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package org.checkerframework.dataflow.cfg.node;
import com.sun.source.tree.Tree.Kind;
import com.sun.source.tree.UnaryTree;
import org.checkerframework.dataflow.util.HashCodeUtils;
/**
* A node for the unary minus operation:
*
* <pre>
* - <em>expression</em>
* </pre>
*
* @author Stefan Heule
* @author Charlie Garrett
*/
public class NumericalMinusNode extends UnaryOperationNode {
public NumericalMinusNode(UnaryTree tree, Node operand) {
super(tree, operand);
assert tree.getKind() == Kind.UNARY_MINUS;
}
@Override
public <R, P> R accept(NodeVisitor<R, P> visitor, P p) {
return visitor.visitNumericalMinus(this, p);
}
@Override
public String toString() {
return "(- " + getOperand() + ")";
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof NumericalMinusNode)) {
return false;
}
NumericalMinusNode other = (NumericalMinusNode) obj;
return getOperand().equals(other.getOperand());
}
@Override
public int hashCode() {
return HashCodeUtils.hash(getOperand());
}
}
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