#835: Expose less type/class info in an interface file, to reduce recompilation
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Reporter: simonpj | Owner:
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.4.2
Severity: normal | Keywords:
Os: Unknown | Difficulty: Unknown
Architecture: Unknown |
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John Meacham writes "However, whenever I change a data type or class even
if they are not exported, it seems to force a full rebuild of everything
that depends on that file. Is there any fundamental reason this can't be
fixed? why do the non exported classes and data types end up in the hi
file anyway (assuming they appear in no exported functions type signature
of course)."
Solution: Fix GHC so that it doesn't expose a data type at all if nothing
about it is exported; and doesn't its constructors if they are not
exported, and not used in any unfolding.
Doing this would reduce recompilation changes.
[http://www.haskell.org/pipermail/glasgow-haskell-users/2006-
July/010596.html]
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/835>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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