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/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.codehaus.groovy.runtime.typehandling;

/**
 * Long NumberMath operations
 * 
 * @author Steve Goetze
 */
public final class LongMath extends NumberMath {

    public static final LongMath INSTANCE = new LongMath();

    private LongMath() {}
                    
    protected Number absImpl(Number number) {
        return Long.valueOf(Math.abs(number.longValue()));
    }
    
    public Number addImpl(Number left, Number right) {
        return Long.valueOf(left.longValue() + right.longValue());
    }

    public Number subtractImpl(Number left, Number right) {
        return Long.valueOf(left.longValue() - right.longValue());
    }

    public Number multiplyImpl(Number left, Number right) {
        return Long.valueOf(left.longValue() * right.longValue());
    }

    public Number divideImpl(Number left, Number right) {
        return BigDecimalMath.INSTANCE.divideImpl(left, right);
    }
    
    public int compareToImpl(Number left, Number right) {
        long leftVal = left.longValue();
        long rightVal = right.longValue();
        return (leftVal> right.longValue());
    }

    protected Number rightShiftUnsignedImpl(Number left, Number right) {
        return Long.valueOf(left.longValue() >>> right.longValue());
    }

    protected Number bitAndImpl(Number left, Number right) {
        return Long.valueOf(left.longValue() & right.longValue());
    }
}