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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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3273 void SharedFunctionInfoVerify(); | 3273 void SharedFunctionInfoVerify(); |
3274 #endif | 3274 #endif |
3275 | 3275 |
3276 // Casting. | 3276 // Casting. |
3277 static inline SharedFunctionInfo* cast(Object* obj); | 3277 static inline SharedFunctionInfo* cast(Object* obj); |
3278 | 3278 |
3279 // Constants. | 3279 // Constants. |
3280 static const int kDontAdaptArgumentsSentinel = -1; | 3280 static const int kDontAdaptArgumentsSentinel = -1; |
3281 | 3281 |
3282 // Layout description. | 3282 // Layout description. |
3283 // (An even number of integers has a size that is a multiple of a pointer.) | 3283 // Pointer fields. |
3284 static const int kNameOffset = HeapObject::kHeaderSize; | 3284 static const int kNameOffset = HeapObject::kHeaderSize; |
3285 static const int kCodeOffset = kNameOffset + kPointerSize; | 3285 static const int kCodeOffset = kNameOffset + kPointerSize; |
3286 static const int kConstructStubOffset = kCodeOffset + kPointerSize; | 3286 static const int kConstructStubOffset = kCodeOffset + kPointerSize; |
3287 static const int kLengthOffset = kConstructStubOffset + kPointerSize; | 3287 static const int kInstanceClassNameOffset = |
| 3288 kConstructStubOffset + kPointerSize; |
| 3289 static const int kExternalReferenceDataOffset = |
| 3290 kInstanceClassNameOffset + kPointerSize; |
| 3291 static const int kScriptOffset = kExternalReferenceDataOffset + kPointerSize; |
| 3292 static const int kDebugInfoOffset = kScriptOffset + kPointerSize; |
| 3293 static const int kInferredNameOffset = kDebugInfoOffset + kPointerSize; |
| 3294 static const int kThisPropertyAssignmentsOffset = |
| 3295 kInferredNameOffset + kPointerSize; |
| 3296 // Integer fields. |
| 3297 static const int kLengthOffset = |
| 3298 kThisPropertyAssignmentsOffset + kPointerSize; |
3288 static const int kFormalParameterCountOffset = kLengthOffset + kIntSize; | 3299 static const int kFormalParameterCountOffset = kLengthOffset + kIntSize; |
3289 static const int kExpectedNofPropertiesOffset = | 3300 static const int kExpectedNofPropertiesOffset = |
3290 kFormalParameterCountOffset + kIntSize; | 3301 kFormalParameterCountOffset + kIntSize; |
3291 static const int kStartPositionAndTypeOffset = | 3302 static const int kStartPositionAndTypeOffset = |
3292 kExpectedNofPropertiesOffset + kIntSize; | 3303 kExpectedNofPropertiesOffset + kIntSize; |
3293 static const int kEndPositionOffset = kStartPositionAndTypeOffset + kIntSize; | 3304 static const int kEndPositionOffset = kStartPositionAndTypeOffset + kIntSize; |
3294 static const int kFunctionTokenPositionOffset = kEndPositionOffset + kIntSize; | 3305 static const int kFunctionTokenPositionOffset = kEndPositionOffset + kIntSize; |
3295 static const int kInstanceClassNameOffset = | 3306 static const int kCompilerHintsOffset = |
3296 kFunctionTokenPositionOffset + kIntSize; | 3307 kFunctionTokenPositionOffset + kIntSize; |
3297 static const int kExternalReferenceDataOffset = | |
3298 kInstanceClassNameOffset + kPointerSize; | |
3299 static const int kScriptOffset = kExternalReferenceDataOffset + kPointerSize; | |
3300 static const int kDebugInfoOffset = kScriptOffset + kPointerSize; | |
3301 static const int kInferredNameOffset = kDebugInfoOffset + kPointerSize; | |
3302 static const int kCompilerHintsOffset = kInferredNameOffset + kPointerSize; | |
3303 static const int kThisPropertyAssignmentsOffset = | |
3304 kCompilerHintsOffset + kPointerSize; | |
3305 static const int kThisPropertyAssignmentsCountOffset = | 3308 static const int kThisPropertyAssignmentsCountOffset = |
3306 kThisPropertyAssignmentsOffset + kPointerSize; | 3309 kCompilerHintsOffset + kIntSize; |
3307 static const int kSize = kThisPropertyAssignmentsCountOffset + kPointerSize; | 3310 // Total size. |
| 3311 static const int kSize = kThisPropertyAssignmentsCountOffset + kIntSize; |
3308 | 3312 |
3309 private: | 3313 private: |
3310 // Bit positions in length_and_flg. | |
3311 // The least significant bit is used as the flag. | |
3312 static const int kFlagBit = 0; | |
3313 static const int kLengthShift = 1; | |
3314 static const int kLengthMask = ~((1 << kLengthShift) - 1); | |
3315 | |
3316 // Bit positions in start_position_and_type. | 3314 // Bit positions in start_position_and_type. |
3317 // The source code start position is in the 30 most significant bits of | 3315 // The source code start position is in the 30 most significant bits of |
3318 // the start_position_and_type field. | 3316 // the start_position_and_type field. |
3319 static const int kIsExpressionBit = 0; | 3317 static const int kIsExpressionBit = 0; |
3320 static const int kIsTopLevelBit = 1; | 3318 static const int kIsTopLevelBit = 1; |
3321 static const int kStartPositionShift = 2; | 3319 static const int kStartPositionShift = 2; |
3322 static const int kStartPositionMask = ~((1 << kStartPositionShift) - 1); | 3320 static const int kStartPositionMask = ~((1 << kStartPositionShift) - 1); |
3323 | 3321 |
3324 // Bit positions in compiler_hints. | 3322 // Bit positions in compiler_hints. |
3325 static const int kHasOnlySimpleThisPropertyAssignments = 0; | 3323 static const int kHasOnlySimpleThisPropertyAssignments = 0; |
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4981 } else { | 4979 } else { |
4982 value &= ~(1 << bit_position); | 4980 value &= ~(1 << bit_position); |
4983 } | 4981 } |
4984 return value; | 4982 return value; |
4985 } | 4983 } |
4986 }; | 4984 }; |
4987 | 4985 |
4988 } } // namespace v8::internal | 4986 } } // namespace v8::internal |
4989 | 4987 |
4990 #endif // V8_OBJECTS_H_ | 4988 #endif // V8_OBJECTS_H_ |
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