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Resolving Symbolic References in a CodeDOM (Part 7)

, 2 Dec 2012
Resolving symbolic references in a CodeDOM.
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Base
Comments
Base
DocComments
CodeRef
Base
List
Name
Base
Other
Simple
CompilerDirectives
Base
Conditionals
Base
Messages
Base
Pragmas
Base
Symbols
Base
Base
Expressions
AnonymousMethods
Base
Operators
Base
Binary
Arithmetic
Base
Assignment
Base
Bitwise
Base
Conditional
Relational
Base
Shift
Base
Other
Base
Unary
Base
Other
References
Base
GotoTargets
Base
Methods
Namespaces
Other
Properties
Types
Base
Variables
Base
Projects
Namespaces
References
Base
Statements
Base
Conditionals
Base
Exceptions
Generics
Constraints
Base
Iterators
Base
Jumps
Loops
Methods
OperatorDecls
Miscellaneous
Namespaces
Properties
Base
Events
Types
Base
Variables
Base
Properties
Resolving
Utilties
// 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>
    /// Allows for removing an existing definition of a "pre-processor" symbol - may only appear at the top of a <see cref="CodeUnit"/> (file)!
    /// </summary>
    public class UnDefSymbol : SymbolDirective
    {
        #region /* CONSTRUCTORS */

        /// <summary>
        /// Create an <see cref="UnDefSymbol"/>.
        /// </summary>
        public UnDefSymbol(string symbol)
            : base(symbol)
        { }

        #endregion

        #region /* PARSING */

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

        internal static void AddParsePoints()
        {
            Parser.AddCompilerDirectiveParsePoint(ParseToken, Parse);
        }

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

        /// <summary>
        /// Parse an <see cref="UnDefSymbol"/>.
        /// </summary>
        public UnDefSymbol(Parser parser, CodeObject parent)
            : base(parser, parent)
        {
            ParseSymbol(parser);
            parser.CodeUnit.UndefineCompilerDirectiveSymbol(_symbol);
        }

        #endregion

        #region /* RENDERING */

        /// <summary>
        /// The keyword associated with the compiler directive (if any).
        /// </summary>
        public override string DirectiveKeyword
        {
            get { return ParseToken; }
        }

        #endregion
    }
}

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This article, along with any associated source code and files, is licensed under The Common Development and Distribution License (CDDL)

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About the Author

KenBeckett
Software Developer (Senior)
United States United States
I've been writing software since the late 70's, currently focusing mainly on C#.NET. I also like to travel around the world, and I own a Chocolate Factory (sadly, none of my employees are oompa loompas).

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