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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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151 && HeapObject::cast(this)->map()->instance_type() == HEAP_NUMBER_TYPE; | 151 && HeapObject::cast(this)->map()->instance_type() == HEAP_NUMBER_TYPE; |
152 } | 152 } |
153 | 153 |
154 | 154 |
155 bool Object::IsString() { | 155 bool Object::IsString() { |
156 return Object::IsHeapObject() | 156 return Object::IsHeapObject() |
157 && HeapObject::cast(this)->map()->instance_type() < FIRST_NONSTRING_TYPE; | 157 && HeapObject::cast(this)->map()->instance_type() < FIRST_NONSTRING_TYPE; |
158 } | 158 } |
159 | 159 |
160 | 160 |
| 161 bool Object::IsSpecObject() { |
| 162 return Object::IsHeapObject() |
| 163 && HeapObject::cast(this)->map()->instance_type() >= FIRST_SPEC_OBJECT_TYPE; |
| 164 } |
| 165 |
| 166 |
161 bool Object::IsSymbol() { | 167 bool Object::IsSymbol() { |
162 if (!this->IsHeapObject()) return false; | 168 if (!this->IsHeapObject()) return false; |
163 uint32_t type = HeapObject::cast(this)->map()->instance_type(); | 169 uint32_t type = HeapObject::cast(this)->map()->instance_type(); |
164 // Because the symbol tag is non-zero and no non-string types have the | 170 // Because the symbol tag is non-zero and no non-string types have the |
165 // symbol bit set we can test for symbols with a very simple test | 171 // symbol bit set we can test for symbols with a very simple test |
166 // operation. | 172 // operation. |
167 ASSERT(kSymbolTag != 0); | 173 ASSERT(kSymbolTag != 0); |
168 ASSERT(kNotStringTag + kIsSymbolMask > LAST_TYPE); | 174 ASSERT(kNotStringTag + kIsSymbolMask > LAST_TYPE); |
169 return (type & kIsSymbolMask) != 0; | 175 return (type & kIsSymbolMask) != 0; |
170 } | 176 } |
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2750 int Code::arguments_count() { | 2756 int Code::arguments_count() { |
2751 ASSERT(is_call_stub() || is_keyed_call_stub() || kind() == STUB); | 2757 ASSERT(is_call_stub() || is_keyed_call_stub() || kind() == STUB); |
2752 return ExtractArgumentsCountFromFlags(flags()); | 2758 return ExtractArgumentsCountFromFlags(flags()); |
2753 } | 2759 } |
2754 | 2760 |
2755 | 2761 |
2756 int Code::major_key() { | 2762 int Code::major_key() { |
2757 ASSERT(kind() == STUB || | 2763 ASSERT(kind() == STUB || |
2758 kind() == UNARY_OP_IC || | 2764 kind() == UNARY_OP_IC || |
2759 kind() == BINARY_OP_IC || | 2765 kind() == BINARY_OP_IC || |
2760 kind() == COMPARE_IC); | 2766 kind() == COMPARE_IC || |
| 2767 kind() == TO_BOOLEAN_IC); |
2761 return READ_BYTE_FIELD(this, kStubMajorKeyOffset); | 2768 return READ_BYTE_FIELD(this, kStubMajorKeyOffset); |
2762 } | 2769 } |
2763 | 2770 |
2764 | 2771 |
2765 void Code::set_major_key(int major) { | 2772 void Code::set_major_key(int major) { |
2766 ASSERT(kind() == STUB || | 2773 ASSERT(kind() == STUB || |
2767 kind() == UNARY_OP_IC || | 2774 kind() == UNARY_OP_IC || |
2768 kind() == BINARY_OP_IC || | 2775 kind() == BINARY_OP_IC || |
2769 kind() == COMPARE_IC); | 2776 kind() == COMPARE_IC || |
| 2777 kind() == TO_BOOLEAN_IC); |
2770 ASSERT(0 <= major && major < 256); | 2778 ASSERT(0 <= major && major < 256); |
2771 WRITE_BYTE_FIELD(this, kStubMajorKeyOffset, major); | 2779 WRITE_BYTE_FIELD(this, kStubMajorKeyOffset, major); |
2772 } | 2780 } |
2773 | 2781 |
2774 | 2782 |
2775 bool Code::optimizable() { | 2783 bool Code::optimizable() { |
2776 ASSERT(kind() == FUNCTION); | 2784 ASSERT(kind() == FUNCTION); |
2777 return READ_BYTE_FIELD(this, kOptimizableOffset) == 1; | 2785 return READ_BYTE_FIELD(this, kOptimizableOffset) == 1; |
2778 } | 2786 } |
2779 | 2787 |
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2901 return READ_BYTE_FIELD(this, kCompareStateOffset); | 2909 return READ_BYTE_FIELD(this, kCompareStateOffset); |
2902 } | 2910 } |
2903 | 2911 |
2904 | 2912 |
2905 void Code::set_compare_state(byte value) { | 2913 void Code::set_compare_state(byte value) { |
2906 ASSERT(is_compare_ic_stub()); | 2914 ASSERT(is_compare_ic_stub()); |
2907 WRITE_BYTE_FIELD(this, kCompareStateOffset, value); | 2915 WRITE_BYTE_FIELD(this, kCompareStateOffset, value); |
2908 } | 2916 } |
2909 | 2917 |
2910 | 2918 |
| 2919 byte Code::to_boolean_state() { |
| 2920 ASSERT(is_to_boolean_ic_stub()); |
| 2921 return READ_BYTE_FIELD(this, kToBooleanTypeOffset); |
| 2922 } |
| 2923 |
| 2924 |
| 2925 void Code::set_to_boolean_state(byte value) { |
| 2926 ASSERT(is_to_boolean_ic_stub()); |
| 2927 WRITE_BYTE_FIELD(this, kToBooleanTypeOffset, value); |
| 2928 } |
| 2929 |
2911 bool Code::is_inline_cache_stub() { | 2930 bool Code::is_inline_cache_stub() { |
2912 Kind kind = this->kind(); | 2931 Kind kind = this->kind(); |
2913 return kind >= FIRST_IC_KIND && kind <= LAST_IC_KIND; | 2932 return kind >= FIRST_IC_KIND && kind <= LAST_IC_KIND; |
2914 } | 2933 } |
2915 | 2934 |
2916 | 2935 |
2917 Code::Flags Code::ComputeFlags(Kind kind, | 2936 Code::Flags Code::ComputeFlags(Kind kind, |
2918 InLoopFlag in_loop, | 2937 InLoopFlag in_loop, |
2919 InlineCacheState ic_state, | 2938 InlineCacheState ic_state, |
2920 ExtraICState extra_ic_state, | 2939 ExtraICState extra_ic_state, |
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4481 #undef WRITE_INT_FIELD | 4500 #undef WRITE_INT_FIELD |
4482 #undef READ_SHORT_FIELD | 4501 #undef READ_SHORT_FIELD |
4483 #undef WRITE_SHORT_FIELD | 4502 #undef WRITE_SHORT_FIELD |
4484 #undef READ_BYTE_FIELD | 4503 #undef READ_BYTE_FIELD |
4485 #undef WRITE_BYTE_FIELD | 4504 #undef WRITE_BYTE_FIELD |
4486 | 4505 |
4487 | 4506 |
4488 } } // namespace v8::internal | 4507 } } // namespace v8::internal |
4489 | 4508 |
4490 #endif // V8_OBJECTS_INL_H_ | 4509 #endif // V8_OBJECTS_INL_H_ |
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