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Bug 9225 - Conditional Attributes Inconsistent with MS .NET
: Conditional Attributes Inconsistent with MS .NET
Status: RESOLVED FIXED
Product: Compilers
Classification: Mono
Component: C#
: unspecified
: Macintosh Mac OS
: --- normal
: ---
Assigned To: Marek Safar
:
:
:
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  Show dependency treegraph
 
Reported: 2013-01-03 11:14 EST by Brandon Vaughan
Modified: 2013-01-04 10:03 EST (History)
2 users (show)

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Test Case URL:
External Submit: ---


Attachments
The source file used to reproduce the problem. (929 bytes, application/octet-stream)
2013-01-03 11:14 EST, Brandon Vaughan
Details

Description Brandon Vaughan 2013-01-03 11:14:57 EST
Created attachment 3158 [details]
The source file used to reproduce the problem.

When using a conditional attribute on an attribute class, the attribute is
being created even if the condition isn't met.  The following code prints
"Hello World!" in Mono and "Attribute not found." in Visual Studio.

using System;
using System.Reflection;
using System.Diagnostics;

namespace ConditionalAttributeTesting
{
    class MainClass
    {
        public static void Main (string[] args)
        {
            UtilityClass.HelloWorld();
        }
    }

    class UtilityClass
    {
        [Some("Hello World!")]
        public static void HelloWorld ()
        {
            MethodInfo methodInfo = typeof(UtilityClass).GetMethod
("HelloWorld");
            if (methodInfo != null) {
                SomeAttribute someAttribute = Attribute.GetCustomAttribute
(methodInfo, typeof(SomeAttribute)) as SomeAttribute;
                if (someAttribute != null) {
                Console.WriteLine (someAttribute.myString);
                } else
                {
                    Console.WriteLine("Attribute not found.");
                }
            }
        }
    }

    [AttributeUsage(AttributeTargets.All)]
    [Conditional("NOT_DEFINED")]
    public sealed class SomeAttribute : Attribute
    {
        public string myString { get; private set; }

        public SomeAttribute (string someText)
        {
            myString = someText;
        }
    }
}
Comment 1 Marek Safar 2013-01-04 10:03:54 EST
Fixed in master

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