[GHC] #4372: Extending quasiquotation support

[GHC]

#4372: Extending quasiquotation support
---------------------------------+------------------------------------------
    Reporter:  simonpj           |        Owner:              
        Type:  bug               |       Status:  new         
    Priority:  normal            |    Milestone:              
   Component:  Template Haskell  |      Version:  6.12.3      
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by simonpj):

 It's also worth reminding ourselves that quasi-quote syntax is only
 shorthand for a TH splice.  Thus
 {{{
 [pads| <blah> |]
 }}}
 means
 {{{
 $(quoteExp pads "<blah>")
 }}}
 So in the case proposed by Gershom you could say
 {{{
 $(quoteExp (jmt [jsModuleSig]) "<blah>")
 }}}
 and away you go.  Is that so bad?

 At the moment you can't do TH splices in patterns or local declarations,
 whereas you can use quasi-quotes.  I have separate plans to change that
 (need time to write up), but let's assume for the sake of argument that
 patterns can be done the same way as expressions.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4372#comment:8>
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