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 StringConstant extends Constant {

	private String value;

	public static Constant fromValue(String value) {
		return new StringConstant(value);
	}

	private StringConstant(String value) {
		this.value = value;
	}

	@Override
	public String stringValue() {
		// spec 15.17.11

		// the next line do not go into the toString() send....!
		return this.value;
		/*
		 * String s = value.toString() ; if (s == null) return "null"; else return s;
		 */
	}

	@Override
	public String toString() {
		return "(String)\"" + this.value + "\""; //$NON-NLS-2$ //$NON-NLS-1$
	}

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

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((this.value == null) ? 0 : this.value.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		StringConstant other = (StringConstant) obj;
		if (this.value == null) {
			return other.value == null;
		} else {
			return this.value.equals(other.value);
		}
	}
}