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

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

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

  public AbstractVariable prefix;
  public Expression var;

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

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

  /**
   * Return the name of the variable.
   * @return the name of the prefix variable
   */
  public String getName() {
    return prefix.getName();
  }

  /**
   * Get the variables from outside (parameters, globals ...)
   * @return the variables from outside
   */
  public List getOutsideVariable() {
    return new ArrayList(1);
  }

  /**
   * get the modified variables.
   * @return the variables from we change value
   */
  public List getModifiedVariable() {
    final List list = prefix.getModifiedVariable();
    if (var != null) {
      list.addAll(var.getModifiedVariable());
    }
    return list;
  }

  /**
   * Get the variables used.
   * @return the variables used
   */
  public List getUsedVariable() {
    final List list = prefix.getUsedVariable();
    if (var != null) {
      list.addAll(var.getUsedVariable());
    }
    return list;
  }
}