#5427: '#' becomes an illegal first-character of a QuasiQuote line when CPP is
enabled
---------------------------------+------------------------------------------
Reporter: GregWeber | Owner:
Type: bug | Status: new
Priority: normal | Component: Template Haskell
Version: 7.2.1 | Keywords:
Testcase: | Blockedby:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
---------------------------------+------------------------------------------
{-# 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.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5427>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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