/*******************************************************************************
 * Copyright (c) 2005, 2013 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *    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.IASTDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;

/**
 * @author jcamelon
 */
public class CASTParameterDeclaration extends ASTNode implements IASTParameterDeclaration, IASTAmbiguityParent {

	private IASTDeclSpecifier declSpec;
	private IASTDeclarator declarator;

	public CASTParameterDeclaration() {
	}

	public CASTParameterDeclaration(IASTDeclSpecifier declSpec, IASTDeclarator declarator) {
		setDeclSpecifier(declSpec);
		setDeclarator(declarator);
	}

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

	@Override
	public CASTParameterDeclaration copy(CopyStyle style) {
		CASTParameterDeclaration copy = new CASTParameterDeclaration();
		copy.setDeclSpecifier(declSpec == null ? null : declSpec.copy(style));
		copy.setDeclarator(declarator == null ? null : declarator.copy(style));
		return copy(copy, style);
	}

	@Override
	public IASTDeclSpecifier getDeclSpecifier() {
		return declSpec;
	}

	@Override
	public IASTDeclarator getDeclarator() {
		return declarator;
	}

	@Override
	public void setDeclSpecifier(IASTDeclSpecifier declSpec) {
		assertNotFrozen();
		this.declSpec = declSpec;
		if (declSpec != null) {
			declSpec.setParent(this);
			declSpec.setPropertyInParent(DECL_SPECIFIER);
		}
	}

	@Override
	public void setDeclarator(IASTDeclarator declarator) {
		assertNotFrozen();
		this.declarator = declarator;
		if (declarator != null) {
			declarator.setParent(this);
			declarator.setPropertyInParent(DECLARATOR);
		}
	}

	@Override
	public boolean accept(ASTVisitor action) {
		if (action.shouldVisitParameterDeclarations) {
			switch (action.visit(this)) {
			case ASTVisitor.PROCESS_ABORT:
				return false;
			case ASTVisitor.PROCESS_SKIP:
				return true;
			default:
				break;
			}
		}

		if (declSpec != null)
			if (!declSpec.accept(action))
				return false;
		if (declarator != null)
			if (!declarator.accept(action))
				return false;
		if (action.shouldVisitParameterDeclarations) {
			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 (child == declarator) {
			other.setPropertyInParent(child.getPropertyInParent());
			other.setParent(child.getParent());
			declarator = (IASTDeclarator) other;
		}
	}
}
