Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/runtime/runtime-utils.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6 | |
| 7 | #include "src/arguments.h" |
| 8 | #include "src/bootstrapper.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 9 | #include "src/debug/debug.h" |
| 10 | #include "src/isolate-inl.h" |
| 11 | #include "src/messages.h" |
| 12 | #include "src/property-descriptor.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 13 | #include "src/runtime/runtime.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 14 | |
| 15 | namespace v8 { |
| 16 | namespace internal { |
| 17 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 18 | MaybeHandle<Object> Runtime::GetObjectProperty(Isolate* isolate, |
| 19 | Handle<Object> object, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 20 | Handle<Object> key, |
| 21 | bool* is_found_out) { |
| 22 | if (object->IsUndefined(isolate) || object->IsNull(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 23 | THROW_NEW_ERROR( |
| 24 | isolate, |
| 25 | NewTypeError(MessageTemplate::kNonObjectPropertyLoad, key, object), |
| 26 | Object); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 27 | } |
| 28 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 29 | bool success = false; |
| 30 | LookupIterator it = |
| 31 | LookupIterator::PropertyOrElement(isolate, object, key, &success); |
| 32 | if (!success) return MaybeHandle<Object>(); |
| 33 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 34 | MaybeHandle<Object> result = Object::GetProperty(&it); |
| 35 | if (is_found_out) *is_found_out = it.IsFound(); |
| 36 | return result; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 37 | } |
| 38 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 39 | static MaybeHandle<Object> KeyedGetObjectProperty(Isolate* isolate, |
| 40 | Handle<Object> receiver_obj, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 41 | Handle<Object> key_obj) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 42 | // Fast cases for getting named properties of the receiver JSObject |
| 43 | // itself. |
| 44 | // |
| 45 | // The global proxy objects has to be excluded since LookupOwn on |
| 46 | // the global proxy object can return a valid result even though the |
| 47 | // global proxy object never has properties. This is the case |
| 48 | // because the global proxy object forwards everything to its hidden |
| 49 | // prototype including own lookups. |
| 50 | // |
| 51 | // Additionally, we need to make sure that we do not cache results |
| 52 | // for objects that require access checks. |
| 53 | if (receiver_obj->IsJSObject()) { |
| 54 | if (!receiver_obj->IsJSGlobalProxy() && |
| 55 | !receiver_obj->IsAccessCheckNeeded() && key_obj->IsName()) { |
| 56 | DisallowHeapAllocation no_allocation; |
| 57 | Handle<JSObject> receiver = Handle<JSObject>::cast(receiver_obj); |
| 58 | Handle<Name> key = Handle<Name>::cast(key_obj); |
| 59 | if (receiver->IsJSGlobalObject()) { |
| 60 | // Attempt dictionary lookup. |
| 61 | GlobalDictionary* dictionary = receiver->global_dictionary(); |
| 62 | int entry = dictionary->FindEntry(key); |
| 63 | if (entry != GlobalDictionary::kNotFound) { |
| 64 | DCHECK(dictionary->ValueAt(entry)->IsPropertyCell()); |
| 65 | PropertyCell* cell = PropertyCell::cast(dictionary->ValueAt(entry)); |
| 66 | if (cell->property_details().type() == DATA) { |
| 67 | Object* value = cell->value(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 68 | if (!value->IsTheHole(isolate)) { |
| 69 | return Handle<Object>(value, isolate); |
| 70 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 71 | // If value is the hole (meaning, absent) do the general lookup. |
| 72 | } |
| 73 | } |
| 74 | } else if (!receiver->HasFastProperties()) { |
| 75 | // Attempt dictionary lookup. |
| 76 | NameDictionary* dictionary = receiver->property_dictionary(); |
| 77 | int entry = dictionary->FindEntry(key); |
| 78 | if ((entry != NameDictionary::kNotFound) && |
| 79 | (dictionary->DetailsAt(entry).type() == DATA)) { |
| 80 | Object* value = dictionary->ValueAt(entry); |
| 81 | return Handle<Object>(value, isolate); |
| 82 | } |
| 83 | } |
| 84 | } else if (key_obj->IsSmi()) { |
| 85 | // JSObject without a name key. If the key is a Smi, check for a |
| 86 | // definite out-of-bounds access to elements, which is a strong indicator |
| 87 | // that subsequent accesses will also call the runtime. Proactively |
| 88 | // transition elements to FAST_*_ELEMENTS to avoid excessive boxing of |
| 89 | // doubles for those future calls in the case that the elements would |
| 90 | // become FAST_DOUBLE_ELEMENTS. |
| 91 | Handle<JSObject> js_object = Handle<JSObject>::cast(receiver_obj); |
| 92 | ElementsKind elements_kind = js_object->GetElementsKind(); |
| 93 | if (IsFastDoubleElementsKind(elements_kind)) { |
| 94 | if (Smi::cast(*key_obj)->value() >= js_object->elements()->length()) { |
| 95 | elements_kind = IsFastHoleyElementsKind(elements_kind) |
| 96 | ? FAST_HOLEY_ELEMENTS |
| 97 | : FAST_ELEMENTS; |
| 98 | JSObject::TransitionElementsKind(js_object, elements_kind); |
| 99 | } |
| 100 | } else { |
| 101 | DCHECK(IsFastSmiOrObjectElementsKind(elements_kind) || |
| 102 | !IsFastElementsKind(elements_kind)); |
| 103 | } |
| 104 | } |
| 105 | } else if (receiver_obj->IsString() && key_obj->IsSmi()) { |
| 106 | // Fast case for string indexing using [] with a smi index. |
| 107 | Handle<String> str = Handle<String>::cast(receiver_obj); |
| 108 | int index = Handle<Smi>::cast(key_obj)->value(); |
| 109 | if (index >= 0 && index < str->length()) { |
| 110 | Factory* factory = isolate->factory(); |
| 111 | return factory->LookupSingleCharacterStringFromCode( |
| 112 | String::Flatten(str)->Get(index)); |
| 113 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 114 | } |
| 115 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 116 | // Fall back to GetObjectProperty. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 117 | return Runtime::GetObjectProperty(isolate, receiver_obj, key_obj); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 118 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 119 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | |
| 121 | Maybe<bool> Runtime::DeleteObjectProperty(Isolate* isolate, |
| 122 | Handle<JSReceiver> receiver, |
| 123 | Handle<Object> key, |
| 124 | LanguageMode language_mode) { |
| 125 | bool success = false; |
| 126 | LookupIterator it = LookupIterator::PropertyOrElement( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 127 | isolate, receiver, key, &success, LookupIterator::OWN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 128 | if (!success) return Nothing<bool>(); |
| 129 | |
| 130 | return JSReceiver::DeleteProperty(&it, language_mode); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 131 | } |
| 132 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 133 | // ES6 19.1.3.2 |
| 134 | RUNTIME_FUNCTION(Runtime_ObjectHasOwnProperty) { |
| 135 | HandleScope scope(isolate); |
| 136 | Handle<Object> property = args.at<Object>(1); |
| 137 | |
| 138 | Handle<Name> key; |
| 139 | uint32_t index; |
| 140 | bool key_is_array_index = property->ToArrayIndex(&index); |
| 141 | |
| 142 | if (!key_is_array_index) { |
| 143 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, key, |
| 144 | Object::ToName(isolate, property)); |
| 145 | key_is_array_index = key->AsArrayIndex(&index); |
| 146 | } |
| 147 | |
| 148 | Handle<Object> object = args.at<Object>(0); |
| 149 | |
| 150 | if (object->IsJSObject()) { |
| 151 | Handle<JSObject> js_obj = Handle<JSObject>::cast(object); |
| 152 | // Fast case: either the key is a real named property or it is not |
| 153 | // an array index and there are no interceptors or hidden |
| 154 | // prototypes. |
| 155 | // TODO(jkummerow): Make JSReceiver::HasOwnProperty fast enough to |
| 156 | // handle all cases directly (without this custom fast path). |
| 157 | { |
| 158 | LookupIterator::Configuration c = LookupIterator::OWN_SKIP_INTERCEPTOR; |
| 159 | LookupIterator it = |
| 160 | key_is_array_index ? LookupIterator(isolate, js_obj, index, js_obj, c) |
| 161 | : LookupIterator(js_obj, key, js_obj, c); |
| 162 | Maybe<bool> maybe = JSReceiver::HasProperty(&it); |
| 163 | if (maybe.IsNothing()) return isolate->heap()->exception(); |
| 164 | DCHECK(!isolate->has_pending_exception()); |
| 165 | if (maybe.FromJust()) return isolate->heap()->true_value(); |
| 166 | } |
| 167 | |
| 168 | Map* map = js_obj->map(); |
| 169 | if (!map->has_hidden_prototype() && |
| 170 | (key_is_array_index ? !map->has_indexed_interceptor() |
| 171 | : !map->has_named_interceptor())) { |
| 172 | return isolate->heap()->false_value(); |
| 173 | } |
| 174 | |
| 175 | // Slow case. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 176 | LookupIterator::Configuration c = LookupIterator::OWN; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 177 | LookupIterator it = key_is_array_index |
| 178 | ? LookupIterator(isolate, js_obj, index, js_obj, c) |
| 179 | : LookupIterator(js_obj, key, js_obj, c); |
| 180 | |
| 181 | Maybe<bool> maybe = JSReceiver::HasProperty(&it); |
| 182 | if (maybe.IsNothing()) return isolate->heap()->exception(); |
| 183 | DCHECK(!isolate->has_pending_exception()); |
| 184 | return isolate->heap()->ToBoolean(maybe.FromJust()); |
| 185 | |
| 186 | } else if (object->IsJSProxy()) { |
| 187 | if (key.is_null()) { |
| 188 | DCHECK(key_is_array_index); |
| 189 | key = isolate->factory()->Uint32ToString(index); |
| 190 | } |
| 191 | |
| 192 | Maybe<bool> result = |
| 193 | JSReceiver::HasOwnProperty(Handle<JSProxy>::cast(object), key); |
| 194 | if (!result.IsJust()) return isolate->heap()->exception(); |
| 195 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 196 | |
| 197 | } else if (object->IsString()) { |
| 198 | return isolate->heap()->ToBoolean( |
| 199 | key_is_array_index |
| 200 | ? index < static_cast<uint32_t>(String::cast(*object)->length()) |
| 201 | : key->Equals(isolate->heap()->length_string())); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 202 | } else if (object->IsNull(isolate) || object->IsUndefined(isolate)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 203 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 204 | isolate, NewTypeError(MessageTemplate::kUndefinedOrNullToObject)); |
| 205 | } |
| 206 | |
| 207 | return isolate->heap()->false_value(); |
| 208 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 209 | |
| 210 | MaybeHandle<Object> Runtime::SetObjectProperty(Isolate* isolate, |
| 211 | Handle<Object> object, |
| 212 | Handle<Object> key, |
| 213 | Handle<Object> value, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 214 | LanguageMode language_mode) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 215 | if (object->IsUndefined(isolate) || object->IsNull(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 216 | THROW_NEW_ERROR( |
| 217 | isolate, |
| 218 | NewTypeError(MessageTemplate::kNonObjectPropertyStore, key, object), |
| 219 | Object); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 220 | } |
| 221 | |
| 222 | // Check if the given key is an array index. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 223 | bool success = false; |
| 224 | LookupIterator it = |
| 225 | LookupIterator::PropertyOrElement(isolate, object, key, &success); |
| 226 | if (!success) return MaybeHandle<Object>(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 227 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 228 | MAYBE_RETURN_NULL(Object::SetProperty(&it, value, language_mode, |
| 229 | Object::MAY_BE_STORE_FROM_KEYED)); |
| 230 | return value; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | |
| 234 | RUNTIME_FUNCTION(Runtime_GetPrototype) { |
| 235 | HandleScope scope(isolate); |
| 236 | DCHECK(args.length() == 1); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 237 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, obj, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 238 | RETURN_RESULT_OR_FAILURE(isolate, JSReceiver::GetPrototype(isolate, obj)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | |
| 242 | RUNTIME_FUNCTION(Runtime_InternalSetPrototype) { |
| 243 | HandleScope scope(isolate); |
| 244 | DCHECK(args.length() == 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 245 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, obj, 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 246 | CONVERT_ARG_HANDLE_CHECKED(Object, prototype, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 247 | MAYBE_RETURN( |
| 248 | JSReceiver::SetPrototype(obj, prototype, false, Object::THROW_ON_ERROR), |
| 249 | isolate->heap()->exception()); |
| 250 | return *obj; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | |
| 254 | RUNTIME_FUNCTION(Runtime_SetPrototype) { |
| 255 | HandleScope scope(isolate); |
| 256 | DCHECK(args.length() == 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 257 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, obj, 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 258 | CONVERT_ARG_HANDLE_CHECKED(Object, prototype, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 259 | MAYBE_RETURN( |
| 260 | JSReceiver::SetPrototype(obj, prototype, true, Object::THROW_ON_ERROR), |
| 261 | isolate->heap()->exception()); |
| 262 | return *obj; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 263 | } |
| 264 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 265 | RUNTIME_FUNCTION(Runtime_OptimizeObjectForAddingMultipleProperties) { |
| 266 | HandleScope scope(isolate); |
| 267 | DCHECK(args.length() == 2); |
| 268 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 269 | CONVERT_SMI_ARG_CHECKED(properties, 1); |
| 270 | // Conservative upper limit to prevent fuzz tests from going OOM. |
| 271 | RUNTIME_ASSERT(properties <= 100000); |
| 272 | if (object->HasFastProperties() && !object->IsJSGlobalProxy()) { |
| 273 | JSObject::NormalizeProperties(object, KEEP_INOBJECT_PROPERTIES, properties, |
| 274 | "OptimizeForAdding"); |
| 275 | } |
| 276 | return *object; |
| 277 | } |
| 278 | |
| 279 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 280 | namespace { |
| 281 | |
| 282 | Object* StoreGlobalViaContext(Isolate* isolate, int slot, Handle<Object> value, |
| 283 | LanguageMode language_mode) { |
| 284 | // Go up context chain to the script context. |
| 285 | Handle<Context> script_context(isolate->context()->script_context(), isolate); |
| 286 | DCHECK(script_context->IsScriptContext()); |
| 287 | DCHECK(script_context->get(slot)->IsPropertyCell()); |
| 288 | |
| 289 | // Lookup the named property on the global object. |
| 290 | Handle<ScopeInfo> scope_info(script_context->scope_info(), isolate); |
| 291 | Handle<Name> name(scope_info->ContextSlotName(slot), isolate); |
| 292 | Handle<JSGlobalObject> global_object(script_context->global_object(), |
| 293 | isolate); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 294 | LookupIterator it(global_object, name, global_object, LookupIterator::OWN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 295 | |
| 296 | // Switch to fast mode only if there is a data property and it's not on |
| 297 | // a hidden prototype. |
| 298 | if (it.state() == LookupIterator::DATA && |
| 299 | it.GetHolder<Object>().is_identical_to(global_object)) { |
| 300 | // Now update cell in the script context. |
| 301 | Handle<PropertyCell> cell = it.GetPropertyCell(); |
| 302 | script_context->set(slot, *cell); |
| 303 | } else { |
| 304 | // This is not a fast case, so keep this access in a slow mode. |
| 305 | // Store empty_property_cell here to release the outdated property cell. |
| 306 | script_context->set(slot, isolate->heap()->empty_property_cell()); |
| 307 | } |
| 308 | |
| 309 | MAYBE_RETURN(Object::SetProperty(&it, value, language_mode, |
| 310 | Object::CERTAINLY_NOT_STORE_FROM_KEYED), |
| 311 | isolate->heap()->exception()); |
| 312 | return *value; |
| 313 | } |
| 314 | |
| 315 | } // namespace |
| 316 | |
| 317 | |
| 318 | RUNTIME_FUNCTION(Runtime_StoreGlobalViaContext_Sloppy) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 319 | HandleScope scope(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 320 | DCHECK_EQ(2, args.length()); |
| 321 | CONVERT_SMI_ARG_CHECKED(slot, 0); |
| 322 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 323 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 324 | return StoreGlobalViaContext(isolate, slot, value, SLOPPY); |
| 325 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 326 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 327 | |
| 328 | RUNTIME_FUNCTION(Runtime_StoreGlobalViaContext_Strict) { |
| 329 | HandleScope scope(isolate); |
| 330 | DCHECK_EQ(2, args.length()); |
| 331 | CONVERT_SMI_ARG_CHECKED(slot, 0); |
| 332 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); |
| 333 | |
| 334 | return StoreGlobalViaContext(isolate, slot, value, STRICT); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | |
| 338 | RUNTIME_FUNCTION(Runtime_GetProperty) { |
| 339 | HandleScope scope(isolate); |
| 340 | DCHECK(args.length() == 2); |
| 341 | |
| 342 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 343 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 344 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 345 | RETURN_RESULT_OR_FAILURE(isolate, |
| 346 | Runtime::GetObjectProperty(isolate, object, key)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 347 | } |
| 348 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 349 | // KeyedGetProperty is called from KeyedLoadIC::GenerateGeneric. |
| 350 | RUNTIME_FUNCTION(Runtime_KeyedGetProperty) { |
| 351 | HandleScope scope(isolate); |
| 352 | DCHECK(args.length() == 2); |
| 353 | |
| 354 | CONVERT_ARG_HANDLE_CHECKED(Object, receiver_obj, 0); |
| 355 | CONVERT_ARG_HANDLE_CHECKED(Object, key_obj, 1); |
| 356 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 357 | RETURN_RESULT_OR_FAILURE( |
| 358 | isolate, KeyedGetObjectProperty(isolate, receiver_obj, key_obj)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 359 | } |
| 360 | |
| 361 | |
| 362 | RUNTIME_FUNCTION(Runtime_AddNamedProperty) { |
| 363 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 364 | DCHECK_EQ(4, args.length()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 365 | |
| 366 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 367 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 368 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 369 | CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 370 | |
| 371 | #ifdef DEBUG |
| 372 | uint32_t index = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 373 | DCHECK(!name->ToArrayIndex(&index)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 374 | LookupIterator it(object, name, object, LookupIterator::OWN_SKIP_INTERCEPTOR); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 375 | Maybe<PropertyAttributes> maybe = JSReceiver::GetPropertyAttributes(&it); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 376 | if (!maybe.IsJust()) return isolate->heap()->exception(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 377 | CHECK(!it.IsFound()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 378 | #endif |
| 379 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 380 | RETURN_RESULT_OR_FAILURE(isolate, JSObject::SetOwnPropertyIgnoreAttributes( |
| 381 | object, name, value, attrs)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 385 | // Adds an element to an array. |
| 386 | // This is used to create an indexed data property into an array. |
| 387 | RUNTIME_FUNCTION(Runtime_AddElement) { |
| 388 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 389 | DCHECK_EQ(3, args.length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 390 | |
| 391 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 392 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 393 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
| 394 | |
| 395 | uint32_t index = 0; |
| 396 | CHECK(key->ToArrayIndex(&index)); |
| 397 | |
| 398 | #ifdef DEBUG |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 399 | LookupIterator it(isolate, object, index, object, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 400 | LookupIterator::OWN_SKIP_INTERCEPTOR); |
| 401 | Maybe<PropertyAttributes> maybe = JSReceiver::GetPropertyAttributes(&it); |
| 402 | if (!maybe.IsJust()) return isolate->heap()->exception(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 403 | CHECK(!it.IsFound()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 404 | |
| 405 | if (object->IsJSArray()) { |
| 406 | Handle<JSArray> array = Handle<JSArray>::cast(object); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 407 | CHECK(!JSArray::WouldChangeReadOnlyLength(array, index)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 408 | } |
| 409 | #endif |
| 410 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 411 | RETURN_RESULT_OR_FAILURE(isolate, JSObject::SetOwnElementIgnoreAttributes( |
| 412 | object, index, value, NONE)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | |
| 416 | RUNTIME_FUNCTION(Runtime_AppendElement) { |
| 417 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 418 | DCHECK_EQ(2, args.length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 419 | |
| 420 | CONVERT_ARG_HANDLE_CHECKED(JSArray, array, 0); |
| 421 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); |
| 422 | |
| 423 | uint32_t index; |
| 424 | CHECK(array->length()->ToArrayIndex(&index)); |
| 425 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 426 | RETURN_FAILURE_ON_EXCEPTION( |
| 427 | isolate, JSObject::AddDataElement(array, index, value, NONE)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 428 | JSObject::ValidateElements(array); |
| 429 | return *array; |
| 430 | } |
| 431 | |
| 432 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 433 | RUNTIME_FUNCTION(Runtime_SetProperty) { |
| 434 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 435 | DCHECK_EQ(4, args.length()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 436 | |
| 437 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 438 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 439 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 440 | CONVERT_LANGUAGE_MODE_ARG_CHECKED(language_mode_arg, 3); |
| 441 | LanguageMode language_mode = language_mode_arg; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 442 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 443 | RETURN_RESULT_OR_FAILURE( |
| 444 | isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 445 | Runtime::SetObjectProperty(isolate, object, key, value, language_mode)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 449 | namespace { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 450 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 451 | // ES6 section 12.5.4. |
| 452 | Object* DeleteProperty(Isolate* isolate, Handle<Object> object, |
| 453 | Handle<Object> key, LanguageMode language_mode) { |
| 454 | Handle<JSReceiver> receiver; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 455 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 456 | Object::ToObject(isolate, object)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 457 | Maybe<bool> result = |
| 458 | Runtime::DeleteObjectProperty(isolate, receiver, key, language_mode); |
| 459 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 460 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 461 | } |
| 462 | |
| 463 | } // namespace |
| 464 | |
| 465 | |
| 466 | RUNTIME_FUNCTION(Runtime_DeleteProperty_Sloppy) { |
| 467 | HandleScope scope(isolate); |
| 468 | DCHECK_EQ(2, args.length()); |
| 469 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 470 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 471 | return DeleteProperty(isolate, object, key, SLOPPY); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 475 | RUNTIME_FUNCTION(Runtime_DeleteProperty_Strict) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 476 | HandleScope scope(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 477 | DCHECK_EQ(2, args.length()); |
| 478 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 479 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 480 | return DeleteProperty(isolate, object, key, STRICT); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 484 | // ES6 section 12.9.3, operator in. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 485 | RUNTIME_FUNCTION(Runtime_HasProperty) { |
| 486 | HandleScope scope(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 487 | DCHECK_EQ(2, args.length()); |
| 488 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 0); |
| 489 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 490 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 491 | // Check that {object} is actually a receiver. |
| 492 | if (!object->IsJSReceiver()) { |
| 493 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 494 | isolate, |
| 495 | NewTypeError(MessageTemplate::kInvalidInOperatorUse, key, object)); |
| 496 | } |
| 497 | Handle<JSReceiver> receiver = Handle<JSReceiver>::cast(object); |
| 498 | |
| 499 | // Convert the {key} to a name. |
| 500 | Handle<Name> name; |
| 501 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 502 | Object::ToName(isolate, key)); |
| 503 | |
| 504 | // Lookup the {name} on {receiver}. |
| 505 | Maybe<bool> maybe = JSReceiver::HasProperty(receiver, name); |
| 506 | if (!maybe.IsJust()) return isolate->heap()->exception(); |
| 507 | return isolate->heap()->ToBoolean(maybe.FromJust()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 511 | RUNTIME_FUNCTION(Runtime_PropertyIsEnumerable) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 512 | HandleScope scope(isolate); |
| 513 | DCHECK(args.length() == 2); |
| 514 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 515 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 516 | CONVERT_ARG_HANDLE_CHECKED(Name, key, 1); |
| 517 | |
| 518 | Maybe<PropertyAttributes> maybe = |
| 519 | JSReceiver::GetOwnPropertyAttributes(object, key); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 520 | if (!maybe.IsJust()) return isolate->heap()->exception(); |
| 521 | if (maybe.FromJust() == ABSENT) return isolate->heap()->false_value(); |
| 522 | return isolate->heap()->ToBoolean((maybe.FromJust() & DONT_ENUM) == 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 523 | } |
| 524 | |
| 525 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 526 | RUNTIME_FUNCTION(Runtime_GetOwnPropertyKeys) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 527 | HandleScope scope(isolate); |
| 528 | DCHECK(args.length() == 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 529 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 530 | CONVERT_SMI_ARG_CHECKED(filter_value, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 531 | PropertyFilter filter = static_cast<PropertyFilter>(filter_value); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 532 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 533 | Handle<FixedArray> keys; |
| 534 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 535 | isolate, keys, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 536 | KeyAccumulator::GetKeys(object, KeyCollectionMode::kOwnOnly, filter, |
| 537 | GetKeysConversion::kConvertToString)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 538 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 539 | return *isolate->factory()->NewJSArrayWithElements(keys); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | |
| 543 | // Return information on whether an object has a named or indexed interceptor. |
| 544 | // args[0]: object |
| 545 | RUNTIME_FUNCTION(Runtime_GetInterceptorInfo) { |
| 546 | HandleScope scope(isolate); |
| 547 | DCHECK(args.length() == 1); |
| 548 | if (!args[0]->IsJSObject()) { |
| 549 | return Smi::FromInt(0); |
| 550 | } |
| 551 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
| 552 | |
| 553 | int result = 0; |
| 554 | if (obj->HasNamedInterceptor()) result |= 2; |
| 555 | if (obj->HasIndexedInterceptor()) result |= 1; |
| 556 | |
| 557 | return Smi::FromInt(result); |
| 558 | } |
| 559 | |
| 560 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 561 | RUNTIME_FUNCTION(Runtime_ToFastProperties) { |
| 562 | HandleScope scope(isolate); |
| 563 | DCHECK(args.length() == 1); |
| 564 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 565 | if (object->IsJSObject() && !object->IsJSGlobalObject()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 566 | JSObject::MigrateSlowToFast(Handle<JSObject>::cast(object), 0, |
| 567 | "RuntimeToFastProperties"); |
| 568 | } |
| 569 | return *object; |
| 570 | } |
| 571 | |
| 572 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 573 | RUNTIME_FUNCTION(Runtime_AllocateHeapNumber) { |
| 574 | HandleScope scope(isolate); |
| 575 | DCHECK(args.length() == 0); |
| 576 | return *isolate->factory()->NewHeapNumber(0); |
| 577 | } |
| 578 | |
| 579 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 580 | RUNTIME_FUNCTION(Runtime_NewObject) { |
| 581 | HandleScope scope(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 582 | DCHECK_EQ(2, args.length()); |
| 583 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, target, 0); |
| 584 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, new_target, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 585 | RETURN_RESULT_OR_FAILURE(isolate, JSObject::New(target, new_target)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | |
| 589 | RUNTIME_FUNCTION(Runtime_FinalizeInstanceSize) { |
| 590 | HandleScope scope(isolate); |
| 591 | DCHECK(args.length() == 1); |
| 592 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 593 | CONVERT_ARG_HANDLE_CHECKED(Map, initial_map, 0); |
| 594 | initial_map->CompleteInobjectSlackTracking(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 595 | |
| 596 | return isolate->heap()->undefined_value(); |
| 597 | } |
| 598 | |
| 599 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 600 | RUNTIME_FUNCTION(Runtime_LoadMutableDouble) { |
| 601 | HandleScope scope(isolate); |
| 602 | DCHECK(args.length() == 2); |
| 603 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 604 | CONVERT_ARG_HANDLE_CHECKED(Smi, index, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 605 | CHECK((index->value() & 1) == 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 606 | FieldIndex field_index = |
| 607 | FieldIndex::ForLoadByFieldIndex(object->map(), index->value()); |
| 608 | if (field_index.is_inobject()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 609 | CHECK(field_index.property_index() < |
| 610 | object->map()->GetInObjectProperties()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 611 | } else { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 612 | CHECK(field_index.outobject_array_index() < object->properties()->length()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 613 | } |
| 614 | return *JSObject::FastPropertyAt(object, Representation::Double(), |
| 615 | field_index); |
| 616 | } |
| 617 | |
| 618 | |
| 619 | RUNTIME_FUNCTION(Runtime_TryMigrateInstance) { |
| 620 | HandleScope scope(isolate); |
| 621 | DCHECK(args.length() == 1); |
| 622 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 623 | if (!object->IsJSObject()) return Smi::FromInt(0); |
| 624 | Handle<JSObject> js_object = Handle<JSObject>::cast(object); |
| 625 | if (!js_object->map()->is_deprecated()) return Smi::FromInt(0); |
| 626 | // This call must not cause lazy deopts, because it's called from deferred |
| 627 | // code where we can't handle lazy deopts for lack of a suitable bailout |
| 628 | // ID. So we just try migration and signal failure if necessary, |
| 629 | // which will also trigger a deopt. |
| 630 | if (!JSObject::TryMigrateInstance(js_object)) return Smi::FromInt(0); |
| 631 | return *object; |
| 632 | } |
| 633 | |
| 634 | |
| 635 | RUNTIME_FUNCTION(Runtime_IsJSGlobalProxy) { |
| 636 | SealHandleScope shs(isolate); |
| 637 | DCHECK(args.length() == 1); |
| 638 | CONVERT_ARG_CHECKED(Object, obj, 0); |
| 639 | return isolate->heap()->ToBoolean(obj->IsJSGlobalProxy()); |
| 640 | } |
| 641 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 642 | static bool IsValidAccessor(Isolate* isolate, Handle<Object> obj) { |
| 643 | return obj->IsUndefined(isolate) || obj->IsCallable() || obj->IsNull(isolate); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | |
| 647 | // Implements part of 8.12.9 DefineOwnProperty. |
| 648 | // There are 3 cases that lead here: |
| 649 | // Step 4b - define a new accessor property. |
| 650 | // Steps 9c & 12 - replace an existing data property with an accessor property. |
| 651 | // Step 12 - update an existing accessor property with an accessor or generic |
| 652 | // descriptor. |
| 653 | RUNTIME_FUNCTION(Runtime_DefineAccessorPropertyUnchecked) { |
| 654 | HandleScope scope(isolate); |
| 655 | DCHECK(args.length() == 5); |
| 656 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 657 | CHECK(!obj->IsNull(isolate)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 658 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 659 | CONVERT_ARG_HANDLE_CHECKED(Object, getter, 2); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 660 | CHECK(IsValidAccessor(isolate, getter)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 661 | CONVERT_ARG_HANDLE_CHECKED(Object, setter, 3); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 662 | CHECK(IsValidAccessor(isolate, setter)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 663 | CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 4); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 664 | |
| 665 | RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 666 | isolate, JSObject::DefineAccessor(obj, name, getter, setter, attrs)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 667 | return isolate->heap()->undefined_value(); |
| 668 | } |
| 669 | |
| 670 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 671 | RUNTIME_FUNCTION(Runtime_DefineDataPropertyInLiteral) { |
| 672 | HandleScope scope(isolate); |
| 673 | DCHECK(args.length() == 5); |
| 674 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 675 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 676 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
| 677 | CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3); |
| 678 | CONVERT_SMI_ARG_CHECKED(set_function_name, 4); |
| 679 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 680 | if (set_function_name) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 681 | DCHECK(value->IsJSFunction()); |
| 682 | JSFunction::SetName(Handle<JSFunction>::cast(value), name, |
| 683 | isolate->factory()->empty_string()); |
| 684 | } |
| 685 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 686 | LookupIterator it = LookupIterator::PropertyOrElement( |
| 687 | isolate, object, name, object, LookupIterator::OWN); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 688 | // Cannot fail since this should only be called when |
| 689 | // creating an object literal. |
| 690 | CHECK(JSObject::DefineOwnPropertyIgnoreAttributes(&it, value, attrs, |
| 691 | Object::DONT_THROW) |
| 692 | .IsJust()); |
| 693 | return *object; |
| 694 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 695 | |
| 696 | // Return property without being observable by accessors or interceptors. |
| 697 | RUNTIME_FUNCTION(Runtime_GetDataProperty) { |
| 698 | HandleScope scope(isolate); |
| 699 | DCHECK(args.length() == 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 700 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0); |
| 701 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 702 | return *JSReceiver::GetDataProperty(object, name); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 703 | } |
| 704 | |
| 705 | |
| 706 | RUNTIME_FUNCTION(Runtime_HasFastPackedElements) { |
| 707 | SealHandleScope shs(isolate); |
| 708 | DCHECK(args.length() == 1); |
| 709 | CONVERT_ARG_CHECKED(HeapObject, obj, 0); |
| 710 | return isolate->heap()->ToBoolean( |
| 711 | IsFastPackedElementsKind(obj->map()->elements_kind())); |
| 712 | } |
| 713 | |
| 714 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 715 | RUNTIME_FUNCTION(Runtime_ValueOf) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 716 | SealHandleScope shs(isolate); |
| 717 | DCHECK(args.length() == 1); |
| 718 | CONVERT_ARG_CHECKED(Object, obj, 0); |
| 719 | if (!obj->IsJSValue()) return obj; |
| 720 | return JSValue::cast(obj)->value(); |
| 721 | } |
| 722 | |
| 723 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 724 | RUNTIME_FUNCTION(Runtime_IsJSReceiver) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 725 | SealHandleScope shs(isolate); |
| 726 | DCHECK(args.length() == 1); |
| 727 | CONVERT_ARG_CHECKED(Object, obj, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 728 | return isolate->heap()->ToBoolean(obj->IsJSReceiver()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 729 | } |
| 730 | |
| 731 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 732 | RUNTIME_FUNCTION(Runtime_ClassOf) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 733 | SealHandleScope shs(isolate); |
| 734 | DCHECK(args.length() == 1); |
| 735 | CONVERT_ARG_CHECKED(Object, obj, 0); |
| 736 | if (!obj->IsJSReceiver()) return isolate->heap()->null_value(); |
| 737 | return JSReceiver::cast(obj)->class_name(); |
| 738 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 739 | |
| 740 | |
| 741 | RUNTIME_FUNCTION(Runtime_DefineGetterPropertyUnchecked) { |
| 742 | HandleScope scope(isolate); |
| 743 | DCHECK(args.length() == 4); |
| 744 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 745 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 746 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, getter, 2); |
| 747 | CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3); |
| 748 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 749 | if (String::cast(getter->shared()->name())->length() == 0) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 750 | JSFunction::SetName(getter, name, isolate->factory()->get_string()); |
| 751 | } |
| 752 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 753 | RETURN_FAILURE_ON_EXCEPTION( |
| 754 | isolate, |
| 755 | JSObject::DefineAccessor(object, name, getter, |
| 756 | isolate->factory()->null_value(), attrs)); |
| 757 | return isolate->heap()->undefined_value(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 758 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 759 | |
| 760 | |
| 761 | RUNTIME_FUNCTION(Runtime_DefineSetterPropertyUnchecked) { |
| 762 | HandleScope scope(isolate); |
| 763 | DCHECK(args.length() == 4); |
| 764 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 765 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 766 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, setter, 2); |
| 767 | CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3); |
| 768 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 769 | if (String::cast(setter->shared()->name())->length() == 0) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 770 | JSFunction::SetName(setter, name, isolate->factory()->set_string()); |
| 771 | } |
| 772 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 773 | RETURN_FAILURE_ON_EXCEPTION( |
| 774 | isolate, |
| 775 | JSObject::DefineAccessor(object, name, isolate->factory()->null_value(), |
| 776 | setter, attrs)); |
| 777 | return isolate->heap()->undefined_value(); |
| 778 | } |
| 779 | |
| 780 | |
| 781 | RUNTIME_FUNCTION(Runtime_ToObject) { |
| 782 | HandleScope scope(isolate); |
| 783 | DCHECK_EQ(1, args.length()); |
| 784 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 785 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToObject(isolate, object)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 786 | } |
| 787 | |
| 788 | |
| 789 | RUNTIME_FUNCTION(Runtime_ToPrimitive) { |
| 790 | HandleScope scope(isolate); |
| 791 | DCHECK_EQ(1, args.length()); |
| 792 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 793 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToPrimitive(input)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 794 | } |
| 795 | |
| 796 | |
| 797 | RUNTIME_FUNCTION(Runtime_ToPrimitive_Number) { |
| 798 | HandleScope scope(isolate); |
| 799 | DCHECK_EQ(1, args.length()); |
| 800 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 801 | RETURN_RESULT_OR_FAILURE( |
| 802 | isolate, Object::ToPrimitive(input, ToPrimitiveHint::kNumber)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | |
| 806 | RUNTIME_FUNCTION(Runtime_ToPrimitive_String) { |
| 807 | HandleScope scope(isolate); |
| 808 | DCHECK_EQ(1, args.length()); |
| 809 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 810 | RETURN_RESULT_OR_FAILURE( |
| 811 | isolate, Object::ToPrimitive(input, ToPrimitiveHint::kString)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 812 | } |
| 813 | |
| 814 | |
| 815 | RUNTIME_FUNCTION(Runtime_ToNumber) { |
| 816 | HandleScope scope(isolate); |
| 817 | DCHECK_EQ(1, args.length()); |
| 818 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 819 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToNumber(input)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | |
| 823 | RUNTIME_FUNCTION(Runtime_ToInteger) { |
| 824 | HandleScope scope(isolate); |
| 825 | DCHECK_EQ(1, args.length()); |
| 826 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 827 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToInteger(isolate, input)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | |
| 831 | RUNTIME_FUNCTION(Runtime_ToLength) { |
| 832 | HandleScope scope(isolate); |
| 833 | DCHECK_EQ(1, args.length()); |
| 834 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 835 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToLength(isolate, input)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | |
| 839 | RUNTIME_FUNCTION(Runtime_ToString) { |
| 840 | HandleScope scope(isolate); |
| 841 | DCHECK_EQ(1, args.length()); |
| 842 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 843 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToString(isolate, input)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 844 | } |
| 845 | |
| 846 | |
| 847 | RUNTIME_FUNCTION(Runtime_ToName) { |
| 848 | HandleScope scope(isolate); |
| 849 | DCHECK_EQ(1, args.length()); |
| 850 | CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 851 | RETURN_RESULT_OR_FAILURE(isolate, Object::ToName(isolate, input)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 852 | } |
| 853 | |
| 854 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 855 | RUNTIME_FUNCTION(Runtime_SameValue) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 856 | SealHandleScope scope(isolate); |
| 857 | DCHECK_EQ(2, args.length()); |
| 858 | CONVERT_ARG_CHECKED(Object, x, 0); |
| 859 | CONVERT_ARG_CHECKED(Object, y, 1); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 860 | return isolate->heap()->ToBoolean(x->SameValue(y)); |
| 861 | } |
| 862 | |
| 863 | |
| 864 | RUNTIME_FUNCTION(Runtime_SameValueZero) { |
| 865 | SealHandleScope scope(isolate); |
| 866 | DCHECK_EQ(2, args.length()); |
| 867 | CONVERT_ARG_CHECKED(Object, x, 0); |
| 868 | CONVERT_ARG_CHECKED(Object, y, 1); |
| 869 | return isolate->heap()->ToBoolean(x->SameValueZero(y)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 870 | } |
| 871 | |
| 872 | |
| 873 | // TODO(bmeurer): Kill this special wrapper and use TF compatible LessThan, |
| 874 | // GreaterThan, etc. which return true or false. |
| 875 | RUNTIME_FUNCTION(Runtime_Compare) { |
| 876 | HandleScope scope(isolate); |
| 877 | DCHECK_EQ(3, args.length()); |
| 878 | CONVERT_ARG_HANDLE_CHECKED(Object, x, 0); |
| 879 | CONVERT_ARG_HANDLE_CHECKED(Object, y, 1); |
| 880 | CONVERT_ARG_HANDLE_CHECKED(Object, ncr, 2); |
| 881 | Maybe<ComparisonResult> result = Object::Compare(x, y); |
| 882 | if (result.IsJust()) { |
| 883 | switch (result.FromJust()) { |
| 884 | case ComparisonResult::kLessThan: |
| 885 | return Smi::FromInt(LESS); |
| 886 | case ComparisonResult::kEqual: |
| 887 | return Smi::FromInt(EQUAL); |
| 888 | case ComparisonResult::kGreaterThan: |
| 889 | return Smi::FromInt(GREATER); |
| 890 | case ComparisonResult::kUndefined: |
| 891 | return *ncr; |
| 892 | } |
| 893 | UNREACHABLE(); |
| 894 | } |
| 895 | return isolate->heap()->exception(); |
| 896 | } |
| 897 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 898 | RUNTIME_FUNCTION(Runtime_HasInPrototypeChain) { |
| 899 | HandleScope scope(isolate); |
| 900 | DCHECK_EQ(2, args.length()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 901 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 902 | CONVERT_ARG_HANDLE_CHECKED(Object, prototype, 1); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 903 | Maybe<bool> result = |
| 904 | JSReceiver::HasInPrototypeChain(isolate, object, prototype); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 905 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 906 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 907 | } |
| 908 | |
| 909 | |
| 910 | // ES6 section 7.4.7 CreateIterResultObject ( value, done ) |
| 911 | RUNTIME_FUNCTION(Runtime_CreateIterResultObject) { |
| 912 | HandleScope scope(isolate); |
| 913 | DCHECK_EQ(2, args.length()); |
| 914 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 0); |
| 915 | CONVERT_ARG_HANDLE_CHECKED(Object, done, 1); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 916 | Handle<JSObject> result = |
| 917 | isolate->factory()->NewJSObjectFromMap(isolate->iterator_result_map()); |
| 918 | result->InObjectPropertyAtPut(JSIteratorResult::kValueIndex, *value); |
| 919 | result->InObjectPropertyAtPut(JSIteratorResult::kDoneIndex, *done); |
| 920 | return *result; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 921 | } |
| 922 | |
| 923 | |
| 924 | RUNTIME_FUNCTION(Runtime_IsAccessCheckNeeded) { |
| 925 | SealHandleScope shs(isolate); |
| 926 | DCHECK_EQ(1, args.length()); |
| 927 | CONVERT_ARG_CHECKED(Object, object, 0); |
| 928 | return isolate->heap()->ToBoolean(object->IsAccessCheckNeeded()); |
| 929 | } |
| 930 | |
| 931 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 932 | RUNTIME_FUNCTION(Runtime_CreateDataProperty) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 933 | HandleScope scope(isolate); |
| 934 | DCHECK(args.length() == 3); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 935 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, o, 0); |
| 936 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 937 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
| 938 | bool success; |
| 939 | LookupIterator it = LookupIterator::PropertyOrElement( |
| 940 | isolate, o, key, &success, LookupIterator::OWN); |
| 941 | if (!success) return isolate->heap()->exception(); |
| 942 | MAYBE_RETURN( |
| 943 | JSReceiver::CreateDataProperty(&it, value, Object::THROW_ON_ERROR), |
| 944 | isolate->heap()->exception()); |
| 945 | return *value; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 946 | } |
| 947 | |
| 948 | } // namespace internal |
| 949 | } // namespace v8 |