/*******************************************************************************
 * Copyright (c) 2004, 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 - Initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;

import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTLinkageSpecification;
import org.eclipse.cdt.core.parser.util.ArrayUtil;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;

/**
 * @author jcamelon
 */
public class CPPASTLinkageSpecification extends CPPASTNode implements
        ICPPASTLinkageSpecification, IASTAmbiguityParent {

    private String literal;

    public CPPASTLinkageSpecification() {
	}

	public CPPASTLinkageSpecification(String literal) {
		this.literal = literal;
	}

	public String getLiteral() {
        return literal;
    }

    public void setLiteral(String value) {
        this.literal = value;
    }

    public IASTDeclaration [] getDeclarations() {
        if( declarations == null ) return IASTDeclaration.EMPTY_DECLARATION_ARRAY;
        return (IASTDeclaration[]) ArrayUtil.trim( IASTDeclaration.class, declarations );
    }

    public void addDeclaration(IASTDeclaration declaration) {
    	declarations = (IASTDeclaration[]) ArrayUtil.append( IASTDeclaration.class, declarations, declaration );
    	if(declaration != null) {
    		declaration.setParent(this);
			declaration.setPropertyInParent(OWNED_DECLARATION);
    	}
    }

    private IASTDeclaration [] declarations = new IASTDeclaration[4];

    @Override
	public boolean accept( ASTVisitor action ){
        if( action.shouldVisitDeclarations ){
		    switch( action.visit( this ) ){
	            case ASTVisitor.PROCESS_ABORT : return false;
	            case ASTVisitor.PROCESS_SKIP  : return true;
	            default : break;
	        }
		}
        
        IASTDeclaration [] decls = getDeclarations();
        for( int i = 0; i < decls.length; i++ )
            if( !decls[i].accept( action ) ) return false;
        
        if( action.shouldVisitDeclarations ){
		    switch( action.leave( this ) ){
	            case ASTVisitor.PROCESS_ABORT : return false;
	            case ASTVisitor.PROCESS_SKIP  : return true;
	            default : break;
	        }
		}
        
        return true;
    }

    public void replace(IASTNode child, IASTNode other) {
        if( declarations == null ) return;
        for( int i = 0; i < declarations.length; ++i )
        {
           if( declarations[i] == null ) continue;
           if( declarations[i] == child )
           {
               other.setParent( child.getParent() );
               other.setPropertyInParent( child.getPropertyInParent() );
               declarations[i] = (IASTDeclaration) other;
           }
        }
    }
}
