/*******************************************************************************
 * Copyright (c) 2004, 2013 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) - Initial API and implementation
 *    Markus Schorn (Wind River Systems)
 *******************************************************************************/
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.ICPPASTExplicitTemplateInstantiation;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;

/**
 * Models explicit instantiations.
 */
public class CPPASTExplicitTemplateInstantiation extends ASTNode implements
        ICPPASTExplicitTemplateInstantiation, IASTAmbiguityParent {

    private IASTDeclaration declaration;
    private int modifier;


    public CPPASTExplicitTemplateInstantiation() {
	}

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

	@Override
	public CPPASTExplicitTemplateInstantiation copy() {
		return copy(CopyStyle.withoutLocations);
	}

	@Override
	public CPPASTExplicitTemplateInstantiation copy(CopyStyle style) {
		CPPASTExplicitTemplateInstantiation copy = new CPPASTExplicitTemplateInstantiation();
		copy.setDeclaration(declaration == null ? null : declaration.copy(style));
		copy.setModifier(modifier);
		return copy(copy, style);
	}

	@Override
	public IASTDeclaration getDeclaration() {
        return declaration;
    }

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


    @Override
	public int getModifier() {
		return modifier;
	}

	@Override
	public void setModifier(int mod) {
		assertNotFrozen();
		modifier= mod;
	}

	@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;
	        }
		}

        if (declaration != null) if (!declaration.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;
    }


    @Override
	public void replace(IASTNode child, IASTNode other) {
        if (declaration == child)
        {
            other.setParent(child.getParent());
            other.setPropertyInParent(child.getPropertyInParent());
            declaration = (IASTDeclaration) other;
        }
    }
}