| // Copyright 2015 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. |
| |
| #ifndef V8_CONTEXTS_INL_H_ |
| #define V8_CONTEXTS_INL_H_ |
| |
| #include "src/contexts.h" |
| #include "src/objects-inl.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| // static |
| ScriptContextTable* ScriptContextTable::cast(Object* context) { |
| DCHECK(context->IsScriptContextTable()); |
| return reinterpret_cast<ScriptContextTable*>(context); |
| } |
| |
| |
| int ScriptContextTable::used() const { |
| return Smi::cast(get(kUsedSlot))->value(); |
| } |
| |
| |
| void ScriptContextTable::set_used(int used) { |
| set(kUsedSlot, Smi::FromInt(used)); |
| } |
| |
| |
| // static |
| Handle<Context> ScriptContextTable::GetContext(Handle<ScriptContextTable> table, |
| int i) { |
| DCHECK(i < table->used()); |
| return Handle<Context>::cast( |
| FixedArray::get(*table, i + kFirstContextSlot, table->GetIsolate())); |
| } |
| |
| |
| // static |
| Context* Context::cast(Object* context) { |
| DCHECK(context->IsContext()); |
| return reinterpret_cast<Context*>(context); |
| } |
| |
| |
| JSFunction* Context::closure() { return JSFunction::cast(get(CLOSURE_INDEX)); } |
| void Context::set_closure(JSFunction* closure) { set(CLOSURE_INDEX, closure); } |
| |
| |
| Context* Context::previous() { |
| Object* result = get(PREVIOUS_INDEX); |
| DCHECK(IsBootstrappingOrValidParentContext(result, this)); |
| return reinterpret_cast<Context*>(result); |
| } |
| void Context::set_previous(Context* context) { set(PREVIOUS_INDEX, context); } |
| |
| Object* Context::next_context_link() { return get(Context::NEXT_CONTEXT_LINK); } |
| |
| bool Context::has_extension() { return !extension()->IsTheHole(GetIsolate()); } |
| HeapObject* Context::extension() { |
| return HeapObject::cast(get(EXTENSION_INDEX)); |
| } |
| void Context::set_extension(HeapObject* object) { |
| set(EXTENSION_INDEX, object); |
| } |
| |
| |
| JSModule* Context::module() { return JSModule::cast(get(EXTENSION_INDEX)); } |
| void Context::set_module(JSModule* module) { set(EXTENSION_INDEX, module); } |
| |
| |
| Context* Context::native_context() { |
| Object* result = get(NATIVE_CONTEXT_INDEX); |
| DCHECK(IsBootstrappingOrNativeContext(this->GetIsolate(), result)); |
| return reinterpret_cast<Context*>(result); |
| } |
| |
| |
| void Context::set_native_context(Context* context) { |
| set(NATIVE_CONTEXT_INDEX, context); |
| } |
| |
| |
| bool Context::IsNativeContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->native_context_map(); |
| } |
| |
| |
| bool Context::IsFunctionContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->function_context_map(); |
| } |
| |
| |
| bool Context::IsCatchContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->catch_context_map(); |
| } |
| |
| |
| bool Context::IsWithContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->with_context_map(); |
| } |
| |
| bool Context::IsDebugEvaluateContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->debug_evaluate_context_map(); |
| } |
| |
| bool Context::IsBlockContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->block_context_map(); |
| } |
| |
| |
| bool Context::IsModuleContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->module_context_map(); |
| } |
| |
| |
| bool Context::IsScriptContext() { |
| Map* map = this->map(); |
| return map == map->GetHeap()->script_context_map(); |
| } |
| |
| |
| bool Context::HasSameSecurityTokenAs(Context* that) { |
| return this->native_context()->security_token() == |
| that->native_context()->security_token(); |
| } |
| |
| |
| #define NATIVE_CONTEXT_FIELD_ACCESSORS(index, type, name) \ |
| void Context::set_##name(type* value) { \ |
| DCHECK(IsNativeContext()); \ |
| set(index, value); \ |
| } \ |
| bool Context::is_##name(type* value) { \ |
| DCHECK(IsNativeContext()); \ |
| return type::cast(get(index)) == value; \ |
| } \ |
| type* Context::name() { \ |
| DCHECK(IsNativeContext()); \ |
| return type::cast(get(index)); \ |
| } |
| NATIVE_CONTEXT_FIELDS(NATIVE_CONTEXT_FIELD_ACCESSORS) |
| #undef NATIVE_CONTEXT_FIELD_ACCESSORS |
| |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_CONTEXTS_INL_H_ |