// 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. #ifndef V8_INTERPRETER_BYTECODE_FLAGS_H_ #define V8_INTERPRETER_BYTECODE_FLAGS_H_ #include "src/utils/utils.h" namespace v8 { namespace internal { // Forward declarations. class Literal; class AstStringConstants; namespace interpreter { class CreateArrayLiteralFlags { public: using FlagsBits = BitField8<int, 0, 5>; using FastCloneSupportedBit = FlagsBits::Next<bool, 1>; static uint8_t Encode(bool use_fast_shallow_clone, int runtime_flags); private: DISALLOW_IMPLICIT_CONSTRUCTORS(CreateArrayLiteralFlags); }; class CreateObjectLiteralFlags { public: using FlagsBits = BitField8<int, 0, 5>; using FastCloneSupportedBit = FlagsBits::Next<bool, 1>; static uint8_t Encode(int runtime_flags, bool fast_clone_supported); private: DISALLOW_IMPLICIT_CONSTRUCTORS(CreateObjectLiteralFlags); }; class CreateClosureFlags { public: using PretenuredBit = BitField8<bool, 0, 1>; using FastNewClosureBit = PretenuredBit::Next<bool, 1>; static uint8_t Encode(bool pretenure, bool is_function_scope, bool might_always_opt); private: DISALLOW_IMPLICIT_CONSTRUCTORS(CreateClosureFlags); }; #define TYPEOF_LITERAL_LIST(V) \ V(Number, number) \ V(String, string) \ V(Symbol, symbol) \ V(Boolean, boolean) \ V(BigInt, bigint) \ V(Undefined, undefined) \ V(Function, function) \ V(Object, object) \ V(Other, other) class TestTypeOfFlags { public: enum class LiteralFlag : uint8_t { #define DECLARE_LITERAL_FLAG(name, _) k##name, TYPEOF_LITERAL_LIST(DECLARE_LITERAL_FLAG) #undef DECLARE_LITERAL_FLAG }; static LiteralFlag GetFlagForLiteral(const AstStringConstants* ast_constants, Literal* literal); static uint8_t Encode(LiteralFlag literal_flag); static LiteralFlag Decode(uint8_t raw_flag); private: DISALLOW_IMPLICIT_CONSTRUCTORS(TestTypeOfFlags); }; class StoreLookupSlotFlags { public: using LanguageModeBit = BitField8<LanguageMode, 0, 1>; using LookupHoistingModeBit = LanguageModeBit::Next<bool, 1>; STATIC_ASSERT(LanguageModeSize <= LanguageModeBit::kNumValues); static uint8_t Encode(LanguageMode language_mode, LookupHoistingMode lookup_hoisting_mode); private: DISALLOW_IMPLICIT_CONSTRUCTORS(StoreLookupSlotFlags); }; } // namespace interpreter } // namespace internal } // namespace v8 #endif // V8_INTERPRETER_BYTECODE_FLAGS_H_