[Mono-bugs] [Bug 76957][Nor] New - compiler crash with anonymous
methods
bugzilla-daemon at bugzilla.ximian.com
bugzilla-daemon at bugzilla.ximian.com
Fri Dec 9 05:35:44 EST 2005
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Changed by lupus at ximian.com.
http://bugzilla.ximian.com/show_bug.cgi?id=76957
--- shadow/76957 2005-12-09 05:35:44.000000000 -0500
+++ shadow/76957.tmp.16722 2005-12-09 05:35:44.000000000 -0500
@@ -0,0 +1,53 @@
+Bug#: 76957
+Product: Mono: Compilers
+Version: 1.1
+OS:
+OS Details:
+Status: NEW
+Resolution:
+Severity:
+Priority: Normal
+Component: C#
+AssignedTo: rharinath at novell.com
+ReportedBy: lupus at ximian.com
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: compiler crash with anonymous methods
+
+The following sample makes mcs crash with:
+Unhandled Exception: System.Exception: This should not happen: both Field
+and Local are null
+in <0x001b3> Mono.CSharp.LocalVariableReference:EmitAssign
+(Mono.CSharp.EmitContext ec, Mono.CSharp.Expression source, Boolean
+leave_copy, Boolean prepare_for_load)
+in <0x0017c> Mono.CSharp.Assign:Emit (Mono.CSharp.EmitContext ec, Boolean
+is_statement)
+in <0x0000f> Mono.CSharp.Assign:EmitStatement (Mono.CSharp.EmitContext ec)
+...
+
+using System;
+
+delegate void Do ();
+
+class T {
+ static void doit (int v) {
+ Console.WriteLine (v);
+ }
+ static void Main () {
+ Do[] arr = new Do [5];
+ for (int i = 0; i < 5; ++i) {
+ arr [i] = delegate {doit (i);};
+ }
+ for (int i = 0; i < 5; ++i) {
+ arr [i] ();
+ }
+ for (int i = 0; i < 5; ++i) {
+ arr [i] = delegate {doit (i);};
+ }
+ }
+
+}
+
+The crash disappears when removing the last for loop.
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