multi-parser approach applied to C99

lrparser/org.eclipse.cdt.core.lrparser/grammar/build.xml

@@ -41,11 +41,30 @@
 	
 	<target name="c99">
 		<description>Generate the C99 parser</description>
+		<!-- Generate main parser -->
 		<antcall target="generate">
 			<param name="grammar_dir" value="c99"/>
             <param name="grammar_name" value="C99Parser"/>
 			<param name="output_dir" value="org/eclipse/cdt/internal/core/dom/lrparser/c99"/>
 		</antcall>
+		<!-- Generate parser for disambiguating declarations vs expression statements -->
+		<antcall target="generate">
+			<param name="grammar_dir" value="c99"/>
+            <param name="grammar_name" value="C99ExpressionStatementParser"/>
+			<param name="output_dir" value="org/eclipse/cdt/internal/core/dom/lrparser/c99"/>
+		</antcall>
+		<!-- Generate parser for disambiguating cast expressions vs binary expressions-->
+		<antcall target="generate">
+			<param name="grammar_dir" value="c99"/>
+            <param name="grammar_name" value="C99NoCastExpressionParser"/>
+			<param name="output_dir" value="org/eclipse/cdt/internal/core/dom/lrparser/c99"/>
+		</antcall>
+		<!-- Generate parser for disambiguating sizeof expressions -->
+		<antcall target="generate">
+			<param name="grammar_dir" value="c99"/>
+            <param name="grammar_name" value="C99SizeofExpressionParser"/>
+			<param name="output_dir" value="org/eclipse/cdt/internal/core/dom/lrparser/c99"/>
+		</antcall>
 	</target>
 	
 	

lrparser/org.eclipse.cdt.core.lrparser/grammar/c99/C99ExpressionStatementParser.g

@@ -0,0 +1,47 @@
+-----------------------------------------------------------------------------------
+-- Copyright (c) 2006, 2008 IBM Corporation and others.
+-- All rights reserved. This program and the accompanying materials
+-- are made available under the terms of the Eclipse Public License v1.0
+-- which accompanies this distribution, and is available at
+-- http://www.eclipse.org/legal/epl-v10.html
+--
+-- Contributors:
+--     IBM Corporation - initial API and implementation
+-----------------------------------------------------------------------------------
+
+%options la=2
+%options package=org.eclipse.cdt.internal.core.dom.lrparser.c99
+%options template=btParserTemplateD.g
+
+-- All we need to do is import the main parser and redefine the start symbol.
+
+$Define
+	$sym_class /. C99ExpressionStatementParsersym ./
+$End
+
+$Import
+	C99Grammar.g
+$End
+
+$Start
+    expression_parser_start
+$End
+
+
+
+$Headers
+/.
+	public IASTExpression getParseResult() {
+		return (IASTExpression) action.getSecondaryParseResult();
+	}
+./
+$End
+
+$Rules
+
+expression_parser_start
+    ::= expression ';'
+      | ERROR_TOKEN
+          /. $Build  consumeExpressionProblem();  $EndBuild ./
+          
+$End

lrparser/org.eclipse.cdt.core.lrparser/grammar/c99/C99NoCastExpressionParser.g

@@ -0,0 +1,57 @@
+-----------------------------------------------------------------------------------
+-- Copyright (c) 2006, 2008 IBM Corporation and others.
+-- All rights reserved. This program and the accompanying materials
+-- are made available under the terms of the Eclipse Public License v1.0
+-- which accompanies this distribution, and is available at
+-- http://www.eclipse.org/legal/epl-v10.html
+--
+-- Contributors:
+--     IBM Corporation - initial API and implementation
+-----------------------------------------------------------------------------------
+
+%options la=2
+%options package=org.eclipse.cdt.internal.core.dom.lrparser.c99
+%options template=btParserTemplateD.g
+
+
+$Define
+	$sym_class /. C99NoCastExpressionParsersym ./
+$End
+
+$Import
+	C99Grammar.g
+
+$DropRules
+
+cast_expression
+    ::= '(' type_name ')' cast_expression
+
+-- The following rule remains in the grammar:
+--    cast_expression ::= unary_expression 
+
+$End
+
+
+$Start
+    no_cast_start
+$End
+
+
+
+$Headers
+/.
+	public IASTExpression getParseResult() {
+		return (IASTExpression) action.getSecondaryParseResult();
+	}
+./
+$End
+
+
+$Rules 
+
+no_cast_start
+    ::= expression
+      | ERROR_TOKEN
+          /. $Build  consumeExpressionProblem();  $EndBuild ./
+          
+$End

lrparser/org.eclipse.cdt.core.lrparser/grammar/c99/C99SizeofExpressionParser.g

@@ -0,0 +1,54 @@
+-----------------------------------------------------------------------------------
+-- Copyright (c) 2006, 2008 IBM Corporation and others.
+-- All rights reserved. This program and the accompanying materials
+-- are made available under the terms of the Eclipse Public License v1.0
+-- which accompanies this distribution, and is available at
+-- http://www.eclipse.org/legal/epl-v10.html
+--
+-- Contributors:
+--     IBM Corporation - initial API and implementation
+-----------------------------------------------------------------------------------
+
+%options la=2
+%options package=org.eclipse.cdt.internal.core.dom.lrparser.c99
+%options template=btParserTemplateD.g
+
+
+$Define
+	$sym_class /. C99SizeofExpressionParsersym ./
+$End
+
+$Import
+	C99Grammar.g
+
+$DropRules
+
+unary_expression
+    ::= 'sizeof' '(' type_name ')'
+    
+$End
+
+
+$Start
+    no_sizeof_type_name_start
+$End
+
+
+
+$Headers
+/.
+	public IASTExpression getParseResult() {
+		return (IASTExpression) action.getSecondaryParseResult();
+	}
+./
+$End
+
+
+$Rules 
+
+no_sizeof_type_name_start
+    ::= expression
+      | ERROR_TOKEN
+          /. $Build  consumeExpressionProblem();  $EndBuild ./
+          
+$End

lrparser/org.eclipse.cdt.core.lrparser/grammar/common.g

@@ -33,76 +33,49 @@ $Define
 	$ast_class /.Object./
 	$data_class /. Object ./ -- allow anything to be passed between actions
 	
-	--$additional_interfaces /. , IParserActionTokenProvider, IParser ./
+	$additional_interfaces /. , IParserActionTokenProvider, IParser ./
-	$additional_interfaces /. ./
 	
 	$build_action_class /.  ./
 	$resolve_action_class /.  ./
 	$node_factory_create_expression /.  ./
 	
-	
 	$lexer_class /.  ./
 	$action_class /.  ./
 	
-	
+	$Build /. $BeginAction action. ./
-	$UndoResolver /.$Undo action.resolver.undo(); $EndUndo./
+	$EndBuild /. $EndAction ./
-	
-	$Resolve /. $BeginTrial $resolve.
-	./
-	$EndResolve /. $EndTrial 
-		$UndoResolver
-	./ -- undo actions are automatically generated for binding resolution actions
-	
-	$Builder /. $BeginFinal  $builder.
-	./ 
-	$EndBuilder /. /*$builder.getASTStack().print();*/ $EndFinal ./
-
-	$Build /. $Action $Builder ./
-	$EndBuild /. $EndBuilder $EndAction ./
-	
-	$resolve /. action.resolver./
-	$builder /. action.builder./
-
-
--- comment out when using trial/undo
-	--$Action /. $BeginAction ./
-	--$BeginFinal /. ./
-	--$EndFinal /. ./
-	--$BeginTrial /. ./
-	--$EndTrial /. ./
-	--$Undo /. ./
-	--$EndUndo /. ./
 $End
 
 
+
+$Globals
+/.	
+	import java.util.*;
+	import org.eclipse.cdt.core.dom.ast.*;
+	import org.eclipse.cdt.core.dom.lrparser.IParser;
+	import org.eclipse.cdt.core.dom.lrparser.IParserActionTokenProvider;
+	import org.eclipse.cdt.core.dom.lrparser.util.DebugUtil;	
+./
+$End
+
 $Headers
 /.
-	private $action_class action;	
+	private $build_action_class action;
 	
-	//public $action_type() {  // constructor
+	public $action_type() {  // constructor
-	//}
+	}
 	
 	private void initActions(IASTTranslationUnit tu) {
-	    // binding resolution actions need access to IASTName nodes, temporary
+		action = new $build_action_class($node_factory_create_expression, this, tu);
-	    action = new $action_class();
+		action.setTokenMap($sym_class.orderedTerminalSymbols);
-		action.resolver = new $resolve_action_class(this);
-		action.builder  = new $build_action_class($node_factory_create_expression, this, tu);
-		action.builder.setTokenMap($sym_class.orderedTerminalSymbols);
-		//setParserAction(action);
 	}
 	
 	
 	public void addToken(IToken token) {
-		token.setKind(mapKind(token.getKind()));
+		token.setKind(mapKind(token.getKind())); // TODO does mapKind need to be called?
 		super.addToken(token);
 	}
 	
-	public void setTokens(List<IToken> tokens) {
-		resetTokenStream();
-		for(IToken token : tokens) {
-			addToken(token);
-		}
-	}
 	
 	public IASTCompletionNode parse(IASTTranslationUnit tu) {
 		// this has to be done, or... kaboom!
@@ -114,21 +87,45 @@ $Headers
 		super.resetTokenStream(); // allow tokens to be garbage collected
 	
 		// the completion node may be null
-		IASTCompletionNode compNode = action.builder.getASTCompletionNode();
+		IASTCompletionNode compNode = action.getASTCompletionNode();
 	
-		action = null;
+		//action = null;
-		parserAction = null;
+		//parserAction = null;
 		return compNode;
 	}
 
-
+	// uncomment this method to use with backtracking parser
-	public int getKind(int i) {
+	public List getRuleTokens() {
-		int kind = super.getKind(i);
+	    return Collections.unmodifiableList(getTokens().subList(getLeftSpan(), getRightSpan() + 1));
-		// lexer feedback hack!
+	}
-		//if(kind == $sym_class.TK_identifier && action.resolver.isTypedef(getTokenText(i))) {
+	
-		//	kind = $sym_class.TK_TypedefName;
+./
-		//}
+$End
-		return kind;
+
+$Globals
+/.
+    import org.eclipse.cdt.core.dom.lrparser.action.ITokenMap;
+    import org.eclipse.cdt.core.dom.lrparser.action.TokenMap;
+./
+$End
+
+$Headers
+/.
+
+	private ITokenMap tokenMap = null;
+	
+	public void setTokens(List<IToken> tokens) {
+		resetTokenStream();
+		addToken(new Token(null, 0, 0, 0)); // dummy token
+		for(IToken token : tokens) {
+			token.setKind(tokenMap.mapKind(token.getKind()));
+			addToken(token);
+		}
+		addToken(new Token(null, 0, 0, $sym_class.TK_EOF_TOKEN));
+	}
+	
+	public $action_type(String[] mapFrom) {  // constructor
+		tokenMap = new TokenMap($sym_class.orderedTerminalSymbols, mapFrom);
 	}	
 	
 ./

lrparser/org.eclipse.cdt.core.lrparser/grammar/cpp/CPPParser.g

@@ -1588,6 +1588,7 @@ conversion_declarator
           /. $Build  consumeDeclaratorWithPointer(false);  $EndBuild ./
       
  
+ 
 --conversion_declarator_opt
 --    ::= conversion_declarator
 --      | $empty

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/core/dom/lrparser/action/BuildASTParserAction.java

@@ -15,6 +15,7 @@ import java.util.List;
 
 import lpg.lpgjavaruntime.IToken;
 
+import org.eclipse.cdt.core.dom.ast.ASTVisitor;
 import org.eclipse.cdt.core.dom.ast.IASTArrayDeclarator;
 import org.eclipse.cdt.core.dom.ast.IASTArrayModifier;
 import org.eclipse.cdt.core.dom.ast.IASTArraySubscriptExpression;
@@ -52,9 +53,9 @@ import org.eclipse.cdt.core.dom.ast.IASTNullStatement;
 import org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTPointerOperator;
 import org.eclipse.cdt.core.dom.ast.IASTProblem;
+import org.eclipse.cdt.core.dom.ast.IASTProblemExpression;
 import org.eclipse.cdt.core.dom.ast.IASTProblemHolder;
 import org.eclipse.cdt.core.dom.ast.IASTReturnStatement;
-import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclSpecifier;
 import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTStatement;
 import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
@@ -65,13 +66,13 @@ import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier.IASTEnumerator;
 import org.eclipse.cdt.core.dom.ast.c.ICASTDeclSpecifier;
 import org.eclipse.cdt.core.dom.ast.c.ICASTPointer;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCastExpression;
-import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTDeclSpecifier;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTLiteralExpression;
-import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTSimpleDeclSpecifier;
 import org.eclipse.cdt.core.dom.lrparser.IParserActionTokenProvider;
 import org.eclipse.cdt.core.dom.lrparser.util.DebugUtil;
+import org.eclipse.cdt.internal.core.dom.lrparser.c99.C99NoCastExpressionParser;
+import org.eclipse.cdt.internal.core.dom.lrparser.c99.C99Parsersym;
 import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
-import org.eclipse.cdt.internal.core.dom.parser.c.CASTNode;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousExpression;
 
 
 /**
@@ -117,6 +118,11 @@ public abstract class BuildASTParserAction {
 	private final IASTNodeFactory nodeFactory;
 	
 	
+	protected static final ASTVisitor EMPTY_VISITOR = new ASTVisitor() {
+		{ shouldVisitStatements = true; }
+	};
+	
+    
 	
 	/**
 	 * Completion tokens are represented by different kinds by different parsers.
@@ -165,6 +171,13 @@ public abstract class BuildASTParserAction {
 	}
 	
 	
+	/**
+	 * Used to get the result of secondary parsers.
+	 */
+	public Object getSecondaryParseResult() {
+		return astStack.pop();
+	}
+	
 	
 	
 	protected static int offset(IToken token) {
@@ -298,6 +311,9 @@ public abstract class BuildASTParserAction {
             setOffsetAndLength(tu, 0, offset(d) + length(d));
         } 
         
+        // resolve ambiguities
+        tu.accept(EMPTY_VISITOR);
+
         if(TRACE_AST_STACK) System.out.println(astStack);
 	}
 	
@@ -439,6 +455,8 @@ public abstract class BuildASTParserAction {
 	
 	/**
 	 * @param operator constant for {@link ICPPASTCastExpression}
+	 * 
+	 * TODO Remove C99 specific code
 	 */
 	public void consumeExpressionCast(int operator) {
 		if(TRACE_ACTIONS) DebugUtil.printMethodTrace();
@@ -447,7 +465,18 @@ public abstract class BuildASTParserAction {
 		IASTTypeId typeId = (IASTTypeId) astStack.pop();
 		IASTCastExpression expr = nodeFactory.newCastExpression(operator, typeId, operand);
 		setOffsetAndLength(expr);
-		astStack.push(expr);
+				
+		// try parsing as non-cast to resolve ambiguities
+		C99NoCastExpressionParser alternateParser = new C99NoCastExpressionParser(C99Parsersym.orderedTerminalSymbols); 
+		alternateParser.setTokens(parser.getRuleTokens());
+		alternateParser.parse(tu);
+		IASTExpression alternateExpr = alternateParser.getParseResult();
+		
+		if(alternateExpr == null || alternateExpr instanceof IASTProblemExpression)
+			astStack.push(expr);
+		else
+			astStack.push(nodeFactory.newAmbiguousExpression(expr, alternateExpr));
+
 		
 		if(TRACE_AST_STACK) System.out.println(astStack);
 	}
@@ -598,6 +627,7 @@ public abstract class BuildASTParserAction {
 	}
 	
 	
+	
 	/**
 	 * compound_statement ::= <openscope> '{' block_item_list '}'
 	 * 

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/core/dom/lrparser/action/IASTNodeFactory.java

@@ -62,6 +62,8 @@ import org.eclipse.cdt.core.dom.ast.IASTTypeIdExpression;
 import org.eclipse.cdt.core.dom.ast.IASTUnaryExpression;
 import org.eclipse.cdt.core.dom.ast.IASTWhileStatement;
 import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier.IASTEnumerator;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousExpression;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousStatement;
 
 
 /**
@@ -69,6 +71,7 @@ import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier.IASTEnumerator;
  * 
  * @author Mike Kucera
  */
+@SuppressWarnings("restriction")
 public interface IASTNodeFactory {
 
 	public IASTName newName(char[] name);
@@ -172,4 +175,8 @@ public interface IASTNodeFactory {
 	
 	public IASTFieldDeclarator newFieldDeclarator(IASTName name, IASTExpression bitFieldSize);
 	
+	public IASTAmbiguousStatement newAmbiguousStatement(IASTStatement... statements);
+	
+	public IASTAmbiguousExpression newAmbiguousExpression(IASTExpression... expressions);
+	
 }

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/core/dom/lrparser/action/c99/C99ASTNodeFactory.java

@@ -384,12 +384,12 @@ public class C99ASTNodeFactory implements IC99ASTNodeFactory {
 		return new CASTProblem(id, arg, warn, error);
 	}
 
-	public IASTAmbiguousExpression newAmbiguousExpression() {
+	public IASTAmbiguousExpression newAmbiguousExpression(IASTExpression... expressions) {
-		return new CASTAmbiguousExpression();
+		return new CASTAmbiguousExpression(expressions);
 	}
 
-	public IASTAmbiguousStatement newAmbiguousStatement() {
+	public IASTAmbiguousStatement newAmbiguousStatement(IASTStatement... statements) {
-		return new CASTAmbiguousStatement();
+		return new CASTAmbiguousStatement(statements);
 	}
 
 	public IASTTranslationUnit newTranslationUnit() {

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/core/dom/lrparser/action/c99/C99BuildASTParserAction.java

@@ -42,20 +42,19 @@ import org.eclipse.cdt.core.dom.ast.IASTCompoundStatement;
 import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
 import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTDeclarationStatement;
-import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
 import org.eclipse.cdt.core.dom.ast.IASTElaboratedTypeSpecifier;
 import org.eclipse.cdt.core.dom.ast.IASTExpression;
 import org.eclipse.cdt.core.dom.ast.IASTExpressionStatement;
 import org.eclipse.cdt.core.dom.ast.IASTFieldReference;
 import org.eclipse.cdt.core.dom.ast.IASTFunctionDeclarator;
 import org.eclipse.cdt.core.dom.ast.IASTFunctionDefinition;
-import org.eclipse.cdt.core.dom.ast.IASTIdExpression;
 import org.eclipse.cdt.core.dom.ast.IASTIfStatement;
 import org.eclipse.cdt.core.dom.ast.IASTInitializer;
 import org.eclipse.cdt.core.dom.ast.IASTInitializerList;
 import org.eclipse.cdt.core.dom.ast.IASTName;
 import org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTPointer;
+import org.eclipse.cdt.core.dom.ast.IASTProblemExpression;
 import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclSpecifier;
 import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTStandardFunctionDeclarator;
@@ -63,6 +62,8 @@ import org.eclipse.cdt.core.dom.ast.IASTStatement;
 import org.eclipse.cdt.core.dom.ast.IASTSwitchStatement;
 import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
 import org.eclipse.cdt.core.dom.ast.IASTTypeId;
+import org.eclipse.cdt.core.dom.ast.IASTTypeIdExpression;
+import org.eclipse.cdt.core.dom.ast.IASTUnaryExpression;
 import org.eclipse.cdt.core.dom.ast.IASTWhileStatement;
 import org.eclipse.cdt.core.dom.ast.c.ICASTArrayDesignator;
 import org.eclipse.cdt.core.dom.ast.c.ICASTArrayModifier;
@@ -82,8 +83,14 @@ import org.eclipse.cdt.core.dom.lrparser.action.ITokenMap;
 import org.eclipse.cdt.core.dom.lrparser.action.TokenMap;
 import org.eclipse.cdt.core.dom.lrparser.util.CollectionUtils;
 import org.eclipse.cdt.core.dom.lrparser.util.DebugUtil;
+import org.eclipse.cdt.internal.core.dom.lrparser.c99.C99ExpressionStatementParser;
+import org.eclipse.cdt.internal.core.dom.lrparser.c99.C99NoCastExpressionParser;
 import org.eclipse.cdt.internal.core.dom.lrparser.c99.C99Parsersym;
+import org.eclipse.cdt.internal.core.dom.lrparser.c99.C99SizeofExpressionParser;
 import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousExpression;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousStatement;
+import org.eclipse.cdt.internal.core.dom.parser.c.CASTAmbiguousExpression;
 
 /**
  * Semantic actions called by the C99 parser to build an AST.
@@ -171,6 +178,31 @@ public class C99BuildASTParserAction extends BuildASTParserAction  {
 		if(TRACE_AST_STACK) System.out.println(astStack);
 	}
 	
+	/**
+	 * Lots of rules, no need to list them.
+	 * @param operator From IASTUnaryExpression
+	 */
+	public void consumeExpressionSizeofTypeId() {
+		if(TRACE_ACTIONS) DebugUtil.printMethodTrace();
+		
+		IASTTypeId typeId = (IASTTypeId) astStack.pop();
+		IASTTypeIdExpression expr = nodeFactory.newTypeIdExpression(IASTTypeIdExpression.op_sizeof, typeId);
+		setOffsetAndLength(expr);
+		
+		// try parsing as an expression to resolve ambiguities
+		C99SizeofExpressionParser alternateParser = new C99SizeofExpressionParser(C99Parsersym.orderedTerminalSymbols); 
+		alternateParser.setTokens(parser.getRuleTokens());
+		alternateParser.parse(tu);
+		IASTExpression alternateExpr = alternateParser.getParseResult();
+		
+		if(alternateExpr == null || alternateExpr instanceof IASTProblemExpression)
+			astStack.push(expr);
+		else
+			astStack.push(nodeFactory.newAmbiguousExpression(expr, alternateExpr));
+		
+		if(TRACE_AST_STACK) System.out.println(astStack);
+	}
+	
 	
 	/**
 	 * Sets a token specifier.
@@ -648,13 +680,30 @@ public class C99BuildASTParserAction extends BuildASTParserAction  {
 		if(TRACE_ACTIONS) DebugUtil.printMethodTrace();
 		
 		IASTDeclaration decl = (IASTDeclaration) astStack.pop();
+		IASTDeclarationStatement declarationStatement = nodeFactory.newDeclarationStatement(decl);
+		setOffsetAndLength(declarationStatement);
 		
-		if(disambiguateHackIdentifierExpression(decl))
+		// attempt to also parse the tokens as an expression
-			return;
+		IASTExpressionStatement expressionStatement = null;
+		if(decl instanceof IASTSimpleDeclaration) {
+			// TODO this probably has bad performance
+			C99ExpressionStatementParser expressionParser = new C99ExpressionStatementParser(C99Parsersym.orderedTerminalSymbols); 
+			expressionParser.setTokens(parser.getRuleTokens());
+			// need to pass tu because any completion nodes need to be linked directly to the root
+			expressionParser.parse(tu);
+			IASTExpression expr = expressionParser.getParseResult();
+			
+			if(expr != null && !(expr instanceof IASTProblemExpression)) { // the parse may fail
+				expressionStatement = nodeFactory.newExpressionStatement(expr);
+				setOffsetAndLength(expressionStatement);
+			}
+		}
+		
+		if(expressionStatement == null)
+			astStack.push(declarationStatement);
+		else
+			astStack.push(nodeFactory.newAmbiguousStatement(declarationStatement, expressionStatement));
 			
-		IASTDeclarationStatement stat = nodeFactory.newDeclarationStatement(decl);
-		setOffsetAndLength(stat);
-		astStack.push(stat);
 		
 		if(TRACE_AST_STACK) System.out.println(astStack);
 	}
@@ -662,46 +711,46 @@ public class C99BuildASTParserAction extends BuildASTParserAction  {
 	
 	
 	
-	
+//	
-	/**
+//	/**
-	 * Kludgy way to disambiguate a certain case.
+//	 * Kludgy way to disambiguate a certain case.
-	 * An identifier alone on a line will be parsed as a declaration
+//	 * An identifier alone on a line will be parsed as a declaration
-	 * but it probably should be an expression.
+//	 * but it probably should be an expression.
-	 * eg) i;
+//	 * eg) i;
-	 * 
+//	 * 
-	 * This only happens in the presence of a completion token.
+//	 * This only happens in the presence of a completion token.
-	 * 
+//	 * 
-	 * @return true if the hack was applied
+//	 * @return true if the hack was applied
-	 */
+//	 */
-	private boolean disambiguateHackIdentifierExpression(IASTDeclaration decl) {
+//	private boolean disambiguateHackIdentifierExpression(IASTDeclaration decl) {
-		if(TRACE_ACTIONS) DebugUtil.printMethodTrace();
+//		if(TRACE_ACTIONS) DebugUtil.printMethodTrace();
-		
+//		
-		// this is only meant to work with content assist
+//		// this is only meant to work with content assist
-		List<IToken> tokens = parser.getRuleTokens();
+//		List<IToken> tokens = parser.getRuleTokens();
-		if(tokens.size() != 2 || tokens.get(0).getKind() == TK_typedef)
+//		if(tokens.size() != 2 || tokens.get(0).getKind() == TK_typedef)
-			return false;
+//			return false;
-		
+//		
-		if(decl instanceof IASTSimpleDeclaration) {
+//		if(decl instanceof IASTSimpleDeclaration) {
-			IASTSimpleDeclaration declaration = (IASTSimpleDeclaration) decl;
+//			IASTSimpleDeclaration declaration = (IASTSimpleDeclaration) decl;
-			if(declaration.getDeclarators() == IASTDeclarator.EMPTY_DECLARATOR_ARRAY) {
+//			if(declaration.getDeclarators() == IASTDeclarator.EMPTY_DECLARATOR_ARRAY) {
-				IASTDeclSpecifier declSpec = declaration.getDeclSpecifier();
+//				IASTDeclSpecifier declSpec = declaration.getDeclSpecifier();
-				if(declSpec instanceof ICASTTypedefNameSpecifier) {
+//				if(declSpec instanceof ICASTTypedefNameSpecifier) {
-					ICASTTypedefNameSpecifier typedefNameSpec = (ICASTTypedefNameSpecifier) declSpec;
+//					ICASTTypedefNameSpecifier typedefNameSpec = (ICASTTypedefNameSpecifier) declSpec;
-					IASTName name = typedefNameSpec.getName();
+//					IASTName name = typedefNameSpec.getName();
-					
+//					
-					if(offset(name) == offset(typedefNameSpec) && length(name) == length(typedefNameSpec)) {
+//					if(offset(name) == offset(typedefNameSpec) && length(name) == length(typedefNameSpec)) {
-						IASTIdExpression idExpr = nodeFactory.newIdExpression(name);
+//						IASTIdExpression idExpr = nodeFactory.newIdExpression(name);
-						IASTExpressionStatement stat = nodeFactory.newExpressionStatement(idExpr);
+//						IASTExpressionStatement stat = nodeFactory.newExpressionStatement(idExpr);
-
+//
-						setOffsetAndLength(stat);
+//						setOffsetAndLength(stat);
-						astStack.push(stat);
+//						astStack.push(stat);
-						return true;
+//						return true;
-					}
+//					}
-				}
+//				}
-			}
+//			}
-		}
+//		}
-		return false;
+//		return false;
-	}
+//	}
 	
 	
 	

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/core/dom/lrparser/action/cpp/CPPASTNodeFactory.java

@@ -96,7 +96,13 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTUsingDirective;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTVisiblityLabel;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCompositeTypeSpecifier.ICPPASTBaseSpecifier;
 import org.eclipse.cdt.core.dom.lrparser.action.ASTCompletionNode;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousDeclaration;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousExpression;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousStatement;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTASMDeclaration;
+import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTAmbiguousDeclaration;
+import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTAmbiguousExpression;
+import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTAmbiguousStatement;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTArrayDeclarator;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTArrayModifier;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTArraySubscriptExpression;
@@ -533,4 +539,16 @@ public class CPPASTNodeFactory implements ICPPASTNodeFactory {
 		return new CPPASTTemplatedTypeTemplateParameter(name, idExpression);
 	}
 
+	public IASTAmbiguousDeclaration newAmbiguousDeclaration(IASTDeclaration... declarations) {
+		return new CPPASTAmbiguousDeclaration(declarations);
+	}
+
+	public IASTAmbiguousExpression newAmbiguousExpression(IASTExpression... expressions) {
+		return new CPPASTAmbiguousExpression(expressions);
+	}
+
+	public IASTAmbiguousStatement newAmbiguousStatement(IASTStatement... statements) {
+		return new CPPASTAmbiguousStatement(statements);
+	}
+
 }

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/core/dom/lrparser/action/cpp/ICPPASTNodeFactory.java

@@ -52,12 +52,14 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTUsingDirective;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTVisiblityLabel;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCompositeTypeSpecifier.ICPPASTBaseSpecifier;
 import org.eclipse.cdt.core.dom.lrparser.action.IASTNodeFactory;
+import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousDeclaration;
 
 /**
  * TODO remove CPP from method names.
  * 
  * @author Mike Kucera
  */
+@SuppressWarnings("restriction")
 public interface ICPPASTNodeFactory extends IASTNodeFactory {
 
 	public ICPPASTOperatorName newCPPOperatorName(char[] name);
@@ -131,4 +133,6 @@ public interface ICPPASTNodeFactory extends IASTNodeFactory {
 	public ICPPASTSimpleTypeTemplateParameter newSimpleTypeTemplateParameter(int type, IASTName name, IASTTypeId typeId);
 
 	public ICPPASTTemplatedTypeTemplateParameter newTemplatedTypeTemplateParameter(IASTName name, IASTExpression idExpression);
+	
+	public IASTAmbiguousDeclaration newAmbiguousDeclaration(IASTDeclaration... declarations);
 }

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/internal/core/dom/lrparser/c99/C99ExpressionStatementParsersym.java

@@ -0,0 +1,210 @@
+/*******************************************************************************
+* Copyright (c) 2006, 2008 IBM Corporation and others.
+* All rights reserved. This program and the accompanying materials
+* are made available under the terms of the Eclipse Public License v1.0
+* which accompanies this distribution, and is available at
+* http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*     IBM Corporation - initial API and implementation
+*********************************************************************************/
+
+// This file was generated by LPG
+
+package org.eclipse.cdt.internal.core.dom.lrparser.c99;
+
+public interface C99ExpressionStatementParsersym {
+    public final static int
+      TK_auto = 24,
+      TK_break = 81,
+      TK_case = 82,
+      TK_char = 36,
+      TK_const = 8,
+      TK_continue = 83,
+      TK_default = 84,
+      TK_do = 85,
+      TK_double = 37,
+      TK_else = 86,
+      TK_enum = 58,
+      TK_extern = 25,
+      TK_float = 38,
+      TK_for = 87,
+      TK_goto = 88,
+      TK_if = 89,
+      TK_inline = 26,
+      TK_int = 39,
+      TK_long = 40,
+      TK_register = 27,
+      TK_restrict = 9,
+      TK_return = 90,
+      TK_short = 41,
+      TK_signed = 42,
+      TK_sizeof = 15,
+      TK_static = 23,
+      TK_struct = 59,
+      TK_switch = 91,
+      TK_typedef = 28,
+      TK_union = 60,
+      TK_unsigned = 43,
+      TK_void = 44,
+      TK_volatile = 10,
+      TK_while = 92,
+      TK__Bool = 45,
+      TK__Complex = 46,
+      TK__Imaginary = 47,
+      TK_integer = 16,
+      TK_floating = 17,
+      TK_charconst = 18,
+      TK_stringlit = 19,
+      TK_identifier = 1,
+      TK_Completion = 4,
+      TK_EndOfCompletion = 5,
+      TK_Invalid = 93,
+      TK_LeftBracket = 11,
+      TK_LeftParen = 2,
+      TK_LeftBrace = 22,
+      TK_Dot = 48,
+      TK_Arrow = 66,
+      TK_PlusPlus = 13,
+      TK_MinusMinus = 14,
+      TK_And = 12,
+      TK_Star = 3,
+      TK_Plus = 6,
+      TK_Minus = 7,
+      TK_Tilde = 20,
+      TK_Bang = 21,
+      TK_Slash = 49,
+      TK_Percent = 50,
+      TK_RightShift = 31,
+      TK_LeftShift = 32,
+      TK_LT = 51,
+      TK_GT = 52,
+      TK_LE = 53,
+      TK_GE = 54,
+      TK_EQ = 61,
+      TK_NE = 62,
+      TK_Caret = 63,
+      TK_Or = 64,
+      TK_AndAnd = 65,
+      TK_OrOr = 67,
+      TK_Question = 68,
+      TK_Colon = 55,
+      TK_DotDotDot = 33,
+      TK_Assign = 56,
+      TK_StarAssign = 69,
+      TK_SlashAssign = 70,
+      TK_PercentAssign = 71,
+      TK_PlusAssign = 72,
+      TK_MinusAssign = 73,
+      TK_RightShiftAssign = 74,
+      TK_LeftShiftAssign = 75,
+      TK_AndAssign = 76,
+      TK_CaretAssign = 77,
+      TK_OrAssign = 78,
+      TK_Comma = 30,
+      TK_RightBracket = 34,
+      TK_RightParen = 29,
+      TK_RightBrace = 35,
+      TK_SemiColon = 57,
+      TK_ERROR_TOKEN = 79,
+      TK_EOF_TOKEN = 80;
+
+      public final static String orderedTerminalSymbols[] = {
+                 "",
+                 "identifier",
+                 "LeftParen",
+                 "Star",
+                 "Completion",
+                 "EndOfCompletion",
+                 "Plus",
+                 "Minus",
+                 "const",
+                 "restrict",
+                 "volatile",
+                 "LeftBracket",
+                 "And",
+                 "PlusPlus",
+                 "MinusMinus",
+                 "sizeof",
+                 "integer",
+                 "floating",
+                 "charconst",
+                 "stringlit",
+                 "Tilde",
+                 "Bang",
+                 "LeftBrace",
+                 "static",
+                 "auto",
+                 "extern",
+                 "inline",
+                 "register",
+                 "typedef",
+                 "RightParen",
+                 "Comma",
+                 "RightShift",
+                 "LeftShift",
+                 "DotDotDot",
+                 "RightBracket",
+                 "RightBrace",
+                 "char",
+                 "double",
+                 "float",
+                 "int",
+                 "long",
+                 "short",
+                 "signed",
+                 "unsigned",
+                 "void",
+                 "_Bool",
+                 "_Complex",
+                 "_Imaginary",
+                 "Dot",
+                 "Slash",
+                 "Percent",
+                 "LT",
+                 "GT",
+                 "LE",
+                 "GE",
+                 "Colon",
+                 "Assign",
+                 "SemiColon",
+                 "enum",
+                 "struct",
+                 "union",
+                 "EQ",
+                 "NE",
+                 "Caret",
+                 "Or",
+                 "AndAnd",
+                 "Arrow",
+                 "OrOr",
+                 "Question",
+                 "StarAssign",
+                 "SlashAssign",
+                 "PercentAssign",
+                 "PlusAssign",
+                 "MinusAssign",
+                 "RightShiftAssign",
+                 "LeftShiftAssign",
+                 "AndAssign",
+                 "CaretAssign",
+                 "OrAssign",
+                 "ERROR_TOKEN",
+                 "EOF_TOKEN",
+                 "break",
+                 "case",
+                 "continue",
+                 "default",
+                 "do",
+                 "else",
+                 "for",
+                 "goto",
+                 "if",
+                 "return",
+                 "switch",
+                 "while",
+                 "Invalid"
+             };
+
+    public final static boolean isValidForParser = true;
+}

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/internal/core/dom/lrparser/c99/C99NoCastExpressionParsersym.java

@@ -0,0 +1,210 @@
+/*******************************************************************************
+* Copyright (c) 2006, 2008 IBM Corporation and others.
+* All rights reserved. This program and the accompanying materials
+* are made available under the terms of the Eclipse Public License v1.0
+* which accompanies this distribution, and is available at
+* http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*     IBM Corporation - initial API and implementation
+*********************************************************************************/
+
+// This file was generated by LPG
+
+package org.eclipse.cdt.internal.core.dom.lrparser.c99;
+
+public interface C99NoCastExpressionParsersym {
+    public final static int
+      TK_auto = 24,
+      TK_break = 81,
+      TK_case = 82,
+      TK_char = 36,
+      TK_const = 6,
+      TK_continue = 83,
+      TK_default = 84,
+      TK_do = 85,
+      TK_double = 37,
+      TK_else = 86,
+      TK_enum = 57,
+      TK_extern = 25,
+      TK_float = 38,
+      TK_for = 87,
+      TK_goto = 88,
+      TK_if = 89,
+      TK_inline = 26,
+      TK_int = 39,
+      TK_long = 40,
+      TK_register = 27,
+      TK_restrict = 7,
+      TK_return = 90,
+      TK_short = 41,
+      TK_signed = 42,
+      TK_sizeof = 15,
+      TK_static = 16,
+      TK_struct = 58,
+      TK_switch = 91,
+      TK_typedef = 28,
+      TK_union = 59,
+      TK_unsigned = 43,
+      TK_void = 44,
+      TK_volatile = 8,
+      TK_while = 92,
+      TK__Bool = 45,
+      TK__Complex = 46,
+      TK__Imaginary = 47,
+      TK_integer = 17,
+      TK_floating = 18,
+      TK_charconst = 19,
+      TK_stringlit = 20,
+      TK_identifier = 1,
+      TK_Completion = 4,
+      TK_EndOfCompletion = 5,
+      TK_Invalid = 93,
+      TK_LeftBracket = 9,
+      TK_LeftParen = 2,
+      TK_LeftBrace = 21,
+      TK_Dot = 48,
+      TK_Arrow = 66,
+      TK_PlusPlus = 13,
+      TK_MinusMinus = 14,
+      TK_And = 12,
+      TK_Star = 3,
+      TK_Plus = 10,
+      TK_Minus = 11,
+      TK_Tilde = 22,
+      TK_Bang = 23,
+      TK_Slash = 49,
+      TK_Percent = 50,
+      TK_RightShift = 31,
+      TK_LeftShift = 32,
+      TK_LT = 51,
+      TK_GT = 52,
+      TK_LE = 53,
+      TK_GE = 54,
+      TK_EQ = 60,
+      TK_NE = 61,
+      TK_Caret = 62,
+      TK_Or = 63,
+      TK_AndAnd = 64,
+      TK_OrOr = 67,
+      TK_Question = 68,
+      TK_Colon = 55,
+      TK_DotDotDot = 33,
+      TK_Assign = 56,
+      TK_StarAssign = 69,
+      TK_SlashAssign = 70,
+      TK_PercentAssign = 71,
+      TK_PlusAssign = 72,
+      TK_MinusAssign = 73,
+      TK_RightShiftAssign = 74,
+      TK_LeftShiftAssign = 75,
+      TK_AndAssign = 76,
+      TK_CaretAssign = 77,
+      TK_OrAssign = 78,
+      TK_Comma = 30,
+      TK_RightBracket = 34,
+      TK_RightParen = 29,
+      TK_RightBrace = 35,
+      TK_SemiColon = 65,
+      TK_ERROR_TOKEN = 79,
+      TK_EOF_TOKEN = 80;
+
+      public final static String orderedTerminalSymbols[] = {
+                 "",
+                 "identifier",
+                 "LeftParen",
+                 "Star",
+                 "Completion",
+                 "EndOfCompletion",
+                 "const",
+                 "restrict",
+                 "volatile",
+                 "LeftBracket",
+                 "Plus",
+                 "Minus",
+                 "And",
+                 "PlusPlus",
+                 "MinusMinus",
+                 "sizeof",
+                 "static",
+                 "integer",
+                 "floating",
+                 "charconst",
+                 "stringlit",
+                 "LeftBrace",
+                 "Tilde",
+                 "Bang",
+                 "auto",
+                 "extern",
+                 "inline",
+                 "register",
+                 "typedef",
+                 "RightParen",
+                 "Comma",
+                 "RightShift",
+                 "LeftShift",
+                 "DotDotDot",
+                 "RightBracket",
+                 "RightBrace",
+                 "char",
+                 "double",
+                 "float",
+                 "int",
+                 "long",
+                 "short",
+                 "signed",
+                 "unsigned",
+                 "void",
+                 "_Bool",
+                 "_Complex",
+                 "_Imaginary",
+                 "Dot",
+                 "Slash",
+                 "Percent",
+                 "LT",
+                 "GT",
+                 "LE",
+                 "GE",
+                 "Colon",
+                 "Assign",
+                 "enum",
+                 "struct",
+                 "union",
+                 "EQ",
+                 "NE",
+                 "Caret",
+                 "Or",
+                 "AndAnd",
+                 "SemiColon",
+                 "Arrow",
+                 "OrOr",
+                 "Question",
+                 "StarAssign",
+                 "SlashAssign",
+                 "PercentAssign",
+                 "PlusAssign",
+                 "MinusAssign",
+                 "RightShiftAssign",
+                 "LeftShiftAssign",
+                 "AndAssign",
+                 "CaretAssign",
+                 "OrAssign",
+                 "ERROR_TOKEN",
+                 "EOF_TOKEN",
+                 "break",
+                 "case",
+                 "continue",
+                 "default",
+                 "do",
+                 "else",
+                 "for",
+                 "goto",
+                 "if",
+                 "return",
+                 "switch",
+                 "while",
+                 "Invalid"
+             };
+
+    public final static boolean isValidForParser = true;
+}

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/internal/core/dom/lrparser/c99/C99Parsersym.java

@@ -15,57 +15,56 @@ package org.eclipse.cdt.internal.core.dom.lrparser.c99;
 
 public interface C99Parsersym {
     public final static int
-      TK_auto = 26,
+      TK_auto = 24,
-      TK_break = 33,
+      TK_break = 32,
-      TK_case = 34,
+      TK_case = 33,
-      TK_char = 43,
+      TK_char = 42,
-      TK_const = 21,
+      TK_const = 20,
-      TK_continue = 35,
+      TK_continue = 34,
-      TK_default = 36,
+      TK_default = 35,
-      TK_do = 37,
+      TK_do = 36,
-      TK_double = 44,
+      TK_double = 43,
-      TK_else = 80,
+      TK_else = 79,
-      TK_enum = 56,
+      TK_enum = 54,
-      TK_extern = 27,
+      TK_extern = 25,
-      TK_float = 45,
+      TK_float = 44,
-      TK_for = 28,
+      TK_for = 37,
       TK_goto = 38,
       TK_if = 39,
-      TK_inline = 29,
+      TK_inline = 26,
-      TK_int = 46,
+      TK_int = 45,
-      TK_long = 47,
+      TK_long = 46,
-      TK_register = 30,
+      TK_register = 27,
-      TK_restrict = 22,
+      TK_restrict = 21,
       TK_return = 40,
-      TK_short = 48,
+      TK_short = 47,
-      TK_signed = 49,
+      TK_signed = 48,
       TK_sizeof = 12,
-      TK_static = 24,
+      TK_static = 23,
-      TK_struct = 57,
+      TK_struct = 55,
       TK_switch = 41,
-      TK_typedef = 31,
+      TK_typedef = 28,
-      TK_union = 58,
+      TK_union = 56,
-      TK_unsigned = 50,
+      TK_unsigned = 49,
-      TK_void = 51,
+      TK_void = 50,
-      TK_volatile = 23,
+      TK_volatile = 22,
-      TK_while = 32,
+      TK_while = 31,
-      TK__Bool = 52,
+      TK__Bool = 51,
-      TK__Complex = 53,
+      TK__Complex = 52,
-      TK__Imaginary = 54,
+      TK__Imaginary = 53,
       TK_integer = 13,
       TK_floating = 14,
       TK_charconst = 15,
       TK_stringlit = 16,
       TK_identifier = 2,
-      TK_TypedefName = 19,
       TK_Completion = 5,
       TK_EndOfCompletion = 3,
-      TK_Invalid = 94,
+      TK_Invalid = 93,
-      TK_LeftBracket = 42,
+      TK_LeftBracket = 29,
       TK_LeftParen = 1,
       TK_LeftBrace = 6,
-      TK_Dot = 67,
+      TK_Dot = 66,
-      TK_Arrow = 81,
+      TK_Arrow = 80,
       TK_PlusPlus = 10,
       TK_MinusMinus = 11,
       TK_And = 9,
@@ -74,41 +73,41 @@ public interface C99Parsersym {
       TK_Minus = 8,
       TK_Tilde = 17,
       TK_Bang = 18,
-      TK_Slash = 68,
+      TK_Slash = 67,
-      TK_Percent = 69,
+      TK_Percent = 68,
-      TK_RightShift = 63,
+      TK_RightShift = 62,
-      TK_LeftShift = 64,
+      TK_LeftShift = 63,
-      TK_LT = 70,
+      TK_LT = 69,
-      TK_GT = 71,
+      TK_GT = 70,
-      TK_LE = 72,
+      TK_LE = 71,
-      TK_GE = 73,
+      TK_GE = 72,
-      TK_EQ = 75,
+      TK_EQ = 74,
-      TK_NE = 76,
+      TK_NE = 75,
-      TK_Caret = 77,
+      TK_Caret = 76,
-      TK_Or = 78,
+      TK_Or = 77,
-      TK_AndAnd = 79,
+      TK_AndAnd = 78,
-      TK_OrOr = 82,
+      TK_OrOr = 81,
-      TK_Question = 83,
+      TK_Question = 82,
       TK_Colon = 59,
-      TK_DotDotDot = 65,
+      TK_DotDotDot = 64,
-      TK_Assign = 62,
+      TK_Assign = 61,
-      TK_StarAssign = 84,
+      TK_StarAssign = 83,
-      TK_SlashAssign = 85,
+      TK_SlashAssign = 84,
-      TK_PercentAssign = 86,
+      TK_PercentAssign = 85,
-      TK_PlusAssign = 87,
+      TK_PlusAssign = 86,
-      TK_MinusAssign = 88,
+      TK_MinusAssign = 87,
-      TK_RightShiftAssign = 89,
+      TK_RightShiftAssign = 88,
-      TK_LeftShiftAssign = 90,
+      TK_LeftShiftAssign = 89,
-      TK_AndAssign = 91,
+      TK_AndAssign = 90,
-      TK_CaretAssign = 92,
+      TK_CaretAssign = 91,
-      TK_OrAssign = 93,
+      TK_OrAssign = 92,
-      TK_Comma = 55,
+      TK_Comma = 57,
-      TK_RightBracket = 66,
+      TK_RightBracket = 65,
-      TK_RightParen = 61,
+      TK_RightParen = 58,
       TK_RightBrace = 60,
-      TK_SemiColon = 20,
+      TK_SemiColon = 19,
-      TK_ERROR_TOKEN = 25,
+      TK_ERROR_TOKEN = 30,
-      TK_EOF_TOKEN = 74;
+      TK_EOF_TOKEN = 73;
 
       public final static String orderedTerminalSymbols[] = {
                  "",
@@ -130,30 +129,29 @@ public interface C99Parsersym {
                  "stringlit",
                  "Tilde",
                  "Bang",
-                 "TypedefName",
                  "SemiColon",
                  "const",
                  "restrict",
                  "volatile",
                  "static",
-                 "ERROR_TOKEN",
                  "auto",
                  "extern",
-                 "for",
                  "inline",
                  "register",
                  "typedef",
+                 "LeftBracket",
+                 "ERROR_TOKEN",
                  "while",
                  "break",
                  "case",
                  "continue",
                  "default",
                  "do",
+                 "for",
                  "goto",
                  "if",
                  "return",
                  "switch",
-                 "LeftBracket",
                  "char",
                  "double",
                  "float",
@@ -166,13 +164,13 @@ public interface C99Parsersym {
                  "_Bool",
                  "_Complex",
                  "_Imaginary",
-                 "Comma",
                  "enum",
                  "struct",
                  "union",
+                 "Comma",
+                 "RightParen",
                  "Colon",
                  "RightBrace",
-                 "RightParen",
                  "Assign",
                  "RightShift",
                  "LeftShift",

lrparser/org.eclipse.cdt.core.lrparser/src/org/eclipse/cdt/internal/core/dom/lrparser/c99/C99SizeofExpressionParsersym.java

@@ -0,0 +1,210 @@
+/*******************************************************************************
+* Copyright (c) 2006, 2008 IBM Corporation and others.
+* All rights reserved. This program and the accompanying materials
+* are made available under the terms of the Eclipse Public License v1.0
+* which accompanies this distribution, and is available at
+* http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*     IBM Corporation - initial API and implementation
+*********************************************************************************/
+
+// This file was generated by LPG
+
+package org.eclipse.cdt.internal.core.dom.lrparser.c99;
+
+public interface C99SizeofExpressionParsersym {
+    public final static int
+      TK_auto = 24,
+      TK_break = 81,
+      TK_case = 82,
+      TK_char = 36,
+      TK_const = 6,
+      TK_continue = 83,
+      TK_default = 84,
+      TK_do = 85,
+      TK_double = 37,
+      TK_else = 86,
+      TK_enum = 57,
+      TK_extern = 25,
+      TK_float = 38,
+      TK_for = 87,
+      TK_goto = 88,
+      TK_if = 89,
+      TK_inline = 26,
+      TK_int = 39,
+      TK_long = 40,
+      TK_register = 27,
+      TK_restrict = 7,
+      TK_return = 90,
+      TK_short = 41,
+      TK_signed = 42,
+      TK_sizeof = 15,
+      TK_static = 22,
+      TK_struct = 58,
+      TK_switch = 91,
+      TK_typedef = 28,
+      TK_union = 59,
+      TK_unsigned = 43,
+      TK_void = 44,
+      TK_volatile = 8,
+      TK_while = 92,
+      TK__Bool = 45,
+      TK__Complex = 46,
+      TK__Imaginary = 47,
+      TK_integer = 16,
+      TK_floating = 17,
+      TK_charconst = 18,
+      TK_stringlit = 19,
+      TK_identifier = 1,
+      TK_Completion = 4,
+      TK_EndOfCompletion = 5,
+      TK_Invalid = 93,
+      TK_LeftBracket = 9,
+      TK_LeftParen = 2,
+      TK_LeftBrace = 23,
+      TK_Dot = 48,
+      TK_Arrow = 66,
+      TK_PlusPlus = 13,
+      TK_MinusMinus = 14,
+      TK_And = 12,
+      TK_Star = 3,
+      TK_Plus = 10,
+      TK_Minus = 11,
+      TK_Tilde = 20,
+      TK_Bang = 21,
+      TK_Slash = 49,
+      TK_Percent = 50,
+      TK_RightShift = 31,
+      TK_LeftShift = 32,
+      TK_LT = 51,
+      TK_GT = 52,
+      TK_LE = 53,
+      TK_GE = 54,
+      TK_EQ = 60,
+      TK_NE = 61,
+      TK_Caret = 62,
+      TK_Or = 63,
+      TK_AndAnd = 64,
+      TK_OrOr = 67,
+      TK_Question = 68,
+      TK_Colon = 55,
+      TK_DotDotDot = 33,
+      TK_Assign = 56,
+      TK_StarAssign = 69,
+      TK_SlashAssign = 70,
+      TK_PercentAssign = 71,
+      TK_PlusAssign = 72,
+      TK_MinusAssign = 73,
+      TK_RightShiftAssign = 74,
+      TK_LeftShiftAssign = 75,
+      TK_AndAssign = 76,
+      TK_CaretAssign = 77,
+      TK_OrAssign = 78,
+      TK_Comma = 30,
+      TK_RightBracket = 34,
+      TK_RightParen = 29,
+      TK_RightBrace = 35,
+      TK_SemiColon = 65,
+      TK_ERROR_TOKEN = 79,
+      TK_EOF_TOKEN = 80;
+
+      public final static String orderedTerminalSymbols[] = {
+                 "",
+                 "identifier",
+                 "LeftParen",
+                 "Star",
+                 "Completion",
+                 "EndOfCompletion",
+                 "const",
+                 "restrict",
+                 "volatile",
+                 "LeftBracket",
+                 "Plus",
+                 "Minus",
+                 "And",
+                 "PlusPlus",
+                 "MinusMinus",
+                 "sizeof",
+                 "integer",
+                 "floating",
+                 "charconst",
+                 "stringlit",
+                 "Tilde",
+                 "Bang",
+                 "static",
+                 "LeftBrace",
+                 "auto",
+                 "extern",
+                 "inline",
+                 "register",
+                 "typedef",
+                 "RightParen",
+                 "Comma",
+                 "RightShift",
+                 "LeftShift",
+                 "DotDotDot",
+                 "RightBracket",
+                 "RightBrace",
+                 "char",
+                 "double",
+                 "float",
+                 "int",
+                 "long",
+                 "short",
+                 "signed",
+                 "unsigned",
+                 "void",
+                 "_Bool",
+                 "_Complex",
+                 "_Imaginary",
+                 "Dot",
+                 "Slash",
+                 "Percent",
+                 "LT",
+                 "GT",
+                 "LE",
+                 "GE",
+                 "Colon",
+                 "Assign",
+                 "enum",
+                 "struct",
+                 "union",
+                 "EQ",
+                 "NE",
+                 "Caret",
+                 "Or",
+                 "AndAnd",
+                 "SemiColon",
+                 "Arrow",
+                 "OrOr",
+                 "Question",
+                 "StarAssign",
+                 "SlashAssign",
+                 "PercentAssign",
+                 "PlusAssign",
+                 "MinusAssign",
+                 "RightShiftAssign",
+                 "LeftShiftAssign",
+                 "AndAssign",
+                 "CaretAssign",
+                 "OrAssign",
+                 "ERROR_TOKEN",
+                 "EOF_TOKEN",
+                 "break",
+                 "case",
+                 "continue",
+                 "default",
+                 "do",
+                 "else",
+                 "for",
+                 "goto",
+                 "if",
+                 "return",
+                 "switch",
+                 "while",
+                 "Invalid"
+             };
+
+    public final static boolean isValidForParser = true;
+}