https://bugzilla.novell.com/show_bug.cgi?id=440819
Summary: Array generic interfaces are not type-safe
Product: Mono: Runtime
Version: SVN
Platform: x86-64
OS/Version: Linux
Status: NEW
Severity: Major
Priority: P5 - None
Component: generics
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QAContact: [email protected]
Found By: ---
The following code snippet exhibits unsafe behaviour in the implementation of
array generic interfaces.
----------8<---------
using System;
using System.Collections.Generic;
class A {
static void Main ()
{
A [] aa = new A [1];
IList<object> io = aa;
io [0] = new object ();
A a = aa [0];
Console.WriteLine ("{0}", a.GetType ());
}
}
----------8<---------
When compiled and run on mono, this emits the following
$ ./mono-2.0 array-bad.exe
System.Object
The expected behaviour is to throw a ArrayTypeMismatchException. (caveat: I
haven't actually tested it on .NET, the actual exception thrown may be
different)
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