[GHC] #12778: Expose variables bound in quotations to reify

[GHC]

#12778: Expose variables bound in quotations to reify
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        Reporter:                    |                Owner:  (none)
  facundo.dominguez                  |
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Template Haskell  |              Version:  8.0.1
      Resolution:                    |             Keywords:  template-
                                     |  haskell reify
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3003
       Wiki Page:                    |
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Comment (by mboes):

 Here's a clarification as to the scope of this ticket. The example in the
 description shows that `addModFinalizer` only knows about variables bound
 in the source code, but not variables introduced by a splice. This ticket
 is about making the types of all variables queryable in `addModFinalizer`.
 Whereas #13608 is much less ambitious: it only seeks to name all
 quasiquotes so that the type of each quasiquote can be queried in
 `addModFinalizer`, without resolving this ticket in its entirety.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12778#comment:7>
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