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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 1052 | 1052 |
| 1053 | 1053 |
| 1054 // ---------------------------------------------------------------------------- | 1054 // ---------------------------------------------------------------------------- |
| 1055 // Target is a support class to facilitate manipulation of the | 1055 // Target is a support class to facilitate manipulation of the |
| 1056 // Parser's target_stack_ (the stack of potential 'break' and | 1056 // Parser's target_stack_ (the stack of potential 'break' and |
| 1057 // 'continue' statement targets). Upon construction, a new target is | 1057 // 'continue' statement targets). Upon construction, a new target is |
| 1058 // added; it is removed upon destruction. | 1058 // added; it is removed upon destruction. |
| 1059 | 1059 |
| 1060 class Target BASE_EMBEDDED { | 1060 class Target BASE_EMBEDDED { |
| 1061 public: | 1061 public: |
| 1062 Target(Parser* parser, Node* node) | 1062 Target(Parser* parser, AstNode* node) |
| 1063 : parser_(parser), node_(node), previous_(parser_->target_stack_) { | 1063 : parser_(parser), node_(node), previous_(parser_->target_stack_) { |
| 1064 parser_->target_stack_ = this; | 1064 parser_->target_stack_ = this; |
| 1065 } | 1065 } |
| 1066 | 1066 |
| 1067 ~Target() { | 1067 ~Target() { |
| 1068 parser_->target_stack_ = previous_; | 1068 parser_->target_stack_ = previous_; |
| 1069 } | 1069 } |
| 1070 | 1070 |
| 1071 Target* previous() { return previous_; } | 1071 Target* previous() { return previous_; } |
| 1072 Node* node() { return node_; } | 1072 AstNode* node() { return node_; } |
| 1073 | 1073 |
| 1074 private: | 1074 private: |
| 1075 Parser* parser_; | 1075 Parser* parser_; |
| 1076 Node* node_; | 1076 AstNode* node_; |
| 1077 Target* previous_; | 1077 Target* previous_; |
| 1078 }; | 1078 }; |
| 1079 | 1079 |
| 1080 | 1080 |
| 1081 class TargetScope BASE_EMBEDDED { | 1081 class TargetScope BASE_EMBEDDED { |
| 1082 public: | 1082 public: |
| 1083 explicit TargetScope(Parser* parser) | 1083 explicit TargetScope(Parser* parser) |
| 1084 : parser_(parser), previous_(parser->target_stack_) { | 1084 : parser_(parser), previous_(parser->target_stack_) { |
| 1085 parser->target_stack_ = NULL; | 1085 parser->target_stack_ = NULL; |
| 1086 } | 1086 } |
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| 4679 start_position, | 4679 start_position, |
| 4680 is_expression); | 4680 is_expression); |
| 4681 return result; | 4681 return result; |
| 4682 } | 4682 } |
| 4683 | 4683 |
| 4684 | 4684 |
| 4685 #undef NEW | 4685 #undef NEW |
| 4686 | 4686 |
| 4687 | 4687 |
| 4688 } } // namespace v8::internal | 4688 } } // namespace v8::internal |
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