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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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346 | 346 |
347 // True iff the expression is a literal represented as a smi. | 347 // True iff the expression is a literal represented as a smi. |
348 bool IsSmiLiteral(); | 348 bool IsSmiLiteral(); |
349 | 349 |
350 // True iff the expression is a string literal. | 350 // True iff the expression is a string literal. |
351 bool IsStringLiteral(); | 351 bool IsStringLiteral(); |
352 | 352 |
353 // True iff the expression is the null literal. | 353 // True iff the expression is the null literal. |
354 bool IsNullLiteral(); | 354 bool IsNullLiteral(); |
355 | 355 |
356 // True iff the expression is the undefined literal. | 356 // True if we can prove that the expression is the undefined literal. |
357 bool IsUndefinedLiteral(); | 357 bool IsUndefinedLiteral(Isolate* isolate); |
358 | 358 |
359 // Expression type bounds | 359 // Expression type bounds |
360 Bounds bounds() { return bounds_; } | 360 Bounds bounds() { return bounds_; } |
361 void set_bounds(Bounds bounds) { bounds_ = bounds; } | 361 void set_bounds(Bounds bounds) { bounds_ = bounds; } |
362 | 362 |
363 // Type feedback information for assignments and properties. | 363 // Type feedback information for assignments and properties. |
364 virtual bool IsMonomorphic() { | 364 virtual bool IsMonomorphic() { |
365 UNREACHABLE(); | 365 UNREACHABLE(); |
366 return false; | 366 return false; |
367 } | 367 } |
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1987 Expression* right() const { return right_; } | 1987 Expression* right() const { return right_; } |
1988 virtual int position() const { return pos_; } | 1988 virtual int position() const { return pos_; } |
1989 | 1989 |
1990 // Type feedback information. | 1990 // Type feedback information. |
1991 TypeFeedbackId CompareOperationFeedbackId() const { return reuse(id()); } | 1991 TypeFeedbackId CompareOperationFeedbackId() const { return reuse(id()); } |
1992 Handle<Type> combined_type() const { return combined_type_; } | 1992 Handle<Type> combined_type() const { return combined_type_; } |
1993 void set_combined_type(Handle<Type> type) { combined_type_ = type; } | 1993 void set_combined_type(Handle<Type> type) { combined_type_ = type; } |
1994 | 1994 |
1995 // Match special cases. | 1995 // Match special cases. |
1996 bool IsLiteralCompareTypeof(Expression** expr, Handle<String>* check); | 1996 bool IsLiteralCompareTypeof(Expression** expr, Handle<String>* check); |
1997 bool IsLiteralCompareUndefined(Expression** expr); | 1997 bool IsLiteralCompareUndefined(Expression** expr, Isolate* isolate); |
1998 bool IsLiteralCompareNull(Expression** expr); | 1998 bool IsLiteralCompareNull(Expression** expr); |
1999 | 1999 |
2000 protected: | 2000 protected: |
2001 CompareOperation(Isolate* isolate, | 2001 CompareOperation(Isolate* isolate, |
2002 Token::Value op, | 2002 Token::Value op, |
2003 Expression* left, | 2003 Expression* left, |
2004 Expression* right, | 2004 Expression* right, |
2005 int pos) | 2005 int pos) |
2006 : Expression(isolate), | 2006 : Expression(isolate), |
2007 op_(op), | 2007 op_(op), |
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3209 private: | 3209 private: |
3210 Isolate* isolate_; | 3210 Isolate* isolate_; |
3211 Zone* zone_; | 3211 Zone* zone_; |
3212 Visitor visitor_; | 3212 Visitor visitor_; |
3213 }; | 3213 }; |
3214 | 3214 |
3215 | 3215 |
3216 } } // namespace v8::internal | 3216 } } // namespace v8::internal |
3217 | 3217 |
3218 #endif // V8_AST_H_ | 3218 #endif // V8_AST_H_ |
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