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      1 /*
      2  *  Copyright (C) 1999-2001 Harri Porten (porten (at) kde.org)
      3  *  Copyright (C) 2001 Peter Kelly (pmk (at) post.com)
      4  *  Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      5  *
      6  *  This library is free software; you can redistribute it and/or
      7  *  modify it under the terms of the GNU Library General Public
      8  *  License as published by the Free Software Foundation; either
      9  *  version 2 of the License, or (at your option) any later version.
     10  *
     11  *  This library is distributed in the hope that it will be useful,
     12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  *  Library General Public License for more details.
     15  *
     16  *  You should have received a copy of the GNU Library General Public License
     17  *  along with this library; see the file COPYING.LIB.  If not, write to
     18  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  *  Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #include "config.h"
     24 #include "Parser.h"
     25 
     26 #include "Debugger.h"
     27 #include "Lexer.h"
     28 #include <wtf/HashSet.h>
     29 #include <wtf/Vector.h>
     30 #include <memory>
     31 
     32 using std::auto_ptr;
     33 
     34 #ifndef yyparse
     35 extern int jscyyparse(void*);
     36 #endif
     37 
     38 #ifdef ANDROID_INSTRUMENT
     39 #include "TimeCounter.h"
     40 #endif
     41 
     42 namespace JSC {
     43 
     44 void Parser::parse(JSGlobalData* globalData, int* errLine, UString* errMsg)
     45 {
     46 #ifdef ANDROID_INSTRUMENT
     47     android::TimeCounter::start(android::TimeCounter::JavaScriptParseTimeCounter);
     48 #endif
     49     m_sourceElements = 0;
     50 
     51     int defaultErrLine;
     52     UString defaultErrMsg;
     53 
     54     if (!errLine)
     55         errLine = &defaultErrLine;
     56     if (!errMsg)
     57         errMsg = &defaultErrMsg;
     58 
     59     *errLine = -1;
     60     *errMsg = UString();
     61 
     62     Lexer& lexer = *globalData->lexer;
     63     lexer.setCode(*m_source, m_arena);
     64 
     65     int parseError = jscyyparse(globalData);
     66     bool lexError = lexer.sawError();
     67     int lineNumber = lexer.lineNumber();
     68     lexer.clear();
     69 
     70     if (parseError || lexError) {
     71         *errLine = lineNumber;
     72         *errMsg = "Parse error";
     73         m_sourceElements = 0;
     74     }
     75 #ifdef ANDROID_INSTRUMENT
     76     android::TimeCounter::record(android::TimeCounter::JavaScriptParseTimeCounter, __FUNCTION__);
     77 #endif
     78 }
     79 
     80 void Parser::didFinishParsing(SourceElements* sourceElements, ParserArenaData<DeclarationStacks::VarStack>* varStack,
     81                               ParserArenaData<DeclarationStacks::FunctionStack>* funcStack, CodeFeatures features, int lastLine, int numConstants)
     82 {
     83     m_sourceElements = sourceElements;
     84     m_varDeclarations = varStack;
     85     m_funcDeclarations = funcStack;
     86     m_features = features;
     87     m_lastLine = lastLine;
     88     m_numConstants = numConstants;
     89 }
     90 
     91 } // namespace JSC
     92