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

/**
 * A For statement.
 * for(initializations;condition;increments) action
 * @author Matthieu Casanova
 */
public class ForStatement extends Statement {

  /** the initializations. */
  public Expression[] initializations;

  /** the condition. */
  public Expression condition;
  /** the increments. */
  public Expression[] increments;

  public Statement action;

  public ForStatement(Expression[] initializations,
                      Expression condition,
                      Expression[] increments,
                      Statement action,
                      int sourceStart,
                      int sourceEnd) {
    super(sourceStart, sourceEnd);
    this.initializations = initializations;
    this.condition = condition;
    this.increments = increments;
    this.action = action;
  }

  public String toString(int tab) {
    final StringBuffer buff = new StringBuffer(tabString(tab));
    buff.append("for (");  //$NON-NLS-1$
    //inits
    if (initializations != null) {
      for (int i = 0; i < initializations.length; i++) {
        buff.append(initializations[i].toStringExpression());
        if (i != (initializations.length - 1))
          buff.append(" , "); //$NON-NLS-1$
      }
    }
    buff.append( "; "); //$NON-NLS-1$
    //cond
    if (condition != null)           {
      buff.append(condition.toStringExpression());
    }
    buff.append( "; "); //$NON-NLS-1$
    //updates
    if (increments != null) {
      for (int i = 0; i < increments.length; i++) {
        //nice only with expressions
        buff.append(increments[i].toStringExpression());
        if (i != (increments.length - 1))
          buff.append(" , "); //$NON-NLS-1$
      }
    }
    buff.append(") "); //$NON-NLS-1$
    //block
    if (action == null)
      buff.append("{}"); //$NON-NLS-1$
    else
      buff.append(action.toString(tab + 1)); //$NON-NLS-1$
    return buff.toString();
  }
}