IntConstant.java

/*******************************************************************************
 * Copyright (c) 2000, 2009 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 IntConstant extends Constant {

	int value;

	private static final IntConstant MIN_VALUE= new IntConstant(Integer.MIN_VALUE);

	private static final IntConstant MINUS_FOUR= new IntConstant(-4);

	private static final IntConstant MINUS_THREE= new IntConstant(-3);

	private static final IntConstant MINUS_TWO= new IntConstant(-2);

	private static final IntConstant MINUS_ONE= new IntConstant(-1);

	private static final IntConstant ZERO= new IntConstant(0);

	private static final IntConstant ONE= new IntConstant(1);

	private static final IntConstant TWO= new IntConstant(2);

	private static final IntConstant THREE= new IntConstant(3);

	private static final IntConstant FOUR= new IntConstant(4);

	private static final IntConstant FIVE= new IntConstant(5);

	private static final IntConstant SIX= new IntConstant(6);

	private static final IntConstant SEVEN= new IntConstant(7);

	private static final IntConstant EIGHT= new IntConstant(8);

	private static final IntConstant NINE= new IntConstant(9);

	private static final IntConstant TEN= new IntConstant(10);

	public static Constant fromValue(int value) {
		switch (value) {
			case Integer.MIN_VALUE:
				return IntConstant.MIN_VALUE;
			case -4:
				return IntConstant.MINUS_FOUR;
			case -3:
				return IntConstant.MINUS_THREE;
			case -2:
				return IntConstant.MINUS_TWO;
			case -1:
				return IntConstant.MINUS_ONE;
			case 0:
				return IntConstant.ZERO;
			case 1:
				return IntConstant.ONE;
			case 2:
				return IntConstant.TWO;
			case 3:
				return IntConstant.THREE;
			case 4:
				return IntConstant.FOUR;
			case 5:
				return IntConstant.FIVE;
			case 6:
				return IntConstant.SIX;
			case 7:
				return IntConstant.SEVEN;
			case 8:
				return IntConstant.EIGHT;
			case 9:
				return IntConstant.NINE;
			case 10:
				return IntConstant.TEN;
		}
		return new IntConstant(value);
	}

	private IntConstant(int value) {
		this.value= value;
	}

	public byte byteValue() {
		return (byte)this.value;
	}

	public char charValue() {
		return (char)this.value;
	}

	public double doubleValue() {
		return this.value; // implicit cast to return type
	}

	public float floatValue() {
		return this.value; // implicit cast to return type
	}

	public int intValue() {
		return this.value;
	}

	public long longValue() {
		return this.value; // implicit cast to return type
	}

	public short shortValue() {
		return (short)this.value;
	}

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

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

	public int typeID() {
		return T_int;
	}
}