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Created attachment 2903 [details]
repro patch set to mono tree (with external/rx)
This is (sorry to say again) non-unit test case that was found during import of rx.codeplex.com into mono.
It seems that mcs fails to resolve method invocations to the _private_ one (which is wrong) in the nearest ancestor, instead of the expected _internal_ further ancestors.
Almost the same as bug #8320, but with the updated patch attached here this time. You could remove mcs/class/*Reactive* and [checkout mcs/class/Makefile and re-apply add-rx-libs.patch] or [edit mcs/class/Makefile and add System.Reactive.Debugger]. This patch updates involves some Makefile changes, additional sources and additional build args, so you most likely want to remove old directories.
Then run "make run-test"
(Actually I tried to create simpler repro but I couldn't.)
Failures like this:
67) ReactiveTests.Tests.RegressionTest.Bug_1297_Catch_Single : System.MethodAccessException : Method `System.Reactive.TailRecursiveSink`1<int>:Dispose ()' is inaccessible from method `System.Reactive.Linq.Observαble.Catch`1/_<int>:Done ()'
at System.Reactive.TailRecursiveSink`1[System.Int32].MoveNext () [0x0019c] in /svn/mono/external/rx/Rx.NET/System.Reactive.Linq/Reactive/Internal/TailRecursiveSink.cs:137
at System.Reactive.Concurrency.AsyncLock.Wait (System.Action action) [0x000b6] in /svn/mono/external/rx/Rx.NET/System.Reactive.Core/Reactive/Concurrency/AsyncLock.cs:57
none of the errors above.
The updated patch set contains an additional patch to "System.Reactive.Linq" in rx tree. In the updated patch archive, there is "internals-visibleto-workaround.patch". It actually describes the bug. With this patch, those problematic NUnit failures are gone. The patch changes the call target to the appropriate base class that contains the exact target internal method to resolve.
I set up shrunk source tree of MS rx at https://github.com/atsushieno/rx.
If you checkout "rx-oss-v1.0" branch, it is already applied the patches inside Rx.NET tree.
Created attachment 2908 [details]
I forgot to attach a public key for rx assemblies that is now referenced by each "MonoAssemblyInfo.cs" file.
Fixed in master