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| author | Richard Eisenberg <eir@cis.upenn.edu> | 2016-01-13 23:29:17 -0500 |
|---|---|---|
| committer | Richard Eisenberg <eir@cis.upenn.edu> | 2016-01-27 09:33:26 -0500 |
| commit | 00cbbab3362578df44851442408a8b91a2a769fa (patch) | |
| tree | c8f79d003510e191adeab0d1b98f20ebde40d914 /utils | |
| parent | 2899aa580d633103fc551e36c977720b94f5b41c (diff) | |
| download | haskell-00cbbab3362578df44851442408a8b91a2a769fa.tar.gz | |
Refactor the typechecker to use ExpTypes.
The idea here is described in [wiki:Typechecker]. Briefly,
this refactor keeps solid track of "synthesis" mode vs
"checking" in GHC's bidirectional type-checking algorithm.
When in synthesis mode, the expected type is just an IORef
to write to.
In addition, this patch does a significant reworking of
RebindableSyntax, allowing much more freedom in the types
of the rebindable operators. For example, we can now have
`negate :: Int -> Bool` and
`(>>=) :: m a -> (forall x. a x -> m b) -> m b`. The magic
is in tcSyntaxOp.
This addresses tickets #11397, #11452, and #11458.
Tests:
typecheck/should_compile/{RebindHR,RebindNegate,T11397,T11458}
th/T11452
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/ghctags/Main.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/utils/ghctags/Main.hs b/utils/ghctags/Main.hs index 1969216956..ccdd327217 100644 --- a/utils/ghctags/Main.hs +++ b/utils/ghctags/Main.hs @@ -299,8 +299,8 @@ boundThings modname lbinding = ConPatIn _ conargs -> conArgs conargs tl ConPatOut{ pat_args = conargs } -> conArgs conargs tl LitPat _ -> tl - NPat _ _ _ -> tl -- form of literal pattern? - NPlusKPat id _ _ _ -> thing id : tl + NPat {} -> tl -- form of literal pattern? + NPlusKPat id _ _ _ _ _ -> thing id : tl SigPatIn p _ -> patThings p tl SigPatOut p _ -> patThings p tl _ -> error "boundThings" |