org.checkerframework.dataflow.cfg.node.UnsignedRightShiftNode Maven / Gradle / Ivy

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dataflow-shaded is a dataflow framework based on the javac compiler. It differs from the org.checkerframework:dataflow artifact in two ways. First, the packages in this artifact have been renamed to org.checkerframework.shaded.*. Second, unlike the dataflow artifact, this artifact contains the dependencies it requires.

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package org.checkerframework.dataflow.cfg.node;

import com.sun.source.tree.BinaryTree;
import com.sun.source.tree.Tree;

import org.checkerframework.checker.nullness.qual.Nullable;

import java.util.Objects;

/**
 * A node for bitwise right shift operations with zero extension:
 *
 *  *   expression >>> expression
 * 
 */
public class UnsignedRightShiftNode extends BinaryOperationNode {

    /**
     * Constructs an {@link UnsignedRightShiftNode}
     *
     * @param tree the binary tree
     * @param left the left operand
     * @param right the right operand
     */
    public UnsignedRightShiftNode(BinaryTree tree, Node left, Node right) {
        super(tree, left, right);
        assert tree.getKind() == Tree.Kind.UNSIGNED_RIGHT_SHIFT;
    }

    @Override
    public  R accept(NodeVisitor visitor, P p) {
        return visitor.visitUnsignedRightShift(this, p);
    }

    @Override
    public String toString() {
        return "(" + getLeftOperand() + " >>> " + getRightOperand() + ")";
    }

    @Override
    public boolean equals(@Nullable Object obj) {
        if (!(obj instanceof UnsignedRightShiftNode)) {
            return false;
        }
        UnsignedRightShiftNode other = (UnsignedRightShiftNode) obj;
        return getLeftOperand().equals(other.getLeftOperand())
                && getRightOperand().equals(other.getRightOperand());
    }

    @Override
    public int hashCode() {
        return Objects.hash(getLeftOperand(), getRightOperand());
    }
}