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/*******************************************************************************
 * Copyright (c) 2000, 2010 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.compiler.impl;

public class BooleanConstant extends Constant {

	private boolean value;

	private static final BooleanConstant TRUE = new BooleanConstant(true);
	private static final BooleanConstant FALSE = new BooleanConstant(false);

	public static Constant fromValue(boolean value) {
		return value ? BooleanConstant.TRUE : BooleanConstant.FALSE;
	}

	private BooleanConstant(boolean value) {
		this.value = value;
	}

	public boolean booleanValue() {
		return this.value;
	}

	public String stringValue() {
		// spec 15.17.11
		return String.valueOf(this.value);
	}

	public String toString() {
		return "(boolean)" + this.value; //$NON-NLS-1$
	}

	public int typeID() {
		return T_boolean;
	}

	public int hashCode() {
		return this.value ? 1231 : 1237;
	}

	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		// cannot be true anymore as the first test would have returned true
		return false;
	}
}