[GHC] #8220: Macros / functions for source location

[GHC]

#8220: Macros / functions for source location
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        Reporter:  wojteknar         |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by simonpj):

 Also in Template Haskell you can get the source location of the splice.
 Thus
 {{{
 ...$(do { loc <- location; ... })....
 }}}
 But not (currently) the name of the enclosing function.  It's not obvious
 exactly what you need here.  The innermost enclosing function?  Outermost?
 What if the splice is in a type declaration not a value declaration?

 In general, TH (rather than CPP) seems a nicer place to experiment.  You
 could work on a design in collaboration with others, with worked-out use-
 cases.

 Simon

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8220#comment:3>
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