package net.sourceforge.phpdt.internal.compiler.ast;

import java.util.List;
import java.util.ArrayList;

/**
 * An empty statement.
 * @author Matthieu Casanova
 */
public class EmptyStatement extends Statement {

  public EmptyStatement(final int sourceStart, final int sourceEnd) {
    super(sourceStart, sourceEnd);
  }

  public String toString(final int tab) {
    return tabString(tab) + ";"; //$NON-NLS-1$
  }

  /**
   * Get the variables from outside (parameters, globals ...)
   * @return an empty list
   */
  public List getOutsideVariable() {
    return new ArrayList();
  }

  /**
   * get the modified variables.
   * @return an empty list
   */
  public List getModifiedVariable() {
    return new ArrayList();
  }

  /**
   * Get the variables used.
   * @return an empty list
   */
  public List getUsedVariable() {
    return new ArrayList();
  }
}