Copyright (c) 2000, 2010 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 Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2010 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 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;
	}

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

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

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

	@Override
	public int typeID() {
		return T_boolean;
	}

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

	@Override
	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;
	}
}