dataflow.src.org.checkerframework.dataflow.cfg.node.SuperNode Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of checker Show documentation

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.

There is a newer version: 3.42.0

Show newest version

package org.checkerframework.dataflow.cfg.node;

import java.util.Collection;
import java.util.Collections;

import org.checkerframework.dataflow.util.HashCodeUtils;

import org.checkerframework.javacutil.InternalUtils;

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

/**
 * A node for a reference to 'super'.
 *
 *  *   super
 * 
 *
 * @author Stefan Heule
 * @author Charlie Garrett
 *
 */
public class SuperNode extends Node {

    protected Tree tree;

    public SuperNode(Tree t) {
        super(InternalUtils.typeOf(t));
        assert t instanceof IdentifierTree
                && ((IdentifierTree) t).getName().contentEquals("super");
        tree = t;
    }

    @Override
    public Tree getTree() {
        return tree;
    }

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

    public String getName() {
        return "super";
    }

    @Override
    public String toString() {
        return getName();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null || !(obj instanceof SuperNode)) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        return HashCodeUtils.hash(getName());
    }

    @Override
    public Collection getOperands() {
        return Collections.emptyList();
    }
}