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/*******************************************************************************
* Copyright (c) 2002, 2004 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 Rational Software - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.parser.ast.complete;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.eclipse.cdt.core.parser.ISourceElementRequestor;
import org.eclipse.cdt.core.parser.ITokenDuple;
import org.eclipse.cdt.core.parser.ast.ASTNotImplementedException;
import org.eclipse.cdt.core.parser.ast.IASTExpression;
import org.eclipse.cdt.core.parser.ast.IASTInitializerClause;
import org.eclipse.cdt.core.parser.ast.IASTVariable;
import org.eclipse.cdt.internal.core.parser.Parser;
import org.eclipse.cdt.internal.core.parser.ast.EmptyIterator;
/**
* @author jcamelon
*
*/
public class ASTInitializerClause implements IASTInitializerClause
{
private List references = new ArrayList();
private IASTVariable ownerDeclaration = null;
private final IASTInitializerClause.Kind kind;
private final IASTExpression assignmentExpression;
private final List initializerClauses;
private final List designators;
/**
* @param kind
* @param assignmentExpression
* @param initializerClauses
* @param designators
*/
public ASTInitializerClause(Kind kind, IASTExpression assignmentExpression, List initializerClauses, List designators)
{
this.kind = kind;
this.assignmentExpression = assignmentExpression;
this.initializerClauses = initializerClauses;
this.designators = designators;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#getKind()
*/
public Kind getKind() {
return kind;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#getInitializerList()
*/
public Iterator getInitializers() {
if( initializerClauses == null )
return EmptyIterator.EMPTY_ITERATOR;
return initializerClauses.iterator();
}
public List getInitializersList(){
return ( initializerClauses != null ) ? initializerClauses : Collections.EMPTY_LIST;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#getAssigmentExpression()
*/
public IASTExpression getAssigmentExpression() {
return assignmentExpression;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ISourceElementCallbackDelegate#acceptElement(org.eclipse.cdt.core.parser.ISourceElementRequestor)
*/
public void acceptElement(ISourceElementRequestor requestor)
{
List initializers = getInitializersList();
int size = initializers.size();
for( int i = 0; i < size; i++ )
((IASTInitializerClause)initializers.get(i)).acceptElement(requestor);
if( assignmentExpression != null )
assignmentExpression.acceptElement( requestor );
Parser.processReferences(references, requestor);
references = null;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ISourceElementCallbackDelegate#enterScope(org.eclipse.cdt.core.parser.ISourceElementRequestor)
*/
public void enterScope(ISourceElementRequestor requestor)
{
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ISourceElementCallbackDelegate#exitScope(org.eclipse.cdt.core.parser.ISourceElementRequestor)
*/
public void exitScope(ISourceElementRequestor requestor)
{
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#getDesignators()
*/
public Iterator getDesignators()
{
return designators.iterator();
}
public List getDesignatorList(){
return designators;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#setOwnerDeclaration(org.eclipse.cdt.core.parser.ast.IASTDeclaration)
*/
public void setOwnerVariableDeclaration(IASTVariable declaration)
{
ownerDeclaration = declaration;
Iterator subInitializers = getInitializers();
while( subInitializers.hasNext() )
((IASTInitializerClause)subInitializers.next()).setOwnerVariableDeclaration(declaration);
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#getOwnerDeclaration()
*/
public IASTVariable getOwnerVariableDeclaration()
{
return ownerDeclaration;
}
public List getReferences()
{
return references;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.parser.ast.IASTInitializerClause#findExpressionForDuple(org.eclipse.cdt.core.parser.ITokenDuple)
*/
public IASTExpression findExpressionForDuple(ITokenDuple finalDuple) throws ASTNotImplementedException {
if( kind == IASTInitializerClause.Kind.EMPTY ) return null;
if( kind == IASTInitializerClause.Kind.ASSIGNMENT_EXPRESSION ||
kind == Kind.DESIGNATED_ASSIGNMENT_EXPRESSION )
return ((ASTExpression)assignmentExpression).findNewDescriptor( finalDuple );
Iterator i = getInitializers();
while( i.hasNext() )
{
IASTInitializerClause clause = (IASTInitializerClause) i.next();
IASTExpression e = clause.findExpressionForDuple(finalDuple);
if( e != null ) return e;
}
return null;
}
}
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