[GHC] #11393: Ability to define INLINE pragma for all instances of a given typeclass
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Mon Jan 11 11:21:23 UTC 2016
#11393: Ability to define INLINE pragma for all instances of a given typeclass
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Reporter: danilo2 | Owner:
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 8.1
Resolution: | 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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Comment (by simonpj):
I'm not sure this is a good plan.
* What if someone writes a bug instance declaration? Having an `{-# INLINE
#=}` pragma written somewhere else entirely might be highly unexpected.
* The `{-# INLINE #-}` pragma in a class decl applies to the default
method declaration in that class decl. We'd need a way to get the current
behaviour (i.e. inline the default method, but no effect on instances that
define their own method for `foo`).
Seems doubtful to me.
Simon
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11393#comment:3>
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