[GHC] #14581: coerce String type in annotations with OverloadedStrings enabled
GHC
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Thu Dec 14 13:03:00 UTC 2017
#14581: coerce String type in annotations with OverloadedStrings enabled
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Reporter: mgmeier | Owner: (none)
Type: feature request | Status: closed
Priority: low | Milestone:
Component: Compiler | Version: 8.2.1
Resolution: invalid | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Changes (by RyanGlScott):
* status: new => closed
* resolution: => invalid
Comment:
Replying to [comment:1 mgmeier]:
> Addendum: or is the general idea of annotations that you should be able
to annotate some definition with ''any'' Haskell value?
Yes.
[https://downloads.haskell.org/~ghc/8.2.2/docs/html/users_guide/extending_ghc.html?highlight=ann
#annotating-values Per the users' guide:]
> Any expression that has both `Typeable` and `Data` instances may be
attached to a top-level value binding using an `ANN` pragma.
Thus both `String` and `Text` could be used in an `ANN` pragma, so you'd
need to resolve the ambiguity yourself.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14581#comment:2>
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