/*******************************************************************************
 * Copyright (c) 2005, 2011 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:
 *    John Camelon (IBM Rational Software) - Initial API and implementation
 *    Yuan Zhang / Beth Tibbitts (IBM Research)
 *    Markus Schorn (Wind River Systems)
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;

import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTDeclarationStatement;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;

/**
 * A declaration statement.
 */
public class CASTDeclarationStatement extends ASTNode implements IASTDeclarationStatement, IASTAmbiguityParent {

    private IASTDeclaration declaration;

    
    public CASTDeclarationStatement() {
	}

	public CASTDeclarationStatement(IASTDeclaration declaration) {
		setDeclaration(declaration);
	}

	
	public CASTDeclarationStatement copy() {
		return copy(CopyStyle.withoutLocations);
	}
	
	public CASTDeclarationStatement copy(CopyStyle style) {
		CASTDeclarationStatement copy = new CASTDeclarationStatement();
		copy.setDeclaration(declaration == null ? null : declaration.copy(style));
		copy.setOffsetAndLength(this);
		if (style == CopyStyle.withLocations) {
			copy.setCopyLocation(this);
		}
		return copy;
	}

	public IASTDeclaration getDeclaration() {
        return declaration;
    }

    public void setDeclaration(IASTDeclaration declaration) {
        assertNotFrozen();
        this.declaration = declaration;
        if (declaration != null) {
			declaration.setParent(this);
			declaration.setPropertyInParent(DECLARATION);
		}
    }

    @Override
	public boolean accept( ASTVisitor action ){
        if( action.shouldVisitStatements ){
		    switch( action.visit( this ) ){
	            case ASTVisitor.PROCESS_ABORT : return false;
	            case ASTVisitor.PROCESS_SKIP  : return true;
	            default : break;
	        }
		}
        if( declaration != null ) if( !declaration.accept( action ) ) return false;
        if( action.shouldVisitStatements ){
		    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 (child == declaration) {
			other.setPropertyInParent(child.getPropertyInParent());
			other.setParent(child.getParent());
			declaration = (IASTDeclaration) other;
		}
	}
}