Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/builtins.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7 | #include "src/api.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8 | #include "src/api-natives.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 9 | #include "src/arguments.h" |
| 10 | #include "src/base/once.h" |
| 11 | #include "src/bootstrapper.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 12 | #include "src/dateparser-inl.h" |
| 13 | #include "src/elements.h" |
| 14 | #include "src/frames-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 15 | #include "src/gdb-jit.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 16 | #include "src/ic/handler-compiler.h" |
| 17 | #include "src/ic/ic.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 18 | #include "src/isolate-inl.h" |
| 19 | #include "src/messages.h" |
| 20 | #include "src/profiler/cpu-profiler.h" |
| 21 | #include "src/property-descriptor.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 22 | #include "src/prototype.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 23 | #include "src/string-builder.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 24 | #include "src/vm-state-inl.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 25 | |
| 26 | namespace v8 { |
| 27 | namespace internal { |
| 28 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 29 | namespace { |
| 30 | |
| 31 | // Arguments object passed to C++ builtins. |
| 32 | template <BuiltinExtraArguments extra_args> |
| 33 | class BuiltinArguments : public Arguments { |
| 34 | public: |
| 35 | BuiltinArguments(int length, Object** arguments) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 36 | : Arguments(length, arguments) { |
| 37 | // Check we have at least the receiver. |
| 38 | DCHECK_LE(1, this->length()); |
| 39 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 40 | |
| 41 | Object*& operator[] (int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | DCHECK(index < length()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 43 | return Arguments::operator[](index); |
| 44 | } |
| 45 | |
| 46 | template <class S> Handle<S> at(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | DCHECK(index < length()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 48 | return Arguments::at<S>(index); |
| 49 | } |
| 50 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 51 | Handle<Object> atOrUndefined(Isolate* isolate, int index) { |
| 52 | if (index >= length()) { |
| 53 | return isolate->factory()->undefined_value(); |
| 54 | } |
| 55 | return at<Object>(index); |
| 56 | } |
| 57 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 58 | Handle<Object> receiver() { |
| 59 | return Arguments::at<Object>(0); |
| 60 | } |
| 61 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 62 | Handle<JSFunction> target(); |
| 63 | Handle<HeapObject> new_target(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 64 | |
| 65 | // Gets the total number of arguments including the receiver (but |
| 66 | // excluding extra arguments). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 67 | int length() const; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 68 | }; |
| 69 | |
| 70 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 71 | // Specialize BuiltinArguments for the extra arguments. |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 72 | |
| 73 | template <> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 74 | int BuiltinArguments<BuiltinExtraArguments::kNone>::length() const { |
| 75 | return Arguments::length(); |
| 76 | } |
| 77 | |
| 78 | template <> |
| 79 | int BuiltinArguments<BuiltinExtraArguments::kTarget>::length() const { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 80 | return Arguments::length() - 1; |
| 81 | } |
| 82 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 83 | template <> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 84 | Handle<JSFunction> BuiltinArguments<BuiltinExtraArguments::kTarget>::target() { |
| 85 | return Arguments::at<JSFunction>(Arguments::length() - 1); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 86 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 87 | |
| 88 | template <> |
| 89 | int BuiltinArguments<BuiltinExtraArguments::kNewTarget>::length() const { |
| 90 | return Arguments::length() - 1; |
| 91 | } |
| 92 | |
| 93 | template <> |
| 94 | Handle<HeapObject> |
| 95 | BuiltinArguments<BuiltinExtraArguments::kNewTarget>::new_target() { |
| 96 | return Arguments::at<HeapObject>(Arguments::length() - 1); |
| 97 | } |
| 98 | |
| 99 | template <> |
| 100 | int BuiltinArguments<BuiltinExtraArguments::kTargetAndNewTarget>::length() |
| 101 | const { |
| 102 | return Arguments::length() - 2; |
| 103 | } |
| 104 | |
| 105 | template <> |
| 106 | Handle<JSFunction> |
| 107 | BuiltinArguments<BuiltinExtraArguments::kTargetAndNewTarget>::target() { |
| 108 | return Arguments::at<JSFunction>(Arguments::length() - 2); |
| 109 | } |
| 110 | |
| 111 | template <> |
| 112 | Handle<HeapObject> |
| 113 | BuiltinArguments<BuiltinExtraArguments::kTargetAndNewTarget>::new_target() { |
| 114 | return Arguments::at<HeapObject>(Arguments::length() - 1); |
| 115 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 116 | |
| 117 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 118 | #define DEF_ARG_TYPE(name, spec) \ |
| 119 | typedef BuiltinArguments<BuiltinExtraArguments::spec> name##ArgumentsType; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 120 | BUILTIN_LIST_C(DEF_ARG_TYPE) |
| 121 | #undef DEF_ARG_TYPE |
| 122 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 123 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 124 | // ---------------------------------------------------------------------------- |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 125 | // Support macro for defining builtins in C++. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 126 | // ---------------------------------------------------------------------------- |
| 127 | // |
| 128 | // A builtin function is defined by writing: |
| 129 | // |
| 130 | // BUILTIN(name) { |
| 131 | // ... |
| 132 | // } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 133 | // |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 134 | // In the body of the builtin function the arguments can be accessed |
| 135 | // through the BuiltinArguments object args. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 136 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 137 | #define BUILTIN(name) \ |
| 138 | MUST_USE_RESULT static Object* Builtin_Impl_##name( \ |
| 139 | name##ArgumentsType args, Isolate* isolate); \ |
| 140 | MUST_USE_RESULT static Object* Builtin_##name( \ |
| 141 | int args_length, Object** args_object, Isolate* isolate) { \ |
| 142 | name##ArgumentsType args(args_length, args_object); \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 143 | return Builtin_Impl_##name(args, isolate); \ |
| 144 | } \ |
| 145 | MUST_USE_RESULT static Object* Builtin_Impl_##name( \ |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 146 | name##ArgumentsType args, Isolate* isolate) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 147 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 148 | |
| 149 | // ---------------------------------------------------------------------------- |
| 150 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 151 | |
| 152 | #define CHECK_RECEIVER(Type, name, method) \ |
| 153 | if (!args.receiver()->Is##Type()) { \ |
| 154 | THROW_NEW_ERROR_RETURN_FAILURE( \ |
| 155 | isolate, \ |
| 156 | NewTypeError(MessageTemplate::kIncompatibleMethodReceiver, \ |
| 157 | isolate->factory()->NewStringFromAsciiChecked(method), \ |
| 158 | args.receiver())); \ |
| 159 | } \ |
| 160 | Handle<Type> name = Handle<Type>::cast(args.receiver()) |
| 161 | |
| 162 | |
| 163 | inline bool ClampedToInteger(Object* object, int* out) { |
| 164 | // This is an extended version of ECMA-262 7.1.11 handling signed values |
| 165 | // Try to convert object to a number and clamp values to [kMinInt, kMaxInt] |
| 166 | if (object->IsSmi()) { |
| 167 | *out = Smi::cast(object)->value(); |
| 168 | return true; |
| 169 | } else if (object->IsHeapNumber()) { |
| 170 | double value = HeapNumber::cast(object)->value(); |
| 171 | if (std::isnan(value)) { |
| 172 | *out = 0; |
| 173 | } else if (value > kMaxInt) { |
| 174 | *out = kMaxInt; |
| 175 | } else if (value < kMinInt) { |
| 176 | *out = kMinInt; |
| 177 | } else { |
| 178 | *out = static_cast<int>(value); |
| 179 | } |
| 180 | return true; |
| 181 | } else if (object->IsUndefined() || object->IsNull()) { |
| 182 | *out = 0; |
| 183 | return true; |
| 184 | } else if (object->IsBoolean()) { |
| 185 | *out = object->IsTrue(); |
| 186 | return true; |
| 187 | } |
| 188 | return false; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 189 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 190 | |
| 191 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 192 | inline bool GetSloppyArgumentsLength(Isolate* isolate, Handle<JSObject> object, |
| 193 | int* out) { |
| 194 | Map* arguments_map = isolate->native_context()->sloppy_arguments_map(); |
| 195 | if (object->map() != arguments_map) return false; |
| 196 | DCHECK(object->HasFastElements()); |
| 197 | Object* len_obj = object->InObjectPropertyAt(Heap::kArgumentsLengthIndex); |
| 198 | if (!len_obj->IsSmi()) return false; |
| 199 | *out = Max(0, Smi::cast(len_obj)->value()); |
| 200 | return *out <= object->elements()->length(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 201 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 202 | |
| 203 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 204 | inline bool PrototypeHasNoElements(PrototypeIterator* iter) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 205 | DisallowHeapAllocation no_gc; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 206 | for (; !iter->IsAtEnd(); iter->Advance()) { |
| 207 | if (iter->GetCurrent()->IsJSProxy()) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 208 | JSObject* current = iter->GetCurrent<JSObject>(); |
| 209 | if (current->IsAccessCheckNeeded()) return false; |
| 210 | if (current->HasIndexedInterceptor()) return false; |
| 211 | if (current->elements()->length() != 0) return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 212 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 213 | return true; |
| 214 | } |
| 215 | |
| 216 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 217 | inline bool IsJSArrayFastElementMovingAllowed(Isolate* isolate, |
| 218 | JSArray* receiver) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 219 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 220 | // If the array prototype chain is intact (and free of elements), and if the |
| 221 | // receiver's prototype is the array prototype, then we are done. |
| 222 | Object* prototype = receiver->map()->prototype(); |
| 223 | if (prototype->IsJSArray() && |
| 224 | isolate->is_initial_array_prototype(JSArray::cast(prototype)) && |
| 225 | isolate->IsFastArrayConstructorPrototypeChainIntact()) { |
| 226 | return true; |
| 227 | } |
| 228 | |
| 229 | // Slow case. |
| 230 | PrototypeIterator iter(isolate, receiver); |
| 231 | return PrototypeHasNoElements(&iter); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 235 | // Returns empty handle if not applicable. |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 236 | MUST_USE_RESULT |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 237 | inline MaybeHandle<FixedArrayBase> EnsureJSArrayWithWritableFastElements( |
| 238 | Isolate* isolate, Handle<Object> receiver, Arguments* args, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 239 | int first_added_arg) { |
| 240 | if (!receiver->IsJSArray()) return MaybeHandle<FixedArrayBase>(); |
| 241 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 242 | // If there may be elements accessors in the prototype chain, the fast path |
| 243 | // cannot be used if there arguments to add to the array. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 244 | Heap* heap = isolate->heap(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 245 | if (args != NULL && !IsJSArrayFastElementMovingAllowed(isolate, *array)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 246 | return MaybeHandle<FixedArrayBase>(); |
| 247 | } |
| 248 | if (array->map()->is_observed()) return MaybeHandle<FixedArrayBase>(); |
| 249 | if (!array->map()->is_extensible()) return MaybeHandle<FixedArrayBase>(); |
| 250 | Handle<FixedArrayBase> elms(array->elements(), isolate); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 251 | Map* map = elms->map(); |
| 252 | if (map == heap->fixed_array_map()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 253 | if (args == NULL || array->HasFastObjectElements()) return elms; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 254 | } else if (map == heap->fixed_cow_array_map()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 255 | elms = JSObject::EnsureWritableFastElements(array); |
| 256 | if (args == NULL || array->HasFastObjectElements()) return elms; |
| 257 | } else if (map == heap->fixed_double_array_map()) { |
| 258 | if (args == NULL) return elms; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 259 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 260 | return MaybeHandle<FixedArrayBase>(); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 261 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 262 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 263 | // Adding elements to the array prototype would break code that makes sure |
| 264 | // it has no elements. Handle that elsewhere. |
| 265 | if (isolate->IsAnyInitialArrayPrototype(array)) { |
| 266 | return MaybeHandle<FixedArrayBase>(); |
| 267 | } |
| 268 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 269 | // Need to ensure that the arguments passed in args can be contained in |
| 270 | // the array. |
| 271 | int args_length = args->length(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 272 | if (first_added_arg >= args_length) return handle(array->elements(), isolate); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 273 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 274 | ElementsKind origin_kind = array->map()->elements_kind(); |
| 275 | DCHECK(!IsFastObjectElementsKind(origin_kind)); |
| 276 | ElementsKind target_kind = origin_kind; |
| 277 | { |
| 278 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 279 | int arg_count = args_length - first_added_arg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 280 | Object** arguments = args->arguments() - first_added_arg - (arg_count - 1); |
| 281 | for (int i = 0; i < arg_count; i++) { |
| 282 | Object* arg = arguments[i]; |
| 283 | if (arg->IsHeapObject()) { |
| 284 | if (arg->IsHeapNumber()) { |
| 285 | target_kind = FAST_DOUBLE_ELEMENTS; |
| 286 | } else { |
| 287 | target_kind = FAST_ELEMENTS; |
| 288 | break; |
| 289 | } |
| 290 | } |
| 291 | } |
| 292 | } |
| 293 | if (target_kind != origin_kind) { |
| 294 | JSObject::TransitionElementsKind(array, target_kind); |
| 295 | return handle(array->elements(), isolate); |
| 296 | } |
| 297 | return elms; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 301 | MUST_USE_RESULT static Object* CallJsIntrinsic( |
| 302 | Isolate* isolate, Handle<JSFunction> function, |
| 303 | BuiltinArguments<BuiltinExtraArguments::kNone> args) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 304 | HandleScope handleScope(isolate); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 305 | int argc = args.length() - 1; |
| 306 | ScopedVector<Handle<Object> > argv(argc); |
| 307 | for (int i = 0; i < argc; ++i) { |
| 308 | argv[i] = args.at<Object>(i + 1); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 309 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 310 | Handle<Object> result; |
| 311 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 312 | isolate, result, |
| 313 | Execution::Call(isolate, |
| 314 | function, |
| 315 | args.receiver(), |
| 316 | argc, |
| 317 | argv.start())); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 318 | return *result; |
| 319 | } |
| 320 | |
| 321 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 322 | } // namespace |
| 323 | |
| 324 | |
| 325 | BUILTIN(Illegal) { |
| 326 | UNREACHABLE(); |
| 327 | return isolate->heap()->undefined_value(); // Make compiler happy. |
| 328 | } |
| 329 | |
| 330 | |
| 331 | BUILTIN(EmptyFunction) { return isolate->heap()->undefined_value(); } |
| 332 | |
| 333 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 334 | BUILTIN(ArrayPush) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 335 | HandleScope scope(isolate); |
| 336 | Handle<Object> receiver = args.receiver(); |
| 337 | MaybeHandle<FixedArrayBase> maybe_elms_obj = |
| 338 | EnsureJSArrayWithWritableFastElements(isolate, receiver, &args, 1); |
| 339 | Handle<FixedArrayBase> elms_obj; |
| 340 | if (!maybe_elms_obj.ToHandle(&elms_obj)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 341 | return CallJsIntrinsic(isolate, isolate->array_push(), args); |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 342 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 343 | // Fast Elements Path |
| 344 | int push_size = args.length() - 1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 345 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 346 | int len = Smi::cast(array->length())->value(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 347 | if (push_size == 0) { |
| 348 | return Smi::FromInt(len); |
| 349 | } |
| 350 | if (push_size > 0 && |
| 351 | JSArray::WouldChangeReadOnlyLength(array, len + push_size)) { |
| 352 | return CallJsIntrinsic(isolate, isolate->array_push(), args); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 353 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 354 | DCHECK(!array->map()->is_observed()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 355 | ElementsAccessor* accessor = array->GetElementsAccessor(); |
| 356 | int new_length = accessor->Push(array, elms_obj, &args, push_size); |
| 357 | return Smi::FromInt(new_length); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 358 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 359 | |
| 360 | |
| 361 | BUILTIN(ArrayPop) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 362 | HandleScope scope(isolate); |
| 363 | Handle<Object> receiver = args.receiver(); |
| 364 | MaybeHandle<FixedArrayBase> maybe_elms_obj = |
| 365 | EnsureJSArrayWithWritableFastElements(isolate, receiver, NULL, 0); |
| 366 | Handle<FixedArrayBase> elms_obj; |
| 367 | if (!maybe_elms_obj.ToHandle(&elms_obj)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 368 | return CallJsIntrinsic(isolate, isolate->array_pop(), args); |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 369 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 370 | |
| 371 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 372 | DCHECK(!array->map()->is_observed()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 373 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 374 | uint32_t len = static_cast<uint32_t>(Smi::cast(array->length())->value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 375 | if (len == 0) return isolate->heap()->undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 376 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 377 | if (JSArray::HasReadOnlyLength(array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 378 | return CallJsIntrinsic(isolate, isolate->array_pop(), args); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 379 | } |
| 380 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 381 | Handle<Object> result; |
| 382 | if (IsJSArrayFastElementMovingAllowed(isolate, JSArray::cast(*receiver))) { |
| 383 | // Fast Elements Path |
| 384 | result = array->GetElementsAccessor()->Pop(array, elms_obj); |
| 385 | } else { |
| 386 | // Use Slow Lookup otherwise |
| 387 | uint32_t new_length = len - 1; |
| 388 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 389 | isolate, result, Object::GetElement(isolate, array, new_length)); |
| 390 | JSArray::SetLength(array, new_length); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 391 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 392 | return *result; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 393 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 394 | |
| 395 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 396 | BUILTIN(ArrayShift) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 397 | HandleScope scope(isolate); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 398 | Heap* heap = isolate->heap(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 399 | Handle<Object> receiver = args.receiver(); |
| 400 | MaybeHandle<FixedArrayBase> maybe_elms_obj = |
| 401 | EnsureJSArrayWithWritableFastElements(isolate, receiver, NULL, 0); |
| 402 | Handle<FixedArrayBase> elms_obj; |
| 403 | if (!maybe_elms_obj.ToHandle(&elms_obj) || |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 404 | !IsJSArrayFastElementMovingAllowed(isolate, JSArray::cast(*receiver))) { |
| 405 | return CallJsIntrinsic(isolate, isolate->array_shift(), args); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 406 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 407 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 408 | DCHECK(!array->map()->is_observed()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 409 | |
| 410 | int len = Smi::cast(array->length())->value(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 411 | if (len == 0) return heap->undefined_value(); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 412 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 413 | if (JSArray::HasReadOnlyLength(array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 414 | return CallJsIntrinsic(isolate, isolate->array_shift(), args); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 415 | } |
| 416 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 417 | Handle<Object> first = array->GetElementsAccessor()->Shift(array, elms_obj); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 418 | return *first; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | |
| 422 | BUILTIN(ArrayUnshift) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 423 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 424 | Handle<Object> receiver = args.receiver(); |
| 425 | MaybeHandle<FixedArrayBase> maybe_elms_obj = |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 426 | EnsureJSArrayWithWritableFastElements(isolate, receiver, &args, 1); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 427 | Handle<FixedArrayBase> elms_obj; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 428 | if (!maybe_elms_obj.ToHandle(&elms_obj)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 429 | return CallJsIntrinsic(isolate, isolate->array_unshift(), args); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 430 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 431 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 432 | DCHECK(!array->map()->is_observed()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 433 | int to_add = args.length() - 1; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 434 | if (to_add == 0) { |
| 435 | return array->length(); |
| 436 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 437 | // Currently fixed arrays cannot grow too big, so |
| 438 | // we should never hit this case. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 439 | DCHECK(to_add <= (Smi::kMaxValue - Smi::cast(array->length())->value())); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 440 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 441 | if (to_add > 0 && JSArray::HasReadOnlyLength(array)) { |
| 442 | return CallJsIntrinsic(isolate, isolate->array_unshift(), args); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 443 | } |
| 444 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 445 | ElementsAccessor* accessor = array->GetElementsAccessor(); |
| 446 | int new_length = accessor->Unshift(array, elms_obj, &args, to_add); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 447 | return Smi::FromInt(new_length); |
| 448 | } |
| 449 | |
| 450 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 451 | BUILTIN(ArraySlice) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 452 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 453 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 454 | Handle<JSObject> object; |
| 455 | Handle<FixedArrayBase> elms_obj; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 456 | int len = -1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 457 | int relative_start = 0; |
| 458 | int relative_end = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 459 | bool is_sloppy_arguments = false; |
| 460 | |
| 461 | // TODO(littledan): Look up @@species only once, not once here and |
| 462 | // again in the JS builtin. Pass the species out? |
| 463 | Handle<Object> species; |
| 464 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 465 | isolate, species, Object::ArraySpeciesConstructor(isolate, receiver)); |
| 466 | if (*species != isolate->context()->native_context()->array_function()) { |
| 467 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
| 468 | } |
| 469 | if (receiver->IsJSArray()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 470 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 471 | JSArray* array = JSArray::cast(*receiver); |
| 472 | if (!array->HasFastElements() || |
| 473 | !IsJSArrayFastElementMovingAllowed(isolate, array)) { |
| 474 | AllowHeapAllocation allow_allocation; |
| 475 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 476 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 477 | len = Smi::cast(array->length())->value(); |
| 478 | object = Handle<JSObject>::cast(receiver); |
| 479 | elms_obj = handle(array->elements(), isolate); |
| 480 | } else if (receiver->IsJSObject() && |
| 481 | GetSloppyArgumentsLength(isolate, Handle<JSObject>::cast(receiver), |
| 482 | &len)) { |
| 483 | // Array.prototype.slice(arguments, ...) is quite a common idiom |
| 484 | // (notably more than 50% of invocations in Web apps). |
| 485 | // Treat it in C++ as well. |
| 486 | is_sloppy_arguments = true; |
| 487 | object = Handle<JSObject>::cast(receiver); |
| 488 | elms_obj = handle(object->elements(), isolate); |
| 489 | } else { |
| 490 | AllowHeapAllocation allow_allocation; |
| 491 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
| 492 | } |
| 493 | DCHECK(len >= 0); |
| 494 | int argument_count = args.length() - 1; |
| 495 | // Note carefully chosen defaults---if argument is missing, |
| 496 | // it's undefined which gets converted to 0 for relative_start |
| 497 | // and to len for relative_end. |
| 498 | relative_start = 0; |
| 499 | relative_end = len; |
| 500 | if (argument_count > 0) { |
| 501 | DisallowHeapAllocation no_gc; |
| 502 | if (!ClampedToInteger(args[1], &relative_start)) { |
| 503 | AllowHeapAllocation allow_allocation; |
| 504 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
| 505 | } |
| 506 | if (argument_count > 1) { |
| 507 | Object* end_arg = args[2]; |
| 508 | // slice handles the end_arg specially |
| 509 | if (end_arg->IsUndefined()) { |
| 510 | relative_end = len; |
| 511 | } else if (!ClampedToInteger(end_arg, &relative_end)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 512 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 513 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 514 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 515 | } |
| 516 | } |
| 517 | |
| 518 | // ECMAScript 232, 3rd Edition, Section 15.4.4.10, step 6. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 519 | uint32_t actual_start = (relative_start < 0) ? Max(len + relative_start, 0) |
| 520 | : Min(relative_start, len); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 521 | |
| 522 | // ECMAScript 232, 3rd Edition, Section 15.4.4.10, step 8. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 523 | uint32_t actual_end = |
| 524 | (relative_end < 0) ? Max(len + relative_end, 0) : Min(relative_end, len); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 525 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 526 | if (actual_end <= actual_start) { |
| 527 | Handle<JSArray> result_array = isolate->factory()->NewJSArray( |
| 528 | GetPackedElementsKind(object->GetElementsKind()), 0, 0); |
| 529 | return *result_array; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 530 | } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 531 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 532 | ElementsAccessor* accessor = object->GetElementsAccessor(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 533 | if (is_sloppy_arguments && |
| 534 | !accessor->IsPacked(object, elms_obj, actual_start, actual_end)) { |
| 535 | // Don't deal with arguments with holes in C++ |
| 536 | AllowHeapAllocation allow_allocation; |
| 537 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
| 538 | } |
| 539 | Handle<JSArray> result_array = |
| 540 | accessor->Slice(object, elms_obj, actual_start, actual_end); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 541 | return *result_array; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 542 | } |
| 543 | |
| 544 | |
| 545 | BUILTIN(ArraySplice) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 546 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 547 | Handle<Object> receiver = args.receiver(); |
| 548 | MaybeHandle<FixedArrayBase> maybe_elms_obj = |
| 549 | EnsureJSArrayWithWritableFastElements(isolate, receiver, &args, 3); |
| 550 | Handle<FixedArrayBase> elms_obj; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 551 | if (!maybe_elms_obj.ToHandle(&elms_obj)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 552 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
| 553 | } |
| 554 | // TODO(littledan): Look up @@species only once, not once here and |
| 555 | // again in the JS builtin. Pass the species out? |
| 556 | Handle<Object> species; |
| 557 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 558 | isolate, species, Object::ArraySpeciesConstructor(isolate, receiver)); |
| 559 | if (*species != isolate->context()->native_context()->array_function()) { |
| 560 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 561 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 562 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 563 | DCHECK(!array->map()->is_observed()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 564 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 565 | int argument_count = args.length() - 1; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 566 | int relative_start = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 567 | if (argument_count > 0) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 568 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 569 | if (!ClampedToInteger(args[1], &relative_start)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 570 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 571 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 572 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 573 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 574 | int len = Smi::cast(array->length())->value(); |
| 575 | // clip relative start to [0, len] |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 576 | int actual_start = (relative_start < 0) ? Max(len + relative_start, 0) |
| 577 | : Min(relative_start, len); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 578 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 579 | int actual_delete_count; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 580 | if (argument_count == 1) { |
| 581 | // SpiderMonkey, TraceMonkey and JSC treat the case where no delete count is |
| 582 | // given as a request to delete all the elements from the start. |
| 583 | // And it differs from the case of undefined delete count. |
| 584 | // This does not follow ECMA-262, but we do the same for compatibility. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 585 | DCHECK(len - actual_start >= 0); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 586 | actual_delete_count = len - actual_start; |
| 587 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 588 | int delete_count = 0; |
| 589 | DisallowHeapAllocation no_gc; |
| 590 | if (argument_count > 1) { |
| 591 | if (!ClampedToInteger(args[2], &delete_count)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 592 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 593 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 594 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 595 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 596 | actual_delete_count = Min(Max(delete_count, 0), len - actual_start); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 597 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 598 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 599 | int add_count = (argument_count > 1) ? (argument_count - 2) : 0; |
| 600 | int new_length = len - actual_delete_count + add_count; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 601 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 602 | if (new_length != len && JSArray::HasReadOnlyLength(array)) { |
| 603 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 604 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 605 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 606 | ElementsAccessor* accessor = array->GetElementsAccessor(); |
| 607 | Handle<JSArray> result_array = accessor->Splice( |
| 608 | array, elms_obj, actual_start, actual_delete_count, &args, add_count); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 609 | return *result_array; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 613 | // Array Concat ------------------------------------------------------------- |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 614 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 615 | namespace { |
| 616 | |
| 617 | /** |
| 618 | * A simple visitor visits every element of Array's. |
| 619 | * The backend storage can be a fixed array for fast elements case, |
| 620 | * or a dictionary for sparse array. Since Dictionary is a subtype |
| 621 | * of FixedArray, the class can be used by both fast and slow cases. |
| 622 | * The second parameter of the constructor, fast_elements, specifies |
| 623 | * whether the storage is a FixedArray or Dictionary. |
| 624 | * |
| 625 | * An index limit is used to deal with the situation that a result array |
| 626 | * length overflows 32-bit non-negative integer. |
| 627 | */ |
| 628 | class ArrayConcatVisitor { |
| 629 | public: |
| 630 | ArrayConcatVisitor(Isolate* isolate, Handle<FixedArray> storage, |
| 631 | bool fast_elements) |
| 632 | : isolate_(isolate), |
| 633 | storage_(Handle<FixedArray>::cast( |
| 634 | isolate->global_handles()->Create(*storage))), |
| 635 | index_offset_(0u), |
| 636 | bit_field_(FastElementsField::encode(fast_elements) | |
| 637 | ExceedsLimitField::encode(false)) {} |
| 638 | |
| 639 | ~ArrayConcatVisitor() { clear_storage(); } |
| 640 | |
| 641 | void visit(uint32_t i, Handle<Object> elm) { |
| 642 | if (i >= JSObject::kMaxElementCount - index_offset_) { |
| 643 | set_exceeds_array_limit(true); |
| 644 | return; |
| 645 | } |
| 646 | uint32_t index = index_offset_ + i; |
| 647 | |
| 648 | if (fast_elements()) { |
| 649 | if (index < static_cast<uint32_t>(storage_->length())) { |
| 650 | storage_->set(index, *elm); |
| 651 | return; |
| 652 | } |
| 653 | // Our initial estimate of length was foiled, possibly by |
| 654 | // getters on the arrays increasing the length of later arrays |
| 655 | // during iteration. |
| 656 | // This shouldn't happen in anything but pathological cases. |
| 657 | SetDictionaryMode(); |
| 658 | // Fall-through to dictionary mode. |
| 659 | } |
| 660 | DCHECK(!fast_elements()); |
| 661 | Handle<SeededNumberDictionary> dict( |
| 662 | SeededNumberDictionary::cast(*storage_)); |
| 663 | // The object holding this backing store has just been allocated, so |
| 664 | // it cannot yet be used as a prototype. |
| 665 | Handle<SeededNumberDictionary> result = |
| 666 | SeededNumberDictionary::AtNumberPut(dict, index, elm, false); |
| 667 | if (!result.is_identical_to(dict)) { |
| 668 | // Dictionary needed to grow. |
| 669 | clear_storage(); |
| 670 | set_storage(*result); |
| 671 | } |
| 672 | } |
| 673 | |
| 674 | void increase_index_offset(uint32_t delta) { |
| 675 | if (JSObject::kMaxElementCount - index_offset_ < delta) { |
| 676 | index_offset_ = JSObject::kMaxElementCount; |
| 677 | } else { |
| 678 | index_offset_ += delta; |
| 679 | } |
| 680 | // If the initial length estimate was off (see special case in visit()), |
| 681 | // but the array blowing the limit didn't contain elements beyond the |
| 682 | // provided-for index range, go to dictionary mode now. |
| 683 | if (fast_elements() && |
| 684 | index_offset_ > |
| 685 | static_cast<uint32_t>(FixedArrayBase::cast(*storage_)->length())) { |
| 686 | SetDictionaryMode(); |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | bool exceeds_array_limit() const { |
| 691 | return ExceedsLimitField::decode(bit_field_); |
| 692 | } |
| 693 | |
| 694 | Handle<JSArray> ToArray() { |
| 695 | Handle<JSArray> array = isolate_->factory()->NewJSArray(0); |
| 696 | Handle<Object> length = |
| 697 | isolate_->factory()->NewNumber(static_cast<double>(index_offset_)); |
| 698 | Handle<Map> map = JSObject::GetElementsTransitionMap( |
| 699 | array, fast_elements() ? FAST_HOLEY_ELEMENTS : DICTIONARY_ELEMENTS); |
| 700 | array->set_map(*map); |
| 701 | array->set_length(*length); |
| 702 | array->set_elements(*storage_); |
| 703 | return array; |
| 704 | } |
| 705 | |
| 706 | private: |
| 707 | // Convert storage to dictionary mode. |
| 708 | void SetDictionaryMode() { |
| 709 | DCHECK(fast_elements()); |
| 710 | Handle<FixedArray> current_storage(*storage_); |
| 711 | Handle<SeededNumberDictionary> slow_storage( |
| 712 | SeededNumberDictionary::New(isolate_, current_storage->length())); |
| 713 | uint32_t current_length = static_cast<uint32_t>(current_storage->length()); |
| 714 | for (uint32_t i = 0; i < current_length; i++) { |
| 715 | HandleScope loop_scope(isolate_); |
| 716 | Handle<Object> element(current_storage->get(i), isolate_); |
| 717 | if (!element->IsTheHole()) { |
| 718 | // The object holding this backing store has just been allocated, so |
| 719 | // it cannot yet be used as a prototype. |
| 720 | Handle<SeededNumberDictionary> new_storage = |
| 721 | SeededNumberDictionary::AtNumberPut(slow_storage, i, element, |
| 722 | false); |
| 723 | if (!new_storage.is_identical_to(slow_storage)) { |
| 724 | slow_storage = loop_scope.CloseAndEscape(new_storage); |
| 725 | } |
| 726 | } |
| 727 | } |
| 728 | clear_storage(); |
| 729 | set_storage(*slow_storage); |
| 730 | set_fast_elements(false); |
| 731 | } |
| 732 | |
| 733 | inline void clear_storage() { |
| 734 | GlobalHandles::Destroy(Handle<Object>::cast(storage_).location()); |
| 735 | } |
| 736 | |
| 737 | inline void set_storage(FixedArray* storage) { |
| 738 | storage_ = |
| 739 | Handle<FixedArray>::cast(isolate_->global_handles()->Create(storage)); |
| 740 | } |
| 741 | |
| 742 | class FastElementsField : public BitField<bool, 0, 1> {}; |
| 743 | class ExceedsLimitField : public BitField<bool, 1, 1> {}; |
| 744 | |
| 745 | bool fast_elements() const { return FastElementsField::decode(bit_field_); } |
| 746 | void set_fast_elements(bool fast) { |
| 747 | bit_field_ = FastElementsField::update(bit_field_, fast); |
| 748 | } |
| 749 | void set_exceeds_array_limit(bool exceeds) { |
| 750 | bit_field_ = ExceedsLimitField::update(bit_field_, exceeds); |
| 751 | } |
| 752 | |
| 753 | Isolate* isolate_; |
| 754 | Handle<FixedArray> storage_; // Always a global handle. |
| 755 | // Index after last seen index. Always less than or equal to |
| 756 | // JSObject::kMaxElementCount. |
| 757 | uint32_t index_offset_; |
| 758 | uint32_t bit_field_; |
| 759 | }; |
| 760 | |
| 761 | |
| 762 | uint32_t EstimateElementCount(Handle<JSArray> array) { |
| 763 | uint32_t length = static_cast<uint32_t>(array->length()->Number()); |
| 764 | int element_count = 0; |
| 765 | switch (array->GetElementsKind()) { |
| 766 | case FAST_SMI_ELEMENTS: |
| 767 | case FAST_HOLEY_SMI_ELEMENTS: |
| 768 | case FAST_ELEMENTS: |
| 769 | case FAST_HOLEY_ELEMENTS: { |
| 770 | // Fast elements can't have lengths that are not representable by |
| 771 | // a 32-bit signed integer. |
| 772 | DCHECK(static_cast<int32_t>(FixedArray::kMaxLength) >= 0); |
| 773 | int fast_length = static_cast<int>(length); |
| 774 | Handle<FixedArray> elements(FixedArray::cast(array->elements())); |
| 775 | for (int i = 0; i < fast_length; i++) { |
| 776 | if (!elements->get(i)->IsTheHole()) element_count++; |
| 777 | } |
| 778 | break; |
| 779 | } |
| 780 | case FAST_DOUBLE_ELEMENTS: |
| 781 | case FAST_HOLEY_DOUBLE_ELEMENTS: { |
| 782 | // Fast elements can't have lengths that are not representable by |
| 783 | // a 32-bit signed integer. |
| 784 | DCHECK(static_cast<int32_t>(FixedDoubleArray::kMaxLength) >= 0); |
| 785 | int fast_length = static_cast<int>(length); |
| 786 | if (array->elements()->IsFixedArray()) { |
| 787 | DCHECK(FixedArray::cast(array->elements())->length() == 0); |
| 788 | break; |
| 789 | } |
| 790 | Handle<FixedDoubleArray> elements( |
| 791 | FixedDoubleArray::cast(array->elements())); |
| 792 | for (int i = 0; i < fast_length; i++) { |
| 793 | if (!elements->is_the_hole(i)) element_count++; |
| 794 | } |
| 795 | break; |
| 796 | } |
| 797 | case DICTIONARY_ELEMENTS: { |
| 798 | Handle<SeededNumberDictionary> dictionary( |
| 799 | SeededNumberDictionary::cast(array->elements())); |
| 800 | int capacity = dictionary->Capacity(); |
| 801 | for (int i = 0; i < capacity; i++) { |
| 802 | Handle<Object> key(dictionary->KeyAt(i), array->GetIsolate()); |
| 803 | if (dictionary->IsKey(*key)) { |
| 804 | element_count++; |
| 805 | } |
| 806 | } |
| 807 | break; |
| 808 | } |
| 809 | case FAST_SLOPPY_ARGUMENTS_ELEMENTS: |
| 810 | case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: |
| 811 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) case TYPE##_ELEMENTS: |
| 812 | |
| 813 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 814 | #undef TYPED_ARRAY_CASE |
| 815 | // External arrays are always dense. |
| 816 | return length; |
| 817 | } |
| 818 | // As an estimate, we assume that the prototype doesn't contain any |
| 819 | // inherited elements. |
| 820 | return element_count; |
| 821 | } |
| 822 | |
| 823 | |
| 824 | template <class ExternalArrayClass, class ElementType> |
| 825 | void IterateTypedArrayElements(Isolate* isolate, Handle<JSObject> receiver, |
| 826 | bool elements_are_ints, |
| 827 | bool elements_are_guaranteed_smis, |
| 828 | ArrayConcatVisitor* visitor) { |
| 829 | Handle<ExternalArrayClass> array( |
| 830 | ExternalArrayClass::cast(receiver->elements())); |
| 831 | uint32_t len = static_cast<uint32_t>(array->length()); |
| 832 | |
| 833 | DCHECK(visitor != NULL); |
| 834 | if (elements_are_ints) { |
| 835 | if (elements_are_guaranteed_smis) { |
| 836 | for (uint32_t j = 0; j < len; j++) { |
| 837 | HandleScope loop_scope(isolate); |
| 838 | Handle<Smi> e(Smi::FromInt(static_cast<int>(array->get_scalar(j))), |
| 839 | isolate); |
| 840 | visitor->visit(j, e); |
| 841 | } |
| 842 | } else { |
| 843 | for (uint32_t j = 0; j < len; j++) { |
| 844 | HandleScope loop_scope(isolate); |
| 845 | int64_t val = static_cast<int64_t>(array->get_scalar(j)); |
| 846 | if (Smi::IsValid(static_cast<intptr_t>(val))) { |
| 847 | Handle<Smi> e(Smi::FromInt(static_cast<int>(val)), isolate); |
| 848 | visitor->visit(j, e); |
| 849 | } else { |
| 850 | Handle<Object> e = |
| 851 | isolate->factory()->NewNumber(static_cast<ElementType>(val)); |
| 852 | visitor->visit(j, e); |
| 853 | } |
| 854 | } |
| 855 | } |
| 856 | } else { |
| 857 | for (uint32_t j = 0; j < len; j++) { |
| 858 | HandleScope loop_scope(isolate); |
| 859 | Handle<Object> e = isolate->factory()->NewNumber(array->get_scalar(j)); |
| 860 | visitor->visit(j, e); |
| 861 | } |
| 862 | } |
| 863 | } |
| 864 | |
| 865 | |
| 866 | // Used for sorting indices in a List<uint32_t>. |
| 867 | int compareUInt32(const uint32_t* ap, const uint32_t* bp) { |
| 868 | uint32_t a = *ap; |
| 869 | uint32_t b = *bp; |
| 870 | return (a == b) ? 0 : (a < b) ? -1 : 1; |
| 871 | } |
| 872 | |
| 873 | |
| 874 | void CollectElementIndices(Handle<JSObject> object, uint32_t range, |
| 875 | List<uint32_t>* indices) { |
| 876 | Isolate* isolate = object->GetIsolate(); |
| 877 | ElementsKind kind = object->GetElementsKind(); |
| 878 | switch (kind) { |
| 879 | case FAST_SMI_ELEMENTS: |
| 880 | case FAST_ELEMENTS: |
| 881 | case FAST_HOLEY_SMI_ELEMENTS: |
| 882 | case FAST_HOLEY_ELEMENTS: { |
| 883 | Handle<FixedArray> elements(FixedArray::cast(object->elements())); |
| 884 | uint32_t length = static_cast<uint32_t>(elements->length()); |
| 885 | if (range < length) length = range; |
| 886 | for (uint32_t i = 0; i < length; i++) { |
| 887 | if (!elements->get(i)->IsTheHole()) { |
| 888 | indices->Add(i); |
| 889 | } |
| 890 | } |
| 891 | break; |
| 892 | } |
| 893 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 894 | case FAST_DOUBLE_ELEMENTS: { |
| 895 | if (object->elements()->IsFixedArray()) { |
| 896 | DCHECK(object->elements()->length() == 0); |
| 897 | break; |
| 898 | } |
| 899 | Handle<FixedDoubleArray> elements( |
| 900 | FixedDoubleArray::cast(object->elements())); |
| 901 | uint32_t length = static_cast<uint32_t>(elements->length()); |
| 902 | if (range < length) length = range; |
| 903 | for (uint32_t i = 0; i < length; i++) { |
| 904 | if (!elements->is_the_hole(i)) { |
| 905 | indices->Add(i); |
| 906 | } |
| 907 | } |
| 908 | break; |
| 909 | } |
| 910 | case DICTIONARY_ELEMENTS: { |
| 911 | Handle<SeededNumberDictionary> dict( |
| 912 | SeededNumberDictionary::cast(object->elements())); |
| 913 | uint32_t capacity = dict->Capacity(); |
| 914 | for (uint32_t j = 0; j < capacity; j++) { |
| 915 | HandleScope loop_scope(isolate); |
| 916 | Handle<Object> k(dict->KeyAt(j), isolate); |
| 917 | if (dict->IsKey(*k)) { |
| 918 | DCHECK(k->IsNumber()); |
| 919 | uint32_t index = static_cast<uint32_t>(k->Number()); |
| 920 | if (index < range) { |
| 921 | indices->Add(index); |
| 922 | } |
| 923 | } |
| 924 | } |
| 925 | break; |
| 926 | } |
| 927 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) case TYPE##_ELEMENTS: |
| 928 | |
| 929 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 930 | #undef TYPED_ARRAY_CASE |
| 931 | { |
| 932 | uint32_t length = static_cast<uint32_t>( |
| 933 | FixedArrayBase::cast(object->elements())->length()); |
| 934 | if (range <= length) { |
| 935 | length = range; |
| 936 | // We will add all indices, so we might as well clear it first |
| 937 | // and avoid duplicates. |
| 938 | indices->Clear(); |
| 939 | } |
| 940 | for (uint32_t i = 0; i < length; i++) { |
| 941 | indices->Add(i); |
| 942 | } |
| 943 | if (length == range) return; // All indices accounted for already. |
| 944 | break; |
| 945 | } |
| 946 | case FAST_SLOPPY_ARGUMENTS_ELEMENTS: |
| 947 | case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: { |
| 948 | ElementsAccessor* accessor = object->GetElementsAccessor(); |
| 949 | for (uint32_t i = 0; i < range; i++) { |
| 950 | if (accessor->HasElement(object, i)) { |
| 951 | indices->Add(i); |
| 952 | } |
| 953 | } |
| 954 | break; |
| 955 | } |
| 956 | } |
| 957 | |
| 958 | PrototypeIterator iter(isolate, object); |
| 959 | if (!iter.IsAtEnd()) { |
| 960 | // The prototype will usually have no inherited element indices, |
| 961 | // but we have to check. |
| 962 | CollectElementIndices(PrototypeIterator::GetCurrent<JSObject>(iter), range, |
| 963 | indices); |
| 964 | } |
| 965 | } |
| 966 | |
| 967 | |
| 968 | bool IterateElementsSlow(Isolate* isolate, Handle<JSReceiver> receiver, |
| 969 | uint32_t length, ArrayConcatVisitor* visitor) { |
| 970 | for (uint32_t i = 0; i < length; ++i) { |
| 971 | HandleScope loop_scope(isolate); |
| 972 | Maybe<bool> maybe = JSReceiver::HasElement(receiver, i); |
| 973 | if (!maybe.IsJust()) return false; |
| 974 | if (maybe.FromJust()) { |
| 975 | Handle<Object> element_value; |
| 976 | ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, element_value, |
| 977 | Object::GetElement(isolate, receiver, i), |
| 978 | false); |
| 979 | visitor->visit(i, element_value); |
| 980 | } |
| 981 | } |
| 982 | visitor->increase_index_offset(length); |
| 983 | return true; |
| 984 | } |
| 985 | |
| 986 | |
| 987 | /** |
| 988 | * A helper function that visits "array" elements of a JSReceiver in numerical |
| 989 | * order. |
| 990 | * |
| 991 | * The visitor argument called for each existing element in the array |
| 992 | * with the element index and the element's value. |
| 993 | * Afterwards it increments the base-index of the visitor by the array |
| 994 | * length. |
| 995 | * Returns false if any access threw an exception, otherwise true. |
| 996 | */ |
| 997 | bool IterateElements(Isolate* isolate, Handle<JSReceiver> receiver, |
| 998 | ArrayConcatVisitor* visitor) { |
| 999 | uint32_t length = 0; |
| 1000 | |
| 1001 | if (receiver->IsJSArray()) { |
| 1002 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 1003 | length = static_cast<uint32_t>(array->length()->Number()); |
| 1004 | } else { |
| 1005 | Handle<Object> val; |
| 1006 | Handle<Object> key = isolate->factory()->length_string(); |
| 1007 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1008 | isolate, val, Runtime::GetObjectProperty(isolate, receiver, key), |
| 1009 | false); |
| 1010 | ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, val, |
| 1011 | Object::ToLength(isolate, val), false); |
| 1012 | // TODO(caitp): Support larger element indexes (up to 2^53-1). |
| 1013 | if (!val->ToUint32(&length)) { |
| 1014 | length = 0; |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | if (!(receiver->IsJSArray() || receiver->IsJSTypedArray())) { |
| 1019 | // For classes which are not known to be safe to access via elements alone, |
| 1020 | // use the slow case. |
| 1021 | return IterateElementsSlow(isolate, receiver, length, visitor); |
| 1022 | } |
| 1023 | Handle<JSObject> array = Handle<JSObject>::cast(receiver); |
| 1024 | |
| 1025 | switch (array->GetElementsKind()) { |
| 1026 | case FAST_SMI_ELEMENTS: |
| 1027 | case FAST_ELEMENTS: |
| 1028 | case FAST_HOLEY_SMI_ELEMENTS: |
| 1029 | case FAST_HOLEY_ELEMENTS: { |
| 1030 | // Run through the elements FixedArray and use HasElement and GetElement |
| 1031 | // to check the prototype for missing elements. |
| 1032 | Handle<FixedArray> elements(FixedArray::cast(array->elements())); |
| 1033 | int fast_length = static_cast<int>(length); |
| 1034 | DCHECK(fast_length <= elements->length()); |
| 1035 | for (int j = 0; j < fast_length; j++) { |
| 1036 | HandleScope loop_scope(isolate); |
| 1037 | Handle<Object> element_value(elements->get(j), isolate); |
| 1038 | if (!element_value->IsTheHole()) { |
| 1039 | visitor->visit(j, element_value); |
| 1040 | } else { |
| 1041 | Maybe<bool> maybe = JSReceiver::HasElement(array, j); |
| 1042 | if (!maybe.IsJust()) return false; |
| 1043 | if (maybe.FromJust()) { |
| 1044 | // Call GetElement on array, not its prototype, or getters won't |
| 1045 | // have the correct receiver. |
| 1046 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1047 | isolate, element_value, Object::GetElement(isolate, array, j), |
| 1048 | false); |
| 1049 | visitor->visit(j, element_value); |
| 1050 | } |
| 1051 | } |
| 1052 | } |
| 1053 | break; |
| 1054 | } |
| 1055 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 1056 | case FAST_DOUBLE_ELEMENTS: { |
| 1057 | // Empty array is FixedArray but not FixedDoubleArray. |
| 1058 | if (length == 0) break; |
| 1059 | // Run through the elements FixedArray and use HasElement and GetElement |
| 1060 | // to check the prototype for missing elements. |
| 1061 | if (array->elements()->IsFixedArray()) { |
| 1062 | DCHECK(array->elements()->length() == 0); |
| 1063 | break; |
| 1064 | } |
| 1065 | Handle<FixedDoubleArray> elements( |
| 1066 | FixedDoubleArray::cast(array->elements())); |
| 1067 | int fast_length = static_cast<int>(length); |
| 1068 | DCHECK(fast_length <= elements->length()); |
| 1069 | for (int j = 0; j < fast_length; j++) { |
| 1070 | HandleScope loop_scope(isolate); |
| 1071 | if (!elements->is_the_hole(j)) { |
| 1072 | double double_value = elements->get_scalar(j); |
| 1073 | Handle<Object> element_value = |
| 1074 | isolate->factory()->NewNumber(double_value); |
| 1075 | visitor->visit(j, element_value); |
| 1076 | } else { |
| 1077 | Maybe<bool> maybe = JSReceiver::HasElement(array, j); |
| 1078 | if (!maybe.IsJust()) return false; |
| 1079 | if (maybe.FromJust()) { |
| 1080 | // Call GetElement on array, not its prototype, or getters won't |
| 1081 | // have the correct receiver. |
| 1082 | Handle<Object> element_value; |
| 1083 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1084 | isolate, element_value, Object::GetElement(isolate, array, j), |
| 1085 | false); |
| 1086 | visitor->visit(j, element_value); |
| 1087 | } |
| 1088 | } |
| 1089 | } |
| 1090 | break; |
| 1091 | } |
| 1092 | case DICTIONARY_ELEMENTS: { |
| 1093 | // CollectElementIndices() can't be called when there's a JSProxy |
| 1094 | // on the prototype chain. |
| 1095 | for (PrototypeIterator iter(isolate, array); !iter.IsAtEnd(); |
| 1096 | iter.Advance()) { |
| 1097 | if (PrototypeIterator::GetCurrent(iter)->IsJSProxy()) { |
| 1098 | return IterateElementsSlow(isolate, array, length, visitor); |
| 1099 | } |
| 1100 | } |
| 1101 | Handle<SeededNumberDictionary> dict(array->element_dictionary()); |
| 1102 | List<uint32_t> indices(dict->Capacity() / 2); |
| 1103 | // Collect all indices in the object and the prototypes less |
| 1104 | // than length. This might introduce duplicates in the indices list. |
| 1105 | CollectElementIndices(array, length, &indices); |
| 1106 | indices.Sort(&compareUInt32); |
| 1107 | int j = 0; |
| 1108 | int n = indices.length(); |
| 1109 | while (j < n) { |
| 1110 | HandleScope loop_scope(isolate); |
| 1111 | uint32_t index = indices[j]; |
| 1112 | Handle<Object> element; |
| 1113 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1114 | isolate, element, Object::GetElement(isolate, array, index), false); |
| 1115 | visitor->visit(index, element); |
| 1116 | // Skip to next different index (i.e., omit duplicates). |
| 1117 | do { |
| 1118 | j++; |
| 1119 | } while (j < n && indices[j] == index); |
| 1120 | } |
| 1121 | break; |
| 1122 | } |
| 1123 | case UINT8_CLAMPED_ELEMENTS: { |
| 1124 | Handle<FixedUint8ClampedArray> pixels( |
| 1125 | FixedUint8ClampedArray::cast(array->elements())); |
| 1126 | for (uint32_t j = 0; j < length; j++) { |
| 1127 | Handle<Smi> e(Smi::FromInt(pixels->get_scalar(j)), isolate); |
| 1128 | visitor->visit(j, e); |
| 1129 | } |
| 1130 | break; |
| 1131 | } |
| 1132 | case INT8_ELEMENTS: { |
| 1133 | IterateTypedArrayElements<FixedInt8Array, int8_t>(isolate, array, true, |
| 1134 | true, visitor); |
| 1135 | break; |
| 1136 | } |
| 1137 | case UINT8_ELEMENTS: { |
| 1138 | IterateTypedArrayElements<FixedUint8Array, uint8_t>(isolate, array, true, |
| 1139 | true, visitor); |
| 1140 | break; |
| 1141 | } |
| 1142 | case INT16_ELEMENTS: { |
| 1143 | IterateTypedArrayElements<FixedInt16Array, int16_t>(isolate, array, true, |
| 1144 | true, visitor); |
| 1145 | break; |
| 1146 | } |
| 1147 | case UINT16_ELEMENTS: { |
| 1148 | IterateTypedArrayElements<FixedUint16Array, uint16_t>( |
| 1149 | isolate, array, true, true, visitor); |
| 1150 | break; |
| 1151 | } |
| 1152 | case INT32_ELEMENTS: { |
| 1153 | IterateTypedArrayElements<FixedInt32Array, int32_t>(isolate, array, true, |
| 1154 | false, visitor); |
| 1155 | break; |
| 1156 | } |
| 1157 | case UINT32_ELEMENTS: { |
| 1158 | IterateTypedArrayElements<FixedUint32Array, uint32_t>( |
| 1159 | isolate, array, true, false, visitor); |
| 1160 | break; |
| 1161 | } |
| 1162 | case FLOAT32_ELEMENTS: { |
| 1163 | IterateTypedArrayElements<FixedFloat32Array, float>(isolate, array, false, |
| 1164 | false, visitor); |
| 1165 | break; |
| 1166 | } |
| 1167 | case FLOAT64_ELEMENTS: { |
| 1168 | IterateTypedArrayElements<FixedFloat64Array, double>( |
| 1169 | isolate, array, false, false, visitor); |
| 1170 | break; |
| 1171 | } |
| 1172 | case FAST_SLOPPY_ARGUMENTS_ELEMENTS: |
| 1173 | case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: { |
| 1174 | for (uint32_t index = 0; index < length; index++) { |
| 1175 | HandleScope loop_scope(isolate); |
| 1176 | Handle<Object> element; |
| 1177 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1178 | isolate, element, Object::GetElement(isolate, array, index), false); |
| 1179 | visitor->visit(index, element); |
| 1180 | } |
| 1181 | break; |
| 1182 | } |
| 1183 | } |
| 1184 | visitor->increase_index_offset(length); |
| 1185 | return true; |
| 1186 | } |
| 1187 | |
| 1188 | |
| 1189 | bool HasConcatSpreadableModifier(Isolate* isolate, Handle<JSArray> obj) { |
| 1190 | DCHECK(isolate->IsFastArrayConstructorPrototypeChainIntact()); |
| 1191 | if (!FLAG_harmony_concat_spreadable) return false; |
| 1192 | Handle<Symbol> key(isolate->factory()->is_concat_spreadable_symbol()); |
| 1193 | Maybe<bool> maybe = JSReceiver::HasProperty(obj, key); |
| 1194 | return maybe.FromMaybe(false); |
| 1195 | } |
| 1196 | |
| 1197 | |
| 1198 | static Maybe<bool> IsConcatSpreadable(Isolate* isolate, Handle<Object> obj) { |
| 1199 | HandleScope handle_scope(isolate); |
| 1200 | if (!obj->IsJSReceiver()) return Just(false); |
| 1201 | if (FLAG_harmony_concat_spreadable) { |
| 1202 | Handle<Symbol> key(isolate->factory()->is_concat_spreadable_symbol()); |
| 1203 | Handle<Object> value; |
| 1204 | MaybeHandle<Object> maybeValue = |
| 1205 | i::Runtime::GetObjectProperty(isolate, obj, key); |
| 1206 | if (!maybeValue.ToHandle(&value)) return Nothing<bool>(); |
| 1207 | if (!value->IsUndefined()) return Just(value->BooleanValue()); |
| 1208 | } |
| 1209 | return Object::IsArray(obj); |
| 1210 | } |
| 1211 | |
| 1212 | |
| 1213 | Object* Slow_ArrayConcat(Arguments* args, Isolate* isolate) { |
| 1214 | int argument_count = args->length(); |
| 1215 | |
| 1216 | // Pass 1: estimate the length and number of elements of the result. |
| 1217 | // The actual length can be larger if any of the arguments have getters |
| 1218 | // that mutate other arguments (but will otherwise be precise). |
| 1219 | // The number of elements is precise if there are no inherited elements. |
| 1220 | |
| 1221 | ElementsKind kind = FAST_SMI_ELEMENTS; |
| 1222 | |
| 1223 | uint32_t estimate_result_length = 0; |
| 1224 | uint32_t estimate_nof_elements = 0; |
| 1225 | for (int i = 0; i < argument_count; i++) { |
| 1226 | HandleScope loop_scope(isolate); |
| 1227 | Handle<Object> obj((*args)[i], isolate); |
| 1228 | uint32_t length_estimate; |
| 1229 | uint32_t element_estimate; |
| 1230 | if (obj->IsJSArray()) { |
| 1231 | Handle<JSArray> array(Handle<JSArray>::cast(obj)); |
| 1232 | length_estimate = static_cast<uint32_t>(array->length()->Number()); |
| 1233 | if (length_estimate != 0) { |
| 1234 | ElementsKind array_kind = |
| 1235 | GetPackedElementsKind(array->map()->elements_kind()); |
| 1236 | kind = GetMoreGeneralElementsKind(kind, array_kind); |
| 1237 | } |
| 1238 | element_estimate = EstimateElementCount(array); |
| 1239 | } else { |
| 1240 | if (obj->IsHeapObject()) { |
| 1241 | if (obj->IsNumber()) { |
| 1242 | kind = GetMoreGeneralElementsKind(kind, FAST_DOUBLE_ELEMENTS); |
| 1243 | } else { |
| 1244 | kind = GetMoreGeneralElementsKind(kind, FAST_ELEMENTS); |
| 1245 | } |
| 1246 | } |
| 1247 | length_estimate = 1; |
| 1248 | element_estimate = 1; |
| 1249 | } |
| 1250 | // Avoid overflows by capping at kMaxElementCount. |
| 1251 | if (JSObject::kMaxElementCount - estimate_result_length < length_estimate) { |
| 1252 | estimate_result_length = JSObject::kMaxElementCount; |
| 1253 | } else { |
| 1254 | estimate_result_length += length_estimate; |
| 1255 | } |
| 1256 | if (JSObject::kMaxElementCount - estimate_nof_elements < element_estimate) { |
| 1257 | estimate_nof_elements = JSObject::kMaxElementCount; |
| 1258 | } else { |
| 1259 | estimate_nof_elements += element_estimate; |
| 1260 | } |
| 1261 | } |
| 1262 | |
| 1263 | // If estimated number of elements is more than half of length, a |
| 1264 | // fixed array (fast case) is more time and space-efficient than a |
| 1265 | // dictionary. |
| 1266 | bool fast_case = (estimate_nof_elements * 2) >= estimate_result_length; |
| 1267 | |
| 1268 | if (fast_case && kind == FAST_DOUBLE_ELEMENTS) { |
| 1269 | Handle<FixedArrayBase> storage = |
| 1270 | isolate->factory()->NewFixedDoubleArray(estimate_result_length); |
| 1271 | int j = 0; |
| 1272 | bool failure = false; |
| 1273 | if (estimate_result_length > 0) { |
| 1274 | Handle<FixedDoubleArray> double_storage = |
| 1275 | Handle<FixedDoubleArray>::cast(storage); |
| 1276 | for (int i = 0; i < argument_count; i++) { |
| 1277 | Handle<Object> obj((*args)[i], isolate); |
| 1278 | if (obj->IsSmi()) { |
| 1279 | double_storage->set(j, Smi::cast(*obj)->value()); |
| 1280 | j++; |
| 1281 | } else if (obj->IsNumber()) { |
| 1282 | double_storage->set(j, obj->Number()); |
| 1283 | j++; |
| 1284 | } else { |
| 1285 | JSArray* array = JSArray::cast(*obj); |
| 1286 | uint32_t length = static_cast<uint32_t>(array->length()->Number()); |
| 1287 | switch (array->map()->elements_kind()) { |
| 1288 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 1289 | case FAST_DOUBLE_ELEMENTS: { |
| 1290 | // Empty array is FixedArray but not FixedDoubleArray. |
| 1291 | if (length == 0) break; |
| 1292 | FixedDoubleArray* elements = |
| 1293 | FixedDoubleArray::cast(array->elements()); |
| 1294 | for (uint32_t i = 0; i < length; i++) { |
| 1295 | if (elements->is_the_hole(i)) { |
| 1296 | // TODO(jkummerow/verwaest): We could be a bit more clever |
| 1297 | // here: Check if there are no elements/getters on the |
| 1298 | // prototype chain, and if so, allow creation of a holey |
| 1299 | // result array. |
| 1300 | // Same thing below (holey smi case). |
| 1301 | failure = true; |
| 1302 | break; |
| 1303 | } |
| 1304 | double double_value = elements->get_scalar(i); |
| 1305 | double_storage->set(j, double_value); |
| 1306 | j++; |
| 1307 | } |
| 1308 | break; |
| 1309 | } |
| 1310 | case FAST_HOLEY_SMI_ELEMENTS: |
| 1311 | case FAST_SMI_ELEMENTS: { |
| 1312 | FixedArray* elements(FixedArray::cast(array->elements())); |
| 1313 | for (uint32_t i = 0; i < length; i++) { |
| 1314 | Object* element = elements->get(i); |
| 1315 | if (element->IsTheHole()) { |
| 1316 | failure = true; |
| 1317 | break; |
| 1318 | } |
| 1319 | int32_t int_value = Smi::cast(element)->value(); |
| 1320 | double_storage->set(j, int_value); |
| 1321 | j++; |
| 1322 | } |
| 1323 | break; |
| 1324 | } |
| 1325 | case FAST_HOLEY_ELEMENTS: |
| 1326 | case FAST_ELEMENTS: |
| 1327 | case DICTIONARY_ELEMENTS: |
| 1328 | DCHECK_EQ(0u, length); |
| 1329 | break; |
| 1330 | default: |
| 1331 | UNREACHABLE(); |
| 1332 | } |
| 1333 | } |
| 1334 | if (failure) break; |
| 1335 | } |
| 1336 | } |
| 1337 | if (!failure) { |
| 1338 | Handle<JSArray> array = isolate->factory()->NewJSArray(0); |
| 1339 | Smi* length = Smi::FromInt(j); |
| 1340 | Handle<Map> map; |
| 1341 | map = JSObject::GetElementsTransitionMap(array, kind); |
| 1342 | array->set_map(*map); |
| 1343 | array->set_length(length); |
| 1344 | array->set_elements(*storage); |
| 1345 | return *array; |
| 1346 | } |
| 1347 | // In case of failure, fall through. |
| 1348 | } |
| 1349 | |
| 1350 | Handle<FixedArray> storage; |
| 1351 | if (fast_case) { |
| 1352 | // The backing storage array must have non-existing elements to preserve |
| 1353 | // holes across concat operations. |
| 1354 | storage = |
| 1355 | isolate->factory()->NewFixedArrayWithHoles(estimate_result_length); |
| 1356 | } else { |
| 1357 | // TODO(126): move 25% pre-allocation logic into Dictionary::Allocate |
| 1358 | uint32_t at_least_space_for = |
| 1359 | estimate_nof_elements + (estimate_nof_elements >> 2); |
| 1360 | storage = Handle<FixedArray>::cast( |
| 1361 | SeededNumberDictionary::New(isolate, at_least_space_for)); |
| 1362 | } |
| 1363 | |
| 1364 | ArrayConcatVisitor visitor(isolate, storage, fast_case); |
| 1365 | |
| 1366 | for (int i = 0; i < argument_count; i++) { |
| 1367 | Handle<Object> obj((*args)[i], isolate); |
| 1368 | Maybe<bool> spreadable = IsConcatSpreadable(isolate, obj); |
| 1369 | MAYBE_RETURN(spreadable, isolate->heap()->exception()); |
| 1370 | if (spreadable.FromJust()) { |
| 1371 | Handle<JSReceiver> object = Handle<JSReceiver>::cast(obj); |
| 1372 | if (!IterateElements(isolate, object, &visitor)) { |
| 1373 | return isolate->heap()->exception(); |
| 1374 | } |
| 1375 | } else { |
| 1376 | visitor.visit(0, obj); |
| 1377 | visitor.increase_index_offset(1); |
| 1378 | } |
| 1379 | } |
| 1380 | |
| 1381 | if (visitor.exceeds_array_limit()) { |
| 1382 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1383 | isolate, NewRangeError(MessageTemplate::kInvalidArrayLength)); |
| 1384 | } |
| 1385 | return *visitor.ToArray(); |
| 1386 | } |
| 1387 | |
| 1388 | |
| 1389 | MaybeHandle<JSArray> Fast_ArrayConcat(Isolate* isolate, Arguments* args) { |
| 1390 | if (!isolate->IsFastArrayConstructorPrototypeChainIntact()) { |
| 1391 | return MaybeHandle<JSArray>(); |
| 1392 | } |
| 1393 | int n_arguments = args->length(); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1394 | int result_len = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1395 | { |
| 1396 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1397 | Object* array_proto = isolate->array_function()->prototype(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1398 | // Iterate through all the arguments performing checks |
| 1399 | // and calculating total length. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1400 | for (int i = 0; i < n_arguments; i++) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1401 | Object* arg = (*args)[i]; |
| 1402 | if (!arg->IsJSArray()) return MaybeHandle<JSArray>(); |
| 1403 | Handle<JSArray> array(JSArray::cast(arg), isolate); |
| 1404 | if (!array->HasFastElements()) return MaybeHandle<JSArray>(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1405 | PrototypeIterator iter(isolate, arg); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1406 | if (iter.GetCurrent() != array_proto) return MaybeHandle<JSArray>(); |
| 1407 | if (HasConcatSpreadableModifier(isolate, array)) { |
| 1408 | return MaybeHandle<JSArray>(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1409 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1410 | int len = Smi::cast(array->length())->value(); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1411 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1412 | // We shouldn't overflow when adding another len. |
| 1413 | const int kHalfOfMaxInt = 1 << (kBitsPerInt - 2); |
| 1414 | STATIC_ASSERT(FixedArray::kMaxLength < kHalfOfMaxInt); |
| 1415 | USE(kHalfOfMaxInt); |
| 1416 | result_len += len; |
| 1417 | DCHECK(result_len >= 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1418 | // Throw an Error if we overflow the FixedArray limits |
| 1419 | if (FixedArray::kMaxLength < result_len) { |
| 1420 | THROW_NEW_ERROR(isolate, |
| 1421 | NewRangeError(MessageTemplate::kInvalidArrayLength), |
| 1422 | JSArray); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1423 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1424 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1425 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1426 | return ElementsAccessor::Concat(isolate, args, n_arguments); |
| 1427 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1428 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1429 | } // namespace |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1430 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1431 | // ES6 22.1.3.1 Array.prototype.concat |
| 1432 | BUILTIN(ArrayConcat) { |
| 1433 | HandleScope scope(isolate); |
| 1434 | |
| 1435 | Handle<Object> receiver; |
| 1436 | if (!Object::ToObject(isolate, handle(args[0], isolate)) |
| 1437 | .ToHandle(&receiver)) { |
| 1438 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1439 | isolate, NewTypeError(MessageTemplate::kCalledOnNullOrUndefined, |
| 1440 | isolate->factory()->NewStringFromAsciiChecked( |
| 1441 | "Array.prototype.concat"))); |
| 1442 | } |
| 1443 | args[0] = *receiver; |
| 1444 | |
| 1445 | Handle<JSArray> result_array; |
| 1446 | if (Fast_ArrayConcat(isolate, &args).ToHandle(&result_array)) { |
| 1447 | return *result_array; |
| 1448 | } |
| 1449 | if (isolate->has_pending_exception()) return isolate->heap()->exception(); |
| 1450 | return Slow_ArrayConcat(&args, isolate); |
| 1451 | } |
| 1452 | |
| 1453 | |
| 1454 | // ES6 22.1.2.2 Array.isArray |
| 1455 | BUILTIN(ArrayIsArray) { |
| 1456 | HandleScope scope(isolate); |
| 1457 | DCHECK_EQ(2, args.length()); |
| 1458 | Handle<Object> object = args.at<Object>(1); |
| 1459 | Maybe<bool> result = Object::IsArray(object); |
| 1460 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1461 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 1462 | } |
| 1463 | |
| 1464 | |
| 1465 | // ES6 19.1.2.1 Object.assign |
| 1466 | BUILTIN(ObjectAssign) { |
| 1467 | HandleScope scope(isolate); |
| 1468 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 1469 | |
| 1470 | // 1. Let to be ? ToObject(target). |
| 1471 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, target, |
| 1472 | Execution::ToObject(isolate, target)); |
| 1473 | Handle<JSReceiver> to = Handle<JSReceiver>::cast(target); |
| 1474 | // 2. If only one argument was passed, return to. |
| 1475 | if (args.length() == 2) return *to; |
| 1476 | // 3. Let sources be the List of argument values starting with the |
| 1477 | // second argument. |
| 1478 | // 4. For each element nextSource of sources, in ascending index order, |
| 1479 | for (int i = 2; i < args.length(); ++i) { |
| 1480 | Handle<Object> next_source = args.at<Object>(i); |
| 1481 | // 4a. If nextSource is undefined or null, let keys be an empty List. |
| 1482 | if (next_source->IsUndefined() || next_source->IsNull()) continue; |
| 1483 | // 4b. Else, |
| 1484 | // 4b i. Let from be ToObject(nextSource). |
| 1485 | Handle<JSReceiver> from = |
| 1486 | Object::ToObject(isolate, next_source).ToHandleChecked(); |
| 1487 | // 4b ii. Let keys be ? from.[[OwnPropertyKeys]](). |
| 1488 | Handle<FixedArray> keys; |
| 1489 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1490 | isolate, keys, JSReceiver::GetKeys(from, JSReceiver::OWN_ONLY, |
| 1491 | ALL_PROPERTIES, KEEP_NUMBERS)); |
| 1492 | // 4c. Repeat for each element nextKey of keys in List order, |
| 1493 | for (int j = 0; j < keys->length(); ++j) { |
| 1494 | Handle<Object> next_key(keys->get(j), isolate); |
| 1495 | // 4c i. Let desc be ? from.[[GetOwnProperty]](nextKey). |
| 1496 | PropertyDescriptor desc; |
| 1497 | Maybe<bool> found = |
| 1498 | JSReceiver::GetOwnPropertyDescriptor(isolate, from, next_key, &desc); |
| 1499 | if (found.IsNothing()) return isolate->heap()->exception(); |
| 1500 | // 4c ii. If desc is not undefined and desc.[[Enumerable]] is true, then |
| 1501 | if (found.FromJust() && desc.enumerable()) { |
| 1502 | // 4c ii 1. Let propValue be ? Get(from, nextKey). |
| 1503 | Handle<Object> prop_value; |
| 1504 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1505 | isolate, prop_value, |
| 1506 | Runtime::GetObjectProperty(isolate, from, next_key, STRICT)); |
| 1507 | // 4c ii 2. Let status be ? Set(to, nextKey, propValue, true). |
| 1508 | Handle<Object> status; |
| 1509 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1510 | isolate, status, Runtime::SetObjectProperty(isolate, to, next_key, |
| 1511 | prop_value, STRICT)); |
| 1512 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1513 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1514 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1515 | // 5. Return to. |
| 1516 | return *to; |
| 1517 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1518 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1519 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1520 | // ES6 section 19.1.2.2 Object.create ( O [ , Properties ] ) |
| 1521 | BUILTIN(ObjectCreate) { |
| 1522 | HandleScope scope(isolate); |
| 1523 | Handle<Object> prototype = args.atOrUndefined(isolate, 1); |
| 1524 | if (!prototype->IsNull() && !prototype->IsJSReceiver()) { |
| 1525 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1526 | isolate, NewTypeError(MessageTemplate::kProtoObjectOrNull, prototype)); |
| 1527 | } |
| 1528 | |
| 1529 | // Generate the map with the specified {prototype} based on the Object |
| 1530 | // function's initial map from the current native context. |
| 1531 | // TODO(bmeurer): Use a dedicated cache for Object.create; think about |
| 1532 | // slack tracking for Object.create. |
| 1533 | Handle<Map> map(isolate->native_context()->object_function()->initial_map(), |
| 1534 | isolate); |
| 1535 | if (map->prototype() != *prototype) { |
| 1536 | map = Map::TransitionToPrototype(map, prototype, FAST_PROTOTYPE); |
| 1537 | } |
| 1538 | |
| 1539 | // Actually allocate the object. |
| 1540 | Handle<JSObject> object = isolate->factory()->NewJSObjectFromMap(map); |
| 1541 | |
| 1542 | // Define the properties if properties was specified and is not undefined. |
| 1543 | Handle<Object> properties = args.atOrUndefined(isolate, 2); |
| 1544 | if (!properties->IsUndefined()) { |
| 1545 | RETURN_FAILURE_ON_EXCEPTION( |
| 1546 | isolate, JSReceiver::DefineProperties(isolate, object, properties)); |
| 1547 | } |
| 1548 | |
| 1549 | return *object; |
| 1550 | } |
| 1551 | |
| 1552 | |
| 1553 | // ES6 section 19.1.2.5 Object.freeze ( O ) |
| 1554 | BUILTIN(ObjectFreeze) { |
| 1555 | HandleScope scope(isolate); |
| 1556 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1557 | if (object->IsJSReceiver()) { |
| 1558 | MAYBE_RETURN(JSReceiver::SetIntegrityLevel(Handle<JSReceiver>::cast(object), |
| 1559 | FROZEN, Object::THROW_ON_ERROR), |
| 1560 | isolate->heap()->exception()); |
| 1561 | } |
| 1562 | return *object; |
| 1563 | } |
| 1564 | |
| 1565 | |
| 1566 | // ES6 section 19.1.2.11 Object.isExtensible ( O ) |
| 1567 | BUILTIN(ObjectIsExtensible) { |
| 1568 | HandleScope scope(isolate); |
| 1569 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1570 | Maybe<bool> result = |
| 1571 | object->IsJSReceiver() |
| 1572 | ? JSReceiver::IsExtensible(Handle<JSReceiver>::cast(object)) |
| 1573 | : Just(false); |
| 1574 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1575 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 1576 | } |
| 1577 | |
| 1578 | |
| 1579 | // ES6 section 19.1.2.12 Object.isFrozen ( O ) |
| 1580 | BUILTIN(ObjectIsFrozen) { |
| 1581 | HandleScope scope(isolate); |
| 1582 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1583 | Maybe<bool> result = object->IsJSReceiver() |
| 1584 | ? JSReceiver::TestIntegrityLevel( |
| 1585 | Handle<JSReceiver>::cast(object), FROZEN) |
| 1586 | : Just(true); |
| 1587 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1588 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 1589 | } |
| 1590 | |
| 1591 | |
| 1592 | // ES6 section 19.1.2.13 Object.isSealed ( O ) |
| 1593 | BUILTIN(ObjectIsSealed) { |
| 1594 | HandleScope scope(isolate); |
| 1595 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1596 | Maybe<bool> result = object->IsJSReceiver() |
| 1597 | ? JSReceiver::TestIntegrityLevel( |
| 1598 | Handle<JSReceiver>::cast(object), SEALED) |
| 1599 | : Just(true); |
| 1600 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1601 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 1602 | } |
| 1603 | |
| 1604 | |
| 1605 | // ES6 section 19.1.2.14 Object.keys ( O ) |
| 1606 | BUILTIN(ObjectKeys) { |
| 1607 | HandleScope scope(isolate); |
| 1608 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1609 | Handle<JSReceiver> receiver; |
| 1610 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 1611 | Execution::ToObject(isolate, object)); |
| 1612 | Handle<FixedArray> keys; |
| 1613 | |
| 1614 | int enum_length = receiver->map()->EnumLength(); |
| 1615 | if (enum_length != kInvalidEnumCacheSentinel && |
| 1616 | JSObject::cast(*receiver)->elements() == |
| 1617 | isolate->heap()->empty_fixed_array()) { |
| 1618 | DCHECK(receiver->IsJSObject()); |
| 1619 | DCHECK(!JSObject::cast(*receiver)->HasNamedInterceptor()); |
| 1620 | DCHECK(!JSObject::cast(*receiver)->IsAccessCheckNeeded()); |
| 1621 | DCHECK(!HeapObject::cast(receiver->map()->prototype()) |
| 1622 | ->map() |
| 1623 | ->is_hidden_prototype()); |
| 1624 | DCHECK(JSObject::cast(*receiver)->HasFastProperties()); |
| 1625 | if (enum_length == 0) { |
| 1626 | keys = isolate->factory()->empty_fixed_array(); |
| 1627 | } else { |
| 1628 | Handle<FixedArray> cache( |
| 1629 | receiver->map()->instance_descriptors()->GetEnumCache()); |
| 1630 | keys = isolate->factory()->NewFixedArray(enum_length); |
| 1631 | for (int i = 0; i < enum_length; i++) { |
| 1632 | keys->set(i, cache->get(i)); |
| 1633 | } |
| 1634 | } |
| 1635 | } else { |
| 1636 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1637 | isolate, keys, |
| 1638 | JSReceiver::GetKeys(receiver, JSReceiver::OWN_ONLY, ENUMERABLE_STRINGS, |
| 1639 | CONVERT_TO_STRING)); |
| 1640 | } |
| 1641 | return *isolate->factory()->NewJSArrayWithElements(keys, FAST_ELEMENTS); |
| 1642 | } |
| 1643 | |
| 1644 | |
| 1645 | // ES6 section 19.1.2.15 Object.preventExtensions ( O ) |
| 1646 | BUILTIN(ObjectPreventExtensions) { |
| 1647 | HandleScope scope(isolate); |
| 1648 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1649 | if (object->IsJSReceiver()) { |
| 1650 | MAYBE_RETURN(JSReceiver::PreventExtensions(Handle<JSReceiver>::cast(object), |
| 1651 | Object::THROW_ON_ERROR), |
| 1652 | isolate->heap()->exception()); |
| 1653 | } |
| 1654 | return *object; |
| 1655 | } |
| 1656 | |
| 1657 | |
| 1658 | // ES6 section 19.1.2.17 Object.seal ( O ) |
| 1659 | BUILTIN(ObjectSeal) { |
| 1660 | HandleScope scope(isolate); |
| 1661 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1662 | if (object->IsJSReceiver()) { |
| 1663 | MAYBE_RETURN(JSReceiver::SetIntegrityLevel(Handle<JSReceiver>::cast(object), |
| 1664 | SEALED, Object::THROW_ON_ERROR), |
| 1665 | isolate->heap()->exception()); |
| 1666 | } |
| 1667 | return *object; |
| 1668 | } |
| 1669 | |
| 1670 | |
| 1671 | namespace { |
| 1672 | |
| 1673 | bool CodeGenerationFromStringsAllowed(Isolate* isolate, |
| 1674 | Handle<Context> context) { |
| 1675 | DCHECK(context->allow_code_gen_from_strings()->IsFalse()); |
| 1676 | // Check with callback if set. |
| 1677 | AllowCodeGenerationFromStringsCallback callback = |
| 1678 | isolate->allow_code_gen_callback(); |
| 1679 | if (callback == NULL) { |
| 1680 | // No callback set and code generation disallowed. |
| 1681 | return false; |
| 1682 | } else { |
| 1683 | // Callback set. Let it decide if code generation is allowed. |
| 1684 | VMState<EXTERNAL> state(isolate); |
| 1685 | return callback(v8::Utils::ToLocal(context)); |
| 1686 | } |
| 1687 | } |
| 1688 | |
| 1689 | |
| 1690 | MaybeHandle<JSFunction> CompileString(Handle<Context> context, |
| 1691 | Handle<String> source, |
| 1692 | ParseRestriction restriction) { |
| 1693 | Isolate* const isolate = context->GetIsolate(); |
| 1694 | Handle<Context> native_context(context->native_context(), isolate); |
| 1695 | |
| 1696 | // Check if native context allows code generation from |
| 1697 | // strings. Throw an exception if it doesn't. |
| 1698 | if (native_context->allow_code_gen_from_strings()->IsFalse() && |
| 1699 | !CodeGenerationFromStringsAllowed(isolate, native_context)) { |
| 1700 | Handle<Object> error_message = |
| 1701 | native_context->ErrorMessageForCodeGenerationFromStrings(); |
| 1702 | THROW_NEW_ERROR(isolate, NewEvalError(MessageTemplate::kCodeGenFromStrings, |
| 1703 | error_message), |
| 1704 | JSFunction); |
| 1705 | } |
| 1706 | |
| 1707 | // Compile source string in the native context. |
| 1708 | Handle<SharedFunctionInfo> outer_info(native_context->closure()->shared(), |
| 1709 | isolate); |
| 1710 | return Compiler::GetFunctionFromEval(source, outer_info, native_context, |
| 1711 | SLOPPY, restriction, |
| 1712 | RelocInfo::kNoPosition); |
| 1713 | } |
| 1714 | |
| 1715 | } // namespace |
| 1716 | |
| 1717 | |
| 1718 | // ES6 section 18.2.1 eval (x) |
| 1719 | BUILTIN(GlobalEval) { |
| 1720 | HandleScope scope(isolate); |
| 1721 | Handle<Object> x = args.atOrUndefined(isolate, 1); |
| 1722 | Handle<JSFunction> target = args.target(); |
| 1723 | Handle<JSObject> target_global_proxy(target->global_proxy(), isolate); |
| 1724 | if (!x->IsString()) return *x; |
| 1725 | Handle<JSFunction> function; |
| 1726 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1727 | isolate, function, |
| 1728 | CompileString(handle(target->native_context(), isolate), |
| 1729 | Handle<String>::cast(x), NO_PARSE_RESTRICTION)); |
| 1730 | Handle<Object> result; |
| 1731 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1732 | isolate, result, |
| 1733 | Execution::Call(isolate, function, target_global_proxy, 0, nullptr)); |
| 1734 | return *result; |
| 1735 | } |
| 1736 | |
| 1737 | |
| 1738 | // ES6 section 26.1.3 Reflect.defineProperty |
| 1739 | BUILTIN(ReflectDefineProperty) { |
| 1740 | HandleScope scope(isolate); |
| 1741 | DCHECK_EQ(4, args.length()); |
| 1742 | Handle<Object> target = args.at<Object>(1); |
| 1743 | Handle<Object> key = args.at<Object>(2); |
| 1744 | Handle<Object> attributes = args.at<Object>(3); |
| 1745 | |
| 1746 | if (!target->IsJSReceiver()) { |
| 1747 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1748 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1749 | isolate->factory()->NewStringFromAsciiChecked( |
| 1750 | "Reflect.defineProperty"))); |
| 1751 | } |
| 1752 | |
| 1753 | Handle<Name> name; |
| 1754 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1755 | Object::ToName(isolate, key)); |
| 1756 | |
| 1757 | PropertyDescriptor desc; |
| 1758 | if (!PropertyDescriptor::ToPropertyDescriptor(isolate, attributes, &desc)) { |
| 1759 | return isolate->heap()->exception(); |
| 1760 | } |
| 1761 | |
| 1762 | Maybe<bool> result = |
| 1763 | JSReceiver::DefineOwnProperty(isolate, Handle<JSReceiver>::cast(target), |
| 1764 | name, &desc, Object::DONT_THROW); |
| 1765 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1766 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 1767 | } |
| 1768 | |
| 1769 | |
| 1770 | // ES6 section 26.1.4 Reflect.deleteProperty |
| 1771 | BUILTIN(ReflectDeleteProperty) { |
| 1772 | HandleScope scope(isolate); |
| 1773 | DCHECK_EQ(3, args.length()); |
| 1774 | Handle<Object> target = args.at<Object>(1); |
| 1775 | Handle<Object> key = args.at<Object>(2); |
| 1776 | |
| 1777 | if (!target->IsJSReceiver()) { |
| 1778 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1779 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1780 | isolate->factory()->NewStringFromAsciiChecked( |
| 1781 | "Reflect.deleteProperty"))); |
| 1782 | } |
| 1783 | |
| 1784 | Handle<Name> name; |
| 1785 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1786 | Object::ToName(isolate, key)); |
| 1787 | |
| 1788 | Maybe<bool> result = JSReceiver::DeletePropertyOrElement( |
| 1789 | Handle<JSReceiver>::cast(target), name, SLOPPY); |
| 1790 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1791 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 1792 | } |
| 1793 | |
| 1794 | |
| 1795 | // ES6 section 26.1.6 Reflect.get |
| 1796 | BUILTIN(ReflectGet) { |
| 1797 | HandleScope scope(isolate); |
| 1798 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 1799 | Handle<Object> key = args.atOrUndefined(isolate, 2); |
| 1800 | Handle<Object> receiver = args.length() > 3 ? args.at<Object>(3) : target; |
| 1801 | |
| 1802 | if (!target->IsJSReceiver()) { |
| 1803 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1804 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1805 | isolate->factory()->NewStringFromAsciiChecked( |
| 1806 | "Reflect.get"))); |
| 1807 | } |
| 1808 | |
| 1809 | Handle<Name> name; |
| 1810 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1811 | Object::ToName(isolate, key)); |
| 1812 | |
| 1813 | Handle<Object> result; |
| 1814 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1815 | isolate, result, Object::GetPropertyOrElement( |
| 1816 | Handle<JSReceiver>::cast(target), name, receiver)); |
| 1817 | |
| 1818 | return *result; |
| 1819 | } |
| 1820 | |
| 1821 | |
| 1822 | // ES6 section 26.1.7 Reflect.getOwnPropertyDescriptor |
| 1823 | BUILTIN(ReflectGetOwnPropertyDescriptor) { |
| 1824 | HandleScope scope(isolate); |
| 1825 | DCHECK_EQ(3, args.length()); |
| 1826 | Handle<Object> target = args.at<Object>(1); |
| 1827 | Handle<Object> key = args.at<Object>(2); |
| 1828 | |
| 1829 | if (!target->IsJSReceiver()) { |
| 1830 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1831 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1832 | isolate->factory()->NewStringFromAsciiChecked( |
| 1833 | "Reflect.getOwnPropertyDescriptor"))); |
| 1834 | } |
| 1835 | |
| 1836 | Handle<Name> name; |
| 1837 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1838 | Object::ToName(isolate, key)); |
| 1839 | |
| 1840 | PropertyDescriptor desc; |
| 1841 | Maybe<bool> found = JSReceiver::GetOwnPropertyDescriptor( |
| 1842 | isolate, Handle<JSReceiver>::cast(target), name, &desc); |
| 1843 | MAYBE_RETURN(found, isolate->heap()->exception()); |
| 1844 | if (!found.FromJust()) return isolate->heap()->undefined_value(); |
| 1845 | return *desc.ToObject(isolate); |
| 1846 | } |
| 1847 | |
| 1848 | |
| 1849 | // ES6 section 26.1.8 Reflect.getPrototypeOf |
| 1850 | BUILTIN(ReflectGetPrototypeOf) { |
| 1851 | HandleScope scope(isolate); |
| 1852 | DCHECK_EQ(2, args.length()); |
| 1853 | Handle<Object> target = args.at<Object>(1); |
| 1854 | |
| 1855 | if (!target->IsJSReceiver()) { |
| 1856 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1857 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1858 | isolate->factory()->NewStringFromAsciiChecked( |
| 1859 | "Reflect.getPrototypeOf"))); |
| 1860 | } |
| 1861 | Handle<Object> prototype; |
| 1862 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, prototype, |
| 1863 | Object::GetPrototype(isolate, target)); |
| 1864 | return *prototype; |
| 1865 | } |
| 1866 | |
| 1867 | |
| 1868 | // ES6 section 26.1.9 Reflect.has |
| 1869 | BUILTIN(ReflectHas) { |
| 1870 | HandleScope scope(isolate); |
| 1871 | DCHECK_EQ(3, args.length()); |
| 1872 | Handle<Object> target = args.at<Object>(1); |
| 1873 | Handle<Object> key = args.at<Object>(2); |
| 1874 | |
| 1875 | if (!target->IsJSReceiver()) { |
| 1876 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1877 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1878 | isolate->factory()->NewStringFromAsciiChecked( |
| 1879 | "Reflect.has"))); |
| 1880 | } |
| 1881 | |
| 1882 | Handle<Name> name; |
| 1883 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1884 | Object::ToName(isolate, key)); |
| 1885 | |
| 1886 | Maybe<bool> result = |
| 1887 | JSReceiver::HasProperty(Handle<JSReceiver>::cast(target), name); |
| 1888 | return result.IsJust() ? *isolate->factory()->ToBoolean(result.FromJust()) |
| 1889 | : isolate->heap()->exception(); |
| 1890 | } |
| 1891 | |
| 1892 | |
| 1893 | // ES6 section 26.1.10 Reflect.isExtensible |
| 1894 | BUILTIN(ReflectIsExtensible) { |
| 1895 | HandleScope scope(isolate); |
| 1896 | DCHECK_EQ(2, args.length()); |
| 1897 | Handle<Object> target = args.at<Object>(1); |
| 1898 | |
| 1899 | if (!target->IsJSReceiver()) { |
| 1900 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1901 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1902 | isolate->factory()->NewStringFromAsciiChecked( |
| 1903 | "Reflect.isExtensible"))); |
| 1904 | } |
| 1905 | |
| 1906 | Maybe<bool> result = |
| 1907 | JSReceiver::IsExtensible(Handle<JSReceiver>::cast(target)); |
| 1908 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1909 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 1910 | } |
| 1911 | |
| 1912 | |
| 1913 | // ES6 section 26.1.11 Reflect.ownKeys |
| 1914 | BUILTIN(ReflectOwnKeys) { |
| 1915 | HandleScope scope(isolate); |
| 1916 | DCHECK_EQ(2, args.length()); |
| 1917 | Handle<Object> target = args.at<Object>(1); |
| 1918 | |
| 1919 | if (!target->IsJSReceiver()) { |
| 1920 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1921 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1922 | isolate->factory()->NewStringFromAsciiChecked( |
| 1923 | "Reflect.ownKeys"))); |
| 1924 | } |
| 1925 | |
| 1926 | Handle<FixedArray> keys; |
| 1927 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1928 | isolate, keys, JSReceiver::GetKeys(Handle<JSReceiver>::cast(target), |
| 1929 | JSReceiver::OWN_ONLY, ALL_PROPERTIES, |
| 1930 | CONVERT_TO_STRING)); |
| 1931 | return *isolate->factory()->NewJSArrayWithElements(keys); |
| 1932 | } |
| 1933 | |
| 1934 | |
| 1935 | // ES6 section 26.1.12 Reflect.preventExtensions |
| 1936 | BUILTIN(ReflectPreventExtensions) { |
| 1937 | HandleScope scope(isolate); |
| 1938 | DCHECK_EQ(2, args.length()); |
| 1939 | Handle<Object> target = args.at<Object>(1); |
| 1940 | |
| 1941 | if (!target->IsJSReceiver()) { |
| 1942 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1943 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1944 | isolate->factory()->NewStringFromAsciiChecked( |
| 1945 | "Reflect.preventExtensions"))); |
| 1946 | } |
| 1947 | |
| 1948 | Maybe<bool> result = JSReceiver::PreventExtensions( |
| 1949 | Handle<JSReceiver>::cast(target), Object::DONT_THROW); |
| 1950 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1951 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 1952 | } |
| 1953 | |
| 1954 | |
| 1955 | // ES6 section 26.1.13 Reflect.set |
| 1956 | BUILTIN(ReflectSet) { |
| 1957 | HandleScope scope(isolate); |
| 1958 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 1959 | Handle<Object> key = args.atOrUndefined(isolate, 2); |
| 1960 | Handle<Object> value = args.atOrUndefined(isolate, 3); |
| 1961 | Handle<Object> receiver = args.length() > 4 ? args.at<Object>(4) : target; |
| 1962 | |
| 1963 | if (!target->IsJSReceiver()) { |
| 1964 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1965 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1966 | isolate->factory()->NewStringFromAsciiChecked( |
| 1967 | "Reflect.set"))); |
| 1968 | } |
| 1969 | |
| 1970 | Handle<Name> name; |
| 1971 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1972 | Object::ToName(isolate, key)); |
| 1973 | |
| 1974 | LookupIterator it = LookupIterator::PropertyOrElement( |
| 1975 | isolate, receiver, name, Handle<JSReceiver>::cast(target)); |
| 1976 | Maybe<bool> result = Object::SetSuperProperty( |
| 1977 | &it, value, SLOPPY, Object::MAY_BE_STORE_FROM_KEYED); |
| 1978 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1979 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 1980 | } |
| 1981 | |
| 1982 | |
| 1983 | // ES6 section 26.1.14 Reflect.setPrototypeOf |
| 1984 | BUILTIN(ReflectSetPrototypeOf) { |
| 1985 | HandleScope scope(isolate); |
| 1986 | DCHECK_EQ(3, args.length()); |
| 1987 | Handle<Object> target = args.at<Object>(1); |
| 1988 | Handle<Object> proto = args.at<Object>(2); |
| 1989 | |
| 1990 | if (!target->IsJSReceiver()) { |
| 1991 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1992 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 1993 | isolate->factory()->NewStringFromAsciiChecked( |
| 1994 | "Reflect.setPrototypeOf"))); |
| 1995 | } |
| 1996 | |
| 1997 | if (!proto->IsJSReceiver() && !proto->IsNull()) { |
| 1998 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1999 | isolate, NewTypeError(MessageTemplate::kProtoObjectOrNull, proto)); |
| 2000 | } |
| 2001 | |
| 2002 | Maybe<bool> result = JSReceiver::SetPrototype( |
| 2003 | Handle<JSReceiver>::cast(target), proto, true, Object::DONT_THROW); |
| 2004 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2005 | return *isolate->factory()->ToBoolean(result.FromJust()); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2006 | } |
| 2007 | |
| 2008 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2009 | // ----------------------------------------------------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2010 | // ES6 section 20.3 Date Objects |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2011 | |
| 2012 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2013 | namespace { |
| 2014 | |
| 2015 | // ES6 section 20.3.1.1 Time Values and Time Range |
| 2016 | const double kMinYear = -1000000.0; |
| 2017 | const double kMaxYear = -kMinYear; |
| 2018 | const double kMinMonth = -10000000.0; |
| 2019 | const double kMaxMonth = -kMinMonth; |
| 2020 | |
| 2021 | |
| 2022 | // 20.3.1.2 Day Number and Time within Day |
| 2023 | const double kMsPerDay = 86400000.0; |
| 2024 | |
| 2025 | |
| 2026 | // ES6 section 20.3.1.11 Hours, Minutes, Second, and Milliseconds |
| 2027 | const double kMsPerSecond = 1000.0; |
| 2028 | const double kMsPerMinute = 60000.0; |
| 2029 | const double kMsPerHour = 3600000.0; |
| 2030 | |
| 2031 | |
| 2032 | // ES6 section 20.3.1.14 MakeDate (day, time) |
| 2033 | double MakeDate(double day, double time) { |
| 2034 | if (std::isfinite(day) && std::isfinite(time)) { |
| 2035 | return time + day * kMsPerDay; |
| 2036 | } |
| 2037 | return std::numeric_limits<double>::quiet_NaN(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2038 | } |
| 2039 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2040 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2041 | // ES6 section 20.3.1.13 MakeDay (year, month, date) |
| 2042 | double MakeDay(double year, double month, double date) { |
| 2043 | if ((kMinYear <= year && year <= kMaxYear) && |
| 2044 | (kMinMonth <= month && month <= kMaxMonth) && std::isfinite(date)) { |
| 2045 | int y = FastD2I(year); |
| 2046 | int m = FastD2I(month); |
| 2047 | y += m / 12; |
| 2048 | m %= 12; |
| 2049 | if (m < 0) { |
| 2050 | m += 12; |
| 2051 | y -= 1; |
| 2052 | } |
| 2053 | DCHECK_LE(0, m); |
| 2054 | DCHECK_LT(m, 12); |
| 2055 | |
| 2056 | // kYearDelta is an arbitrary number such that: |
| 2057 | // a) kYearDelta = -1 (mod 400) |
| 2058 | // b) year + kYearDelta > 0 for years in the range defined by |
| 2059 | // ECMA 262 - 15.9.1.1, i.e. upto 100,000,000 days on either side of |
| 2060 | // Jan 1 1970. This is required so that we don't run into integer |
| 2061 | // division of negative numbers. |
| 2062 | // c) there shouldn't be an overflow for 32-bit integers in the following |
| 2063 | // operations. |
| 2064 | static const int kYearDelta = 399999; |
| 2065 | static const int kBaseDay = |
| 2066 | 365 * (1970 + kYearDelta) + (1970 + kYearDelta) / 4 - |
| 2067 | (1970 + kYearDelta) / 100 + (1970 + kYearDelta) / 400; |
| 2068 | int day_from_year = 365 * (y + kYearDelta) + (y + kYearDelta) / 4 - |
| 2069 | (y + kYearDelta) / 100 + (y + kYearDelta) / 400 - |
| 2070 | kBaseDay; |
| 2071 | if ((y % 4 != 0) || (y % 100 == 0 && y % 400 != 0)) { |
| 2072 | static const int kDayFromMonth[] = {0, 31, 59, 90, 120, 151, |
| 2073 | 181, 212, 243, 273, 304, 334}; |
| 2074 | day_from_year += kDayFromMonth[m]; |
| 2075 | } else { |
| 2076 | static const int kDayFromMonth[] = {0, 31, 60, 91, 121, 152, |
| 2077 | 182, 213, 244, 274, 305, 335}; |
| 2078 | day_from_year += kDayFromMonth[m]; |
| 2079 | } |
| 2080 | return static_cast<double>(day_from_year - 1) + date; |
| 2081 | } |
| 2082 | return std::numeric_limits<double>::quiet_NaN(); |
| 2083 | } |
| 2084 | |
| 2085 | |
| 2086 | // ES6 section 20.3.1.12 MakeTime (hour, min, sec, ms) |
| 2087 | double MakeTime(double hour, double min, double sec, double ms) { |
| 2088 | if (std::isfinite(hour) && std::isfinite(min) && std::isfinite(sec) && |
| 2089 | std::isfinite(ms)) { |
| 2090 | double const h = DoubleToInteger(hour); |
| 2091 | double const m = DoubleToInteger(min); |
| 2092 | double const s = DoubleToInteger(sec); |
| 2093 | double const milli = DoubleToInteger(ms); |
| 2094 | return h * kMsPerHour + m * kMsPerMinute + s * kMsPerSecond + milli; |
| 2095 | } |
| 2096 | return std::numeric_limits<double>::quiet_NaN(); |
| 2097 | } |
| 2098 | |
| 2099 | |
| 2100 | // ES6 section 20.3.1.15 TimeClip (time) |
| 2101 | double TimeClip(double time) { |
| 2102 | if (-DateCache::kMaxTimeInMs <= time && time <= DateCache::kMaxTimeInMs) { |
| 2103 | return DoubleToInteger(time) + 0.0; |
| 2104 | } |
| 2105 | return std::numeric_limits<double>::quiet_NaN(); |
| 2106 | } |
| 2107 | |
| 2108 | |
| 2109 | const char* kShortWeekDays[] = {"Sun", "Mon", "Tue", "Wed", |
| 2110 | "Thu", "Fri", "Sat"}; |
| 2111 | const char* kShortMonths[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| 2112 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; |
| 2113 | |
| 2114 | |
| 2115 | // ES6 section 20.3.1.16 Date Time String Format |
| 2116 | double ParseDateTimeString(Handle<String> str) { |
| 2117 | Isolate* const isolate = str->GetIsolate(); |
| 2118 | str = String::Flatten(str); |
| 2119 | // TODO(bmeurer): Change DateParser to not use the FixedArray. |
| 2120 | Handle<FixedArray> tmp = |
| 2121 | isolate->factory()->NewFixedArray(DateParser::OUTPUT_SIZE); |
| 2122 | DisallowHeapAllocation no_gc; |
| 2123 | String::FlatContent str_content = str->GetFlatContent(); |
| 2124 | bool result; |
| 2125 | if (str_content.IsOneByte()) { |
| 2126 | result = DateParser::Parse(str_content.ToOneByteVector(), *tmp, |
| 2127 | isolate->unicode_cache()); |
| 2128 | } else { |
| 2129 | result = DateParser::Parse(str_content.ToUC16Vector(), *tmp, |
| 2130 | isolate->unicode_cache()); |
| 2131 | } |
| 2132 | if (!result) return std::numeric_limits<double>::quiet_NaN(); |
| 2133 | double const day = MakeDay(tmp->get(0)->Number(), tmp->get(1)->Number(), |
| 2134 | tmp->get(2)->Number()); |
| 2135 | double const time = MakeTime(tmp->get(3)->Number(), tmp->get(4)->Number(), |
| 2136 | tmp->get(5)->Number(), tmp->get(6)->Number()); |
| 2137 | double date = MakeDate(day, time); |
| 2138 | if (tmp->get(7)->IsNull()) { |
| 2139 | if (!std::isnan(date)) { |
| 2140 | date = isolate->date_cache()->ToUTC(static_cast<int64_t>(date)); |
| 2141 | } |
| 2142 | } else { |
| 2143 | date -= tmp->get(7)->Number() * 1000.0; |
| 2144 | } |
| 2145 | return date; |
| 2146 | } |
| 2147 | |
| 2148 | |
| 2149 | enum ToDateStringMode { kDateOnly, kTimeOnly, kDateAndTime }; |
| 2150 | |
| 2151 | |
| 2152 | // ES6 section 20.3.4.41.1 ToDateString(tv) |
| 2153 | void ToDateString(double time_val, Vector<char> str, DateCache* date_cache, |
| 2154 | ToDateStringMode mode = kDateAndTime) { |
| 2155 | if (std::isnan(time_val)) { |
| 2156 | SNPrintF(str, "Invalid Date"); |
| 2157 | return; |
| 2158 | } |
| 2159 | int64_t time_ms = static_cast<int64_t>(time_val); |
| 2160 | int64_t local_time_ms = date_cache->ToLocal(time_ms); |
| 2161 | int year, month, day, weekday, hour, min, sec, ms; |
| 2162 | date_cache->BreakDownTime(local_time_ms, &year, &month, &day, &weekday, &hour, |
| 2163 | &min, &sec, &ms); |
| 2164 | int timezone_offset = -date_cache->TimezoneOffset(time_ms); |
| 2165 | int timezone_hour = std::abs(timezone_offset) / 60; |
| 2166 | int timezone_min = std::abs(timezone_offset) % 60; |
| 2167 | const char* local_timezone = date_cache->LocalTimezone(time_ms); |
| 2168 | switch (mode) { |
| 2169 | case kDateOnly: |
| 2170 | SNPrintF(str, "%s %s %02d %4d", kShortWeekDays[weekday], |
| 2171 | kShortMonths[month], day, year); |
| 2172 | return; |
| 2173 | case kTimeOnly: |
| 2174 | SNPrintF(str, "%02d:%02d:%02d GMT%c%02d%02d (%s)", hour, min, sec, |
| 2175 | (timezone_offset < 0) ? '-' : '+', timezone_hour, timezone_min, |
| 2176 | local_timezone); |
| 2177 | return; |
| 2178 | case kDateAndTime: |
| 2179 | SNPrintF(str, "%s %s %02d %4d %02d:%02d:%02d GMT%c%02d%02d (%s)", |
| 2180 | kShortWeekDays[weekday], kShortMonths[month], day, year, hour, |
| 2181 | min, sec, (timezone_offset < 0) ? '-' : '+', timezone_hour, |
| 2182 | timezone_min, local_timezone); |
| 2183 | return; |
| 2184 | } |
| 2185 | UNREACHABLE(); |
| 2186 | } |
| 2187 | |
| 2188 | |
| 2189 | Object* SetLocalDateValue(Handle<JSDate> date, double time_val) { |
| 2190 | if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs && |
| 2191 | time_val <= DateCache::kMaxTimeBeforeUTCInMs) { |
| 2192 | Isolate* const isolate = date->GetIsolate(); |
| 2193 | time_val = isolate->date_cache()->ToUTC(static_cast<int64_t>(time_val)); |
| 2194 | } else { |
| 2195 | time_val = std::numeric_limits<double>::quiet_NaN(); |
| 2196 | } |
| 2197 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2198 | } |
| 2199 | |
| 2200 | } // namespace |
| 2201 | |
| 2202 | |
| 2203 | // ES6 section 20.3.2 The Date Constructor for the [[Call]] case. |
| 2204 | BUILTIN(DateConstructor) { |
| 2205 | HandleScope scope(isolate); |
| 2206 | double const time_val = JSDate::CurrentTimeValue(isolate); |
| 2207 | char buffer[128]; |
| 2208 | Vector<char> str(buffer, arraysize(buffer)); |
| 2209 | ToDateString(time_val, str, isolate->date_cache()); |
| 2210 | return *isolate->factory()->NewStringFromAsciiChecked(str.start()); |
| 2211 | } |
| 2212 | |
| 2213 | |
| 2214 | // ES6 section 20.3.2 The Date Constructor for the [[Construct]] case. |
| 2215 | BUILTIN(DateConstructor_ConstructStub) { |
| 2216 | HandleScope scope(isolate); |
| 2217 | int const argc = args.length() - 1; |
| 2218 | Handle<JSFunction> target = args.target(); |
| 2219 | Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 2220 | double time_val; |
| 2221 | if (argc == 0) { |
| 2222 | time_val = JSDate::CurrentTimeValue(isolate); |
| 2223 | } else if (argc == 1) { |
| 2224 | Handle<Object> value = args.at<Object>(1); |
| 2225 | if (value->IsJSDate()) { |
| 2226 | time_val = Handle<JSDate>::cast(value)->value()->Number(); |
| 2227 | } else { |
| 2228 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, |
| 2229 | Object::ToPrimitive(value)); |
| 2230 | if (value->IsString()) { |
| 2231 | time_val = ParseDateTimeString(Handle<String>::cast(value)); |
| 2232 | } else { |
| 2233 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, |
| 2234 | Object::ToNumber(value)); |
| 2235 | time_val = value->Number(); |
| 2236 | } |
| 2237 | } |
| 2238 | } else { |
| 2239 | Handle<Object> year_object; |
| 2240 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object, |
| 2241 | Object::ToNumber(args.at<Object>(1))); |
| 2242 | Handle<Object> month_object; |
| 2243 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object, |
| 2244 | Object::ToNumber(args.at<Object>(2))); |
| 2245 | double year = year_object->Number(); |
| 2246 | double month = month_object->Number(); |
| 2247 | double date = 1.0, hours = 0.0, minutes = 0.0, seconds = 0.0, ms = 0.0; |
| 2248 | if (argc >= 3) { |
| 2249 | Handle<Object> date_object; |
| 2250 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date_object, |
| 2251 | Object::ToNumber(args.at<Object>(3))); |
| 2252 | date = date_object->Number(); |
| 2253 | if (argc >= 4) { |
| 2254 | Handle<Object> hours_object; |
| 2255 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2256 | isolate, hours_object, Object::ToNumber(args.at<Object>(4))); |
| 2257 | hours = hours_object->Number(); |
| 2258 | if (argc >= 5) { |
| 2259 | Handle<Object> minutes_object; |
| 2260 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2261 | isolate, minutes_object, Object::ToNumber(args.at<Object>(5))); |
| 2262 | minutes = minutes_object->Number(); |
| 2263 | if (argc >= 6) { |
| 2264 | Handle<Object> seconds_object; |
| 2265 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2266 | isolate, seconds_object, Object::ToNumber(args.at<Object>(6))); |
| 2267 | seconds = seconds_object->Number(); |
| 2268 | if (argc >= 7) { |
| 2269 | Handle<Object> ms_object; |
| 2270 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2271 | isolate, ms_object, Object::ToNumber(args.at<Object>(7))); |
| 2272 | ms = ms_object->Number(); |
| 2273 | } |
| 2274 | } |
| 2275 | } |
| 2276 | } |
| 2277 | } |
| 2278 | if (!std::isnan(year)) { |
| 2279 | double const y = DoubleToInteger(year); |
| 2280 | if (0.0 <= y && y <= 99) year = 1900 + y; |
| 2281 | } |
| 2282 | double const day = MakeDay(year, month, date); |
| 2283 | double const time = MakeTime(hours, minutes, seconds, ms); |
| 2284 | time_val = MakeDate(day, time); |
| 2285 | if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs && |
| 2286 | time_val <= DateCache::kMaxTimeBeforeUTCInMs) { |
| 2287 | time_val = isolate->date_cache()->ToUTC(static_cast<int64_t>(time_val)); |
| 2288 | } else { |
| 2289 | time_val = std::numeric_limits<double>::quiet_NaN(); |
| 2290 | } |
| 2291 | } |
| 2292 | Handle<JSDate> result; |
| 2293 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 2294 | JSDate::New(target, new_target, time_val)); |
| 2295 | return *result; |
| 2296 | } |
| 2297 | |
| 2298 | |
| 2299 | // ES6 section 20.3.3.1 Date.now ( ) |
| 2300 | BUILTIN(DateNow) { |
| 2301 | HandleScope scope(isolate); |
| 2302 | return *isolate->factory()->NewNumber(JSDate::CurrentTimeValue(isolate)); |
| 2303 | } |
| 2304 | |
| 2305 | |
| 2306 | // ES6 section 20.3.3.2 Date.parse ( string ) |
| 2307 | BUILTIN(DateParse) { |
| 2308 | HandleScope scope(isolate); |
| 2309 | Handle<String> string; |
| 2310 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2311 | isolate, string, |
| 2312 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2313 | return *isolate->factory()->NewNumber(ParseDateTimeString(string)); |
| 2314 | } |
| 2315 | |
| 2316 | |
| 2317 | // ES6 section 20.3.3.4 Date.UTC (year,month,date,hours,minutes,seconds,ms) |
| 2318 | BUILTIN(DateUTC) { |
| 2319 | HandleScope scope(isolate); |
| 2320 | int const argc = args.length() - 1; |
| 2321 | double year = std::numeric_limits<double>::quiet_NaN(); |
| 2322 | double month = std::numeric_limits<double>::quiet_NaN(); |
| 2323 | double date = 1.0, hours = 0.0, minutes = 0.0, seconds = 0.0, ms = 0.0; |
| 2324 | if (argc >= 1) { |
| 2325 | Handle<Object> year_object; |
| 2326 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object, |
| 2327 | Object::ToNumber(args.at<Object>(1))); |
| 2328 | year = year_object->Number(); |
| 2329 | if (argc >= 2) { |
| 2330 | Handle<Object> month_object; |
| 2331 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object, |
| 2332 | Object::ToNumber(args.at<Object>(2))); |
| 2333 | month = month_object->Number(); |
| 2334 | if (argc >= 3) { |
| 2335 | Handle<Object> date_object; |
| 2336 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2337 | isolate, date_object, Object::ToNumber(args.at<Object>(3))); |
| 2338 | date = date_object->Number(); |
| 2339 | if (argc >= 4) { |
| 2340 | Handle<Object> hours_object; |
| 2341 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2342 | isolate, hours_object, Object::ToNumber(args.at<Object>(4))); |
| 2343 | hours = hours_object->Number(); |
| 2344 | if (argc >= 5) { |
| 2345 | Handle<Object> minutes_object; |
| 2346 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2347 | isolate, minutes_object, Object::ToNumber(args.at<Object>(5))); |
| 2348 | minutes = minutes_object->Number(); |
| 2349 | if (argc >= 6) { |
| 2350 | Handle<Object> seconds_object; |
| 2351 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2352 | isolate, seconds_object, |
| 2353 | Object::ToNumber(args.at<Object>(6))); |
| 2354 | seconds = seconds_object->Number(); |
| 2355 | if (argc >= 7) { |
| 2356 | Handle<Object> ms_object; |
| 2357 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2358 | isolate, ms_object, Object::ToNumber(args.at<Object>(7))); |
| 2359 | ms = ms_object->Number(); |
| 2360 | } |
| 2361 | } |
| 2362 | } |
| 2363 | } |
| 2364 | } |
| 2365 | } |
| 2366 | } |
| 2367 | if (!std::isnan(year)) { |
| 2368 | double const y = DoubleToInteger(year); |
| 2369 | if (0.0 <= y && y <= 99) year = 1900 + y; |
| 2370 | } |
| 2371 | double const day = MakeDay(year, month, date); |
| 2372 | double const time = MakeTime(hours, minutes, seconds, ms); |
| 2373 | return *isolate->factory()->NewNumber(TimeClip(MakeDate(day, time))); |
| 2374 | } |
| 2375 | |
| 2376 | |
| 2377 | // ES6 section 20.3.4.20 Date.prototype.setDate ( date ) |
| 2378 | BUILTIN(DatePrototypeSetDate) { |
| 2379 | HandleScope scope(isolate); |
| 2380 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setDate"); |
| 2381 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 2382 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(value)); |
| 2383 | double time_val = date->value()->Number(); |
| 2384 | if (!std::isnan(time_val)) { |
| 2385 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2386 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2387 | int const days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2388 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 2389 | int year, month, day; |
| 2390 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 2391 | time_val = MakeDate(MakeDay(year, month, value->Number()), time_within_day); |
| 2392 | } |
| 2393 | return SetLocalDateValue(date, time_val); |
| 2394 | } |
| 2395 | |
| 2396 | |
| 2397 | // ES6 section 20.3.4.21 Date.prototype.setFullYear (year, month, date) |
| 2398 | BUILTIN(DatePrototypeSetFullYear) { |
| 2399 | HandleScope scope(isolate); |
| 2400 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setFullYear"); |
| 2401 | int const argc = args.length() - 1; |
| 2402 | Handle<Object> year = args.atOrUndefined(isolate, 1); |
| 2403 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(year)); |
| 2404 | double y = year->Number(), m = 0.0, dt = 1.0; |
| 2405 | int time_within_day = 0; |
| 2406 | if (!std::isnan(date->value()->Number())) { |
| 2407 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 2408 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2409 | int const days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2410 | time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 2411 | int year, month, day; |
| 2412 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 2413 | m = month; |
| 2414 | dt = day; |
| 2415 | } |
| 2416 | if (argc >= 2) { |
| 2417 | Handle<Object> month = args.at<Object>(2); |
| 2418 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 2419 | m = month->Number(); |
| 2420 | if (argc >= 3) { |
| 2421 | Handle<Object> date = args.at<Object>(3); |
| 2422 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 2423 | dt = date->Number(); |
| 2424 | } |
| 2425 | } |
| 2426 | double time_val = MakeDate(MakeDay(y, m, dt), time_within_day); |
| 2427 | return SetLocalDateValue(date, time_val); |
| 2428 | } |
| 2429 | |
| 2430 | |
| 2431 | // ES6 section 20.3.4.22 Date.prototype.setHours(hour, min, sec, ms) |
| 2432 | BUILTIN(DatePrototypeSetHours) { |
| 2433 | HandleScope scope(isolate); |
| 2434 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setHours"); |
| 2435 | int const argc = args.length() - 1; |
| 2436 | Handle<Object> hour = args.atOrUndefined(isolate, 1); |
| 2437 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hour, Object::ToNumber(hour)); |
| 2438 | double h = hour->Number(); |
| 2439 | double time_val = date->value()->Number(); |
| 2440 | if (!std::isnan(time_val)) { |
| 2441 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2442 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2443 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2444 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 2445 | double m = (time_within_day / (60 * 1000)) % 60; |
| 2446 | double s = (time_within_day / 1000) % 60; |
| 2447 | double milli = time_within_day % 1000; |
| 2448 | if (argc >= 2) { |
| 2449 | Handle<Object> min = args.at<Object>(2); |
| 2450 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 2451 | m = min->Number(); |
| 2452 | if (argc >= 3) { |
| 2453 | Handle<Object> sec = args.at<Object>(3); |
| 2454 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 2455 | s = sec->Number(); |
| 2456 | if (argc >= 4) { |
| 2457 | Handle<Object> ms = args.at<Object>(4); |
| 2458 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2459 | milli = ms->Number(); |
| 2460 | } |
| 2461 | } |
| 2462 | } |
| 2463 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 2464 | } |
| 2465 | return SetLocalDateValue(date, time_val); |
| 2466 | } |
| 2467 | |
| 2468 | |
| 2469 | // ES6 section 20.3.4.23 Date.prototype.setMilliseconds(ms) |
| 2470 | BUILTIN(DatePrototypeSetMilliseconds) { |
| 2471 | HandleScope scope(isolate); |
| 2472 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setMilliseconds"); |
| 2473 | Handle<Object> ms = args.atOrUndefined(isolate, 1); |
| 2474 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2475 | double time_val = date->value()->Number(); |
| 2476 | if (!std::isnan(time_val)) { |
| 2477 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2478 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2479 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2480 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 2481 | int h = time_within_day / (60 * 60 * 1000); |
| 2482 | int m = (time_within_day / (60 * 1000)) % 60; |
| 2483 | int s = (time_within_day / 1000) % 60; |
| 2484 | time_val = MakeDate(day, MakeTime(h, m, s, ms->Number())); |
| 2485 | } |
| 2486 | return SetLocalDateValue(date, time_val); |
| 2487 | } |
| 2488 | |
| 2489 | |
| 2490 | // ES6 section 20.3.4.24 Date.prototype.setMinutes ( min, sec, ms ) |
| 2491 | BUILTIN(DatePrototypeSetMinutes) { |
| 2492 | HandleScope scope(isolate); |
| 2493 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setMinutes"); |
| 2494 | int const argc = args.length() - 1; |
| 2495 | Handle<Object> min = args.atOrUndefined(isolate, 1); |
| 2496 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 2497 | double time_val = date->value()->Number(); |
| 2498 | if (!std::isnan(time_val)) { |
| 2499 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2500 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2501 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2502 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 2503 | int h = time_within_day / (60 * 60 * 1000); |
| 2504 | double m = min->Number(); |
| 2505 | double s = (time_within_day / 1000) % 60; |
| 2506 | double milli = time_within_day % 1000; |
| 2507 | if (argc >= 2) { |
| 2508 | Handle<Object> sec = args.at<Object>(2); |
| 2509 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 2510 | s = sec->Number(); |
| 2511 | if (argc >= 3) { |
| 2512 | Handle<Object> ms = args.at<Object>(3); |
| 2513 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2514 | milli = ms->Number(); |
| 2515 | } |
| 2516 | } |
| 2517 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 2518 | } |
| 2519 | return SetLocalDateValue(date, time_val); |
| 2520 | } |
| 2521 | |
| 2522 | |
| 2523 | // ES6 section 20.3.4.25 Date.prototype.setMonth ( month, date ) |
| 2524 | BUILTIN(DatePrototypeSetMonth) { |
| 2525 | HandleScope scope(isolate); |
| 2526 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setMonth"); |
| 2527 | int const argc = args.length() - 1; |
| 2528 | Handle<Object> month = args.atOrUndefined(isolate, 1); |
| 2529 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 2530 | double time_val = date->value()->Number(); |
| 2531 | if (!std::isnan(time_val)) { |
| 2532 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2533 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2534 | int days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2535 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 2536 | int year, unused, day; |
| 2537 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &unused, &day); |
| 2538 | double m = month->Number(); |
| 2539 | double dt = day; |
| 2540 | if (argc >= 2) { |
| 2541 | Handle<Object> date = args.at<Object>(2); |
| 2542 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 2543 | dt = date->Number(); |
| 2544 | } |
| 2545 | time_val = MakeDate(MakeDay(year, m, dt), time_within_day); |
| 2546 | } |
| 2547 | return SetLocalDateValue(date, time_val); |
| 2548 | } |
| 2549 | |
| 2550 | |
| 2551 | // ES6 section 20.3.4.26 Date.prototype.setSeconds ( sec, ms ) |
| 2552 | BUILTIN(DatePrototypeSetSeconds) { |
| 2553 | HandleScope scope(isolate); |
| 2554 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setSeconds"); |
| 2555 | int const argc = args.length() - 1; |
| 2556 | Handle<Object> sec = args.atOrUndefined(isolate, 1); |
| 2557 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 2558 | double time_val = date->value()->Number(); |
| 2559 | if (!std::isnan(time_val)) { |
| 2560 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2561 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2562 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2563 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 2564 | int h = time_within_day / (60 * 60 * 1000); |
| 2565 | double m = (time_within_day / (60 * 1000)) % 60; |
| 2566 | double s = sec->Number(); |
| 2567 | double milli = time_within_day % 1000; |
| 2568 | if (argc >= 2) { |
| 2569 | Handle<Object> ms = args.at<Object>(2); |
| 2570 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2571 | milli = ms->Number(); |
| 2572 | } |
| 2573 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 2574 | } |
| 2575 | return SetLocalDateValue(date, time_val); |
| 2576 | } |
| 2577 | |
| 2578 | |
| 2579 | // ES6 section 20.3.4.27 Date.prototype.setTime ( time ) |
| 2580 | BUILTIN(DatePrototypeSetTime) { |
| 2581 | HandleScope scope(isolate); |
| 2582 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setTime"); |
| 2583 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 2584 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(value)); |
| 2585 | return *JSDate::SetValue(date, TimeClip(value->Number())); |
| 2586 | } |
| 2587 | |
| 2588 | |
| 2589 | // ES6 section 20.3.4.28 Date.prototype.setUTCDate ( date ) |
| 2590 | BUILTIN(DatePrototypeSetUTCDate) { |
| 2591 | HandleScope scope(isolate); |
| 2592 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCDate"); |
| 2593 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 2594 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(value)); |
| 2595 | if (std::isnan(date->value()->Number())) return date->value(); |
| 2596 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 2597 | int const days = isolate->date_cache()->DaysFromTime(time_ms); |
| 2598 | int const time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); |
| 2599 | int year, month, day; |
| 2600 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 2601 | double const time_val = |
| 2602 | MakeDate(MakeDay(year, month, value->Number()), time_within_day); |
| 2603 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2604 | } |
| 2605 | |
| 2606 | |
| 2607 | // ES6 section 20.3.4.29 Date.prototype.setUTCFullYear (year, month, date) |
| 2608 | BUILTIN(DatePrototypeSetUTCFullYear) { |
| 2609 | HandleScope scope(isolate); |
| 2610 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCFullYear"); |
| 2611 | int const argc = args.length() - 1; |
| 2612 | Handle<Object> year = args.atOrUndefined(isolate, 1); |
| 2613 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(year)); |
| 2614 | double y = year->Number(), m = 0.0, dt = 1.0; |
| 2615 | int time_within_day = 0; |
| 2616 | if (!std::isnan(date->value()->Number())) { |
| 2617 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 2618 | int const days = isolate->date_cache()->DaysFromTime(time_ms); |
| 2619 | time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); |
| 2620 | int year, month, day; |
| 2621 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 2622 | m = month; |
| 2623 | dt = day; |
| 2624 | } |
| 2625 | if (argc >= 2) { |
| 2626 | Handle<Object> month = args.at<Object>(2); |
| 2627 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 2628 | m = month->Number(); |
| 2629 | if (argc >= 3) { |
| 2630 | Handle<Object> date = args.at<Object>(3); |
| 2631 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 2632 | dt = date->Number(); |
| 2633 | } |
| 2634 | } |
| 2635 | double const time_val = MakeDate(MakeDay(y, m, dt), time_within_day); |
| 2636 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2637 | } |
| 2638 | |
| 2639 | |
| 2640 | // ES6 section 20.3.4.30 Date.prototype.setUTCHours(hour, min, sec, ms) |
| 2641 | BUILTIN(DatePrototypeSetUTCHours) { |
| 2642 | HandleScope scope(isolate); |
| 2643 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCHours"); |
| 2644 | int const argc = args.length() - 1; |
| 2645 | Handle<Object> hour = args.atOrUndefined(isolate, 1); |
| 2646 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hour, Object::ToNumber(hour)); |
| 2647 | double h = hour->Number(); |
| 2648 | double time_val = date->value()->Number(); |
| 2649 | if (!std::isnan(time_val)) { |
| 2650 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2651 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 2652 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 2653 | double m = (time_within_day / (60 * 1000)) % 60; |
| 2654 | double s = (time_within_day / 1000) % 60; |
| 2655 | double milli = time_within_day % 1000; |
| 2656 | if (argc >= 2) { |
| 2657 | Handle<Object> min = args.at<Object>(2); |
| 2658 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 2659 | m = min->Number(); |
| 2660 | if (argc >= 3) { |
| 2661 | Handle<Object> sec = args.at<Object>(3); |
| 2662 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 2663 | s = sec->Number(); |
| 2664 | if (argc >= 4) { |
| 2665 | Handle<Object> ms = args.at<Object>(4); |
| 2666 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2667 | milli = ms->Number(); |
| 2668 | } |
| 2669 | } |
| 2670 | } |
| 2671 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 2672 | } |
| 2673 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2674 | } |
| 2675 | |
| 2676 | |
| 2677 | // ES6 section 20.3.4.31 Date.prototype.setUTCMilliseconds(ms) |
| 2678 | BUILTIN(DatePrototypeSetUTCMilliseconds) { |
| 2679 | HandleScope scope(isolate); |
| 2680 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMilliseconds"); |
| 2681 | Handle<Object> ms = args.atOrUndefined(isolate, 1); |
| 2682 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2683 | double time_val = date->value()->Number(); |
| 2684 | if (!std::isnan(time_val)) { |
| 2685 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2686 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 2687 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 2688 | int h = time_within_day / (60 * 60 * 1000); |
| 2689 | int m = (time_within_day / (60 * 1000)) % 60; |
| 2690 | int s = (time_within_day / 1000) % 60; |
| 2691 | time_val = MakeDate(day, MakeTime(h, m, s, ms->Number())); |
| 2692 | } |
| 2693 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2694 | } |
| 2695 | |
| 2696 | |
| 2697 | // ES6 section 20.3.4.32 Date.prototype.setUTCMinutes ( min, sec, ms ) |
| 2698 | BUILTIN(DatePrototypeSetUTCMinutes) { |
| 2699 | HandleScope scope(isolate); |
| 2700 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMinutes"); |
| 2701 | int const argc = args.length() - 1; |
| 2702 | Handle<Object> min = args.atOrUndefined(isolate, 1); |
| 2703 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 2704 | double time_val = date->value()->Number(); |
| 2705 | if (!std::isnan(time_val)) { |
| 2706 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2707 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 2708 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 2709 | int h = time_within_day / (60 * 60 * 1000); |
| 2710 | double m = min->Number(); |
| 2711 | double s = (time_within_day / 1000) % 60; |
| 2712 | double milli = time_within_day % 1000; |
| 2713 | if (argc >= 2) { |
| 2714 | Handle<Object> sec = args.at<Object>(2); |
| 2715 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 2716 | s = sec->Number(); |
| 2717 | if (argc >= 3) { |
| 2718 | Handle<Object> ms = args.at<Object>(3); |
| 2719 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2720 | milli = ms->Number(); |
| 2721 | } |
| 2722 | } |
| 2723 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 2724 | } |
| 2725 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2726 | } |
| 2727 | |
| 2728 | |
| 2729 | // ES6 section 20.3.4.31 Date.prototype.setUTCMonth ( month, date ) |
| 2730 | BUILTIN(DatePrototypeSetUTCMonth) { |
| 2731 | HandleScope scope(isolate); |
| 2732 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMonth"); |
| 2733 | int const argc = args.length() - 1; |
| 2734 | Handle<Object> month = args.atOrUndefined(isolate, 1); |
| 2735 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 2736 | double time_val = date->value()->Number(); |
| 2737 | if (!std::isnan(time_val)) { |
| 2738 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2739 | int days = isolate->date_cache()->DaysFromTime(time_ms); |
| 2740 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); |
| 2741 | int year, unused, day; |
| 2742 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &unused, &day); |
| 2743 | double m = month->Number(); |
| 2744 | double dt = day; |
| 2745 | if (argc >= 2) { |
| 2746 | Handle<Object> date = args.at<Object>(2); |
| 2747 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 2748 | dt = date->Number(); |
| 2749 | } |
| 2750 | time_val = MakeDate(MakeDay(year, m, dt), time_within_day); |
| 2751 | } |
| 2752 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2753 | } |
| 2754 | |
| 2755 | |
| 2756 | // ES6 section 20.3.4.34 Date.prototype.setUTCSeconds ( sec, ms ) |
| 2757 | BUILTIN(DatePrototypeSetUTCSeconds) { |
| 2758 | HandleScope scope(isolate); |
| 2759 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCSeconds"); |
| 2760 | int const argc = args.length() - 1; |
| 2761 | Handle<Object> sec = args.atOrUndefined(isolate, 1); |
| 2762 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 2763 | double time_val = date->value()->Number(); |
| 2764 | if (!std::isnan(time_val)) { |
| 2765 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2766 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 2767 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 2768 | int h = time_within_day / (60 * 60 * 1000); |
| 2769 | double m = (time_within_day / (60 * 1000)) % 60; |
| 2770 | double s = sec->Number(); |
| 2771 | double milli = time_within_day % 1000; |
| 2772 | if (argc >= 2) { |
| 2773 | Handle<Object> ms = args.at<Object>(2); |
| 2774 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 2775 | milli = ms->Number(); |
| 2776 | } |
| 2777 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 2778 | } |
| 2779 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 2780 | } |
| 2781 | |
| 2782 | |
| 2783 | // ES6 section 20.3.4.35 Date.prototype.toDateString ( ) |
| 2784 | BUILTIN(DatePrototypeToDateString) { |
| 2785 | HandleScope scope(isolate); |
| 2786 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toDateString"); |
| 2787 | char buffer[128]; |
| 2788 | Vector<char> str(buffer, arraysize(buffer)); |
| 2789 | ToDateString(date->value()->Number(), str, isolate->date_cache(), kDateOnly); |
| 2790 | return *isolate->factory()->NewStringFromAsciiChecked(str.start()); |
| 2791 | } |
| 2792 | |
| 2793 | |
| 2794 | // ES6 section 20.3.4.36 Date.prototype.toISOString ( ) |
| 2795 | BUILTIN(DatePrototypeToISOString) { |
| 2796 | HandleScope scope(isolate); |
| 2797 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toISOString"); |
| 2798 | double const time_val = date->value()->Number(); |
| 2799 | if (std::isnan(time_val)) { |
| 2800 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2801 | isolate, NewRangeError(MessageTemplate::kInvalidTimeValue)); |
| 2802 | } |
| 2803 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 2804 | int year, month, day, weekday, hour, min, sec, ms; |
| 2805 | isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday, |
| 2806 | &hour, &min, &sec, &ms); |
| 2807 | char buffer[128]; |
| 2808 | Vector<char> str(buffer, arraysize(buffer)); |
| 2809 | if (year >= 0 && year <= 9999) { |
| 2810 | SNPrintF(str, "%04d-%02d-%02dT%02d:%02d:%02d.%03dZ", year, month + 1, day, |
| 2811 | hour, min, sec, ms); |
| 2812 | } else if (year < 0) { |
| 2813 | SNPrintF(str, "-%06d-%02d-%02dT%02d:%02d:%02d.%03dZ", -year, month + 1, day, |
| 2814 | hour, min, sec, ms); |
| 2815 | } else { |
| 2816 | SNPrintF(str, "+%06d-%02d-%02dT%02d:%02d:%02d.%03dZ", year, month + 1, day, |
| 2817 | hour, min, sec, ms); |
| 2818 | } |
| 2819 | return *isolate->factory()->NewStringFromAsciiChecked(str.start()); |
| 2820 | } |
| 2821 | |
| 2822 | |
| 2823 | // ES6 section 20.3.4.41 Date.prototype.toString ( ) |
| 2824 | BUILTIN(DatePrototypeToString) { |
| 2825 | HandleScope scope(isolate); |
| 2826 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toString"); |
| 2827 | char buffer[128]; |
| 2828 | Vector<char> str(buffer, arraysize(buffer)); |
| 2829 | ToDateString(date->value()->Number(), str, isolate->date_cache()); |
| 2830 | return *isolate->factory()->NewStringFromAsciiChecked(str.start()); |
| 2831 | } |
| 2832 | |
| 2833 | |
| 2834 | // ES6 section 20.3.4.42 Date.prototype.toTimeString ( ) |
| 2835 | BUILTIN(DatePrototypeToTimeString) { |
| 2836 | HandleScope scope(isolate); |
| 2837 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toTimeString"); |
| 2838 | char buffer[128]; |
| 2839 | Vector<char> str(buffer, arraysize(buffer)); |
| 2840 | ToDateString(date->value()->Number(), str, isolate->date_cache(), kTimeOnly); |
| 2841 | return *isolate->factory()->NewStringFromAsciiChecked(str.start()); |
| 2842 | } |
| 2843 | |
| 2844 | |
| 2845 | // ES6 section 20.3.4.43 Date.prototype.toUTCString ( ) |
| 2846 | BUILTIN(DatePrototypeToUTCString) { |
| 2847 | HandleScope scope(isolate); |
| 2848 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toUTCString"); |
| 2849 | double const time_val = date->value()->Number(); |
| 2850 | if (std::isnan(time_val)) { |
| 2851 | return *isolate->factory()->NewStringFromAsciiChecked("Invalid Date"); |
| 2852 | } |
| 2853 | char buffer[128]; |
| 2854 | Vector<char> str(buffer, arraysize(buffer)); |
| 2855 | int64_t time_ms = static_cast<int64_t>(time_val); |
| 2856 | int year, month, day, weekday, hour, min, sec, ms; |
| 2857 | isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday, |
| 2858 | &hour, &min, &sec, &ms); |
| 2859 | SNPrintF(str, "%s, %02d %s %4d %02d:%02d:%02d GMT", kShortWeekDays[weekday], |
| 2860 | day, kShortMonths[month], year, hour, min, sec); |
| 2861 | return *isolate->factory()->NewStringFromAsciiChecked(str.start()); |
| 2862 | } |
| 2863 | |
| 2864 | |
| 2865 | // ES6 section 20.3.4.44 Date.prototype.valueOf ( ) |
| 2866 | BUILTIN(DatePrototypeValueOf) { |
| 2867 | HandleScope scope(isolate); |
| 2868 | CHECK_RECEIVER(JSDate, date, "Date.prototype.valueOf"); |
| 2869 | return date->value(); |
| 2870 | } |
| 2871 | |
| 2872 | |
| 2873 | // ES6 section 20.3.4.45 Date.prototype [ @@toPrimitive ] ( hint ) |
| 2874 | BUILTIN(DatePrototypeToPrimitive) { |
| 2875 | HandleScope scope(isolate); |
| 2876 | DCHECK_EQ(2, args.length()); |
| 2877 | CHECK_RECEIVER(JSReceiver, receiver, "Date.prototype [ @@toPrimitive ]"); |
| 2878 | Handle<Object> hint = args.at<Object>(1); |
| 2879 | Handle<Object> result; |
| 2880 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 2881 | JSDate::ToPrimitive(receiver, hint)); |
| 2882 | return *result; |
| 2883 | } |
| 2884 | |
| 2885 | |
| 2886 | // ES6 section B.2.4.1 Date.prototype.getYear ( ) |
| 2887 | BUILTIN(DatePrototypeGetYear) { |
| 2888 | HandleScope scope(isolate); |
| 2889 | CHECK_RECEIVER(JSDate, date, "Date.prototype.getYear"); |
| 2890 | double time_val = date->value()->Number(); |
| 2891 | if (std::isnan(time_val)) return date->value(); |
| 2892 | int64_t time_ms = static_cast<int64_t>(time_val); |
| 2893 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2894 | int days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2895 | int year, month, day; |
| 2896 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 2897 | return Smi::FromInt(year - 1900); |
| 2898 | } |
| 2899 | |
| 2900 | |
| 2901 | // ES6 section B.2.4.2 Date.prototype.setYear ( year ) |
| 2902 | BUILTIN(DatePrototypeSetYear) { |
| 2903 | HandleScope scope(isolate); |
| 2904 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setYear"); |
| 2905 | Handle<Object> year = args.atOrUndefined(isolate, 1); |
| 2906 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(year)); |
| 2907 | double m = 0.0, dt = 1.0, y = year->Number(); |
| 2908 | if (0.0 <= y && y <= 99.0) { |
| 2909 | y = 1900.0 + DoubleToInteger(y); |
| 2910 | } |
| 2911 | int time_within_day = 0; |
| 2912 | if (!std::isnan(date->value()->Number())) { |
| 2913 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 2914 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 2915 | int const days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 2916 | time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 2917 | int year, month, day; |
| 2918 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 2919 | m = month; |
| 2920 | dt = day; |
| 2921 | } |
| 2922 | double time_val = MakeDate(MakeDay(y, m, dt), time_within_day); |
| 2923 | return SetLocalDateValue(date, time_val); |
| 2924 | } |
| 2925 | |
| 2926 | |
| 2927 | // static |
| 2928 | void Builtins::Generate_DatePrototypeGetDate(MacroAssembler* masm) { |
| 2929 | Generate_DatePrototype_GetField(masm, JSDate::kDay); |
| 2930 | } |
| 2931 | |
| 2932 | |
| 2933 | // static |
| 2934 | void Builtins::Generate_DatePrototypeGetDay(MacroAssembler* masm) { |
| 2935 | Generate_DatePrototype_GetField(masm, JSDate::kWeekday); |
| 2936 | } |
| 2937 | |
| 2938 | |
| 2939 | // static |
| 2940 | void Builtins::Generate_DatePrototypeGetFullYear(MacroAssembler* masm) { |
| 2941 | Generate_DatePrototype_GetField(masm, JSDate::kYear); |
| 2942 | } |
| 2943 | |
| 2944 | |
| 2945 | // static |
| 2946 | void Builtins::Generate_DatePrototypeGetHours(MacroAssembler* masm) { |
| 2947 | Generate_DatePrototype_GetField(masm, JSDate::kHour); |
| 2948 | } |
| 2949 | |
| 2950 | |
| 2951 | // static |
| 2952 | void Builtins::Generate_DatePrototypeGetMilliseconds(MacroAssembler* masm) { |
| 2953 | Generate_DatePrototype_GetField(masm, JSDate::kMillisecond); |
| 2954 | } |
| 2955 | |
| 2956 | |
| 2957 | // static |
| 2958 | void Builtins::Generate_DatePrototypeGetMinutes(MacroAssembler* masm) { |
| 2959 | Generate_DatePrototype_GetField(masm, JSDate::kMinute); |
| 2960 | } |
| 2961 | |
| 2962 | |
| 2963 | // static |
| 2964 | void Builtins::Generate_DatePrototypeGetMonth(MacroAssembler* masm) { |
| 2965 | Generate_DatePrototype_GetField(masm, JSDate::kMonth); |
| 2966 | } |
| 2967 | |
| 2968 | |
| 2969 | // static |
| 2970 | void Builtins::Generate_DatePrototypeGetSeconds(MacroAssembler* masm) { |
| 2971 | Generate_DatePrototype_GetField(masm, JSDate::kSecond); |
| 2972 | } |
| 2973 | |
| 2974 | |
| 2975 | // static |
| 2976 | void Builtins::Generate_DatePrototypeGetTime(MacroAssembler* masm) { |
| 2977 | Generate_DatePrototype_GetField(masm, JSDate::kDateValue); |
| 2978 | } |
| 2979 | |
| 2980 | |
| 2981 | // static |
| 2982 | void Builtins::Generate_DatePrototypeGetTimezoneOffset(MacroAssembler* masm) { |
| 2983 | Generate_DatePrototype_GetField(masm, JSDate::kTimezoneOffset); |
| 2984 | } |
| 2985 | |
| 2986 | |
| 2987 | // static |
| 2988 | void Builtins::Generate_DatePrototypeGetUTCDate(MacroAssembler* masm) { |
| 2989 | Generate_DatePrototype_GetField(masm, JSDate::kDayUTC); |
| 2990 | } |
| 2991 | |
| 2992 | |
| 2993 | // static |
| 2994 | void Builtins::Generate_DatePrototypeGetUTCDay(MacroAssembler* masm) { |
| 2995 | Generate_DatePrototype_GetField(masm, JSDate::kWeekdayUTC); |
| 2996 | } |
| 2997 | |
| 2998 | |
| 2999 | // static |
| 3000 | void Builtins::Generate_DatePrototypeGetUTCFullYear(MacroAssembler* masm) { |
| 3001 | Generate_DatePrototype_GetField(masm, JSDate::kYearUTC); |
| 3002 | } |
| 3003 | |
| 3004 | |
| 3005 | // static |
| 3006 | void Builtins::Generate_DatePrototypeGetUTCHours(MacroAssembler* masm) { |
| 3007 | Generate_DatePrototype_GetField(masm, JSDate::kHourUTC); |
| 3008 | } |
| 3009 | |
| 3010 | |
| 3011 | // static |
| 3012 | void Builtins::Generate_DatePrototypeGetUTCMilliseconds(MacroAssembler* masm) { |
| 3013 | Generate_DatePrototype_GetField(masm, JSDate::kMillisecondUTC); |
| 3014 | } |
| 3015 | |
| 3016 | |
| 3017 | // static |
| 3018 | void Builtins::Generate_DatePrototypeGetUTCMinutes(MacroAssembler* masm) { |
| 3019 | Generate_DatePrototype_GetField(masm, JSDate::kMinuteUTC); |
| 3020 | } |
| 3021 | |
| 3022 | |
| 3023 | // static |
| 3024 | void Builtins::Generate_DatePrototypeGetUTCMonth(MacroAssembler* masm) { |
| 3025 | Generate_DatePrototype_GetField(masm, JSDate::kMonthUTC); |
| 3026 | } |
| 3027 | |
| 3028 | |
| 3029 | // static |
| 3030 | void Builtins::Generate_DatePrototypeGetUTCSeconds(MacroAssembler* masm) { |
| 3031 | Generate_DatePrototype_GetField(masm, JSDate::kSecondUTC); |
| 3032 | } |
| 3033 | |
| 3034 | |
| 3035 | namespace { |
| 3036 | |
| 3037 | // ES6 section 19.2.1.1.1 CreateDynamicFunction |
| 3038 | MaybeHandle<JSFunction> CreateDynamicFunction( |
| 3039 | Isolate* isolate, |
| 3040 | BuiltinArguments<BuiltinExtraArguments::kTargetAndNewTarget> args, |
| 3041 | const char* token) { |
| 3042 | // Compute number of arguments, ignoring the receiver. |
| 3043 | DCHECK_LE(1, args.length()); |
| 3044 | int const argc = args.length() - 1; |
| 3045 | |
| 3046 | // Build the source string. |
| 3047 | Handle<String> source; |
| 3048 | { |
| 3049 | IncrementalStringBuilder builder(isolate); |
| 3050 | builder.AppendCharacter('('); |
| 3051 | builder.AppendCString(token); |
| 3052 | builder.AppendCharacter('('); |
| 3053 | bool parenthesis_in_arg_string = false; |
| 3054 | if (argc > 1) { |
| 3055 | for (int i = 1; i < argc; ++i) { |
| 3056 | if (i > 1) builder.AppendCharacter(','); |
| 3057 | Handle<String> param; |
| 3058 | ASSIGN_RETURN_ON_EXCEPTION( |
| 3059 | isolate, param, Object::ToString(isolate, args.at<Object>(i)), |
| 3060 | JSFunction); |
| 3061 | param = String::Flatten(param); |
| 3062 | builder.AppendString(param); |
| 3063 | // If the formal parameters string include ) - an illegal |
| 3064 | // character - it may make the combined function expression |
| 3065 | // compile. We avoid this problem by checking for this early on. |
| 3066 | DisallowHeapAllocation no_gc; // Ensure vectors stay valid. |
| 3067 | String::FlatContent param_content = param->GetFlatContent(); |
| 3068 | for (int i = 0, length = param->length(); i < length; ++i) { |
| 3069 | if (param_content.Get(i) == ')') { |
| 3070 | parenthesis_in_arg_string = true; |
| 3071 | break; |
| 3072 | } |
| 3073 | } |
| 3074 | } |
| 3075 | // If the formal parameters include an unbalanced block comment, the |
| 3076 | // function must be rejected. Since JavaScript does not allow nested |
| 3077 | // comments we can include a trailing block comment to catch this. |
| 3078 | builder.AppendCString("\n/**/"); |
| 3079 | } |
| 3080 | builder.AppendCString(") {\n"); |
| 3081 | if (argc > 0) { |
| 3082 | Handle<String> body; |
| 3083 | ASSIGN_RETURN_ON_EXCEPTION( |
| 3084 | isolate, body, Object::ToString(isolate, args.at<Object>(argc)), |
| 3085 | JSFunction); |
| 3086 | builder.AppendString(body); |
| 3087 | } |
| 3088 | builder.AppendCString("\n})"); |
| 3089 | ASSIGN_RETURN_ON_EXCEPTION(isolate, source, builder.Finish(), JSFunction); |
| 3090 | |
| 3091 | // The SyntaxError must be thrown after all the (observable) ToString |
| 3092 | // conversions are done. |
| 3093 | if (parenthesis_in_arg_string) { |
| 3094 | THROW_NEW_ERROR(isolate, |
| 3095 | NewSyntaxError(MessageTemplate::kParenthesisInArgString), |
| 3096 | JSFunction); |
| 3097 | } |
| 3098 | } |
| 3099 | |
| 3100 | // Compile the string in the constructor and not a helper so that errors to |
| 3101 | // come from here. |
| 3102 | Handle<JSFunction> target = args.target(); |
| 3103 | Handle<JSObject> target_global_proxy(target->global_proxy(), isolate); |
| 3104 | Handle<JSFunction> function; |
| 3105 | { |
| 3106 | ASSIGN_RETURN_ON_EXCEPTION( |
| 3107 | isolate, function, |
| 3108 | CompileString(handle(target->native_context(), isolate), source, |
| 3109 | ONLY_SINGLE_FUNCTION_LITERAL), |
| 3110 | JSFunction); |
| 3111 | Handle<Object> result; |
| 3112 | ASSIGN_RETURN_ON_EXCEPTION( |
| 3113 | isolate, result, |
| 3114 | Execution::Call(isolate, function, target_global_proxy, 0, nullptr), |
| 3115 | JSFunction); |
| 3116 | function = Handle<JSFunction>::cast(result); |
| 3117 | function->shared()->set_name_should_print_as_anonymous(true); |
| 3118 | } |
| 3119 | |
| 3120 | // If new.target is equal to target then the function created |
| 3121 | // is already correctly setup and nothing else should be done |
| 3122 | // here. But if new.target is not equal to target then we are |
| 3123 | // have a Function builtin subclassing case and therefore the |
| 3124 | // function has wrong initial map. To fix that we create a new |
| 3125 | // function object with correct initial map. |
| 3126 | Handle<Object> unchecked_new_target = args.new_target(); |
| 3127 | if (!unchecked_new_target->IsUndefined() && |
| 3128 | !unchecked_new_target.is_identical_to(target)) { |
| 3129 | Handle<JSReceiver> new_target = |
| 3130 | Handle<JSReceiver>::cast(unchecked_new_target); |
| 3131 | Handle<Map> initial_map; |
| 3132 | ASSIGN_RETURN_ON_EXCEPTION( |
| 3133 | isolate, initial_map, |
| 3134 | JSFunction::GetDerivedMap(isolate, target, new_target), JSFunction); |
| 3135 | |
| 3136 | Handle<SharedFunctionInfo> shared_info(function->shared(), isolate); |
| 3137 | Handle<Map> map = Map::AsLanguageMode( |
| 3138 | initial_map, shared_info->language_mode(), shared_info->kind()); |
| 3139 | |
| 3140 | Handle<Context> context(function->context(), isolate); |
| 3141 | function = isolate->factory()->NewFunctionFromSharedFunctionInfo( |
| 3142 | map, shared_info, context, NOT_TENURED); |
| 3143 | } |
| 3144 | return function; |
| 3145 | } |
| 3146 | |
| 3147 | } // namespace |
| 3148 | |
| 3149 | |
| 3150 | // ES6 section 19.2.1.1 Function ( p1, p2, ... , pn, body ) |
| 3151 | BUILTIN(FunctionConstructor) { |
| 3152 | HandleScope scope(isolate); |
| 3153 | Handle<JSFunction> result; |
| 3154 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3155 | isolate, result, CreateDynamicFunction(isolate, args, "function")); |
| 3156 | return *result; |
| 3157 | } |
| 3158 | |
| 3159 | |
| 3160 | // ES6 section 19.2.3.2 Function.prototype.bind ( thisArg, ...args ) |
| 3161 | BUILTIN(FunctionPrototypeBind) { |
| 3162 | HandleScope scope(isolate); |
| 3163 | DCHECK_LE(1, args.length()); |
| 3164 | if (!args.receiver()->IsCallable()) { |
| 3165 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3166 | isolate, NewTypeError(MessageTemplate::kFunctionBind)); |
| 3167 | } |
| 3168 | |
| 3169 | // Allocate the bound function with the given {this_arg} and {args}. |
| 3170 | Handle<JSReceiver> target = args.at<JSReceiver>(0); |
| 3171 | Handle<Object> this_arg = isolate->factory()->undefined_value(); |
| 3172 | ScopedVector<Handle<Object>> argv(std::max(0, args.length() - 2)); |
| 3173 | if (args.length() > 1) { |
| 3174 | this_arg = args.at<Object>(1); |
| 3175 | for (int i = 2; i < args.length(); ++i) { |
| 3176 | argv[i - 2] = args.at<Object>(i); |
| 3177 | } |
| 3178 | } |
| 3179 | Handle<JSBoundFunction> function; |
| 3180 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3181 | isolate, function, |
| 3182 | isolate->factory()->NewJSBoundFunction(target, this_arg, argv)); |
| 3183 | |
| 3184 | // TODO(bmeurer): Optimize the rest for the common cases where {target} is |
| 3185 | // a function with some initial map or even a bound function. |
| 3186 | // Setup the "length" property based on the "length" of the {target}. |
| 3187 | Handle<Object> length(Smi::FromInt(0), isolate); |
| 3188 | Maybe<bool> target_has_length = |
| 3189 | JSReceiver::HasOwnProperty(target, isolate->factory()->length_string()); |
| 3190 | if (!target_has_length.IsJust()) { |
| 3191 | return isolate->heap()->exception(); |
| 3192 | } else if (target_has_length.FromJust()) { |
| 3193 | Handle<Object> target_length; |
| 3194 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3195 | isolate, target_length, |
| 3196 | JSReceiver::GetProperty(target, isolate->factory()->length_string())); |
| 3197 | if (target_length->IsNumber()) { |
| 3198 | length = isolate->factory()->NewNumber(std::max( |
| 3199 | 0.0, DoubleToInteger(target_length->Number()) - argv.length())); |
| 3200 | } |
| 3201 | } |
| 3202 | function->set_length(*length); |
| 3203 | |
| 3204 | // Setup the "name" property based on the "name" of the {target}. |
| 3205 | Handle<Object> target_name; |
| 3206 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3207 | isolate, target_name, |
| 3208 | JSReceiver::GetProperty(target, isolate->factory()->name_string())); |
| 3209 | Handle<String> name; |
| 3210 | if (!target_name->IsString()) { |
| 3211 | name = isolate->factory()->bound__string(); |
| 3212 | } else { |
| 3213 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3214 | isolate, name, Name::ToFunctionName(Handle<String>::cast(target_name))); |
| 3215 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3216 | isolate, name, isolate->factory()->NewConsString( |
| 3217 | isolate->factory()->bound__string(), name)); |
| 3218 | } |
| 3219 | function->set_name(*name); |
| 3220 | return *function; |
| 3221 | } |
| 3222 | |
| 3223 | |
| 3224 | // ES6 section 19.2.3.5 Function.prototype.toString ( ) |
| 3225 | BUILTIN(FunctionPrototypeToString) { |
| 3226 | HandleScope scope(isolate); |
| 3227 | Handle<Object> receiver = args.receiver(); |
| 3228 | if (receiver->IsJSBoundFunction()) { |
| 3229 | return *JSBoundFunction::ToString(Handle<JSBoundFunction>::cast(receiver)); |
| 3230 | } else if (receiver->IsJSFunction()) { |
| 3231 | return *JSFunction::ToString(Handle<JSFunction>::cast(receiver)); |
| 3232 | } |
| 3233 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3234 | isolate, NewTypeError(MessageTemplate::kNotGeneric, |
| 3235 | isolate->factory()->NewStringFromAsciiChecked( |
| 3236 | "Function.prototype.toString"))); |
| 3237 | } |
| 3238 | |
| 3239 | |
| 3240 | // ES6 section 25.2.1.1 GeneratorFunction (p1, p2, ... , pn, body) |
| 3241 | BUILTIN(GeneratorFunctionConstructor) { |
| 3242 | HandleScope scope(isolate); |
| 3243 | Handle<JSFunction> result; |
| 3244 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3245 | isolate, result, CreateDynamicFunction(isolate, args, "function*")); |
| 3246 | return *result; |
| 3247 | } |
| 3248 | |
| 3249 | |
| 3250 | // ES6 section 19.4.1.1 Symbol ( [ description ] ) for the [[Call]] case. |
| 3251 | BUILTIN(SymbolConstructor) { |
| 3252 | HandleScope scope(isolate); |
| 3253 | Handle<Symbol> result = isolate->factory()->NewSymbol(); |
| 3254 | Handle<Object> description = args.atOrUndefined(isolate, 1); |
| 3255 | if (!description->IsUndefined()) { |
| 3256 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, description, |
| 3257 | Object::ToString(isolate, description)); |
| 3258 | result->set_name(*description); |
| 3259 | } |
| 3260 | return *result; |
| 3261 | } |
| 3262 | |
| 3263 | |
| 3264 | // ES6 section 19.4.1.1 Symbol ( [ description ] ) for the [[Construct]] case. |
| 3265 | BUILTIN(SymbolConstructor_ConstructStub) { |
| 3266 | HandleScope scope(isolate); |
| 3267 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3268 | isolate, NewTypeError(MessageTemplate::kNotConstructor, |
| 3269 | isolate->factory()->Symbol_string())); |
| 3270 | } |
| 3271 | |
| 3272 | |
| 3273 | // ES6 19.1.3.6 Object.prototype.toString |
| 3274 | BUILTIN(ObjectProtoToString) { |
| 3275 | HandleScope scope(isolate); |
| 3276 | Handle<Object> object = args.at<Object>(0); |
| 3277 | Handle<String> result; |
| 3278 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3279 | isolate, result, JSObject::ObjectProtoToString(isolate, object)); |
| 3280 | return *result; |
| 3281 | } |
| 3282 | |
| 3283 | |
| 3284 | // ES6 section 24.1.2.1 ArrayBuffer ( length ) for the [[Call]] case. |
| 3285 | BUILTIN(ArrayBufferConstructor) { |
| 3286 | HandleScope scope(isolate); |
| 3287 | Handle<JSFunction> target = args.target(); |
| 3288 | DCHECK(*target == target->native_context()->array_buffer_fun() || |
| 3289 | *target == target->native_context()->shared_array_buffer_fun()); |
| 3290 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3291 | isolate, NewTypeError(MessageTemplate::kConstructorNotFunction, |
| 3292 | handle(target->shared()->name(), isolate))); |
| 3293 | } |
| 3294 | |
| 3295 | |
| 3296 | // ES6 section 24.1.2.1 ArrayBuffer ( length ) for the [[Construct]] case. |
| 3297 | BUILTIN(ArrayBufferConstructor_ConstructStub) { |
| 3298 | HandleScope scope(isolate); |
| 3299 | Handle<JSFunction> target = args.target(); |
| 3300 | Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 3301 | Handle<Object> length = args.atOrUndefined(isolate, 1); |
| 3302 | DCHECK(*target == target->native_context()->array_buffer_fun() || |
| 3303 | *target == target->native_context()->shared_array_buffer_fun()); |
| 3304 | Handle<Object> number_length; |
| 3305 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, number_length, |
| 3306 | Object::ToInteger(isolate, length)); |
| 3307 | if (number_length->Number() < 0.0) { |
| 3308 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3309 | isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength)); |
| 3310 | } |
| 3311 | Handle<Map> initial_map; |
| 3312 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3313 | isolate, initial_map, |
| 3314 | JSFunction::GetDerivedMap(isolate, target, new_target)); |
| 3315 | size_t byte_length; |
| 3316 | if (!TryNumberToSize(isolate, *number_length, &byte_length)) { |
| 3317 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3318 | isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength)); |
| 3319 | } |
| 3320 | Handle<JSArrayBuffer> result = Handle<JSArrayBuffer>::cast( |
| 3321 | isolate->factory()->NewJSObjectFromMap(initial_map)); |
| 3322 | SharedFlag shared_flag = |
| 3323 | (*target == target->native_context()->array_buffer_fun()) |
| 3324 | ? SharedFlag::kNotShared |
| 3325 | : SharedFlag::kShared; |
| 3326 | if (!JSArrayBuffer::SetupAllocatingData(result, isolate, byte_length, true, |
| 3327 | shared_flag)) { |
| 3328 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3329 | isolate, NewRangeError(MessageTemplate::kArrayBufferAllocationFailed)); |
| 3330 | } |
| 3331 | return *result; |
| 3332 | } |
| 3333 | |
| 3334 | |
| 3335 | // ES6 section 24.1.3.1 ArrayBuffer.isView ( arg ) |
| 3336 | BUILTIN(ArrayBufferIsView) { |
| 3337 | SealHandleScope shs(isolate); |
| 3338 | DCHECK_EQ(2, args.length()); |
| 3339 | Object* arg = args[1]; |
| 3340 | return isolate->heap()->ToBoolean(arg->IsJSArrayBufferView()); |
| 3341 | } |
| 3342 | |
| 3343 | |
| 3344 | // ES6 section 26.2.1.1 Proxy ( target, handler ) for the [[Call]] case. |
| 3345 | BUILTIN(ProxyConstructor) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3346 | HandleScope scope(isolate); |
| 3347 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3348 | isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3349 | NewTypeError(MessageTemplate::kConstructorNotFunction, |
| 3350 | isolate->factory()->NewStringFromAsciiChecked("Proxy"))); |
| 3351 | } |
| 3352 | |
| 3353 | |
| 3354 | // ES6 section 26.2.1.1 Proxy ( target, handler ) for the [[Construct]] case. |
| 3355 | BUILTIN(ProxyConstructor_ConstructStub) { |
| 3356 | HandleScope scope(isolate); |
| 3357 | DCHECK(isolate->proxy_function()->IsConstructor()); |
| 3358 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 3359 | Handle<Object> handler = args.atOrUndefined(isolate, 2); |
| 3360 | Handle<JSProxy> result; |
| 3361 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 3362 | JSProxy::New(isolate, target, handler)); |
| 3363 | return *result; |
| 3364 | } |
| 3365 | |
| 3366 | |
| 3367 | // ----------------------------------------------------------------------------- |
| 3368 | // Throwers for restricted function properties and strict arguments object |
| 3369 | // properties |
| 3370 | |
| 3371 | |
| 3372 | BUILTIN(RestrictedFunctionPropertiesThrower) { |
| 3373 | HandleScope scope(isolate); |
| 3374 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3375 | isolate, NewTypeError(MessageTemplate::kRestrictedFunctionProperties)); |
| 3376 | } |
| 3377 | |
| 3378 | |
| 3379 | BUILTIN(RestrictedStrictArgumentsPropertiesThrower) { |
| 3380 | HandleScope scope(isolate); |
| 3381 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3382 | isolate, NewTypeError(MessageTemplate::kStrictPoisonPill)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3383 | } |
| 3384 | |
| 3385 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3386 | // ----------------------------------------------------------------------------- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3387 | // |
| 3388 | |
| 3389 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3390 | namespace { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3391 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3392 | template <bool is_construct> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3393 | MUST_USE_RESULT MaybeHandle<Object> HandleApiCallHelper( |
| 3394 | Isolate* isolate, BuiltinArguments<BuiltinExtraArguments::kTarget> args) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3395 | HandleScope scope(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3396 | Handle<JSFunction> function = args.target(); |
| 3397 | DCHECK(args.receiver()->IsJSReceiver()); |
| 3398 | // TODO(ishell): turn this back to a DCHECK. |
| 3399 | CHECK(function->shared()->IsApiFunction()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3400 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3401 | Handle<FunctionTemplateInfo> fun_data( |
| 3402 | function->shared()->get_api_func_data(), isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3403 | if (is_construct) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3404 | ASSIGN_RETURN_ON_EXCEPTION( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3405 | isolate, fun_data, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3406 | ApiNatives::ConfigureInstance(isolate, fun_data, |
| 3407 | Handle<JSObject>::cast(args.receiver())), |
| 3408 | Object); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3409 | } |
| 3410 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3411 | if (!is_construct && !fun_data->accept_any_receiver()) { |
| 3412 | Handle<JSReceiver> receiver = args.at<JSReceiver>(0); |
| 3413 | if (receiver->IsJSObject() && receiver->IsAccessCheckNeeded()) { |
| 3414 | Handle<JSObject> js_receiver = Handle<JSObject>::cast(receiver); |
| 3415 | if (!isolate->MayAccess(handle(isolate->context()), js_receiver)) { |
| 3416 | isolate->ReportFailedAccessCheck(js_receiver); |
| 3417 | RETURN_EXCEPTION_IF_SCHEDULED_EXCEPTION(isolate, Object); |
| 3418 | } |
| 3419 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3420 | } |
| 3421 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3422 | Object* raw_holder = fun_data->GetCompatibleReceiver(isolate, args[0]); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3423 | |
| 3424 | if (raw_holder->IsNull()) { |
| 3425 | // This function cannot be called with the given receiver. Abort! |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3426 | THROW_NEW_ERROR(isolate, NewTypeError(MessageTemplate::kIllegalInvocation), |
| 3427 | Object); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3428 | } |
| 3429 | |
| 3430 | Object* raw_call_data = fun_data->call_code(); |
| 3431 | if (!raw_call_data->IsUndefined()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3432 | // TODO(ishell): remove this debugging code. |
| 3433 | CHECK(raw_call_data->IsCallHandlerInfo()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3434 | CallHandlerInfo* call_data = CallHandlerInfo::cast(raw_call_data); |
| 3435 | Object* callback_obj = call_data->callback(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3436 | v8::FunctionCallback callback = |
| 3437 | v8::ToCData<v8::FunctionCallback>(callback_obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3438 | Object* data_obj = call_data->data(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3439 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3440 | LOG(isolate, ApiObjectAccess("call", JSObject::cast(*args.receiver()))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3441 | DCHECK(raw_holder->IsJSObject()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 3442 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3443 | FunctionCallbackArguments custom(isolate, |
| 3444 | data_obj, |
| 3445 | *function, |
| 3446 | raw_holder, |
| 3447 | &args[0] - 1, |
| 3448 | args.length() - 1, |
| 3449 | is_construct); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 3450 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3451 | v8::Local<v8::Value> value = custom.Call(callback); |
| 3452 | Handle<Object> result; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3453 | if (value.IsEmpty()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3454 | result = isolate->factory()->undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3455 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3456 | result = v8::Utils::OpenHandle(*value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3457 | result->VerifyApiCallResultType(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3458 | } |
| 3459 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3460 | RETURN_EXCEPTION_IF_SCHEDULED_EXCEPTION(isolate, Object); |
| 3461 | if (!is_construct || result->IsJSObject()) { |
| 3462 | return scope.CloseAndEscape(result); |
| 3463 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3464 | } |
| 3465 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3466 | return scope.CloseAndEscape(args.receiver()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3467 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3468 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3469 | } // namespace |
| 3470 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3471 | |
| 3472 | BUILTIN(HandleApiCall) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3473 | HandleScope scope(isolate); |
| 3474 | Handle<Object> result; |
| 3475 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 3476 | HandleApiCallHelper<false>(isolate, args)); |
| 3477 | return *result; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3478 | } |
| 3479 | |
| 3480 | |
| 3481 | BUILTIN(HandleApiCallConstruct) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3482 | HandleScope scope(isolate); |
| 3483 | Handle<Object> result; |
| 3484 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 3485 | HandleApiCallHelper<true>(isolate, args)); |
| 3486 | return *result; |
| 3487 | } |
| 3488 | |
| 3489 | |
| 3490 | Handle<Code> Builtins::CallFunction(ConvertReceiverMode mode) { |
| 3491 | switch (mode) { |
| 3492 | case ConvertReceiverMode::kNullOrUndefined: |
| 3493 | return CallFunction_ReceiverIsNullOrUndefined(); |
| 3494 | case ConvertReceiverMode::kNotNullOrUndefined: |
| 3495 | return CallFunction_ReceiverIsNotNullOrUndefined(); |
| 3496 | case ConvertReceiverMode::kAny: |
| 3497 | return CallFunction_ReceiverIsAny(); |
| 3498 | } |
| 3499 | UNREACHABLE(); |
| 3500 | return Handle<Code>::null(); |
| 3501 | } |
| 3502 | |
| 3503 | |
| 3504 | Handle<Code> Builtins::Call(ConvertReceiverMode mode) { |
| 3505 | switch (mode) { |
| 3506 | case ConvertReceiverMode::kNullOrUndefined: |
| 3507 | return Call_ReceiverIsNullOrUndefined(); |
| 3508 | case ConvertReceiverMode::kNotNullOrUndefined: |
| 3509 | return Call_ReceiverIsNotNullOrUndefined(); |
| 3510 | case ConvertReceiverMode::kAny: |
| 3511 | return Call_ReceiverIsAny(); |
| 3512 | } |
| 3513 | UNREACHABLE(); |
| 3514 | return Handle<Code>::null(); |
| 3515 | } |
| 3516 | |
| 3517 | |
| 3518 | namespace { |
| 3519 | |
| 3520 | class RelocatableArguments |
| 3521 | : public BuiltinArguments<BuiltinExtraArguments::kTarget>, |
| 3522 | public Relocatable { |
| 3523 | public: |
| 3524 | RelocatableArguments(Isolate* isolate, int length, Object** arguments) |
| 3525 | : BuiltinArguments<BuiltinExtraArguments::kTarget>(length, arguments), |
| 3526 | Relocatable(isolate) {} |
| 3527 | |
| 3528 | virtual inline void IterateInstance(ObjectVisitor* v) { |
| 3529 | if (length() == 0) return; |
| 3530 | v->VisitPointers(lowest_address(), highest_address() + 1); |
| 3531 | } |
| 3532 | |
| 3533 | private: |
| 3534 | DISALLOW_COPY_AND_ASSIGN(RelocatableArguments); |
| 3535 | }; |
| 3536 | |
| 3537 | } // namespace |
| 3538 | |
| 3539 | |
| 3540 | MaybeHandle<Object> Builtins::InvokeApiFunction(Handle<JSFunction> function, |
| 3541 | Handle<Object> receiver, |
| 3542 | int argc, |
| 3543 | Handle<Object> args[]) { |
| 3544 | // Construct BuiltinArguments object: function, arguments reversed, receiver. |
| 3545 | const int kBufferSize = 32; |
| 3546 | Object* small_argv[kBufferSize]; |
| 3547 | Object** argv; |
| 3548 | if (argc + 2 <= kBufferSize) { |
| 3549 | argv = small_argv; |
| 3550 | } else { |
| 3551 | argv = new Object* [argc + 2]; |
| 3552 | } |
| 3553 | argv[argc + 1] = *receiver; |
| 3554 | for (int i = 0; i < argc; ++i) { |
| 3555 | argv[argc - i] = *args[i]; |
| 3556 | } |
| 3557 | argv[0] = *function; |
| 3558 | MaybeHandle<Object> result; |
| 3559 | { |
| 3560 | auto isolate = function->GetIsolate(); |
| 3561 | RelocatableArguments arguments(isolate, argc + 2, &argv[argc + 1]); |
| 3562 | result = HandleApiCallHelper<false>(isolate, arguments); |
| 3563 | } |
| 3564 | if (argv != small_argv) { |
| 3565 | delete[] argv; |
| 3566 | } |
| 3567 | return result; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3568 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3569 | |
| 3570 | |
| 3571 | // Helper function to handle calls to non-function objects created through the |
| 3572 | // API. The object can be called as either a constructor (using new) or just as |
| 3573 | // a function (without new). |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3574 | MUST_USE_RESULT static Object* HandleApiCallAsFunctionOrConstructor( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3575 | Isolate* isolate, bool is_construct_call, |
| 3576 | BuiltinArguments<BuiltinExtraArguments::kNone> args) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3577 | Heap* heap = isolate->heap(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3578 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3579 | Handle<Object> receiver = args.receiver(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3580 | |
| 3581 | // Get the object called. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3582 | JSObject* obj = JSObject::cast(*receiver); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3583 | |
| 3584 | // Get the invocation callback from the function descriptor that was |
| 3585 | // used to create the called object. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3586 | DCHECK(obj->map()->is_callable()); |
| 3587 | JSFunction* constructor = JSFunction::cast(obj->map()->GetConstructor()); |
| 3588 | // TODO(ishell): turn this back to a DCHECK. |
| 3589 | CHECK(constructor->shared()->IsApiFunction()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3590 | Object* handler = |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3591 | constructor->shared()->get_api_func_data()->instance_call_handler(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3592 | DCHECK(!handler->IsUndefined()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3593 | // TODO(ishell): remove this debugging code. |
| 3594 | CHECK(handler->IsCallHandlerInfo()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3595 | CallHandlerInfo* call_data = CallHandlerInfo::cast(handler); |
| 3596 | Object* callback_obj = call_data->callback(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3597 | v8::FunctionCallback callback = |
| 3598 | v8::ToCData<v8::FunctionCallback>(callback_obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3599 | |
| 3600 | // Get the data for the call and perform the callback. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3601 | Object* result; |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 3602 | { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3603 | HandleScope scope(isolate); |
| 3604 | LOG(isolate, ApiObjectAccess("call non-function", obj)); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 3605 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3606 | FunctionCallbackArguments custom(isolate, |
| 3607 | call_data->data(), |
| 3608 | constructor, |
| 3609 | obj, |
| 3610 | &args[0] - 1, |
| 3611 | args.length() - 1, |
| 3612 | is_construct_call); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3613 | v8::Local<v8::Value> value = custom.Call(callback); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3614 | if (value.IsEmpty()) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3615 | result = heap->undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3616 | } else { |
| 3617 | result = *reinterpret_cast<Object**>(*value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3618 | result->VerifyApiCallResultType(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3619 | } |
| 3620 | } |
| 3621 | // Check for exceptions and return result. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3622 | RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3623 | return result; |
| 3624 | } |
| 3625 | |
| 3626 | |
| 3627 | // Handle calls to non-function objects created through the API. This delegate |
| 3628 | // function is used when the call is a normal function call. |
| 3629 | BUILTIN(HandleApiCallAsFunction) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3630 | return HandleApiCallAsFunctionOrConstructor(isolate, false, args); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3631 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3632 | |
| 3633 | |
| 3634 | // Handle calls to non-function objects created through the API. This delegate |
| 3635 | // function is used when the call is a construct call. |
| 3636 | BUILTIN(HandleApiCallAsConstructor) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3637 | return HandleApiCallAsFunctionOrConstructor(isolate, true, args); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3638 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3639 | |
| 3640 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3641 | static void Generate_LoadIC_Miss(MacroAssembler* masm) { |
| 3642 | LoadIC::GenerateMiss(masm); |
| 3643 | } |
| 3644 | |
| 3645 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3646 | static void Generate_LoadIC_Normal(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3647 | LoadIC::GenerateNormal(masm, SLOPPY); |
| 3648 | } |
| 3649 | |
| 3650 | |
| 3651 | static void Generate_LoadIC_Normal_Strong(MacroAssembler* masm) { |
| 3652 | LoadIC::GenerateNormal(masm, STRONG); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3653 | } |
| 3654 | |
| 3655 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3656 | static void Generate_LoadIC_Getter_ForDeopt(MacroAssembler* masm) { |
| 3657 | NamedLoadHandlerCompiler::GenerateLoadViaGetterForDeopt(masm); |
| 3658 | } |
| 3659 | |
| 3660 | |
| 3661 | static void Generate_LoadIC_Slow(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3662 | LoadIC::GenerateRuntimeGetProperty(masm, SLOPPY); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3663 | } |
| 3664 | |
| 3665 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3666 | static void Generate_LoadIC_Slow_Strong(MacroAssembler* masm) { |
| 3667 | LoadIC::GenerateRuntimeGetProperty(masm, STRONG); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3668 | } |
| 3669 | |
| 3670 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3671 | static void Generate_KeyedLoadIC_Slow(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3672 | KeyedLoadIC::GenerateRuntimeGetProperty(masm, SLOPPY); |
| 3673 | } |
| 3674 | |
| 3675 | |
| 3676 | static void Generate_KeyedLoadIC_Slow_Strong(MacroAssembler* masm) { |
| 3677 | KeyedLoadIC::GenerateRuntimeGetProperty(masm, STRONG); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3678 | } |
| 3679 | |
| 3680 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3681 | static void Generate_KeyedLoadIC_Miss(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3682 | KeyedLoadIC::GenerateMiss(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3683 | } |
| 3684 | |
| 3685 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3686 | static void Generate_KeyedLoadIC_Megamorphic(MacroAssembler* masm) { |
| 3687 | KeyedLoadIC::GenerateMegamorphic(masm, SLOPPY); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3688 | } |
| 3689 | |
| 3690 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3691 | static void Generate_KeyedLoadIC_Megamorphic_Strong(MacroAssembler* masm) { |
| 3692 | KeyedLoadIC::GenerateMegamorphic(masm, STRONG); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3693 | } |
| 3694 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3695 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3696 | static void Generate_StoreIC_Miss(MacroAssembler* masm) { |
| 3697 | StoreIC::GenerateMiss(masm); |
| 3698 | } |
| 3699 | |
| 3700 | |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 3701 | static void Generate_StoreIC_Normal(MacroAssembler* masm) { |
| 3702 | StoreIC::GenerateNormal(masm); |
| 3703 | } |
| 3704 | |
| 3705 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3706 | static void Generate_StoreIC_Slow(MacroAssembler* masm) { |
| 3707 | NamedStoreHandlerCompiler::GenerateSlow(masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3708 | } |
| 3709 | |
| 3710 | |
| 3711 | static void Generate_KeyedStoreIC_Slow(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3712 | ElementHandlerCompiler::GenerateStoreSlow(masm); |
| 3713 | } |
| 3714 | |
| 3715 | |
| 3716 | static void Generate_StoreIC_Setter_ForDeopt(MacroAssembler* masm) { |
| 3717 | NamedStoreHandlerCompiler::GenerateStoreViaSetterForDeopt(masm); |
| 3718 | } |
| 3719 | |
| 3720 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3721 | static void Generate_KeyedStoreIC_Megamorphic(MacroAssembler* masm) { |
| 3722 | KeyedStoreIC::GenerateMegamorphic(masm, SLOPPY); |
| 3723 | } |
| 3724 | |
| 3725 | |
| 3726 | static void Generate_KeyedStoreIC_Megamorphic_Strict(MacroAssembler* masm) { |
| 3727 | KeyedStoreIC::GenerateMegamorphic(masm, STRICT); |
| 3728 | } |
| 3729 | |
| 3730 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3731 | static void Generate_KeyedStoreIC_Miss(MacroAssembler* masm) { |
| 3732 | KeyedStoreIC::GenerateMiss(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3733 | } |
| 3734 | |
| 3735 | |
| 3736 | static void Generate_KeyedStoreIC_Initialize(MacroAssembler* masm) { |
| 3737 | KeyedStoreIC::GenerateInitialize(masm); |
| 3738 | } |
| 3739 | |
| 3740 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3741 | static void Generate_KeyedStoreIC_Initialize_Strict(MacroAssembler* masm) { |
| 3742 | KeyedStoreIC::GenerateInitialize(masm); |
| 3743 | } |
| 3744 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3745 | |
| 3746 | static void Generate_KeyedStoreIC_PreMonomorphic(MacroAssembler* masm) { |
| 3747 | KeyedStoreIC::GeneratePreMonomorphic(masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3748 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3749 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3750 | |
| 3751 | static void Generate_KeyedStoreIC_PreMonomorphic_Strict(MacroAssembler* masm) { |
| 3752 | KeyedStoreIC::GeneratePreMonomorphic(masm); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3753 | } |
| 3754 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3755 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3756 | static void Generate_Return_DebugBreak(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3757 | DebugCodegen::GenerateDebugBreakStub(masm, |
| 3758 | DebugCodegen::SAVE_RESULT_REGISTER); |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 3759 | } |
| 3760 | |
| 3761 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 3762 | static void Generate_Slot_DebugBreak(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3763 | DebugCodegen::GenerateDebugBreakStub(masm, |
| 3764 | DebugCodegen::IGNORE_RESULT_REGISTER); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3765 | } |
| 3766 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 3767 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3768 | static void Generate_FrameDropper_LiveEdit(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3769 | DebugCodegen::GenerateFrameDropperLiveEdit(masm); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3770 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3771 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3772 | |
| 3773 | Builtins::Builtins() : initialized_(false) { |
| 3774 | memset(builtins_, 0, sizeof(builtins_[0]) * builtin_count); |
| 3775 | memset(names_, 0, sizeof(names_[0]) * builtin_count); |
| 3776 | } |
| 3777 | |
| 3778 | |
| 3779 | Builtins::~Builtins() { |
| 3780 | } |
| 3781 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3782 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3783 | #define DEF_ENUM_C(name, ignore) FUNCTION_ADDR(Builtin_##name), |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3784 | Address const Builtins::c_functions_[cfunction_count] = { |
| 3785 | BUILTIN_LIST_C(DEF_ENUM_C) |
| 3786 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3787 | #undef DEF_ENUM_C |
| 3788 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3789 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3790 | struct BuiltinDesc { |
| 3791 | byte* generator; |
| 3792 | byte* c_code; |
| 3793 | const char* s_name; // name is only used for generating log information. |
| 3794 | int name; |
| 3795 | Code::Flags flags; |
| 3796 | BuiltinExtraArguments extra_args; |
| 3797 | }; |
| 3798 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3799 | #define BUILTIN_FUNCTION_TABLE_INIT { V8_ONCE_INIT, {} } |
| 3800 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3801 | class BuiltinFunctionTable { |
| 3802 | public: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3803 | BuiltinDesc* functions() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3804 | base::CallOnce(&once_, &Builtins::InitBuiltinFunctionTable); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3805 | return functions_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3806 | } |
| 3807 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3808 | base::OnceType once_; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3809 | BuiltinDesc functions_[Builtins::builtin_count + 1]; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3810 | |
| 3811 | friend class Builtins; |
| 3812 | }; |
| 3813 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3814 | static BuiltinFunctionTable builtin_function_table = |
| 3815 | BUILTIN_FUNCTION_TABLE_INIT; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3816 | |
| 3817 | // Define array of pointers to generators and C builtin functions. |
| 3818 | // We do this in a sort of roundabout way so that we can do the initialization |
| 3819 | // within the lexical scope of Builtins:: and within a context where |
| 3820 | // Code::Flags names a non-abstract type. |
| 3821 | void Builtins::InitBuiltinFunctionTable() { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3822 | BuiltinDesc* functions = builtin_function_table.functions_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3823 | functions[builtin_count].generator = NULL; |
| 3824 | functions[builtin_count].c_code = NULL; |
| 3825 | functions[builtin_count].s_name = NULL; |
| 3826 | functions[builtin_count].name = builtin_count; |
| 3827 | functions[builtin_count].flags = static_cast<Code::Flags>(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3828 | functions[builtin_count].extra_args = BuiltinExtraArguments::kNone; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3829 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3830 | #define DEF_FUNCTION_PTR_C(aname, aextra_args) \ |
| 3831 | functions->generator = FUNCTION_ADDR(Generate_Adaptor); \ |
| 3832 | functions->c_code = FUNCTION_ADDR(Builtin_##aname); \ |
| 3833 | functions->s_name = #aname; \ |
| 3834 | functions->name = c_##aname; \ |
| 3835 | functions->flags = Code::ComputeFlags(Code::BUILTIN); \ |
| 3836 | functions->extra_args = BuiltinExtraArguments::aextra_args; \ |
| 3837 | ++functions; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3838 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3839 | #define DEF_FUNCTION_PTR_A(aname, kind, state, extra) \ |
| 3840 | functions->generator = FUNCTION_ADDR(Generate_##aname); \ |
| 3841 | functions->c_code = NULL; \ |
| 3842 | functions->s_name = #aname; \ |
| 3843 | functions->name = k##aname; \ |
| 3844 | functions->flags = Code::ComputeFlags(Code::kind, state, extra); \ |
| 3845 | functions->extra_args = BuiltinExtraArguments::kNone; \ |
| 3846 | ++functions; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3847 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3848 | #define DEF_FUNCTION_PTR_H(aname, kind) \ |
| 3849 | functions->generator = FUNCTION_ADDR(Generate_##aname); \ |
| 3850 | functions->c_code = NULL; \ |
| 3851 | functions->s_name = #aname; \ |
| 3852 | functions->name = k##aname; \ |
| 3853 | functions->flags = Code::ComputeHandlerFlags(Code::kind); \ |
| 3854 | functions->extra_args = BuiltinExtraArguments::kNone; \ |
| 3855 | ++functions; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3856 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3857 | BUILTIN_LIST_C(DEF_FUNCTION_PTR_C) |
| 3858 | BUILTIN_LIST_A(DEF_FUNCTION_PTR_A) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3859 | BUILTIN_LIST_H(DEF_FUNCTION_PTR_H) |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3860 | BUILTIN_LIST_DEBUG_A(DEF_FUNCTION_PTR_A) |
| 3861 | |
| 3862 | #undef DEF_FUNCTION_PTR_C |
| 3863 | #undef DEF_FUNCTION_PTR_A |
| 3864 | } |
| 3865 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3866 | |
| 3867 | void Builtins::SetUp(Isolate* isolate, bool create_heap_objects) { |
| 3868 | DCHECK(!initialized_); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3869 | |
| 3870 | // Create a scope for the handles in the builtins. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 3871 | HandleScope scope(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3872 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3873 | const BuiltinDesc* functions = builtin_function_table.functions(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3874 | |
| 3875 | // For now we generate builtin adaptor code into a stack-allocated |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3876 | // buffer, before copying it into individual code objects. Be careful |
| 3877 | // with alignment, some platforms don't like unaligned code. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3878 | #ifdef DEBUG |
| 3879 | // We can generate a lot of debug code on Arm64. |
| 3880 | const size_t buffer_size = 32*KB; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3881 | #elif V8_TARGET_ARCH_PPC64 |
| 3882 | // 8 KB is insufficient on PPC64 when FLAG_debug_code is on. |
| 3883 | const size_t buffer_size = 10 * KB; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3884 | #else |
| 3885 | const size_t buffer_size = 8*KB; |
| 3886 | #endif |
| 3887 | union { int force_alignment; byte buffer[buffer_size]; } u; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3888 | |
| 3889 | // Traverse the list of builtins and generate an adaptor in a |
| 3890 | // separate code object for each one. |
| 3891 | for (int i = 0; i < builtin_count; i++) { |
| 3892 | if (create_heap_objects) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3893 | MacroAssembler masm(isolate, u.buffer, sizeof u.buffer, |
| 3894 | CodeObjectRequired::kYes); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3895 | // Generate the code/adaptor. |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3896 | typedef void (*Generator)(MacroAssembler*, int, BuiltinExtraArguments); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3897 | Generator g = FUNCTION_CAST<Generator>(functions[i].generator); |
| 3898 | // We pass all arguments to the generator, but it may not use all of |
| 3899 | // them. This works because the first arguments are on top of the |
| 3900 | // stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3901 | DCHECK(!masm.has_frame()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3902 | g(&masm, functions[i].name, functions[i].extra_args); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3903 | // Move the code into the object heap. |
| 3904 | CodeDesc desc; |
| 3905 | masm.GetCode(&desc); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3906 | Code::Flags flags = functions[i].flags; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3907 | Handle<Code> code = |
| 3908 | isolate->factory()->NewCode(desc, flags, masm.CodeObject()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3909 | // Log the event and add the code to the builtins array. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 3910 | PROFILE(isolate, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3911 | CodeCreateEvent(Logger::BUILTIN_TAG, *code, functions[i].s_name)); |
| 3912 | builtins_[i] = *code; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3913 | code->set_builtin_index(i); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3914 | #ifdef ENABLE_DISASSEMBLER |
| 3915 | if (FLAG_print_builtin_code) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3916 | CodeTracer::Scope trace_scope(isolate->GetCodeTracer()); |
| 3917 | OFStream os(trace_scope.file()); |
| 3918 | os << "Builtin: " << functions[i].s_name << "\n"; |
| 3919 | code->Disassemble(functions[i].s_name, os); |
| 3920 | os << "\n"; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3921 | } |
| 3922 | #endif |
| 3923 | } else { |
| 3924 | // Deserializing. The values will be filled in during IterateBuiltins. |
| 3925 | builtins_[i] = NULL; |
| 3926 | } |
| 3927 | names_[i] = functions[i].s_name; |
| 3928 | } |
| 3929 | |
| 3930 | // Mark as initialized. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3931 | initialized_ = true; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3932 | } |
| 3933 | |
| 3934 | |
| 3935 | void Builtins::TearDown() { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3936 | initialized_ = false; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3937 | } |
| 3938 | |
| 3939 | |
| 3940 | void Builtins::IterateBuiltins(ObjectVisitor* v) { |
| 3941 | v->VisitPointers(&builtins_[0], &builtins_[0] + builtin_count); |
| 3942 | } |
| 3943 | |
| 3944 | |
| 3945 | const char* Builtins::Lookup(byte* pc) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3946 | // may be called during initialization (disassembler!) |
| 3947 | if (initialized_) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3948 | for (int i = 0; i < builtin_count; i++) { |
| 3949 | Code* entry = Code::cast(builtins_[i]); |
| 3950 | if (entry->contains(pc)) { |
| 3951 | return names_[i]; |
| 3952 | } |
| 3953 | } |
| 3954 | } |
| 3955 | return NULL; |
| 3956 | } |
| 3957 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 3958 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3959 | void Builtins::Generate_InterruptCheck(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3960 | masm->TailCallRuntime(Runtime::kInterrupt); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3961 | } |
| 3962 | |
| 3963 | |
| 3964 | void Builtins::Generate_StackCheck(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3965 | masm->TailCallRuntime(Runtime::kStackGuard); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3966 | } |
| 3967 | |
| 3968 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3969 | #define DEFINE_BUILTIN_ACCESSOR_C(name, ignore) \ |
| 3970 | Handle<Code> Builtins::name() { \ |
| 3971 | Code** code_address = \ |
| 3972 | reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 3973 | return Handle<Code>(code_address); \ |
| 3974 | } |
| 3975 | #define DEFINE_BUILTIN_ACCESSOR_A(name, kind, state, extra) \ |
| 3976 | Handle<Code> Builtins::name() { \ |
| 3977 | Code** code_address = \ |
| 3978 | reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 3979 | return Handle<Code>(code_address); \ |
| 3980 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3981 | #define DEFINE_BUILTIN_ACCESSOR_H(name, kind) \ |
| 3982 | Handle<Code> Builtins::name() { \ |
| 3983 | Code** code_address = \ |
| 3984 | reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 3985 | return Handle<Code>(code_address); \ |
| 3986 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3987 | BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C) |
| 3988 | BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3989 | BUILTIN_LIST_H(DEFINE_BUILTIN_ACCESSOR_H) |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3990 | BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A) |
| 3991 | #undef DEFINE_BUILTIN_ACCESSOR_C |
| 3992 | #undef DEFINE_BUILTIN_ACCESSOR_A |
| 3993 | |
| 3994 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3995 | } // namespace internal |
| 3996 | } // namespace v8 |