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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_PARSING_PREPARSER_H | 5 #ifndef V8_PARSING_PREPARSER_H |
6 #define V8_PARSING_PREPARSER_H | 6 #define V8_PARSING_PREPARSER_H |
7 | 7 |
8 #include "src/ast/scopes.h" | 8 #include "src/ast/scopes.h" |
9 #include "src/bailout-reason.h" | 9 #include "src/bailout-reason.h" |
10 #include "src/base/hashmap.h" | 10 #include "src/base/hashmap.h" |
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1029 ast_value_factory, log, this), | 1029 ast_value_factory, log, this), |
1030 use_counts_(nullptr) {} | 1030 use_counts_(nullptr) {} |
1031 | 1031 |
1032 // Pre-parse the program from the character stream; returns true on | 1032 // Pre-parse the program from the character stream; returns true on |
1033 // success (even if parsing failed, the pre-parse data successfully | 1033 // success (even if parsing failed, the pre-parse data successfully |
1034 // captured the syntax error), and false if a stack-overflow happened | 1034 // captured the syntax error), and false if a stack-overflow happened |
1035 // during parsing. | 1035 // during parsing. |
1036 PreParseResult PreParseProgram(int* materialized_literals = 0, | 1036 PreParseResult PreParseProgram(int* materialized_literals = 0, |
1037 bool is_module = false) { | 1037 bool is_module = false) { |
1038 DCHECK_NULL(scope_state_); | 1038 DCHECK_NULL(scope_state_); |
1039 Scope* scope = NewScriptScope(); | 1039 DeclarationScope* scope = NewScriptScope(); |
1040 | 1040 |
1041 // ModuleDeclarationInstantiation for Source Text Module Records creates a | 1041 // ModuleDeclarationInstantiation for Source Text Module Records creates a |
1042 // new Module Environment Record whose outer lexical environment record is | 1042 // new Module Environment Record whose outer lexical environment record is |
1043 // the global scope. | 1043 // the global scope. |
1044 if (is_module) scope = NewModuleScope(scope); | 1044 if (is_module) scope = NewModuleScope(scope); |
1045 | 1045 |
1046 FunctionState top_scope(&function_state_, &scope_state_, scope, | 1046 FunctionState top_scope(&function_state_, &scope_state_, scope, |
1047 kNormalFunction); | 1047 kNormalFunction); |
1048 bool ok = true; | 1048 bool ok = true; |
1049 int start_position = scanner()->peek_location().beg_pos; | 1049 int start_position = scanner()->peek_location().beg_pos; |
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1259 const PreParserFormalParameters& parameters, FunctionKind kind, | 1259 const PreParserFormalParameters& parameters, FunctionKind kind, |
1260 FunctionLiteral::FunctionType function_type, bool* ok) { | 1260 FunctionLiteral::FunctionType function_type, bool* ok) { |
1261 return pre_parser_->ParseEagerFunctionBody(function_name, pos, parameters, | 1261 return pre_parser_->ParseEagerFunctionBody(function_name, pos, parameters, |
1262 kind, function_type, ok); | 1262 kind, function_type, ok); |
1263 } | 1263 } |
1264 | 1264 |
1265 } // namespace internal | 1265 } // namespace internal |
1266 } // namespace v8 | 1266 } // namespace v8 |
1267 | 1267 |
1268 #endif // V8_PARSING_PREPARSER_H | 1268 #endif // V8_PARSING_PREPARSER_H |
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