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Issue 6646017: Rebuild scope chain from serialized scope info before parsing lazily. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 9 years, 9 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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419 bool allow_natives_syntax, 419 bool allow_natives_syntax,
420 v8::Extension* extension, 420 v8::Extension* extension,
421 ScriptDataImpl* pre_data); 421 ScriptDataImpl* pre_data);
422 virtual ~Parser() { } 422 virtual ~Parser() { }
423 423
424 // Returns NULL if parsing failed. 424 // Returns NULL if parsing failed.
425 FunctionLiteral* ParseProgram(Handle<String> source, 425 FunctionLiteral* ParseProgram(Handle<String> source,
426 bool in_global_context, 426 bool in_global_context,
427 StrictModeFlag strict_mode); 427 StrictModeFlag strict_mode);
428 428
429 FunctionLiteral* ParseLazy(Handle<SharedFunctionInfo> info); 429 FunctionLiteral* ParseLazy(CompilationInfo* info);
430 430
431 void ReportMessageAt(Scanner::Location loc, 431 void ReportMessageAt(Scanner::Location loc,
432 const char* message, 432 const char* message,
433 Vector<const char*> args); 433 Vector<const char*> args);
434 void ReportMessageAt(Scanner::Location loc, 434 void ReportMessageAt(Scanner::Location loc,
435 const char* message, 435 const char* message,
436 Vector<Handle<String> > args); 436 Vector<Handle<String> > args);
437 437
438 protected: 438 protected:
439 // Limit on number of function parameters is chosen arbitrarily. 439 // Limit on number of function parameters is chosen arbitrarily.
440 // Code::Flags uses only the low 17 bits of num-parameters to 440 // Code::Flags uses only the low 17 bits of num-parameters to
441 // construct a hashable id, so if more than 2^17 are allowed, this 441 // construct a hashable id, so if more than 2^17 are allowed, this
442 // should be checked. 442 // should be checked.
443 static const int kMaxNumFunctionParameters = 32766; 443 static const int kMaxNumFunctionParameters = 32766;
444 FunctionLiteral* ParseLazy(Handle<SharedFunctionInfo> info, 444 FunctionLiteral* ParseLazy(CompilationInfo* info,
445 UC16CharacterStream* source, 445 UC16CharacterStream* source,
446 ZoneScope* zone_scope); 446 ZoneScope* zone_scope);
447 enum Mode { 447 enum Mode {
448 PARSE_LAZILY, 448 PARSE_LAZILY,
449 PARSE_EAGERLY 449 PARSE_EAGERLY
450 }; 450 };
451 451
452 // Called by ParseProgram after setting up the scanner. 452 // Called by ParseProgram after setting up the scanner.
453 FunctionLiteral* DoParseProgram(Handle<String> source, 453 FunctionLiteral* DoParseProgram(Handle<String> source,
454 bool in_global_context, 454 bool in_global_context,
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793 Handle<Object> ReportUnexpectedToken() { return Handle<Object>::null(); } 793 Handle<Object> ReportUnexpectedToken() { return Handle<Object>::null(); }
794 // Converts the currently parsed literal to a JavaScript String. 794 // Converts the currently parsed literal to a JavaScript String.
795 Handle<String> GetString(); 795 Handle<String> GetString();
796 796
797 JsonScanner scanner_; 797 JsonScanner scanner_;
798 bool stack_overflow_; 798 bool stack_overflow_;
799 }; 799 };
800 } } // namespace v8::internal 800 } } // namespace v8::internal
801 801
802 #endif // V8_PARSER_H_ 802 #endif // V8_PARSER_H_
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