Debug not compatible with mdo blocks?

[georgewsinger]

I'm getting the following when trying to instrument an entire file:

/home/george/haskell-tinywl//tmp/ghc23679_0/ghc_1.hspp:708:64: error
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    mdo, monad comprehension and [: :] not (yet) handled by Template
 Haskell                                                           

I use mdo blocks throughout my module. I'm assuming this means Debug isn't compatible with these mdo blocks? If so, will changing all mdo blocks to rec statements make it work?

[ndmitchell]

Sounds like yes. We go via template haskell, so if template haskell doesn't support mdo blocks we don't stand a chance.

[georgewsinger]

Ok. Can confirm rec statements also do not work.

[ndmitchell]

I think if you want them to work, you should ask for GHC to support them in Template Haskell.