/*
 * 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;

/**
 * BigInteger NumberMath operations
 * 
 * @author Steve Goetze
 */
public final class BigIntegerMath extends NumberMath {

    public static final BigIntegerMath INSTANCE = new BigIntegerMath();
    
    private BigIntegerMath() {}

    protected Number absImpl(Number number) {
        return toBigInteger(number).abs();
    }
    
    public Number addImpl(Number left, Number right) {
        return toBigInteger(left).add(toBigInteger(right));
    }
    public Number subtractImpl(Number left, Number right) {
        return toBigInteger(left).subtract(toBigInteger(right));
    }

    public Number multiplyImpl(Number left, Number right) {
        return toBigInteger(left).multiply(toBigInteger(right));
    }

    public Number divideImpl(Number left, Number right) {
        return BigDecimalMath.INSTANCE.divideImpl(left, right);
    }
    
    public int compareToImpl(Number left, Number right) {
        return toBigInteger(left).compareTo(toBigInteger(right));
    }

    protected Number intdivImpl(Number left, Number right) {
        return toBigInteger(left).divide(toBigInteger(right));
    }
    
    protected Number modImpl(Number left, Number right) {
        return toBigInteger(left).mod(toBigInteger(right));
    }
    
    protected Number unaryMinusImpl(Number left) {
        return toBigInteger(left).negate();
    }

    protected Number bitwiseNegateImpl(Number left) {
        return toBigInteger(left).not();
    }

    protected Number orImpl(Number left, Number right) {
        return toBigInteger(left).or(toBigInteger(right));
    }

    protected Number andImpl(Number left, Number right) {
        return toBigInteger(left).and(toBigInteger(right));
    }
    
    protected Number xorImpl(Number left, Number right) {
        return toBigInteger(left).xor(toBigInteger(right));
    }
}