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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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3163 if (Token::IsUnaryOp(op)) { | 3163 if (Token::IsUnaryOp(op)) { |
3164 op = Next(); | 3164 op = Next(); |
3165 int position = scanner().location().beg_pos; | 3165 int position = scanner().location().beg_pos; |
3166 Expression* expression = ParseUnaryExpression(CHECK_OK); | 3166 Expression* expression = ParseUnaryExpression(CHECK_OK); |
3167 | 3167 |
3168 if (expression != NULL && (expression->AsLiteral() != NULL)) { | 3168 if (expression != NULL && (expression->AsLiteral() != NULL)) { |
3169 Handle<Object> literal = expression->AsLiteral()->value(); | 3169 Handle<Object> literal = expression->AsLiteral()->value(); |
3170 if (op == Token::NOT) { | 3170 if (op == Token::NOT) { |
3171 // Convert the literal to a boolean condition and negate it. | 3171 // Convert the literal to a boolean condition and negate it. |
3172 bool condition = literal->BooleanValue(); | 3172 bool condition = literal->BooleanValue(); |
3173 Handle<Object> result(isolate()->heap()->ToBoolean(!condition), | 3173 Handle<Object> result = isolate()->factory()->ToBoolean(!condition); |
3174 isolate()); | |
3175 return factory()->NewLiteral(result); | 3174 return factory()->NewLiteral(result); |
3176 } else if (literal->IsNumber()) { | 3175 } else if (literal->IsNumber()) { |
3177 // Compute some expressions involving only number literals. | 3176 // Compute some expressions involving only number literals. |
3178 double value = literal->Number(); | 3177 double value = literal->Number(); |
3179 switch (op) { | 3178 switch (op) { |
3180 case Token::ADD: | 3179 case Token::ADD: |
3181 return expression; | 3180 return expression; |
3182 case Token::SUB: | 3181 case Token::SUB: |
3183 return factory()->NewNumberLiteral(-value); | 3182 return factory()->NewNumberLiteral(-value); |
3184 case Token::BIT_NOT: | 3183 case Token::BIT_NOT: |
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5976 ASSERT(info()->isolate()->has_pending_exception()); | 5975 ASSERT(info()->isolate()->has_pending_exception()); |
5977 } else { | 5976 } else { |
5978 result = ParseProgram(); | 5977 result = ParseProgram(); |
5979 } | 5978 } |
5980 } | 5979 } |
5981 info()->SetFunction(result); | 5980 info()->SetFunction(result); |
5982 return (result != NULL); | 5981 return (result != NULL); |
5983 } | 5982 } |
5984 | 5983 |
5985 } } // namespace v8::internal | 5984 } } // namespace v8::internal |
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