// 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> /// Decrements an <see cref="Expression"/> *after* it is evaluated. /// Use <see cref="Decrement"/> instead when possible, because it's more efficient. /// </summary> public class PostDecrement : PostUnaryOperator { #region /* CONSTRUCTORS */ /// <summary> /// Create a <see cref="PostDecrement"/> operator. /// </summary> public PostDecrement(Expression expression) : base(expression) { } #endregion #region /* PROPERTIES */ /// <summary> /// The symbol associated with the operator. /// </summary> public override string Symbol { get { return ParseToken; } } #endregion #region /* PARSING */ /// <summary> /// The token used to parse the code object. /// </summary> public const string ParseToken = Decrement.ParseToken; /// <summary> /// The precedence of the operator. /// </summary> public const int Precedence = 100; /// <summary> /// True if the operator is left-associative, or false if it's right-associative. /// </summary> public const bool LeftAssociative = true; internal static new void AddParsePoints() { // Use a parse-priority of 100 (Decrement uses 0) Parser.AddOperatorParsePoint(ParseToken, 100, Precedence, LeftAssociative, false, Parse); } /// <summary> /// Parse a <see cref="PostDecrement"/> operator. /// </summary> public static PostDecrement Parse(Parser parser, CodeObject parent, ParseFlags flags) { return new PostDecrement(parser, parent); } protected PostDecrement(Parser parser, CodeObject parent) : base(parser, parent) { } /// <summary> /// Get the precedence of the operator. /// </summary> public override int GetPrecedence() { return Precedence; } #endregion } }
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Math Primers for Programmers
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