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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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919 class Types { | 919 class Types { |
920 public: | 920 public: |
921 Types() {} | 921 Types() {} |
922 explicit Types(byte bits) : set_(bits) {} | 922 explicit Types(byte bits) : set_(bits) {} |
923 | 923 |
924 bool IsEmpty() const { return set_.IsEmpty(); } | 924 bool IsEmpty() const { return set_.IsEmpty(); } |
925 bool IsAll() const { return ToByte() == ((1 << NUMBER_OF_TYPES) - 1); } | 925 bool IsAll() const { return ToByte() == ((1 << NUMBER_OF_TYPES) - 1); } |
926 bool Contains(Type type) const { return set_.Contains(type); } | 926 bool Contains(Type type) const { return set_.Contains(type); } |
927 void Add(Type type) { set_.Add(type); } | 927 void Add(Type type) { set_.Add(type); } |
928 byte ToByte() const { return set_.ToIntegral(); } | 928 byte ToByte() const { return set_.ToIntegral(); } |
929 void Print(StringStream* stream); | 929 void Print(StringStream* stream) const; |
930 void TraceTransition(Types to); | 930 void TraceTransition(Types to) const; |
931 bool Record(Handle<Object> object); | 931 bool Record(Handle<Object> object); |
| 932 bool NeedsMap() const; |
932 | 933 |
933 private: | 934 private: |
934 EnumSet<Type, byte> set_; | 935 EnumSet<Type, byte> set_; |
935 }; | 936 }; |
936 | 937 |
937 static Types no_types() { return Types(); } | 938 static Types no_types() { return Types(); } |
938 static Types all_types() { return Types((1 << NUMBER_OF_TYPES) - 1); } | 939 static Types all_types() { return Types((1 << NUMBER_OF_TYPES) - 1); } |
939 | 940 |
940 explicit ToBooleanStub(Register tos, Types types = Types()) | 941 explicit ToBooleanStub(Register tos, Types types = Types()) |
941 : tos_(tos), types_(types) { } | 942 : tos_(tos), types_(types) { } |
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959 Label* patch); | 960 Label* patch); |
960 void GenerateTypeTransition(MacroAssembler* masm); | 961 void GenerateTypeTransition(MacroAssembler* masm); |
961 | 962 |
962 Register tos_; | 963 Register tos_; |
963 Types types_; | 964 Types types_; |
964 }; | 965 }; |
965 | 966 |
966 } } // namespace v8::internal | 967 } } // namespace v8::internal |
967 | 968 |
968 #endif // V8_CODE_STUBS_H_ | 969 #endif // V8_CODE_STUBS_H_ |
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