1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_INTERPRETER_BYTECODE_FLAGS_H_ 6 #define V8_INTERPRETER_BYTECODE_FLAGS_H_ 7 8 #include "src/utils.h" 9 10 namespace v8 { 11 namespace internal { 12 namespace interpreter { 13 14 class CreateArrayLiteralFlags { 15 public: 16 class FlagsBits : public BitField8<int, 0, 3> {}; 17 class FastShallowCloneBit : public BitField8<bool, FlagsBits::kNext, 1> {}; 18 19 static uint8_t Encode(bool use_fast_shallow_clone, int runtime_flags); 20 21 private: 22 DISALLOW_IMPLICIT_CONSTRUCTORS(CreateArrayLiteralFlags); 23 }; 24 25 class CreateObjectLiteralFlags { 26 public: 27 class FlagsBits : public BitField8<int, 0, 3> {}; 28 class FastClonePropertiesCountBits 29 : public BitField8<int, FlagsBits::kNext, 3> {}; 30 31 static uint8_t Encode(bool fast_clone_supported, int properties_count, 32 int runtime_flags); 33 34 private: 35 DISALLOW_IMPLICIT_CONSTRUCTORS(CreateObjectLiteralFlags); 36 }; 37 38 class CreateClosureFlags { 39 public: 40 class PretenuredBit : public BitField8<bool, 0, 1> {}; 41 class FastNewClosureBit : public BitField8<bool, PretenuredBit::kNext, 1> {}; 42 43 static uint8_t Encode(bool pretenure, bool is_function_scope); 44 45 private: 46 DISALLOW_IMPLICIT_CONSTRUCTORS(CreateClosureFlags); 47 }; 48 49 } // namespace interpreter 50 } // namespace internal 51 } // namespace v8 52 53 #endif // V8_INTERPRETER_BYTECODE_FLAGS_H_ 54
