[GHC] #9819: Create typesafe method of obtaining dictionary types from class definitions, and constraint objects from dictionary types
GHC
ghc-devs at haskell.org
Sun Nov 23 03:02:43 UTC 2014
#9819: Create typesafe method of obtaining dictionary types from class
definitions, and constraint objects from dictionary types
-------------------------------------+-------------------------------------
Reporter: | Owner:
spacekitteh | Status: new
Type: feature | Milestone:
request | Version:
Priority: normal | Keywords:
Component: Compiler | Architecture: Unknown/Multiple
Resolution: | Difficulty: Moderate (less
Operating System: | than a day)
Unknown/Multiple | Blocked By:
Type of failure: | Related Tickets:
None/Unknown |
Test Case: |
Blocking: |
Differential Revisions: |
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Comment (by spacekitteh):
Essentially, I'm looking for a method to automate the process of defining
the Def data function in the ReifiableConstraint class in here:
https://www.fpcomplete.com/user/thoughtpolice/using-reflection#turning-up-
the-magic-to-over-9000
for arbitrary constraints.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9819#comment:4>
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