WhileStatement.cs

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// Copyright (c) 2014 Silicon Studio Corp. (http://siliconstudio.co.jp)
// This file is distributed under GPL v3. See LICENSE.md for details.
using System;
using System.Collections;
using System.Collections.Generic;

namespace SiliconStudio.Shaders.Ast
{
    /// <summary>
    /// While and Do-While statement.
    /// </summary>
    public class WhileStatement : Statement, IScopeContainer
    {
        #region Public Properties

        /// <summary>
        ///   Gets or sets the condition.
        /// </summary>
        /// <value>
        ///   The condition.
        /// </value>
        public Expression Condition { get; set; }

        /// <summary>
        ///   Gets or sets a value indicating whether this instance is a do while.
        /// </summary>
        /// <value>
        ///   <c>true</c> if this instance is a do while; otherwise, <c>false</c>.
        /// </value>
        public bool IsDoWhile { get; set; }

        /// <summary>
        ///   Gets or sets the statement.
        /// </summary>
        /// <value>
        ///   The statement.
        /// </value>
        public Statement Statement { get; set; }

        #endregion

        #region Public Methods

        /// <inheritdoc />
        public override IEnumerable<Node> Childrens()
        {
            ChildrenList.Clear();
            ChildrenList.Add(Condition);
            ChildrenList.Add(Statement);
            return ChildrenList;
        }

        /// <inheritdoc />
        public override string ToString()
        {
            if (IsDoWhile)
            {
                return string.Format("do {{...}} while ({0})", Condition);
            }

            return string.Format("while ({0}) {{...}}", Condition);
        }

        #endregion
    }
}