Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/include/v8.h b/include/v8.h
index 33179f5..ec1941e 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1,29 +1,6 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
/** \mainpage V8 API Reference Guide
*
@@ -40,7 +17,10 @@
#include "v8stdint.h"
-#ifdef _WIN32
+// We reserve the V8_* prefix for macros defined in V8 public API and
+// assume there are no name conflicts with the embedder's code.
+
+#ifdef V8_OS_WIN
// Setup for Windows DLL export/import. When building the V8 DLL the
// BUILDING_V8_SHARED needs to be defined. When building a program which uses
@@ -53,86 +33,134 @@
#endif
#ifdef BUILDING_V8_SHARED
-#define V8EXPORT __declspec(dllexport)
+# define V8_EXPORT __declspec(dllexport)
#elif USING_V8_SHARED
-#define V8EXPORT __declspec(dllimport)
+# define V8_EXPORT __declspec(dllimport)
#else
-#define V8EXPORT
+# define V8_EXPORT
#endif // BUILDING_V8_SHARED
-#else // _WIN32
+#else // V8_OS_WIN
-// Setup for Linux shared library export. There is no need to distinguish
-// between building or using the V8 shared library, but we should not
-// export symbols when we are building a static library.
-#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(V8_SHARED)
-#define V8EXPORT __attribute__ ((visibility("default")))
-#else // defined(__GNUC__) && (__GNUC__ >= 4)
-#define V8EXPORT
-#endif // defined(__GNUC__) && (__GNUC__ >= 4)
+// Setup for Linux shared library export.
+#if V8_HAS_ATTRIBUTE_VISIBILITY && defined(V8_SHARED)
+# ifdef BUILDING_V8_SHARED
+# define V8_EXPORT __attribute__ ((visibility("default")))
+# else
+# define V8_EXPORT
+# endif
+#else
+# define V8_EXPORT
+#endif
-#endif // _WIN32
+#endif // V8_OS_WIN
/**
* The v8 JavaScript engine.
*/
namespace v8 {
+class AccessorSignature;
+class Array;
+class Boolean;
+class BooleanObject;
class Context;
-class String;
-class StringObject;
-class Value;
-class Utils;
+class CpuProfiler;
+class Data;
+class Date;
+class DeclaredAccessorDescriptor;
+class External;
+class Function;
+class FunctionTemplate;
+class HeapProfiler;
+class ImplementationUtilities;
+class Int32;
+class Integer;
+class Isolate;
+class Name;
class Number;
class NumberObject;
class Object;
-class Array;
-class Int32;
-class Uint32;
-class External;
+class ObjectOperationDescriptor;
+class ObjectTemplate;
+class Platform;
class Primitive;
-class Boolean;
-class BooleanObject;
-class Integer;
-class Function;
-class Date;
-class ImplementationUtilities;
+class RawOperationDescriptor;
+class Script;
class Signature;
+class StackFrame;
+class StackTrace;
+class String;
+class StringObject;
+class Symbol;
+class SymbolObject;
+class Private;
+class Uint32;
+class Utils;
+class Value;
template <class T> class Handle;
template <class T> class Local;
-template <class T> class Persistent;
+template <class T> class Eternal;
+template<class T> class NonCopyablePersistentTraits;
+template<class T> class PersistentBase;
+template<class T,
+ class M = NonCopyablePersistentTraits<T> > class Persistent;
+template<class T> class UniquePersistent;
+template<class K, class V, class T> class PersistentValueMap;
+template<class V, class T> class PersistentValueVector;
+template<class T, class P> class WeakCallbackObject;
class FunctionTemplate;
class ObjectTemplate;
class Data;
-class AccessorInfo;
+template<typename T> class FunctionCallbackInfo;
+template<typename T> class PropertyCallbackInfo;
class StackTrace;
class StackFrame;
+class Isolate;
+class DeclaredAccessorDescriptor;
+class ObjectOperationDescriptor;
+class RawOperationDescriptor;
+class CallHandlerHelper;
+class EscapableHandleScope;
+template<typename T> class ReturnValue;
namespace internal {
-
class Arguments;
-class Object;
class Heap;
class HeapObject;
class Isolate;
+class Object;
+struct StreamedSource;
+template<typename T> class CustomArguments;
+class PropertyCallbackArguments;
+class FunctionCallbackArguments;
+class GlobalHandles;
}
-// --- Weak Handles ---
-
-
/**
- * A weak reference callback function.
- *
- * This callback should either explicitly invoke Dispose on |object| if
- * V8 wrapper is not needed anymore, or 'revive' it by invocation of MakeWeak.
- *
- * \param object the weak global object to be reclaimed by the garbage collector
- * \param parameter the value passed in when making the weak global object
+ * General purpose unique identifier.
*/
-typedef void (*WeakReferenceCallback)(Persistent<Value> object,
- void* parameter);
+class UniqueId {
+ public:
+ explicit UniqueId(intptr_t data)
+ : data_(data) {}
+ bool operator==(const UniqueId& other) const {
+ return data_ == other.data_;
+ }
+
+ bool operator!=(const UniqueId& other) const {
+ return data_ != other.data_;
+ }
+
+ bool operator<(const UniqueId& other) const {
+ return data_ < other.data_;
+ }
+
+ private:
+ intptr_t data_;
+};
// --- Handles ---
@@ -141,6 +169,7 @@
*(static_cast<T* volatile*>(0)) = static_cast<S*>(0); \
}
+
/**
* An object reference managed by the v8 garbage collector.
*
@@ -171,12 +200,7 @@
/**
* Creates an empty handle.
*/
- inline Handle() : val_(0) {}
-
- /**
- * Creates a new handle for the specified value.
- */
- inline explicit Handle(T* val) : val_(val) {}
+ V8_INLINE Handle() : val_(0) {}
/**
* Creates a handle for the contents of the specified handle. This
@@ -188,7 +212,7 @@
* Handle<String> to a variable declared as Handle<Value>, is legal
* because String is a subclass of Value.
*/
- template <class S> inline Handle(Handle<S> that)
+ template <class S> V8_INLINE Handle(Handle<S> that)
: val_(reinterpret_cast<T*>(*that)) {
/**
* This check fails when trying to convert between incompatible
@@ -201,16 +225,16 @@
/**
* Returns true if the handle is empty.
*/
- inline bool IsEmpty() const { return val_ == 0; }
+ V8_INLINE bool IsEmpty() const { return val_ == 0; }
/**
* Sets the handle to be empty. IsEmpty() will then return true.
*/
- inline void Clear() { val_ = 0; }
+ V8_INLINE void Clear() { val_ = 0; }
- inline T* operator->() const { return val_; }
+ V8_INLINE T* operator->() const { return val_; }
- inline T* operator*() const { return val_; }
+ V8_INLINE T* operator*() const { return val_; }
/**
* Checks whether two handles are the same.
@@ -218,9 +242,18 @@
* to which they refer are identical.
* The handles' references are not checked.
*/
- template <class S> inline bool operator==(Handle<S> that) const {
- internal::Object** a = reinterpret_cast<internal::Object**>(**this);
- internal::Object** b = reinterpret_cast<internal::Object**>(*that);
+ template <class S> V8_INLINE bool operator==(const Handle<S>& that) const {
+ internal::Object** a = reinterpret_cast<internal::Object**>(this->val_);
+ internal::Object** b = reinterpret_cast<internal::Object**>(that.val_);
+ if (a == 0) return b == 0;
+ if (b == 0) return false;
+ return *a == *b;
+ }
+
+ template <class S> V8_INLINE bool operator==(
+ const PersistentBase<S>& that) const {
+ internal::Object** a = reinterpret_cast<internal::Object**>(this->val_);
+ internal::Object** b = reinterpret_cast<internal::Object**>(that.val_);
if (a == 0) return b == 0;
if (b == 0) return false;
return *a == *b;
@@ -232,11 +265,16 @@
* the objects to which they refer are different.
* The handles' references are not checked.
*/
- template <class S> inline bool operator!=(Handle<S> that) const {
+ template <class S> V8_INLINE bool operator!=(const Handle<S>& that) const {
return !operator==(that);
}
- template <class S> static inline Handle<T> Cast(Handle<S> that) {
+ template <class S> V8_INLINE bool operator!=(
+ const Persistent<S>& that) const {
+ return !operator==(that);
+ }
+
+ template <class S> V8_INLINE static Handle<T> Cast(Handle<S> that) {
#ifdef V8_ENABLE_CHECKS
// If we're going to perform the type check then we have to check
// that the handle isn't empty before doing the checked cast.
@@ -245,11 +283,43 @@
return Handle<T>(T::Cast(*that));
}
- template <class S> inline Handle<S> As() {
+ template <class S> V8_INLINE Handle<S> As() {
return Handle<S>::Cast(*this);
}
+ V8_INLINE static Handle<T> New(Isolate* isolate, Handle<T> that) {
+ return New(isolate, that.val_);
+ }
+ V8_INLINE static Handle<T> New(Isolate* isolate,
+ const PersistentBase<T>& that) {
+ return New(isolate, that.val_);
+ }
+
private:
+ friend class Utils;
+ template<class F, class M> friend class Persistent;
+ template<class F> friend class PersistentBase;
+ template<class F> friend class Handle;
+ template<class F> friend class Local;
+ template<class F> friend class FunctionCallbackInfo;
+ template<class F> friend class PropertyCallbackInfo;
+ template<class F> friend class internal::CustomArguments;
+ friend Handle<Primitive> Undefined(Isolate* isolate);
+ friend Handle<Primitive> Null(Isolate* isolate);
+ friend Handle<Boolean> True(Isolate* isolate);
+ friend Handle<Boolean> False(Isolate* isolate);
+ friend class Context;
+ friend class HandleScope;
+ friend class Object;
+ friend class Private;
+
+ /**
+ * Creates a new handle for the specified value.
+ */
+ V8_INLINE explicit Handle(T* val) : val_(val) {}
+
+ V8_INLINE static Handle<T> New(Isolate* isolate, T* that);
+
T* val_;
};
@@ -263,8 +333,8 @@
*/
template <class T> class Local : public Handle<T> {
public:
- inline Local();
- template <class S> inline Local(Local<S> that)
+ V8_INLINE Local();
+ template <class S> V8_INLINE Local(Local<S> that)
: Handle<T>(reinterpret_cast<T*>(*that)) {
/**
* This check fails when trying to convert between incompatible
@@ -273,8 +343,9 @@
*/
TYPE_CHECK(T, S);
}
- template <class S> inline Local(S* that) : Handle<T>(that) { }
- template <class S> static inline Local<T> Cast(Local<S> that) {
+
+
+ template <class S> V8_INLINE static Local<T> Cast(Local<S> that) {
#ifdef V8_ENABLE_CHECKS
// If we're going to perform the type check then we have to check
// that the handle isn't empty before doing the checked cast.
@@ -282,140 +353,435 @@
#endif
return Local<T>(T::Cast(*that));
}
+ template <class S> V8_INLINE Local(Handle<S> that)
+ : Handle<T>(reinterpret_cast<T*>(*that)) {
+ TYPE_CHECK(T, S);
+ }
- template <class S> inline Local<S> As() {
+ template <class S> V8_INLINE Local<S> As() {
return Local<S>::Cast(*this);
}
- /** Create a local handle for the content of another handle.
- * The referee is kept alive by the local handle even when
- * the original handle is destroyed/disposed.
+ /**
+ * Create a local handle for the content of another handle.
+ * The referee is kept alive by the local handle even when
+ * the original handle is destroyed/disposed.
*/
- inline static Local<T> New(Handle<T> that);
+ V8_INLINE static Local<T> New(Isolate* isolate, Handle<T> that);
+ V8_INLINE static Local<T> New(Isolate* isolate,
+ const PersistentBase<T>& that);
+
+ private:
+ friend class Utils;
+ template<class F> friend class Eternal;
+ template<class F> friend class PersistentBase;
+ template<class F, class M> friend class Persistent;
+ template<class F> friend class Handle;
+ template<class F> friend class Local;
+ template<class F> friend class FunctionCallbackInfo;
+ template<class F> friend class PropertyCallbackInfo;
+ friend class String;
+ friend class Object;
+ friend class Context;
+ template<class F> friend class internal::CustomArguments;
+ friend class HandleScope;
+ friend class EscapableHandleScope;
+ template<class F1, class F2, class F3> friend class PersistentValueMap;
+ template<class F1, class F2> friend class PersistentValueVector;
+
+ template <class S> V8_INLINE Local(S* that) : Handle<T>(that) { }
+ V8_INLINE static Local<T> New(Isolate* isolate, T* that);
+};
+
+
+// Eternal handles are set-once handles that live for the life of the isolate.
+template <class T> class Eternal {
+ public:
+ V8_INLINE Eternal() : index_(kInitialValue) { }
+ template<class S>
+ V8_INLINE Eternal(Isolate* isolate, Local<S> handle) : index_(kInitialValue) {
+ Set(isolate, handle);
+ }
+ // Can only be safely called if already set.
+ V8_INLINE Local<T> Get(Isolate* isolate);
+ V8_INLINE bool IsEmpty() { return index_ == kInitialValue; }
+ template<class S> V8_INLINE void Set(Isolate* isolate, Local<S> handle);
+
+ private:
+ static const int kInitialValue = -1;
+ int index_;
+};
+
+
+template<class T, class P>
+class WeakCallbackData {
+ public:
+ typedef void (*Callback)(const WeakCallbackData<T, P>& data);
+
+ V8_INLINE Isolate* GetIsolate() const { return isolate_; }
+ V8_INLINE Local<T> GetValue() const { return handle_; }
+ V8_INLINE P* GetParameter() const { return parameter_; }
+
+ private:
+ friend class internal::GlobalHandles;
+ WeakCallbackData(Isolate* isolate, Local<T> handle, P* parameter)
+ : isolate_(isolate), handle_(handle), parameter_(parameter) { }
+ Isolate* isolate_;
+ Local<T> handle_;
+ P* parameter_;
};
/**
* An object reference that is independent of any handle scope. Where
* a Local handle only lives as long as the HandleScope in which it was
- * allocated, a Persistent handle remains valid until it is explicitly
+ * allocated, a PersistentBase handle remains valid until it is explicitly
* disposed.
*
* A persistent handle contains a reference to a storage cell within
* the v8 engine which holds an object value and which is updated by
* the garbage collector whenever the object is moved. A new storage
- * cell can be created using Persistent::New and existing handles can
- * be disposed using Persistent::Dispose. Since persistent handles
- * are passed by value you may have many persistent handle objects
- * that point to the same storage cell. For instance, if you pass a
- * persistent handle as an argument to a function you will not get two
- * different storage cells but rather two references to the same
- * storage cell.
+ * cell can be created using the constructor or PersistentBase::Reset and
+ * existing handles can be disposed using PersistentBase::Reset.
+ *
*/
-template <class T> class Persistent : public Handle<T> {
+template <class T> class PersistentBase {
public:
/**
- * Creates an empty persistent handle that doesn't point to any
- * storage cell.
+ * If non-empty, destroy the underlying storage cell
+ * IsEmpty() will return true after this call.
*/
- inline Persistent();
+ V8_INLINE void Reset();
+ /**
+ * If non-empty, destroy the underlying storage cell
+ * and create a new one with the contents of other if other is non empty
+ */
+ template <class S>
+ V8_INLINE void Reset(Isolate* isolate, const Handle<S>& other);
/**
- * Creates a persistent handle for the same storage cell as the
- * specified handle. This constructor allows you to pass persistent
- * handles as arguments by value and to assign between persistent
- * handles. However, attempting to assign between incompatible
- * persistent handles, for instance from a Persistent<String> to a
- * Persistent<Number> will cause a compile-time error. Assigning
- * between compatible persistent handles, for instance assigning a
- * Persistent<String> to a variable declared as Persistent<Value>,
- * is allowed as String is a subclass of Value.
+ * If non-empty, destroy the underlying storage cell
+ * and create a new one with the contents of other if other is non empty
*/
- template <class S> inline Persistent(Persistent<S> that)
- : Handle<T>(reinterpret_cast<T*>(*that)) {
- /**
- * This check fails when trying to convert between incompatible
- * handles. For example, converting from a Handle<String> to a
- * Handle<Number>.
- */
- TYPE_CHECK(T, S);
+ template <class S>
+ V8_INLINE void Reset(Isolate* isolate, const PersistentBase<S>& other);
+
+ V8_INLINE bool IsEmpty() const { return val_ == 0; }
+
+ template <class S>
+ V8_INLINE bool operator==(const PersistentBase<S>& that) const {
+ internal::Object** a = reinterpret_cast<internal::Object**>(this->val_);
+ internal::Object** b = reinterpret_cast<internal::Object**>(that.val_);
+ if (a == 0) return b == 0;
+ if (b == 0) return false;
+ return *a == *b;
}
- template <class S> inline Persistent(S* that) : Handle<T>(that) { }
+ template <class S> V8_INLINE bool operator==(const Handle<S>& that) const {
+ internal::Object** a = reinterpret_cast<internal::Object**>(this->val_);
+ internal::Object** b = reinterpret_cast<internal::Object**>(that.val_);
+ if (a == 0) return b == 0;
+ if (b == 0) return false;
+ return *a == *b;
+ }
+
+ template <class S>
+ V8_INLINE bool operator!=(const PersistentBase<S>& that) const {
+ return !operator==(that);
+ }
+
+ template <class S> V8_INLINE bool operator!=(const Handle<S>& that) const {
+ return !operator==(that);
+ }
/**
- * "Casts" a plain handle which is known to be a persistent handle
- * to a persistent handle.
+ * Install a finalization callback on this object.
+ * NOTE: There is no guarantee as to *when* or even *if* the callback is
+ * invoked. The invocation is performed solely on a best effort basis.
+ * As always, GC-based finalization should *not* be relied upon for any
+ * critical form of resource management!
*/
- template <class S> explicit inline Persistent(Handle<S> that)
- : Handle<T>(*that) { }
+ template<typename P>
+ V8_INLINE void SetWeak(
+ P* parameter,
+ typename WeakCallbackData<T, P>::Callback callback);
- template <class S> static inline Persistent<T> Cast(Persistent<S> that) {
+ template<typename S, typename P>
+ V8_INLINE void SetWeak(
+ P* parameter,
+ typename WeakCallbackData<S, P>::Callback callback);
+
+ template<typename P>
+ V8_INLINE P* ClearWeak();
+
+ // TODO(dcarney): remove this.
+ V8_INLINE void ClearWeak() { ClearWeak<void>(); }
+
+ /**
+ * Marks the reference to this object independent. Garbage collector is free
+ * to ignore any object groups containing this object. Weak callback for an
+ * independent handle should not assume that it will be preceded by a global
+ * GC prologue callback or followed by a global GC epilogue callback.
+ */
+ V8_INLINE void MarkIndependent();
+
+ /**
+ * Marks the reference to this object partially dependent. Partially dependent
+ * handles only depend on other partially dependent handles and these
+ * dependencies are provided through object groups. It provides a way to build
+ * smaller object groups for young objects that represent only a subset of all
+ * external dependencies. This mark is automatically cleared after each
+ * garbage collection.
+ */
+ V8_INLINE void MarkPartiallyDependent();
+
+ V8_INLINE bool IsIndependent() const;
+
+ /** Checks if the handle holds the only reference to an object. */
+ V8_INLINE bool IsNearDeath() const;
+
+ /** Returns true if the handle's reference is weak. */
+ V8_INLINE bool IsWeak() const;
+
+ /**
+ * Assigns a wrapper class ID to the handle. See RetainedObjectInfo interface
+ * description in v8-profiler.h for details.
+ */
+ V8_INLINE void SetWrapperClassId(uint16_t class_id);
+
+ /**
+ * Returns the class ID previously assigned to this handle or 0 if no class ID
+ * was previously assigned.
+ */
+ V8_INLINE uint16_t WrapperClassId() const;
+
+ private:
+ friend class Isolate;
+ friend class Utils;
+ template<class F> friend class Handle;
+ template<class F> friend class Local;
+ template<class F1, class F2> friend class Persistent;
+ template<class F> friend class UniquePersistent;
+ template<class F> friend class PersistentBase;
+ template<class F> friend class ReturnValue;
+ template<class F1, class F2, class F3> friend class PersistentValueMap;
+ template<class F1, class F2> friend class PersistentValueVector;
+ friend class Object;
+
+ explicit V8_INLINE PersistentBase(T* val) : val_(val) {}
+ PersistentBase(PersistentBase& other); // NOLINT
+ void operator=(PersistentBase&);
+ V8_INLINE static T* New(Isolate* isolate, T* that);
+
+ T* val_;
+};
+
+
+/**
+ * Default traits for Persistent. This class does not allow
+ * use of the copy constructor or assignment operator.
+ * At present kResetInDestructor is not set, but that will change in a future
+ * version.
+ */
+template<class T>
+class NonCopyablePersistentTraits {
+ public:
+ typedef Persistent<T, NonCopyablePersistentTraits<T> > NonCopyablePersistent;
+ static const bool kResetInDestructor = false;
+ template<class S, class M>
+ V8_INLINE static void Copy(const Persistent<S, M>& source,
+ NonCopyablePersistent* dest) {
+ Uncompilable<Object>();
+ }
+ // TODO(dcarney): come up with a good compile error here.
+ template<class O> V8_INLINE static void Uncompilable() {
+ TYPE_CHECK(O, Primitive);
+ }
+};
+
+
+/**
+ * Helper class traits to allow copying and assignment of Persistent.
+ * This will clone the contents of storage cell, but not any of the flags, etc.
+ */
+template<class T>
+struct CopyablePersistentTraits {
+ typedef Persistent<T, CopyablePersistentTraits<T> > CopyablePersistent;
+ static const bool kResetInDestructor = true;
+ template<class S, class M>
+ static V8_INLINE void Copy(const Persistent<S, M>& source,
+ CopyablePersistent* dest) {
+ // do nothing, just allow copy
+ }
+};
+
+
+/**
+ * A PersistentBase which allows copy and assignment.
+ *
+ * Copy, assignment and destructor bevavior is controlled by the traits
+ * class M.
+ *
+ * Note: Persistent class hierarchy is subject to future changes.
+ */
+template <class T, class M> class Persistent : public PersistentBase<T> {
+ public:
+ /**
+ * A Persistent with no storage cell.
+ */
+ V8_INLINE Persistent() : PersistentBase<T>(0) { }
+ /**
+ * Construct a Persistent from a Handle.
+ * When the Handle is non-empty, a new storage cell is created
+ * pointing to the same object, and no flags are set.
+ */
+ template <class S> V8_INLINE Persistent(Isolate* isolate, Handle<S> that)
+ : PersistentBase<T>(PersistentBase<T>::New(isolate, *that)) {
+ TYPE_CHECK(T, S);
+ }
+ /**
+ * Construct a Persistent from a Persistent.
+ * When the Persistent is non-empty, a new storage cell is created
+ * pointing to the same object, and no flags are set.
+ */
+ template <class S, class M2>
+ V8_INLINE Persistent(Isolate* isolate, const Persistent<S, M2>& that)
+ : PersistentBase<T>(PersistentBase<T>::New(isolate, *that)) {
+ TYPE_CHECK(T, S);
+ }
+ /**
+ * The copy constructors and assignment operator create a Persistent
+ * exactly as the Persistent constructor, but the Copy function from the
+ * traits class is called, allowing the setting of flags based on the
+ * copied Persistent.
+ */
+ V8_INLINE Persistent(const Persistent& that) : PersistentBase<T>(0) {
+ Copy(that);
+ }
+ template <class S, class M2>
+ V8_INLINE Persistent(const Persistent<S, M2>& that) : PersistentBase<T>(0) {
+ Copy(that);
+ }
+ V8_INLINE Persistent& operator=(const Persistent& that) { // NOLINT
+ Copy(that);
+ return *this;
+ }
+ template <class S, class M2>
+ V8_INLINE Persistent& operator=(const Persistent<S, M2>& that) { // NOLINT
+ Copy(that);
+ return *this;
+ }
+ /**
+ * The destructor will dispose the Persistent based on the
+ * kResetInDestructor flags in the traits class. Since not calling dispose
+ * can result in a memory leak, it is recommended to always set this flag.
+ */
+ V8_INLINE ~Persistent() {
+ if (M::kResetInDestructor) this->Reset();
+ }
+
+ // TODO(dcarney): this is pretty useless, fix or remove
+ template <class S>
+ V8_INLINE static Persistent<T>& Cast(Persistent<S>& that) { // NOLINT
#ifdef V8_ENABLE_CHECKS
// If we're going to perform the type check then we have to check
// that the handle isn't empty before doing the checked cast.
- if (that.IsEmpty()) return Persistent<T>();
+ if (!that.IsEmpty()) T::Cast(*that);
#endif
- return Persistent<T>(T::Cast(*that));
+ return reinterpret_cast<Persistent<T>&>(that);
}
- template <class S> inline Persistent<S> As() {
+ // TODO(dcarney): this is pretty useless, fix or remove
+ template <class S> V8_INLINE Persistent<S>& As() { // NOLINT
return Persistent<S>::Cast(*this);
}
- /**
- * Creates a new persistent handle for an existing local or
- * persistent handle.
- */
- inline static Persistent<T> New(Handle<T> that);
-
- /**
- * Releases the storage cell referenced by this persistent handle.
- * Does not remove the reference to the cell from any handles.
- * This handle's reference, and any other references to the storage
- * cell remain and IsEmpty will still return false.
- */
- inline void Dispose();
-
- /**
- * Make the reference to this object weak. When only weak handles
- * refer to the object, the garbage collector will perform a
- * callback to the given V8::WeakReferenceCallback function, passing
- * it the object reference and the given parameters.
- */
- inline void MakeWeak(void* parameters, WeakReferenceCallback callback);
-
- /** Clears the weak reference to this object.*/
- inline void ClearWeak();
-
- /**
- * Marks the reference to this object independent. Garbage collector
- * is free to ignore any object groups containing this object.
- * Weak callback for an independent handle should not
- * assume that it will be preceded by a global GC prologue callback
- * or followed by a global GC epilogue callback.
- */
- inline void MarkIndependent();
-
- /**
- *Checks if the handle holds the only reference to an object.
- */
- inline bool IsNearDeath() const;
-
- /**
- * Returns true if the handle's reference is weak.
- */
- inline bool IsWeak() const;
-
- /**
- * Assigns a wrapper class ID to the handle. See RetainedObjectInfo
- * interface description in v8-profiler.h for details.
- */
- inline void SetWrapperClassId(uint16_t class_id);
+ // This will be removed.
+ V8_INLINE T* ClearAndLeak();
private:
- friend class ImplementationUtilities;
- friend class ObjectTemplate;
+ friend class Isolate;
+ friend class Utils;
+ template<class F> friend class Handle;
+ template<class F> friend class Local;
+ template<class F1, class F2> friend class Persistent;
+ template<class F> friend class ReturnValue;
+
+ template <class S> V8_INLINE Persistent(S* that) : PersistentBase<T>(that) { }
+ V8_INLINE T* operator*() const { return this->val_; }
+ template<class S, class M2>
+ V8_INLINE void Copy(const Persistent<S, M2>& that);
+};
+
+
+/**
+ * A PersistentBase which has move semantics.
+ *
+ * Note: Persistent class hierarchy is subject to future changes.
+ */
+template<class T>
+class UniquePersistent : public PersistentBase<T> {
+ struct RValue {
+ V8_INLINE explicit RValue(UniquePersistent* obj) : object(obj) {}
+ UniquePersistent* object;
+ };
+
+ public:
+ /**
+ * A UniquePersistent with no storage cell.
+ */
+ V8_INLINE UniquePersistent() : PersistentBase<T>(0) { }
+ /**
+ * Construct a UniquePersistent from a Handle.
+ * When the Handle is non-empty, a new storage cell is created
+ * pointing to the same object, and no flags are set.
+ */
+ template <class S>
+ V8_INLINE UniquePersistent(Isolate* isolate, Handle<S> that)
+ : PersistentBase<T>(PersistentBase<T>::New(isolate, *that)) {
+ TYPE_CHECK(T, S);
+ }
+ /**
+ * Construct a UniquePersistent from a PersistentBase.
+ * When the Persistent is non-empty, a new storage cell is created
+ * pointing to the same object, and no flags are set.
+ */
+ template <class S>
+ V8_INLINE UniquePersistent(Isolate* isolate, const PersistentBase<S>& that)
+ : PersistentBase<T>(PersistentBase<T>::New(isolate, that.val_)) {
+ TYPE_CHECK(T, S);
+ }
+ /**
+ * Move constructor.
+ */
+ V8_INLINE UniquePersistent(RValue rvalue)
+ : PersistentBase<T>(rvalue.object->val_) {
+ rvalue.object->val_ = 0;
+ }
+ V8_INLINE ~UniquePersistent() { this->Reset(); }
+ /**
+ * Move via assignment.
+ */
+ template<class S>
+ V8_INLINE UniquePersistent& operator=(UniquePersistent<S> rhs) {
+ TYPE_CHECK(T, S);
+ this->Reset();
+ this->val_ = rhs.val_;
+ rhs.val_ = 0;
+ return *this;
+ }
+ /**
+ * Cast operator for moves.
+ */
+ V8_INLINE operator RValue() { return RValue(this); }
+ /**
+ * Pass allows returning uniques from functions, etc.
+ */
+ UniquePersistent Pass() { return UniquePersistent(RValue(this)); }
+
+ private:
+ UniquePersistent(UniquePersistent&);
+ void operator=(UniquePersistent&);
};
@@ -433,275 +799,455 @@
* handle and may deallocate it. The behavior of accessing a handle
* for which the handle scope has been deleted is undefined.
*/
-class V8EXPORT HandleScope {
+class V8_EXPORT HandleScope {
public:
- HandleScope();
+ HandleScope(Isolate* isolate);
~HandleScope();
/**
- * Closes the handle scope and returns the value as a handle in the
- * previous scope, which is the new current scope after the call.
- */
- template <class T> Local<T> Close(Handle<T> value);
-
- /**
* Counts the number of allocated handles.
*/
- static int NumberOfHandles();
+ static int NumberOfHandles(Isolate* isolate);
- /**
- * Creates a new handle with the given value.
- */
- static internal::Object** CreateHandle(internal::Object* value);
- // Faster version, uses HeapObject to obtain the current Isolate.
- static internal::Object** CreateHandle(internal::HeapObject* value);
+ V8_INLINE Isolate* GetIsolate() const {
+ return reinterpret_cast<Isolate*>(isolate_);
+ }
+
+ protected:
+ V8_INLINE HandleScope() {}
+
+ void Initialize(Isolate* isolate);
+
+ static internal::Object** CreateHandle(internal::Isolate* isolate,
+ internal::Object* value);
private:
- // Make it impossible to create heap-allocated or illegal handle
- // scopes by disallowing certain operations.
+ // Uses heap_object to obtain the current Isolate.
+ static internal::Object** CreateHandle(internal::HeapObject* heap_object,
+ internal::Object* value);
+
+ // Make it hard to create heap-allocated or illegal handle scopes by
+ // disallowing certain operations.
HandleScope(const HandleScope&);
void operator=(const HandleScope&);
void* operator new(size_t size);
void operator delete(void*, size_t);
- // This Data class is accessible internally as HandleScopeData through a
- // typedef in the ImplementationUtilities class.
- class V8EXPORT Data {
- public:
- internal::Object** next;
- internal::Object** limit;
- int level;
- inline void Initialize() {
- next = limit = NULL;
- level = 0;
- }
- };
-
- void Leave();
-
internal::Isolate* isolate_;
internal::Object** prev_next_;
internal::Object** prev_limit_;
- // Allow for the active closing of HandleScopes which allows to pass a handle
- // from the HandleScope being closed to the next top most HandleScope.
- bool is_closed_;
- internal::Object** RawClose(internal::Object** value);
+ // Local::New uses CreateHandle with an Isolate* parameter.
+ template<class F> friend class Local;
- friend class ImplementationUtilities;
+ // Object::GetInternalField and Context::GetEmbedderData use CreateHandle with
+ // a HeapObject* in their shortcuts.
+ friend class Object;
+ friend class Context;
};
+/**
+ * A HandleScope which first allocates a handle in the current scope
+ * which will be later filled with the escape value.
+ */
+class V8_EXPORT EscapableHandleScope : public HandleScope {
+ public:
+ EscapableHandleScope(Isolate* isolate);
+ V8_INLINE ~EscapableHandleScope() {}
+
+ /**
+ * Pushes the value into the previous scope and returns a handle to it.
+ * Cannot be called twice.
+ */
+ template <class T>
+ V8_INLINE Local<T> Escape(Local<T> value) {
+ internal::Object** slot =
+ Escape(reinterpret_cast<internal::Object**>(*value));
+ return Local<T>(reinterpret_cast<T*>(slot));
+ }
+
+ private:
+ internal::Object** Escape(internal::Object** escape_value);
+
+ // Make it hard to create heap-allocated or illegal handle scopes by
+ // disallowing certain operations.
+ EscapableHandleScope(const EscapableHandleScope&);
+ void operator=(const EscapableHandleScope&);
+ void* operator new(size_t size);
+ void operator delete(void*, size_t);
+
+ internal::Object** escape_slot_;
+};
+
+
+/**
+ * A simple Maybe type, representing an object which may or may not have a
+ * value.
+ */
+template<class T>
+struct Maybe {
+ Maybe() : has_value(false) {}
+ explicit Maybe(T t) : has_value(true), value(t) {}
+ Maybe(bool has, T t) : has_value(has), value(t) {}
+
+ bool has_value;
+ T value;
+};
+
+
+// Convenience wrapper.
+template <class T>
+inline Maybe<T> maybe(T t) {
+ return Maybe<T>(t);
+}
+
+
// --- Special objects ---
/**
* The superclass of values and API object templates.
*/
-class V8EXPORT Data {
+class V8_EXPORT Data {
private:
Data();
};
/**
- * Pre-compilation data that can be associated with a script. This
- * data can be calculated for a script in advance of actually
- * compiling it, and can be stored between compilations. When script
- * data is given to the compile method compilation will be faster.
- */
-class V8EXPORT ScriptData { // NOLINT
- public:
- virtual ~ScriptData() { }
-
- /**
- * Pre-compiles the specified script (context-independent).
- *
- * \param input Pointer to UTF-8 script source code.
- * \param length Length of UTF-8 script source code.
- */
- static ScriptData* PreCompile(const char* input, int length);
-
- /**
- * Pre-compiles the specified script (context-independent).
- *
- * NOTE: Pre-compilation using this method cannot happen on another thread
- * without using Lockers.
- *
- * \param source Script source code.
- */
- static ScriptData* PreCompile(Handle<String> source);
-
- /**
- * Load previous pre-compilation data.
- *
- * \param data Pointer to data returned by a call to Data() of a previous
- * ScriptData. Ownership is not transferred.
- * \param length Length of data.
- */
- static ScriptData* New(const char* data, int length);
-
- /**
- * Returns the length of Data().
- */
- virtual int Length() = 0;
-
- /**
- * Returns a serialized representation of this ScriptData that can later be
- * passed to New(). NOTE: Serialized data is platform-dependent.
- */
- virtual const char* Data() = 0;
-
- /**
- * Returns true if the source code could not be parsed.
- */
- virtual bool HasError() = 0;
-};
-
-
-/**
* The origin, within a file, of a script.
*/
class ScriptOrigin {
public:
- inline ScriptOrigin(
+ V8_INLINE ScriptOrigin(
Handle<Value> resource_name,
Handle<Integer> resource_line_offset = Handle<Integer>(),
- Handle<Integer> resource_column_offset = Handle<Integer>())
+ Handle<Integer> resource_column_offset = Handle<Integer>(),
+ Handle<Boolean> resource_is_shared_cross_origin = Handle<Boolean>(),
+ Handle<Integer> script_id = Handle<Integer>())
: resource_name_(resource_name),
resource_line_offset_(resource_line_offset),
- resource_column_offset_(resource_column_offset) { }
- inline Handle<Value> ResourceName() const;
- inline Handle<Integer> ResourceLineOffset() const;
- inline Handle<Integer> ResourceColumnOffset() const;
+ resource_column_offset_(resource_column_offset),
+ resource_is_shared_cross_origin_(resource_is_shared_cross_origin),
+ script_id_(script_id) { }
+ V8_INLINE Handle<Value> ResourceName() const;
+ V8_INLINE Handle<Integer> ResourceLineOffset() const;
+ V8_INLINE Handle<Integer> ResourceColumnOffset() const;
+ V8_INLINE Handle<Boolean> ResourceIsSharedCrossOrigin() const;
+ V8_INLINE Handle<Integer> ScriptID() const;
private:
Handle<Value> resource_name_;
Handle<Integer> resource_line_offset_;
Handle<Integer> resource_column_offset_;
+ Handle<Boolean> resource_is_shared_cross_origin_;
+ Handle<Integer> script_id_;
};
/**
- * A compiled JavaScript script.
+ * A compiled JavaScript script, not yet tied to a Context.
*/
-class V8EXPORT Script {
+class V8_EXPORT UnboundScript {
public:
/**
- * Compiles the specified script (context-independent).
- *
- * \param source Script source code.
- * \param origin Script origin, owned by caller, no references are kept
- * when New() returns
- * \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
- * using pre_data speeds compilation if it's done multiple times.
- * Owned by caller, no references are kept when New() returns.
- * \param script_data Arbitrary data associated with script. Using
- * this has same effect as calling SetData(), but allows data to be
- * available to compile event handlers.
- * \return Compiled script object (context independent; when run it
- * will use the currently entered context).
+ * Binds the script to the currently entered context.
*/
- static Local<Script> New(Handle<String> source,
- ScriptOrigin* origin = NULL,
- ScriptData* pre_data = NULL,
- Handle<String> script_data = Handle<String>());
+ Local<Script> BindToCurrentContext();
+
+ int GetId();
+ Handle<Value> GetScriptName();
/**
- * Compiles the specified script using the specified file name
- * object (typically a string) as the script's origin.
+ * Data read from magic sourceURL comments.
+ */
+ Handle<Value> GetSourceURL();
+ /**
+ * Data read from magic sourceMappingURL comments.
+ */
+ Handle<Value> GetSourceMappingURL();
+
+ /**
+ * Returns zero based line number of the code_pos location in the script.
+ * -1 will be returned if no information available.
+ */
+ int GetLineNumber(int code_pos);
+
+ static const int kNoScriptId = 0;
+};
+
+
+/**
+ * A compiled JavaScript script, tied to a Context which was active when the
+ * script was compiled.
+ */
+class V8_EXPORT Script {
+ public:
+ /**
+ * A shorthand for ScriptCompiler::Compile().
+ */
+ static Local<Script> Compile(Handle<String> source,
+ ScriptOrigin* origin = NULL);
+
+ // To be decprecated, use the Compile above.
+ static Local<Script> Compile(Handle<String> source,
+ Handle<String> file_name);
+
+ /**
+ * Runs the script returning the resulting value. It will be run in the
+ * context in which it was created (ScriptCompiler::CompileBound or
+ * UnboundScript::BindToGlobalContext()).
+ */
+ Local<Value> Run();
+
+ /**
+ * Returns the corresponding context-unbound script.
+ */
+ Local<UnboundScript> GetUnboundScript();
+
+ V8_DEPRECATED("Use GetUnboundScript()->GetId()",
+ int GetId()) {
+ return GetUnboundScript()->GetId();
+ }
+};
+
+
+/**
+ * For compiling scripts.
+ */
+class V8_EXPORT ScriptCompiler {
+ public:
+ /**
+ * Compilation data that the embedder can cache and pass back to speed up
+ * future compilations. The data is produced if the CompilerOptions passed to
+ * the compilation functions in ScriptCompiler contains produce_data_to_cache
+ * = true. The data to cache can then can be retrieved from
+ * UnboundScript.
+ */
+ struct V8_EXPORT CachedData {
+ enum BufferPolicy {
+ BufferNotOwned,
+ BufferOwned
+ };
+
+ CachedData() : data(NULL), length(0), buffer_policy(BufferNotOwned) {}
+
+ // If buffer_policy is BufferNotOwned, the caller keeps the ownership of
+ // data and guarantees that it stays alive until the CachedData object is
+ // destroyed. If the policy is BufferOwned, the given data will be deleted
+ // (with delete[]) when the CachedData object is destroyed.
+ CachedData(const uint8_t* data, int length,
+ BufferPolicy buffer_policy = BufferNotOwned);
+ ~CachedData();
+ // TODO(marja): Async compilation; add constructors which take a callback
+ // which will be called when V8 no longer needs the data.
+ const uint8_t* data;
+ int length;
+ BufferPolicy buffer_policy;
+
+ private:
+ // Prevent copying. Not implemented.
+ CachedData(const CachedData&);
+ CachedData& operator=(const CachedData&);
+ };
+
+ /**
+ * Source code which can be then compiled to a UnboundScript or Script.
+ */
+ class Source {
+ public:
+ // Source takes ownership of CachedData.
+ V8_INLINE Source(Local<String> source_string, const ScriptOrigin& origin,
+ CachedData* cached_data = NULL);
+ V8_INLINE Source(Local<String> source_string,
+ CachedData* cached_data = NULL);
+ V8_INLINE ~Source();
+
+ // Ownership of the CachedData or its buffers is *not* transferred to the
+ // caller. The CachedData object is alive as long as the Source object is
+ // alive.
+ V8_INLINE const CachedData* GetCachedData() const;
+
+ private:
+ friend class ScriptCompiler;
+ // Prevent copying. Not implemented.
+ Source(const Source&);
+ Source& operator=(const Source&);
+
+ Local<String> source_string;
+
+ // Origin information
+ Handle<Value> resource_name;
+ Handle<Integer> resource_line_offset;
+ Handle<Integer> resource_column_offset;
+ Handle<Boolean> resource_is_shared_cross_origin;
+
+ // Cached data from previous compilation (if a kConsume*Cache flag is
+ // set), or hold newly generated cache data (kProduce*Cache flags) are
+ // set when calling a compile method.
+ CachedData* cached_data;
+ };
+
+ /**
+ * For streaming incomplete script data to V8. The embedder should implement a
+ * subclass of this class.
+ */
+ class ExternalSourceStream {
+ public:
+ virtual ~ExternalSourceStream() {}
+
+ /**
+ * V8 calls this to request the next chunk of data from the embedder. This
+ * function will be called on a background thread, so it's OK to block and
+ * wait for the data, if the embedder doesn't have data yet. Returns the
+ * length of the data returned. When the data ends, GetMoreData should
+ * return 0. Caller takes ownership of the data.
+ *
+ * When streaming UTF-8 data, V8 handles multi-byte characters split between
+ * two data chunks, but doesn't handle multi-byte characters split between
+ * more than two data chunks. The embedder can avoid this problem by always
+ * returning at least 2 bytes of data.
+ *
+ * If the embedder wants to cancel the streaming, they should make the next
+ * GetMoreData call return 0. V8 will interpret it as end of data (and most
+ * probably, parsing will fail). The streaming task will return as soon as
+ * V8 has parsed the data it received so far.
+ */
+ virtual size_t GetMoreData(const uint8_t** src) = 0;
+ };
+
+
+ /**
+ * Source code which can be streamed into V8 in pieces. It will be parsed
+ * while streaming. It can be compiled after the streaming is complete.
+ * StreamedSource must be kept alive while the streaming task is ran (see
+ * ScriptStreamingTask below).
+ */
+ class V8_EXPORT StreamedSource {
+ public:
+ enum Encoding { ONE_BYTE, TWO_BYTE, UTF8 };
+
+ StreamedSource(ExternalSourceStream* source_stream, Encoding encoding);
+ ~StreamedSource();
+
+ // Ownership of the CachedData or its buffers is *not* transferred to the
+ // caller. The CachedData object is alive as long as the StreamedSource
+ // object is alive.
+ const CachedData* GetCachedData() const;
+
+ internal::StreamedSource* impl() const { return impl_; }
+
+ private:
+ // Prevent copying. Not implemented.
+ StreamedSource(const StreamedSource&);
+ StreamedSource& operator=(const StreamedSource&);
+
+ internal::StreamedSource* impl_;
+ };
+
+ /**
+ * A streaming task which the embedder must run on a background thread to
+ * stream scripts into V8. Returned by ScriptCompiler::StartStreamingScript.
+ */
+ class ScriptStreamingTask {
+ public:
+ virtual ~ScriptStreamingTask() {}
+ virtual void Run() = 0;
+ };
+
+ enum CompileOptions {
+ kNoCompileOptions = 0,
+ kProduceParserCache,
+ kConsumeParserCache,
+ kProduceCodeCache,
+ kConsumeCodeCache,
+
+ // Support the previous API for a transition period.
+ kProduceDataToCache
+ };
+
+ /**
+ * Compiles the specified script (context-independent).
+ * Cached data as part of the source object can be optionally produced to be
+ * consumed later to speed up compilation of identical source scripts.
+ *
+ * Note that when producing cached data, the source must point to NULL for
+ * cached data. When consuming cached data, the cached data must have been
+ * produced by the same version of V8.
*
* \param source Script source code.
- * \param file_name file name object (typically a string) to be used
- * as the script's origin.
- * \return Compiled script object (context independent; when run it
- * will use the currently entered context).
+ * \return Compiled script object (context independent; for running it must be
+ * bound to a context).
*/
- static Local<Script> New(Handle<String> source,
- Handle<Value> file_name);
+ static Local<UnboundScript> CompileUnbound(
+ Isolate* isolate, Source* source,
+ CompileOptions options = kNoCompileOptions);
/**
* Compiles the specified script (bound to current context).
*
* \param source Script source code.
- * \param origin Script origin, owned by caller, no references are kept
- * when Compile() returns
* \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
* using pre_data speeds compilation if it's done multiple times.
- * Owned by caller, no references are kept when Compile() returns.
- * \param script_data Arbitrary data associated with script. Using
- * this has same effect as calling SetData(), but makes data available
- * earlier (i.e. to compile event handlers).
+ * Owned by caller, no references are kept when this function returns.
* \return Compiled script object, bound to the context that was active
- * when this function was called. When run it will always use this
+ * when this function was called. When run it will always use this
* context.
*/
- static Local<Script> Compile(Handle<String> source,
- ScriptOrigin* origin = NULL,
- ScriptData* pre_data = NULL,
- Handle<String> script_data = Handle<String>());
+ static Local<Script> Compile(
+ Isolate* isolate, Source* source,
+ CompileOptions options = kNoCompileOptions);
/**
- * Compiles the specified script using the specified file name
- * object (typically a string) as the script's origin.
+ * Returns a task which streams script data into V8, or NULL if the script
+ * cannot be streamed. The user is responsible for running the task on a
+ * background thread and deleting it. When ran, the task starts parsing the
+ * script, and it will request data from the StreamedSource as needed. When
+ * ScriptStreamingTask::Run exits, all data has been streamed and the script
+ * can be compiled (see Compile below).
*
- * \param source Script source code.
- * \param file_name File name to use as script's origin
- * \param script_data Arbitrary data associated with script. Using
- * this has same effect as calling SetData(), but makes data available
- * earlier (i.e. to compile event handlers).
- * \return Compiled script object, bound to the context that was active
- * when this function was called. When run it will always use this
- * context.
+ * This API allows to start the streaming with as little data as possible, and
+ * the remaining data (for example, the ScriptOrigin) is passed to Compile.
*/
- static Local<Script> Compile(Handle<String> source,
- Handle<Value> file_name,
- Handle<String> script_data = Handle<String>());
+ static ScriptStreamingTask* StartStreamingScript(
+ Isolate* isolate, StreamedSource* source,
+ CompileOptions options = kNoCompileOptions);
/**
- * Runs the script returning the resulting value. If the script is
- * context independent (created using ::New) it will be run in the
- * currently entered context. If it is context specific (created
- * using ::Compile) it will be run in the context in which it was
- * compiled.
+ * Compiles a streamed script (bound to current context).
+ *
+ * This can only be called after the streaming has finished
+ * (ScriptStreamingTask has been run). V8 doesn't construct the source string
+ * during streaming, so the embedder needs to pass the full source here.
*/
- Local<Value> Run();
-
- /**
- * Returns the script id value.
- */
- Local<Value> Id();
-
- /**
- * Associate an additional data object with the script. This is mainly used
- * with the debugger as this data object is only available through the
- * debugger API.
- */
- void SetData(Handle<String> data);
+ static Local<Script> Compile(Isolate* isolate, StreamedSource* source,
+ Handle<String> full_source_string,
+ const ScriptOrigin& origin);
};
/**
* An error message.
*/
-class V8EXPORT Message {
+class V8_EXPORT Message {
public:
Local<String> Get() const;
Local<String> GetSourceLine() const;
/**
+ * Returns the origin for the script from where the function causing the
+ * error originates.
+ */
+ ScriptOrigin GetScriptOrigin() const;
+
+ /**
* Returns the resource name for the script from where the function causing
* the error originates.
*/
Handle<Value> GetScriptResourceName() const;
/**
- * Returns the resource data for the script from where the function causing
- * the error originates.
- */
- Handle<Value> GetScriptData() const;
-
- /**
* Exception stack trace. By default stack traces are not captured for
* uncaught exceptions. SetCaptureStackTraceForUncaughtExceptions allows
* to change this option.
@@ -737,11 +1283,18 @@
*/
int GetEndColumn() const;
+ /**
+ * Passes on the value set by the embedder when it fed the script from which
+ * this Message was generated to V8.
+ */
+ bool IsSharedCrossOrigin() const;
+
// TODO(1245381): Print to a string instead of on a FILE.
- static void PrintCurrentStackTrace(FILE* out);
+ static void PrintCurrentStackTrace(Isolate* isolate, FILE* out);
static const int kNoLineNumberInfo = 0;
static const int kNoColumnInfo = 0;
+ static const int kNoScriptIdInfo = 0;
};
@@ -750,7 +1303,7 @@
* snapshot of the execution stack and the information remains valid after
* execution continues.
*/
-class V8EXPORT StackTrace {
+class V8_EXPORT StackTrace {
public:
/**
* Flags that determine what information is placed captured for each
@@ -764,6 +1317,8 @@
kIsEval = 1 << 4,
kIsConstructor = 1 << 5,
kScriptNameOrSourceURL = 1 << 6,
+ kScriptId = 1 << 7,
+ kExposeFramesAcrossSecurityOrigins = 1 << 8,
kOverview = kLineNumber | kColumnOffset | kScriptName | kFunctionName,
kDetailed = kOverview | kIsEval | kIsConstructor | kScriptNameOrSourceURL
};
@@ -791,6 +1346,7 @@
* StackFrame.
*/
static Local<StackTrace> CurrentStackTrace(
+ Isolate* isolate,
int frame_limit,
StackTraceOptions options = kOverview);
};
@@ -799,7 +1355,7 @@
/**
* A single JavaScript stack frame.
*/
-class V8EXPORT StackFrame {
+class V8_EXPORT StackFrame {
public:
/**
* Returns the number, 1-based, of the line for the associate function call.
@@ -819,6 +1375,14 @@
int GetColumn() const;
/**
+ * Returns the id of the script for the function for this StackFrame.
+ * This method will return Message::kNoScriptIdInfo if it is unable to
+ * retrieve the script id, or if kScriptId was not passed as an option when
+ * capturing the StackTrace.
+ */
+ int GetScriptId() const;
+
+ /**
* Returns the name of the resource that contains the script for the
* function for this StackFrame.
*/
@@ -827,7 +1391,8 @@
/**
* Returns the name of the resource that contains the script for the
* function for this StackFrame or sourceURL value if the script name
- * is undefined and its source ends with //@ sourceURL=... string.
+ * is undefined and its source ends with //# sourceURL=... string or
+ * deprecated //@ sourceURL=... string.
*/
Local<String> GetScriptNameOrSourceURL() const;
@@ -850,183 +1415,359 @@
};
+/**
+ * A JSON Parser.
+ */
+class V8_EXPORT JSON {
+ public:
+ /**
+ * Tries to parse the string |json_string| and returns it as value if
+ * successful.
+ *
+ * \param json_string The string to parse.
+ * \return The corresponding value if successfully parsed.
+ */
+ static Local<Value> Parse(Local<String> json_string);
+};
+
+
// --- Value ---
/**
* The superclass of all JavaScript values and objects.
*/
-class Value : public Data {
+class V8_EXPORT Value : public Data {
public:
/**
* Returns true if this value is the undefined value. See ECMA-262
* 4.3.10.
*/
- V8EXPORT bool IsUndefined() const;
+ V8_INLINE bool IsUndefined() const;
/**
* Returns true if this value is the null value. See ECMA-262
* 4.3.11.
*/
- V8EXPORT bool IsNull() const;
+ V8_INLINE bool IsNull() const;
/**
* Returns true if this value is true.
*/
- V8EXPORT bool IsTrue() const;
+ bool IsTrue() const;
/**
* Returns true if this value is false.
*/
- V8EXPORT bool IsFalse() const;
+ bool IsFalse() const;
+
+ /**
+ * Returns true if this value is a symbol or a string.
+ * This is an experimental feature.
+ */
+ bool IsName() const;
/**
* Returns true if this value is an instance of the String type.
* See ECMA-262 8.4.
*/
- inline bool IsString() const;
+ V8_INLINE bool IsString() const;
+
+ /**
+ * Returns true if this value is a symbol.
+ * This is an experimental feature.
+ */
+ bool IsSymbol() const;
/**
* Returns true if this value is a function.
*/
- V8EXPORT bool IsFunction() const;
+ bool IsFunction() const;
/**
* Returns true if this value is an array.
*/
- V8EXPORT bool IsArray() const;
+ bool IsArray() const;
/**
* Returns true if this value is an object.
*/
- V8EXPORT bool IsObject() const;
+ bool IsObject() const;
/**
* Returns true if this value is boolean.
*/
- V8EXPORT bool IsBoolean() const;
+ bool IsBoolean() const;
/**
* Returns true if this value is a number.
*/
- V8EXPORT bool IsNumber() const;
+ bool IsNumber() const;
/**
* Returns true if this value is external.
*/
- V8EXPORT bool IsExternal() const;
+ bool IsExternal() const;
/**
* Returns true if this value is a 32-bit signed integer.
*/
- V8EXPORT bool IsInt32() const;
+ bool IsInt32() const;
/**
* Returns true if this value is a 32-bit unsigned integer.
*/
- V8EXPORT bool IsUint32() const;
+ bool IsUint32() const;
/**
* Returns true if this value is a Date.
*/
- V8EXPORT bool IsDate() const;
+ bool IsDate() const;
+
+ /**
+ * Returns true if this value is an Arguments object.
+ */
+ bool IsArgumentsObject() const;
/**
* Returns true if this value is a Boolean object.
*/
- V8EXPORT bool IsBooleanObject() const;
+ bool IsBooleanObject() const;
/**
* Returns true if this value is a Number object.
*/
- V8EXPORT bool IsNumberObject() const;
+ bool IsNumberObject() const;
/**
* Returns true if this value is a String object.
*/
- V8EXPORT bool IsStringObject() const;
+ bool IsStringObject() const;
+
+ /**
+ * Returns true if this value is a Symbol object.
+ * This is an experimental feature.
+ */
+ bool IsSymbolObject() const;
/**
* Returns true if this value is a NativeError.
*/
- V8EXPORT bool IsNativeError() const;
+ bool IsNativeError() const;
/**
* Returns true if this value is a RegExp.
*/
- V8EXPORT bool IsRegExp() const;
+ bool IsRegExp() const;
- V8EXPORT Local<Boolean> ToBoolean() const;
- V8EXPORT Local<Number> ToNumber() const;
- V8EXPORT Local<String> ToString() const;
- V8EXPORT Local<String> ToDetailString() const;
- V8EXPORT Local<Object> ToObject() const;
- V8EXPORT Local<Integer> ToInteger() const;
- V8EXPORT Local<Uint32> ToUint32() const;
- V8EXPORT Local<Int32> ToInt32() const;
+ /**
+ * Returns true if this value is a Promise.
+ * This is an experimental feature.
+ */
+ bool IsPromise() const;
+
+ /**
+ * Returns true if this value is a Map.
+ * This is an experimental feature.
+ */
+ bool IsMap() const;
+
+ /**
+ * Returns true if this value is a Set.
+ * This is an experimental feature.
+ */
+ bool IsSet() const;
+
+ /**
+ * Returns true if this value is a WeakMap.
+ * This is an experimental feature.
+ */
+ bool IsWeakMap() const;
+
+ /**
+ * Returns true if this value is a WeakSet.
+ * This is an experimental feature.
+ */
+ bool IsWeakSet() const;
+
+ /**
+ * Returns true if this value is an ArrayBuffer.
+ * This is an experimental feature.
+ */
+ bool IsArrayBuffer() const;
+
+ /**
+ * Returns true if this value is an ArrayBufferView.
+ * This is an experimental feature.
+ */
+ bool IsArrayBufferView() const;
+
+ /**
+ * Returns true if this value is one of TypedArrays.
+ * This is an experimental feature.
+ */
+ bool IsTypedArray() const;
+
+ /**
+ * Returns true if this value is an Uint8Array.
+ * This is an experimental feature.
+ */
+ bool IsUint8Array() const;
+
+ /**
+ * Returns true if this value is an Uint8ClampedArray.
+ * This is an experimental feature.
+ */
+ bool IsUint8ClampedArray() const;
+
+ /**
+ * Returns true if this value is an Int8Array.
+ * This is an experimental feature.
+ */
+ bool IsInt8Array() const;
+
+ /**
+ * Returns true if this value is an Uint16Array.
+ * This is an experimental feature.
+ */
+ bool IsUint16Array() const;
+
+ /**
+ * Returns true if this value is an Int16Array.
+ * This is an experimental feature.
+ */
+ bool IsInt16Array() const;
+
+ /**
+ * Returns true if this value is an Uint32Array.
+ * This is an experimental feature.
+ */
+ bool IsUint32Array() const;
+
+ /**
+ * Returns true if this value is an Int32Array.
+ * This is an experimental feature.
+ */
+ bool IsInt32Array() const;
+
+ /**
+ * Returns true if this value is a Float32Array.
+ * This is an experimental feature.
+ */
+ bool IsFloat32Array() const;
+
+ /**
+ * Returns true if this value is a Float64Array.
+ * This is an experimental feature.
+ */
+ bool IsFloat64Array() const;
+
+ /**
+ * Returns true if this value is a DataView.
+ * This is an experimental feature.
+ */
+ bool IsDataView() const;
+
+ Local<Boolean> ToBoolean() const;
+ Local<Number> ToNumber() const;
+ Local<String> ToString() const;
+ Local<String> ToDetailString() const;
+ Local<Object> ToObject() const;
+ Local<Integer> ToInteger() const;
+ Local<Uint32> ToUint32() const;
+ Local<Int32> ToInt32() const;
/**
* Attempts to convert a string to an array index.
* Returns an empty handle if the conversion fails.
*/
- V8EXPORT Local<Uint32> ToArrayIndex() const;
+ Local<Uint32> ToArrayIndex() const;
- V8EXPORT bool BooleanValue() const;
- V8EXPORT double NumberValue() const;
- V8EXPORT int64_t IntegerValue() const;
- V8EXPORT uint32_t Uint32Value() const;
- V8EXPORT int32_t Int32Value() const;
+ bool BooleanValue() const;
+ double NumberValue() const;
+ int64_t IntegerValue() const;
+ uint32_t Uint32Value() const;
+ int32_t Int32Value() const;
/** JS == */
- V8EXPORT bool Equals(Handle<Value> that) const;
- V8EXPORT bool StrictEquals(Handle<Value> that) const;
+ bool Equals(Handle<Value> that) const;
+ bool StrictEquals(Handle<Value> that) const;
+ bool SameValue(Handle<Value> that) const;
+
+ template <class T> V8_INLINE static Value* Cast(T* value);
private:
- inline bool QuickIsString() const;
- V8EXPORT bool FullIsString() const;
+ V8_INLINE bool QuickIsUndefined() const;
+ V8_INLINE bool QuickIsNull() const;
+ V8_INLINE bool QuickIsString() const;
+ bool FullIsUndefined() const;
+ bool FullIsNull() const;
+ bool FullIsString() const;
};
/**
* The superclass of primitive values. See ECMA-262 4.3.2.
*/
-class Primitive : public Value { };
+class V8_EXPORT Primitive : public Value { };
/**
* A primitive boolean value (ECMA-262, 4.3.14). Either the true
* or false value.
*/
-class Boolean : public Primitive {
+class V8_EXPORT Boolean : public Primitive {
public:
- V8EXPORT bool Value() const;
- static inline Handle<Boolean> New(bool value);
+ bool Value() const;
+ V8_INLINE static Handle<Boolean> New(Isolate* isolate, bool value);
+};
+
+
+/**
+ * A superclass for symbols and strings.
+ */
+class V8_EXPORT Name : public Primitive {
+ public:
+ V8_INLINE static Name* Cast(v8::Value* obj);
+ private:
+ static void CheckCast(v8::Value* obj);
};
/**
* A JavaScript string value (ECMA-262, 4.3.17).
*/
-class String : public Primitive {
+class V8_EXPORT String : public Name {
public:
+ enum Encoding {
+ UNKNOWN_ENCODING = 0x1,
+ TWO_BYTE_ENCODING = 0x0,
+ ASCII_ENCODING = 0x4, // TODO(yangguo): deprecate this.
+ ONE_BYTE_ENCODING = 0x4
+ };
/**
* Returns the number of characters in this string.
*/
- V8EXPORT int Length() const;
+ int Length() const;
/**
* Returns the number of bytes in the UTF-8 encoded
* representation of this string.
*/
- V8EXPORT int Utf8Length() const;
+ int Utf8Length() const;
/**
- * A fast conservative check for non-ASCII characters. May
- * return true even for ASCII strings, but if it returns
- * false you can be sure that all characters are in the range
- * 0-127.
+ * Returns whether this string is known to contain only one byte data.
+ * Does not read the string.
+ * False negatives are possible.
*/
- V8EXPORT bool MayContainNonAscii() const;
+ bool IsOneByte() const;
+
+ /**
+ * Returns whether this string contain only one byte data.
+ * Will read the entire string in some cases.
+ */
+ bool ContainsOnlyOneByte() const;
/**
* Write the contents of the string to an external buffer.
@@ -1056,41 +1797,50 @@
enum WriteOptions {
NO_OPTIONS = 0,
HINT_MANY_WRITES_EXPECTED = 1,
- NO_NULL_TERMINATION = 2
+ NO_NULL_TERMINATION = 2,
+ PRESERVE_ASCII_NULL = 4, // TODO(yangguo): deprecate this.
+ PRESERVE_ONE_BYTE_NULL = 4,
+ // Used by WriteUtf8 to replace orphan surrogate code units with the
+ // unicode replacement character. Needs to be set to guarantee valid UTF-8
+ // output.
+ REPLACE_INVALID_UTF8 = 8
};
// 16-bit character codes.
- V8EXPORT int Write(uint16_t* buffer,
- int start = 0,
- int length = -1,
- int options = NO_OPTIONS) const;
- // ASCII characters.
- V8EXPORT int WriteAscii(char* buffer,
- int start = 0,
- int length = -1,
- int options = NO_OPTIONS) const;
+ int Write(uint16_t* buffer,
+ int start = 0,
+ int length = -1,
+ int options = NO_OPTIONS) const;
+ // One byte characters.
+ int WriteOneByte(uint8_t* buffer,
+ int start = 0,
+ int length = -1,
+ int options = NO_OPTIONS) const;
// UTF-8 encoded characters.
- V8EXPORT int WriteUtf8(char* buffer,
- int length = -1,
- int* nchars_ref = NULL,
- int options = NO_OPTIONS) const;
+ int WriteUtf8(char* buffer,
+ int length = -1,
+ int* nchars_ref = NULL,
+ int options = NO_OPTIONS) const;
/**
* A zero length string.
*/
- V8EXPORT static v8::Local<v8::String> Empty();
+ V8_INLINE static v8::Local<v8::String> Empty(Isolate* isolate);
/**
* Returns true if the string is external
*/
- V8EXPORT bool IsExternal() const;
+ bool IsExternal() const;
/**
- * Returns true if the string is both external and ASCII
+ * Returns true if the string is both external and one-byte.
*/
- V8EXPORT bool IsExternalAscii() const;
+ bool IsExternalOneByte() const;
- class V8EXPORT ExternalStringResourceBase { // NOLINT
+ // TODO(yangguo): deprecate this.
+ bool IsExternalAscii() const { return IsExternalOneByte(); }
+
+ class V8_EXPORT ExternalStringResourceBase { // NOLINT
public:
virtual ~ExternalStringResourceBase() {}
@@ -1119,7 +1869,7 @@
* ExternalStringResource to manage the life cycle of the underlying
* buffer. Note that the string data must be immutable.
*/
- class V8EXPORT ExternalStringResource
+ class V8_EXPORT ExternalStringResource
: public ExternalStringResourceBase {
public:
/**
@@ -1143,70 +1893,89 @@
};
/**
- * An ExternalAsciiStringResource is a wrapper around an ASCII
+ * An ExternalOneByteStringResource is a wrapper around an one-byte
* string buffer that resides outside V8's heap. Implement an
- * ExternalAsciiStringResource to manage the life cycle of the
+ * ExternalOneByteStringResource to manage the life cycle of the
* underlying buffer. Note that the string data must be immutable
- * and that the data must be strict (7-bit) ASCII, not Latin-1 or
- * UTF-8, which would require special treatment internally in the
- * engine and, in the case of UTF-8, do not allow efficient indexing.
- * Use String::New or convert to 16 bit data for non-ASCII.
+ * and that the data must be Latin-1 and not UTF-8, which would require
+ * special treatment internally in the engine and do not allow efficient
+ * indexing. Use String::New or convert to 16 bit data for non-Latin1.
*/
- class V8EXPORT ExternalAsciiStringResource
+ class V8_EXPORT ExternalOneByteStringResource
: public ExternalStringResourceBase {
public:
/**
* Override the destructor to manage the life cycle of the underlying
* buffer.
*/
- virtual ~ExternalAsciiStringResource() {}
+ virtual ~ExternalOneByteStringResource() {}
/** The string data from the underlying buffer.*/
virtual const char* data() const = 0;
- /** The number of ASCII characters in the string.*/
+ /** The number of Latin-1 characters in the string.*/
virtual size_t length() const = 0;
protected:
- ExternalAsciiStringResource() {}
+ ExternalOneByteStringResource() {}
};
+ typedef ExternalOneByteStringResource ExternalAsciiStringResource;
+
+ /**
+ * If the string is an external string, return the ExternalStringResourceBase
+ * regardless of the encoding, otherwise return NULL. The encoding of the
+ * string is returned in encoding_out.
+ */
+ V8_INLINE ExternalStringResourceBase* GetExternalStringResourceBase(
+ Encoding* encoding_out) const;
+
/**
* Get the ExternalStringResource for an external string. Returns
* NULL if IsExternal() doesn't return true.
*/
- inline ExternalStringResource* GetExternalStringResource() const;
+ V8_INLINE ExternalStringResource* GetExternalStringResource() const;
/**
- * Get the ExternalAsciiStringResource for an external ASCII string.
- * Returns NULL if IsExternalAscii() doesn't return true.
+ * Get the ExternalOneByteStringResource for an external one-byte string.
+ * Returns NULL if IsExternalOneByte() doesn't return true.
*/
- V8EXPORT const ExternalAsciiStringResource* GetExternalAsciiStringResource()
- const;
+ const ExternalOneByteStringResource* GetExternalOneByteStringResource() const;
- static inline String* Cast(v8::Value* obj);
+ // TODO(yangguo): deprecate this.
+ const ExternalAsciiStringResource* GetExternalAsciiStringResource() const {
+ return GetExternalOneByteStringResource();
+ }
- /**
- * Allocates a new string from either UTF-8 encoded or ASCII data.
- * The second parameter 'length' gives the buffer length.
- * If the data is UTF-8 encoded, the caller must
- * be careful to supply the length parameter.
- * If it is not given, the function calls
- * 'strlen' to determine the buffer length, it might be
- * wrong if 'data' contains a null character.
- */
- V8EXPORT static Local<String> New(const char* data, int length = -1);
+ V8_INLINE static String* Cast(v8::Value* obj);
- /** Allocates a new string from 16-bit character codes.*/
- V8EXPORT static Local<String> New(const uint16_t* data, int length = -1);
+ enum NewStringType {
+ kNormalString, kInternalizedString, kUndetectableString
+ };
- /** Creates a symbol. Returns one if it exists already.*/
- V8EXPORT static Local<String> NewSymbol(const char* data, int length = -1);
+ /** Allocates a new string from UTF-8 data.*/
+ static Local<String> NewFromUtf8(Isolate* isolate,
+ const char* data,
+ NewStringType type = kNormalString,
+ int length = -1);
+
+ /** Allocates a new string from Latin-1 data.*/
+ static Local<String> NewFromOneByte(
+ Isolate* isolate,
+ const uint8_t* data,
+ NewStringType type = kNormalString,
+ int length = -1);
+
+ /** Allocates a new string from UTF-16 data.*/
+ static Local<String> NewFromTwoByte(
+ Isolate* isolate,
+ const uint16_t* data,
+ NewStringType type = kNormalString,
+ int length = -1);
/**
* Creates a new string by concatenating the left and the right strings
* passed in as parameters.
*/
- V8EXPORT static Local<String> Concat(Handle<String> left,
- Handle<String> right);
+ static Local<String> Concat(Handle<String> left, Handle<String> right);
/**
* Creates a new external string using the data defined in the given
@@ -1216,7 +1985,8 @@
* should the underlying buffer be deallocated or modified except through the
* destructor of the external string resource.
*/
- V8EXPORT static Local<String> NewExternal(ExternalStringResource* resource);
+ static Local<String> NewExternal(Isolate* isolate,
+ ExternalStringResource* resource);
/**
* Associate an external string resource with this string by transforming it
@@ -1227,18 +1997,18 @@
* The string is not modified if the operation fails. See NewExternal for
* information on the lifetime of the resource.
*/
- V8EXPORT bool MakeExternal(ExternalStringResource* resource);
+ bool MakeExternal(ExternalStringResource* resource);
/**
- * Creates a new external string using the ASCII data defined in the given
+ * Creates a new external string using the one-byte data defined in the given
* resource. When the external string is no longer live on V8's heap the
* resource will be disposed by calling its Dispose method. The caller of
* this function should not otherwise delete or modify the resource. Neither
* should the underlying buffer be deallocated or modified except through the
* destructor of the external string resource.
*/
- V8EXPORT static Local<String> NewExternal(
- ExternalAsciiStringResource* resource);
+ static Local<String> NewExternal(Isolate* isolate,
+ ExternalOneByteStringResource* resource);
/**
* Associate an external string resource with this string by transforming it
@@ -1249,20 +2019,12 @@
* The string is not modified if the operation fails. See NewExternal for
* information on the lifetime of the resource.
*/
- V8EXPORT bool MakeExternal(ExternalAsciiStringResource* resource);
+ bool MakeExternal(ExternalOneByteStringResource* resource);
/**
* Returns true if this string can be made external.
*/
- V8EXPORT bool CanMakeExternal();
-
- /** Creates an undetectable string from the supplied ASCII or UTF-8 data.*/
- V8EXPORT static Local<String> NewUndetectable(const char* data,
- int length = -1);
-
- /** Creates an undetectable string from the supplied 16-bit character codes.*/
- V8EXPORT static Local<String> NewUndetectable(const uint16_t* data,
- int length = -1);
+ bool CanMakeExternal();
/**
* Converts an object to a UTF-8-encoded character array. Useful if
@@ -1271,7 +2033,7 @@
* then the length() method returns 0 and the * operator returns
* NULL.
*/
- class V8EXPORT Utf8Value {
+ class V8_EXPORT Utf8Value {
public:
explicit Utf8Value(Handle<v8::Value> obj);
~Utf8Value();
@@ -1288,35 +2050,12 @@
};
/**
- * Converts an object to an ASCII string.
- * Useful if you want to print the object.
- * If conversion to a string fails (eg. due to an exception in the toString()
- * method of the object) then the length() method returns 0 and the * operator
- * returns NULL.
- */
- class V8EXPORT AsciiValue {
- public:
- explicit AsciiValue(Handle<v8::Value> obj);
- ~AsciiValue();
- char* operator*() { return str_; }
- const char* operator*() const { return str_; }
- int length() const { return length_; }
- private:
- char* str_;
- int length_;
-
- // Disallow copying and assigning.
- AsciiValue(const AsciiValue&);
- void operator=(const AsciiValue&);
- };
-
- /**
* Converts an object to a two-byte string.
* If conversion to a string fails (eg. due to an exception in the toString()
* method of the object) then the length() method returns 0 and the * operator
* returns NULL.
*/
- class V8EXPORT Value {
+ class V8_EXPORT Value {
public:
explicit Value(Handle<v8::Value> obj);
~Value();
@@ -1333,59 +2072,126 @@
};
private:
- V8EXPORT void VerifyExternalStringResource(ExternalStringResource* val) const;
- V8EXPORT static void CheckCast(v8::Value* obj);
+ void VerifyExternalStringResourceBase(ExternalStringResourceBase* v,
+ Encoding encoding) const;
+ void VerifyExternalStringResource(ExternalStringResource* val) const;
+ static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A JavaScript symbol (ECMA-262 edition 6)
+ *
+ * This is an experimental feature. Use at your own risk.
+ */
+class V8_EXPORT Symbol : public Name {
+ public:
+ // Returns the print name string of the symbol, or undefined if none.
+ Local<Value> Name() const;
+
+ // Create a symbol. If name is not empty, it will be used as the description.
+ static Local<Symbol> New(
+ Isolate *isolate, Local<String> name = Local<String>());
+
+ // Access global symbol registry.
+ // Note that symbols created this way are never collected, so
+ // they should only be used for statically fixed properties.
+ // Also, there is only one global name space for the names used as keys.
+ // To minimize the potential for clashes, use qualified names as keys.
+ static Local<Symbol> For(Isolate *isolate, Local<String> name);
+
+ // Retrieve a global symbol. Similar to |For|, but using a separate
+ // registry that is not accessible by (and cannot clash with) JavaScript code.
+ static Local<Symbol> ForApi(Isolate *isolate, Local<String> name);
+
+ // Well-known symbols
+ static Local<Symbol> GetIterator(Isolate* isolate);
+ static Local<Symbol> GetUnscopables(Isolate* isolate);
+
+ V8_INLINE static Symbol* Cast(v8::Value* obj);
+
+ private:
+ Symbol();
+ static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A private symbol
+ *
+ * This is an experimental feature. Use at your own risk.
+ */
+class V8_EXPORT Private : public Data {
+ public:
+ // Returns the print name string of the private symbol, or undefined if none.
+ Local<Value> Name() const;
+
+ // Create a private symbol. If name is not empty, it will be the description.
+ static Local<Private> New(
+ Isolate *isolate, Local<String> name = Local<String>());
+
+ // Retrieve a global private symbol. If a symbol with this name has not
+ // been retrieved in the same isolate before, it is created.
+ // Note that private symbols created this way are never collected, so
+ // they should only be used for statically fixed properties.
+ // Also, there is only one global name space for the names used as keys.
+ // To minimize the potential for clashes, use qualified names as keys,
+ // e.g., "Class#property".
+ static Local<Private> ForApi(Isolate *isolate, Local<String> name);
+
+ private:
+ Private();
};
/**
* A JavaScript number value (ECMA-262, 4.3.20)
*/
-class Number : public Primitive {
+class V8_EXPORT Number : public Primitive {
public:
- V8EXPORT double Value() const;
- V8EXPORT static Local<Number> New(double value);
- static inline Number* Cast(v8::Value* obj);
+ double Value() const;
+ static Local<Number> New(Isolate* isolate, double value);
+ V8_INLINE static Number* Cast(v8::Value* obj);
private:
- V8EXPORT Number();
- V8EXPORT static void CheckCast(v8::Value* obj);
+ Number();
+ static void CheckCast(v8::Value* obj);
};
/**
* A JavaScript value representing a signed integer.
*/
-class Integer : public Number {
+class V8_EXPORT Integer : public Number {
public:
- V8EXPORT static Local<Integer> New(int32_t value);
- V8EXPORT static Local<Integer> NewFromUnsigned(uint32_t value);
- V8EXPORT int64_t Value() const;
- static inline Integer* Cast(v8::Value* obj);
+ static Local<Integer> New(Isolate* isolate, int32_t value);
+ static Local<Integer> NewFromUnsigned(Isolate* isolate, uint32_t value);
+ int64_t Value() const;
+ V8_INLINE static Integer* Cast(v8::Value* obj);
private:
- V8EXPORT Integer();
- V8EXPORT static void CheckCast(v8::Value* obj);
+ Integer();
+ static void CheckCast(v8::Value* obj);
};
/**
* A JavaScript value representing a 32-bit signed integer.
*/
-class Int32 : public Integer {
+class V8_EXPORT Int32 : public Integer {
public:
- V8EXPORT int32_t Value() const;
+ int32_t Value() const;
private:
- V8EXPORT Int32();
+ Int32();
};
/**
* A JavaScript value representing a 32-bit unsigned integer.
*/
-class Uint32 : public Integer {
+class V8_EXPORT Uint32 : public Integer {
public:
- V8EXPORT uint32_t Value() const;
+ uint32_t Value() const;
private:
- V8EXPORT Uint32();
+ Uint32();
};
@@ -1397,15 +2203,26 @@
};
enum ExternalArrayType {
- kExternalByteArray = 1,
- kExternalUnsignedByteArray,
- kExternalShortArray,
- kExternalUnsignedShortArray,
- kExternalIntArray,
- kExternalUnsignedIntArray,
- kExternalFloatArray,
- kExternalDoubleArray,
- kExternalPixelArray
+ kExternalInt8Array = 1,
+ kExternalUint8Array,
+ kExternalInt16Array,
+ kExternalUint16Array,
+ kExternalInt32Array,
+ kExternalUint32Array,
+ kExternalFloat32Array,
+ kExternalFloat64Array,
+ kExternalUint8ClampedArray,
+
+ // Legacy constant names
+ kExternalByteArray = kExternalInt8Array,
+ kExternalUnsignedByteArray = kExternalUint8Array,
+ kExternalShortArray = kExternalInt16Array,
+ kExternalUnsignedShortArray = kExternalUint16Array,
+ kExternalIntArray = kExternalInt32Array,
+ kExternalUnsignedIntArray = kExternalUint32Array,
+ kExternalFloatArray = kExternalFloat32Array,
+ kExternalDoubleArray = kExternalFloat64Array,
+ kExternalPixelArray = kExternalUint8ClampedArray
};
/**
@@ -1413,13 +2230,22 @@
* setting|getting a particular property. See Object and ObjectTemplate's
* method SetAccessor.
*/
-typedef Handle<Value> (*AccessorGetter)(Local<String> property,
- const AccessorInfo& info);
+typedef void (*AccessorGetterCallback)(
+ Local<String> property,
+ const PropertyCallbackInfo<Value>& info);
+typedef void (*AccessorNameGetterCallback)(
+ Local<Name> property,
+ const PropertyCallbackInfo<Value>& info);
-typedef void (*AccessorSetter)(Local<String> property,
- Local<Value> value,
- const AccessorInfo& info);
+typedef void (*AccessorSetterCallback)(
+ Local<String> property,
+ Local<Value> value,
+ const PropertyCallbackInfo<void>& info);
+typedef void (*AccessorNameSetterCallback)(
+ Local<Name> property,
+ Local<Value> value,
+ const PropertyCallbackInfo<void>& info);
/**
@@ -1429,11 +2255,7 @@
* accessors have an explicit access control parameter which specifies
* the kind of cross-context access that should be allowed.
*
- * Additionally, for security, accessors can prohibit overwriting by
- * accessors defined in JavaScript. For objects that have such
- * accessors either locally or in their prototype chain it is not
- * possible to overwrite the accessor by using __defineGetter__ or
- * __defineSetter__ from JavaScript code.
+ * TODO(dcarney): Remove PROHIBITS_OVERWRITING as it is now unused.
*/
enum AccessControl {
DEFAULT = 0,
@@ -1446,16 +2268,13 @@
/**
* A JavaScript object (ECMA-262, 4.3.3)
*/
-class Object : public Value {
+class V8_EXPORT Object : public Value {
public:
- V8EXPORT bool Set(Handle<Value> key,
- Handle<Value> value,
- PropertyAttribute attribs = None);
+ bool Set(Handle<Value> key, Handle<Value> value);
- V8EXPORT bool Set(uint32_t index,
- Handle<Value> value);
+ bool Set(uint32_t index, Handle<Value> value);
- // Sets a local property on this object bypassing interceptors and
+ // Sets an own property on this object bypassing interceptors and
// overriding accessors or read-only properties.
//
// Note that if the object has an interceptor the property will be set
@@ -1463,41 +2282,73 @@
// will only be returned if the interceptor doesn't return a value.
//
// Note also that this only works for named properties.
- V8EXPORT bool ForceSet(Handle<Value> key,
- Handle<Value> value,
- PropertyAttribute attribs = None);
+ bool ForceSet(Handle<Value> key,
+ Handle<Value> value,
+ PropertyAttribute attribs = None);
- V8EXPORT Local<Value> Get(Handle<Value> key);
+ Local<Value> Get(Handle<Value> key);
- V8EXPORT Local<Value> Get(uint32_t index);
+ Local<Value> Get(uint32_t index);
/**
* Gets the property attributes of a property which can be None or
* any combination of ReadOnly, DontEnum and DontDelete. Returns
* None when the property doesn't exist.
*/
- V8EXPORT PropertyAttribute GetPropertyAttributes(Handle<Value> key);
+ PropertyAttribute GetPropertyAttributes(Handle<Value> key);
- // TODO(1245389): Replace the type-specific versions of these
- // functions with generic ones that accept a Handle<Value> key.
- V8EXPORT bool Has(Handle<String> key);
+ /**
+ * Returns Object.getOwnPropertyDescriptor as per ES5 section 15.2.3.3.
+ */
+ Local<Value> GetOwnPropertyDescriptor(Local<String> key);
- V8EXPORT bool Delete(Handle<String> key);
+ bool Has(Handle<Value> key);
+
+ bool Delete(Handle<Value> key);
// Delete a property on this object bypassing interceptors and
// ignoring dont-delete attributes.
- V8EXPORT bool ForceDelete(Handle<Value> key);
+ bool ForceDelete(Handle<Value> key);
- V8EXPORT bool Has(uint32_t index);
+ bool Has(uint32_t index);
- V8EXPORT bool Delete(uint32_t index);
+ bool Delete(uint32_t index);
- V8EXPORT bool SetAccessor(Handle<String> name,
- AccessorGetter getter,
- AccessorSetter setter = 0,
- Handle<Value> data = Handle<Value>(),
- AccessControl settings = DEFAULT,
- PropertyAttribute attribute = None);
+ bool SetAccessor(Handle<String> name,
+ AccessorGetterCallback getter,
+ AccessorSetterCallback setter = 0,
+ Handle<Value> data = Handle<Value>(),
+ AccessControl settings = DEFAULT,
+ PropertyAttribute attribute = None);
+ bool SetAccessor(Handle<Name> name,
+ AccessorNameGetterCallback getter,
+ AccessorNameSetterCallback setter = 0,
+ Handle<Value> data = Handle<Value>(),
+ AccessControl settings = DEFAULT,
+ PropertyAttribute attribute = None);
+
+ // This function is not yet stable and should not be used at this time.
+ bool SetDeclaredAccessor(Local<Name> name,
+ Local<DeclaredAccessorDescriptor> descriptor,
+ PropertyAttribute attribute = None,
+ AccessControl settings = DEFAULT);
+
+ void SetAccessorProperty(Local<Name> name,
+ Local<Function> getter,
+ Handle<Function> setter = Handle<Function>(),
+ PropertyAttribute attribute = None,
+ AccessControl settings = DEFAULT);
+
+ /**
+ * Functionality for private properties.
+ * This is an experimental feature, use at your own risk.
+ * Note: Private properties are inherited. Do not rely on this, since it may
+ * change.
+ */
+ bool HasPrivate(Handle<Private> key);
+ bool SetPrivate(Handle<Private> key, Handle<Value> value);
+ bool DeletePrivate(Handle<Private> key);
+ Local<Value> GetPrivate(Handle<Private> key);
/**
* Returns an array containing the names of the enumerable properties
@@ -1505,93 +2356,113 @@
* array returned by this method contains the same values as would
* be enumerated by a for-in statement over this object.
*/
- V8EXPORT Local<Array> GetPropertyNames();
+ Local<Array> GetPropertyNames();
/**
* This function has the same functionality as GetPropertyNames but
* the returned array doesn't contain the names of properties from
* prototype objects.
*/
- V8EXPORT Local<Array> GetOwnPropertyNames();
+ Local<Array> GetOwnPropertyNames();
/**
* Get the prototype object. This does not skip objects marked to
* be skipped by __proto__ and it does not consult the security
* handler.
*/
- V8EXPORT Local<Value> GetPrototype();
+ Local<Value> GetPrototype();
/**
* Set the prototype object. This does not skip objects marked to
* be skipped by __proto__ and it does not consult the security
* handler.
*/
- V8EXPORT bool SetPrototype(Handle<Value> prototype);
+ bool SetPrototype(Handle<Value> prototype);
/**
* Finds an instance of the given function template in the prototype
* chain.
*/
- V8EXPORT Local<Object> FindInstanceInPrototypeChain(
- Handle<FunctionTemplate> tmpl);
+ Local<Object> FindInstanceInPrototypeChain(Handle<FunctionTemplate> tmpl);
/**
* Call builtin Object.prototype.toString on this object.
* This is different from Value::ToString() that may call
* user-defined toString function. This one does not.
*/
- V8EXPORT Local<String> ObjectProtoToString();
+ Local<String> ObjectProtoToString();
/**
* Returns the name of the function invoked as a constructor for this object.
*/
- V8EXPORT Local<String> GetConstructorName();
+ Local<String> GetConstructorName();
/** Gets the number of internal fields for this Object. */
- V8EXPORT int InternalFieldCount();
- /** Gets the value in an internal field. */
- inline Local<Value> GetInternalField(int index);
+ int InternalFieldCount();
+
+ /** Same as above, but works for Persistents */
+ V8_INLINE static int InternalFieldCount(
+ const PersistentBase<Object>& object) {
+ return object.val_->InternalFieldCount();
+ }
+
+ /** Gets the value from an internal field. */
+ V8_INLINE Local<Value> GetInternalField(int index);
+
/** Sets the value in an internal field. */
- V8EXPORT void SetInternalField(int index, Handle<Value> value);
+ void SetInternalField(int index, Handle<Value> value);
- /** Gets a native pointer from an internal field. */
- inline void* GetPointerFromInternalField(int index);
+ /**
+ * Gets a 2-byte-aligned native pointer from an internal field. This field
+ * must have been set by SetAlignedPointerInInternalField, everything else
+ * leads to undefined behavior.
+ */
+ V8_INLINE void* GetAlignedPointerFromInternalField(int index);
- /** Sets a native pointer in an internal field. */
- V8EXPORT void SetPointerInInternalField(int index, void* value);
+ /** Same as above, but works for Persistents */
+ V8_INLINE static void* GetAlignedPointerFromInternalField(
+ const PersistentBase<Object>& object, int index) {
+ return object.val_->GetAlignedPointerFromInternalField(index);
+ }
+
+ /**
+ * Sets a 2-byte-aligned native pointer in an internal field. To retrieve such
+ * a field, GetAlignedPointerFromInternalField must be used, everything else
+ * leads to undefined behavior.
+ */
+ void SetAlignedPointerInInternalField(int index, void* value);
// Testers for local properties.
- V8EXPORT bool HasOwnProperty(Handle<String> key);
- V8EXPORT bool HasRealNamedProperty(Handle<String> key);
- V8EXPORT bool HasRealIndexedProperty(uint32_t index);
- V8EXPORT bool HasRealNamedCallbackProperty(Handle<String> key);
+ bool HasOwnProperty(Handle<String> key);
+ bool HasRealNamedProperty(Handle<String> key);
+ bool HasRealIndexedProperty(uint32_t index);
+ bool HasRealNamedCallbackProperty(Handle<String> key);
/**
* If result.IsEmpty() no real property was located in the prototype chain.
* This means interceptors in the prototype chain are not called.
*/
- V8EXPORT Local<Value> GetRealNamedPropertyInPrototypeChain(
- Handle<String> key);
+ Local<Value> GetRealNamedPropertyInPrototypeChain(Handle<String> key);
/**
* If result.IsEmpty() no real property was located on the object or
* in the prototype chain.
* This means interceptors in the prototype chain are not called.
*/
- V8EXPORT Local<Value> GetRealNamedProperty(Handle<String> key);
+ Local<Value> GetRealNamedProperty(Handle<String> key);
/** Tests for a named lookup interceptor.*/
- V8EXPORT bool HasNamedLookupInterceptor();
+ bool HasNamedLookupInterceptor();
/** Tests for an index lookup interceptor.*/
- V8EXPORT bool HasIndexedLookupInterceptor();
+ bool HasIndexedLookupInterceptor();
/**
* Turns on access check on the object if the object is an instance of
* a template that has access check callbacks. If an object has no
* access check info, the object cannot be accessed by anyone.
*/
- V8EXPORT void TurnOnAccessCheck();
+ void TurnOnAccessCheck();
/**
* Returns the identity hash for this object. The current implementation
@@ -1600,7 +2471,7 @@
* The return value will never be 0. Also, it is not guaranteed to be
* unique.
*/
- V8EXPORT int GetIdentityHash();
+ int GetIdentityHash();
/**
* Access hidden properties on JavaScript objects. These properties are
@@ -1608,9 +2479,9 @@
* C++ API. Hidden properties introduced by V8 internally (for example the
* identity hash) are prefixed with "v8::".
*/
- V8EXPORT bool SetHiddenValue(Handle<String> key, Handle<Value> value);
- V8EXPORT Local<Value> GetHiddenValue(Handle<String> key);
- V8EXPORT bool DeleteHiddenValue(Handle<String> key);
+ bool SetHiddenValue(Handle<String> key, Handle<Value> value);
+ Local<Value> GetHiddenValue(Handle<String> key);
+ bool DeleteHiddenValue(Handle<String> key);
/**
* Returns true if this is an instance of an api function (one
@@ -1619,18 +2490,18 @@
* conservative and may return true for objects that haven't actually
* been modified.
*/
- V8EXPORT bool IsDirty();
+ bool IsDirty();
/**
* Clone this object with a fast but shallow copy. Values will point
* to the same values as the original object.
*/
- V8EXPORT Local<Object> Clone();
+ Local<Object> Clone();
/**
* Returns the context in which the object was created.
*/
- V8EXPORT Local<Context> CreationContext();
+ Local<Context> CreationContext();
/**
* Set the backing store of the indexed properties to be managed by the
@@ -1639,10 +2510,10 @@
* Note: The embedding program still owns the data and needs to ensure that
* the backing store is preserved while V8 has a reference.
*/
- V8EXPORT void SetIndexedPropertiesToPixelData(uint8_t* data, int length);
- V8EXPORT bool HasIndexedPropertiesInPixelData();
- V8EXPORT uint8_t* GetIndexedPropertiesPixelData();
- V8EXPORT int GetIndexedPropertiesPixelDataLength();
+ void SetIndexedPropertiesToPixelData(uint8_t* data, int length);
+ bool HasIndexedPropertiesInPixelData();
+ uint8_t* GetIndexedPropertiesPixelData();
+ int GetIndexedPropertiesPixelDataLength();
/**
* Set the backing store of the indexed properties to be managed by the
@@ -1651,93 +2522,208 @@
* Note: The embedding program still owns the data and needs to ensure that
* the backing store is preserved while V8 has a reference.
*/
- V8EXPORT void SetIndexedPropertiesToExternalArrayData(
- void* data,
- ExternalArrayType array_type,
- int number_of_elements);
- V8EXPORT bool HasIndexedPropertiesInExternalArrayData();
- V8EXPORT void* GetIndexedPropertiesExternalArrayData();
- V8EXPORT ExternalArrayType GetIndexedPropertiesExternalArrayDataType();
- V8EXPORT int GetIndexedPropertiesExternalArrayDataLength();
+ void SetIndexedPropertiesToExternalArrayData(void* data,
+ ExternalArrayType array_type,
+ int number_of_elements);
+ bool HasIndexedPropertiesInExternalArrayData();
+ void* GetIndexedPropertiesExternalArrayData();
+ ExternalArrayType GetIndexedPropertiesExternalArrayDataType();
+ int GetIndexedPropertiesExternalArrayDataLength();
/**
* Checks whether a callback is set by the
* ObjectTemplate::SetCallAsFunctionHandler method.
* When an Object is callable this method returns true.
*/
- V8EXPORT bool IsCallable();
+ bool IsCallable();
/**
* Call an Object as a function if a callback is set by the
* ObjectTemplate::SetCallAsFunctionHandler method.
*/
- V8EXPORT Local<Value> CallAsFunction(Handle<Object> recv,
- int argc,
- Handle<Value> argv[]);
+ Local<Value> CallAsFunction(Handle<Value> recv,
+ int argc,
+ Handle<Value> argv[]);
/**
* Call an Object as a constructor if a callback is set by the
* ObjectTemplate::SetCallAsFunctionHandler method.
* Note: This method behaves like the Function::NewInstance method.
*/
- V8EXPORT Local<Value> CallAsConstructor(int argc,
- Handle<Value> argv[]);
+ Local<Value> CallAsConstructor(int argc, Handle<Value> argv[]);
- V8EXPORT static Local<Object> New();
- static inline Object* Cast(Value* obj);
+ static Local<Object> New(Isolate* isolate);
+
+ V8_INLINE static Object* Cast(Value* obj);
private:
- V8EXPORT Object();
- V8EXPORT static void CheckCast(Value* obj);
- V8EXPORT Local<Value> CheckedGetInternalField(int index);
- V8EXPORT void* SlowGetPointerFromInternalField(int index);
-
- /**
- * If quick access to the internal field is possible this method
- * returns the value. Otherwise an empty handle is returned.
- */
- inline Local<Value> UncheckedGetInternalField(int index);
+ Object();
+ static void CheckCast(Value* obj);
+ Local<Value> SlowGetInternalField(int index);
+ void* SlowGetAlignedPointerFromInternalField(int index);
};
/**
* An instance of the built-in array constructor (ECMA-262, 15.4.2).
*/
-class Array : public Object {
+class V8_EXPORT Array : public Object {
public:
- V8EXPORT uint32_t Length() const;
+ uint32_t Length() const;
/**
* Clones an element at index |index|. Returns an empty
* handle if cloning fails (for any reason).
*/
- V8EXPORT Local<Object> CloneElementAt(uint32_t index);
+ Local<Object> CloneElementAt(uint32_t index);
/**
* Creates a JavaScript array with the given length. If the length
* is negative the returned array will have length 0.
*/
- V8EXPORT static Local<Array> New(int length = 0);
+ static Local<Array> New(Isolate* isolate, int length = 0);
- static inline Array* Cast(Value* obj);
+ V8_INLINE static Array* Cast(Value* obj);
private:
- V8EXPORT Array();
- V8EXPORT static void CheckCast(Value* obj);
+ Array();
+ static void CheckCast(Value* obj);
};
+template<typename T>
+class ReturnValue {
+ public:
+ template <class S> V8_INLINE ReturnValue(const ReturnValue<S>& that)
+ : value_(that.value_) {
+ TYPE_CHECK(T, S);
+ }
+ // Handle setters
+ template <typename S> V8_INLINE void Set(const Persistent<S>& handle);
+ template <typename S> V8_INLINE void Set(const Handle<S> handle);
+ // Fast primitive setters
+ V8_INLINE void Set(bool value);
+ V8_INLINE void Set(double i);
+ V8_INLINE void Set(int32_t i);
+ V8_INLINE void Set(uint32_t i);
+ // Fast JS primitive setters
+ V8_INLINE void SetNull();
+ V8_INLINE void SetUndefined();
+ V8_INLINE void SetEmptyString();
+ // Convenience getter for Isolate
+ V8_INLINE Isolate* GetIsolate();
+
+ // Pointer setter: Uncompilable to prevent inadvertent misuse.
+ template <typename S>
+ V8_INLINE void Set(S* whatever);
+
+ private:
+ template<class F> friend class ReturnValue;
+ template<class F> friend class FunctionCallbackInfo;
+ template<class F> friend class PropertyCallbackInfo;
+ template<class F, class G, class H> friend class PersistentValueMap;
+ V8_INLINE void SetInternal(internal::Object* value) { *value_ = value; }
+ V8_INLINE internal::Object* GetDefaultValue();
+ V8_INLINE explicit ReturnValue(internal::Object** slot);
+ internal::Object** value_;
+};
+
+
+/**
+ * The argument information given to function call callbacks. This
+ * class provides access to information about the context of the call,
+ * including the receiver, the number and values of arguments, and
+ * the holder of the function.
+ */
+template<typename T>
+class FunctionCallbackInfo {
+ public:
+ V8_INLINE int Length() const;
+ V8_INLINE Local<Value> operator[](int i) const;
+ V8_INLINE Local<Function> Callee() const;
+ V8_INLINE Local<Object> This() const;
+ V8_INLINE Local<Object> Holder() const;
+ V8_INLINE bool IsConstructCall() const;
+ V8_INLINE Local<Value> Data() const;
+ V8_INLINE Isolate* GetIsolate() const;
+ V8_INLINE ReturnValue<T> GetReturnValue() const;
+ // This shouldn't be public, but the arm compiler needs it.
+ static const int kArgsLength = 7;
+
+ protected:
+ friend class internal::FunctionCallbackArguments;
+ friend class internal::CustomArguments<FunctionCallbackInfo>;
+ static const int kHolderIndex = 0;
+ static const int kIsolateIndex = 1;
+ static const int kReturnValueDefaultValueIndex = 2;
+ static const int kReturnValueIndex = 3;
+ static const int kDataIndex = 4;
+ static const int kCalleeIndex = 5;
+ static const int kContextSaveIndex = 6;
+
+ V8_INLINE FunctionCallbackInfo(internal::Object** implicit_args,
+ internal::Object** values,
+ int length,
+ bool is_construct_call);
+ internal::Object** implicit_args_;
+ internal::Object** values_;
+ int length_;
+ bool is_construct_call_;
+};
+
+
+/**
+ * The information passed to a property callback about the context
+ * of the property access.
+ */
+template<typename T>
+class PropertyCallbackInfo {
+ public:
+ V8_INLINE Isolate* GetIsolate() const;
+ V8_INLINE Local<Value> Data() const;
+ V8_INLINE Local<Object> This() const;
+ V8_INLINE Local<Object> Holder() const;
+ V8_INLINE ReturnValue<T> GetReturnValue() const;
+ // This shouldn't be public, but the arm compiler needs it.
+ static const int kArgsLength = 6;
+
+ protected:
+ friend class MacroAssembler;
+ friend class internal::PropertyCallbackArguments;
+ friend class internal::CustomArguments<PropertyCallbackInfo>;
+ static const int kHolderIndex = 0;
+ static const int kIsolateIndex = 1;
+ static const int kReturnValueDefaultValueIndex = 2;
+ static const int kReturnValueIndex = 3;
+ static const int kDataIndex = 4;
+ static const int kThisIndex = 5;
+
+ V8_INLINE PropertyCallbackInfo(internal::Object** args) : args_(args) {}
+ internal::Object** args_;
+};
+
+
+typedef void (*FunctionCallback)(const FunctionCallbackInfo<Value>& info);
+
+
/**
* A JavaScript function object (ECMA-262, 15.3).
*/
-class Function : public Object {
+class V8_EXPORT Function : public Object {
public:
- V8EXPORT Local<Object> NewInstance() const;
- V8EXPORT Local<Object> NewInstance(int argc, Handle<Value> argv[]) const;
- V8EXPORT Local<Value> Call(Handle<Object> recv,
- int argc,
- Handle<Value> argv[]);
- V8EXPORT void SetName(Handle<String> name);
- V8EXPORT Handle<Value> GetName() const;
+ /**
+ * Create a function in the current execution context
+ * for a given FunctionCallback.
+ */
+ static Local<Function> New(Isolate* isolate,
+ FunctionCallback callback,
+ Local<Value> data = Local<Value>(),
+ int length = 0);
+
+ Local<Object> NewInstance() const;
+ Local<Object> NewInstance(int argc, Handle<Value> argv[]) const;
+ Local<Value> Call(Handle<Value> recv, int argc, Handle<Value> argv[]);
+ void SetName(Handle<String> name);
+ Handle<Value> GetName() const;
/**
* Name inferred from variable or property assignment of this function.
@@ -1745,43 +2731,455 @@
* in an OO style, where many functions are anonymous but are assigned
* to object properties.
*/
- V8EXPORT Handle<Value> GetInferredName() const;
+ Handle<Value> GetInferredName() const;
+
+ /**
+ * User-defined name assigned to the "displayName" property of this function.
+ * Used to facilitate debugging and profiling of JavaScript code.
+ */
+ Handle<Value> GetDisplayName() const;
/**
* Returns zero based line number of function body and
* kLineOffsetNotFound if no information available.
*/
- V8EXPORT int GetScriptLineNumber() const;
+ int GetScriptLineNumber() const;
/**
* Returns zero based column number of function body and
* kLineOffsetNotFound if no information available.
*/
- V8EXPORT int GetScriptColumnNumber() const;
- V8EXPORT Handle<Value> GetScriptId() const;
- V8EXPORT ScriptOrigin GetScriptOrigin() const;
- static inline Function* Cast(Value* obj);
- V8EXPORT static const int kLineOffsetNotFound;
+ int GetScriptColumnNumber() const;
+
+ /**
+ * Tells whether this function is builtin.
+ */
+ bool IsBuiltin() const;
+
+ /**
+ * Returns scriptId.
+ */
+ int ScriptId() const;
+
+ /**
+ * Returns the original function if this function is bound, else returns
+ * v8::Undefined.
+ */
+ Local<Value> GetBoundFunction() const;
+
+ ScriptOrigin GetScriptOrigin() const;
+ V8_INLINE static Function* Cast(Value* obj);
+ static const int kLineOffsetNotFound;
private:
- V8EXPORT Function();
- V8EXPORT static void CheckCast(Value* obj);
+ Function();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of the built-in Promise constructor (ES6 draft).
+ * This API is experimental. Only works with --harmony flag.
+ */
+class V8_EXPORT Promise : public Object {
+ public:
+ class V8_EXPORT Resolver : public Object {
+ public:
+ /**
+ * Create a new resolver, along with an associated promise in pending state.
+ */
+ static Local<Resolver> New(Isolate* isolate);
+
+ /**
+ * Extract the associated promise.
+ */
+ Local<Promise> GetPromise();
+
+ /**
+ * Resolve/reject the associated promise with a given value.
+ * Ignored if the promise is no longer pending.
+ */
+ void Resolve(Handle<Value> value);
+ void Reject(Handle<Value> value);
+
+ V8_INLINE static Resolver* Cast(Value* obj);
+
+ private:
+ Resolver();
+ static void CheckCast(Value* obj);
+ };
+
+ /**
+ * Register a resolution/rejection handler with a promise.
+ * The handler is given the respective resolution/rejection value as
+ * an argument. If the promise is already resolved/rejected, the handler is
+ * invoked at the end of turn.
+ */
+ Local<Promise> Chain(Handle<Function> handler);
+ Local<Promise> Catch(Handle<Function> handler);
+ Local<Promise> Then(Handle<Function> handler);
+
+ V8_INLINE static Promise* Cast(Value* obj);
+
+ private:
+ Promise();
+ static void CheckCast(Value* obj);
+};
+
+
+#ifndef V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT
+// The number of required internal fields can be defined by embedder.
+#define V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT 2
+#endif
+
+/**
+ * An instance of the built-in ArrayBuffer constructor (ES6 draft 15.13.5).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT ArrayBuffer : public Object {
+ public:
+ /**
+ * Allocator that V8 uses to allocate |ArrayBuffer|'s memory.
+ * The allocator is a global V8 setting. It should be set with
+ * V8::SetArrayBufferAllocator prior to creation of a first ArrayBuffer.
+ *
+ * This API is experimental and may change significantly.
+ */
+ class V8_EXPORT Allocator { // NOLINT
+ public:
+ virtual ~Allocator() {}
+
+ /**
+ * Allocate |length| bytes. Return NULL if allocation is not successful.
+ * Memory should be initialized to zeroes.
+ */
+ virtual void* Allocate(size_t length) = 0;
+
+ /**
+ * Allocate |length| bytes. Return NULL if allocation is not successful.
+ * Memory does not have to be initialized.
+ */
+ virtual void* AllocateUninitialized(size_t length) = 0;
+ /**
+ * Free the memory block of size |length|, pointed to by |data|.
+ * That memory is guaranteed to be previously allocated by |Allocate|.
+ */
+ virtual void Free(void* data, size_t length) = 0;
+ };
+
+ /**
+ * The contents of an |ArrayBuffer|. Externalization of |ArrayBuffer|
+ * returns an instance of this class, populated, with a pointer to data
+ * and byte length.
+ *
+ * The Data pointer of ArrayBuffer::Contents is always allocated with
+ * Allocator::Allocate that is set with V8::SetArrayBufferAllocator.
+ *
+ * This API is experimental and may change significantly.
+ */
+ class V8_EXPORT Contents { // NOLINT
+ public:
+ Contents() : data_(NULL), byte_length_(0) {}
+
+ void* Data() const { return data_; }
+ size_t ByteLength() const { return byte_length_; }
+
+ private:
+ void* data_;
+ size_t byte_length_;
+
+ friend class ArrayBuffer;
+ };
+
+
+ /**
+ * Data length in bytes.
+ */
+ size_t ByteLength() const;
+
+ /**
+ * Create a new ArrayBuffer. Allocate |byte_length| bytes.
+ * Allocated memory will be owned by a created ArrayBuffer and
+ * will be deallocated when it is garbage-collected,
+ * unless the object is externalized.
+ */
+ static Local<ArrayBuffer> New(Isolate* isolate, size_t byte_length);
+
+ /**
+ * Create a new ArrayBuffer over an existing memory block.
+ * The created array buffer is immediately in externalized state.
+ * The memory block will not be reclaimed when a created ArrayBuffer
+ * is garbage-collected.
+ */
+ static Local<ArrayBuffer> New(Isolate* isolate, void* data,
+ size_t byte_length);
+
+ /**
+ * Returns true if ArrayBuffer is extrenalized, that is, does not
+ * own its memory block.
+ */
+ bool IsExternal() const;
+
+ /**
+ * Neuters this ArrayBuffer and all its views (typed arrays).
+ * Neutering sets the byte length of the buffer and all typed arrays to zero,
+ * preventing JavaScript from ever accessing underlying backing store.
+ * ArrayBuffer should have been externalized.
+ */
+ void Neuter();
+
+ /**
+ * Make this ArrayBuffer external. The pointer to underlying memory block
+ * and byte length are returned as |Contents| structure. After ArrayBuffer
+ * had been etxrenalized, it does no longer owns the memory block. The caller
+ * should take steps to free memory when it is no longer needed.
+ *
+ * The memory block is guaranteed to be allocated with |Allocator::Allocate|
+ * that has been set with V8::SetArrayBufferAllocator.
+ */
+ Contents Externalize();
+
+ V8_INLINE static ArrayBuffer* Cast(Value* obj);
+
+ static const int kInternalFieldCount = V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT;
+
+ private:
+ ArrayBuffer();
+ static void CheckCast(Value* obj);
+};
+
+
+#ifndef V8_ARRAY_BUFFER_VIEW_INTERNAL_FIELD_COUNT
+// The number of required internal fields can be defined by embedder.
+#define V8_ARRAY_BUFFER_VIEW_INTERNAL_FIELD_COUNT 2
+#endif
+
+
+/**
+ * A base class for an instance of one of "views" over ArrayBuffer,
+ * including TypedArrays and DataView (ES6 draft 15.13).
+ *
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT ArrayBufferView : public Object {
+ public:
+ /**
+ * Returns underlying ArrayBuffer.
+ */
+ Local<ArrayBuffer> Buffer();
+ /**
+ * Byte offset in |Buffer|.
+ */
+ size_t ByteOffset();
+ /**
+ * Size of a view in bytes.
+ */
+ size_t ByteLength();
+
+ V8_INLINE static ArrayBufferView* Cast(Value* obj);
+
+ static const int kInternalFieldCount =
+ V8_ARRAY_BUFFER_VIEW_INTERNAL_FIELD_COUNT;
+
+ private:
+ ArrayBufferView();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * A base class for an instance of TypedArray series of constructors
+ * (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT TypedArray : public ArrayBufferView {
+ public:
+ /**
+ * Number of elements in this typed array
+ * (e.g. for Int16Array, |ByteLength|/2).
+ */
+ size_t Length();
+
+ V8_INLINE static TypedArray* Cast(Value* obj);
+
+ private:
+ TypedArray();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Uint8Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Uint8Array : public TypedArray {
+ public:
+ static Local<Uint8Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Uint8Array* Cast(Value* obj);
+
+ private:
+ Uint8Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Uint8ClampedArray constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Uint8ClampedArray : public TypedArray {
+ public:
+ static Local<Uint8ClampedArray> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Uint8ClampedArray* Cast(Value* obj);
+
+ private:
+ Uint8ClampedArray();
+ static void CheckCast(Value* obj);
+};
+
+/**
+ * An instance of Int8Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Int8Array : public TypedArray {
+ public:
+ static Local<Int8Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Int8Array* Cast(Value* obj);
+
+ private:
+ Int8Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Uint16Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Uint16Array : public TypedArray {
+ public:
+ static Local<Uint16Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Uint16Array* Cast(Value* obj);
+
+ private:
+ Uint16Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Int16Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Int16Array : public TypedArray {
+ public:
+ static Local<Int16Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Int16Array* Cast(Value* obj);
+
+ private:
+ Int16Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Uint32Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Uint32Array : public TypedArray {
+ public:
+ static Local<Uint32Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Uint32Array* Cast(Value* obj);
+
+ private:
+ Uint32Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Int32Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Int32Array : public TypedArray {
+ public:
+ static Local<Int32Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Int32Array* Cast(Value* obj);
+
+ private:
+ Int32Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Float32Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Float32Array : public TypedArray {
+ public:
+ static Local<Float32Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Float32Array* Cast(Value* obj);
+
+ private:
+ Float32Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of Float64Array constructor (ES6 draft 15.13.6).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT Float64Array : public TypedArray {
+ public:
+ static Local<Float64Array> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static Float64Array* Cast(Value* obj);
+
+ private:
+ Float64Array();
+ static void CheckCast(Value* obj);
+};
+
+
+/**
+ * An instance of DataView constructor (ES6 draft 15.13.7).
+ * This API is experimental and may change significantly.
+ */
+class V8_EXPORT DataView : public ArrayBufferView {
+ public:
+ static Local<DataView> New(Handle<ArrayBuffer> array_buffer,
+ size_t byte_offset, size_t length);
+ V8_INLINE static DataView* Cast(Value* obj);
+
+ private:
+ DataView();
+ static void CheckCast(Value* obj);
};
/**
* An instance of the built-in Date constructor (ECMA-262, 15.9).
*/
-class Date : public Object {
+class V8_EXPORT Date : public Object {
public:
- V8EXPORT static Local<Value> New(double time);
+ static Local<Value> New(Isolate* isolate, double time);
/**
* A specialization of Value::NumberValue that is more efficient
* because we know the structure of this object.
*/
- V8EXPORT double NumberValue() const;
+ double ValueOf() const;
- static inline Date* Cast(v8::Value* obj);
+ V8_INLINE static Date* Cast(v8::Value* obj);
/**
* Notification that the embedder has changed the time zone,
@@ -1795,74 +3193,83 @@
* This API should not be called more than needed as it will
* negatively impact the performance of date operations.
*/
- V8EXPORT static void DateTimeConfigurationChangeNotification();
+ static void DateTimeConfigurationChangeNotification(Isolate* isolate);
private:
- V8EXPORT static void CheckCast(v8::Value* obj);
+ static void CheckCast(v8::Value* obj);
};
/**
* A Number object (ECMA-262, 4.3.21).
*/
-class NumberObject : public Object {
+class V8_EXPORT NumberObject : public Object {
public:
- V8EXPORT static Local<Value> New(double value);
+ static Local<Value> New(Isolate* isolate, double value);
- /**
- * Returns the Number held by the object.
- */
- V8EXPORT double NumberValue() const;
+ double ValueOf() const;
- static inline NumberObject* Cast(v8::Value* obj);
+ V8_INLINE static NumberObject* Cast(v8::Value* obj);
private:
- V8EXPORT static void CheckCast(v8::Value* obj);
+ static void CheckCast(v8::Value* obj);
};
/**
* A Boolean object (ECMA-262, 4.3.15).
*/
-class BooleanObject : public Object {
+class V8_EXPORT BooleanObject : public Object {
public:
- V8EXPORT static Local<Value> New(bool value);
+ static Local<Value> New(bool value);
- /**
- * Returns the Boolean held by the object.
- */
- V8EXPORT bool BooleanValue() const;
+ bool ValueOf() const;
- static inline BooleanObject* Cast(v8::Value* obj);
+ V8_INLINE static BooleanObject* Cast(v8::Value* obj);
private:
- V8EXPORT static void CheckCast(v8::Value* obj);
+ static void CheckCast(v8::Value* obj);
};
/**
* A String object (ECMA-262, 4.3.18).
*/
-class StringObject : public Object {
+class V8_EXPORT StringObject : public Object {
public:
- V8EXPORT static Local<Value> New(Handle<String> value);
+ static Local<Value> New(Handle<String> value);
- /**
- * Returns the String held by the object.
- */
- V8EXPORT Local<String> StringValue() const;
+ Local<String> ValueOf() const;
- static inline StringObject* Cast(v8::Value* obj);
+ V8_INLINE static StringObject* Cast(v8::Value* obj);
private:
- V8EXPORT static void CheckCast(v8::Value* obj);
+ static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A Symbol object (ECMA-262 edition 6).
+ *
+ * This is an experimental feature. Use at your own risk.
+ */
+class V8_EXPORT SymbolObject : public Object {
+ public:
+ static Local<Value> New(Isolate* isolate, Handle<Symbol> value);
+
+ Local<Symbol> ValueOf() const;
+
+ V8_INLINE static SymbolObject* Cast(v8::Value* obj);
+
+ private:
+ static void CheckCast(v8::Value* obj);
};
/**
* An instance of the built-in RegExp constructor (ECMA-262, 15.10).
*/
-class RegExp : public Object {
+class V8_EXPORT RegExp : public Object {
public:
/**
* Regular expression flag bits. They can be or'ed to enable a set
@@ -1885,51 +3292,37 @@
* static_cast<RegExp::Flags>(kGlobal | kMultiline))
* is equivalent to evaluating "/foo/gm".
*/
- V8EXPORT static Local<RegExp> New(Handle<String> pattern,
- Flags flags);
+ static Local<RegExp> New(Handle<String> pattern, Flags flags);
/**
* Returns the value of the source property: a string representing
* the regular expression.
*/
- V8EXPORT Local<String> GetSource() const;
+ Local<String> GetSource() const;
/**
* Returns the flags bit field.
*/
- V8EXPORT Flags GetFlags() const;
+ Flags GetFlags() const;
- static inline RegExp* Cast(v8::Value* obj);
+ V8_INLINE static RegExp* Cast(v8::Value* obj);
private:
- V8EXPORT static void CheckCast(v8::Value* obj);
+ static void CheckCast(v8::Value* obj);
};
/**
- * A JavaScript value that wraps a C++ void*. This type of value is
- * mainly used to associate C++ data structures with JavaScript
- * objects.
- *
- * The Wrap function V8 will return the most optimal Value object wrapping the
- * C++ void*. The type of the value is not guaranteed to be an External object
- * and no assumptions about its type should be made. To access the wrapped
- * value Unwrap should be used, all other operations on that object will lead
- * to unpredictable results.
+ * A JavaScript value that wraps a C++ void*. This type of value is mainly used
+ * to associate C++ data structures with JavaScript objects.
*/
-class External : public Value {
+class V8_EXPORT External : public Value {
public:
- V8EXPORT static Local<Value> Wrap(void* data);
- static inline void* Unwrap(Handle<Value> obj);
-
- V8EXPORT static Local<External> New(void* value);
- static inline External* Cast(Value* obj);
- V8EXPORT void* Value() const;
+ static Local<External> New(Isolate* isolate, void* value);
+ V8_INLINE static External* Cast(Value* obj);
+ void* Value() const;
private:
- V8EXPORT External();
- V8EXPORT static void CheckCast(v8::Value* obj);
- static inline void* QuickUnwrap(Handle<v8::Value> obj);
- V8EXPORT static void* FullUnwrap(Handle<v8::Value> obj);
+ static void CheckCast(v8::Value* obj);
};
@@ -1939,12 +3332,74 @@
/**
* The superclass of object and function templates.
*/
-class V8EXPORT Template : public Data {
+class V8_EXPORT Template : public Data {
public:
/** Adds a property to each instance created by this template.*/
- void Set(Handle<String> name, Handle<Data> value,
+ void Set(Handle<Name> name, Handle<Data> value,
PropertyAttribute attributes = None);
- inline void Set(const char* name, Handle<Data> value);
+ V8_INLINE void Set(Isolate* isolate, const char* name, Handle<Data> value);
+
+ void SetAccessorProperty(
+ Local<Name> name,
+ Local<FunctionTemplate> getter = Local<FunctionTemplate>(),
+ Local<FunctionTemplate> setter = Local<FunctionTemplate>(),
+ PropertyAttribute attribute = None,
+ AccessControl settings = DEFAULT);
+
+ /**
+ * Whenever the property with the given name is accessed on objects
+ * created from this Template the getter and setter callbacks
+ * are called instead of getting and setting the property directly
+ * on the JavaScript object.
+ *
+ * \param name The name of the property for which an accessor is added.
+ * \param getter The callback to invoke when getting the property.
+ * \param setter The callback to invoke when setting the property.
+ * \param data A piece of data that will be passed to the getter and setter
+ * callbacks whenever they are invoked.
+ * \param settings Access control settings for the accessor. This is a bit
+ * field consisting of one of more of
+ * DEFAULT = 0, ALL_CAN_READ = 1, or ALL_CAN_WRITE = 2.
+ * The default is to not allow cross-context access.
+ * ALL_CAN_READ means that all cross-context reads are allowed.
+ * ALL_CAN_WRITE means that all cross-context writes are allowed.
+ * The combination ALL_CAN_READ | ALL_CAN_WRITE can be used to allow all
+ * cross-context access.
+ * \param attribute The attributes of the property for which an accessor
+ * is added.
+ * \param signature The signature describes valid receivers for the accessor
+ * and is used to perform implicit instance checks against them. If the
+ * receiver is incompatible (i.e. is not an instance of the constructor as
+ * defined by FunctionTemplate::HasInstance()), an implicit TypeError is
+ * thrown and no callback is invoked.
+ */
+ void SetNativeDataProperty(Local<String> name,
+ AccessorGetterCallback getter,
+ AccessorSetterCallback setter = 0,
+ // TODO(dcarney): gcc can't handle Local below
+ Handle<Value> data = Handle<Value>(),
+ PropertyAttribute attribute = None,
+ Local<AccessorSignature> signature =
+ Local<AccessorSignature>(),
+ AccessControl settings = DEFAULT);
+ void SetNativeDataProperty(Local<Name> name,
+ AccessorNameGetterCallback getter,
+ AccessorNameSetterCallback setter = 0,
+ // TODO(dcarney): gcc can't handle Local below
+ Handle<Value> data = Handle<Value>(),
+ PropertyAttribute attribute = None,
+ Local<AccessorSignature> signature =
+ Local<AccessorSignature>(),
+ AccessControl settings = DEFAULT);
+
+ // This function is not yet stable and should not be used at this time.
+ bool SetDeclaredAccessor(Local<Name> name,
+ Local<DeclaredAccessorDescriptor> descriptor,
+ PropertyAttribute attribute = None,
+ Local<AccessorSignature> signature =
+ Local<AccessorSignature>(),
+ AccessControl settings = DEFAULT);
+
private:
Template();
@@ -1954,78 +3409,32 @@
/**
- * The argument information given to function call callbacks. This
- * class provides access to information about the context of the call,
- * including the receiver, the number and values of arguments, and
- * the holder of the function.
- */
-class Arguments {
- public:
- inline int Length() const;
- inline Local<Value> operator[](int i) const;
- inline Local<Function> Callee() const;
- inline Local<Object> This() const;
- inline Local<Object> Holder() const;
- inline bool IsConstructCall() const;
- inline Local<Value> Data() const;
- private:
- static const int kDataIndex = 0;
- static const int kCalleeIndex = -1;
- static const int kHolderIndex = -2;
-
- friend class ImplementationUtilities;
- inline Arguments(internal::Object** implicit_args,
- internal::Object** values,
- int length,
- bool is_construct_call);
- internal::Object** implicit_args_;
- internal::Object** values_;
- int length_;
- bool is_construct_call_;
-};
-
-
-/**
- * The information passed to an accessor callback about the context
- * of the property access.
- */
-class V8EXPORT AccessorInfo {
- public:
- inline AccessorInfo(internal::Object** args)
- : args_(args) { }
- inline Local<Value> Data() const;
- inline Local<Object> This() const;
- inline Local<Object> Holder() const;
- private:
- internal::Object** args_;
-};
-
-
-typedef Handle<Value> (*InvocationCallback)(const Arguments& args);
-
-/**
* NamedProperty[Getter|Setter] are used as interceptors on object.
* See ObjectTemplate::SetNamedPropertyHandler.
*/
-typedef Handle<Value> (*NamedPropertyGetter)(Local<String> property,
- const AccessorInfo& info);
+typedef void (*NamedPropertyGetterCallback)(
+ Local<String> property,
+ const PropertyCallbackInfo<Value>& info);
/**
* Returns the value if the setter intercepts the request.
* Otherwise, returns an empty handle.
*/
-typedef Handle<Value> (*NamedPropertySetter)(Local<String> property,
- Local<Value> value,
- const AccessorInfo& info);
+typedef void (*NamedPropertySetterCallback)(
+ Local<String> property,
+ Local<Value> value,
+ const PropertyCallbackInfo<Value>& info);
+
/**
* Returns a non-empty handle if the interceptor intercepts the request.
* The result is an integer encoding property attributes (like v8::None,
* v8::DontEnum, etc.)
*/
-typedef Handle<Integer> (*NamedPropertyQuery)(Local<String> property,
- const AccessorInfo& info);
+typedef void (*NamedPropertyQueryCallback)(
+ Local<String> property,
+ const PropertyCallbackInfo<Integer>& info);
/**
@@ -2033,53 +3442,63 @@
* The return value is true if the property could be deleted and false
* otherwise.
*/
-typedef Handle<Boolean> (*NamedPropertyDeleter)(Local<String> property,
- const AccessorInfo& info);
+typedef void (*NamedPropertyDeleterCallback)(
+ Local<String> property,
+ const PropertyCallbackInfo<Boolean>& info);
+
/**
* Returns an array containing the names of the properties the named
* property getter intercepts.
*/
-typedef Handle<Array> (*NamedPropertyEnumerator)(const AccessorInfo& info);
+typedef void (*NamedPropertyEnumeratorCallback)(
+ const PropertyCallbackInfo<Array>& info);
/**
* Returns the value of the property if the getter intercepts the
* request. Otherwise, returns an empty handle.
*/
-typedef Handle<Value> (*IndexedPropertyGetter)(uint32_t index,
- const AccessorInfo& info);
+typedef void (*IndexedPropertyGetterCallback)(
+ uint32_t index,
+ const PropertyCallbackInfo<Value>& info);
/**
* Returns the value if the setter intercepts the request.
* Otherwise, returns an empty handle.
*/
-typedef Handle<Value> (*IndexedPropertySetter)(uint32_t index,
- Local<Value> value,
- const AccessorInfo& info);
+typedef void (*IndexedPropertySetterCallback)(
+ uint32_t index,
+ Local<Value> value,
+ const PropertyCallbackInfo<Value>& info);
/**
* Returns a non-empty handle if the interceptor intercepts the request.
* The result is an integer encoding property attributes.
*/
-typedef Handle<Integer> (*IndexedPropertyQuery)(uint32_t index,
- const AccessorInfo& info);
+typedef void (*IndexedPropertyQueryCallback)(
+ uint32_t index,
+ const PropertyCallbackInfo<Integer>& info);
+
/**
* Returns a non-empty handle if the deleter intercepts the request.
* The return value is true if the property could be deleted and false
* otherwise.
*/
-typedef Handle<Boolean> (*IndexedPropertyDeleter)(uint32_t index,
- const AccessorInfo& info);
+typedef void (*IndexedPropertyDeleterCallback)(
+ uint32_t index,
+ const PropertyCallbackInfo<Boolean>& info);
+
/**
* Returns an array containing the indices of the properties the
* indexed property getter intercepts.
*/
-typedef Handle<Array> (*IndexedPropertyEnumerator)(const AccessorInfo& info);
+typedef void (*IndexedPropertyEnumeratorCallback)(
+ const PropertyCallbackInfo<Array>& info);
/**
@@ -2206,13 +3625,16 @@
* child_instance.instance_property == 3;
* \endcode
*/
-class V8EXPORT FunctionTemplate : public Template {
+class V8_EXPORT FunctionTemplate : public Template {
public:
/** Creates a function template.*/
static Local<FunctionTemplate> New(
- InvocationCallback callback = 0,
+ Isolate* isolate,
+ FunctionCallback callback = 0,
Handle<Value> data = Handle<Value>(),
- Handle<Signature> signature = Handle<Signature>());
+ Handle<Signature> signature = Handle<Signature>(),
+ int length = 0);
+
/** Returns the unique function instance in the current execution context.*/
Local<Function> GetFunction();
@@ -2221,9 +3643,12 @@
* callback is called whenever the function created from this
* FunctionTemplate is called.
*/
- void SetCallHandler(InvocationCallback callback,
+ void SetCallHandler(FunctionCallback callback,
Handle<Value> data = Handle<Value>());
+ /** Set the predefined length property for the FunctionTemplate. */
+ void SetLength(int length);
+
/** Get the InstanceTemplate. */
Local<ObjectTemplate> InstanceTemplate();
@@ -2236,7 +3661,6 @@
*/
Local<ObjectTemplate> PrototypeTemplate();
-
/**
* Set the class name of the FunctionTemplate. This is used for
* printing objects created with the function created from the
@@ -2265,6 +3689,12 @@
void ReadOnlyPrototype();
/**
+ * Removes the prototype property from functions created from this
+ * FunctionTemplate.
+ */
+ void RemovePrototype();
+
+ /**
* Returns true if the given object is an instance of this function
* template.
*/
@@ -2272,27 +3702,6 @@
private:
FunctionTemplate();
- void AddInstancePropertyAccessor(Handle<String> name,
- AccessorGetter getter,
- AccessorSetter setter,
- Handle<Value> data,
- AccessControl settings,
- PropertyAttribute attributes);
- void SetNamedInstancePropertyHandler(NamedPropertyGetter getter,
- NamedPropertySetter setter,
- NamedPropertyQuery query,
- NamedPropertyDeleter remover,
- NamedPropertyEnumerator enumerator,
- Handle<Value> data);
- void SetIndexedInstancePropertyHandler(IndexedPropertyGetter getter,
- IndexedPropertySetter setter,
- IndexedPropertyQuery query,
- IndexedPropertyDeleter remover,
- IndexedPropertyEnumerator enumerator,
- Handle<Value> data);
- void SetInstanceCallAsFunctionHandler(InvocationCallback callback,
- Handle<Value> data);
-
friend class Context;
friend class ObjectTemplate;
};
@@ -2304,9 +3713,11 @@
* Properties added to an ObjectTemplate are added to each object
* created from the ObjectTemplate.
*/
-class V8EXPORT ObjectTemplate : public Template {
+class V8_EXPORT ObjectTemplate : public Template {
public:
/** Creates an ObjectTemplate. */
+ static Local<ObjectTemplate> New(Isolate* isolate);
+ // Will be deprecated soon.
static Local<ObjectTemplate> New();
/** Creates a new instance of this template.*/
@@ -2335,19 +3746,34 @@
* cross-context access.
* \param attribute The attributes of the property for which an accessor
* is added.
+ * \param signature The signature describes valid receivers for the accessor
+ * and is used to perform implicit instance checks against them. If the
+ * receiver is incompatible (i.e. is not an instance of the constructor as
+ * defined by FunctionTemplate::HasInstance()), an implicit TypeError is
+ * thrown and no callback is invoked.
*/
void SetAccessor(Handle<String> name,
- AccessorGetter getter,
- AccessorSetter setter = 0,
+ AccessorGetterCallback getter,
+ AccessorSetterCallback setter = 0,
Handle<Value> data = Handle<Value>(),
AccessControl settings = DEFAULT,
- PropertyAttribute attribute = None);
+ PropertyAttribute attribute = None,
+ Handle<AccessorSignature> signature =
+ Handle<AccessorSignature>());
+ void SetAccessor(Handle<Name> name,
+ AccessorNameGetterCallback getter,
+ AccessorNameSetterCallback setter = 0,
+ Handle<Value> data = Handle<Value>(),
+ AccessControl settings = DEFAULT,
+ PropertyAttribute attribute = None,
+ Handle<AccessorSignature> signature =
+ Handle<AccessorSignature>());
/**
* Sets a named property handler on the object template.
*
- * Whenever a named property is accessed on objects created from
- * this object template, the provided callback is invoked instead of
+ * Whenever a property whose name is a string is accessed on objects created
+ * from this object template, the provided callback is invoked instead of
* accessing the property directly on the JavaScript object.
*
* \param getter The callback to invoke when getting a property.
@@ -2360,12 +3786,13 @@
* \param data A piece of data that will be passed to the callbacks
* whenever they are invoked.
*/
- void SetNamedPropertyHandler(NamedPropertyGetter getter,
- NamedPropertySetter setter = 0,
- NamedPropertyQuery query = 0,
- NamedPropertyDeleter deleter = 0,
- NamedPropertyEnumerator enumerator = 0,
- Handle<Value> data = Handle<Value>());
+ void SetNamedPropertyHandler(
+ NamedPropertyGetterCallback getter,
+ NamedPropertySetterCallback setter = 0,
+ NamedPropertyQueryCallback query = 0,
+ NamedPropertyDeleterCallback deleter = 0,
+ NamedPropertyEnumeratorCallback enumerator = 0,
+ Handle<Value> data = Handle<Value>());
/**
* Sets an indexed property handler on the object template.
@@ -2383,12 +3810,13 @@
* \param data A piece of data that will be passed to the callbacks
* whenever they are invoked.
*/
- void SetIndexedPropertyHandler(IndexedPropertyGetter getter,
- IndexedPropertySetter setter = 0,
- IndexedPropertyQuery query = 0,
- IndexedPropertyDeleter deleter = 0,
- IndexedPropertyEnumerator enumerator = 0,
- Handle<Value> data = Handle<Value>());
+ void SetIndexedPropertyHandler(
+ IndexedPropertyGetterCallback getter,
+ IndexedPropertySetterCallback setter = 0,
+ IndexedPropertyQueryCallback query = 0,
+ IndexedPropertyDeleterCallback deleter = 0,
+ IndexedPropertyEnumeratorCallback enumerator = 0,
+ Handle<Value> data = Handle<Value>());
/**
* Sets the callback to be used when calling instances created from
@@ -2396,7 +3824,7 @@
* behave like normal JavaScript objects that cannot be called as a
* function.
*/
- void SetCallAsFunctionHandler(InvocationCallback callback,
+ void SetCallAsFunctionHandler(FunctionCallback callback,
Handle<Value> data = Handle<Value>());
/**
@@ -2439,31 +3867,104 @@
private:
ObjectTemplate();
- static Local<ObjectTemplate> New(Handle<FunctionTemplate> constructor);
+ static Local<ObjectTemplate> New(internal::Isolate* isolate,
+ Handle<FunctionTemplate> constructor);
friend class FunctionTemplate;
};
/**
- * A Signature specifies which receivers and arguments a function can
- * legally be called with.
+ * A Signature specifies which receivers and arguments are valid
+ * parameters to a function.
*/
-class V8EXPORT Signature : public Data {
+class V8_EXPORT Signature : public Data {
public:
- static Local<Signature> New(Handle<FunctionTemplate> receiver =
+ static Local<Signature> New(Isolate* isolate,
+ Handle<FunctionTemplate> receiver =
Handle<FunctionTemplate>(),
int argc = 0,
Handle<FunctionTemplate> argv[] = 0);
+
private:
Signature();
};
/**
+ * An AccessorSignature specifies which receivers are valid parameters
+ * to an accessor callback.
+ */
+class V8_EXPORT AccessorSignature : public Data {
+ public:
+ static Local<AccessorSignature> New(Isolate* isolate,
+ Handle<FunctionTemplate> receiver =
+ Handle<FunctionTemplate>());
+
+ private:
+ AccessorSignature();
+};
+
+
+class V8_EXPORT DeclaredAccessorDescriptor : public Data {
+ private:
+ DeclaredAccessorDescriptor();
+};
+
+
+class V8_EXPORT ObjectOperationDescriptor : public Data {
+ public:
+ // This function is not yet stable and should not be used at this time.
+ static Local<RawOperationDescriptor> NewInternalFieldDereference(
+ Isolate* isolate,
+ int internal_field);
+ private:
+ ObjectOperationDescriptor();
+};
+
+
+enum DeclaredAccessorDescriptorDataType {
+ kDescriptorBoolType,
+ kDescriptorInt8Type, kDescriptorUint8Type,
+ kDescriptorInt16Type, kDescriptorUint16Type,
+ kDescriptorInt32Type, kDescriptorUint32Type,
+ kDescriptorFloatType, kDescriptorDoubleType
+};
+
+
+class V8_EXPORT RawOperationDescriptor : public Data {
+ public:
+ Local<DeclaredAccessorDescriptor> NewHandleDereference(Isolate* isolate);
+ Local<RawOperationDescriptor> NewRawDereference(Isolate* isolate);
+ Local<RawOperationDescriptor> NewRawShift(Isolate* isolate,
+ int16_t byte_offset);
+ Local<DeclaredAccessorDescriptor> NewPointerCompare(Isolate* isolate,
+ void* compare_value);
+ Local<DeclaredAccessorDescriptor> NewPrimitiveValue(
+ Isolate* isolate,
+ DeclaredAccessorDescriptorDataType data_type,
+ uint8_t bool_offset = 0);
+ Local<DeclaredAccessorDescriptor> NewBitmaskCompare8(Isolate* isolate,
+ uint8_t bitmask,
+ uint8_t compare_value);
+ Local<DeclaredAccessorDescriptor> NewBitmaskCompare16(
+ Isolate* isolate,
+ uint16_t bitmask,
+ uint16_t compare_value);
+ Local<DeclaredAccessorDescriptor> NewBitmaskCompare32(
+ Isolate* isolate,
+ uint32_t bitmask,
+ uint32_t compare_value);
+
+ private:
+ RawOperationDescriptor();
+};
+
+
+/**
* A utility for determining the type of objects based on the template
* they were constructed from.
*/
-class V8EXPORT TypeSwitch : public Data {
+class V8_EXPORT TypeSwitch : public Data {
public:
static Local<TypeSwitch> New(Handle<FunctionTemplate> type);
static Local<TypeSwitch> New(int argc, Handle<FunctionTemplate> types[]);
@@ -2475,11 +3976,11 @@
// --- Extensions ---
-class V8EXPORT ExternalAsciiStringResourceImpl
- : public String::ExternalAsciiStringResource {
+class V8_EXPORT ExternalOneByteStringResourceImpl
+ : public String::ExternalOneByteStringResource {
public:
- ExternalAsciiStringResourceImpl() : data_(0), length_(0) {}
- ExternalAsciiStringResourceImpl(const char* data, size_t length)
+ ExternalOneByteStringResourceImpl() : data_(0), length_(0) {}
+ ExternalOneByteStringResourceImpl(const char* data, size_t length)
: data_(data), length_(length) {}
const char* data() const { return data_; }
size_t length() const { return length_; }
@@ -2492,7 +3993,7 @@
/**
* Ignore
*/
-class V8EXPORT Extension { // NOLINT
+class V8_EXPORT Extension { // NOLINT
public:
// Note that the strings passed into this constructor must live as long
// as the Extension itself.
@@ -2502,14 +4003,14 @@
const char** deps = 0,
int source_length = -1);
virtual ~Extension() { }
- virtual v8::Handle<v8::FunctionTemplate>
- GetNativeFunction(v8::Handle<v8::String> name) {
+ virtual v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate(
+ v8::Isolate* isolate, v8::Handle<v8::String> name) {
return v8::Handle<v8::FunctionTemplate>();
}
const char* name() const { return name_; }
size_t source_length() const { return source_length_; }
- const String::ExternalAsciiStringResource* source() const {
+ const String::ExternalOneByteStringResource* source() const {
return &source_; }
int dependency_count() { return dep_count_; }
const char** dependencies() { return deps_; }
@@ -2519,7 +4020,7 @@
private:
const char* name_;
size_t source_length_; // expected to initialize before source_
- ExternalAsciiStringResourceImpl source_;
+ ExternalOneByteStringResourceImpl source_;
int dep_count_;
const char** deps_;
bool auto_enable_;
@@ -2530,27 +4031,15 @@
};
-void V8EXPORT RegisterExtension(Extension* extension);
-
-
-/**
- * Ignore
- */
-class V8EXPORT DeclareExtension {
- public:
- inline DeclareExtension(Extension* extension) {
- RegisterExtension(extension);
- }
-};
+void V8_EXPORT RegisterExtension(Extension* extension);
// --- Statics ---
-
-Handle<Primitive> V8EXPORT Undefined();
-Handle<Primitive> V8EXPORT Null();
-Handle<Boolean> V8EXPORT True();
-Handle<Boolean> V8EXPORT False();
+V8_INLINE Handle<Primitive> Undefined(Isolate* isolate);
+V8_INLINE Handle<Primitive> Null(Isolate* isolate);
+V8_INLINE Handle<Boolean> True(Isolate* isolate);
+V8_INLINE Handle<Boolean> False(Isolate* isolate);
/**
@@ -2562,51 +4051,71 @@
* setting the stack limit and you must set a non-default stack limit separately
* for each thread.
*/
-class V8EXPORT ResourceConstraints {
+class V8_EXPORT ResourceConstraints {
public:
ResourceConstraints();
- int max_young_space_size() const { return max_young_space_size_; }
- void set_max_young_space_size(int value) { max_young_space_size_ = value; }
+
+ /**
+ * Configures the constraints with reasonable default values based on the
+ * capabilities of the current device the VM is running on.
+ *
+ * \param physical_memory The total amount of physical memory on the current
+ * device, in bytes.
+ * \param virtual_memory_limit The amount of virtual memory on the current
+ * device, in bytes, or zero, if there is no limit.
+ * \param number_of_processors The number of CPUs available on the current
+ * device.
+ */
+ void ConfigureDefaults(uint64_t physical_memory,
+ uint64_t virtual_memory_limit,
+ uint32_t number_of_processors);
+
+ int max_semi_space_size() const { return max_semi_space_size_; }
+ void set_max_semi_space_size(int value) { max_semi_space_size_ = value; }
int max_old_space_size() const { return max_old_space_size_; }
void set_max_old_space_size(int value) { max_old_space_size_ = value; }
- int max_executable_size() { return max_executable_size_; }
+ int max_executable_size() const { return max_executable_size_; }
void set_max_executable_size(int value) { max_executable_size_ = value; }
uint32_t* stack_limit() const { return stack_limit_; }
// Sets an address beyond which the VM's stack may not grow.
void set_stack_limit(uint32_t* value) { stack_limit_ = value; }
+ int max_available_threads() const { return max_available_threads_; }
+ // Set the number of threads available to V8, assuming at least 1.
+ void set_max_available_threads(int value) {
+ max_available_threads_ = value;
+ }
+ size_t code_range_size() const { return code_range_size_; }
+ void set_code_range_size(size_t value) {
+ code_range_size_ = value;
+ }
+
private:
- int max_young_space_size_;
+ int max_semi_space_size_;
int max_old_space_size_;
int max_executable_size_;
uint32_t* stack_limit_;
+ int max_available_threads_;
+ size_t code_range_size_;
};
-bool V8EXPORT SetResourceConstraints(ResourceConstraints* constraints);
-
-
// --- Exceptions ---
typedef void (*FatalErrorCallback)(const char* location, const char* message);
-typedef void (*MessageCallback)(Handle<Message> message, Handle<Value> data);
+typedef void (*MessageCallback)(Handle<Message> message, Handle<Value> error);
+// --- Tracing ---
-/**
- * Schedules an exception to be thrown when returning to JavaScript. When an
- * exception has been scheduled it is illegal to invoke any JavaScript
- * operation; the caller must return immediately and only after the exception
- * has been handled does it become legal to invoke JavaScript operations.
- */
-Handle<Value> V8EXPORT ThrowException(Handle<Value> exception);
+typedef void (*LogEventCallback)(const char* name, int event);
/**
* Create new error objects by calling the corresponding error object
* constructor with the message.
*/
-class V8EXPORT Exception {
+class V8_EXPORT Exception {
public:
static Local<Value> RangeError(Handle<String> message);
static Local<Value> ReferenceError(Handle<String> message);
@@ -2654,6 +4163,9 @@
// --- Leave Script Callback ---
typedef void (*CallCompletedCallback)();
+// --- Microtask Callback ---
+typedef void (*MicrotaskCallback)(void* data);
+
// --- Failed Access Check Callback ---
typedef void (*FailedAccessCheckCallback)(Local<Object> target,
AccessType type,
@@ -2684,13 +4196,15 @@
enum GCCallbackFlags {
kNoGCCallbackFlags = 0,
- kGCCallbackFlagCompacted = 1 << 0
+ kGCCallbackFlagCompacted = 1 << 0,
+ kGCCallbackFlagConstructRetainedObjectInfos = 1 << 1,
+ kGCCallbackFlagForced = 1 << 2
};
typedef void (*GCPrologueCallback)(GCType type, GCCallbackFlags flags);
typedef void (*GCEpilogueCallback)(GCType type, GCCallbackFlags flags);
-typedef void (*GCCallback)();
+typedef void (*InterruptCallback)(Isolate* isolate, void* data);
/**
@@ -2699,49 +4213,177 @@
* Instances of this class can be passed to v8::V8::HeapStatistics to
* get heap statistics from V8.
*/
-class V8EXPORT HeapStatistics {
+class V8_EXPORT HeapStatistics {
public:
HeapStatistics();
size_t total_heap_size() { return total_heap_size_; }
size_t total_heap_size_executable() { return total_heap_size_executable_; }
+ size_t total_physical_size() { return total_physical_size_; }
size_t used_heap_size() { return used_heap_size_; }
size_t heap_size_limit() { return heap_size_limit_; }
private:
- void set_total_heap_size(size_t size) { total_heap_size_ = size; }
- void set_total_heap_size_executable(size_t size) {
- total_heap_size_executable_ = size;
- }
- void set_used_heap_size(size_t size) { used_heap_size_ = size; }
- void set_heap_size_limit(size_t size) { heap_size_limit_ = size; }
-
size_t total_heap_size_;
size_t total_heap_size_executable_;
+ size_t total_physical_size_;
size_t used_heap_size_;
size_t heap_size_limit_;
friend class V8;
+ friend class Isolate;
};
class RetainedObjectInfo;
+
/**
- * Isolate represents an isolated instance of the V8 engine. V8
- * isolates have completely separate states. Objects from one isolate
- * must not be used in other isolates. When V8 is initialized a
- * default isolate is implicitly created and entered. The embedder
- * can create additional isolates and use them in parallel in multiple
- * threads. An isolate can be entered by at most one thread at any
- * given time. The Locker/Unlocker API must be used to synchronize.
+ * FunctionEntryHook is the type of the profile entry hook called at entry to
+ * any generated function when function-level profiling is enabled.
+ *
+ * \param function the address of the function that's being entered.
+ * \param return_addr_location points to a location on stack where the machine
+ * return address resides. This can be used to identify the caller of
+ * \p function, and/or modified to divert execution when \p function exits.
+ *
+ * \note the entry hook must not cause garbage collection.
*/
-class V8EXPORT Isolate {
+typedef void (*FunctionEntryHook)(uintptr_t function,
+ uintptr_t return_addr_location);
+
+/**
+ * A JIT code event is issued each time code is added, moved or removed.
+ *
+ * \note removal events are not currently issued.
+ */
+struct JitCodeEvent {
+ enum EventType {
+ CODE_ADDED,
+ CODE_MOVED,
+ CODE_REMOVED,
+ CODE_ADD_LINE_POS_INFO,
+ CODE_START_LINE_INFO_RECORDING,
+ CODE_END_LINE_INFO_RECORDING
+ };
+ // Definition of the code position type. The "POSITION" type means the place
+ // in the source code which are of interest when making stack traces to
+ // pin-point the source location of a stack frame as close as possible.
+ // The "STATEMENT_POSITION" means the place at the beginning of each
+ // statement, and is used to indicate possible break locations.
+ enum PositionType { POSITION, STATEMENT_POSITION };
+
+ // Type of event.
+ EventType type;
+ // Start of the instructions.
+ void* code_start;
+ // Size of the instructions.
+ size_t code_len;
+ // Script info for CODE_ADDED event.
+ Handle<UnboundScript> script;
+ // User-defined data for *_LINE_INFO_* event. It's used to hold the source
+ // code line information which is returned from the
+ // CODE_START_LINE_INFO_RECORDING event. And it's passed to subsequent
+ // CODE_ADD_LINE_POS_INFO and CODE_END_LINE_INFO_RECORDING events.
+ void* user_data;
+
+ struct name_t {
+ // Name of the object associated with the code, note that the string is not
+ // zero-terminated.
+ const char* str;
+ // Number of chars in str.
+ size_t len;
+ };
+
+ struct line_info_t {
+ // PC offset
+ size_t offset;
+ // Code postion
+ size_t pos;
+ // The position type.
+ PositionType position_type;
+ };
+
+ union {
+ // Only valid for CODE_ADDED.
+ struct name_t name;
+
+ // Only valid for CODE_ADD_LINE_POS_INFO
+ struct line_info_t line_info;
+
+ // New location of instructions. Only valid for CODE_MOVED.
+ void* new_code_start;
+ };
+};
+
+/**
+ * Option flags passed to the SetJitCodeEventHandler function.
+ */
+enum JitCodeEventOptions {
+ kJitCodeEventDefault = 0,
+ // Generate callbacks for already existent code.
+ kJitCodeEventEnumExisting = 1
+};
+
+
+/**
+ * Callback function passed to SetJitCodeEventHandler.
+ *
+ * \param event code add, move or removal event.
+ */
+typedef void (*JitCodeEventHandler)(const JitCodeEvent* event);
+
+
+/**
+ * Isolate represents an isolated instance of the V8 engine. V8 isolates have
+ * completely separate states. Objects from one isolate must not be used in
+ * other isolates. The embedder can create multiple isolates and use them in
+ * parallel in multiple threads. An isolate can be entered by at most one
+ * thread at any given time. The Locker/Unlocker API must be used to
+ * synchronize.
+ */
+class V8_EXPORT Isolate {
public:
/**
+ * Initial configuration parameters for a new Isolate.
+ */
+ struct CreateParams {
+ CreateParams()
+ : entry_hook(NULL),
+ code_event_handler(NULL),
+ enable_serializer(false) {}
+
+ /**
+ * The optional entry_hook allows the host application to provide the
+ * address of a function that's invoked on entry to every V8-generated
+ * function. Note that entry_hook is invoked at the very start of each
+ * generated function. Furthermore, if an entry_hook is given, V8 will
+ * always run without a context snapshot.
+ */
+ FunctionEntryHook entry_hook;
+
+ /**
+ * Allows the host application to provide the address of a function that is
+ * notified each time code is added, moved or removed.
+ */
+ JitCodeEventHandler code_event_handler;
+
+ /**
+ * ResourceConstraints to use for the new Isolate.
+ */
+ ResourceConstraints constraints;
+
+ /**
+ * This flag currently renders the Isolate unusable.
+ */
+ bool enable_serializer;
+ };
+
+
+ /**
* Stack-allocated class which sets the isolate for all operations
* executed within a local scope.
*/
- class V8EXPORT Scope {
+ class V8_EXPORT Scope {
public:
explicit Scope(Isolate* isolate) : isolate_(isolate) {
isolate->Enter();
@@ -2757,14 +4399,97 @@
Scope& operator=(const Scope&);
};
+
+ /**
+ * Assert that no Javascript code is invoked.
+ */
+ class V8_EXPORT DisallowJavascriptExecutionScope {
+ public:
+ enum OnFailure { CRASH_ON_FAILURE, THROW_ON_FAILURE };
+
+ DisallowJavascriptExecutionScope(Isolate* isolate, OnFailure on_failure);
+ ~DisallowJavascriptExecutionScope();
+
+ private:
+ bool on_failure_;
+ void* internal_;
+
+ // Prevent copying of Scope objects.
+ DisallowJavascriptExecutionScope(const DisallowJavascriptExecutionScope&);
+ DisallowJavascriptExecutionScope& operator=(
+ const DisallowJavascriptExecutionScope&);
+ };
+
+
+ /**
+ * Introduce exception to DisallowJavascriptExecutionScope.
+ */
+ class V8_EXPORT AllowJavascriptExecutionScope {
+ public:
+ explicit AllowJavascriptExecutionScope(Isolate* isolate);
+ ~AllowJavascriptExecutionScope();
+
+ private:
+ void* internal_throws_;
+ void* internal_assert_;
+
+ // Prevent copying of Scope objects.
+ AllowJavascriptExecutionScope(const AllowJavascriptExecutionScope&);
+ AllowJavascriptExecutionScope& operator=(
+ const AllowJavascriptExecutionScope&);
+ };
+
+ /**
+ * Do not run microtasks while this scope is active, even if microtasks are
+ * automatically executed otherwise.
+ */
+ class V8_EXPORT SuppressMicrotaskExecutionScope {
+ public:
+ explicit SuppressMicrotaskExecutionScope(Isolate* isolate);
+ ~SuppressMicrotaskExecutionScope();
+
+ private:
+ internal::Isolate* isolate_;
+
+ // Prevent copying of Scope objects.
+ SuppressMicrotaskExecutionScope(const SuppressMicrotaskExecutionScope&);
+ SuppressMicrotaskExecutionScope& operator=(
+ const SuppressMicrotaskExecutionScope&);
+ };
+
+ /**
+ * Types of garbage collections that can be requested via
+ * RequestGarbageCollectionForTesting.
+ */
+ enum GarbageCollectionType {
+ kFullGarbageCollection,
+ kMinorGarbageCollection
+ };
+
+ /**
+ * Features reported via the SetUseCounterCallback callback. Do not chang
+ * assigned numbers of existing items; add new features to the end of this
+ * list.
+ */
+ enum UseCounterFeature {
+ kUseAsm = 0,
+ kUseCounterFeatureCount // This enum value must be last.
+ };
+
+ typedef void (*UseCounterCallback)(Isolate* isolate,
+ UseCounterFeature feature);
+
+
/**
* Creates a new isolate. Does not change the currently entered
* isolate.
*
* When an isolate is no longer used its resources should be freed
* by calling Dispose(). Using the delete operator is not allowed.
+ *
+ * V8::Initialize() must have run prior to this.
*/
- static Isolate* New();
+ static Isolate* New(const CreateParams& params = CreateParams());
/**
* Returns the entered isolate for the current thread or NULL in
@@ -2800,27 +4525,333 @@
void Dispose();
/**
- * Associate embedder-specific data with the isolate
+ * Associate embedder-specific data with the isolate. |slot| has to be
+ * between 0 and GetNumberOfDataSlots() - 1.
*/
- void SetData(void* data);
+ V8_INLINE void SetData(uint32_t slot, void* data);
/**
- * Retrive embedder-specific data from the isolate.
- * Returns NULL if SetData has never been called.
+ * Retrieve embedder-specific data from the isolate.
+ * Returns NULL if SetData has never been called for the given |slot|.
*/
- void* GetData();
+ V8_INLINE void* GetData(uint32_t slot);
+
+ /**
+ * Returns the maximum number of available embedder data slots. Valid slots
+ * are in the range of 0 - GetNumberOfDataSlots() - 1.
+ */
+ V8_INLINE static uint32_t GetNumberOfDataSlots();
+
+ /**
+ * Get statistics about the heap memory usage.
+ */
+ void GetHeapStatistics(HeapStatistics* heap_statistics);
+
+ /**
+ * Adjusts the amount of registered external memory. Used to give V8 an
+ * indication of the amount of externally allocated memory that is kept alive
+ * by JavaScript objects. V8 uses this to decide when to perform global
+ * garbage collections. Registering externally allocated memory will trigger
+ * global garbage collections more often than it would otherwise in an attempt
+ * to garbage collect the JavaScript objects that keep the externally
+ * allocated memory alive.
+ *
+ * \param change_in_bytes the change in externally allocated memory that is
+ * kept alive by JavaScript objects.
+ * \returns the adjusted value.
+ */
+ V8_INLINE int64_t
+ AdjustAmountOfExternalAllocatedMemory(int64_t change_in_bytes);
+
+ /**
+ * Returns heap profiler for this isolate. Will return NULL until the isolate
+ * is initialized.
+ */
+ HeapProfiler* GetHeapProfiler();
+
+ /**
+ * Returns CPU profiler for this isolate. Will return NULL unless the isolate
+ * is initialized. It is the embedder's responsibility to stop all CPU
+ * profiling activities if it has started any.
+ */
+ CpuProfiler* GetCpuProfiler();
+
+ /** Returns true if this isolate has a current context. */
+ bool InContext();
+
+ /** Returns the context that is on the top of the stack. */
+ Local<Context> GetCurrentContext();
+
+ /**
+ * Returns the context of the calling JavaScript code. That is the
+ * context of the top-most JavaScript frame. If there are no
+ * JavaScript frames an empty handle is returned.
+ */
+ Local<Context> GetCallingContext();
+
+ /** Returns the last entered context. */
+ Local<Context> GetEnteredContext();
+
+ /**
+ * Schedules an exception to be thrown when returning to JavaScript. When an
+ * exception has been scheduled it is illegal to invoke any JavaScript
+ * operation; the caller must return immediately and only after the exception
+ * has been handled does it become legal to invoke JavaScript operations.
+ */
+ Local<Value> ThrowException(Local<Value> exception);
+
+ /**
+ * Allows the host application to group objects together. If one
+ * object in the group is alive, all objects in the group are alive.
+ * After each garbage collection, object groups are removed. It is
+ * intended to be used in the before-garbage-collection callback
+ * function, for instance to simulate DOM tree connections among JS
+ * wrapper objects. Object groups for all dependent handles need to
+ * be provided for kGCTypeMarkSweepCompact collections, for all other
+ * garbage collection types it is sufficient to provide object groups
+ * for partially dependent handles only.
+ */
+ template<typename T> void SetObjectGroupId(const Persistent<T>& object,
+ UniqueId id);
+
+ /**
+ * Allows the host application to declare implicit references from an object
+ * group to an object. If the objects of the object group are alive, the child
+ * object is alive too. After each garbage collection, all implicit references
+ * are removed. It is intended to be used in the before-garbage-collection
+ * callback function.
+ */
+ template<typename T> void SetReferenceFromGroup(UniqueId id,
+ const Persistent<T>& child);
+
+ /**
+ * Allows the host application to declare implicit references from an object
+ * to another object. If the parent object is alive, the child object is alive
+ * too. After each garbage collection, all implicit references are removed. It
+ * is intended to be used in the before-garbage-collection callback function.
+ */
+ template<typename T, typename S>
+ void SetReference(const Persistent<T>& parent, const Persistent<S>& child);
+
+ typedef void (*GCPrologueCallback)(Isolate* isolate,
+ GCType type,
+ GCCallbackFlags flags);
+ typedef void (*GCEpilogueCallback)(Isolate* isolate,
+ GCType type,
+ GCCallbackFlags flags);
+
+ /**
+ * Enables the host application to receive a notification before a
+ * garbage collection. Allocations are allowed in the callback function,
+ * but the callback is not re-entrant: if the allocation inside it will
+ * trigger the garbage collection, the callback won't be called again.
+ * It is possible to specify the GCType filter for your callback. But it is
+ * not possible to register the same callback function two times with
+ * different GCType filters.
+ */
+ void AddGCPrologueCallback(
+ GCPrologueCallback callback, GCType gc_type_filter = kGCTypeAll);
+
+ /**
+ * This function removes callback which was installed by
+ * AddGCPrologueCallback function.
+ */
+ void RemoveGCPrologueCallback(GCPrologueCallback callback);
+
+ /**
+ * Enables the host application to receive a notification after a
+ * garbage collection. Allocations are allowed in the callback function,
+ * but the callback is not re-entrant: if the allocation inside it will
+ * trigger the garbage collection, the callback won't be called again.
+ * It is possible to specify the GCType filter for your callback. But it is
+ * not possible to register the same callback function two times with
+ * different GCType filters.
+ */
+ void AddGCEpilogueCallback(
+ GCEpilogueCallback callback, GCType gc_type_filter = kGCTypeAll);
+
+ /**
+ * This function removes callback which was installed by
+ * AddGCEpilogueCallback function.
+ */
+ void RemoveGCEpilogueCallback(GCEpilogueCallback callback);
+
+ /**
+ * Request V8 to interrupt long running JavaScript code and invoke
+ * the given |callback| passing the given |data| to it. After |callback|
+ * returns control will be returned to the JavaScript code.
+ * At any given moment V8 can remember only a single callback for the very
+ * last interrupt request.
+ * Can be called from another thread without acquiring a |Locker|.
+ * Registered |callback| must not reenter interrupted Isolate.
+ */
+ void RequestInterrupt(InterruptCallback callback, void* data);
+
+ /**
+ * Clear interrupt request created by |RequestInterrupt|.
+ * Can be called from another thread without acquiring a |Locker|.
+ */
+ void ClearInterrupt();
+
+ /**
+ * Request garbage collection in this Isolate. It is only valid to call this
+ * function if --expose_gc was specified.
+ *
+ * This should only be used for testing purposes and not to enforce a garbage
+ * collection schedule. It has strong negative impact on the garbage
+ * collection performance. Use IdleNotification() or LowMemoryNotification()
+ * instead to influence the garbage collection schedule.
+ */
+ void RequestGarbageCollectionForTesting(GarbageCollectionType type);
+
+ /**
+ * Set the callback to invoke for logging event.
+ */
+ void SetEventLogger(LogEventCallback that);
+
+ /**
+ * Adds a callback to notify the host application when a script finished
+ * running. If a script re-enters the runtime during executing, the
+ * CallCompletedCallback is only invoked when the outer-most script
+ * execution ends. Executing scripts inside the callback do not trigger
+ * further callbacks.
+ */
+ void AddCallCompletedCallback(CallCompletedCallback callback);
+
+ /**
+ * Removes callback that was installed by AddCallCompletedCallback.
+ */
+ void RemoveCallCompletedCallback(CallCompletedCallback callback);
+
+ /**
+ * Experimental: Runs the Microtask Work Queue until empty
+ * Any exceptions thrown by microtask callbacks are swallowed.
+ */
+ void RunMicrotasks();
+
+ /**
+ * Experimental: Enqueues the callback to the Microtask Work Queue
+ */
+ void EnqueueMicrotask(Handle<Function> microtask);
+
+ /**
+ * Experimental: Enqueues the callback to the Microtask Work Queue
+ */
+ void EnqueueMicrotask(MicrotaskCallback microtask, void* data = NULL);
+
+ /**
+ * Experimental: Controls whether the Microtask Work Queue is automatically
+ * run when the script call depth decrements to zero.
+ */
+ void SetAutorunMicrotasks(bool autorun);
+
+ /**
+ * Experimental: Returns whether the Microtask Work Queue is automatically
+ * run when the script call depth decrements to zero.
+ */
+ bool WillAutorunMicrotasks() const;
+
+ /**
+ * Sets a callback for counting the number of times a feature of V8 is used.
+ */
+ void SetUseCounterCallback(UseCounterCallback callback);
+
+ /**
+ * Enables the host application to provide a mechanism for recording
+ * statistics counters.
+ */
+ void SetCounterFunction(CounterLookupCallback);
+
+ /**
+ * Enables the host application to provide a mechanism for recording
+ * histograms. The CreateHistogram function returns a
+ * histogram which will later be passed to the AddHistogramSample
+ * function.
+ */
+ void SetCreateHistogramFunction(CreateHistogramCallback);
+ void SetAddHistogramSampleFunction(AddHistogramSampleCallback);
+
+ /**
+ * Optional notification that the embedder is idle.
+ * V8 uses the notification to reduce memory footprint.
+ * This call can be used repeatedly if the embedder remains idle.
+ * Returns true if the embedder should stop calling IdleNotification
+ * until real work has been done. This indicates that V8 has done
+ * as much cleanup as it will be able to do.
+ *
+ * The idle_time_in_ms argument specifies the time V8 has to do reduce
+ * the memory footprint. There is no guarantee that the actual work will be
+ * done within the time limit.
+ */
+ bool IdleNotification(int idle_time_in_ms);
+
+ /**
+ * Optional notification that the system is running low on memory.
+ * V8 uses these notifications to attempt to free memory.
+ */
+ void LowMemoryNotification();
+
+ /**
+ * Optional notification that a context has been disposed. V8 uses
+ * these notifications to guide the GC heuristic. Returns the number
+ * of context disposals - including this one - since the last time
+ * V8 had a chance to clean up.
+ */
+ int ContextDisposedNotification();
+
+ /**
+ * Allows the host application to provide the address of a function that is
+ * notified each time code is added, moved or removed.
+ *
+ * \param options options for the JIT code event handler.
+ * \param event_handler the JIT code event handler, which will be invoked
+ * each time code is added, moved or removed.
+ * \note \p event_handler won't get notified of existent code.
+ * \note since code removal notifications are not currently issued, the
+ * \p event_handler may get notifications of code that overlaps earlier
+ * code notifications. This happens when code areas are reused, and the
+ * earlier overlapping code areas should therefore be discarded.
+ * \note the events passed to \p event_handler and the strings they point to
+ * are not guaranteed to live past each call. The \p event_handler must
+ * copy strings and other parameters it needs to keep around.
+ * \note the set of events declared in JitCodeEvent::EventType is expected to
+ * grow over time, and the JitCodeEvent structure is expected to accrue
+ * new members. The \p event_handler function must ignore event codes
+ * it does not recognize to maintain future compatibility.
+ * \note Use Isolate::CreateParams to get events for code executed during
+ * Isolate setup.
+ */
+ void SetJitCodeEventHandler(JitCodeEventOptions options,
+ JitCodeEventHandler event_handler);
+
+ /**
+ * Modifies the stack limit for this Isolate.
+ *
+ * \param stack_limit An address beyond which the Vm's stack may not grow.
+ *
+ * \note If you are using threads then you should hold the V8::Locker lock
+ * while setting the stack limit and you must set a non-default stack
+ * limit separately for each thread.
+ */
+ void SetStackLimit(uintptr_t stack_limit);
private:
+ template<class K, class V, class Traits> friend class PersistentValueMap;
+
Isolate();
Isolate(const Isolate&);
~Isolate();
Isolate& operator=(const Isolate&);
void* operator new(size_t size);
void operator delete(void*, size_t);
+
+ void SetObjectGroupId(internal::Object** object, UniqueId id);
+ void SetReferenceFromGroup(UniqueId id, internal::Object** object);
+ void SetReference(internal::Object** parent, internal::Object** child);
+ void CollectAllGarbage(const char* gc_reason);
};
-
-class StartupData {
+class V8_EXPORT StartupData {
public:
enum CompressionAlgorithm {
kUncompressed,
@@ -2841,7 +4872,7 @@
*
* For an example of the class usage, see the "shell.cc" sample application.
*/
-class V8EXPORT StartupDataDecompressor { // NOLINT
+class V8_EXPORT StartupDataDecompressor { // NOLINT
public:
StartupDataDecompressor();
virtual ~StartupDataDecompressor();
@@ -2870,19 +4901,22 @@
* resolving the location of a return address on the stack. Profilers that
* change the return address on the stack can use this to resolve the stack
* location to whereever the profiler stashed the original return address.
- * When invoked, return_addr_location will point to a location on stack where
- * a machine return address resides, this function should return either the
- * same pointer, or a pointer to the profiler's copy of the original return
- * address.
+ *
+ * \param return_addr_location points to a location on stack where a machine
+ * return address resides.
+ * \returns either return_addr_location, or else a pointer to the profiler's
+ * copy of the original return address.
+ *
+ * \note the resolver function must not cause garbage collection.
*/
typedef uintptr_t (*ReturnAddressLocationResolver)(
uintptr_t return_addr_location);
/**
- * Interface for iterating though all external resources in the heap.
+ * Interface for iterating through all external resources in the heap.
*/
-class V8EXPORT ExternalResourceVisitor { // NOLINT
+class V8_EXPORT ExternalResourceVisitor { // NOLINT
public:
virtual ~ExternalResourceVisitor() {}
virtual void VisitExternalString(Handle<String> string) {}
@@ -2890,9 +4924,20 @@
/**
+ * Interface for iterating through all the persistent handles in the heap.
+ */
+class V8_EXPORT PersistentHandleVisitor { // NOLINT
+ public:
+ virtual ~PersistentHandleVisitor() {}
+ virtual void VisitPersistentHandle(Persistent<Value>* value,
+ uint16_t class_id) {}
+};
+
+
+/**
* Container class for static utility functions.
*/
-class V8EXPORT V8 {
+class V8_EXPORT V8 {
public:
/** Set the callback to invoke in case of fatal errors. */
static void SetFatalErrorHandler(FatalErrorCallback that);
@@ -2905,18 +4950,12 @@
AllowCodeGenerationFromStringsCallback that);
/**
- * Ignore out-of-memory exceptions.
- *
- * V8 running out of memory is treated as a fatal error by default.
- * This means that the fatal error handler is called and that V8 is
- * terminated.
- *
- * IgnoreOutOfMemoryException can be used to not treat an
- * out-of-memory situation as a fatal error. This way, the contexts
- * that did not cause the out of memory problem might be able to
- * continue execution.
+ * Set allocator to use for ArrayBuffer memory.
+ * The allocator should be set only once. The allocator should be set
+ * before any code tha uses ArrayBuffers is executed.
+ * This allocator is used in all isolates.
*/
- static void IgnoreOutOfMemoryException();
+ static void SetArrayBufferAllocator(ArrayBuffer::Allocator* allocator);
/**
* Check if V8 is dead and therefore unusable. This is the case after
@@ -2949,10 +4988,31 @@
static void SetDecompressedStartupData(StartupData* decompressed_data);
/**
+ * Hand startup data to V8, in case the embedder has chosen to build
+ * V8 with external startup data.
+ *
+ * Note:
+ * - By default the startup data is linked into the V8 library, in which
+ * case this function is not meaningful.
+ * - If this needs to be called, it needs to be called before V8
+ * tries to make use of its built-ins.
+ * - To avoid unnecessary copies of data, V8 will point directly into the
+ * given data blob, so pretty please keep it around until V8 exit.
+ * - Compression of the startup blob might be useful, but needs to
+ * handled entirely on the embedders' side.
+ * - The call will abort if the data is invalid.
+ */
+ static void SetNativesDataBlob(StartupData* startup_blob);
+ static void SetSnapshotDataBlob(StartupData* startup_blob);
+
+ /**
* Adds a message listener.
*
* The same message listener can be added more than once and in that
* case it will be called more than once for each message.
+ *
+ * If data is specified, it will be passed to the callback when it is called.
+ * Otherwise, the exception object will be passed to the callback instead.
*/
static bool AddMessageListener(MessageCallback that,
Handle<Value> data = Handle<Value>());
@@ -2986,27 +5046,6 @@
/** Get the version string. */
static const char* GetVersion();
- /**
- * Enables the host application to provide a mechanism for recording
- * statistics counters.
- */
- static void SetCounterFunction(CounterLookupCallback);
-
- /**
- * Enables the host application to provide a mechanism for recording
- * histograms. The CreateHistogram function returns a
- * histogram which will later be passed to the AddHistogramSample
- * function.
- */
- static void SetCreateHistogramFunction(CreateHistogramCallback);
- static void SetAddHistogramSampleFunction(AddHistogramSampleCallback);
-
- /**
- * Enables the computation of a sliding window of states. The sliding
- * window information is recorded in statistics counters.
- */
- static void EnableSlidingStateWindow();
-
/** Callback function for reporting failed access checks.*/
static void SetFailedAccessCheckCallbackFunction(FailedAccessCheckCallback);
@@ -3030,16 +5069,6 @@
static void RemoveGCPrologueCallback(GCPrologueCallback callback);
/**
- * The function is deprecated. Please use AddGCPrologueCallback instead.
- * Enables the host application to receive a notification before a
- * garbage collection. Allocations are not allowed in the
- * callback function, you therefore cannot manipulate objects (set
- * or delete properties for example) since it is possible such
- * operations will result in the allocation of objects.
- */
- static void SetGlobalGCPrologueCallback(GCCallback);
-
- /**
* Enables the host application to receive a notification after a
* garbage collection. Allocations are not allowed in the
* callback function, you therefore cannot manipulate objects (set
@@ -3059,16 +5088,6 @@
static void RemoveGCEpilogueCallback(GCEpilogueCallback callback);
/**
- * The function is deprecated. Please use AddGCEpilogueCallback instead.
- * Enables the host application to receive a notification after a
- * major garbage collection. Allocations are not allowed in the
- * callback function, you therefore cannot manipulate objects (set
- * or delete properties for example) since it is possible such
- * operations will result in the allocation of objects.
- */
- static void SetGlobalGCEpilogueCallback(GCCallback);
-
- /**
* Enables the host application to provide a mechanism to be notified
* and perform custom logging when V8 Allocates Executable Memory.
*/
@@ -3082,47 +5101,8 @@
static void RemoveMemoryAllocationCallback(MemoryAllocationCallback callback);
/**
- * Adds a callback to notify the host application when a script finished
- * running. If a script re-enters the runtime during executing, the
- * CallCompletedCallback is only invoked when the outer-most script
- * execution ends. Executing scripts inside the callback do not trigger
- * further callbacks.
- */
- static void AddCallCompletedCallback(CallCompletedCallback callback);
-
- /**
- * Removes callback that was installed by AddCallCompletedCallback.
- */
- static void RemoveCallCompletedCallback(CallCompletedCallback callback);
-
- /**
- * Allows the host application to group objects together. If one
- * object in the group is alive, all objects in the group are alive.
- * After each garbage collection, object groups are removed. It is
- * intended to be used in the before-garbage-collection callback
- * function, for instance to simulate DOM tree connections among JS
- * wrapper objects.
- * See v8-profiler.h for RetainedObjectInfo interface description.
- */
- static void AddObjectGroup(Persistent<Value>* objects,
- size_t length,
- RetainedObjectInfo* info = NULL);
-
- /**
- * Allows the host application to declare implicit references between
- * the objects: if |parent| is alive, all |children| are alive too.
- * After each garbage collection, all implicit references
- * are removed. It is intended to be used in the before-garbage-collection
- * callback function.
- */
- static void AddImplicitReferences(Persistent<Object> parent,
- Persistent<Value>* children,
- size_t length);
-
- /**
- * Initializes from snapshot if possible. Otherwise, attempts to
- * initialize from scratch. This function is called implicitly if
- * you use the API without calling it first.
+ * Initializes V8. This function needs to be called before the first Isolate
+ * is created. It always returns true.
*/
static bool Initialize();
@@ -3140,88 +5120,15 @@
ReturnAddressLocationResolver return_address_resolver);
/**
- * Adjusts the amount of registered external memory. Used to give
- * V8 an indication of the amount of externally allocated memory
- * that is kept alive by JavaScript objects. V8 uses this to decide
- * when to perform global garbage collections. Registering
- * externally allocated memory will trigger global garbage
- * collections more often than otherwise in an attempt to garbage
- * collect the JavaScript objects keeping the externally allocated
- * memory alive.
- *
- * \param change_in_bytes the change in externally allocated memory
- * that is kept alive by JavaScript objects.
- * \returns the adjusted value.
- */
- static int AdjustAmountOfExternalAllocatedMemory(int change_in_bytes);
-
- /**
- * Suspends recording of tick samples in the profiler.
- * When the V8 profiling mode is enabled (usually via command line
- * switches) this function suspends recording of tick samples.
- * Profiling ticks are discarded until ResumeProfiler() is called.
- *
- * See also the --prof and --prof_auto command line switches to
- * enable V8 profiling.
- */
- static void PauseProfiler();
-
- /**
- * Resumes recording of tick samples in the profiler.
- * See also PauseProfiler().
- */
- static void ResumeProfiler();
-
- /**
- * Return whether profiler is currently paused.
- */
- static bool IsProfilerPaused();
-
- /**
- * Retrieve the V8 thread id of the calling thread.
- *
- * The thread id for a thread should only be retrieved after the V8
- * lock has been acquired with a Locker object with that thread.
- */
- static int GetCurrentThreadId();
-
- /**
- * Forcefully terminate execution of a JavaScript thread. This can
- * be used to terminate long-running scripts.
- *
- * TerminateExecution should only be called when then V8 lock has
- * been acquired with a Locker object. Therefore, in order to be
- * able to terminate long-running threads, preemption must be
- * enabled to allow the user of TerminateExecution to acquire the
- * lock.
- *
- * The termination is achieved by throwing an exception that is
- * uncatchable by JavaScript exception handlers. Termination
- * exceptions act as if they were caught by a C++ TryCatch exception
- * handler. If forceful termination is used, any C++ TryCatch
- * exception handler that catches an exception should check if that
- * exception is a termination exception and immediately return if
- * that is the case. Returning immediately in that case will
- * continue the propagation of the termination exception if needed.
- *
- * The thread id passed to TerminateExecution must have been
- * obtained by calling GetCurrentThreadId on the thread in question.
- *
- * \param thread_id The thread id of the thread to terminate.
- */
- static void TerminateExecution(int thread_id);
-
- /**
* Forcefully terminate the current thread of JavaScript execution
- * in the given isolate. If no isolate is provided, the default
- * isolate is used.
+ * in the given isolate.
*
* This method can be used by any thread even if that thread has not
* acquired the V8 lock with a Locker object.
*
* \param isolate The isolate in which to terminate the current JS execution.
*/
- static void TerminateExecution(Isolate* isolate = NULL);
+ static void TerminateExecution(Isolate* isolate);
/**
* Is V8 terminating JavaScript execution.
@@ -3236,6 +5143,24 @@
static bool IsExecutionTerminating(Isolate* isolate = NULL);
/**
+ * Resume execution capability in the given isolate, whose execution
+ * was previously forcefully terminated using TerminateExecution().
+ *
+ * When execution is forcefully terminated using TerminateExecution(),
+ * the isolate can not resume execution until all JavaScript frames
+ * have propagated the uncatchable exception which is generated. This
+ * method allows the program embedding the engine to handle the
+ * termination event and resume execution capability, even if
+ * JavaScript frames remain on the stack.
+ *
+ * This method can be used by any thread even if that thread has not
+ * acquired the V8 lock with a Locker object.
+ *
+ * \param isolate The isolate in which to resume execution capability.
+ */
+ static void CancelTerminateExecution(Isolate* isolate);
+
+ /**
* Releases any resources used by v8 and stops any utility threads
* that may be running. Note that disposing v8 is permanent, it
* cannot be reinitialized.
@@ -3247,63 +5172,71 @@
static bool Dispose();
/**
- * Get statistics about the heap memory usage.
- */
- static void GetHeapStatistics(HeapStatistics* heap_statistics);
-
- /**
* Iterates through all external resources referenced from current isolate
- * heap. This method is not expected to be used except for debugging purposes
- * and may be quite slow.
+ * heap. GC is not invoked prior to iterating, therefore there is no
+ * guarantee that visited objects are still alive.
*/
static void VisitExternalResources(ExternalResourceVisitor* visitor);
/**
- * Optional notification that the embedder is idle.
- * V8 uses the notification to reduce memory footprint.
- * This call can be used repeatedly if the embedder remains idle.
- * Returns true if the embedder should stop calling IdleNotification
- * until real work has been done. This indicates that V8 has done
- * as much cleanup as it will be able to do.
+ * Iterates through all the persistent handles in the current isolate's heap
+ * that have class_ids.
+ */
+ static void VisitHandlesWithClassIds(PersistentHandleVisitor* visitor);
+
+ /**
+ * Iterates through all the persistent handles in the current isolate's heap
+ * that have class_ids and are candidates to be marked as partially dependent
+ * handles. This will visit handles to young objects created since the last
+ * garbage collection but is free to visit an arbitrary superset of these
+ * objects.
+ */
+ static void VisitHandlesForPartialDependence(
+ Isolate* isolate, PersistentHandleVisitor* visitor);
+
+ /**
+ * Initialize the ICU library bundled with V8. The embedder should only
+ * invoke this method when using the bundled ICU. Returns true on success.
*
- * The hint argument specifies the amount of work to be done in the function
- * on scale from 1 to 1000. There is no guarantee that the actual work will
- * match the hint.
+ * If V8 was compiled with the ICU data in an external file, the location
+ * of the data file has to be provided.
*/
- static bool IdleNotification(int hint = 1000);
+ static bool InitializeICU(const char* icu_data_file = NULL);
/**
- * Optional notification that the system is running low on memory.
- * V8 uses these notifications to attempt to free memory.
+ * Sets the v8::Platform to use. This should be invoked before V8 is
+ * initialized.
*/
- static void LowMemoryNotification();
+ static void InitializePlatform(Platform* platform);
/**
- * Optional notification that a context has been disposed. V8 uses
- * these notifications to guide the GC heuristic. Returns the number
- * of context disposals - including this one - since the last time
- * V8 had a chance to clean up.
+ * Clears all references to the v8::Platform. This should be invoked after
+ * V8 was disposed.
*/
- static int ContextDisposedNotification();
+ static void ShutdownPlatform();
private:
V8();
- static internal::Object** GlobalizeReference(internal::Object** handle);
+ static internal::Object** GlobalizeReference(internal::Isolate* isolate,
+ internal::Object** handle);
+ static internal::Object** CopyPersistent(internal::Object** handle);
static void DisposeGlobal(internal::Object** global_handle);
+ typedef WeakCallbackData<Value, void>::Callback WeakCallback;
static void MakeWeak(internal::Object** global_handle,
void* data,
- WeakReferenceCallback);
- static void ClearWeak(internal::Object** global_handle);
- static void MarkIndependent(internal::Object** global_handle);
- static bool IsGlobalNearDeath(internal::Object** global_handle);
- static bool IsGlobalWeak(internal::Object** global_handle);
- static void SetWrapperClassId(internal::Object** global_handle,
- uint16_t class_id);
+ WeakCallback weak_callback);
+ static void* ClearWeak(internal::Object** global_handle);
+ static void Eternalize(Isolate* isolate,
+ Value* handle,
+ int* index);
+ static Local<Value> GetEternal(Isolate* isolate, int index);
template <class T> friend class Handle;
template <class T> friend class Local;
- template <class T> friend class Persistent;
+ template <class T> friend class Eternal;
+ template <class T> friend class PersistentBase;
+ template <class T, class M> friend class Persistent;
friend class Context;
};
@@ -3311,10 +5244,12 @@
/**
* An external exception handler.
*/
-class V8EXPORT TryCatch {
+class V8_EXPORT TryCatch {
public:
/**
- * Creates a new try/catch block and registers it with v8.
+ * Creates a new try/catch block and registers it with v8. Note that
+ * all TryCatch blocks should be stack allocated because the memory
+ * location itself is compared against JavaScript try/catch blocks.
*/
TryCatch();
@@ -3329,21 +5264,30 @@
bool HasCaught() const;
/**
- * For certain types of exceptions, it makes no sense to continue
- * execution.
+ * For certain types of exceptions, it makes no sense to continue execution.
*
- * Currently, the only type of exception that can be caught by a
- * TryCatch handler and for which it does not make sense to continue
- * is termination exception. Such exceptions are thrown when the
- * TerminateExecution methods are called to terminate a long-running
- * script.
- *
- * If CanContinue returns false, the correct action is to perform
- * any C++ cleanup needed and then return.
+ * If CanContinue returns false, the correct action is to perform any C++
+ * cleanup needed and then return. If CanContinue returns false and
+ * HasTerminated returns true, it is possible to call
+ * CancelTerminateExecution in order to continue calling into the engine.
*/
bool CanContinue() const;
/**
+ * Returns true if an exception has been caught due to script execution
+ * being terminated.
+ *
+ * There is no JavaScript representation of an execution termination
+ * exception. Such exceptions are thrown when the TerminateExecution
+ * methods are called to terminate a long-running script.
+ *
+ * If such an exception has been thrown, HasTerminated will return true,
+ * indicating that it is possible to call CancelTerminateExecution in order
+ * to continue calling into the engine.
+ */
+ bool HasTerminated() const;
+
+ /**
* Throws the exception caught by this TryCatch in a way that avoids
* it being caught again by this same TryCatch. As with ThrowException
* it is illegal to execute any JavaScript operations after calling
@@ -3377,7 +5321,8 @@
/**
* Clears any exceptions that may have been caught by this try/catch block.
- * After this method has been called, HasCaught() will return false.
+ * After this method has been called, HasCaught() will return false. Cancels
+ * the scheduled exception if it is caught and ReThrow() is not called before.
*
* It is not necessary to clear a try/catch block before using it again; if
* another exception is thrown the previously caught exception will just be
@@ -3403,15 +5348,44 @@
*/
void SetCaptureMessage(bool value);
+ /**
+ * There are cases when the raw address of C++ TryCatch object cannot be
+ * used for comparisons with addresses into the JS stack. The cases are:
+ * 1) ARM, ARM64 and MIPS simulators which have separate JS stack.
+ * 2) Address sanitizer allocates local C++ object in the heap when
+ * UseAfterReturn mode is enabled.
+ * This method returns address that can be used for comparisons with
+ * addresses into the JS stack. When neither simulator nor ASAN's
+ * UseAfterReturn is enabled, then the address returned will be the address
+ * of the C++ try catch handler itself.
+ */
+ static void* JSStackComparableAddress(v8::TryCatch* handler) {
+ if (handler == NULL) return NULL;
+ return handler->js_stack_comparable_address_;
+ }
+
private:
+ void ResetInternal();
+
+ // Make it hard to create heap-allocated TryCatch blocks.
+ TryCatch(const TryCatch&);
+ void operator=(const TryCatch&);
+ void* operator new(size_t size);
+ void operator delete(void*, size_t);
+
v8::internal::Isolate* isolate_;
- void* next_;
+ v8::TryCatch* next_;
void* exception_;
- void* message_;
+ void* message_obj_;
+ void* message_script_;
+ void* js_stack_comparable_address_;
+ int message_start_pos_;
+ int message_end_pos_;
bool is_verbose_ : 1;
bool can_continue_ : 1;
bool capture_message_ : 1;
bool rethrow_ : 1;
+ bool has_terminated_ : 1;
friend class v8::internal::Isolate;
};
@@ -3421,15 +5395,19 @@
/**
- * Ignore
+ * A container for extension names.
*/
-class V8EXPORT ExtensionConfiguration {
+class V8_EXPORT ExtensionConfiguration {
public:
+ ExtensionConfiguration() : name_count_(0), names_(NULL) { }
ExtensionConfiguration(int name_count, const char* names[])
: name_count_(name_count), names_(names) { }
+
+ const char** begin() const { return &names_[0]; }
+ const char** end() const { return &names_[name_count_]; }
+
private:
- friend class ImplementationUtilities;
- int name_count_;
+ const int name_count_;
const char** names_;
};
@@ -3438,23 +5416,19 @@
* A sandboxed execution context with its own set of built-in objects
* and functions.
*/
-class V8EXPORT Context {
+class V8_EXPORT Context {
public:
/**
- * Returns the global proxy object or global object itself for
- * detached contexts.
+ * Returns the global proxy object.
*
- * Global proxy object is a thin wrapper whose prototype points to
- * actual context's global object with the properties like Object, etc.
- * This is done that way for security reasons (for more details see
+ * Global proxy object is a thin wrapper whose prototype points to actual
+ * context's global object with the properties like Object, etc. This is done
+ * that way for security reasons (for more details see
* https://wiki.mozilla.org/Gecko:SplitWindow).
*
* Please note that changes to global proxy object prototype most probably
- * would break VM---v8 expects only global object as a prototype of
- * global proxy object.
- *
- * If DetachGlobal() has been invoked, Global() would return actual global
- * object until global is reattached with ReattachGlobal().
+ * would break VM---v8 expects only global object as a prototype of global
+ * proxy object.
*/
Local<Object> Global();
@@ -3465,22 +5439,10 @@
void DetachGlobal();
/**
- * Reattaches a global object to a context. This can be used to
- * restore the connection between a global object and a context
- * after DetachGlobal has been called.
+ * Creates a new context and returns a handle to the newly allocated
+ * context.
*
- * \param global_object The global object to reattach to the
- * context. For this to work, the global object must be the global
- * object that was associated with this context before a call to
- * DetachGlobal.
- */
- void ReattachGlobal(Handle<Object> global_object);
-
- /** Creates a new context.
- *
- * Returns a persistent handle to the newly allocated context. This
- * persistent handle has to be disposed when the context is no
- * longer used so the context can be garbage collected.
+ * \param isolate The isolate in which to create the context.
*
* \param extensions An optional extension configuration containing
* the extensions to be installed in the newly created context.
@@ -3494,24 +5456,12 @@
* template. The state of the global object will be completely reset
* and only object identify will remain.
*/
- static Persistent<Context> New(
+ static Local<Context> New(
+ Isolate* isolate,
ExtensionConfiguration* extensions = NULL,
Handle<ObjectTemplate> global_template = Handle<ObjectTemplate>(),
Handle<Value> global_object = Handle<Value>());
- /** Returns the last entered context. */
- static Local<Context> GetEntered();
-
- /** Returns the context that is on the top of the stack. */
- static Local<Context> GetCurrent();
-
- /**
- * Returns the context of the calling JavaScript code. That is the
- * context of the top-most JavaScript frame. If there are no
- * JavaScript frames an empty handle is returned.
- */
- static Local<Context> GetCalling();
-
/**
* Sets the security token for the context. To access an object in
* another context, the security tokens must match.
@@ -3538,19 +5488,37 @@
*/
void Exit();
- /** Returns true if the context has experienced an out of memory situation. */
- bool HasOutOfMemoryException();
-
- /** Returns true if V8 has a current context. */
- static bool InContext();
+ /** Returns an isolate associated with a current context. */
+ v8::Isolate* GetIsolate();
/**
- * Associate an additional data object with the context. This is mainly used
- * with the debugger to provide additional information on the context through
- * the debugger API.
+ * Gets the embedder data with the given index, which must have been set by a
+ * previous call to SetEmbedderData with the same index. Note that index 0
+ * currently has a special meaning for Chrome's debugger.
*/
- void SetData(Handle<String> data);
- Local<Value> GetData();
+ V8_INLINE Local<Value> GetEmbedderData(int index);
+
+ /**
+ * Sets the embedder data with the given index, growing the data as
+ * needed. Note that index 0 currently has a special meaning for Chrome's
+ * debugger.
+ */
+ void SetEmbedderData(int index, Handle<Value> value);
+
+ /**
+ * Gets a 2-byte-aligned native pointer from the embedder data with the given
+ * index, which must have bees set by a previous call to
+ * SetAlignedPointerInEmbedderData with the same index. Note that index 0
+ * currently has a special meaning for Chrome's debugger.
+ */
+ V8_INLINE void* GetAlignedPointerFromEmbedderData(int index);
+
+ /**
+ * Sets a 2-byte-aligned native pointer in the embedder data with the given
+ * index, growing the data as needed. Note that index 0 currently has a
+ * special meaning for Chrome's debugger.
+ */
+ void SetAlignedPointerInEmbedderData(int index, void* value);
/**
* Control whether code generation from strings is allowed. Calling
@@ -3574,15 +5542,23 @@
bool IsCodeGenerationFromStringsAllowed();
/**
+ * Sets the error description for the exception that is thrown when
+ * code generation from strings is not allowed and 'eval' or the 'Function'
+ * constructor are called.
+ */
+ void SetErrorMessageForCodeGenerationFromStrings(Handle<String> message);
+
+ /**
* Stack-allocated class which sets the execution context for all
* operations executed within a local scope.
*/
class Scope {
public:
- explicit inline Scope(Handle<Context> context) : context_(context) {
+ explicit V8_INLINE Scope(Handle<Context> context) : context_(context) {
context_->Enter();
}
- inline ~Scope() { context_->Exit(); }
+ V8_INLINE ~Scope() { context_->Exit(); }
+
private:
Handle<Context> context_;
};
@@ -3592,25 +5568,26 @@
friend class Script;
friend class Object;
friend class Function;
+
+ Local<Value> SlowGetEmbedderData(int index);
+ void* SlowGetAlignedPointerFromEmbedderData(int index);
};
/**
- * Multiple threads in V8 are allowed, but only one thread at a time
- * is allowed to use any given V8 isolate. See Isolate class
- * comments. The definition of 'using V8 isolate' includes
- * accessing handles or holding onto object pointers obtained
- * from V8 handles while in the particular V8 isolate. It is up
- * to the user of V8 to ensure (perhaps with locking) that this
- * constraint is not violated. In addition to any other synchronization
- * mechanism that may be used, the v8::Locker and v8::Unlocker classes
- * must be used to signal thead switches to V8.
+ * Multiple threads in V8 are allowed, but only one thread at a time is allowed
+ * to use any given V8 isolate, see the comments in the Isolate class. The
+ * definition of 'using a V8 isolate' includes accessing handles or holding onto
+ * object pointers obtained from V8 handles while in the particular V8 isolate.
+ * It is up to the user of V8 to ensure, perhaps with locking, that this
+ * constraint is not violated. In addition to any other synchronization
+ * mechanism that may be used, the v8::Locker and v8::Unlocker classes must be
+ * used to signal thead switches to V8.
*
- * v8::Locker is a scoped lock object. While it's
- * active (i.e. between its construction and destruction) the current thread is
- * allowed to use the locked isolate. V8 guarantees that an isolate can be
- * locked by at most one thread at any time. In other words, the scope of a
- * v8::Locker is a critical section.
+ * v8::Locker is a scoped lock object. While it's active, i.e. between its
+ * construction and destruction, the current thread is allowed to use the locked
+ * isolate. V8 guarantees that an isolate can be locked by at most one thread at
+ * any time. In other words, the scope of a v8::Locker is a critical section.
*
* Sample usage:
* \code
@@ -3624,9 +5601,9 @@
* } // Destructor called here
* \endcode
*
- * If you wish to stop using V8 in a thread A you can do this either
- * by destroying the v8::Locker object as above or by constructing a
- * v8::Unlocker object:
+ * If you wish to stop using V8 in a thread A you can do this either by
+ * destroying the v8::Locker object as above or by constructing a v8::Unlocker
+ * object:
*
* \code
* {
@@ -3639,19 +5616,17 @@
* isolate->Enter();
* \endcode
*
- * The Unlocker object is intended for use in a long-running callback
- * from V8, where you want to release the V8 lock for other threads to
- * use.
+ * The Unlocker object is intended for use in a long-running callback from V8,
+ * where you want to release the V8 lock for other threads to use.
*
- * The v8::Locker is a recursive lock. That is, you can lock more than
- * once in a given thread. This can be useful if you have code that can
- * be called either from code that holds the lock or from code that does
- * not. The Unlocker is not recursive so you can not have several
- * Unlockers on the stack at once, and you can not use an Unlocker in a
- * thread that is not inside a Locker's scope.
+ * The v8::Locker is a recursive lock, i.e. you can lock more than once in a
+ * given thread. This can be useful if you have code that can be called either
+ * from code that holds the lock or from code that does not. The Unlocker is
+ * not recursive so you can not have several Unlockers on the stack at once, and
+ * you can not use an Unlocker in a thread that is not inside a Locker's scope.
*
- * An unlocker will unlock several lockers if it has to and reinstate
- * the correct depth of locking on its destruction. eg.:
+ * An unlocker will unlock several lockers if it has to and reinstate the
+ * correct depth of locking on its destruction, e.g.:
*
* \code
* // V8 not locked.
@@ -3674,48 +5649,36 @@
* }
* // V8 Now no longer locked.
* \endcode
- *
- *
*/
-class V8EXPORT Unlocker {
+class V8_EXPORT Unlocker {
public:
/**
- * Initialize Unlocker for a given Isolate. NULL means default isolate.
+ * Initialize Unlocker for a given Isolate.
*/
- explicit Unlocker(Isolate* isolate = NULL);
+ V8_INLINE explicit Unlocker(Isolate* isolate) { Initialize(isolate); }
+
~Unlocker();
private:
+ void Initialize(Isolate* isolate);
+
internal::Isolate* isolate_;
};
-class V8EXPORT Locker {
+class V8_EXPORT Locker {
public:
/**
- * Initialize Locker for a given Isolate. NULL means default isolate.
+ * Initialize Locker for a given Isolate.
*/
- explicit Locker(Isolate* isolate = NULL);
+ V8_INLINE explicit Locker(Isolate* isolate) { Initialize(isolate); }
+
~Locker();
/**
- * Start preemption.
- *
- * When preemption is started, a timer is fired every n milliseconds
- * that will switch between multiple threads that are in contention
- * for the V8 lock.
+ * Returns whether or not the locker for a given isolate, is locked by the
+ * current thread.
*/
- static void StartPreemption(int every_n_ms);
-
- /**
- * Stop preemption.
- */
- static void StopPreemption();
-
- /**
- * Returns whether or not the locker for a given isolate, or default isolate
- * if NULL is given, is locked by the current thread.
- */
- static bool IsLocked(Isolate* isolate = NULL);
+ static bool IsLocked(Isolate* isolate);
/**
* Returns whether v8::Locker is being used by this V8 instance.
@@ -3723,6 +5686,8 @@
static bool IsActive();
private:
+ void Initialize(Isolate* isolate);
+
bool has_lock_;
bool top_level_;
internal::Isolate* isolate_;
@@ -3735,53 +5700,6 @@
};
-/**
- * An interface for exporting data from V8, using "push" model.
- */
-class V8EXPORT OutputStream { // NOLINT
- public:
- enum OutputEncoding {
- kAscii = 0 // 7-bit ASCII.
- };
- enum WriteResult {
- kContinue = 0,
- kAbort = 1
- };
- virtual ~OutputStream() {}
- /** Notify about the end of stream. */
- virtual void EndOfStream() = 0;
- /** Get preferred output chunk size. Called only once. */
- virtual int GetChunkSize() { return 1024; }
- /** Get preferred output encoding. Called only once. */
- virtual OutputEncoding GetOutputEncoding() { return kAscii; }
- /**
- * Writes the next chunk of snapshot data into the stream. Writing
- * can be stopped by returning kAbort as function result. EndOfStream
- * will not be called in case writing was aborted.
- */
- virtual WriteResult WriteAsciiChunk(char* data, int size) = 0;
-};
-
-
-/**
- * An interface for reporting progress and controlling long-running
- * activities.
- */
-class V8EXPORT ActivityControl { // NOLINT
- public:
- enum ControlOption {
- kContinue = 0,
- kAbort = 1
- };
- virtual ~ActivityControl() {}
- /**
- * Notify about current progress. The activity can be stopped by
- * returning kAbort as the callback result.
- */
- virtual ControlOption ReportProgressValue(int done, int total) = 0;
-};
-
-
// --- Implementation ---
@@ -3789,6 +5707,7 @@
const int kApiPointerSize = sizeof(void*); // NOLINT
const int kApiIntSize = sizeof(int); // NOLINT
+const int kApiInt64Size = sizeof(int64_t); // NOLINT
// Tag information for HeapObject.
const int kHeapObjectTag = 1;
@@ -3802,63 +5721,67 @@
template <size_t ptr_size> struct SmiTagging;
+template<int kSmiShiftSize>
+V8_INLINE internal::Object* IntToSmi(int value) {
+ int smi_shift_bits = kSmiTagSize + kSmiShiftSize;
+ uintptr_t tagged_value =
+ (static_cast<uintptr_t>(value) << smi_shift_bits) | kSmiTag;
+ return reinterpret_cast<internal::Object*>(tagged_value);
+}
+
// Smi constants for 32-bit systems.
template <> struct SmiTagging<4> {
- static const int kSmiShiftSize = 0;
- static const int kSmiValueSize = 31;
- static inline int SmiToInt(internal::Object* value) {
+ enum { kSmiShiftSize = 0, kSmiValueSize = 31 };
+ static int SmiShiftSize() { return kSmiShiftSize; }
+ static int SmiValueSize() { return kSmiValueSize; }
+ V8_INLINE static int SmiToInt(const internal::Object* value) {
int shift_bits = kSmiTagSize + kSmiShiftSize;
// Throw away top 32 bits and shift down (requires >> to be sign extending).
return static_cast<int>(reinterpret_cast<intptr_t>(value)) >> shift_bits;
}
-
- // For 32-bit systems any 2 bytes aligned pointer can be encoded as smi
- // with a plain reinterpret_cast.
- static const uintptr_t kEncodablePointerMask = 0x1;
- static const int kPointerToSmiShift = 0;
+ V8_INLINE static internal::Object* IntToSmi(int value) {
+ return internal::IntToSmi<kSmiShiftSize>(value);
+ }
+ V8_INLINE static bool IsValidSmi(intptr_t value) {
+ // To be representable as an tagged small integer, the two
+ // most-significant bits of 'value' must be either 00 or 11 due to
+ // sign-extension. To check this we add 01 to the two
+ // most-significant bits, and check if the most-significant bit is 0
+ //
+ // CAUTION: The original code below:
+ // bool result = ((value + 0x40000000) & 0x80000000) == 0;
+ // may lead to incorrect results according to the C language spec, and
+ // in fact doesn't work correctly with gcc4.1.1 in some cases: The
+ // compiler may produce undefined results in case of signed integer
+ // overflow. The computation must be done w/ unsigned ints.
+ return static_cast<uintptr_t>(value + 0x40000000U) < 0x80000000U;
+ }
};
// Smi constants for 64-bit systems.
template <> struct SmiTagging<8> {
- static const int kSmiShiftSize = 31;
- static const int kSmiValueSize = 32;
- static inline int SmiToInt(internal::Object* value) {
+ enum { kSmiShiftSize = 31, kSmiValueSize = 32 };
+ static int SmiShiftSize() { return kSmiShiftSize; }
+ static int SmiValueSize() { return kSmiValueSize; }
+ V8_INLINE static int SmiToInt(const internal::Object* value) {
int shift_bits = kSmiTagSize + kSmiShiftSize;
// Shift down and throw away top 32 bits.
return static_cast<int>(reinterpret_cast<intptr_t>(value) >> shift_bits);
}
-
- // To maximize the range of pointers that can be encoded
- // in the available 32 bits, we require them to be 8 bytes aligned.
- // This gives 2 ^ (32 + 3) = 32G address space covered.
- // It might be not enough to cover stack allocated objects on some platforms.
- static const int kPointerAlignment = 3;
-
- static const uintptr_t kEncodablePointerMask =
- ~(uintptr_t(0xffffffff) << kPointerAlignment);
-
- static const int kPointerToSmiShift =
- kSmiTagSize + kSmiShiftSize - kPointerAlignment;
+ V8_INLINE static internal::Object* IntToSmi(int value) {
+ return internal::IntToSmi<kSmiShiftSize>(value);
+ }
+ V8_INLINE static bool IsValidSmi(intptr_t value) {
+ // To be representable as a long smi, the value must be a 32-bit integer.
+ return (value == static_cast<int32_t>(value));
+ }
};
typedef SmiTagging<kApiPointerSize> PlatformSmiTagging;
const int kSmiShiftSize = PlatformSmiTagging::kSmiShiftSize;
const int kSmiValueSize = PlatformSmiTagging::kSmiValueSize;
-const uintptr_t kEncodablePointerMask =
- PlatformSmiTagging::kEncodablePointerMask;
-const int kPointerToSmiShift = PlatformSmiTagging::kPointerToSmiShift;
-
-template <size_t ptr_size> struct InternalConstants;
-
-// Internal constants for 32-bit systems.
-template <> struct InternalConstants<4> {
- static const int kStringResourceOffset = 3 * kApiPointerSize;
-};
-
-// Internal constants for 64-bit systems.
-template <> struct InternalConstants<8> {
- static const int kStringResourceOffset = 3 * kApiPointerSize;
-};
+V8_INLINE static bool SmiValuesAre31Bits() { return kSmiValueSize == 31; }
+V8_INLINE static bool SmiValuesAre32Bits() { return kSmiValueSize == 32; }
/**
* This class exports constants and functionality from within v8 that
@@ -3870,71 +5793,163 @@
// These values match non-compiler-dependent values defined within
// the implementation of v8.
static const int kHeapObjectMapOffset = 0;
- static const int kMapInstanceTypeOffset = 1 * kApiPointerSize + kApiIntSize;
- static const int kStringResourceOffset =
- InternalConstants<kApiPointerSize>::kStringResourceOffset;
+ static const int kMapInstanceTypeAndBitFieldOffset =
+ 1 * kApiPointerSize + kApiIntSize;
+ static const int kStringResourceOffset = 3 * kApiPointerSize;
+ static const int kOddballKindOffset = 3 * kApiPointerSize;
static const int kForeignAddressOffset = kApiPointerSize;
static const int kJSObjectHeaderSize = 3 * kApiPointerSize;
+ static const int kFixedArrayHeaderSize = 2 * kApiPointerSize;
+ static const int kContextHeaderSize = 2 * kApiPointerSize;
+ static const int kContextEmbedderDataIndex = 95;
static const int kFullStringRepresentationMask = 0x07;
+ static const int kStringEncodingMask = 0x4;
static const int kExternalTwoByteRepresentationTag = 0x02;
+ static const int kExternalOneByteRepresentationTag = 0x06;
- static const int kJSObjectType = 0xaa;
+ static const int kIsolateEmbedderDataOffset = 0 * kApiPointerSize;
+ static const int kAmountOfExternalAllocatedMemoryOffset =
+ 4 * kApiPointerSize;
+ static const int kAmountOfExternalAllocatedMemoryAtLastGlobalGCOffset =
+ kAmountOfExternalAllocatedMemoryOffset + kApiInt64Size;
+ static const int kIsolateRootsOffset =
+ kAmountOfExternalAllocatedMemoryAtLastGlobalGCOffset + kApiInt64Size +
+ kApiPointerSize;
+ static const int kUndefinedValueRootIndex = 5;
+ static const int kNullValueRootIndex = 7;
+ static const int kTrueValueRootIndex = 8;
+ static const int kFalseValueRootIndex = 9;
+ static const int kEmptyStringRootIndex = 164;
+
+ // The external allocation limit should be below 256 MB on all architectures
+ // to avoid that resource-constrained embedders run low on memory.
+ static const int kExternalAllocationLimit = 192 * 1024 * 1024;
+
+ static const int kNodeClassIdOffset = 1 * kApiPointerSize;
+ static const int kNodeFlagsOffset = 1 * kApiPointerSize + 3;
+ static const int kNodeStateMask = 0xf;
+ static const int kNodeStateIsWeakValue = 2;
+ static const int kNodeStateIsPendingValue = 3;
+ static const int kNodeStateIsNearDeathValue = 4;
+ static const int kNodeIsIndependentShift = 4;
+ static const int kNodeIsPartiallyDependentShift = 5;
+
+ static const int kJSObjectType = 0xbc;
static const int kFirstNonstringType = 0x80;
- static const int kForeignType = 0x85;
+ static const int kOddballType = 0x83;
+ static const int kForeignType = 0x88;
- static inline bool HasHeapObjectTag(internal::Object* value) {
+ static const int kUndefinedOddballKind = 5;
+ static const int kNullOddballKind = 3;
+
+ static const uint32_t kNumIsolateDataSlots = 4;
+
+ V8_EXPORT static void CheckInitializedImpl(v8::Isolate* isolate);
+ V8_INLINE static void CheckInitialized(v8::Isolate* isolate) {
+#ifdef V8_ENABLE_CHECKS
+ CheckInitializedImpl(isolate);
+#endif
+ }
+
+ V8_INLINE static bool HasHeapObjectTag(const internal::Object* value) {
return ((reinterpret_cast<intptr_t>(value) & kHeapObjectTagMask) ==
kHeapObjectTag);
}
- static inline bool HasSmiTag(internal::Object* value) {
- return ((reinterpret_cast<intptr_t>(value) & kSmiTagMask) == kSmiTag);
- }
-
- static inline int SmiValue(internal::Object* value) {
+ V8_INLINE static int SmiValue(const internal::Object* value) {
return PlatformSmiTagging::SmiToInt(value);
}
- static inline int GetInstanceType(internal::Object* obj) {
+ V8_INLINE static internal::Object* IntToSmi(int value) {
+ return PlatformSmiTagging::IntToSmi(value);
+ }
+
+ V8_INLINE static bool IsValidSmi(intptr_t value) {
+ return PlatformSmiTagging::IsValidSmi(value);
+ }
+
+ V8_INLINE static int GetInstanceType(const internal::Object* obj) {
typedef internal::Object O;
O* map = ReadField<O*>(obj, kHeapObjectMapOffset);
- return ReadField<uint8_t>(map, kMapInstanceTypeOffset);
+ // Map::InstanceType is defined so that it will always be loaded into
+ // the LS 8 bits of one 16-bit word, regardless of endianess.
+ return ReadField<uint16_t>(map, kMapInstanceTypeAndBitFieldOffset) & 0xff;
}
- static inline void* GetExternalPointerFromSmi(internal::Object* value) {
- const uintptr_t address = reinterpret_cast<uintptr_t>(value);
- return reinterpret_cast<void*>(address >> kPointerToSmiShift);
+ V8_INLINE static int GetOddballKind(const internal::Object* obj) {
+ typedef internal::Object O;
+ return SmiValue(ReadField<O*>(obj, kOddballKindOffset));
}
- static inline void* GetExternalPointer(internal::Object* obj) {
- if (HasSmiTag(obj)) {
- return GetExternalPointerFromSmi(obj);
- } else if (GetInstanceType(obj) == kForeignType) {
- return ReadField<void*>(obj, kForeignAddressOffset);
- } else {
- return NULL;
- }
- }
-
- static inline bool IsExternalTwoByteString(int instance_type) {
+ V8_INLINE static bool IsExternalTwoByteString(int instance_type) {
int representation = (instance_type & kFullStringRepresentationMask);
return representation == kExternalTwoByteRepresentationTag;
}
- template <typename T>
- static inline T ReadField(Object* ptr, int offset) {
- uint8_t* addr = reinterpret_cast<uint8_t*>(ptr) + offset - kHeapObjectTag;
- return *reinterpret_cast<T*>(addr);
+ V8_INLINE static uint8_t GetNodeFlag(internal::Object** obj, int shift) {
+ uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+ return *addr & static_cast<uint8_t>(1U << shift);
}
- static inline bool CanCastToHeapObject(void* o) { return false; }
- static inline bool CanCastToHeapObject(Context* o) { return true; }
- static inline bool CanCastToHeapObject(String* o) { return true; }
- static inline bool CanCastToHeapObject(Object* o) { return true; }
- static inline bool CanCastToHeapObject(Message* o) { return true; }
- static inline bool CanCastToHeapObject(StackTrace* o) { return true; }
- static inline bool CanCastToHeapObject(StackFrame* o) { return true; }
+ V8_INLINE static void UpdateNodeFlag(internal::Object** obj,
+ bool value, int shift) {
+ uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+ uint8_t mask = static_cast<uint8_t>(1U << shift);
+ *addr = static_cast<uint8_t>((*addr & ~mask) | (value << shift));
+ }
+
+ V8_INLINE static uint8_t GetNodeState(internal::Object** obj) {
+ uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+ return *addr & kNodeStateMask;
+ }
+
+ V8_INLINE static void UpdateNodeState(internal::Object** obj,
+ uint8_t value) {
+ uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + kNodeFlagsOffset;
+ *addr = static_cast<uint8_t>((*addr & ~kNodeStateMask) | value);
+ }
+
+ V8_INLINE static void SetEmbedderData(v8::Isolate* isolate,
+ uint32_t slot,
+ void* data) {
+ uint8_t *addr = reinterpret_cast<uint8_t *>(isolate) +
+ kIsolateEmbedderDataOffset + slot * kApiPointerSize;
+ *reinterpret_cast<void**>(addr) = data;
+ }
+
+ V8_INLINE static void* GetEmbedderData(const v8::Isolate* isolate,
+ uint32_t slot) {
+ const uint8_t* addr = reinterpret_cast<const uint8_t*>(isolate) +
+ kIsolateEmbedderDataOffset + slot * kApiPointerSize;
+ return *reinterpret_cast<void* const*>(addr);
+ }
+
+ V8_INLINE static internal::Object** GetRoot(v8::Isolate* isolate,
+ int index) {
+ uint8_t* addr = reinterpret_cast<uint8_t*>(isolate) + kIsolateRootsOffset;
+ return reinterpret_cast<internal::Object**>(addr + index * kApiPointerSize);
+ }
+
+ template <typename T>
+ V8_INLINE static T ReadField(const internal::Object* ptr, int offset) {
+ const uint8_t* addr =
+ reinterpret_cast<const uint8_t*>(ptr) + offset - kHeapObjectTag;
+ return *reinterpret_cast<const T*>(addr);
+ }
+
+ template <typename T>
+ V8_INLINE static T ReadEmbedderData(const v8::Context* context, int index) {
+ typedef internal::Object O;
+ typedef internal::Internals I;
+ O* ctx = *reinterpret_cast<O* const*>(context);
+ int embedder_data_offset = I::kContextHeaderSize +
+ (internal::kApiPointerSize * I::kContextEmbedderDataIndex);
+ O* embedder_data = I::ReadField<O*>(ctx, embedder_data_offset);
+ int value_offset =
+ I::kFixedArrayHeaderSize + (internal::kApiPointerSize * index);
+ return I::ReadField<T>(embedder_data, value_offset);
+ }
};
} // namespace internal
@@ -3945,126 +5960,384 @@
template <class T>
-Local<T> Local<T>::New(Handle<T> that) {
- if (that.IsEmpty()) return Local<T>();
- T* that_ptr = *that;
+Local<T> Local<T>::New(Isolate* isolate, Handle<T> that) {
+ return New(isolate, that.val_);
+}
+
+template <class T>
+Local<T> Local<T>::New(Isolate* isolate, const PersistentBase<T>& that) {
+ return New(isolate, that.val_);
+}
+
+template <class T>
+Handle<T> Handle<T>::New(Isolate* isolate, T* that) {
+ if (that == NULL) return Handle<T>();
+ T* that_ptr = that;
internal::Object** p = reinterpret_cast<internal::Object**>(that_ptr);
- if (internal::Internals::CanCastToHeapObject(that_ptr)) {
- return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(
- reinterpret_cast<internal::HeapObject*>(*p))));
- }
- return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(*p)));
+ return Handle<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(
+ reinterpret_cast<internal::Isolate*>(isolate), *p)));
}
template <class T>
-Persistent<T> Persistent<T>::New(Handle<T> that) {
- if (that.IsEmpty()) return Persistent<T>();
- internal::Object** p = reinterpret_cast<internal::Object**>(*that);
- return Persistent<T>(reinterpret_cast<T*>(V8::GlobalizeReference(p)));
+Local<T> Local<T>::New(Isolate* isolate, T* that) {
+ if (that == NULL) return Local<T>();
+ T* that_ptr = that;
+ internal::Object** p = reinterpret_cast<internal::Object**>(that_ptr);
+ return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(
+ reinterpret_cast<internal::Isolate*>(isolate), *p)));
+}
+
+
+template<class T>
+template<class S>
+void Eternal<T>::Set(Isolate* isolate, Local<S> handle) {
+ TYPE_CHECK(T, S);
+ V8::Eternalize(isolate, reinterpret_cast<Value*>(*handle), &this->index_);
+}
+
+
+template<class T>
+Local<T> Eternal<T>::Get(Isolate* isolate) {
+ return Local<T>(reinterpret_cast<T*>(*V8::GetEternal(isolate, index_)));
}
template <class T>
-bool Persistent<T>::IsNearDeath() const {
+T* PersistentBase<T>::New(Isolate* isolate, T* that) {
+ if (that == NULL) return NULL;
+ internal::Object** p = reinterpret_cast<internal::Object**>(that);
+ return reinterpret_cast<T*>(
+ V8::GlobalizeReference(reinterpret_cast<internal::Isolate*>(isolate),
+ p));
+}
+
+
+template <class T, class M>
+template <class S, class M2>
+void Persistent<T, M>::Copy(const Persistent<S, M2>& that) {
+ TYPE_CHECK(T, S);
+ this->Reset();
+ if (that.IsEmpty()) return;
+ internal::Object** p = reinterpret_cast<internal::Object**>(that.val_);
+ this->val_ = reinterpret_cast<T*>(V8::CopyPersistent(p));
+ M::Copy(that, this);
+}
+
+
+template <class T>
+bool PersistentBase<T>::IsIndependent() const {
+ typedef internal::Internals I;
if (this->IsEmpty()) return false;
- return V8::IsGlobalNearDeath(reinterpret_cast<internal::Object**>(**this));
+ return I::GetNodeFlag(reinterpret_cast<internal::Object**>(this->val_),
+ I::kNodeIsIndependentShift);
}
template <class T>
-bool Persistent<T>::IsWeak() const {
+bool PersistentBase<T>::IsNearDeath() const {
+ typedef internal::Internals I;
if (this->IsEmpty()) return false;
- return V8::IsGlobalWeak(reinterpret_cast<internal::Object**>(**this));
+ uint8_t node_state =
+ I::GetNodeState(reinterpret_cast<internal::Object**>(this->val_));
+ return node_state == I::kNodeStateIsNearDeathValue ||
+ node_state == I::kNodeStateIsPendingValue;
}
template <class T>
-void Persistent<T>::Dispose() {
+bool PersistentBase<T>::IsWeak() const {
+ typedef internal::Internals I;
+ if (this->IsEmpty()) return false;
+ return I::GetNodeState(reinterpret_cast<internal::Object**>(this->val_)) ==
+ I::kNodeStateIsWeakValue;
+}
+
+
+template <class T>
+void PersistentBase<T>::Reset() {
if (this->IsEmpty()) return;
- V8::DisposeGlobal(reinterpret_cast<internal::Object**>(**this));
+ V8::DisposeGlobal(reinterpret_cast<internal::Object**>(this->val_));
+ val_ = 0;
}
template <class T>
-Persistent<T>::Persistent() : Handle<T>() { }
-
-template <class T>
-void Persistent<T>::MakeWeak(void* parameters, WeakReferenceCallback callback) {
- V8::MakeWeak(reinterpret_cast<internal::Object**>(**this),
- parameters,
- callback);
+template <class S>
+void PersistentBase<T>::Reset(Isolate* isolate, const Handle<S>& other) {
+ TYPE_CHECK(T, S);
+ Reset();
+ if (other.IsEmpty()) return;
+ this->val_ = New(isolate, other.val_);
}
-template <class T>
-void Persistent<T>::ClearWeak() {
- V8::ClearWeak(reinterpret_cast<internal::Object**>(**this));
-}
template <class T>
-void Persistent<T>::MarkIndependent() {
- V8::MarkIndependent(reinterpret_cast<internal::Object**>(**this));
+template <class S>
+void PersistentBase<T>::Reset(Isolate* isolate,
+ const PersistentBase<S>& other) {
+ TYPE_CHECK(T, S);
+ Reset();
+ if (other.IsEmpty()) return;
+ this->val_ = New(isolate, other.val_);
}
+
template <class T>
-void Persistent<T>::SetWrapperClassId(uint16_t class_id) {
- V8::SetWrapperClassId(reinterpret_cast<internal::Object**>(**this), class_id);
+template <typename S, typename P>
+void PersistentBase<T>::SetWeak(
+ P* parameter,
+ typename WeakCallbackData<S, P>::Callback callback) {
+ TYPE_CHECK(S, T);
+ typedef typename WeakCallbackData<Value, void>::Callback Callback;
+ V8::MakeWeak(reinterpret_cast<internal::Object**>(this->val_),
+ parameter,
+ reinterpret_cast<Callback>(callback));
}
-Arguments::Arguments(internal::Object** implicit_args,
- internal::Object** values, int length,
- bool is_construct_call)
+
+template <class T>
+template <typename P>
+void PersistentBase<T>::SetWeak(
+ P* parameter,
+ typename WeakCallbackData<T, P>::Callback callback) {
+ SetWeak<T, P>(parameter, callback);
+}
+
+
+template <class T>
+template<typename P>
+P* PersistentBase<T>::ClearWeak() {
+ return reinterpret_cast<P*>(
+ V8::ClearWeak(reinterpret_cast<internal::Object**>(this->val_)));
+}
+
+
+template <class T>
+void PersistentBase<T>::MarkIndependent() {
+ typedef internal::Internals I;
+ if (this->IsEmpty()) return;
+ I::UpdateNodeFlag(reinterpret_cast<internal::Object**>(this->val_),
+ true,
+ I::kNodeIsIndependentShift);
+}
+
+
+template <class T>
+void PersistentBase<T>::MarkPartiallyDependent() {
+ typedef internal::Internals I;
+ if (this->IsEmpty()) return;
+ I::UpdateNodeFlag(reinterpret_cast<internal::Object**>(this->val_),
+ true,
+ I::kNodeIsPartiallyDependentShift);
+}
+
+
+template <class T, class M>
+T* Persistent<T, M>::ClearAndLeak() {
+ T* old;
+ old = this->val_;
+ this->val_ = NULL;
+ return old;
+}
+
+
+template <class T>
+void PersistentBase<T>::SetWrapperClassId(uint16_t class_id) {
+ typedef internal::Internals I;
+ if (this->IsEmpty()) return;
+ internal::Object** obj = reinterpret_cast<internal::Object**>(this->val_);
+ uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + I::kNodeClassIdOffset;
+ *reinterpret_cast<uint16_t*>(addr) = class_id;
+}
+
+
+template <class T>
+uint16_t PersistentBase<T>::WrapperClassId() const {
+ typedef internal::Internals I;
+ if (this->IsEmpty()) return 0;
+ internal::Object** obj = reinterpret_cast<internal::Object**>(this->val_);
+ uint8_t* addr = reinterpret_cast<uint8_t*>(obj) + I::kNodeClassIdOffset;
+ return *reinterpret_cast<uint16_t*>(addr);
+}
+
+
+template<typename T>
+ReturnValue<T>::ReturnValue(internal::Object** slot) : value_(slot) {}
+
+template<typename T>
+template<typename S>
+void ReturnValue<T>::Set(const Persistent<S>& handle) {
+ TYPE_CHECK(T, S);
+ if (V8_UNLIKELY(handle.IsEmpty())) {
+ *value_ = GetDefaultValue();
+ } else {
+ *value_ = *reinterpret_cast<internal::Object**>(*handle);
+ }
+}
+
+template<typename T>
+template<typename S>
+void ReturnValue<T>::Set(const Handle<S> handle) {
+ TYPE_CHECK(T, S);
+ if (V8_UNLIKELY(handle.IsEmpty())) {
+ *value_ = GetDefaultValue();
+ } else {
+ *value_ = *reinterpret_cast<internal::Object**>(*handle);
+ }
+}
+
+template<typename T>
+void ReturnValue<T>::Set(double i) {
+ TYPE_CHECK(T, Number);
+ Set(Number::New(GetIsolate(), i));
+}
+
+template<typename T>
+void ReturnValue<T>::Set(int32_t i) {
+ TYPE_CHECK(T, Integer);
+ typedef internal::Internals I;
+ if (V8_LIKELY(I::IsValidSmi(i))) {
+ *value_ = I::IntToSmi(i);
+ return;
+ }
+ Set(Integer::New(GetIsolate(), i));
+}
+
+template<typename T>
+void ReturnValue<T>::Set(uint32_t i) {
+ TYPE_CHECK(T, Integer);
+ // Can't simply use INT32_MAX here for whatever reason.
+ bool fits_into_int32_t = (i & (1U << 31)) == 0;
+ if (V8_LIKELY(fits_into_int32_t)) {
+ Set(static_cast<int32_t>(i));
+ return;
+ }
+ Set(Integer::NewFromUnsigned(GetIsolate(), i));
+}
+
+template<typename T>
+void ReturnValue<T>::Set(bool value) {
+ TYPE_CHECK(T, Boolean);
+ typedef internal::Internals I;
+ int root_index;
+ if (value) {
+ root_index = I::kTrueValueRootIndex;
+ } else {
+ root_index = I::kFalseValueRootIndex;
+ }
+ *value_ = *I::GetRoot(GetIsolate(), root_index);
+}
+
+template<typename T>
+void ReturnValue<T>::SetNull() {
+ TYPE_CHECK(T, Primitive);
+ typedef internal::Internals I;
+ *value_ = *I::GetRoot(GetIsolate(), I::kNullValueRootIndex);
+}
+
+template<typename T>
+void ReturnValue<T>::SetUndefined() {
+ TYPE_CHECK(T, Primitive);
+ typedef internal::Internals I;
+ *value_ = *I::GetRoot(GetIsolate(), I::kUndefinedValueRootIndex);
+}
+
+template<typename T>
+void ReturnValue<T>::SetEmptyString() {
+ TYPE_CHECK(T, String);
+ typedef internal::Internals I;
+ *value_ = *I::GetRoot(GetIsolate(), I::kEmptyStringRootIndex);
+}
+
+template<typename T>
+Isolate* ReturnValue<T>::GetIsolate() {
+ // Isolate is always the pointer below the default value on the stack.
+ return *reinterpret_cast<Isolate**>(&value_[-2]);
+}
+
+template<typename T>
+template<typename S>
+void ReturnValue<T>::Set(S* whatever) {
+ // Uncompilable to prevent inadvertent misuse.
+ TYPE_CHECK(S*, Primitive);
+}
+
+template<typename T>
+internal::Object* ReturnValue<T>::GetDefaultValue() {
+ // Default value is always the pointer below value_ on the stack.
+ return value_[-1];
+}
+
+
+template<typename T>
+FunctionCallbackInfo<T>::FunctionCallbackInfo(internal::Object** implicit_args,
+ internal::Object** values,
+ int length,
+ bool is_construct_call)
: implicit_args_(implicit_args),
values_(values),
length_(length),
is_construct_call_(is_construct_call) { }
-Local<Value> Arguments::operator[](int i) const {
- if (i < 0 || length_ <= i) return Local<Value>(*Undefined());
+template<typename T>
+Local<Value> FunctionCallbackInfo<T>::operator[](int i) const {
+ if (i < 0 || length_ <= i) return Local<Value>(*Undefined(GetIsolate()));
return Local<Value>(reinterpret_cast<Value*>(values_ - i));
}
-Local<Function> Arguments::Callee() const {
+template<typename T>
+Local<Function> FunctionCallbackInfo<T>::Callee() const {
return Local<Function>(reinterpret_cast<Function*>(
&implicit_args_[kCalleeIndex]));
}
-Local<Object> Arguments::This() const {
+template<typename T>
+Local<Object> FunctionCallbackInfo<T>::This() const {
return Local<Object>(reinterpret_cast<Object*>(values_ + 1));
}
-Local<Object> Arguments::Holder() const {
+template<typename T>
+Local<Object> FunctionCallbackInfo<T>::Holder() const {
return Local<Object>(reinterpret_cast<Object*>(
&implicit_args_[kHolderIndex]));
}
-Local<Value> Arguments::Data() const {
+template<typename T>
+Local<Value> FunctionCallbackInfo<T>::Data() const {
return Local<Value>(reinterpret_cast<Value*>(&implicit_args_[kDataIndex]));
}
-bool Arguments::IsConstructCall() const {
+template<typename T>
+Isolate* FunctionCallbackInfo<T>::GetIsolate() const {
+ return *reinterpret_cast<Isolate**>(&implicit_args_[kIsolateIndex]);
+}
+
+
+template<typename T>
+ReturnValue<T> FunctionCallbackInfo<T>::GetReturnValue() const {
+ return ReturnValue<T>(&implicit_args_[kReturnValueIndex]);
+}
+
+
+template<typename T>
+bool FunctionCallbackInfo<T>::IsConstructCall() const {
return is_construct_call_;
}
-int Arguments::Length() const {
+template<typename T>
+int FunctionCallbackInfo<T>::Length() const {
return length_;
}
-template <class T>
-Local<T> HandleScope::Close(Handle<T> value) {
- internal::Object** before = reinterpret_cast<internal::Object**>(*value);
- internal::Object** after = RawClose(before);
- return Local<T>(reinterpret_cast<T*>(after));
-}
-
Handle<Value> ScriptOrigin::ResourceName() const {
return resource_name_;
}
@@ -4080,75 +6353,84 @@
}
-Handle<Boolean> Boolean::New(bool value) {
- return value ? True() : False();
+Handle<Boolean> ScriptOrigin::ResourceIsSharedCrossOrigin() const {
+ return resource_is_shared_cross_origin_;
}
-void Template::Set(const char* name, v8::Handle<Data> value) {
- Set(v8::String::New(name), value);
+Handle<Integer> ScriptOrigin::ScriptID() const {
+ return script_id_;
+}
+
+
+ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
+ CachedData* data)
+ : source_string(string),
+ resource_name(origin.ResourceName()),
+ resource_line_offset(origin.ResourceLineOffset()),
+ resource_column_offset(origin.ResourceColumnOffset()),
+ resource_is_shared_cross_origin(origin.ResourceIsSharedCrossOrigin()),
+ cached_data(data) {}
+
+
+ScriptCompiler::Source::Source(Local<String> string,
+ CachedData* data)
+ : source_string(string), cached_data(data) {}
+
+
+ScriptCompiler::Source::~Source() {
+ delete cached_data;
+}
+
+
+const ScriptCompiler::CachedData* ScriptCompiler::Source::GetCachedData()
+ const {
+ return cached_data;
+}
+
+
+Handle<Boolean> Boolean::New(Isolate* isolate, bool value) {
+ return value ? True(isolate) : False(isolate);
+}
+
+
+void Template::Set(Isolate* isolate, const char* name, v8::Handle<Data> value) {
+ Set(v8::String::NewFromUtf8(isolate, name), value);
}
Local<Value> Object::GetInternalField(int index) {
#ifndef V8_ENABLE_CHECKS
- Local<Value> quick_result = UncheckedGetInternalField(index);
- if (!quick_result.IsEmpty()) return quick_result;
-#endif
- return CheckedGetInternalField(index);
-}
-
-
-Local<Value> Object::UncheckedGetInternalField(int index) {
typedef internal::Object O;
+ typedef internal::HeapObject HO;
typedef internal::Internals I;
O* obj = *reinterpret_cast<O**>(this);
+ // Fast path: If the object is a plain JSObject, which is the common case, we
+ // know where to find the internal fields and can return the value directly.
if (I::GetInstanceType(obj) == I::kJSObjectType) {
- // If the object is a plain JSObject, which is the common case,
- // we know where to find the internal fields and can return the
- // value directly.
int offset = I::kJSObjectHeaderSize + (internal::kApiPointerSize * index);
O* value = I::ReadField<O*>(obj, offset);
- O** result = HandleScope::CreateHandle(value);
+ O** result = HandleScope::CreateHandle(reinterpret_cast<HO*>(obj), value);
return Local<Value>(reinterpret_cast<Value*>(result));
- } else {
- return Local<Value>();
}
-}
-
-
-void* External::Unwrap(Handle<v8::Value> obj) {
-#ifdef V8_ENABLE_CHECKS
- return FullUnwrap(obj);
-#else
- return QuickUnwrap(obj);
#endif
+ return SlowGetInternalField(index);
}
-void* External::QuickUnwrap(Handle<v8::Value> wrapper) {
- typedef internal::Object O;
- O* obj = *reinterpret_cast<O**>(const_cast<v8::Value*>(*wrapper));
- return internal::Internals::GetExternalPointer(obj);
-}
-
-
-void* Object::GetPointerFromInternalField(int index) {
+void* Object::GetAlignedPointerFromInternalField(int index) {
+#ifndef V8_ENABLE_CHECKS
typedef internal::Object O;
typedef internal::Internals I;
-
O* obj = *reinterpret_cast<O**>(this);
-
- if (I::GetInstanceType(obj) == I::kJSObjectType) {
- // If the object is a plain JSObject, which is the common case,
- // we know where to find the internal fields and can return the
- // value directly.
+ // Fast path: If the object is a plain JSObject, which is the common case, we
+ // know where to find the internal fields and can return the value directly.
+ if (V8_LIKELY(I::GetInstanceType(obj) == I::kJSObjectType)) {
int offset = I::kJSObjectHeaderSize + (internal::kApiPointerSize * index);
- O* value = I::ReadField<O*>(obj, offset);
- return I::GetExternalPointer(value);
+ return I::ReadField<void*>(obj, offset);
}
-
- return SlowGetPointerFromInternalField(index);
+#endif
+ return SlowGetAlignedPointerFromInternalField(index);
}
@@ -4160,10 +6442,19 @@
}
+Local<String> String::Empty(Isolate* isolate) {
+ typedef internal::Object* S;
+ typedef internal::Internals I;
+ I::CheckInitialized(isolate);
+ S* slot = I::GetRoot(isolate, I::kEmptyStringRootIndex);
+ return Local<String>(reinterpret_cast<String*>(slot));
+}
+
+
String::ExternalStringResource* String::GetExternalStringResource() const {
typedef internal::Object O;
typedef internal::Internals I;
- O* obj = *reinterpret_cast<O**>(const_cast<String*>(this));
+ O* obj = *reinterpret_cast<O* const*>(this);
String::ExternalStringResource* result;
if (I::IsExternalTwoByteString(I::GetInstanceType(obj))) {
void* value = I::ReadField<void*>(obj, I::kStringResourceOffset);
@@ -4178,6 +6469,62 @@
}
+String::ExternalStringResourceBase* String::GetExternalStringResourceBase(
+ String::Encoding* encoding_out) const {
+ typedef internal::Object O;
+ typedef internal::Internals I;
+ O* obj = *reinterpret_cast<O* const*>(this);
+ int type = I::GetInstanceType(obj) & I::kFullStringRepresentationMask;
+ *encoding_out = static_cast<Encoding>(type & I::kStringEncodingMask);
+ ExternalStringResourceBase* resource = NULL;
+ if (type == I::kExternalOneByteRepresentationTag ||
+ type == I::kExternalTwoByteRepresentationTag) {
+ void* value = I::ReadField<void*>(obj, I::kStringResourceOffset);
+ resource = static_cast<ExternalStringResourceBase*>(value);
+ }
+#ifdef V8_ENABLE_CHECKS
+ VerifyExternalStringResourceBase(resource, *encoding_out);
+#endif
+ return resource;
+}
+
+
+bool Value::IsUndefined() const {
+#ifdef V8_ENABLE_CHECKS
+ return FullIsUndefined();
+#else
+ return QuickIsUndefined();
+#endif
+}
+
+bool Value::QuickIsUndefined() const {
+ typedef internal::Object O;
+ typedef internal::Internals I;
+ O* obj = *reinterpret_cast<O* const*>(this);
+ if (!I::HasHeapObjectTag(obj)) return false;
+ if (I::GetInstanceType(obj) != I::kOddballType) return false;
+ return (I::GetOddballKind(obj) == I::kUndefinedOddballKind);
+}
+
+
+bool Value::IsNull() const {
+#ifdef V8_ENABLE_CHECKS
+ return FullIsNull();
+#else
+ return QuickIsNull();
+#endif
+}
+
+bool Value::QuickIsNull() const {
+ typedef internal::Object O;
+ typedef internal::Internals I;
+ O* obj = *reinterpret_cast<O* const*>(this);
+ if (!I::HasHeapObjectTag(obj)) return false;
+ if (I::GetInstanceType(obj) != I::kOddballType) return false;
+ return (I::GetOddballKind(obj) == I::kNullOddballKind);
+}
+
+
bool Value::IsString() const {
#ifdef V8_ENABLE_CHECKS
return FullIsString();
@@ -4189,12 +6536,33 @@
bool Value::QuickIsString() const {
typedef internal::Object O;
typedef internal::Internals I;
- O* obj = *reinterpret_cast<O**>(const_cast<Value*>(this));
+ O* obj = *reinterpret_cast<O* const*>(this);
if (!I::HasHeapObjectTag(obj)) return false;
return (I::GetInstanceType(obj) < I::kFirstNonstringType);
}
+template <class T> Value* Value::Cast(T* value) {
+ return static_cast<Value*>(value);
+}
+
+
+Name* Name::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Name*>(value);
+}
+
+
+Symbol* Symbol::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Symbol*>(value);
+}
+
+
Number* Number::Cast(v8::Value* value) {
#ifdef V8_ENABLE_CHECKS
CheckCast(value);
@@ -4227,6 +6595,14 @@
}
+SymbolObject* SymbolObject::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<SymbolObject*>(value);
+}
+
+
NumberObject* NumberObject::Cast(v8::Value* value) {
#ifdef V8_ENABLE_CHECKS
CheckCast(value);
@@ -4267,6 +6643,126 @@
}
+Promise* Promise::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Promise*>(value);
+}
+
+
+Promise::Resolver* Promise::Resolver::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Promise::Resolver*>(value);
+}
+
+
+ArrayBuffer* ArrayBuffer::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<ArrayBuffer*>(value);
+}
+
+
+ArrayBufferView* ArrayBufferView::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<ArrayBufferView*>(value);
+}
+
+
+TypedArray* TypedArray::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<TypedArray*>(value);
+}
+
+
+Uint8Array* Uint8Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Uint8Array*>(value);
+}
+
+
+Int8Array* Int8Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Int8Array*>(value);
+}
+
+
+Uint16Array* Uint16Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Uint16Array*>(value);
+}
+
+
+Int16Array* Int16Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Int16Array*>(value);
+}
+
+
+Uint32Array* Uint32Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Uint32Array*>(value);
+}
+
+
+Int32Array* Int32Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Int32Array*>(value);
+}
+
+
+Float32Array* Float32Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Float32Array*>(value);
+}
+
+
+Float64Array* Float64Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Float64Array*>(value);
+}
+
+
+Uint8ClampedArray* Uint8ClampedArray::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<Uint8ClampedArray*>(value);
+}
+
+
+DataView* DataView::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+ CheckCast(value);
+#endif
+ return static_cast<DataView*>(value);
+}
+
+
Function* Function::Cast(v8::Value* value) {
#ifdef V8_ENABLE_CHECKS
CheckCast(value);
@@ -4283,18 +6779,161 @@
}
-Local<Value> AccessorInfo::Data() const {
- return Local<Value>(reinterpret_cast<Value*>(&args_[-2]));
+template<typename T>
+Isolate* PropertyCallbackInfo<T>::GetIsolate() const {
+ return *reinterpret_cast<Isolate**>(&args_[kIsolateIndex]);
}
-Local<Object> AccessorInfo::This() const {
- return Local<Object>(reinterpret_cast<Object*>(&args_[0]));
+template<typename T>
+Local<Value> PropertyCallbackInfo<T>::Data() const {
+ return Local<Value>(reinterpret_cast<Value*>(&args_[kDataIndex]));
}
-Local<Object> AccessorInfo::Holder() const {
- return Local<Object>(reinterpret_cast<Object*>(&args_[-1]));
+template<typename T>
+Local<Object> PropertyCallbackInfo<T>::This() const {
+ return Local<Object>(reinterpret_cast<Object*>(&args_[kThisIndex]));
+}
+
+
+template<typename T>
+Local<Object> PropertyCallbackInfo<T>::Holder() const {
+ return Local<Object>(reinterpret_cast<Object*>(&args_[kHolderIndex]));
+}
+
+
+template<typename T>
+ReturnValue<T> PropertyCallbackInfo<T>::GetReturnValue() const {
+ return ReturnValue<T>(&args_[kReturnValueIndex]);
+}
+
+
+Handle<Primitive> Undefined(Isolate* isolate) {
+ typedef internal::Object* S;
+ typedef internal::Internals I;
+ I::CheckInitialized(isolate);
+ S* slot = I::GetRoot(isolate, I::kUndefinedValueRootIndex);
+ return Handle<Primitive>(reinterpret_cast<Primitive*>(slot));
+}
+
+
+Handle<Primitive> Null(Isolate* isolate) {
+ typedef internal::Object* S;
+ typedef internal::Internals I;
+ I::CheckInitialized(isolate);
+ S* slot = I::GetRoot(isolate, I::kNullValueRootIndex);
+ return Handle<Primitive>(reinterpret_cast<Primitive*>(slot));
+}
+
+
+Handle<Boolean> True(Isolate* isolate) {
+ typedef internal::Object* S;
+ typedef internal::Internals I;
+ I::CheckInitialized(isolate);
+ S* slot = I::GetRoot(isolate, I::kTrueValueRootIndex);
+ return Handle<Boolean>(reinterpret_cast<Boolean*>(slot));
+}
+
+
+Handle<Boolean> False(Isolate* isolate) {
+ typedef internal::Object* S;
+ typedef internal::Internals I;
+ I::CheckInitialized(isolate);
+ S* slot = I::GetRoot(isolate, I::kFalseValueRootIndex);
+ return Handle<Boolean>(reinterpret_cast<Boolean*>(slot));
+}
+
+
+void Isolate::SetData(uint32_t slot, void* data) {
+ typedef internal::Internals I;
+ I::SetEmbedderData(this, slot, data);
+}
+
+
+void* Isolate::GetData(uint32_t slot) {
+ typedef internal::Internals I;
+ return I::GetEmbedderData(this, slot);
+}
+
+
+uint32_t Isolate::GetNumberOfDataSlots() {
+ typedef internal::Internals I;
+ return I::kNumIsolateDataSlots;
+}
+
+
+int64_t Isolate::AdjustAmountOfExternalAllocatedMemory(
+ int64_t change_in_bytes) {
+ typedef internal::Internals I;
+ int64_t* amount_of_external_allocated_memory =
+ reinterpret_cast<int64_t*>(reinterpret_cast<uint8_t*>(this) +
+ I::kAmountOfExternalAllocatedMemoryOffset);
+ int64_t* amount_of_external_allocated_memory_at_last_global_gc =
+ reinterpret_cast<int64_t*>(
+ reinterpret_cast<uint8_t*>(this) +
+ I::kAmountOfExternalAllocatedMemoryAtLastGlobalGCOffset);
+ int64_t amount = *amount_of_external_allocated_memory + change_in_bytes;
+ if (change_in_bytes > 0 &&
+ amount - *amount_of_external_allocated_memory_at_last_global_gc >
+ I::kExternalAllocationLimit) {
+ CollectAllGarbage("external memory allocation limit reached.");
+ } else {
+ *amount_of_external_allocated_memory = amount;
+ }
+ return *amount_of_external_allocated_memory;
+}
+
+
+template<typename T>
+void Isolate::SetObjectGroupId(const Persistent<T>& object,
+ UniqueId id) {
+ TYPE_CHECK(Value, T);
+ SetObjectGroupId(reinterpret_cast<v8::internal::Object**>(object.val_), id);
+}
+
+
+template<typename T>
+void Isolate::SetReferenceFromGroup(UniqueId id,
+ const Persistent<T>& object) {
+ TYPE_CHECK(Value, T);
+ SetReferenceFromGroup(id,
+ reinterpret_cast<v8::internal::Object**>(object.val_));
+}
+
+
+template<typename T, typename S>
+void Isolate::SetReference(const Persistent<T>& parent,
+ const Persistent<S>& child) {
+ TYPE_CHECK(Object, T);
+ TYPE_CHECK(Value, S);
+ SetReference(reinterpret_cast<v8::internal::Object**>(parent.val_),
+ reinterpret_cast<v8::internal::Object**>(child.val_));
+}
+
+
+Local<Value> Context::GetEmbedderData(int index) {
+#ifndef V8_ENABLE_CHECKS
+ typedef internal::Object O;
+ typedef internal::HeapObject HO;
+ typedef internal::Internals I;
+ HO* context = *reinterpret_cast<HO**>(this);
+ O** result =
+ HandleScope::CreateHandle(context, I::ReadEmbedderData<O*>(this, index));
+ return Local<Value>(reinterpret_cast<Value*>(result));
+#else
+ return SlowGetEmbedderData(index);
+#endif
+}
+
+
+void* Context::GetAlignedPointerFromEmbedderData(int index) {
+#ifndef V8_ENABLE_CHECKS
+ typedef internal::Internals I;
+ return I::ReadEmbedderData<void*>(this, index);
+#else
+ return SlowGetAlignedPointerFromEmbedderData(index);
+#endif
}
@@ -4313,7 +6952,6 @@
} // namespace v8
-#undef V8EXPORT
#undef TYPE_CHECK