Resolving Symbolic References in a CodeDOM (Part 7)

// The Nova Project by Ken Beckett.
// Copyright (C) 2007-2012 Inevitable Software, all rights reserved.
// Released under the Common Development and Distribution License, CDDL-1.0: http://opensource.org/licenses/cddl1.php

using Nova.Parsing;

namespace Nova.CodeDOM
{
    /// <summary>
    /// Represents conditional flow control, and includes a conditional expression, a body, and an optional <see cref="Else"/> or <see cref="ElseIf"/> statement.
    /// </summary>
    public class If : IfBase
    {
        #region /* CONSTRUCTORS */

        /// <summary>
        /// Create an <see cref="If"/>.
        /// </summary>
        public If(Expression conditional, CodeObject body)
            : base(conditional, body)
        { }

        /// <summary>
        /// Create an <see cref="If"/>.
        /// </summary>
        public If(Expression conditional, CodeObject body, Else @else)
            : base(conditional, body, @else)
        { }

        /// <summary>
        /// Create an <see cref="If"/>.
        /// </summary>
        public If(Expression conditional, CodeObject body, ElseIf elseIf)
            : base(conditional, body, elseIf)
        { }

        /// <summary>
        /// Create an <see cref="If"/>.
        /// </summary>
        public If(Expression conditional)
            : base(conditional)
        { }

        /// <summary>
        /// Create an <see cref="If"/>.
        /// </summary>
        public If(Expression conditional, Else @else)
            : base(conditional, @else)
        { }

        /// <summary>
        /// Create an <see cref="If"/>.
        /// </summary>
        public If(Expression conditional, ElseIf elseIf)
            : base(conditional, elseIf)
        { }

        #endregion

        #region /* PROPERTIES */

        /// <summary>
        /// The keyword associated with the <see cref="Statement"/>.
        /// </summary>
        public override string Keyword
        {
            get { return ParseToken; }
        }

        #endregion

        #region /* PARSING */

        /// <summary>
        /// The token used to parse the code object.
        /// </summary>
        public const string ParseToken = "if";

        internal static void AddParsePoints()
        {
            Parser.AddParsePoint(ParseToken, Parse, typeof(IBlock));
        }

        /// <summary>
        /// Parse an <see cref="If"/>.
        /// </summary>
        public static If Parse(Parser parser, CodeObject parent, ParseFlags flags)
        {
            return new If(parser, parent);
        }

        protected If(Parser parser, CodeObject parent)
            : base(parser, parent)
        {
            ParseIf(parser, parent);  // Delegate to base class to parse 'if'
        }

        #endregion
    }
}