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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 "JSParser.h"
     28 #include "Lexer.h"
     29 
     30 #ifdef ANDROID_INSTRUMENT
     31 #include "TimeCounter.h"
     32 #endif
     33 
     34 namespace JSC {
     35 
     36 void Parser::parse(JSGlobalData* globalData, FunctionParameters* parameters, JSParserStrictness strictness, JSParserMode mode, int* errLine, UString* errMsg)
     37 {
     38 #ifdef ANDROID_INSTRUMENT
     39     android::TimeCounter::start(android::TimeCounter::JavaScriptParseTimeCounter);
     40 #endif
     41     ASSERT(globalData);
     42     m_sourceElements = 0;
     43 
     44     int defaultErrLine;
     45     UString defaultErrMsg;
     46 
     47     if (!errLine)
     48         errLine = &defaultErrLine;
     49     if (!errMsg)
     50         errMsg = &defaultErrMsg;
     51 
     52     *errLine = -1;
     53     *errMsg = UString();
     54 
     55     Lexer& lexer = *globalData->lexer;
     56     lexer.setCode(*m_source, m_arena);
     57 
     58     const char* parseError = jsParse(globalData, parameters, strictness, mode, m_source);
     59     int lineNumber = lexer.lineNumber();
     60     bool lexError = lexer.sawError();
     61     lexer.clear();
     62 
     63     if (parseError || lexError) {
     64         *errLine = lineNumber;
     65         *errMsg = parseError ? parseError : "Parse error";
     66         m_sourceElements = 0;
     67     }
     68 #ifdef ANDROID_INSTRUMENT
     69     android::TimeCounter::record(android::TimeCounter::JavaScriptParseTimeCounter, __FUNCTION__);
     70 #endif
     71 }
     72 
     73 void Parser::didFinishParsing(SourceElements* sourceElements, ParserArenaData<DeclarationStacks::VarStack>* varStack,
     74                               ParserArenaData<DeclarationStacks::FunctionStack>* funcStack, CodeFeatures features, int lastLine, int numConstants, IdentifierSet& capturedVars)
     75 {
     76     m_sourceElements = sourceElements;
     77     m_varDeclarations = varStack;
     78     m_funcDeclarations = funcStack;
     79     m_capturedVariables.swap(capturedVars);
     80     m_features = features;
     81     m_lastLine = lastLine;
     82     m_numConstants = numConstants;
     83 }
     84 
     85 } // namespace JSC
     86