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The Checker Framework enhances Java's type system to
make it more powerful and useful. This lets software developers
detect and prevent errors in their Java programs.
The Checker Framework includes compiler plug-ins ("checkers")
that find bugs or verify their absence. It also permits you to
write your own compiler plug-ins.
package org.checkerframework.dataflow.cfg.node;
import com.sun.source.tree.Tree;
import com.sun.source.tree.Tree.Kind;
import java.util.Collection;
import java.util.LinkedList;
import org.checkerframework.dataflow.util.HashCodeUtils;
import org.checkerframework.javacutil.InternalUtils;
/**
* A node for the bitwise or logical (single bit) xor operation:
*
*
* expression ^ expression
*
*
* @author Stefan Heule
* @author Charlie Garrett
*
*/
public class BitwiseXorNode extends Node {
protected Tree tree;
protected Node left;
protected Node right;
public BitwiseXorNode(Tree tree, Node left, Node right) {
super(InternalUtils.typeOf(tree));
assert tree.getKind() == Kind.XOR;
this.tree = tree;
this.left = left;
this.right = right;
}
public Node getLeftOperand() {
return left;
}
public Node getRightOperand() {
return right;
}
@Override
public Tree getTree() {
return tree;
}
@Override
public R accept(NodeVisitor visitor, P p) {
return visitor.visitBitwiseXor(this, p);
}
@Override
public String toString() {
return "(" + getLeftOperand() + " ^ " + getRightOperand() + ")";
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof BitwiseXorNode)) {
return false;
}
BitwiseXorNode other = (BitwiseXorNode) obj;
return getLeftOperand().equals(other.getLeftOperand())
&& getRightOperand().equals(other.getRightOperand());
}
@Override
public int hashCode() {
return HashCodeUtils.hash(getLeftOperand(), getRightOperand());
}
@Override
public Collection getOperands() {
LinkedList list = new LinkedList();
list.add(getLeftOperand());
list.add(getRightOperand());
return list;
}
}