SLLessThanNode.java

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package com.oracle.truffle.sl.nodes.expression;

import java.math.BigInteger;

import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.nodes.NodeInfo;
import com.oracle.truffle.sl.nodes.SLBinaryNode;

/**
 * This class is similar to the extensively documented {@link SLAddNode}. The only difference: the
 * specialized methods return {@code boolean} instead of the input types.
 */
@NodeInfo(shortName = "<")
public abstract class SLLessThanNode extends SLBinaryNode {

    @Specialization
    protected boolean lessThan(long left, long right) {
        return left < right;
    }

    @Specialization
    @TruffleBoundary
    protected boolean lessThan(BigInteger left, BigInteger right) {
        return left.compareTo(right) < 0;
    }
}