[Mono-bugs] [Bug 77139][Nor] New - Inconsistences when declaring
anonymous methods to delegates.
bugzilla-daemon at bugzilla.ximian.com
bugzilla-daemon at bugzilla.ximian.com
Mon Jan 2 19:03:46 EST 2006
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Changed by felipe.lessa at gmail.com.
http://bugzilla.ximian.com/show_bug.cgi?id=77139
--- shadow/77139 2006-01-02 19:03:46.000000000 -0500
+++ shadow/77139.tmp.6177 2006-01-02 19:03:46.000000000 -0500
@@ -0,0 +1,91 @@
+Bug#: 77139
+Product: Mono: Compilers
+Version: 1.1
+OS:
+OS Details: Debian Unstable (packages version 1.1.12.1-1)
+Status: NEW
+Resolution:
+Severity:
+Priority: Normal
+Component: C#
+AssignedTo: rharinath at novell.com
+ReportedBy: felipe.lessa at gmail.com
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: Inconsistences when declaring anonymous methods to delegates.
+
+Description of Problem:
+Saying...
+
+int i;
+i = 0;
+
+...is the same as saying...
+
+int i = 0;
+
+...in C#, but saying...
+
+EventHandler a;
+a = delegate {
+ // ...
+};
+
+...is being interpreted differently than when saying...
+
+EventHandler a = delegate {
+ // ...
+}
+
+Please see the test case for more information.
+
+Steps to reproduce the problem:
+1. Save the test case as a file (e.g. "bug.cs").
+2. Try to compile it (e.g. "mcs bug.cs" or "gmcs bug.cs").
+
+Actual Results:
+$ mcs bug.cs
+bug.cs(18,36): error CS0103: The name `callOnce2' does not exist in the
+context of `Bug'
+Compilation failed: 1 error(s), 0 warnings
+
+Expected Results:
+$ mcs bug.cs
+$ # Compiled correctly
+
+How often does this happen?
+Always.
+
+Additional Information:
+I don't know if this is really a bug. I never read the specs and I can't
+currently test with MS .NET to see what happens there, I'm just following
+my instincts.
+
+Test case:
+////////////////////////////////////////////
+using System;
+
+public static class Bug {
+ public static event EventHandler myEvent;
+ public static void Main() {
+ // This works fine
+ EventHandler callOnce1;
+ callOnce1 = delegate {
+ //DoSomethingJustOnce();
+ myEvent -= callOnce1;
+ };
+ myEvent += callOnce1;
+
+ // This leads to a compiler error
+ // bug.cs(18,36): error CS0103: The name `callOnce2' does
+not exist in the context of `Bug'
+ EventHandler callOnce2 = delegate {
+ //DoSomethingJustOnce();
+ myEvent -= callOnce2;
+ };
+ myEvent += callOnce2;
+ }
+}
+////////////////////////////////////////////
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