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

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

/**
 * This variable declaration do not extend AbstractVariableDeclaration because
 * it could take Expression as key.
 * @author Matthieu Casanova
 */
public class ArrayVariableDeclaration extends Expression {

  public Expression key,value;

  public ArrayVariableDeclaration(final Expression key,final Expression value) {
    super(key.sourceStart, value.sourceEnd);
    this.key = key;
    this.value = value;
  }

  public ArrayVariableDeclaration(final Expression key,final int sourceEnd) {
    super(key.sourceStart, sourceEnd);
    this.key = key;
  }
  /**
   * Return the expression as String.
   * @return the expression
   */
  public String toStringExpression() {
    final StringBuffer buff = new StringBuffer();
    buff.append(key.toStringExpression());
    if (value != null) {
      buff.append(" => ");
      buff.append(value.toStringExpression());
    }
    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(key.getModifiedVariable());
    list.addAll(value.getModifiedVariable());
    return list;
  }

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