JavaScriptCore-521.tar.gz

[apple/javascriptcore.git] / parser / Parser.cpp

diff --git a/parser/Parser.cpp b/parser/Parser.cpp
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+/*
+ *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "Parser.h"
+
+#include "Debugger.h"
+#include "Lexer.h"
+#include <wtf/HashSet.h>
+#include <wtf/Vector.h>
+#include <memory>
+
+using std::auto_ptr;
+
+#ifndef yyparse
+extern int jscyyparse(void*);
+#endif
+
+namespace JSC {
+
+void Parser::parse(JSGlobalData* globalData, int* errLine, UString* errMsg)
+{
+    ASSERT(!m_sourceElements);
+
+    int defaultErrLine;
+    UString defaultErrMsg;
+
+    if (!errLine)
+        errLine = &defaultErrLine;
+    if (!errMsg)
+        errMsg = &defaultErrMsg;
+
+    *errLine = -1;
+    *errMsg = 0;
+
+    Lexer& lexer = *globalData->lexer;
+    lexer.setCode(*m_source);
+
+    int parseError = jscyyparse(globalData);
+    bool lexError = lexer.sawError();
+    lexer.clear();
+
+    ParserRefCounted::deleteNewObjects(globalData);
+
+    if (parseError || lexError) {
+        *errLine = lexer.lineNo();
+        *errMsg = "Parse error";
+        m_sourceElements.clear();
+    }
+}
+
+void Parser::reparseInPlace(JSGlobalData* globalData, FunctionBodyNode* functionBodyNode)
+{
+    ASSERT(!functionBodyNode->data());
+
+    m_source = &functionBodyNode->source();
+    globalData->lexer->setIsReparsing();
+    parse(globalData, 0, 0);
+    ASSERT(m_sourceElements);
+
+    functionBodyNode->adoptData(std::auto_ptr<ScopeNodeData>(new ScopeNodeData(m_sourceElements.get(),
+                                                                               m_varDeclarations ? &m_varDeclarations->data : 0, 
+                                                                               m_funcDeclarations ? &m_funcDeclarations->data : 0,
+                                                                               m_numConstants)));
+    bool usesArguments = functionBodyNode->usesArguments();
+    functionBodyNode->setFeatures(m_features);
+    if (usesArguments && !functionBodyNode->usesArguments())
+        functionBodyNode->setUsesArguments();
+
+    m_source = 0;
+    m_sourceElements = 0;
+    m_varDeclarations = 0;
+    m_funcDeclarations = 0;
+}
+
+void Parser::didFinishParsing(SourceElements* sourceElements, ParserRefCountedData<DeclarationStacks::VarStack>* varStack, 
+                              ParserRefCountedData<DeclarationStacks::FunctionStack>* funcStack, CodeFeatures features, int lastLine, int numConstants)
+{
+    m_sourceElements = sourceElements;
+    m_varDeclarations = varStack;
+    m_funcDeclarations = funcStack;
+    m_features = features;
+    m_lastLine = lastLine;
+    m_numConstants = numConstants;
+}
+
+} // namespace JSC