| // Copyright 2017 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/builtins/accessors.h" |
| #include "src/codegen/compilation-cache.h" |
| #include "src/execution/isolate.h" |
| #include "src/execution/protectors.h" |
| #include "src/heap/factory.h" |
| #include "src/heap/heap-inl.h" |
| #include "src/ic/handler-configuration.h" |
| #include "src/init/heap-symbols.h" |
| #include "src/init/setup-isolate.h" |
| #include "src/interpreter/interpreter.h" |
| #include "src/objects/arguments.h" |
| #include "src/objects/cell-inl.h" |
| #include "src/objects/contexts.h" |
| #include "src/objects/data-handler.h" |
| #include "src/objects/debug-objects.h" |
| #include "src/objects/descriptor-array.h" |
| #include "src/objects/dictionary.h" |
| #include "src/objects/foreign.h" |
| #include "src/objects/heap-number.h" |
| #include "src/objects/instance-type-inl.h" |
| #include "src/objects/js-generator.h" |
| #include "src/objects/js-weak-refs.h" |
| #include "src/objects/layout-descriptor.h" |
| #include "src/objects/literal-objects-inl.h" |
| #include "src/objects/lookup-cache.h" |
| #include "src/objects/map.h" |
| #include "src/objects/microtask.h" |
| #include "src/objects/objects-inl.h" |
| #include "src/objects/oddball-inl.h" |
| #include "src/objects/ordered-hash-table.h" |
| #include "src/objects/promise.h" |
| #include "src/objects/property-descriptor-object.h" |
| #include "src/objects/script.h" |
| #include "src/objects/shared-function-info.h" |
| #include "src/objects/smi.h" |
| #include "src/objects/source-text-module.h" |
| #include "src/objects/stack-frame-info.h" |
| #include "src/objects/string.h" |
| #include "src/objects/synthetic-module.h" |
| #include "src/objects/template-objects-inl.h" |
| #include "src/objects/torque-defined-classes-inl.h" |
| #include "src/regexp/regexp.h" |
| #include "src/wasm/wasm-objects.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| namespace { |
| |
| Handle<SharedFunctionInfo> CreateSharedFunctionInfo( |
| Isolate* isolate, Builtins::Name builtin_id, int len, |
| FunctionKind kind = FunctionKind::kNormalFunction) { |
| Handle<SharedFunctionInfo> shared = |
| isolate->factory()->NewSharedFunctionInfoForBuiltin( |
| isolate->factory()->empty_string(), builtin_id, kind); |
| shared->set_internal_formal_parameter_count(len); |
| shared->set_length(len); |
| return shared; |
| } |
| |
| } // namespace |
| |
| bool SetupIsolateDelegate::SetupHeapInternal(Heap* heap) { |
| return heap->CreateHeapObjects(); |
| } |
| |
| bool Heap::CreateHeapObjects() { |
| // Create initial maps. |
| if (!CreateInitialMaps()) return false; |
| CreateApiObjects(); |
| |
| // Create initial objects |
| CreateInitialObjects(); |
| CreateInternalAccessorInfoObjects(); |
| CHECK_EQ(0u, gc_count_); |
| |
| set_native_contexts_list(ReadOnlyRoots(this).undefined_value()); |
| set_allocation_sites_list(ReadOnlyRoots(this).undefined_value()); |
| set_dirty_js_finalization_registries_list( |
| ReadOnlyRoots(this).undefined_value()); |
| set_dirty_js_finalization_registries_list_tail( |
| ReadOnlyRoots(this).undefined_value()); |
| |
| return true; |
| } |
| |
| const Heap::StringTypeTable Heap::string_type_table[] = { |
| #define STRING_TYPE_ELEMENT(type, size, name, CamelName) \ |
| {type, size, RootIndex::k##CamelName##Map}, |
| STRING_TYPE_LIST(STRING_TYPE_ELEMENT) |
| #undef STRING_TYPE_ELEMENT |
| }; |
| |
| const Heap::ConstantStringTable Heap::constant_string_table[] = { |
| {"", RootIndex::kempty_string}, |
| #define CONSTANT_STRING_ELEMENT(_, name, contents) \ |
| {contents, RootIndex::k##name}, |
| INTERNALIZED_STRING_LIST_GENERATOR(CONSTANT_STRING_ELEMENT, /* not used */) |
| #undef CONSTANT_STRING_ELEMENT |
| }; |
| |
| const Heap::StructTable Heap::struct_table[] = { |
| #define STRUCT_TABLE_ELEMENT(TYPE, Name, name) \ |
| {TYPE, Name::kSize, RootIndex::k##Name##Map}, |
| STRUCT_LIST(STRUCT_TABLE_ELEMENT) |
| #undef STRUCT_TABLE_ELEMENT |
| |
| #define ALLOCATION_SITE_ELEMENT(_, TYPE, Name, Size, name) \ |
| {TYPE, Name::kSize##Size, RootIndex::k##Name##Size##Map}, |
| ALLOCATION_SITE_LIST(ALLOCATION_SITE_ELEMENT, /* not used */) |
| #undef ALLOCATION_SITE_ELEMENT |
| |
| #define DATA_HANDLER_ELEMENT(_, TYPE, Name, Size, name) \ |
| {TYPE, Name::kSizeWithData##Size, RootIndex::k##Name##Size##Map}, |
| DATA_HANDLER_LIST(DATA_HANDLER_ELEMENT, /* not used */) |
| #undef DATA_HANDLER_ELEMENT |
| }; |
| |
| AllocationResult Heap::AllocateMap(InstanceType instance_type, |
| int instance_size, |
| ElementsKind elements_kind, |
| int inobject_properties) { |
| STATIC_ASSERT(LAST_JS_OBJECT_TYPE == LAST_TYPE); |
| bool is_js_object = InstanceTypeChecker::IsJSObject(instance_type); |
| bool is_wasm_object = |
| (instance_type == WASM_STRUCT_TYPE || instance_type == WASM_ARRAY_TYPE); |
| DCHECK_IMPLIES(is_js_object && |
| !Map::CanHaveFastTransitionableElementsKind(instance_type), |
| IsDictionaryElementsKind(elements_kind) || |
| IsTerminalElementsKind(elements_kind)); |
| HeapObject result; |
| // JSObjects have maps with a mutable prototype_validity_cell, so they cannot |
| // go in RO_SPACE. Maps for managed Wasm objects have mutable subtype lists. |
| bool is_mutable = is_js_object || is_wasm_object; |
| AllocationResult allocation = |
| AllocateRaw(Map::kSize, is_mutable ? AllocationType::kMap |
| : AllocationType::kReadOnly); |
| if (!allocation.To(&result)) return allocation; |
| |
| result.set_map_after_allocation(ReadOnlyRoots(this).meta_map(), |
| SKIP_WRITE_BARRIER); |
| Map map = isolate()->factory()->InitializeMap( |
| Map::cast(result), instance_type, instance_size, elements_kind, |
| inobject_properties); |
| |
| return map; |
| } |
| |
| AllocationResult Heap::AllocatePartialMap(InstanceType instance_type, |
| int instance_size) { |
| Object result; |
| AllocationResult allocation = |
| AllocateRaw(Map::kSize, AllocationType::kReadOnly); |
| if (!allocation.To(&result)) return allocation; |
| // Map::cast cannot be used due to uninitialized map field. |
| Map map = Map::unchecked_cast(result); |
| map.set_map_after_allocation( |
| Map::unchecked_cast(isolate()->root(RootIndex::kMetaMap)), |
| SKIP_WRITE_BARRIER); |
| map.set_instance_type(instance_type); |
| map.set_instance_size(instance_size); |
| // Initialize to only containing tagged fields. |
| if (FLAG_unbox_double_fields) { |
| map.set_layout_descriptor(LayoutDescriptor::FastPointerLayout(), |
| kReleaseStore); |
| } |
| // GetVisitorId requires a properly initialized LayoutDescriptor. |
| map.set_visitor_id(Map::GetVisitorId(map)); |
| map.set_inobject_properties_start_or_constructor_function_index(0); |
| DCHECK(!map.IsJSObjectMap()); |
| map.set_prototype_validity_cell(Smi::FromInt(Map::kPrototypeChainValid)); |
| map.SetInObjectUnusedPropertyFields(0); |
| map.set_bit_field(0); |
| map.set_bit_field2(0); |
| int bit_field3 = |
| Map::Bits3::EnumLengthBits::encode(kInvalidEnumCacheSentinel) | |
| Map::Bits3::OwnsDescriptorsBit::encode(true) | |
| Map::Bits3::ConstructionCounterBits::encode(Map::kNoSlackTracking); |
| map.set_bit_field3(bit_field3); |
| DCHECK(!map.is_in_retained_map_list()); |
| map.clear_padding(); |
| map.set_elements_kind(TERMINAL_FAST_ELEMENTS_KIND); |
| return map; |
| } |
| |
| void Heap::FinalizePartialMap(Map map) { |
| ReadOnlyRoots roots(this); |
| map.set_dependent_code(DependentCode::cast(roots.empty_weak_fixed_array())); |
| map.set_raw_transitions(MaybeObject::FromSmi(Smi::zero())); |
| map.SetInstanceDescriptors(isolate(), roots.empty_descriptor_array(), 0); |
| if (FLAG_unbox_double_fields) { |
| map.set_layout_descriptor(LayoutDescriptor::FastPointerLayout(), |
| kReleaseStore); |
| } |
| map.set_prototype(roots.null_value()); |
| map.set_constructor_or_backpointer(roots.null_value()); |
| } |
| |
| AllocationResult Heap::Allocate(Map map, AllocationType allocation_type) { |
| DCHECK(map.instance_type() != MAP_TYPE); |
| int size = map.instance_size(); |
| HeapObject result; |
| AllocationResult allocation = AllocateRaw(size, allocation_type); |
| if (!allocation.To(&result)) return allocation; |
| // New space objects are allocated white. |
| WriteBarrierMode write_barrier_mode = |
| allocation_type == AllocationType::kYoung ? SKIP_WRITE_BARRIER |
| : UPDATE_WRITE_BARRIER; |
| result.set_map_after_allocation(map, write_barrier_mode); |
| return result; |
| } |
| |
| bool Heap::CreateInitialMaps() { |
| HeapObject obj; |
| { |
| AllocationResult allocation = AllocatePartialMap(MAP_TYPE, Map::kSize); |
| if (!allocation.To(&obj)) return false; |
| } |
| // Map::cast cannot be used due to uninitialized map field. |
| Map new_meta_map = Map::unchecked_cast(obj); |
| set_meta_map(new_meta_map); |
| new_meta_map.set_map_after_allocation(new_meta_map); |
| |
| ReadOnlyRoots roots(this); |
| { // Partial map allocation |
| #define ALLOCATE_PARTIAL_MAP(instance_type, size, field_name) \ |
| { \ |
| Map map; \ |
| if (!AllocatePartialMap((instance_type), (size)).To(&map)) return false; \ |
| set_##field_name##_map(map); \ |
| } |
| |
| ALLOCATE_PARTIAL_MAP(FIXED_ARRAY_TYPE, kVariableSizeSentinel, fixed_array); |
| ALLOCATE_PARTIAL_MAP(WEAK_FIXED_ARRAY_TYPE, kVariableSizeSentinel, |
| weak_fixed_array); |
| ALLOCATE_PARTIAL_MAP(WEAK_ARRAY_LIST_TYPE, kVariableSizeSentinel, |
| weak_array_list); |
| ALLOCATE_PARTIAL_MAP(FIXED_ARRAY_TYPE, kVariableSizeSentinel, |
| fixed_cow_array) |
| DCHECK_NE(roots.fixed_array_map(), roots.fixed_cow_array_map()); |
| |
| ALLOCATE_PARTIAL_MAP(DESCRIPTOR_ARRAY_TYPE, kVariableSizeSentinel, |
| descriptor_array) |
| |
| ALLOCATE_PARTIAL_MAP(ODDBALL_TYPE, Oddball::kSize, undefined); |
| ALLOCATE_PARTIAL_MAP(ODDBALL_TYPE, Oddball::kSize, null); |
| ALLOCATE_PARTIAL_MAP(ODDBALL_TYPE, Oddball::kSize, the_hole); |
| |
| #undef ALLOCATE_PARTIAL_MAP |
| } |
| |
| // Allocate the empty array. |
| { |
| AllocationResult alloc = |
| AllocateRaw(FixedArray::SizeFor(0), AllocationType::kReadOnly); |
| if (!alloc.To(&obj)) return false; |
| obj.set_map_after_allocation(roots.fixed_array_map(), SKIP_WRITE_BARRIER); |
| FixedArray::cast(obj).set_length(0); |
| } |
| set_empty_fixed_array(FixedArray::cast(obj)); |
| |
| { |
| AllocationResult alloc = |
| AllocateRaw(WeakFixedArray::SizeFor(0), AllocationType::kReadOnly); |
| if (!alloc.To(&obj)) return false; |
| obj.set_map_after_allocation(roots.weak_fixed_array_map(), |
| SKIP_WRITE_BARRIER); |
| WeakFixedArray::cast(obj).set_length(0); |
| } |
| set_empty_weak_fixed_array(WeakFixedArray::cast(obj)); |
| |
| { |
| AllocationResult allocation = AllocateRaw(WeakArrayList::SizeForCapacity(0), |
| AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| obj.set_map_after_allocation(roots.weak_array_list_map(), |
| SKIP_WRITE_BARRIER); |
| WeakArrayList::cast(obj).set_capacity(0); |
| WeakArrayList::cast(obj).set_length(0); |
| } |
| set_empty_weak_array_list(WeakArrayList::cast(obj)); |
| |
| { |
| AllocationResult allocation = |
| Allocate(roots.null_map(), AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| } |
| set_null_value(Oddball::cast(obj)); |
| Oddball::cast(obj).set_kind(Oddball::kNull); |
| |
| { |
| AllocationResult allocation = |
| Allocate(roots.undefined_map(), AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| } |
| set_undefined_value(Oddball::cast(obj)); |
| Oddball::cast(obj).set_kind(Oddball::kUndefined); |
| DCHECK(!InYoungGeneration(roots.undefined_value())); |
| { |
| AllocationResult allocation = |
| Allocate(roots.the_hole_map(), AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| } |
| set_the_hole_value(Oddball::cast(obj)); |
| Oddball::cast(obj).set_kind(Oddball::kTheHole); |
| |
| // Set preliminary exception sentinel value before actually initializing it. |
| set_exception(roots.null_value()); |
| |
| // Setup the struct maps first (needed for the EnumCache). |
| for (unsigned i = 0; i < arraysize(struct_table); i++) { |
| const StructTable& entry = struct_table[i]; |
| Map map; |
| if (!AllocatePartialMap(entry.type, entry.size).To(&map)) return false; |
| roots_table()[entry.index] = map.ptr(); |
| } |
| |
| // Allocate the empty enum cache. |
| { |
| AllocationResult allocation = |
| Allocate(roots.enum_cache_map(), AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| } |
| set_empty_enum_cache(EnumCache::cast(obj)); |
| EnumCache::cast(obj).set_keys(roots.empty_fixed_array()); |
| EnumCache::cast(obj).set_indices(roots.empty_fixed_array()); |
| |
| // Allocate the empty descriptor array. |
| { |
| int size = DescriptorArray::SizeFor(0); |
| if (!AllocateRaw(size, AllocationType::kReadOnly).To(&obj)) return false; |
| obj.set_map_after_allocation(roots.descriptor_array_map(), |
| SKIP_WRITE_BARRIER); |
| DescriptorArray array = DescriptorArray::cast(obj); |
| array.Initialize(roots.empty_enum_cache(), roots.undefined_value(), 0, 0); |
| } |
| set_empty_descriptor_array(DescriptorArray::cast(obj)); |
| |
| // Fix the instance_descriptors for the existing maps. |
| FinalizePartialMap(roots.meta_map()); |
| FinalizePartialMap(roots.fixed_array_map()); |
| FinalizePartialMap(roots.weak_fixed_array_map()); |
| FinalizePartialMap(roots.weak_array_list_map()); |
| FinalizePartialMap(roots.fixed_cow_array_map()); |
| FinalizePartialMap(roots.descriptor_array_map()); |
| FinalizePartialMap(roots.undefined_map()); |
| roots.undefined_map().set_is_undetectable(true); |
| FinalizePartialMap(roots.null_map()); |
| roots.null_map().set_is_undetectable(true); |
| FinalizePartialMap(roots.the_hole_map()); |
| for (unsigned i = 0; i < arraysize(struct_table); ++i) { |
| const StructTable& entry = struct_table[i]; |
| FinalizePartialMap(Map::cast(Object(roots_table()[entry.index]))); |
| } |
| |
| { // Map allocation |
| #define ALLOCATE_MAP(instance_type, size, field_name) \ |
| { \ |
| Map map; \ |
| if (!AllocateMap((instance_type), size).To(&map)) return false; \ |
| set_##field_name##_map(map); \ |
| } |
| |
| #define ALLOCATE_VARSIZE_MAP(instance_type, field_name) \ |
| ALLOCATE_MAP(instance_type, kVariableSizeSentinel, field_name) |
| |
| #define ALLOCATE_PRIMITIVE_MAP(instance_type, size, field_name, \ |
| constructor_function_index) \ |
| { \ |
| ALLOCATE_MAP((instance_type), (size), field_name); \ |
| roots.field_name##_map().SetConstructorFunctionIndex( \ |
| (constructor_function_index)); \ |
| } |
| |
| ALLOCATE_VARSIZE_MAP(SCOPE_INFO_TYPE, scope_info) |
| ALLOCATE_VARSIZE_MAP(FIXED_ARRAY_TYPE, module_info) |
| ALLOCATE_VARSIZE_MAP(CLOSURE_FEEDBACK_CELL_ARRAY_TYPE, |
| closure_feedback_cell_array) |
| ALLOCATE_VARSIZE_MAP(FEEDBACK_VECTOR_TYPE, feedback_vector) |
| ALLOCATE_PRIMITIVE_MAP(HEAP_NUMBER_TYPE, HeapNumber::kSize, heap_number, |
| Context::NUMBER_FUNCTION_INDEX) |
| ALLOCATE_PRIMITIVE_MAP(SYMBOL_TYPE, Symbol::kSize, symbol, |
| Context::SYMBOL_FUNCTION_INDEX) |
| ALLOCATE_MAP(FOREIGN_TYPE, Foreign::kSize, foreign) |
| |
| ALLOCATE_PRIMITIVE_MAP(ODDBALL_TYPE, Oddball::kSize, boolean, |
| Context::BOOLEAN_FUNCTION_INDEX); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, uninitialized); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, arguments_marker); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, exception); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, termination_exception); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, optimized_out); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, stale_register); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, self_reference_marker); |
| ALLOCATE_MAP(ODDBALL_TYPE, Oddball::kSize, basic_block_counters_marker); |
| ALLOCATE_VARSIZE_MAP(BIGINT_TYPE, bigint); |
| |
| for (unsigned i = 0; i < arraysize(string_type_table); i++) { |
| const StringTypeTable& entry = string_type_table[i]; |
| Map map; |
| if (!AllocateMap(entry.type, entry.size).To(&map)) return false; |
| map.SetConstructorFunctionIndex(Context::STRING_FUNCTION_INDEX); |
| // Mark cons string maps as unstable, because their objects can change |
| // maps during GC. |
| if (StringShape(entry.type).IsCons()) map.mark_unstable(); |
| roots_table()[entry.index] = map.ptr(); |
| } |
| |
| ALLOCATE_VARSIZE_MAP(FIXED_DOUBLE_ARRAY_TYPE, fixed_double_array) |
| roots.fixed_double_array_map().set_elements_kind(HOLEY_DOUBLE_ELEMENTS); |
| ALLOCATE_VARSIZE_MAP(FEEDBACK_METADATA_TYPE, feedback_metadata) |
| ALLOCATE_VARSIZE_MAP(BYTE_ARRAY_TYPE, byte_array) |
| ALLOCATE_VARSIZE_MAP(BYTECODE_ARRAY_TYPE, bytecode_array) |
| ALLOCATE_VARSIZE_MAP(FREE_SPACE_TYPE, free_space) |
| ALLOCATE_VARSIZE_MAP(PROPERTY_ARRAY_TYPE, property_array) |
| ALLOCATE_VARSIZE_MAP(SMALL_ORDERED_HASH_MAP_TYPE, small_ordered_hash_map) |
| ALLOCATE_VARSIZE_MAP(SMALL_ORDERED_HASH_SET_TYPE, small_ordered_hash_set) |
| ALLOCATE_VARSIZE_MAP(SMALL_ORDERED_NAME_DICTIONARY_TYPE, |
| small_ordered_name_dictionary) |
| |
| #define TORQUE_ALLOCATE_MAP(NAME, Name, name) \ |
| ALLOCATE_MAP(NAME, Name::kSize, name) |
| TORQUE_DEFINED_FIXED_INSTANCE_TYPE_LIST(TORQUE_ALLOCATE_MAP); |
| #undef TORQUE_ALLOCATE_MAP |
| |
| #define TORQUE_ALLOCATE_VARSIZE_MAP(NAME, Name, name) \ |
| /* The DescriptorArray map is pre-allocated and initialized above. */ \ |
| if (NAME != DESCRIPTOR_ARRAY_TYPE) { \ |
| ALLOCATE_VARSIZE_MAP(NAME, name) \ |
| } |
| TORQUE_DEFINED_VARSIZE_INSTANCE_TYPE_LIST(TORQUE_ALLOCATE_VARSIZE_MAP); |
| #undef TORQUE_ALLOCATE_VARSIZE_MAP |
| |
| ALLOCATE_VARSIZE_MAP(CODE_TYPE, code) |
| |
| ALLOCATE_MAP(CELL_TYPE, Cell::kSize, cell); |
| { |
| // The invalid_prototype_validity_cell is needed for JSObject maps. |
| Smi value = Smi::FromInt(Map::kPrototypeChainInvalid); |
| AllocationResult alloc = AllocateRaw(Cell::kSize, AllocationType::kOld); |
| if (!alloc.To(&obj)) return false; |
| obj.set_map_after_allocation(roots.cell_map(), SKIP_WRITE_BARRIER); |
| Cell::cast(obj).set_value(value); |
| set_invalid_prototype_validity_cell(Cell::cast(obj)); |
| } |
| |
| ALLOCATE_MAP(PROPERTY_CELL_TYPE, PropertyCell::kSize, global_property_cell) |
| ALLOCATE_MAP(FILLER_TYPE, kTaggedSize, one_pointer_filler) |
| ALLOCATE_MAP(FILLER_TYPE, 2 * kTaggedSize, two_pointer_filler) |
| |
| // The "no closures" and "one closure" FeedbackCell maps need |
| // to be marked unstable because their objects can change maps. |
| ALLOCATE_MAP(FEEDBACK_CELL_TYPE, FeedbackCell::kAlignedSize, |
| no_closures_cell) |
| roots.no_closures_cell_map().mark_unstable(); |
| ALLOCATE_MAP(FEEDBACK_CELL_TYPE, FeedbackCell::kAlignedSize, |
| one_closure_cell) |
| roots.one_closure_cell_map().mark_unstable(); |
| ALLOCATE_MAP(FEEDBACK_CELL_TYPE, FeedbackCell::kAlignedSize, |
| many_closures_cell) |
| |
| ALLOCATE_VARSIZE_MAP(TRANSITION_ARRAY_TYPE, transition_array) |
| |
| ALLOCATE_VARSIZE_MAP(HASH_TABLE_TYPE, hash_table) |
| ALLOCATE_VARSIZE_MAP(ORDERED_HASH_MAP_TYPE, ordered_hash_map) |
| ALLOCATE_VARSIZE_MAP(ORDERED_HASH_SET_TYPE, ordered_hash_set) |
| ALLOCATE_VARSIZE_MAP(ORDERED_NAME_DICTIONARY_TYPE, ordered_name_dictionary) |
| ALLOCATE_VARSIZE_MAP(NAME_DICTIONARY_TYPE, name_dictionary) |
| ALLOCATE_VARSIZE_MAP(GLOBAL_DICTIONARY_TYPE, global_dictionary) |
| ALLOCATE_VARSIZE_MAP(NUMBER_DICTIONARY_TYPE, number_dictionary) |
| ALLOCATE_VARSIZE_MAP(SIMPLE_NUMBER_DICTIONARY_TYPE, |
| simple_number_dictionary) |
| |
| ALLOCATE_VARSIZE_MAP(EMBEDDER_DATA_ARRAY_TYPE, embedder_data_array) |
| ALLOCATE_VARSIZE_MAP(EPHEMERON_HASH_TABLE_TYPE, ephemeron_hash_table) |
| |
| ALLOCATE_VARSIZE_MAP(FIXED_ARRAY_TYPE, array_list) |
| |
| ALLOCATE_VARSIZE_MAP(SCRIPT_CONTEXT_TABLE_TYPE, script_context_table) |
| |
| ALLOCATE_VARSIZE_MAP(OBJECT_BOILERPLATE_DESCRIPTION_TYPE, |
| object_boilerplate_description) |
| |
| ALLOCATE_VARSIZE_MAP(COVERAGE_INFO_TYPE, coverage_info); |
| |
| ALLOCATE_MAP(CALL_HANDLER_INFO_TYPE, CallHandlerInfo::kSize, |
| side_effect_call_handler_info) |
| ALLOCATE_MAP(CALL_HANDLER_INFO_TYPE, CallHandlerInfo::kSize, |
| side_effect_free_call_handler_info) |
| ALLOCATE_MAP(CALL_HANDLER_INFO_TYPE, CallHandlerInfo::kSize, |
| next_call_side_effect_free_call_handler_info) |
| |
| ALLOCATE_VARSIZE_MAP(PREPARSE_DATA_TYPE, preparse_data) |
| ALLOCATE_MAP(UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_TYPE, |
| UncompiledDataWithoutPreparseData::kSize, |
| uncompiled_data_without_preparse_data) |
| ALLOCATE_MAP(UNCOMPILED_DATA_WITH_PREPARSE_DATA_TYPE, |
| UncompiledDataWithPreparseData::kSize, |
| uncompiled_data_with_preparse_data) |
| ALLOCATE_MAP(SHARED_FUNCTION_INFO_TYPE, SharedFunctionInfo::kAlignedSize, |
| shared_function_info) |
| ALLOCATE_MAP(SOURCE_TEXT_MODULE_TYPE, SourceTextModule::kSize, |
| source_text_module) |
| ALLOCATE_MAP(SYNTHETIC_MODULE_TYPE, SyntheticModule::kSize, |
| synthetic_module) |
| ALLOCATE_MAP(CODE_DATA_CONTAINER_TYPE, CodeDataContainer::kSize, |
| code_data_container) |
| |
| // The wasm_rttcanon_* maps are never used for real objects, only as |
| // sentinels. They are maps so that they fit in with their subtype maps |
| // (which are real maps). |
| ALLOCATE_MAP(WASM_STRUCT_TYPE, 0, wasm_rttcanon_eqref) |
| ALLOCATE_MAP(WASM_STRUCT_TYPE, 0, wasm_rttcanon_externref) |
| ALLOCATE_MAP(WASM_STRUCT_TYPE, 0, wasm_rttcanon_funcref) |
| ALLOCATE_MAP(WASM_STRUCT_TYPE, 0, wasm_rttcanon_i31ref) |
| ALLOCATE_MAP(WASM_TYPE_INFO_TYPE, WasmTypeInfo::kSize, wasm_type_info) |
| |
| ALLOCATE_MAP(WEAK_CELL_TYPE, WeakCell::kSize, weak_cell) |
| |
| ALLOCATE_MAP(JS_MESSAGE_OBJECT_TYPE, JSMessageObject::kHeaderSize, |
| message_object) |
| ALLOCATE_MAP(JS_OBJECT_TYPE, JSObject::kHeaderSize + kEmbedderDataSlotSize, |
| external) |
| external_map().set_is_extensible(false); |
| #undef ALLOCATE_PRIMITIVE_MAP |
| #undef ALLOCATE_VARSIZE_MAP |
| #undef ALLOCATE_MAP |
| } |
| |
| { |
| AllocationResult alloc = |
| AllocateRaw(FixedArray::SizeFor(0), AllocationType::kReadOnly); |
| if (!alloc.To(&obj)) return false; |
| obj.set_map_after_allocation(roots.scope_info_map(), SKIP_WRITE_BARRIER); |
| FixedArray::cast(obj).set_length(0); |
| } |
| set_empty_scope_info(ScopeInfo::cast(obj)); |
| |
| { |
| // Empty boilerplate needs a field for literal_flags |
| AllocationResult alloc = |
| AllocateRaw(FixedArray::SizeFor(1), AllocationType::kReadOnly); |
| if (!alloc.To(&obj)) return false; |
| obj.set_map_after_allocation(roots.object_boilerplate_description_map(), |
| SKIP_WRITE_BARRIER); |
| |
| FixedArray::cast(obj).set_length(1); |
| FixedArray::cast(obj).set(ObjectBoilerplateDescription::kLiteralTypeOffset, |
| Smi::zero()); |
| } |
| set_empty_object_boilerplate_description( |
| ObjectBoilerplateDescription::cast(obj)); |
| |
| { |
| // Empty array boilerplate description |
| AllocationResult alloc = Allocate(roots.array_boilerplate_description_map(), |
| AllocationType::kReadOnly); |
| if (!alloc.To(&obj)) return false; |
| |
| ArrayBoilerplateDescription::cast(obj).set_constant_elements( |
| roots.empty_fixed_array()); |
| ArrayBoilerplateDescription::cast(obj).set_elements_kind( |
| ElementsKind::PACKED_SMI_ELEMENTS); |
| } |
| set_empty_array_boilerplate_description( |
| ArrayBoilerplateDescription::cast(obj)); |
| |
| { |
| AllocationResult allocation = |
| Allocate(roots.boolean_map(), AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| } |
| set_true_value(Oddball::cast(obj)); |
| Oddball::cast(obj).set_kind(Oddball::kTrue); |
| |
| { |
| AllocationResult allocation = |
| Allocate(roots.boolean_map(), AllocationType::kReadOnly); |
| if (!allocation.To(&obj)) return false; |
| } |
| set_false_value(Oddball::cast(obj)); |
| Oddball::cast(obj).set_kind(Oddball::kFalse); |
| |
| // Empty arrays. |
| { |
| if (!AllocateRaw(ByteArray::SizeFor(0), AllocationType::kReadOnly).To(&obj)) |
| return false; |
| obj.set_map_after_allocation(roots.byte_array_map(), SKIP_WRITE_BARRIER); |
| ByteArray::cast(obj).set_length(0); |
| set_empty_byte_array(ByteArray::cast(obj)); |
| } |
| |
| { |
| if (!AllocateRaw(FixedArray::SizeFor(0), AllocationType::kReadOnly) |
| .To(&obj)) { |
| return false; |
| } |
| obj.set_map_after_allocation(roots.property_array_map(), |
| SKIP_WRITE_BARRIER); |
| PropertyArray::cast(obj).initialize_length(0); |
| set_empty_property_array(PropertyArray::cast(obj)); |
| } |
| |
| { |
| if (!AllocateRaw(FixedArray::SizeFor(0), AllocationType::kReadOnly) |
| .To(&obj)) { |
| return false; |
| } |
| obj.set_map_after_allocation(roots.closure_feedback_cell_array_map(), |
| SKIP_WRITE_BARRIER); |
| FixedArray::cast(obj).set_length(0); |
| set_empty_closure_feedback_cell_array(ClosureFeedbackCellArray::cast(obj)); |
| } |
| |
| // Set up the WasmTypeInfo objects for built-in generic Wasm RTTs. |
| #define ALLOCATE_TYPE_INFO(which) \ |
| { \ |
| int slot_count = ArrayList::kHeaderFields; \ |
| if (!AllocateRaw(ArrayList::SizeFor(slot_count), AllocationType::kOld) \ |
| .To(&obj)) { \ |
| return false; \ |
| } \ |
| obj.set_map_after_allocation(roots.array_list_map()); \ |
| ArrayList subtypes = ArrayList::cast(obj); \ |
| subtypes.set_length(slot_count); \ |
| subtypes.SetLength(0); \ |
| if (!AllocateRaw(WasmTypeInfo::kSize, AllocationType::kOld).To(&obj)) { \ |
| return false; \ |
| } \ |
| obj.set_map_after_allocation(roots.wasm_type_info_map(), \ |
| SKIP_WRITE_BARRIER); \ |
| WasmTypeInfo type_info = WasmTypeInfo::cast(obj); \ |
| type_info.set_subtypes(subtypes); \ |
| type_info.set_parent(roots.null_map()); \ |
| type_info.clear_foreign_address(isolate()); \ |
| wasm_rttcanon_##which##_map().set_wasm_type_info(type_info); \ |
| } |
| |
| ALLOCATE_TYPE_INFO(eqref) |
| ALLOCATE_TYPE_INFO(externref) |
| ALLOCATE_TYPE_INFO(funcref) |
| ALLOCATE_TYPE_INFO(i31ref) |
| #undef ALLOCATE_TYPE_INFO |
| |
| DCHECK(!InYoungGeneration(roots.empty_fixed_array())); |
| |
| roots.bigint_map().SetConstructorFunctionIndex( |
| Context::BIGINT_FUNCTION_INDEX); |
| |
| return true; |
| } |
| |
| void Heap::CreateApiObjects() { |
| Isolate* isolate = this->isolate(); |
| HandleScope scope(isolate); |
| |
| set_message_listeners(*TemplateList::New(isolate, 2)); |
| |
| Handle<InterceptorInfo> info = |
| Handle<InterceptorInfo>::cast(isolate->factory()->NewStruct( |
| INTERCEPTOR_INFO_TYPE, AllocationType::kReadOnly)); |
| info->set_flags(0); |
| set_noop_interceptor_info(*info); |
| } |
| |
| void Heap::CreateInitialObjects() { |
| HandleScope scope(isolate()); |
| Factory* factory = isolate()->factory(); |
| ReadOnlyRoots roots(this); |
| |
| // The -0 value must be set before NewNumber works. |
| set_minus_zero_value( |
| *factory->NewHeapNumber<AllocationType::kReadOnly>(-0.0)); |
| DCHECK(std::signbit(roots.minus_zero_value().Number())); |
| |
| set_nan_value(*factory->NewHeapNumber<AllocationType::kReadOnly>( |
| std::numeric_limits<double>::quiet_NaN())); |
| set_hole_nan_value(*factory->NewHeapNumberFromBits<AllocationType::kReadOnly>( |
| kHoleNanInt64)); |
| set_infinity_value( |
| *factory->NewHeapNumber<AllocationType::kReadOnly>(V8_INFINITY)); |
| set_minus_infinity_value( |
| *factory->NewHeapNumber<AllocationType::kReadOnly>(-V8_INFINITY)); |
| |
| set_hash_seed(*factory->NewByteArray(kInt64Size, AllocationType::kReadOnly)); |
| InitializeHashSeed(); |
| |
| // There's no "current microtask" in the beginning. |
| set_current_microtask(roots.undefined_value()); |
| |
| set_weak_refs_keep_during_job(roots.undefined_value()); |
| |
| // Allocate cache for single character one byte strings. |
| set_single_character_string_cache(*factory->NewFixedArray( |
| String::kMaxOneByteCharCode + 1, AllocationType::kOld)); |
| |
| for (unsigned i = 0; i < arraysize(constant_string_table); i++) { |
| Handle<String> str = |
| factory->InternalizeUtf8String(constant_string_table[i].contents); |
| roots_table()[constant_string_table[i].index] = str->ptr(); |
| } |
| |
| // Allocate |
| |
| // Finish initializing oddballs after creating the string table. |
| Oddball::Initialize(isolate(), factory->undefined_value(), "undefined", |
| factory->nan_value(), "undefined", Oddball::kUndefined); |
| |
| // Initialize the null_value. |
| Oddball::Initialize(isolate(), factory->null_value(), "null", |
| handle(Smi::zero(), isolate()), "object", Oddball::kNull); |
| |
| // Initialize the_hole_value. |
| Oddball::Initialize(isolate(), factory->the_hole_value(), "hole", |
| factory->hole_nan_value(), "undefined", |
| Oddball::kTheHole); |
| |
| // Initialize the true_value. |
| Oddball::Initialize(isolate(), factory->true_value(), "true", |
| handle(Smi::FromInt(1), isolate()), "boolean", |
| Oddball::kTrue); |
| |
| // Initialize the false_value. |
| Oddball::Initialize(isolate(), factory->false_value(), "false", |
| handle(Smi::zero(), isolate()), "boolean", |
| Oddball::kFalse); |
| |
| set_uninitialized_value( |
| *factory->NewOddball(factory->uninitialized_map(), "uninitialized", |
| handle(Smi::FromInt(-1), isolate()), "undefined", |
| Oddball::kUninitialized)); |
| |
| set_arguments_marker( |
| *factory->NewOddball(factory->arguments_marker_map(), "arguments_marker", |
| handle(Smi::FromInt(-4), isolate()), "undefined", |
| Oddball::kArgumentsMarker)); |
| |
| set_termination_exception(*factory->NewOddball( |
| factory->termination_exception_map(), "termination_exception", |
| handle(Smi::FromInt(-3), isolate()), "undefined", Oddball::kOther)); |
| |
| set_exception(*factory->NewOddball(factory->exception_map(), "exception", |
| handle(Smi::FromInt(-5), isolate()), |
| "undefined", Oddball::kException)); |
| |
| set_optimized_out(*factory->NewOddball(factory->optimized_out_map(), |
| "optimized_out", |
| handle(Smi::FromInt(-6), isolate()), |
| "undefined", Oddball::kOptimizedOut)); |
| |
| set_stale_register( |
| *factory->NewOddball(factory->stale_register_map(), "stale_register", |
| handle(Smi::FromInt(-7), isolate()), "undefined", |
| Oddball::kStaleRegister)); |
| |
| // Initialize marker objects used during compilation. |
| set_self_reference_marker(*factory->NewSelfReferenceMarker()); |
| set_basic_block_counters_marker(*factory->NewBasicBlockCountersMarker()); |
| |
| set_interpreter_entry_trampoline_for_profiling(roots.undefined_value()); |
| |
| { |
| HandleScope scope(isolate()); |
| #define SYMBOL_INIT(_, name) \ |
| { \ |
| Handle<Symbol> symbol( \ |
| isolate()->factory()->NewPrivateSymbol(AllocationType::kReadOnly)); \ |
| roots_table()[RootIndex::k##name] = symbol->ptr(); \ |
| } |
| PRIVATE_SYMBOL_LIST_GENERATOR(SYMBOL_INIT, /* not used */) |
| #undef SYMBOL_INIT |
| } |
| |
| { |
| HandleScope scope(isolate()); |
| #define SYMBOL_INIT(_, name, description) \ |
| Handle<Symbol> name = factory->NewSymbol(AllocationType::kReadOnly); \ |
| Handle<String> name##d = factory->InternalizeUtf8String(#description); \ |
| name->set_description(*name##d); \ |
| roots_table()[RootIndex::k##name] = name->ptr(); |
| PUBLIC_SYMBOL_LIST_GENERATOR(SYMBOL_INIT, /* not used */) |
| #undef SYMBOL_INIT |
| |
| #define SYMBOL_INIT(_, name, description) \ |
| Handle<Symbol> name = factory->NewSymbol(AllocationType::kReadOnly); \ |
| Handle<String> name##d = factory->InternalizeUtf8String(#description); \ |
| name->set_is_well_known_symbol(true); \ |
| name->set_description(*name##d); \ |
| roots_table()[RootIndex::k##name] = name->ptr(); |
| WELL_KNOWN_SYMBOL_LIST_GENERATOR(SYMBOL_INIT, /* not used */) |
| #undef SYMBOL_INIT |
| |
| // Mark "Interesting Symbols" appropriately. |
| to_string_tag_symbol->set_is_interesting_symbol(true); |
| } |
| |
| Handle<NameDictionary> empty_property_dictionary = NameDictionary::New( |
| isolate(), 1, AllocationType::kReadOnly, USE_CUSTOM_MINIMUM_CAPACITY); |
| DCHECK(!empty_property_dictionary->HasSufficientCapacityToAdd(1)); |
| set_empty_property_dictionary(*empty_property_dictionary); |
| |
| set_public_symbol_table(*empty_property_dictionary); |
| set_api_symbol_table(*empty_property_dictionary); |
| set_api_private_symbol_table(*empty_property_dictionary); |
| |
| set_number_string_cache(*factory->NewFixedArray( |
| kInitialNumberStringCacheSize * 2, AllocationType::kOld)); |
| |
| set_basic_block_profiling_data(ArrayList::cast(roots.empty_fixed_array())); |
| |
| // Allocate cache for string split and regexp-multiple. |
| set_string_split_cache(*factory->NewFixedArray( |
| RegExpResultsCache::kRegExpResultsCacheSize, AllocationType::kOld)); |
| set_regexp_multiple_cache(*factory->NewFixedArray( |
| RegExpResultsCache::kRegExpResultsCacheSize, AllocationType::kOld)); |
| |
| // Allocate FeedbackCell for builtins. |
| Handle<FeedbackCell> many_closures_cell = |
| factory->NewManyClosuresCell(factory->undefined_value()); |
| set_many_closures_cell(*many_closures_cell); |
| |
| set_detached_contexts(roots.empty_weak_array_list()); |
| set_retaining_path_targets(roots.empty_weak_array_list()); |
| |
| set_feedback_vectors_for_profiling_tools(roots.undefined_value()); |
| set_pending_optimize_for_test_bytecode(roots.undefined_value()); |
| set_shared_wasm_memories(roots.empty_weak_array_list()); |
| |
| set_script_list(roots.empty_weak_array_list()); |
| |
| Handle<NumberDictionary> slow_element_dictionary = NumberDictionary::New( |
| isolate(), 1, AllocationType::kReadOnly, USE_CUSTOM_MINIMUM_CAPACITY); |
| DCHECK(!slow_element_dictionary->HasSufficientCapacityToAdd(1)); |
| set_empty_slow_element_dictionary(*slow_element_dictionary); |
| |
| set_materialized_objects(*factory->NewFixedArray(0, AllocationType::kOld)); |
| |
| // Handling of script id generation is in Heap::NextScriptId(). |
| set_last_script_id(Smi::FromInt(v8::UnboundScript::kNoScriptId)); |
| set_last_debugging_id(Smi::FromInt(DebugInfo::kNoDebuggingId)); |
| set_next_template_serial_number(Smi::zero()); |
| |
| // Allocate the empty OrderedHashMap. |
| Handle<OrderedHashMap> empty_ordered_hash_map = |
| OrderedHashMap::AllocateEmpty(isolate(), AllocationType::kReadOnly) |
| .ToHandleChecked(); |
| set_empty_ordered_hash_map(*empty_ordered_hash_map); |
| |
| // Allocate the empty OrderedHashSet. |
| Handle<OrderedHashSet> empty_ordered_hash_set = |
| OrderedHashSet::AllocateEmpty(isolate(), AllocationType::kReadOnly) |
| .ToHandleChecked(); |
| set_empty_ordered_hash_set(*empty_ordered_hash_set); |
| |
| // Allocate the empty OrderedNameDictionary |
| Handle<OrderedNameDictionary> empty_ordered_property_dictionary = |
| OrderedNameDictionary::AllocateEmpty(isolate(), AllocationType::kReadOnly) |
| .ToHandleChecked(); |
| set_empty_ordered_property_dictionary(*empty_ordered_property_dictionary); |
| |
| // Allocate the empty FeedbackMetadata. |
| Handle<FeedbackMetadata> empty_feedback_metadata = |
| factory->NewFeedbackMetadata(0, 0, AllocationType::kReadOnly); |
| set_empty_feedback_metadata(*empty_feedback_metadata); |
| |
| // Canonical scope arrays. |
| Handle<ScopeInfo> global_this_binding = |
| ScopeInfo::CreateGlobalThisBinding(isolate()); |
| set_global_this_binding_scope_info(*global_this_binding); |
| |
| Handle<ScopeInfo> empty_function = |
| ScopeInfo::CreateForEmptyFunction(isolate()); |
| set_empty_function_scope_info(*empty_function); |
| |
| Handle<ScopeInfo> native_scope_info = |
| ScopeInfo::CreateForNativeContext(isolate()); |
| set_native_scope_info(*native_scope_info); |
| |
| // Allocate the empty script. |
| Handle<Script> script = factory->NewScript(factory->empty_string()); |
| script->set_type(Script::TYPE_NATIVE); |
| // This is used for exceptions thrown with no stack frames. Such exceptions |
| // can be shared everywhere. |
| script->set_origin_options(ScriptOriginOptions(true, false)); |
| set_empty_script(*script); |
| |
| { |
| Handle<PropertyCell> cell = factory->NewPropertyCell( |
| factory->empty_string(), AllocationType::kReadOnly); |
| cell->set_value(roots.the_hole_value()); |
| set_empty_property_cell(*cell); |
| } |
| |
| // Protectors |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_array_constructor_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_no_elements_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_array_iterator_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_map_iterator_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_set_iterator_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_is_concat_spreadable_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_array_species_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_typed_array_species_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_promise_species_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_regexp_species_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_string_iterator_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_string_length_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_array_buffer_detaching_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_promise_hook_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_promise_resolve_protector(*cell); |
| } |
| |
| { |
| Handle<PropertyCell> cell = |
| factory->NewPropertyCell(factory->empty_string()); |
| cell->set_value(Smi::FromInt(Protectors::kProtectorValid)); |
| set_promise_then_protector(*cell); |
| } |
| |
| set_serialized_objects(roots.empty_fixed_array()); |
| set_serialized_global_proxy_sizes(roots.empty_fixed_array()); |
| |
| /* Canonical off-heap trampoline data */ |
| set_off_heap_trampoline_relocation_info( |
| *Builtins::GenerateOffHeapTrampolineRelocInfo(isolate_)); |
| |
| set_trampoline_trivial_code_data_container( |
| *isolate()->factory()->NewCodeDataContainer(0, |
| AllocationType::kReadOnly)); |
| |
| set_trampoline_promise_rejection_code_data_container( |
| *isolate()->factory()->NewCodeDataContainer( |
| Code::IsPromiseRejectionField::encode(true), |
| AllocationType::kReadOnly)); |
| |
| // Evaluate the hash values which will then be cached in the strings. |
| isolate()->factory()->zero_string()->Hash(); |
| isolate()->factory()->one_string()->Hash(); |
| |
| // Initialize builtins constants table. |
| set_builtins_constants_table(roots.empty_fixed_array()); |
| |
| // Initialize descriptor cache. |
| isolate_->descriptor_lookup_cache()->Clear(); |
| |
| // Initialize compilation cache. |
| isolate_->compilation_cache()->Clear(); |
| |
| // Create internal SharedFunctionInfos. |
| |
| // Async functions: |
| { |
| Handle<SharedFunctionInfo> info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncFunctionAwaitRejectClosure, 1); |
| set_async_function_await_reject_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncFunctionAwaitResolveClosure, 1); |
| set_async_function_await_resolve_shared_fun(*info); |
| } |
| |
| // Async generators: |
| { |
| Handle<SharedFunctionInfo> info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncGeneratorAwaitResolveClosure, 1); |
| set_async_generator_await_resolve_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncGeneratorAwaitRejectClosure, 1); |
| set_async_generator_await_reject_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncGeneratorYieldResolveClosure, 1); |
| set_async_generator_yield_resolve_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncGeneratorReturnResolveClosure, 1); |
| set_async_generator_return_resolve_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncGeneratorReturnClosedResolveClosure, 1); |
| set_async_generator_return_closed_resolve_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate(), Builtins::kAsyncGeneratorReturnClosedRejectClosure, 1); |
| set_async_generator_return_closed_reject_shared_fun(*info); |
| } |
| |
| // AsyncIterator: |
| { |
| Handle<SharedFunctionInfo> info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kAsyncIteratorValueUnwrap, 1); |
| set_async_iterator_value_unwrap_shared_fun(*info); |
| } |
| |
| // Promises: |
| { |
| Handle<SharedFunctionInfo> info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kPromiseCapabilityDefaultResolve, 1, |
| FunctionKind::kConciseMethod); |
| info->set_native(true); |
| info->set_function_map_index( |
| Context::STRICT_FUNCTION_WITHOUT_PROTOTYPE_MAP_INDEX); |
| set_promise_capability_default_resolve_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo(isolate_, |
| Builtins::kPromiseCapabilityDefaultReject, |
| 1, FunctionKind::kConciseMethod); |
| info->set_native(true); |
| info->set_function_map_index( |
| Context::STRICT_FUNCTION_WITHOUT_PROTOTYPE_MAP_INDEX); |
| set_promise_capability_default_reject_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kPromiseGetCapabilitiesExecutor, 2); |
| set_promise_get_capabilities_executor_shared_fun(*info); |
| } |
| |
| // Promises / finally: |
| { |
| Handle<SharedFunctionInfo> info = |
| CreateSharedFunctionInfo(isolate(), Builtins::kPromiseThenFinally, 1); |
| info->set_native(true); |
| set_promise_then_finally_shared_fun(*info); |
| |
| info = |
| CreateSharedFunctionInfo(isolate(), Builtins::kPromiseCatchFinally, 1); |
| info->set_native(true); |
| set_promise_catch_finally_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo(isolate(), |
| Builtins::kPromiseValueThunkFinally, 0); |
| set_promise_value_thunk_finally_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo(isolate(), Builtins::kPromiseThrowerFinally, |
| 0); |
| set_promise_thrower_finally_shared_fun(*info); |
| } |
| |
| // Promise combinators: |
| { |
| Handle<SharedFunctionInfo> info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kPromiseAllResolveElementClosure, 1); |
| set_promise_all_resolve_element_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kPromiseAllSettledResolveElementClosure, 1); |
| set_promise_all_settled_resolve_element_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kPromiseAllSettledRejectElementClosure, 1); |
| set_promise_all_settled_reject_element_shared_fun(*info); |
| |
| info = CreateSharedFunctionInfo( |
| isolate_, Builtins::kPromiseAnyRejectElementClosure, 1); |
| set_promise_any_reject_element_shared_fun(*info); |
| } |
| |
| // ProxyRevoke: |
| { |
| Handle<SharedFunctionInfo> info = |
| CreateSharedFunctionInfo(isolate_, Builtins::kProxyRevoke, 0); |
| set_proxy_revoke_shared_fun(*info); |
| } |
| } |
| |
| void Heap::CreateInternalAccessorInfoObjects() { |
| Isolate* isolate = this->isolate(); |
| HandleScope scope(isolate); |
| Handle<AccessorInfo> accessor_info; |
| |
| #define INIT_ACCESSOR_INFO(_, accessor_name, AccessorName, ...) \ |
| accessor_info = Accessors::Make##AccessorName##Info(isolate); \ |
| roots_table()[RootIndex::k##AccessorName##Accessor] = accessor_info->ptr(); |
| ACCESSOR_INFO_LIST_GENERATOR(INIT_ACCESSOR_INFO, /* not used */) |
| #undef INIT_ACCESSOR_INFO |
| |
| #define INIT_SIDE_EFFECT_FLAG(_, accessor_name, AccessorName, GetterType, \ |
| SetterType) \ |
| AccessorInfo::cast( \ |
| Object(roots_table()[RootIndex::k##AccessorName##Accessor])) \ |
| .set_getter_side_effect_type(SideEffectType::GetterType); \ |
| AccessorInfo::cast( \ |
| Object(roots_table()[RootIndex::k##AccessorName##Accessor])) \ |
| .set_setter_side_effect_type(SideEffectType::SetterType); |
| ACCESSOR_INFO_LIST_GENERATOR(INIT_SIDE_EFFECT_FLAG, /* not used */) |
| #undef INIT_SIDE_EFFECT_FLAG |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
