/*******************************************************************************
 * 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.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTTypeId;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.c.ICASTTypeIdInitializerExpression;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;

/**
 * Type id initializer expression for C, type-id { initializer }
 */
public class CASTTypeIdInitializerExpression extends ASTNode implements ICASTTypeIdInitializerExpression {
    private IASTTypeId fTypeId;
    private IASTInitializer fInitializer;

    public CASTTypeIdInitializerExpression() {
	}

	public CASTTypeIdInitializerExpression(IASTTypeId t, IASTInitializer i) {
		setTypeId(t);
		fInitializer = i;
	}

	@Override
	public IASTTypeId getTypeId() {
        return fTypeId;
    }

    @Override
	public void setTypeId(IASTTypeId typeId) {
        assertNotFrozen();
        this.fTypeId = typeId;
        if (typeId != null) {
			typeId.setParent(this);
			typeId.setPropertyInParent(TYPE_ID);
		}
    }

    @Override
	public IASTInitializer getInitializer() {
        return fInitializer;
    }

    @Override
	public void setInitializer(IASTInitializer initializer) {
        assertNotFrozen();
        this.fInitializer = initializer;
        if (initializer != null) {
			initializer.setParent(this);
			initializer.setPropertyInParent(INITIALIZER);
		}
    }

    @Override
	public boolean accept(ASTVisitor action) {
        if (action.shouldVisitExpressions) {
		    switch (action.visit(this)) {
	            case ASTVisitor.PROCESS_ABORT: return false;
	            case ASTVisitor.PROCESS_SKIP: return true;
	            default: break;
	        }
		}
        
        if (fTypeId != null && !fTypeId.accept(action)) return false;
        if (fInitializer != null && !fInitializer.accept(action)) return false;

        if (action.shouldVisitExpressions) {
		    switch (action.leave(this)) {
	            case ASTVisitor.PROCESS_ABORT: return false;
	            case ASTVisitor.PROCESS_SKIP: return true;
	            default: break;
	        }
		}
        return true;
    }

	@Override
	public final boolean isLValue() {
		return false;
	}
	
	@Override
	public ValueCategory getValueCategory() {
		return ValueCategory.PRVALUE;
	}

	@Override
	public IType getExpressionType() {
		return CVisitor.createType(getTypeId().getAbstractDeclarator());
	}

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

	@Override
	public CASTTypeIdInitializerExpression copy(CopyStyle style) {
		CASTTypeIdInitializerExpression copy = new CASTTypeIdInitializerExpression(
				fTypeId == null ? null : fTypeId.copy(style),
				fInitializer == null ? null : fInitializer.copy(style));
		return copy(copy, style);
	}
}
