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

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

/**
 * Superclass of case statement that we can find in a switch.
 * @author Matthieu Casanova
 */
public abstract class AbstractCase extends Statement {

  /** The statements in the case. */
  public Statement[] statements;

  /**
   * Create a case statement
   * @param statements the statements array
   * @param sourceStart the beginning source offset
   * @param sourceEnd the ending offset
   */
  public AbstractCase(final Statement[] statements,
                      final int sourceStart,
                      final int sourceEnd) {
    super(sourceStart, sourceEnd);
    this.statements = statements;
  }


  /**
   * Get the variables from outside (parameters, globals ...)
   * @return the variables from outside
   */
  public List getOutsideVariable() {
    final ArrayList list = new ArrayList();
    for (int i = 0; i < statements.length; i++) {
      list.addAll(statements[i].getOutsideVariable());
    }
    return list;
  }

  /**
   * get the modified variables.
   * @return the variables from we change value
   */
  public List getModifiedVariable() {
    final ArrayList list = new ArrayList();
    for (int i = 0; i < statements.length; i++) {
      list.addAll(statements[i].getModifiedVariable());
    }
    return list;
  }

  /**
   * Get the variables used.
   * @return the variables used
   */
  public List getUsedVariable() {
    final ArrayList list = new ArrayList();
    for (int i = 0; i < statements.length; i++) {
      list.addAll(statements[i].getUsedVariable());
    }
    return list;
  }
}