parser/Parser.cpp

   1 /*
   2  *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2001 Peter Kelly (pmk@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 namespace JSC {
  31
  32 void Parser::parse(JSGlobalData* globalData, FunctionParameters* parameters, JSParserStrictness strictness, JSParserMode mode, int* errLine, UString* errMsg)
  33 {
  34     ASSERT(globalData);
  35     m_sourceElements = 0;
  36
  37     int defaultErrLine;
  38     UString defaultErrMsg;
  39
  40     if (!errLine)
  41         errLine = &defaultErrLine;
  42     if (!errMsg)
  43         errMsg = &defaultErrMsg;
  44
  45     *errLine = -1;
  46     *errMsg = UString();
  47
  48     Lexer& lexer = *globalData->lexer;
  49     lexer.setCode(*m_source, m_arena);
  50
  51     const char* parseError = jsParse(globalData, parameters, strictness, mode, m_source);
  52     int lineNumber = lexer.lineNumber();
  53     bool lexError = lexer.sawError();
  54     lexer.clear();
  55
  56     if (parseError || lexError) {
  57         *errLine = lineNumber;
  58         *errMsg = parseError ? parseError : "Parse error";
  59         m_sourceElements = 0;
  60     }
  61 }
  62
  63 void Parser::didFinishParsing(SourceElements* sourceElements, ParserArenaData<DeclarationStacks::VarStack>* varStack,
  64                               ParserArenaData<DeclarationStacks::FunctionStack>* funcStack, CodeFeatures features, int lastLine, int numConstants, IdentifierSet& capturedVars)
  65 {
  66     m_sourceElements = sourceElements;
  67     m_varDeclarations = varStack;
  68     m_funcDeclarations = funcStack;
  69     m_capturedVariables.swap(capturedVars);
  70     m_features = features;
  71     m_lastLine = lastLine;
  72     m_numConstants = numConstants;
  73 }
  74
  75 } // namespace JSC