/*******************************************************************************
 * Copyright (c) 2004, 2012 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:
 *     Andrew Niefer (IBM Corporation) - initial API and implementation
 *     Markus Schorn (Wind River Systems)
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;

import org.eclipse.cdt.core.dom.ILinkage;
import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier.IASTEnumerator;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IEnumerator;
import org.eclipse.cdt.core.dom.ast.IScope;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.IValue;
import org.eclipse.cdt.internal.core.dom.Linkage;
import org.eclipse.cdt.internal.core.dom.parser.ASTEnumerator;
import org.eclipse.cdt.internal.core.dom.parser.IntegralValue;
import org.eclipse.cdt.internal.core.dom.parser.ProblemBinding;
import org.eclipse.core.runtime.PlatformObject;

/**
 * C-specific binding for enumerators.
 */
public class CEnumerator extends PlatformObject implements IEnumerator {
	public static class CEnumeratorProblem extends ProblemBinding implements IEnumerator {
		public CEnumeratorProblem(IASTNode node, int id, char[] arg) {
			super(node, id, arg);
		}

		@Override
		public IValue getValue() {
			return IntegralValue.UNKNOWN;
		}
	}

	private final IASTName enumeratorName;

	public CEnumerator(IASTEnumerator enumtor) {
		this.enumeratorName = enumtor.getName();
		enumeratorName.setBinding(this);
	}

	public IASTNode getPhysicalNode() {
		return enumeratorName;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.IBinding#getName()
	 */
	@Override
	public String getName() {
		return enumeratorName.toString();
	}

	@Override
	public char[] getNameCharArray() {
		return enumeratorName.toCharArray();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.IBinding#getScope()
	 */
	@Override
	public IScope getScope() {
		return CVisitor.getContainingScope(enumeratorName.getParent());
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.IEnumerator#getType()
	 */
	@Override
	public IType getType() {
		return (IType) getOwner();
	}

	@Override
	public ILinkage getLinkage() {
		return Linkage.C_LINKAGE;
	}

	@Override
	public IBinding getOwner() {
		IASTEnumerator etor = (IASTEnumerator) enumeratorName.getParent();
		IASTEnumerationSpecifier enumSpec = (IASTEnumerationSpecifier) etor.getParent();
		return enumSpec.getName().resolveBinding();
	}

	@Override
	public IValue getValue() {
		IASTNode parent = enumeratorName.getParent();
		if (parent instanceof ASTEnumerator)
			return ((ASTEnumerator) parent).getIntegralValue();

		return IntegralValue.UNKNOWN;
	}

	@Override
	public String toString() {
		return getName();
	}
}
