org.checkerframework.dataflow.cfg.node.BooleanLiteralNode 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: 3.44.0

Show newest version

package org.checkerframework.dataflow.cfg.node;

import com.sun.source.tree.LiteralTree;
import com.sun.source.tree.Tree;
import java.util.Collection;
import java.util.Collections;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A node for a boolean literal:
 *
 *  *   true
 *   false
 * 
 */
public class BooleanLiteralNode extends ValueLiteralNode {

  /**
   * Create a new BooleanLiteralNode.
   *
   * @param t the tree for the literal value
   */
  public BooleanLiteralNode(LiteralTree t) {
    super(t);
    assert t.getKind() == Tree.Kind.BOOLEAN_LITERAL;
  }

  @Override
  public Boolean getValue() {
    return (Boolean) tree.getValue();
  }

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

  @Override
  public boolean equals(@Nullable Object obj) {
    // test that obj is a BooleanLiteralNode
    if (!(obj instanceof BooleanLiteralNode)) {
      return false;
    }
    // super method compares values
    return super.equals(obj);
  }

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