| // Copyright 2016 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/parsing/parse-info.h" |
| |
| #include "src/ast/ast-value-factory.h" |
| #include "src/ast/ast.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| ParseInfo::ParseInfo(Zone* zone) |
| : zone_(zone), |
| flags_(0), |
| source_stream_(nullptr), |
| source_stream_encoding_(ScriptCompiler::StreamedSource::ONE_BYTE), |
| character_stream_(nullptr), |
| extension_(nullptr), |
| compile_options_(ScriptCompiler::kNoCompileOptions), |
| script_scope_(nullptr), |
| unicode_cache_(nullptr), |
| stack_limit_(0), |
| hash_seed_(0), |
| compiler_hints_(0), |
| start_position_(0), |
| end_position_(0), |
| isolate_(nullptr), |
| cached_data_(nullptr), |
| ast_value_factory_(nullptr), |
| function_name_(nullptr), |
| literal_(nullptr) {} |
| |
| ParseInfo::ParseInfo(Zone* zone, Handle<JSFunction> function) |
| : ParseInfo(zone, Handle<SharedFunctionInfo>(function->shared())) { |
| if (!function->context()->IsNativeContext()) { |
| set_outer_scope_info(handle(function->context()->scope_info())); |
| } |
| } |
| |
| ParseInfo::ParseInfo(Zone* zone, Handle<SharedFunctionInfo> shared) |
| : ParseInfo(zone) { |
| isolate_ = shared->GetIsolate(); |
| |
| set_lazy(); |
| set_hash_seed(isolate_->heap()->HashSeed()); |
| set_is_named_expression(shared->is_named_expression()); |
| set_calls_eval(shared->scope_info()->CallsEval()); |
| set_compiler_hints(shared->compiler_hints()); |
| set_start_position(shared->start_position()); |
| set_end_position(shared->end_position()); |
| set_stack_limit(isolate_->stack_guard()->real_climit()); |
| set_unicode_cache(isolate_->unicode_cache()); |
| set_language_mode(shared->language_mode()); |
| set_shared_info(shared); |
| |
| Handle<Script> script(Script::cast(shared->script())); |
| set_script(script); |
| if (!script.is_null() && script->type() == Script::TYPE_NATIVE) { |
| set_native(); |
| } |
| } |
| |
| ParseInfo::ParseInfo(Zone* zone, Handle<Script> script) : ParseInfo(zone) { |
| isolate_ = script->GetIsolate(); |
| |
| set_hash_seed(isolate_->heap()->HashSeed()); |
| set_stack_limit(isolate_->stack_guard()->real_climit()); |
| set_unicode_cache(isolate_->unicode_cache()); |
| set_script(script); |
| |
| if (script->type() == Script::TYPE_NATIVE) { |
| set_native(); |
| } |
| } |
| |
| ParseInfo::~ParseInfo() { |
| if (ast_value_factory_owned()) { |
| delete ast_value_factory_; |
| set_ast_value_factory_owned(false); |
| } |
| ast_value_factory_ = nullptr; |
| } |
| |
| DeclarationScope* ParseInfo::scope() const { return literal()->scope(); } |
| |
| bool ParseInfo::is_declaration() const { |
| return (compiler_hints_ & (1 << SharedFunctionInfo::kIsDeclaration)) != 0; |
| } |
| |
| bool ParseInfo::is_arrow() const { |
| return (compiler_hints_ & (1 << SharedFunctionInfo::kIsArrow)) != 0; |
| } |
| |
| bool ParseInfo::is_async() const { |
| return (compiler_hints_ & (1 << SharedFunctionInfo::kIsAsyncFunction)) != 0; |
| } |
| |
| bool ParseInfo::is_default_constructor() const { |
| return (compiler_hints_ & (1 << SharedFunctionInfo::kIsDefaultConstructor)) != |
| 0; |
| } |
| |
| bool ParseInfo::requires_class_field_init() const { |
| return (compiler_hints_ & |
| (1 << SharedFunctionInfo::kRequiresClassFieldInit)) != 0; |
| } |
| bool ParseInfo::is_class_field_initializer() const { |
| return (compiler_hints_ & |
| (1 << SharedFunctionInfo::kIsClassFieldInitializer)) != 0; |
| } |
| |
| FunctionKind ParseInfo::function_kind() const { |
| return SharedFunctionInfo::FunctionKindBits::decode(compiler_hints_); |
| } |
| |
| #ifdef DEBUG |
| bool ParseInfo::script_is_native() const { |
| return script_->type() == Script::TYPE_NATIVE; |
| } |
| #endif // DEBUG |
| |
| } // namespace internal |
| } // namespace v8 |