org.checkerframework.dataflow.cfg.node.VariableDeclarationNode 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.VariableTree;
import java.util.Collection;
import java.util.Collections;
import java.util.Objects;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.checkerframework.javacutil.TreeUtils;

/**
 * A node for a variable declaration, including local variables and fields:
 *
 *  *   modifier type identifier;
 * 
 *
 * Note: Does not have an initializer block, as that will be translated to a separate {@link
 * AssignmentNode}.
 */
public class VariableDeclarationNode extends Node {

  protected final VariableTree tree;
  protected final String name;

  // TODO: make modifier accessible

  public VariableDeclarationNode(VariableTree t) {
    super(TreeUtils.typeOf(t));
    tree = t;
    name = tree.getName().toString();
  }

  public String getName() {
    return name;
  }

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

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

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

  @Override
  public boolean equals(@Nullable Object obj) {
    if (!(obj instanceof VariableDeclarationNode)) {
      return false;
    }
    VariableDeclarationNode other = (VariableDeclarationNode) obj;
    return getName().equals(other.getName());
  }

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

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