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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 #include "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #include "src/api.h" | 7 #include "src/api.h" |
| 8 #include "src/ast.h" | 8 #include "src/ast.h" |
| 9 #include "src/bailout-reason.h" | 9 #include "src/bailout-reason.h" |
| 10 #include "src/base/platform/platform.h" | 10 #include "src/base/platform/platform.h" |
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| 729 int function_token_position, FunctionLiteral::FunctionType type, | 729 int function_token_position, FunctionLiteral::FunctionType type, |
| 730 FunctionLiteral::ArityRestriction arity_restriction, bool* ok) { | 730 FunctionLiteral::ArityRestriction arity_restriction, bool* ok) { |
| 731 return parser_->ParseFunctionLiteral( | 731 return parser_->ParseFunctionLiteral( |
| 732 name, function_name_location, name_is_strict_reserved, kind, | 732 name, function_name_location, name_is_strict_reserved, kind, |
| 733 function_token_position, type, arity_restriction, ok); | 733 function_token_position, type, arity_restriction, ok); |
| 734 } | 734 } |
| 735 | 735 |
| 736 | 736 |
| 737 Parser::Parser(CompilationInfo* info, ParseInfo* parse_info) | 737 Parser::Parser(CompilationInfo* info, ParseInfo* parse_info) |
| 738 : ParserBase<ParserTraits>(&scanner_, parse_info->stack_limit, | 738 : ParserBase<ParserTraits>(&scanner_, parse_info->stack_limit, |
| 739 info->extension(), NULL, info->zone(), | 739 info->extension(), NULL, info->zone(), this), |
| 740 info->ast_node_id_gen(), this), | |
| 741 scanner_(parse_info->unicode_cache), | 740 scanner_(parse_info->unicode_cache), |
| 742 reusable_preparser_(NULL), | 741 reusable_preparser_(NULL), |
| 743 original_scope_(NULL), | 742 original_scope_(NULL), |
| 744 target_stack_(NULL), | 743 target_stack_(NULL), |
| 745 cached_parse_data_(NULL), | 744 cached_parse_data_(NULL), |
| 746 info_(info), | 745 info_(info), |
| 747 has_pending_error_(false), | 746 has_pending_error_(false), |
| 748 pending_error_message_(NULL), | 747 pending_error_message_(NULL), |
| 749 pending_error_arg_(NULL), | 748 pending_error_arg_(NULL), |
| 750 pending_error_char_arg_(NULL), | 749 pending_error_char_arg_(NULL), |
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| 872 // Compute the parsing mode. | 871 // Compute the parsing mode. |
| 873 Mode mode = (FLAG_lazy && allow_lazy()) ? PARSE_LAZILY : PARSE_EAGERLY; | 872 Mode mode = (FLAG_lazy && allow_lazy()) ? PARSE_LAZILY : PARSE_EAGERLY; |
| 874 if (allow_natives_syntax() || extension_ != NULL || | 873 if (allow_natives_syntax() || extension_ != NULL || |
| 875 (*scope)->is_eval_scope()) { | 874 (*scope)->is_eval_scope()) { |
| 876 mode = PARSE_EAGERLY; | 875 mode = PARSE_EAGERLY; |
| 877 } | 876 } |
| 878 ParsingModeScope parsing_mode(this, mode); | 877 ParsingModeScope parsing_mode(this, mode); |
| 879 | 878 |
| 880 // Enters 'scope'. | 879 // Enters 'scope'. |
| 881 AstNodeFactory<AstConstructionVisitor> function_factory( | 880 AstNodeFactory<AstConstructionVisitor> function_factory( |
| 882 zone(), ast_value_factory(), info->ast_node_id_gen()); | 881 ast_value_factory()); |
| 883 FunctionState function_state(&function_state_, &scope_, *scope, | 882 FunctionState function_state(&function_state_, &scope_, *scope, |
| 884 &function_factory); | 883 &function_factory); |
| 885 | 884 |
| 886 scope_->SetStrictMode(info->strict_mode()); | 885 scope_->SetStrictMode(info->strict_mode()); |
| 887 ZoneList<Statement*>* body = new(zone()) ZoneList<Statement*>(16, zone()); | 886 ZoneList<Statement*>* body = new(zone()) ZoneList<Statement*>(16, zone()); |
| 888 bool ok = true; | 887 bool ok = true; |
| 889 int beg_pos = scanner()->location().beg_pos; | 888 int beg_pos = scanner()->location().beg_pos; |
| 890 ParseSourceElements(body, Token::EOS, info->is_eval(), true, eval_scope, | 889 ParseSourceElements(body, Token::EOS, info->is_eval(), true, eval_scope, |
| 891 &ok); | 890 &ok); |
| 892 | 891 |
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| 987 { | 986 { |
| 988 // Parse the function literal. | 987 // Parse the function literal. |
| 989 Scope* scope = NewScope(scope_, GLOBAL_SCOPE); | 988 Scope* scope = NewScope(scope_, GLOBAL_SCOPE); |
| 990 info()->SetGlobalScope(scope); | 989 info()->SetGlobalScope(scope); |
| 991 if (!info()->closure().is_null()) { | 990 if (!info()->closure().is_null()) { |
| 992 scope = Scope::DeserializeScopeChain(info()->closure()->context(), scope, | 991 scope = Scope::DeserializeScopeChain(info()->closure()->context(), scope, |
| 993 zone()); | 992 zone()); |
| 994 } | 993 } |
| 995 original_scope_ = scope; | 994 original_scope_ = scope; |
| 996 AstNodeFactory<AstConstructionVisitor> function_factory( | 995 AstNodeFactory<AstConstructionVisitor> function_factory( |
| 997 zone(), ast_value_factory(), info()->ast_node_id_gen()); | 996 ast_value_factory()); |
| 998 FunctionState function_state(&function_state_, &scope_, scope, | 997 FunctionState function_state(&function_state_, &scope_, scope, |
| 999 &function_factory); | 998 &function_factory); |
| 1000 DCHECK(scope->strict_mode() == SLOPPY || info()->strict_mode() == STRICT); | 999 DCHECK(scope->strict_mode() == SLOPPY || info()->strict_mode() == STRICT); |
| 1001 DCHECK(info()->strict_mode() == shared_info->strict_mode()); | 1000 DCHECK(info()->strict_mode() == shared_info->strict_mode()); |
| 1002 scope->SetStrictMode(shared_info->strict_mode()); | 1001 scope->SetStrictMode(shared_info->strict_mode()); |
| 1003 FunctionLiteral::FunctionType function_type = shared_info->is_expression() | 1002 FunctionLiteral::FunctionType function_type = shared_info->is_expression() |
| 1004 ? (shared_info->is_anonymous() | 1003 ? (shared_info->is_anonymous() |
| 1005 ? FunctionLiteral::ANONYMOUS_EXPRESSION | 1004 ? FunctionLiteral::ANONYMOUS_EXPRESSION |
| 1006 : FunctionLiteral::NAMED_EXPRESSION) | 1005 : FunctionLiteral::NAMED_EXPRESSION) |
| 1007 : FunctionLiteral::DECLARATION; | 1006 : FunctionLiteral::DECLARATION; |
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| 3489 FunctionLiteral::ParameterFlag duplicate_parameters = | 3488 FunctionLiteral::ParameterFlag duplicate_parameters = |
| 3490 FunctionLiteral::kNoDuplicateParameters; | 3489 FunctionLiteral::kNoDuplicateParameters; |
| 3491 FunctionLiteral::IsParenthesizedFlag parenthesized = parenthesized_function_ | 3490 FunctionLiteral::IsParenthesizedFlag parenthesized = parenthesized_function_ |
| 3492 ? FunctionLiteral::kIsParenthesized | 3491 ? FunctionLiteral::kIsParenthesized |
| 3493 : FunctionLiteral::kNotParenthesized; | 3492 : FunctionLiteral::kNotParenthesized; |
| 3494 AstProperties ast_properties; | 3493 AstProperties ast_properties; |
| 3495 BailoutReason dont_optimize_reason = kNoReason; | 3494 BailoutReason dont_optimize_reason = kNoReason; |
| 3496 // Parse function body. | 3495 // Parse function body. |
| 3497 { | 3496 { |
| 3498 AstNodeFactory<AstConstructionVisitor> function_factory( | 3497 AstNodeFactory<AstConstructionVisitor> function_factory( |
| 3499 zone(), ast_value_factory(), info()->ast_node_id_gen()); | 3498 ast_value_factory()); |
| 3500 FunctionState function_state(&function_state_, &scope_, scope, | 3499 FunctionState function_state(&function_state_, &scope_, scope, |
| 3501 &function_factory); | 3500 &function_factory); |
| 3502 scope_->SetScopeName(function_name); | 3501 scope_->SetScopeName(function_name); |
| 3503 | 3502 |
| 3504 if (is_generator) { | 3503 if (is_generator) { |
| 3505 // For generators, allocating variables in contexts is currently a win | 3504 // For generators, allocating variables in contexts is currently a win |
| 3506 // because it minimizes the work needed to suspend and resume an | 3505 // because it minimizes the work needed to suspend and resume an |
| 3507 // activation. | 3506 // activation. |
| 3508 scope_->ForceContextAllocation(); | 3507 scope_->ForceContextAllocation(); |
| 3509 | 3508 |
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| 4951 | 4950 |
| 4952 // We cannot internalize on a background thread; a foreground task will take | 4951 // We cannot internalize on a background thread; a foreground task will take |
| 4953 // care of calling Parser::Internalize just before compilation. | 4952 // care of calling Parser::Internalize just before compilation. |
| 4954 | 4953 |
| 4955 if (compile_options() == ScriptCompiler::kProduceParserCache) { | 4954 if (compile_options() == ScriptCompiler::kProduceParserCache) { |
| 4956 if (result != NULL) *info_->cached_data() = recorder.GetScriptData(); | 4955 if (result != NULL) *info_->cached_data() = recorder.GetScriptData(); |
| 4957 log_ = NULL; | 4956 log_ = NULL; |
| 4958 } | 4957 } |
| 4959 } | 4958 } |
| 4960 } } // namespace v8::internal | 4959 } } // namespace v8::internal |
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