1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2009 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "v8.h" 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "accessors.h" 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "api.h" 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "arguments.h" 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "bootstrapper.h" 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "compiler.h" 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "debug.h" 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "execution.h" 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "global-handles.h" 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "natives.h" 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "runtime.h" 408a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang#include "string-search.h" 41d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block#include "stub-cache.h" 42b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#include "vm-state-inl.h" 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockint HandleScope::NumberOfHandles() { 4944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 5044f0eee88ff00398ff7f715fab053374d808c90dSteve Block HandleScopeImplementer* impl = isolate->handle_scope_implementer(); 5144f0eee88ff00398ff7f715fab053374d808c90dSteve Block int n = impl->blocks()->length(); 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (n == 0) return 0; 53d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block return ((n - 1) * kHandleBlockSize) + static_cast<int>( 5444f0eee88ff00398ff7f715fab053374d808c90dSteve Block (isolate->handle_scope_data()->next - impl->blocks()->last())); 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockObject** HandleScope::Extend() { 5944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 6044f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::ImplementationUtilities::HandleScopeData* current = 6144f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->handle_scope_data(); 6244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 6344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object** result = current->next; 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 6544f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(result == current->limit); 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Make sure there's at least one scope on the stack and that the 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // top of the scope stack isn't a barrier. 6844f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (current->level == 0) { 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Utils::ReportApiFailure("v8::HandleScope::CreateHandle()", 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block "Cannot create a handle without a HandleScope"); 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return NULL; 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 7344f0eee88ff00398ff7f715fab053374d808c90dSteve Block HandleScopeImplementer* impl = isolate->handle_scope_implementer(); 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If there's more room in the last block, we use that. This is used 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // for fast creation of scopes after scope barriers. 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!impl->blocks()->is_empty()) { 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Object** limit = &impl->blocks()->last()[kHandleBlockSize]; 7844f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (current->limit != limit) { 7944f0eee88ff00398ff7f715fab053374d808c90dSteve Block current->limit = limit; 8044f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(limit - current->next < kHandleBlockSize); 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If we still haven't found a slot for the handle, we extend the 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // current handle scope by allocating a new handle block. 8644f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (result == current->limit) { 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If there's a spare block, use it for growing the current scope. 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result = impl->GetSpareOrNewBlock(); 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Add the extension to the global list of blocks, but count the 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // extension as part of the current scope. 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block impl->blocks()->Add(result); 9244f0eee88ff00398ff7f715fab053374d808c90dSteve Block current->limit = &result[kHandleBlockSize]; 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return result; 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 9944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid HandleScope::DeleteExtensions(Isolate* isolate) { 10044f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(isolate == Isolate::Current()); 10144f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::ImplementationUtilities::HandleScopeData* current = 10244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->handle_scope_data(); 10344f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->handle_scope_implementer()->DeleteExtensions(current->limit); 104a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid HandleScope::ZapRange(Object** start, Object** end) { 1085913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck ASSERT(end - start <= kHandleBlockSize); 1095913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck for (Object** p = start; p != end; p++) { 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block *reinterpret_cast<Address*>(p) = v8::internal::kHandleZapValue; 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1155913587db4c6bab03d97bfe44b06289fd6d7270dJohn ReckAddress HandleScope::current_level_address() { 11644f0eee88ff00398ff7f715fab053374d808c90dSteve Block return reinterpret_cast<Address>( 11744f0eee88ff00398ff7f715fab053374d808c90dSteve Block &Isolate::Current()->handle_scope_data()->level); 118d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 119d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 120d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 121d0582a6c46733687d045e4188a1bcd0123c758a1Steve BlockAddress HandleScope::current_next_address() { 12244f0eee88ff00398ff7f715fab053374d808c90dSteve Block return reinterpret_cast<Address>( 12344f0eee88ff00398ff7f715fab053374d808c90dSteve Block &Isolate::Current()->handle_scope_data()->next); 124d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 125d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 126d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 127d0582a6c46733687d045e4188a1bcd0123c758a1Steve BlockAddress HandleScope::current_limit_address() { 12844f0eee88ff00398ff7f715fab053374d808c90dSteve Block return reinterpret_cast<Address>( 12944f0eee88ff00398ff7f715fab053374d808c90dSteve Block &Isolate::Current()->handle_scope_data()->limit); 130d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 131d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 132d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<FixedArray> AddKeysFromJSArray(Handle<FixedArray> content, 134a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSArray> array) { 13544f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(content->GetIsolate(), 13644f0eee88ff00398ff7f715fab053374d808c90dSteve Block content->AddKeysFromJSArray(*array), FixedArray); 137a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 139a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 140a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<FixedArray> UnionOfKeys(Handle<FixedArray> first, 141a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<FixedArray> second) { 14244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(first->GetIsolate(), 14344f0eee88ff00398ff7f715fab053374d808c90dSteve Block first->UnionOfKeys(*second), FixedArray); 144a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 145a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 146a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 147a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<JSGlobalProxy> ReinitializeJSGlobalProxy( 148a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSFunction> constructor, 149a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSGlobalProxy> global) { 15044f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION( 15144f0eee88ff00398ff7f715fab053374d808c90dSteve Block constructor->GetIsolate(), 15244f0eee88ff00398ff7f715fab053374d808c90dSteve Block constructor->GetHeap()->ReinitializeJSGlobalProxy(*constructor, *global), 15344f0eee88ff00398ff7f715fab053374d808c90dSteve Block JSGlobalProxy); 154a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 155a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 157a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid SetExpectedNofProperties(Handle<JSFunction> func, int nof) { 1580d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // If objects constructed from this function exist then changing 1598a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // 'estimated_nof_properties' is dangerous since the previous value might 1600d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // have been compiled into the fast construct stub. More over, the inobject 1610d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // slack tracking logic might have adjusted the previous value, so even 1620d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // passing the same value is risky. 1630d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (func->shared()->live_objects_may_exist()) return; 1640d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 165a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block func->shared()->set_expected_nof_properties(nof); 166a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (func->has_initial_map()) { 167a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Map> new_initial_map = 16844f0eee88ff00398ff7f715fab053374d808c90dSteve Block func->GetIsolate()->factory()->CopyMapDropTransitions( 16944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<Map>(func->initial_map())); 170a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block new_initial_map->set_unused_property_fields(nof); 171a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block func->set_initial_map(*new_initial_map); 172a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 173a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 174a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 175a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 176a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid SetPrototypeProperty(Handle<JSFunction> func, Handle<JSObject> value) { 17744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION_VOID(func->GetIsolate(), 17844f0eee88ff00398ff7f715fab053374d808c90dSteve Block func->SetPrototype(*value)); 179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 182a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic int ExpectedNofPropertiesFromEstimate(int estimate) { 1830d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // If no properties are added in the constructor, they are more likely 1840d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // to be added later. 1850d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (estimate == 0) estimate = 2; 1860d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 1870d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // We do not shrink objects that go into a snapshot (yet), so we adjust 1880d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // the estimate conservatively. 1890d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (Serializer::enabled()) return estimate + 2; 1900d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 1910d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // Inobject slack tracking will reclaim redundant inobject space later, 1920d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // so we can afford to adjust the estimate generously. 193f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch return estimate + 8; 194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 195a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 196a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 197a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid SetExpectedNofPropertiesFromEstimate(Handle<SharedFunctionInfo> shared, 198a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int estimate) { 1990d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // See the comment in SetExpectedNofProperties. 2000d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (shared->live_objects_may_exist()) return; 2010d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 202a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block shared->set_expected_nof_properties( 203a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExpectedNofPropertiesFromEstimate(estimate)); 204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 205a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 207a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid NormalizeProperties(Handle<JSObject> object, 208a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block PropertyNormalizationMode mode, 209a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int expected_additional_properties) { 21044f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION_VOID(object->GetIsolate(), 21144f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->NormalizeProperties( 21244f0eee88ff00398ff7f715fab053374d808c90dSteve Block mode, 21344f0eee88ff00398ff7f715fab053374d808c90dSteve Block expected_additional_properties)); 214a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 215a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 217a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid NormalizeElements(Handle<JSObject> object) { 21844f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION_VOID(object->GetIsolate(), 21944f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->NormalizeElements()); 220a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 221a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 222a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 223a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid TransformToFastProperties(Handle<JSObject> object, 224a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int unused_property_fields) { 225a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CALL_HEAP_FUNCTION_VOID( 22644f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->GetIsolate(), 227a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block object->TransformToFastProperties(unused_property_fields)); 228a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 229a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 230a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 2315913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reckvoid NumberDictionarySet(Handle<NumberDictionary> dictionary, 2325913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck uint32_t index, 2335913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck Handle<Object> value, 2345913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck PropertyDetails details) { 23544f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION_VOID(dictionary->GetIsolate(), 23644f0eee88ff00398ff7f715fab053374d808c90dSteve Block dictionary->Set(index, *value, details)); 2375913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck} 2385913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck 2395913587db4c6bab03d97bfe44b06289fd6d7270dJohn Reck 240a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid FlattenString(Handle<String> string) { 24144f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION_VOID(string->GetIsolate(), string->TryFlatten()); 2428defd9ff6930b4e24729971a61cf7469daf119beSteve Block} 2438defd9ff6930b4e24729971a61cf7469daf119beSteve Block 2448defd9ff6930b4e24729971a61cf7469daf119beSteve Block 2458defd9ff6930b4e24729971a61cf7469daf119beSteve BlockHandle<String> FlattenGetString(Handle<String> string) { 24644f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(string->GetIsolate(), string->TryFlatten(), String); 247a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 248a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 249a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 250a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> SetPrototype(Handle<JSFunction> function, 251a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> prototype) { 2526ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ASSERT(function->should_have_prototype()); 25344f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(function->GetIsolate(), 25444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Accessors::FunctionSetPrototype(*function, 255a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block *prototype, 256a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block NULL), 257a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Object); 258a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 259a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 260a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 261a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> SetProperty(Handle<JSObject> object, 262a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> key, 263a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> value, 264e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch PropertyAttributes attributes, 265e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch StrictModeFlag strict_mode) { 26644f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(object->GetIsolate(), 26744f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->SetProperty(*key, *value, attributes, strict_mode), 268e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object); 269a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 270a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 271a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 272a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> SetProperty(Handle<Object> object, 273a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> key, 274a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> value, 275e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch PropertyAttributes attributes, 276e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch StrictModeFlag strict_mode) { 27744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 278a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CALL_HEAP_FUNCTION( 27944f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate, 28044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Runtime::SetObjectProperty( 28144f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate, object, key, value, attributes, strict_mode), 282e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object); 283a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 284a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 285a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 286a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> ForceSetProperty(Handle<JSObject> object, 287a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> key, 288a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> value, 289a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block PropertyAttributes attributes) { 29044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = object->GetIsolate(); 291a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CALL_HEAP_FUNCTION( 29244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate, 293e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Runtime::ForceSetObjectProperty( 29444f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate, object, key, value, attributes), 295e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object); 296a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 297a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 298a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 2993100271588b61cbc1dc472a3f2f105d2eed8497fAndrei PopescuHandle<Object> SetNormalizedProperty(Handle<JSObject> object, 3003100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu Handle<String> key, 3013100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu Handle<Object> value, 3023100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu PropertyDetails details) { 30344f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(object->GetIsolate(), 30444f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->SetNormalizedProperty(*key, *value, details), 3053100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu Object); 3063100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu} 3073100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 3083100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 309a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> ForceDeleteProperty(Handle<JSObject> object, 310a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> key) { 31144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = object->GetIsolate(); 31244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, 31344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Runtime::ForceDeleteObjectProperty(isolate, object, key), 31444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object); 315a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 316a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 317a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 318086aeeaae12517475c22695a200be45495516549Ben MurdochHandle<Object> SetLocalPropertyIgnoreAttributes( 319a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSObject> object, 320a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> key, 321a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> value, 322a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block PropertyAttributes attributes) { 32344f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION( 32444f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->GetIsolate(), 32544f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->SetLocalPropertyIgnoreAttributes(*key, *value, attributes), 32644f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object); 327a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 328a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 329a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 3301e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid SetLocalPropertyNoThrow(Handle<JSObject> object, 3311e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Handle<String> key, 3321e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Handle<Object> value, 3331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block PropertyAttributes attributes) { 33444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = object->GetIsolate(); 33544f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(!isolate->has_pending_exception()); 3361e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block CHECK(!SetLocalPropertyIgnoreAttributes( 3371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block object, key, value, attributes).is_null()); 33844f0eee88ff00398ff7f715fab053374d808c90dSteve Block CHECK(!isolate->has_pending_exception()); 3391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 3401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3411e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 342a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> SetPropertyWithInterceptor(Handle<JSObject> object, 343a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> key, 344a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> value, 345e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch PropertyAttributes attributes, 346e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch StrictModeFlag strict_mode) { 34744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(object->GetIsolate(), 34844f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->SetPropertyWithInterceptor(*key, 349a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block *value, 350e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch attributes, 351e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch strict_mode), 352a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Object); 353a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 354a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 355a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 356a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> GetProperty(Handle<JSObject> obj, 357a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const char* name) { 35844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = obj->GetIsolate(); 35944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<String> str = isolate->factory()->LookupAsciiSymbol(name); 36044f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, obj->GetProperty(*str), Object); 361a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 362a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 363a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 364a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> GetProperty(Handle<Object> obj, 365a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> key) { 36644f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 36744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, 36844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Runtime::GetObjectProperty(isolate, obj, key), Object); 369a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 370a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 371a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 3728b112d2025046f85ef7f6be087c6129c872ebad2Ben MurdochHandle<Object> GetProperty(Handle<JSObject> obj, 3738b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Handle<String> name, 3748b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch LookupResult* result) { 3758b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch PropertyAttributes attributes; 3768b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Isolate* isolate = Isolate::Current(); 3778b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch CALL_HEAP_FUNCTION(isolate, 3788b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch obj->GetProperty(*obj, result, *name, &attributes), 3798b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Object); 3808b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 3818b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3828b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3836ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockHandle<Object> GetElement(Handle<Object> obj, 3846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block uint32_t index) { 38544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 38644f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, Runtime::GetElement(obj, index), Object); 3876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 3886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3896ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 390a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> GetPropertyWithInterceptor(Handle<JSObject> receiver, 391a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSObject> holder, 392a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> name, 393a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block PropertyAttributes* attributes) { 39444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = receiver->GetIsolate(); 39544f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, 39644f0eee88ff00398ff7f715fab053374d808c90dSteve Block holder->GetPropertyWithInterceptor(*receiver, 397a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block *name, 398a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block attributes), 399a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Object); 400a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 401a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 402a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 403a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> GetPrototype(Handle<Object> obj) { 404a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> result(obj->GetPrototype()); 405a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return result; 406a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 407a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 408a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 409402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei PopescuHandle<Object> SetPrototype(Handle<JSObject> obj, Handle<Object> value) { 410402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu const bool skip_hidden_prototypes = false; 41144f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(obj->GetIsolate(), 41244f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj->SetPrototype(*value, skip_hidden_prototypes), Object); 41344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 41444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 41544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 41644f0eee88ff00398ff7f715fab053374d808c90dSteve BlockHandle<Object> PreventExtensions(Handle<JSObject> object) { 41744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(object->GetIsolate(), object->PreventExtensions(), Object); 418402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu} 419402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 420402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 421a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> GetHiddenProperties(Handle<JSObject> obj, 422a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool create_if_needed) { 42344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = obj->GetIsolate(); 424d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object* holder = obj->BypassGlobalProxy(); 42544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (holder->IsUndefined()) return isolate->factory()->undefined_value(); 42644f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj = Handle<JSObject>(JSObject::cast(holder), isolate); 427a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 428a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (obj->HasFastProperties()) { 429a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If the object has fast properties, check whether the first slot 430a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // in the descriptor array matches the hidden symbol. Since the 431a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // hidden symbols hash code is zero (and no other string has hash 432a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // code zero) it will always occupy the first entry if present. 433a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block DescriptorArray* descriptors = obj->map()->instance_descriptors(); 434a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if ((descriptors->number_of_descriptors() > 0) && 43544f0eee88ff00398ff7f715fab053374d808c90dSteve Block (descriptors->GetKey(0) == isolate->heap()->hidden_symbol()) && 436a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block descriptors->IsProperty(0)) { 437a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(descriptors->GetType(0) == FIELD); 43844f0eee88ff00398ff7f715fab053374d808c90dSteve Block return Handle<Object>(obj->FastPropertyAt(descriptors->GetFieldIndex(0)), 43944f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate); 440a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 441a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 442a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 443a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Only attempt to find the hidden properties in the local object and not 444a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // in the prototype chain. Note that HasLocalProperty() can cause a GC in 445a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // the general case in the presence of interceptors. 446d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block if (!obj->HasHiddenPropertiesObject()) { 447a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Hidden properties object not found. Allocate a new hidden properties 448a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // object if requested. Otherwise return the undefined value. 449a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (create_if_needed) { 45044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<Object> hidden_obj = 45144f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->factory()->NewJSObject(isolate->object_function()); 45244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, 45344f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj->SetHiddenPropertiesObject(*hidden_obj), Object); 454a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 45544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return isolate->factory()->undefined_value(); 456a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 457a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 45844f0eee88ff00398ff7f715fab053374d808c90dSteve Block return Handle<Object>(obj->GetHiddenPropertiesObject(), isolate); 459a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 460a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 461a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 462a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> DeleteElement(Handle<JSObject> obj, 463a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t index) { 46444f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(obj->GetIsolate(), 46544f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj->DeleteElement(index, JSObject::NORMAL_DELETION), 466a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Object); 467a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 468a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 469a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 470a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> DeleteProperty(Handle<JSObject> obj, 471a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<String> prop) { 47244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(obj->GetIsolate(), 47344f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj->DeleteProperty(*prop, JSObject::NORMAL_DELETION), 474a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Object); 475a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 476a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 477a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 478a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> LookupSingleCharacterStringFromCode(uint32_t index) { 47944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 48044f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION( 48144f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate, 48244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->heap()->LookupSingleCharacterStringFromCode(index), Object); 483a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 484a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 485a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 4866ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockHandle<String> SubString(Handle<String> str, 4876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int start, 4886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int end, 4896ded16be15dd865a9b21ea304d5273c8be299c87Steve Block PretenureFlag pretenure) { 49044f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(str->GetIsolate(), 49144f0eee88ff00398ff7f715fab053374d808c90dSteve Block str->SubString(start, end, pretenure), String); 492a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 493a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 494a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 495a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<Object> SetElement(Handle<JSObject> object, 496a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t index, 497e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Handle<Object> value, 498e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch StrictModeFlag strict_mode) { 49944f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (object->HasExternalArrayElements()) { 500a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!value->IsSmi() && !value->IsHeapNumber() && !value->IsUndefined()) { 501a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool has_exception; 502a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> number = Execution::ToNumber(value, &has_exception); 503a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (has_exception) return Handle<Object>(); 504a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block value = number; 505a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 506a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 50744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(object->GetIsolate(), 50844f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->SetElement(index, *value, strict_mode), Object); 509a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 510a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 511a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 512086aeeaae12517475c22695a200be45495516549Ben MurdochHandle<Object> SetOwnElement(Handle<JSObject> object, 513086aeeaae12517475c22695a200be45495516549Ben Murdoch uint32_t index, 514e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Handle<Object> value, 515e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch StrictModeFlag strict_mode) { 516086aeeaae12517475c22695a200be45495516549Ben Murdoch ASSERT(!object->HasExternalArrayElements()); 51744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(object->GetIsolate(), 51844f0eee88ff00398ff7f715fab053374d808c90dSteve Block object->SetElement(index, *value, strict_mode, false), 519e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object); 520086aeeaae12517475c22695a200be45495516549Ben Murdoch} 521086aeeaae12517475c22695a200be45495516549Ben Murdoch 522086aeeaae12517475c22695a200be45495516549Ben Murdoch 523a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<JSObject> Copy(Handle<JSObject> obj) { 52444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = obj->GetIsolate(); 52544f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(isolate, 52644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->heap()->CopyJSObject(*obj), JSObject); 527a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 528a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 529a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 530f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeHandle<Object> SetAccessor(Handle<JSObject> obj, Handle<AccessorInfo> info) { 53144f0eee88ff00398ff7f715fab053374d808c90dSteve Block CALL_HEAP_FUNCTION(obj->GetIsolate(), obj->DefineAccessor(*info), Object); 532f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 533f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 534f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 535a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Wrappers for scripts are kept alive and cached in weak global 536a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// handles referred from proxy objects held by the scripts as long as 537a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// they are used. When they are not used anymore, the garbage 538a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// collector will call the weak callback on the global handle 539a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// associated with the wrapper and get rid of both the wrapper and the 540a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// handle. 541a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic void ClearWrapperCache(Persistent<v8::Value> handle, void*) { 542a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifdef ENABLE_HEAP_PROTECTION 543a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Weak reference callbacks are called as if from outside V8. We 544a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // need to reeenter to unprotect the heap. 545a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block VMState state(OTHER); 546a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif 547a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<Object> cache = Utils::OpenHandle(*handle); 548a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block JSValue* wrapper = JSValue::cast(*cache); 549a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Proxy* proxy = Script::cast(wrapper->value())->wrapper(); 550a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(proxy->proxy() == reinterpret_cast<Address>(cache.location())); 551a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block proxy->set_proxy(0); 55244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 55344f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->Destroy(cache.location()); 55444f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->counters()->script_wrappers()->Decrement(); 555a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 556a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 557a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 558a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<JSValue> GetScriptWrapper(Handle<Script> script) { 559a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (script->wrapper()->proxy() != NULL) { 560a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Return the script wrapper directly from the cache. 561a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return Handle<JSValue>( 562a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block reinterpret_cast<JSValue**>(script->wrapper()->proxy())); 563a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 56444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 565a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Construct a new script wrapper. 56644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->counters()->script_wrappers()->Increment(); 56744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<JSFunction> constructor = isolate->script_function(); 568a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSValue> result = 56944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<JSValue>::cast(isolate->factory()->NewJSObject(constructor)); 570a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result->set_value(*script); 571a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 572a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Create a new weak global handle and use it to cache the wrapper 573a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // for future use. The cache will automatically be cleared by the 574a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // garbage collector when it is not used anymore. 57544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<Object> handle = isolate->global_handles()->Create(*result); 57644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->MakeWeak(handle.location(), NULL, 57744f0eee88ff00398ff7f715fab053374d808c90dSteve Block &ClearWrapperCache); 578a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block script->wrapper()->set_proxy(reinterpret_cast<Address>(handle.location())); 579a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return result; 580a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 581a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 582a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 583a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Init line_ends array with code positions of line ends inside script 584a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// source. 585a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid InitScriptLineEnds(Handle<Script> script) { 586a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!script->line_ends()->IsUndefined()) return; 587a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 58844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = script->GetIsolate(); 58944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 590a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!script->source()->IsString()) { 591a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(script->source()->IsUndefined()); 59244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> empty = isolate->factory()->NewFixedArray(0); 5930d5e116f6aee03185f237311a943491bb079a768Kristian Monsen script->set_line_ends(*empty); 594d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block ASSERT(script->line_ends()->IsFixedArray()); 595a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return; 596a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 597a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 59844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<String> src(String::cast(script->source()), isolate); 5996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6006ded16be15dd865a9b21ea304d5273c8be299c87Steve Block Handle<FixedArray> array = CalculateLineEnds(src, true); 6016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 60244f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (*array != isolate->heap()->empty_fixed_array()) { 60344f0eee88ff00398ff7f715fab053374d808c90dSteve Block array->set_map(isolate->heap()->fixed_cow_array_map()); 6048a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 6058a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 6066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block script->set_line_ends(*array); 6076ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ASSERT(script->line_ends()->IsFixedArray()); 6086ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 6096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6118a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangtemplate <typename SourceChar> 61244f0eee88ff00398ff7f715fab053374d808c90dSteve Blockstatic void CalculateLineEnds(Isolate* isolate, 61344f0eee88ff00398ff7f715fab053374d808c90dSteve Block List<int>* line_ends, 6148a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang Vector<const SourceChar> src, 6158a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang bool with_last_line) { 6168a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang const int src_len = src.length(); 61744f0eee88ff00398ff7f715fab053374d808c90dSteve Block StringSearch<char, SourceChar> search(isolate, CStrVector("\n")); 618a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 6198a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // Find and record line ends. 620a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int position = 0; 621a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block while (position != -1 && position < src_len) { 6228a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang position = search.Search(src, position); 623a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (position != -1) { 6248a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang line_ends->Add(position); 625a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block position++; 6268a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } else if (with_last_line) { 6276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Even if the last line misses a line end, it is counted. 6288a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang line_ends->Add(src_len); 6298a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang return; 6306ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 631a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 6328a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 633a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 6348a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 6358a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) WangHandle<FixedArray> CalculateLineEnds(Handle<String> src, 6368a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang bool with_last_line) { 6378a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang src = FlattenGetString(src); 6388a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // Rough estimate of line count based on a roughly estimated average 6398a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // length of (unpacked) code. 6408a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang int line_count_estimate = src->length() >> 4; 6418a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang List<int> line_ends(line_count_estimate); 64244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = src->GetIsolate(); 6438a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang { 6448a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang AssertNoAllocation no_heap_allocation; // ensure vectors stay valid. 6458a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // Dispatch on type of strings. 6468a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (src->IsAsciiRepresentation()) { 64744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CalculateLineEnds(isolate, 64844f0eee88ff00398ff7f715fab053374d808c90dSteve Block &line_ends, 64944f0eee88ff00398ff7f715fab053374d808c90dSteve Block src->ToAsciiVector(), 65044f0eee88ff00398ff7f715fab053374d808c90dSteve Block with_last_line); 6518a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } else { 65244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CalculateLineEnds(isolate, 65344f0eee88ff00398ff7f715fab053374d808c90dSteve Block &line_ends, 65444f0eee88ff00398ff7f715fab053374d808c90dSteve Block src->ToUC16Vector(), 65544f0eee88ff00398ff7f715fab053374d808c90dSteve Block with_last_line); 6566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 657a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 6588a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang int line_count = line_ends.length(); 65944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> array = isolate->factory()->NewFixedArray(line_count); 6608a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang for (int i = 0; i < line_count; i++) { 6618a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang array->set(i, Smi::FromInt(line_ends[i])); 6628a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 6636ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return array; 664a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 665a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 666a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 667a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Convert code position into line number. 668a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockint GetScriptLineNumber(Handle<Script> script, int code_pos) { 669a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block InitScriptLineEnds(script); 670a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block AssertNoAllocation no_allocation; 671402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu FixedArray* line_ends_array = FixedArray::cast(script->line_ends()); 672d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block const int line_ends_len = line_ends_array->length(); 673a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 6748a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (!line_ends_len) return -1; 675402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 6768a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if ((Smi::cast(line_ends_array->get(0)))->value() >= code_pos) { 677402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu return script->line_offset()->value(); 6788a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 679402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu 680402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu int left = 0; 681402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu int right = line_ends_len; 682402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu while (int half = (right - left) / 2) { 683402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu if ((Smi::cast(line_ends_array->get(left + half)))->value() > code_pos) { 684402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu right -= half; 685402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu } else { 686402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu left += half; 687a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 688a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 689402d937239b0e2fd11bf2f4fe972ad78aa9fd481Andrei Popescu return right + script->line_offset()->value(); 690a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 691a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 692a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 6936ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockint GetScriptLineNumberSafe(Handle<Script> script, int code_pos) { 6946ded16be15dd865a9b21ea304d5273c8be299c87Steve Block AssertNoAllocation no_allocation; 6956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (!script->line_ends()->IsUndefined()) { 6966ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return GetScriptLineNumber(script, code_pos); 6976ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 6986ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Slow mode: we do not have line_ends. We have to iterate through source. 6996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (!script->source()->IsString()) { 7006ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return -1; 7016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 7026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block String* source = String::cast(script->source()); 7036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int line = 0; 7046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int len = source->length(); 7056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (int pos = 0; pos < len; pos++) { 7066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (pos == code_pos) { 7076ded16be15dd865a9b21ea304d5273c8be299c87Steve Block break; 7086ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 7096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (source->Get(pos) == '\n') { 7106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block line++; 7116ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 7126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 7136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return line; 7146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 7156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 7166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 717a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid CustomArguments::IterateInstance(ObjectVisitor* v) { 7186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block v->VisitPointers(values_, values_ + ARRAY_SIZE(values_)); 719a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 720a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 721a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 722a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Compute the property keys from the interceptor. 723a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockv8::Handle<v8::Array> GetKeysForNamedInterceptor(Handle<JSObject> receiver, 724a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSObject> object) { 72544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = receiver->GetIsolate(); 726a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<InterceptorInfo> interceptor(object->GetNamedInterceptor()); 72744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CustomArguments args(isolate, interceptor->data(), *receiver, *object); 728a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::AccessorInfo info(args.end()); 729a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::Handle<v8::Array> result; 730a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!interceptor->enumerator()->IsUndefined()) { 731a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::NamedPropertyEnumerator enum_fun = 732a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::ToCData<v8::NamedPropertyEnumerator>(interceptor->enumerator()); 73344f0eee88ff00398ff7f715fab053374d808c90dSteve Block LOG(isolate, ApiObjectAccess("interceptor-named-enum", *object)); 734a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { 735a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Leaving JavaScript. 73644f0eee88ff00398ff7f715fab053374d808c90dSteve Block VMState state(isolate, EXTERNAL); 737a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result = enum_fun(info); 738a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 739a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 740a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return result; 741a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 742a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 743a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 744a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Compute the element keys from the interceptor. 745a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockv8::Handle<v8::Array> GetKeysForIndexedInterceptor(Handle<JSObject> receiver, 746a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<JSObject> object) { 74744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = receiver->GetIsolate(); 748a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<InterceptorInfo> interceptor(object->GetIndexedInterceptor()); 74944f0eee88ff00398ff7f715fab053374d808c90dSteve Block CustomArguments args(isolate, interceptor->data(), *receiver, *object); 750a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::AccessorInfo info(args.end()); 751a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::Handle<v8::Array> result; 752a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!interceptor->enumerator()->IsUndefined()) { 753a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::IndexedPropertyEnumerator enum_fun = 754a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::ToCData<v8::IndexedPropertyEnumerator>(interceptor->enumerator()); 75544f0eee88ff00398ff7f715fab053374d808c90dSteve Block LOG(isolate, ApiObjectAccess("interceptor-indexed-enum", *object)); 756a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { 757a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Leaving JavaScript. 75844f0eee88ff00398ff7f715fab053374d808c90dSteve Block VMState state(isolate, EXTERNAL); 759a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block result = enum_fun(info); 760a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 761a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 762a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return result; 763a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 764a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 765a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 766f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdochstatic bool ContainsOnlyValidKeys(Handle<FixedArray> array) { 767f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch int len = array->length(); 768f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch for (int i = 0; i < len; i++) { 769f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch Object* e = array->get(i); 770f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch if (!(e->IsString() || e->IsNumber())) return false; 771f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch } 772f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch return true; 773f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch} 774f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 775f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 776a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<FixedArray> GetKeysInFixedArrayFor(Handle<JSObject> object, 777a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block KeyCollectionType type) { 778f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch USE(ContainsOnlyValidKeys); 77944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = object->GetIsolate(); 78044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> content = isolate->factory()->empty_fixed_array(); 78144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<JSObject> arguments_boilerplate = Handle<JSObject>( 78244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->context()->global_context()->arguments_boilerplate(), 78344f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate); 78444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<JSFunction> arguments_function = Handle<JSFunction>( 78544f0eee88ff00398ff7f715fab053374d808c90dSteve Block JSFunction::cast(arguments_boilerplate->map()->constructor()), 78644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate); 787a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 788a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Only collect keys if access is permitted. 789a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (Handle<Object> p = object; 79044f0eee88ff00398ff7f715fab053374d808c90dSteve Block *p != isolate->heap()->null_value(); 79144f0eee88ff00398ff7f715fab053374d808c90dSteve Block p = Handle<Object>(p->GetPrototype(), isolate)) { 79244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<JSObject> current(JSObject::cast(*p), isolate); 793a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 794a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check access rights if required. 795a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (current->IsAccessCheckNeeded() && 79644f0eee88ff00398ff7f715fab053374d808c90dSteve Block !isolate->MayNamedAccess(*current, 79744f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->heap()->undefined_value(), 79844f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::ACCESS_KEYS)) { 79944f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->ReportFailedAccessCheck(*current, v8::ACCESS_KEYS); 800a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block break; 801a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 802a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 803a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Compute the element keys. 804a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<FixedArray> element_keys = 80544f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->factory()->NewFixedArray(current->NumberOfEnumElements()); 806a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block current->GetEnumElementKeys(*element_keys); 807a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block content = UnionOfKeys(content, element_keys); 808f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ASSERT(ContainsOnlyValidKeys(content)); 809a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 810a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Add the element keys from the interceptor. 811a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (current->HasIndexedInterceptor()) { 812a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::Handle<v8::Array> result = 813a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block GetKeysForIndexedInterceptor(object, current); 814a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!result.IsEmpty()) 815a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block content = AddKeysFromJSArray(content, v8::Utils::OpenHandle(*result)); 816f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ASSERT(ContainsOnlyValidKeys(content)); 817a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 818a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 819d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // We can cache the computed property keys if access checks are 820d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // not needed and no interceptors are involved. 821d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // 822d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // We do not use the cache if the object has elements and 823d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // therefore it does not make sense to cache the property names 824d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // for arguments objects. Arguments objects will always have 825d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // elements. 82650ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // Wrapped strings have elements, but don't have an elements 82750ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // array or dictionary. So the fast inline test for whether to 82850ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen // use the cache says yes, so we should not create a cache. 829d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block bool cache_enum_keys = 830d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block ((current->map()->constructor() != *arguments_function) && 83150ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen !current->IsJSValue() && 832d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block !current->IsAccessCheckNeeded() && 833d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block !current->HasNamedInterceptor() && 834d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block !current->HasIndexedInterceptor()); 835d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Compute the property keys and cache them if possible. 836d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block content = 837d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block UnionOfKeys(content, GetEnumPropertyKeys(current, cache_enum_keys)); 838f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ASSERT(ContainsOnlyValidKeys(content)); 839a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 840a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Add the property keys from the interceptor. 841a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (current->HasNamedInterceptor()) { 842a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block v8::Handle<v8::Array> result = 843a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block GetKeysForNamedInterceptor(object, current); 844a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!result.IsEmpty()) 845a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block content = AddKeysFromJSArray(content, v8::Utils::OpenHandle(*result)); 846f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ASSERT(ContainsOnlyValidKeys(content)); 847a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 848a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 849a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If we only want local properties we bail out after the first 850a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // iteration. 851a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (type == LOCAL_ONLY) 852a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block break; 853a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 854a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return content; 855a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 856a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 857a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 858a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockHandle<JSArray> GetKeysFor(Handle<JSObject> object) { 85944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = object->GetIsolate(); 86044f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->counters()->for_in()->Increment(); 861a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<FixedArray> elements = GetKeysInFixedArrayFor(object, 862a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block INCLUDE_PROTOS); 86344f0eee88ff00398ff7f715fab053374d808c90dSteve Block return isolate->factory()->NewJSArrayWithElements(elements); 864a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 865a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 866a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 867d0582a6c46733687d045e4188a1bcd0123c758a1Steve BlockHandle<FixedArray> GetEnumPropertyKeys(Handle<JSObject> object, 868d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block bool cache_result) { 869a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int index = 0; 87044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = object->GetIsolate(); 871a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (object->HasFastProperties()) { 872a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (object->map()->instance_descriptors()->HasEnumCache()) { 87344f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->counters()->enum_cache_hits()->Increment(); 874a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block DescriptorArray* desc = object->map()->instance_descriptors(); 87544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return Handle<FixedArray>(FixedArray::cast(desc->GetEnumCache()), 87644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate); 877a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 87844f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->counters()->enum_cache_misses()->Increment(); 879a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int num_enum = object->NumberOfEnumProperties(); 88044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> storage = isolate->factory()->NewFixedArray(num_enum); 88144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> sort_array = isolate->factory()->NewFixedArray(num_enum); 882a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Handle<DescriptorArray> descs = 88344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<DescriptorArray>(object->map()->instance_descriptors(), isolate); 884a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < descs->number_of_descriptors(); i++) { 885a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (descs->IsProperty(i) && !descs->IsDontEnum(i)) { 886a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block (*storage)->set(index, descs->GetKey(i)); 887a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block PropertyDetails details(descs->GetDetails(i)); 888a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block (*sort_array)->set(index, Smi::FromInt(details.index())); 889a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block index++; 890a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 891a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 892a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block (*storage)->SortPairs(*sort_array, sort_array->length()); 893d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block if (cache_result) { 894d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Handle<FixedArray> bridge_storage = 89544f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->factory()->NewFixedArray( 89644f0eee88ff00398ff7f715fab053374d808c90dSteve Block DescriptorArray::kEnumCacheBridgeLength); 897d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block DescriptorArray* desc = object->map()->instance_descriptors(); 898d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block desc->SetEnumCache(*bridge_storage, *storage); 899d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 900a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(storage->length() == index); 901a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return storage; 902a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 903a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int num_enum = object->NumberOfEnumProperties(); 90444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> storage = isolate->factory()->NewFixedArray(num_enum); 90544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<FixedArray> sort_array = isolate->factory()->NewFixedArray(num_enum); 906a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block object->property_dictionary()->CopyEnumKeysTo(*storage, *sort_array); 907a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return storage; 908a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 909a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 910a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 911a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 9124515c472dc3e5ed2448a564600976759e569a0a8Leon Clarkebool EnsureCompiled(Handle<SharedFunctionInfo> shared, 9134515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke ClearExceptionFlag flag) { 9144515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke return shared->is_compiled() || CompileLazyShared(shared, flag); 9154515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke} 9164515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke 9174515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke 9184515c472dc3e5ed2448a564600976759e569a0a8Leon Clarkestatic bool CompileLazyHelper(CompilationInfo* info, 9194515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke ClearExceptionFlag flag) { 920a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Compile the source information to a code object. 921b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ASSERT(info->IsOptimizing() || !info->shared_info()->is_compiled()); 92244f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(!info->isolate()->has_pending_exception()); 9234515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke bool result = Compiler::CompileLazy(info); 92444f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(result != Isolate::Current()->has_pending_exception()); 92544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (!result && flag == CLEAR_EXCEPTION) { 92644f0eee88ff00398ff7f715fab053374d808c90dSteve Block info->isolate()->clear_pending_exception(); 92744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 928a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return result; 929a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 930a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 931a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 9324515c472dc3e5ed2448a564600976759e569a0a8Leon Clarkebool CompileLazyShared(Handle<SharedFunctionInfo> shared, 9334515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke ClearExceptionFlag flag) { 9343100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu CompilationInfo info(shared); 9354515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke return CompileLazyHelper(&info, flag); 9364515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke} 9374515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke 9384515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke 939e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochstatic bool CompileLazyFunction(Handle<JSFunction> function, 940e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ClearExceptionFlag flag, 941e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch InLoopFlag in_loop_flag) { 942b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = true; 943756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (function->shared()->is_compiled()) { 944b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch function->ReplaceCode(function->shared()->code()); 945756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick function->shared()->set_code_age(0); 946756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } else { 947f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch CompilationInfo info(function); 948e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (in_loop_flag == IN_LOOP) info.MarkAsInLoop(); 949b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result = CompileLazyHelper(&info, flag); 950f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ASSERT(!result || function->is_compiled()); 951b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 952b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 953a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 954a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 955a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 956e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool CompileLazy(Handle<JSFunction> function, 957e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ClearExceptionFlag flag) { 958e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return CompileLazyFunction(function, flag, NOT_IN_LOOP); 959e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 960e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 961e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 9624515c472dc3e5ed2448a564600976759e569a0a8Leon Clarkebool CompileLazyInLoop(Handle<JSFunction> function, 9634515c472dc3e5ed2448a564600976759e569a0a8Leon Clarke ClearExceptionFlag flag) { 964e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return CompileLazyFunction(function, flag, IN_LOOP); 965b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 966b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 967b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 968e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool CompileOptimized(Handle<JSFunction> function, 969e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int osr_ast_id, 970e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ClearExceptionFlag flag) { 971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CompilationInfo info(function); 972b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch info.SetOptimizing(osr_ast_id); 973e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return CompileLazyHelper(&info, flag); 974a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 975a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 976a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 977