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

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

/**
 * @author Matthieu Casanova
 */
public class ArrayDeclarator extends AbstractSuffixExpression {

  public Expression prefix;
  public Expression vars;

  public ArrayDeclarator(final Expression prefix,
                         final Expression vars,
                         final int sourceEnd) {
    super(prefix.sourceStart, sourceEnd);
    this.prefix = prefix;
    this.vars = vars;
  }

  /**
   * Return the expression as String.
   * @return the expression
   */
  public String toStringExpression() {
    final StringBuffer buff = new StringBuffer(prefix.toStringExpression());
    buff.append('[');
    if (vars != null) {
      buff.append(vars.toStringExpression());
    }
    buff.append(']');
    return buff.toString();
  }

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

  /**
   * get the modified variables.
   * @return the variables from we change value
   */
  public List getModifiedVariable() {
    final ArrayList list = new ArrayList();
    list.addAll(prefix.getModifiedVariable());
    list.addAll(vars.getModifiedVariable());
    return list;
  }

  /**
   * Get the variables used.
   * @return the variables used
   */
  public List getUsedVariable() {
    final ArrayList list = new ArrayList();
    list.addAll(prefix.getUsedVariable());
    list.addAll(vars.getUsedVariable());
    return list;
  }
}