dataflow.src.org.checkerframework.dataflow.cfg.node.ConditionalAndNode Maven / Gradle / Ivy
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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 java.util.Collection;
import java.util.LinkedList;
import org.checkerframework.dataflow.util.HashCodeUtils;
import org.checkerframework.javacutil.InternalUtils;
import com.sun.source.tree.BinaryTree;
import com.sun.source.tree.Tree.Kind;
/**
* A node for a conditional and expression:
*
*
* expression && expression
*
*
* @author Stefan Heule
* @author Charlie Garrett
*
*/
public class ConditionalAndNode extends Node {
protected BinaryTree tree;
protected Node lhs;
protected Node rhs;
public ConditionalAndNode(BinaryTree tree, Node lhs, Node rhs) {
super(InternalUtils.typeOf(tree));
assert tree.getKind().equals(Kind.CONDITIONAL_AND);
this.tree = tree;
this.lhs = lhs;
this.rhs = rhs;
}
public Node getLeftOperand() {
return lhs;
}
public Node getRightOperand() {
return rhs;
}
@Override
public BinaryTree getTree() {
return tree;
}
@Override
public R accept(NodeVisitor visitor, P p) {
return visitor.visitConditionalAnd(this, p);
}
@Override
public String toString() {
return "(" + getLeftOperand() + " && " + getRightOperand() + ")";
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof ConditionalAndNode)) {
return false;
}
ConditionalAndNode other = (ConditionalAndNode) 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;
}
}