'#' becomes an illegal first-character of a QuasiQuote line when CPP is enabled

{-# LANGUAGE CPP #-} <pre> [hamlet| #{foo} |] </pre>

This will fail to compile. CPP should skip over a quasi-quote, which is allowed to have any characters. I think the only use case for CPP inside QQ is trying to place a QQ into an external file. In Yesod, we accomplish this with Template Haskell.

Our ideal situation would be for GHC to provide a function loadQQ. This would make it simple to not need #include. But my real hope is that loadQQ will identify the external file as a dependency and automatically recompile that code as needed.

Trac metadata

Trac field	Value
Version	7.2.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Template Haskell
Test case
Differential revisions
BlockedBy
Related
Blocking
CC	michael@snoyman.com
Operating system
Architecture