = reinterpret_cast<internal::Object**>(that.val_); |
| 7728 | this->val_ = reinterpret_cast<T*>(V8::CopyPersistent(p)); |
| 7729 | M::Copy(that, this); |
| 7730 | } |
| 7731 | |
| 7732 | |
| 7733 | template <class T> |
| 7734 | bool PersistentBase<T>::IsIndependent() const { |
| 7735 | typedef internal::Internals I; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7736 | if (this->IsEmpty()) return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7737 | return I::GetNodeFlag(reinterpret_cast<internal::Object**>(this->val_), |
| 7738 | I::kNodeIsIndependentShift); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7739 | } |
| 7740 | |
| 7741 | |
| 7742 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7743 | bool PersistentBase<T>::IsNearDeath() const { |
| 7744 | typedef internal::Internals I; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7745 | if (this->IsEmpty()) return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7746 | uint8_t node_state = |
| 7747 | I::GetNodeState(reinterpret_cast<internal::Object**>(this->val_)); |
| 7748 | return node_state == I::kNodeStateIsNearDeathValue || |
| 7749 | node_state == I::kNodeStateIsPendingValue; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7750 | } |
| 7751 | |
| 7752 | |
| 7753 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7754 | bool PersistentBase<T>::IsWeak() const { |
| 7755 | typedef internal::Internals I; |
| 7756 | if (this->IsEmpty()) return false; |
| 7757 | return I::GetNodeState(reinterpret_cast<internal::Object**>(this->val_)) == |
| 7758 | I::kNodeStateIsWeakValue; |
| 7759 | } |
| 7760 | |
| 7761 | |
| 7762 | template <class T> |
| 7763 | void PersistentBase<T>::Reset() { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7764 | if (this->IsEmpty()) return; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7765 | V8::DisposeGlobal(reinterpret_cast<internal::Object**>(this->val_)); |
| 7766 | val_ = 0; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7767 | } |
| 7768 | |
| 7769 | |
| 7770 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7771 | template <class S> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7772 | void PersistentBase<T>::Reset(Isolate* isolate, const Local<S>& other) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7773 | TYPE_CHECK(T, S); |
| 7774 | Reset(); |
| 7775 | if (other.IsEmpty()) return; |
| 7776 | this->val_ = New(isolate, other.val_); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7777 | } |
| 7778 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7779 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7780 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7781 | template <class S> |
| 7782 | void PersistentBase<T>::Reset(Isolate* isolate, |
| 7783 | const PersistentBase<S>& other) { |
| 7784 | TYPE_CHECK(T, S); |
| 7785 | Reset(); |
| 7786 | if (other.IsEmpty()) return; |
| 7787 | this->val_ = New(isolate, other.val_); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7788 | } |
| 7789 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7790 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 7791 | template <class T> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7792 | template <typename P> |
| 7793 | V8_INLINE void PersistentBase<T>::SetWeak( |
| 7794 | P* parameter, typename WeakCallbackInfo<P>::Callback callback, |
| 7795 | WeakCallbackType type) { |
| 7796 | typedef typename WeakCallbackInfo<void>::Callback Callback; |
| 7797 | V8::MakeWeak(reinterpret_cast<internal::Object**>(this->val_), parameter, |
| 7798 | reinterpret_cast<Callback>(callback), type); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7799 | } |
| 7800 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7801 | template <class T> |
| 7802 | void PersistentBase<T>::SetWeak() { |
| 7803 | V8::MakeWeak(reinterpret_cast<internal::Object***>(&this->val_)); |
| 7804 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7805 | |
| 7806 | template <class T> |
| 7807 | template <typename P> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7808 | P* PersistentBase<T>::ClearWeak() { |
| 7809 | return reinterpret_cast<P*>( |
| 7810 | V8::ClearWeak(reinterpret_cast<internal::Object**>(this->val_))); |
| 7811 | } |
| 7812 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7813 | template <class T> |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7814 | void PersistentBase<T>::RegisterExternalReference(Isolate* isolate) const { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7815 | if (IsEmpty()) return; |
| 7816 | V8::RegisterExternallyReferencedObject( |
| 7817 | reinterpret_cast<internal::Object**>(this->val_), |
| 7818 | reinterpret_cast<internal::Isolate*>(isolate)); |
| 7819 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7820 | |
| 7821 | template <class T> |
| 7822 | void PersistentBase<T>::MarkIndependent() { |
| 7823 | typedef internal::Internals I; |
| 7824 | if (this->IsEmpty()) return; |
| 7825 | I::UpdateNodeFlag(reinterpret_cast<internal::Object**>(this->val_), |
| 7826 | true, |
| 7827 | I::kNodeIsIndependentShift); |
| 7828 | } |
| 7829 | |
| 7830 | |
| 7831 | template <class T> |
| 7832 | void PersistentBase<T>::MarkPartiallyDependent() { |
| 7833 | typedef internal::Internals I; |
| 7834 | if (this->IsEmpty()) return; |
| 7835 | I::UpdateNodeFlag(reinterpret_cast<internal::Object**>(this->val_), |
| 7836 | true, |
| 7837 | I::kNodeIsPartiallyDependentShift); |
| 7838 | } |
| 7839 | |
| 7840 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7841 | template <class T> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7842 | void PersistentBase<T>::MarkActive() { |
| 7843 | typedef internal::Internals I; |
| 7844 | if (this->IsEmpty()) return; |
| 7845 | I::UpdateNodeFlag(reinterpret_cast<internal::Object**>(this->val_), true, |
| 7846 | I::kNodeIsActiveShift); |
| 7847 | } |
| 7848 | |
| 7849 | |
| 7850 | template <class T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7851 | void PersistentBase<T>::SetWrapperClassId(uint16_t class_id) { |
| 7852 | typedef internal::Internals I; |
| 7853 | if (this->IsEmpty()) return; |
| 7854 | internal::Object** obj = reinterpret_cast<internal::Object**>(this->val_); |
| 7855 | uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + I::kNodeClassIdOffset; |
| 7856 | *reinterpret_cast<uint16_t*>(addr) = class_id; |
| 7857 | } |
| 7858 | |
| 7859 | |
| 7860 | template <class T> |
| 7861 | uint16_t PersistentBase<T>::WrapperClassId() const { |
| 7862 | typedef internal::Internals I; |
| 7863 | if (this->IsEmpty()) return 0; |
| 7864 | internal::Object** obj = reinterpret_cast<internal::Object**>(this->val_); |
| 7865 | uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + I::kNodeClassIdOffset; |
| 7866 | return *reinterpret_cast<uint16_t*>(addr); |
| 7867 | } |
| 7868 | |
| 7869 | |
| 7870 | template<typename T> |
| 7871 | ReturnValue<T>::ReturnValue(internal::Object** slot) : value_(slot) {} |
| 7872 | |
| 7873 | template<typename T> |
| 7874 | template<typename S> |
| 7875 | void ReturnValue<T>::Set(const Persistent<S>& handle) { |
| 7876 | TYPE_CHECK(T, S); |
| 7877 | if (V8_UNLIKELY(handle.IsEmpty())) { |
| 7878 | *value_ = GetDefaultValue(); |
| 7879 | } else { |
| 7880 | *value_ = *reinterpret_cast<internal::Object**>(*handle); |
| 7881 | } |
| 7882 | } |
| 7883 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7884 | template <typename T> |
| 7885 | template <typename S> |
| 7886 | void ReturnValue<T>::Set(const Global<S>& handle) { |
| 7887 | TYPE_CHECK(T, S); |
| 7888 | if (V8_UNLIKELY(handle.IsEmpty())) { |
| 7889 | *value_ = GetDefaultValue(); |
| 7890 | } else { |
| 7891 | *value_ = *reinterpret_cast<internal::Object**>(*handle); |
| 7892 | } |
| 7893 | } |
| 7894 | |
| 7895 | template <typename T> |
| 7896 | template <typename S> |
| 7897 | void ReturnValue<T>::Set(const Local<S> handle) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7898 | TYPE_CHECK(T, S); |
| 7899 | if (V8_UNLIKELY(handle.IsEmpty())) { |
| 7900 | *value_ = GetDefaultValue(); |
| 7901 | } else { |
| 7902 | *value_ = *reinterpret_cast<internal::Object**>(*handle); |
| 7903 | } |
| 7904 | } |
| 7905 | |
| 7906 | template<typename T> |
| 7907 | void ReturnValue<T>::Set(double i) { |
| 7908 | TYPE_CHECK(T, Number); |
| 7909 | Set(Number::New(GetIsolate(), i)); |
| 7910 | } |
| 7911 | |
| 7912 | template<typename T> |
| 7913 | void ReturnValue<T>::Set(int32_t i) { |
| 7914 | TYPE_CHECK(T, Integer); |
| 7915 | typedef internal::Internals I; |
| 7916 | if (V8_LIKELY(I::IsValidSmi(i))) { |
| 7917 | *value_ = I::IntToSmi(i); |
| 7918 | return; |
| 7919 | } |
| 7920 | Set(Integer::New(GetIsolate(), i)); |
| 7921 | } |
| 7922 | |
| 7923 | template<typename T> |
| 7924 | void ReturnValue<T>::Set(uint32_t i) { |
| 7925 | TYPE_CHECK(T, Integer); |
| 7926 | // Can't simply use INT32_MAX here for whatever reason. |
| 7927 | bool fits_into_int32_t = (i & (1U << 31)) == 0; |
| 7928 | if (V8_LIKELY(fits_into_int32_t)) { |
| 7929 | Set(static_cast<int32_t>(i)); |
| 7930 | return; |
| 7931 | } |
| 7932 | Set(Integer::NewFromUnsigned(GetIsolate(), i)); |
| 7933 | } |
| 7934 | |
| 7935 | template<typename T> |
| 7936 | void ReturnValue<T>::Set(bool value) { |
| 7937 | TYPE_CHECK(T, Boolean); |
| 7938 | typedef internal::Internals I; |
| 7939 | int root_index; |
| 7940 | if (value) { |
| 7941 | root_index = I::kTrueValueRootIndex; |
| 7942 | } else { |
| 7943 | root_index = I::kFalseValueRootIndex; |
| 7944 | } |
| 7945 | *value_ = *I::GetRoot(GetIsolate(), root_index); |
| 7946 | } |
| 7947 | |
| 7948 | template<typename T> |
| 7949 | void ReturnValue<T>::SetNull() { |
| 7950 | TYPE_CHECK(T, Primitive); |
| 7951 | typedef internal::Internals I; |
| 7952 | *value_ = *I::GetRoot(GetIsolate(), I::kNullValueRootIndex); |
| 7953 | } |
| 7954 | |
| 7955 | template<typename T> |
| 7956 | void ReturnValue<T>::SetUndefined() { |
| 7957 | TYPE_CHECK(T, Primitive); |
| 7958 | typedef internal::Internals I; |
| 7959 | *value_ = *I::GetRoot(GetIsolate(), I::kUndefinedValueRootIndex); |
| 7960 | } |
| 7961 | |
| 7962 | template<typename T> |
| 7963 | void ReturnValue<T>::SetEmptyString() { |
| 7964 | TYPE_CHECK(T, String); |
| 7965 | typedef internal::Internals I; |
| 7966 | *value_ = *I::GetRoot(GetIsolate(), I::kEmptyStringRootIndex); |
| 7967 | } |
| 7968 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7969 | template <typename T> |
| 7970 | Isolate* ReturnValue<T>::GetIsolate() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7971 | // Isolate is always the pointer below the default value on the stack. |
| 7972 | return *reinterpret_cast<Isolate**>(&value_[-2]); |
| 7973 | } |
| 7974 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7975 | template <typename T> |
| 7976 | Local<Value> ReturnValue<T>::Get() const { |
| 7977 | typedef internal::Internals I; |
| 7978 | if (*value_ == *I::GetRoot(GetIsolate(), I::kTheHoleValueRootIndex)) |
| 7979 | return Local<Value>(*Undefined(GetIsolate())); |
| 7980 | return Local<Value>::New(GetIsolate(), reinterpret_cast<Value*>(value_)); |
| 7981 | } |
| 7982 | |
| 7983 | template <typename T> |
| 7984 | template <typename S> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7985 | void ReturnValue<T>::Set(S* whatever) { |
| 7986 | // Uncompilable to prevent inadvertent misuse. |
| 7987 | TYPE_CHECK(S*, Primitive); |
| 7988 | } |
| 7989 | |
| 7990 | template<typename T> |
| 7991 | internal::Object* ReturnValue<T>::GetDefaultValue() { |
| 7992 | // Default value is always the pointer below value_ on the stack. |
| 7993 | return value_[-1]; |
| 7994 | } |
| 7995 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7996 | template <typename T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7997 | FunctionCallbackInfo<T>::FunctionCallbackInfo(internal::Object** implicit_args, |
| 7998 | internal::Object** values, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7999 | int length) |
| 8000 | : implicit_args_(implicit_args), values_(values), length_(length) {} |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 8001 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8002 | template<typename T> |
| 8003 | Local<Value> FunctionCallbackInfo<T>::operator[](int i) const { |
| 8004 | if (i < 0 || length_ <= i) return Local<Value>(*Undefined(GetIsolate())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8005 | return Local<Value>(reinterpret_cast<Value*>(values_ - i)); |
| 8006 | } |
| 8007 | |
| 8008 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8009 | template<typename T> |
| 8010 | Local<Function> FunctionCallbackInfo<T>::Callee() const { |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 8011 | return Local<Function>(reinterpret_cast<Function*>( |
| 8012 | &implicit_args_[kCalleeIndex])); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8013 | } |
| 8014 | |
| 8015 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8016 | template<typename T> |
| 8017 | Local<Object> FunctionCallbackInfo<T>::This() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8018 | return Local<Object>(reinterpret_cast<Object*>(values_ + 1)); |
| 8019 | } |
| 8020 | |
| 8021 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8022 | template<typename T> |
| 8023 | Local<Object> FunctionCallbackInfo<T>::Holder() const { |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 8024 | return Local<Object>(reinterpret_cast<Object*>( |
| 8025 | &implicit_args_[kHolderIndex])); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8026 | } |
| 8027 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 8028 | template <typename T> |
| 8029 | Local<Value> FunctionCallbackInfo<T>::NewTarget() const { |
| 8030 | return Local<Value>( |
| 8031 | reinterpret_cast<Value*>(&implicit_args_[kNewTargetIndex])); |
| 8032 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8033 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 8034 | template <typename T> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8035 | Local<Value> FunctionCallbackInfo<T>::Data() const { |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 8036 | return Local<Value>(reinterpret_cast<Value*>(&implicit_args_[kDataIndex])); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8037 | } |
| 8038 | |
| 8039 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8040 | template<typename T> |
| 8041 | Isolate* FunctionCallbackInfo<T>::GetIsolate() const { |
| 8042 | return *reinterpret_cast<Isolate**>(&implicit_args_[kIsolateIndex]); |
| 8043 | } |
| 8044 | |
| 8045 | |
| 8046 | template<typename T> |
| 8047 | ReturnValue<T> FunctionCallbackInfo<T>::GetReturnValue() const { |
| 8048 | return ReturnValue<T>(&implicit_args_[kReturnValueIndex]); |
| 8049 | } |
| 8050 | |
| 8051 | |
| 8052 | template<typename T> |
| 8053 | bool FunctionCallbackInfo<T>::IsConstructCall() const { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 8054 | return !NewTarget()->IsUndefined(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8055 | } |
| 8056 | |
| 8057 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8058 | template<typename T> |
| 8059 | int FunctionCallbackInfo<T>::Length() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8060 | return length_; |
| 8061 | } |
| 8062 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8063 | ScriptOrigin::ScriptOrigin(Local<Value> resource_name, |
| 8064 | Local<Integer> resource_line_offset, |
| 8065 | Local<Integer> resource_column_offset, |
| 8066 | Local<Boolean> resource_is_shared_cross_origin, |
| 8067 | Local<Integer> script_id, |
| 8068 | Local<Boolean> resource_is_embedder_debug_script, |
| 8069 | Local<Value> source_map_url, |
| 8070 | Local<Boolean> resource_is_opaque) |
| 8071 | : resource_name_(resource_name), |
| 8072 | resource_line_offset_(resource_line_offset), |
| 8073 | resource_column_offset_(resource_column_offset), |
| 8074 | options_(!resource_is_embedder_debug_script.IsEmpty() && |
| 8075 | resource_is_embedder_debug_script->IsTrue(), |
| 8076 | !resource_is_shared_cross_origin.IsEmpty() && |
| 8077 | resource_is_shared_cross_origin->IsTrue(), |
| 8078 | !resource_is_opaque.IsEmpty() && resource_is_opaque->IsTrue()), |
| 8079 | script_id_(script_id), |
| 8080 | source_map_url_(source_map_url) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8081 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8082 | Local<Value> ScriptOrigin::ResourceName() const { return resource_name_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8083 | |
| 8084 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8085 | Local<Integer> ScriptOrigin::ResourceLineOffset() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8086 | return resource_line_offset_; |
| 8087 | } |
| 8088 | |
| 8089 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8090 | Local<Integer> ScriptOrigin::ResourceColumnOffset() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8091 | return resource_column_offset_; |
| 8092 | } |
| 8093 | |
| 8094 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8095 | Local<Integer> ScriptOrigin::ScriptID() const { return script_id_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8096 | |
| 8097 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8098 | Local<Value> ScriptOrigin::SourceMapUrl() const { return source_map_url_; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8099 | |
| 8100 | |
| 8101 | ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin, |
| 8102 | CachedData* data) |
| 8103 | : source_string(string), |
| 8104 | resource_name(origin.ResourceName()), |
| 8105 | resource_line_offset(origin.ResourceLineOffset()), |
| 8106 | resource_column_offset(origin.ResourceColumnOffset()), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8107 | resource_options(origin.Options()), |
| 8108 | source_map_url(origin.SourceMapUrl()), |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8109 | cached_data(data) {} |
| 8110 | |
| 8111 | |
| 8112 | ScriptCompiler::Source::Source(Local<String> string, |
| 8113 | CachedData* data) |
| 8114 | : source_string(string), cached_data(data) {} |
| 8115 | |
| 8116 | |
| 8117 | ScriptCompiler::Source::~Source() { |
| 8118 | delete cached_data; |
| 8119 | } |
| 8120 | |
| 8121 | |
| 8122 | const ScriptCompiler::CachedData* ScriptCompiler::Source::GetCachedData() |
| 8123 | const { |
| 8124 | return cached_data; |
| 8125 | } |
| 8126 | |
| 8127 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8128 | Local<Boolean> Boolean::New(Isolate* isolate, bool value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8129 | return value ? True(isolate) : False(isolate); |
| 8130 | } |
| 8131 | |
| 8132 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8133 | void Template::Set(Isolate* isolate, const char* name, v8::Local<Data> value) { |
| 8134 | Set(v8::String::NewFromUtf8(isolate, name, NewStringType::kNormal) |
| 8135 | .ToLocalChecked(), |
| 8136 | value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8137 | } |
| 8138 | |
| 8139 | |
| 8140 | Local<Value> Object::GetInternalField(int index) { |
| 8141 | #ifndef V8_ENABLE_CHECKS |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8142 | typedef internal::Object O; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8143 | typedef internal::HeapObject HO; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8144 | typedef internal::Internals I; |
| 8145 | O* obj = *reinterpret_cast<O**>(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8146 | // Fast path: If the object is a plain JSObject, which is the common case, we |
| 8147 | // know where to find the internal fields and can return the value directly. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 8148 | auto instance_type = I::GetInstanceType(obj); |
| 8149 | if (instance_type == I::kJSObjectType || |
| 8150 | instance_type == I::kJSApiObjectType) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 8151 | int offset = I::kJSObjectHeaderSize + (internal::kApiPointerSize * index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8152 | O* value = I::ReadField<O*>(obj, offset); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8153 | O** result = HandleScope::CreateHandle(reinterpret_cast<HO*>(obj), value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8154 | return Local<Value>(reinterpret_cast<Value*>(result)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8155 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8156 | #endif |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8157 | return SlowGetInternalField(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8158 | } |
| 8159 | |
| 8160 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8161 | void* Object::GetAlignedPointerFromInternalField(int index) { |
| 8162 | #ifndef V8_ENABLE_CHECKS |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 8163 | typedef internal::Object O; |
| 8164 | typedef internal::Internals I; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 8165 | O* obj = *reinterpret_cast<O**>(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8166 | // Fast path: If the object is a plain JSObject, which is the common case, we |
| 8167 | // know where to find the internal fields and can return the value directly. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 8168 | auto instance_type = I::GetInstanceType(obj); |
| 8169 | if (V8_LIKELY(instance_type == I::kJSObjectType || |
| 8170 | instance_type == I::kJSApiObjectType)) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 8171 | int offset = I::kJSObjectHeaderSize + (internal::kApiPointerSize * index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8172 | return I::ReadField<void*>(obj, offset); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 8173 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8174 | #endif |
| 8175 | return SlowGetAlignedPointerFromInternalField(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8176 | } |
| 8177 | |
| 8178 | |
| 8179 | String* String::Cast(v8::Value* value) { |
| 8180 | #ifdef V8_ENABLE_CHECKS |
| 8181 | CheckCast(value); |
| 8182 | #endif |
| 8183 | return static_cast<String*>(value); |
| 8184 | } |
| 8185 | |
| 8186 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8187 | Local<String> String::Empty(Isolate* isolate) { |
| 8188 | typedef internal::Object* S; |
| 8189 | typedef internal::Internals I; |
| 8190 | I::CheckInitialized(isolate); |
| 8191 | S* slot = I::GetRoot(isolate, I::kEmptyStringRootIndex); |
| 8192 | return Local<String>(reinterpret_cast<String*>(slot)); |
| 8193 | } |
| 8194 | |
| 8195 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8196 | String::ExternalStringResource* String::GetExternalStringResource() const { |
| 8197 | typedef internal::Object O; |
| 8198 | typedef internal::Internals I; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8199 | O* obj = *reinterpret_cast<O* const*>(this); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8200 | String::ExternalStringResource* result; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 8201 | if (I::IsExternalTwoByteString(I::GetInstanceType(obj))) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8202 | void* value = I::ReadField<void*>(obj, I::kStringResourceOffset); |
| 8203 | result = reinterpret_cast<String::ExternalStringResource*>(value); |
| 8204 | } else { |
| 8205 | result = NULL; |
| 8206 | } |
| 8207 | #ifdef V8_ENABLE_CHECKS |
| 8208 | VerifyExternalStringResource(result); |
| 8209 | #endif |
| 8210 | return result; |
| 8211 | } |
| 8212 | |
| 8213 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8214 | String::ExternalStringResourceBase* String::GetExternalStringResourceBase( |
| 8215 | String::Encoding* encoding_out) const { |
| 8216 | typedef internal::Object O; |
| 8217 | typedef internal::Internals I; |
| 8218 | O* obj = *reinterpret_cast<O* const*>(this); |
| 8219 | int type = I::GetInstanceType(obj) & I::kFullStringRepresentationMask; |
| 8220 | *encoding_out = static_cast<Encoding>(type & I::kStringEncodingMask); |
| 8221 | ExternalStringResourceBase* resource = NULL; |
| 8222 | if (type == I::kExternalOneByteRepresentationTag || |
| 8223 | type == I::kExternalTwoByteRepresentationTag) { |
| 8224 | void* value = I::ReadField<void*>(obj, I::kStringResourceOffset); |
| 8225 | resource = static_cast<ExternalStringResourceBase*>(value); |
| 8226 | } |
| 8227 | #ifdef V8_ENABLE_CHECKS |
| 8228 | VerifyExternalStringResourceBase(resource, *encoding_out); |
| 8229 | #endif |
| 8230 | return resource; |
| 8231 | } |
| 8232 | |
| 8233 | |
| 8234 | bool Value::IsUndefined() const { |
| 8235 | #ifdef V8_ENABLE_CHECKS |
| 8236 | return FullIsUndefined(); |
| 8237 | #else |
| 8238 | return QuickIsUndefined(); |
| 8239 | #endif |
| 8240 | } |
| 8241 | |
| 8242 | bool Value::QuickIsUndefined() const { |
| 8243 | typedef internal::Object O; |
| 8244 | typedef internal::Internals I; |
| 8245 | O* obj = *reinterpret_cast<O* const*>(this); |
| 8246 | if (!I::HasHeapObjectTag(obj)) return false; |
| 8247 | if (I::GetInstanceType(obj) != I::kOddballType) return false; |
| 8248 | return (I::GetOddballKind(obj) == I::kUndefinedOddballKind); |
| 8249 | } |
| 8250 | |
| 8251 | |
| 8252 | bool Value::IsNull() const { |
| 8253 | #ifdef V8_ENABLE_CHECKS |
| 8254 | return FullIsNull(); |
| 8255 | #else |
| 8256 | return QuickIsNull(); |
| 8257 | #endif |
| 8258 | } |
| 8259 | |
| 8260 | bool Value::QuickIsNull() const { |
| 8261 | typedef internal::Object O; |
| 8262 | typedef internal::Internals I; |
| 8263 | O* obj = *reinterpret_cast<O* const*>(this); |
| 8264 | if (!I::HasHeapObjectTag(obj)) return false; |
| 8265 | if (I::GetInstanceType(obj) != I::kOddballType) return false; |
| 8266 | return (I::GetOddballKind(obj) == I::kNullOddballKind); |
| 8267 | } |
| 8268 | |
| 8269 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8270 | bool Value::IsString() const { |
| 8271 | #ifdef V8_ENABLE_CHECKS |
| 8272 | return FullIsString(); |
| 8273 | #else |
| 8274 | return QuickIsString(); |
| 8275 | #endif |
| 8276 | } |
| 8277 | |
| 8278 | bool Value::QuickIsString() const { |
| 8279 | typedef internal::Object O; |
| 8280 | typedef internal::Internals I; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8281 | O* obj = *reinterpret_cast<O* const*>(this); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8282 | if (!I::HasHeapObjectTag(obj)) return false; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 8283 | return (I::GetInstanceType(obj) < I::kFirstNonstringType); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8284 | } |
| 8285 | |
| 8286 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8287 | template <class T> Value* Value::Cast(T* value) { |
| 8288 | return static_cast<Value*>(value); |
| 8289 | } |
| 8290 | |
| 8291 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8292 | Local<Boolean> Value::ToBoolean() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8293 | return ToBoolean(Isolate::GetCurrent()->GetCurrentContext()) |
| 8294 | .FromMaybe(Local<Boolean>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8295 | } |
| 8296 | |
| 8297 | |
| 8298 | Local<Number> Value::ToNumber() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8299 | return ToNumber(Isolate::GetCurrent()->GetCurrentContext()) |
| 8300 | .FromMaybe(Local<Number>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8301 | } |
| 8302 | |
| 8303 | |
| 8304 | Local<String> Value::ToString() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8305 | return ToString(Isolate::GetCurrent()->GetCurrentContext()) |
| 8306 | .FromMaybe(Local<String>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8307 | } |
| 8308 | |
| 8309 | |
| 8310 | Local<String> Value::ToDetailString() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8311 | return ToDetailString(Isolate::GetCurrent()->GetCurrentContext()) |
| 8312 | .FromMaybe(Local<String>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8313 | } |
| 8314 | |
| 8315 | |
| 8316 | Local<Object> Value::ToObject() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8317 | return ToObject(Isolate::GetCurrent()->GetCurrentContext()) |
| 8318 | .FromMaybe(Local<Object>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8319 | } |
| 8320 | |
| 8321 | |
| 8322 | Local<Integer> Value::ToInteger() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8323 | return ToInteger(Isolate::GetCurrent()->GetCurrentContext()) |
| 8324 | .FromMaybe(Local<Integer>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8325 | } |
| 8326 | |
| 8327 | |
| 8328 | Local<Uint32> Value::ToUint32() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8329 | return ToUint32(Isolate::GetCurrent()->GetCurrentContext()) |
| 8330 | .FromMaybe(Local<Uint32>()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8331 | } |
| 8332 | |
| 8333 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8334 | Local<Int32> Value::ToInt32() const { |
| 8335 | return ToInt32(Isolate::GetCurrent()->GetCurrentContext()) |
| 8336 | .FromMaybe(Local<Int32>()); |
| 8337 | } |
| 8338 | |
| 8339 | |
| 8340 | Boolean* Boolean::Cast(v8::Value* value) { |
| 8341 | #ifdef V8_ENABLE_CHECKS |
| 8342 | CheckCast(value); |
| 8343 | #endif |
| 8344 | return static_cast<Boolean*>(value); |
| 8345 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8346 | |
| 8347 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8348 | Name* Name::Cast(v8::Value* value) { |
| 8349 | #ifdef V8_ENABLE_CHECKS |
| 8350 | CheckCast(value); |
| 8351 | #endif |
| 8352 | return static_cast<Name*>(value); |
| 8353 | } |
| 8354 | |
| 8355 | |
| 8356 | Symbol* Symbol::Cast(v8::Value* value) { |
| 8357 | #ifdef V8_ENABLE_CHECKS |
| 8358 | CheckCast(value); |
| 8359 | #endif |
| 8360 | return static_cast<Symbol*>(value); |
| 8361 | } |
| 8362 | |
| 8363 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8364 | Number* Number::Cast(v8::Value* value) { |
| 8365 | #ifdef V8_ENABLE_CHECKS |
| 8366 | CheckCast(value); |
| 8367 | #endif |
| 8368 | return static_cast<Number*>(value); |
| 8369 | } |
| 8370 | |
| 8371 | |
| 8372 | Integer* Integer::Cast(v8::Value* value) { |
| 8373 | #ifdef V8_ENABLE_CHECKS |
| 8374 | CheckCast(value); |
| 8375 | #endif |
| 8376 | return static_cast<Integer*>(value); |
| 8377 | } |
| 8378 | |
| 8379 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8380 | Int32* Int32::Cast(v8::Value* value) { |
| 8381 | #ifdef V8_ENABLE_CHECKS |
| 8382 | CheckCast(value); |
| 8383 | #endif |
| 8384 | return static_cast<Int32*>(value); |
| 8385 | } |
| 8386 | |
| 8387 | |
| 8388 | Uint32* Uint32::Cast(v8::Value* value) { |
| 8389 | #ifdef V8_ENABLE_CHECKS |
| 8390 | CheckCast(value); |
| 8391 | #endif |
| 8392 | return static_cast<Uint32*>(value); |
| 8393 | } |
| 8394 | |
| 8395 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8396 | Date* Date::Cast(v8::Value* value) { |
| 8397 | #ifdef V8_ENABLE_CHECKS |
| 8398 | CheckCast(value); |
| 8399 | #endif |
| 8400 | return static_cast<Date*>(value); |
| 8401 | } |
| 8402 | |
| 8403 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 8404 | StringObject* StringObject::Cast(v8::Value* value) { |
| 8405 | #ifdef V8_ENABLE_CHECKS |
| 8406 | CheckCast(value); |
| 8407 | #endif |
| 8408 | return static_cast<StringObject*>(value); |
| 8409 | } |
| 8410 | |
| 8411 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8412 | SymbolObject* SymbolObject::Cast(v8::Value* value) { |
| 8413 | #ifdef V8_ENABLE_CHECKS |
| 8414 | CheckCast(value); |
| 8415 | #endif |
| 8416 | return static_cast<SymbolObject*>(value); |
| 8417 | } |
| 8418 | |
| 8419 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 8420 | NumberObject* NumberObject::Cast(v8::Value* value) { |
| 8421 | #ifdef V8_ENABLE_CHECKS |
| 8422 | CheckCast(value); |
| 8423 | #endif |
| 8424 | return static_cast<NumberObject*>(value); |
| 8425 | } |
| 8426 | |
| 8427 | |
| 8428 | BooleanObject* BooleanObject::Cast(v8::Value* value) { |
| 8429 | #ifdef V8_ENABLE_CHECKS |
| 8430 | CheckCast(value); |
| 8431 | #endif |
| 8432 | return static_cast<BooleanObject*>(value); |
| 8433 | } |
| 8434 | |
| 8435 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 8436 | RegExp* RegExp::Cast(v8::Value* value) { |
| 8437 | #ifdef V8_ENABLE_CHECKS |
| 8438 | CheckCast(value); |
| 8439 | #endif |
| 8440 | return static_cast<RegExp*>(value); |
| 8441 | } |
| 8442 | |
| 8443 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8444 | Object* Object::Cast(v8::Value* value) { |
| 8445 | #ifdef V8_ENABLE_CHECKS |
| 8446 | CheckCast(value); |
| 8447 | #endif |
| 8448 | return static_cast<Object*>(value); |
| 8449 | } |
| 8450 | |
| 8451 | |
| 8452 | Array* Array::Cast(v8::Value* value) { |
| 8453 | #ifdef V8_ENABLE_CHECKS |
| 8454 | CheckCast(value); |
| 8455 | #endif |
| 8456 | return static_cast<Array*>(value); |
| 8457 | } |
| 8458 | |
| 8459 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8460 | Map* Map::Cast(v8::Value* value) { |
| 8461 | #ifdef V8_ENABLE_CHECKS |
| 8462 | CheckCast(value); |
| 8463 | #endif |
| 8464 | return static_cast<Map*>(value); |
| 8465 | } |
| 8466 | |
| 8467 | |
| 8468 | Set* Set::Cast(v8::Value* value) { |
| 8469 | #ifdef V8_ENABLE_CHECKS |
| 8470 | CheckCast(value); |
| 8471 | #endif |
| 8472 | return static_cast<Set*>(value); |
| 8473 | } |
| 8474 | |
| 8475 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8476 | Promise* Promise::Cast(v8::Value* value) { |
| 8477 | #ifdef V8_ENABLE_CHECKS |
| 8478 | CheckCast(value); |
| 8479 | #endif |
| 8480 | return static_cast<Promise*>(value); |
| 8481 | } |
| 8482 | |
| 8483 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8484 | Proxy* Proxy::Cast(v8::Value* value) { |
| 8485 | #ifdef V8_ENABLE_CHECKS |
| 8486 | CheckCast(value); |
| 8487 | #endif |
| 8488 | return static_cast<Proxy*>(value); |
| 8489 | } |
| 8490 | |
| 8491 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8492 | Promise::Resolver* Promise::Resolver::Cast(v8::Value* value) { |
| 8493 | #ifdef V8_ENABLE_CHECKS |
| 8494 | CheckCast(value); |
| 8495 | #endif |
| 8496 | return static_cast<Promise::Resolver*>(value); |
| 8497 | } |
| 8498 | |
| 8499 | |
| 8500 | ArrayBuffer* ArrayBuffer::Cast(v8::Value* value) { |
| 8501 | #ifdef V8_ENABLE_CHECKS |
| 8502 | CheckCast(value); |
| 8503 | #endif |
| 8504 | return static_cast<ArrayBuffer*>(value); |
| 8505 | } |
| 8506 | |
| 8507 | |
| 8508 | ArrayBufferView* ArrayBufferView::Cast(v8::Value* value) { |
| 8509 | #ifdef V8_ENABLE_CHECKS |
| 8510 | CheckCast(value); |
| 8511 | #endif |
| 8512 | return static_cast<ArrayBufferView*>(value); |
| 8513 | } |
| 8514 | |
| 8515 | |
| 8516 | TypedArray* TypedArray::Cast(v8::Value* value) { |
| 8517 | #ifdef V8_ENABLE_CHECKS |
| 8518 | CheckCast(value); |
| 8519 | #endif |
| 8520 | return static_cast<TypedArray*>(value); |
| 8521 | } |
| 8522 | |
| 8523 | |
| 8524 | Uint8Array* Uint8Array::Cast(v8::Value* value) { |
| 8525 | #ifdef V8_ENABLE_CHECKS |
| 8526 | CheckCast(value); |
| 8527 | #endif |
| 8528 | return static_cast<Uint8Array*>(value); |
| 8529 | } |
| 8530 | |
| 8531 | |
| 8532 | Int8Array* Int8Array::Cast(v8::Value* value) { |
| 8533 | #ifdef V8_ENABLE_CHECKS |
| 8534 | CheckCast(value); |
| 8535 | #endif |
| 8536 | return static_cast<Int8Array*>(value); |
| 8537 | } |
| 8538 | |
| 8539 | |
| 8540 | Uint16Array* Uint16Array::Cast(v8::Value* value) { |
| 8541 | #ifdef V8_ENABLE_CHECKS |
| 8542 | CheckCast(value); |
| 8543 | #endif |
| 8544 | return static_cast<Uint16Array*>(value); |
| 8545 | } |
| 8546 | |
| 8547 | |
| 8548 | Int16Array* Int16Array::Cast(v8::Value* value) { |
| 8549 | #ifdef V8_ENABLE_CHECKS |
| 8550 | CheckCast(value); |
| 8551 | #endif |
| 8552 | return static_cast<Int16Array*>(value); |
| 8553 | } |
| 8554 | |
| 8555 | |
| 8556 | Uint32Array* Uint32Array::Cast(v8::Value* value) { |
| 8557 | #ifdef V8_ENABLE_CHECKS |
| 8558 | CheckCast(value); |
| 8559 | #endif |
| 8560 | return static_cast<Uint32Array*>(value); |
| 8561 | } |
| 8562 | |
| 8563 | |
| 8564 | Int32Array* Int32Array::Cast(v8::Value* value) { |
| 8565 | #ifdef V8_ENABLE_CHECKS |
| 8566 | CheckCast(value); |
| 8567 | #endif |
| 8568 | return static_cast<Int32Array*>(value); |
| 8569 | } |
| 8570 | |
| 8571 | |
| 8572 | Float32Array* Float32Array::Cast(v8::Value* value) { |
| 8573 | #ifdef V8_ENABLE_CHECKS |
| 8574 | CheckCast(value); |
| 8575 | #endif |
| 8576 | return static_cast<Float32Array*>(value); |
| 8577 | } |
| 8578 | |
| 8579 | |
| 8580 | Float64Array* Float64Array::Cast(v8::Value* value) { |
| 8581 | #ifdef V8_ENABLE_CHECKS |
| 8582 | CheckCast(value); |
| 8583 | #endif |
| 8584 | return static_cast<Float64Array*>(value); |
| 8585 | } |
| 8586 | |
| 8587 | |
| 8588 | Uint8ClampedArray* Uint8ClampedArray::Cast(v8::Value* value) { |
| 8589 | #ifdef V8_ENABLE_CHECKS |
| 8590 | CheckCast(value); |
| 8591 | #endif |
| 8592 | return static_cast<Uint8ClampedArray*>(value); |
| 8593 | } |
| 8594 | |
| 8595 | |
| 8596 | DataView* DataView::Cast(v8::Value* value) { |
| 8597 | #ifdef V8_ENABLE_CHECKS |
| 8598 | CheckCast(value); |
| 8599 | #endif |
| 8600 | return static_cast<DataView*>(value); |
| 8601 | } |
| 8602 | |
| 8603 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8604 | SharedArrayBuffer* SharedArrayBuffer::Cast(v8::Value* value) { |
| 8605 | #ifdef V8_ENABLE_CHECKS |
| 8606 | CheckCast(value); |
| 8607 | #endif |
| 8608 | return static_cast<SharedArrayBuffer*>(value); |
| 8609 | } |
| 8610 | |
| 8611 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8612 | Function* Function::Cast(v8::Value* value) { |
| 8613 | #ifdef V8_ENABLE_CHECKS |
| 8614 | CheckCast(value); |
| 8615 | #endif |
| 8616 | return static_cast<Function*>(value); |
| 8617 | } |
| 8618 | |
| 8619 | |
| 8620 | External* External::Cast(v8::Value* value) { |
| 8621 | #ifdef V8_ENABLE_CHECKS |
| 8622 | CheckCast(value); |
| 8623 | #endif |
| 8624 | return static_cast<External*>(value); |
| 8625 | } |
| 8626 | |
| 8627 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8628 | template<typename T> |
| 8629 | Isolate* PropertyCallbackInfo<T>::GetIsolate() const { |
| 8630 | return *reinterpret_cast<Isolate**>(&args_[kIsolateIndex]); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8631 | } |
| 8632 | |
| 8633 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8634 | template<typename T> |
| 8635 | Local<Value> PropertyCallbackInfo<T>::Data() const { |
| 8636 | return Local<Value>(reinterpret_cast<Value*>(&args_[kDataIndex])); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8637 | } |
| 8638 | |
| 8639 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8640 | template<typename T> |
| 8641 | Local<Object> PropertyCallbackInfo<T>::This() const { |
| 8642 | return Local<Object>(reinterpret_cast<Object*>(&args_[kThisIndex])); |
| 8643 | } |
| 8644 | |
| 8645 | |
| 8646 | template<typename T> |
| 8647 | Local<Object> PropertyCallbackInfo<T>::Holder() const { |
| 8648 | return Local<Object>(reinterpret_cast<Object*>(&args_[kHolderIndex])); |
| 8649 | } |
| 8650 | |
| 8651 | |
| 8652 | template<typename T> |
| 8653 | ReturnValue<T> PropertyCallbackInfo<T>::GetReturnValue() const { |
| 8654 | return ReturnValue<T>(&args_[kReturnValueIndex]); |
| 8655 | } |
| 8656 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 8657 | template <typename T> |
| 8658 | bool PropertyCallbackInfo<T>::ShouldThrowOnError() const { |
| 8659 | typedef internal::Internals I; |
| 8660 | return args_[kShouldThrowOnErrorIndex] != I::IntToSmi(0); |
| 8661 | } |
| 8662 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8663 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8664 | Local<Primitive> Undefined(Isolate* isolate) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8665 | typedef internal::Object* S; |
| 8666 | typedef internal::Internals I; |
| 8667 | I::CheckInitialized(isolate); |
| 8668 | S* slot = I::GetRoot(isolate, I::kUndefinedValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8669 | return Local<Primitive>(reinterpret_cast<Primitive*>(slot)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8670 | } |
| 8671 | |
| 8672 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8673 | Local<Primitive> Null(Isolate* isolate) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8674 | typedef internal::Object* S; |
| 8675 | typedef internal::Internals I; |
| 8676 | I::CheckInitialized(isolate); |
| 8677 | S* slot = I::GetRoot(isolate, I::kNullValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8678 | return Local<Primitive>(reinterpret_cast<Primitive*>(slot)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8679 | } |
| 8680 | |
| 8681 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8682 | Local<Boolean> True(Isolate* isolate) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8683 | typedef internal::Object* S; |
| 8684 | typedef internal::Internals I; |
| 8685 | I::CheckInitialized(isolate); |
| 8686 | S* slot = I::GetRoot(isolate, I::kTrueValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8687 | return Local<Boolean>(reinterpret_cast<Boolean*>(slot)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8688 | } |
| 8689 | |
| 8690 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8691 | Local<Boolean> False(Isolate* isolate) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8692 | typedef internal::Object* S; |
| 8693 | typedef internal::Internals I; |
| 8694 | I::CheckInitialized(isolate); |
| 8695 | S* slot = I::GetRoot(isolate, I::kFalseValueRootIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8696 | return Local<Boolean>(reinterpret_cast<Boolean*>(slot)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8697 | } |
| 8698 | |
| 8699 | |
| 8700 | void Isolate::SetData(uint32_t slot, void* data) { |
| 8701 | typedef internal::Internals I; |
| 8702 | I::SetEmbedderData(this, slot, data); |
| 8703 | } |
| 8704 | |
| 8705 | |
| 8706 | void* Isolate::GetData(uint32_t slot) { |
| 8707 | typedef internal::Internals I; |
| 8708 | return I::GetEmbedderData(this, slot); |
| 8709 | } |
| 8710 | |
| 8711 | |
| 8712 | uint32_t Isolate::GetNumberOfDataSlots() { |
| 8713 | typedef internal::Internals I; |
| 8714 | return I::kNumIsolateDataSlots; |
| 8715 | } |
| 8716 | |
| 8717 | |
| 8718 | int64_t Isolate::AdjustAmountOfExternalAllocatedMemory( |
| 8719 | int64_t change_in_bytes) { |
| 8720 | typedef internal::Internals I; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 8721 | int64_t* external_memory = reinterpret_cast<int64_t*>( |
| 8722 | reinterpret_cast<uint8_t*>(this) + I::kExternalMemoryOffset); |
| 8723 | const int64_t external_memory_limit = *reinterpret_cast<int64_t*>( |
| 8724 | reinterpret_cast<uint8_t*>(this) + I::kExternalMemoryLimitOffset); |
| 8725 | const int64_t amount = *external_memory + change_in_bytes; |
| 8726 | *external_memory = amount; |
| 8727 | if (change_in_bytes > 0 && amount > external_memory_limit) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8728 | ReportExternalAllocationLimitReached(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8729 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 8730 | return *external_memory; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8731 | } |
| 8732 | |
| 8733 | |
| 8734 | template<typename T> |
| 8735 | void Isolate::SetObjectGroupId(const Persistent<T>& object, |
| 8736 | UniqueId id) { |
| 8737 | TYPE_CHECK(Value, T); |
| 8738 | SetObjectGroupId(reinterpret_cast<v8::internal::Object**>(object.val_), id); |
| 8739 | } |
| 8740 | |
| 8741 | |
| 8742 | template<typename T> |
| 8743 | void Isolate::SetReferenceFromGroup(UniqueId id, |
| 8744 | const Persistent<T>& object) { |
| 8745 | TYPE_CHECK(Value, T); |
| 8746 | SetReferenceFromGroup(id, |
| 8747 | reinterpret_cast<v8::internal::Object**>(object.val_)); |
| 8748 | } |
| 8749 | |
| 8750 | |
| 8751 | template<typename T, typename S> |
| 8752 | void Isolate::SetReference(const Persistent<T>& parent, |
| 8753 | const Persistent<S>& child) { |
| 8754 | TYPE_CHECK(Object, T); |
| 8755 | TYPE_CHECK(Value, S); |
| 8756 | SetReference(reinterpret_cast<v8::internal::Object**>(parent.val_), |
| 8757 | reinterpret_cast<v8::internal::Object**>(child.val_)); |
| 8758 | } |
| 8759 | |
| 8760 | |
| 8761 | Local<Value> Context::GetEmbedderData(int index) { |
| 8762 | #ifndef V8_ENABLE_CHECKS |
| 8763 | typedef internal::Object O; |
| 8764 | typedef internal::HeapObject HO; |
| 8765 | typedef internal::Internals I; |
| 8766 | HO* context = *reinterpret_cast<HO**>(this); |
| 8767 | O** result = |
| 8768 | HandleScope::CreateHandle(context, I::ReadEmbedderData<O*>(this, index)); |
| 8769 | return Local<Value>(reinterpret_cast<Value*>(result)); |
| 8770 | #else |
| 8771 | return SlowGetEmbedderData(index); |
| 8772 | #endif |
| 8773 | } |
| 8774 | |
| 8775 | |
| 8776 | void* Context::GetAlignedPointerFromEmbedderData(int index) { |
| 8777 | #ifndef V8_ENABLE_CHECKS |
| 8778 | typedef internal::Internals I; |
| 8779 | return I::ReadEmbedderData<void*>(this, index); |
| 8780 | #else |
| 8781 | return SlowGetAlignedPointerFromEmbedderData(index); |
| 8782 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8783 | } |
| 8784 | |
| 8785 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8786 | void V8::SetAllowCodeGenerationFromStringsCallback( |
| 8787 | AllowCodeGenerationFromStringsCallback callback) { |
| 8788 | Isolate* isolate = Isolate::GetCurrent(); |
| 8789 | isolate->SetAllowCodeGenerationFromStringsCallback(callback); |
| 8790 | } |
| 8791 | |
| 8792 | |
| 8793 | bool V8::IsDead() { |
| 8794 | Isolate* isolate = Isolate::GetCurrent(); |
| 8795 | return isolate->IsDead(); |
| 8796 | } |
| 8797 | |
| 8798 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8799 | bool V8::AddMessageListener(MessageCallback that, Local<Value> data) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8800 | Isolate* isolate = Isolate::GetCurrent(); |
| 8801 | return isolate->AddMessageListener(that, data); |
| 8802 | } |
| 8803 | |
| 8804 | |
| 8805 | void V8::RemoveMessageListeners(MessageCallback that) { |
| 8806 | Isolate* isolate = Isolate::GetCurrent(); |
| 8807 | isolate->RemoveMessageListeners(that); |
| 8808 | } |
| 8809 | |
| 8810 | |
| 8811 | void V8::SetFailedAccessCheckCallbackFunction( |
| 8812 | FailedAccessCheckCallback callback) { |
| 8813 | Isolate* isolate = Isolate::GetCurrent(); |
| 8814 | isolate->SetFailedAccessCheckCallbackFunction(callback); |
| 8815 | } |
| 8816 | |
| 8817 | |
| 8818 | void V8::SetCaptureStackTraceForUncaughtExceptions( |
| 8819 | bool capture, int frame_limit, StackTrace::StackTraceOptions options) { |
| 8820 | Isolate* isolate = Isolate::GetCurrent(); |
| 8821 | isolate->SetCaptureStackTraceForUncaughtExceptions(capture, frame_limit, |
| 8822 | options); |
| 8823 | } |
| 8824 | |
| 8825 | |
| 8826 | void V8::SetFatalErrorHandler(FatalErrorCallback callback) { |
| 8827 | Isolate* isolate = Isolate::GetCurrent(); |
| 8828 | isolate->SetFatalErrorHandler(callback); |
| 8829 | } |
| 8830 | |
| 8831 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8832 | void V8::RemoveGCPrologueCallback(GCCallback callback) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8833 | Isolate* isolate = Isolate::GetCurrent(); |
| 8834 | isolate->RemoveGCPrologueCallback( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8835 | reinterpret_cast<v8::Isolate::GCCallback>(callback)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8836 | } |
| 8837 | |
| 8838 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8839 | void V8::RemoveGCEpilogueCallback(GCCallback callback) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8840 | Isolate* isolate = Isolate::GetCurrent(); |
| 8841 | isolate->RemoveGCEpilogueCallback( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8842 | reinterpret_cast<v8::Isolate::GCCallback>(callback)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8843 | } |
| 8844 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8845 | void V8::TerminateExecution(Isolate* isolate) { isolate->TerminateExecution(); } |
| 8846 | |
| 8847 | |
| 8848 | bool V8::IsExecutionTerminating(Isolate* isolate) { |
| 8849 | if (isolate == NULL) { |
| 8850 | isolate = Isolate::GetCurrent(); |
| 8851 | } |
| 8852 | return isolate->IsExecutionTerminating(); |
| 8853 | } |
| 8854 | |
| 8855 | |
| 8856 | void V8::CancelTerminateExecution(Isolate* isolate) { |
| 8857 | isolate->CancelTerminateExecution(); |
| 8858 | } |
| 8859 | |
| 8860 | |
| 8861 | void V8::VisitExternalResources(ExternalResourceVisitor* visitor) { |
| 8862 | Isolate* isolate = Isolate::GetCurrent(); |
| 8863 | isolate->VisitExternalResources(visitor); |
| 8864 | } |
| 8865 | |
| 8866 | |
| 8867 | void V8::VisitHandlesWithClassIds(PersistentHandleVisitor* visitor) { |
| 8868 | Isolate* isolate = Isolate::GetCurrent(); |
| 8869 | isolate->VisitHandlesWithClassIds(visitor); |
| 8870 | } |
| 8871 | |
| 8872 | |
| 8873 | void V8::VisitHandlesWithClassIds(Isolate* isolate, |
| 8874 | PersistentHandleVisitor* visitor) { |
| 8875 | isolate->VisitHandlesWithClassIds(visitor); |
| 8876 | } |
| 8877 | |
| 8878 | |
| 8879 | void V8::VisitHandlesForPartialDependence(Isolate* isolate, |
| 8880 | PersistentHandleVisitor* visitor) { |
| 8881 | isolate->VisitHandlesForPartialDependence(visitor); |
| 8882 | } |
| 8883 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8884 | /** |
| 8885 | * \example shell.cc |
| 8886 | * A simple shell that takes a list of expressions on the |
| 8887 | * command-line and executes them. |
| 8888 | */ |
| 8889 | |
| 8890 | |
| 8891 | /** |
| 8892 | * \example process.cc |
| 8893 | */ |
| 8894 | |
| 8895 | |
| 8896 | } // namespace v8 |
| 8897 | |
| 8898 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8899 | #undef TYPE_CHECK |
| 8900 | |
| 8901 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8902 | #endif // INCLUDE_V8_H_ |