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Resolving Symbolic References in a CodeDOM (Part 7)

, 2 Dec 2012 CDDL
Resolving symbolic references in a CodeDOM.
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Base
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Base
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Utilities
Mono.Cecil
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CodeDOM
Annotations
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;
using Nova.Rendering;

namespace Nova.CodeDOM
{
    /// <summary>
    /// The common base class of all operations (binary, unary, or other).
    /// </summary>
    public abstract class Operator : Expression
    {
        #region /* CONSTANTS */

        /// <summary>
        /// Name prefix used for overloadable operator names.
        /// </summary>
        public const string NamePrefix = "op_";

        #endregion

        #region /* CONSTRUCTORS */

        protected Operator()
        { }

        #endregion

        #region /* PROPERTIES */

        /// <summary>
        /// The symbol associated with the operator.
        /// </summary>
        public virtual string Symbol
        {
            get { return null; }
        }

        #endregion

        #region /* PARSING */

        protected Operator(Parser parser, CodeObject parent)
            : base(parser, parent)
        { }

        /// <summary>
        /// Get the precedence of the operator.
        /// </summary>
        public abstract int GetPrecedence();

        #endregion

        #region /* RENDERING */

        /// <summary>
        /// Convert operator to text.
        /// </summary>
        protected virtual void AsTextOperator(CodeWriter writer, RenderFlags flags)
        {
            writer.Write(Symbol);
        }

        #endregion
    }

    // OPERATOR PRECEDENCE AND ASSOCIATIVITY:
    // ======================================
    //
    // Operator precedence and associativity are determined by the individual operator
    // classes, when they register with the Parser.  The table below is provided as a
    // quick-reference.  A lower Precedence value means higher precedence.  When a series
    // of the same operator occur, such as "a + b + c", the associativity determines how
    // they are grouped: Left means "(a + b) + c" while right means "a + (b + c)".
    // Precedence values are spaced out to allow for the addition of new operators.
    //
    // Category           Operators              Precedence  Associativity  Overloadable
    // -----------------  ----------             ----------  -------------  ------------
    // Primary            x.y f(x) a[x] x++ x--     100          Left       x++ x--
    //                    new  typeof  sizeof                               (a[x] via indexers)
    //                    checked  unchecked
    //                    default ::
    // Unary              +  -  !  ~  ++x  --x      200          Left       +  -  !  ~  ++x  --x
    //                    (T)x
    // Multiplicative     *  /  %                   300          Left       *  /  %
    // Additive           +  -                      310          Left       +  -
    // Shift              <<  >>                    320          Left       <<  >>
    // Relational/Types   <  >  <=  >=  is  as      330          Left       <  >  <=  >=
    // Equality           ==  !=                    340          Left       ==  !=
    // Bitwise AND        &                         350          Left       &
    // Bitwise XOR        ^                         360          Left       ^
    // Bitwise OR         |                         365          Left       |
    // AND                &&                        370          Left
    // OR                 ||                        385          Left
    // IfNullThen         ??                        390          Right
    // Conditional        ? :                       400          Right
    // Assignment         =  *=  /=  %=  +=  -=     500          Right
    //                    <<=  >>=  &=  ^=  |=
    // Ref/Out            ref  out                  920          n/a
}

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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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