[GHC] #10653: PatternSynonyms should be imported/exported as part of the wildcard notation
GHC
ghc-devs at haskell.org
Fri Jul 17 18:39:58 UTC 2015
#10653: PatternSynonyms should be imported/exported as part of the wildcard
notation
-------------------------------------+-------------------------------------
Reporter: gridaphobe | Owner:
Type: feature request | Status: new
Priority: normal | Milestone: 7.12.1
Component: Compiler | Version: 7.11
Resolution: | Keywords: pattern
Operating System: Unknown/Multiple | synonyms
Type of failure: None/Unknown | Architecture:
Blocked By: | Unknown/Multiple
Related Tickets: | Test Case:
| Blocking:
| Differential Revisions:
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Comment (by simonpj):
I don't really agree. What would you say for
{{{
pattern P x = Tree (Just x)
}}}
would you put it in list or Maybe? What about this?
{{{
pattern Q x = (x, True)
}}}
Would you export it with pairs?
Pattern synonyms inherently do not belong to one type in the way that data
constructors do.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10653#comment:1>
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