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| author | Simon Peyton Jones <simonpj@microsoft.com> | 2017-12-20 15:36:49 +0000 |
|---|---|---|
| committer | Simon Peyton Jones <simonpj@microsoft.com> | 2017-12-21 14:14:21 +0000 |
| commit | 584cbd4a19887497776ce1f61c15df652b8b2ea4 (patch) | |
| tree | d38a508d7e3a4f243d4750174cf2a5d611f327da /compiler/typecheck/TcPatSyn.hs | |
| parent | 4d41e9212d1fdf109f2d0174d204644446f5874c (diff) | |
| download | haskell-584cbd4a19887497776ce1f61c15df652b8b2ea4.tar.gz | |
Simplify HsPatSynDetails
This is a pure refactoring. Use HsConDetails to implement
HsPatSynDetails, instead of defining a whole new data type.
Less code, fewer types, all good.
Diffstat (limited to 'compiler/typecheck/TcPatSyn.hs')
| -rw-r--r-- | compiler/typecheck/TcPatSyn.hs | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/compiler/typecheck/TcPatSyn.hs b/compiler/typecheck/TcPatSyn.hs index 2bd30f4c06..7e21af5faa 100644 --- a/compiler/typecheck/TcPatSyn.hs +++ b/compiler/typecheck/TcPatSyn.hs @@ -402,12 +402,11 @@ collectPatSynArgInfo :: HsPatSynDetails (Located Name) -> ([Name], [Name], Bool) collectPatSynArgInfo details = case details of - PrefixPatSyn names -> (map unLoc names, [], False) - InfixPatSyn name1 name2 -> (map unLoc [name1, name2], [], True) - RecordPatSyn names -> - let (vars, sels) = unzip (map splitRecordPatSyn names) - in (vars, sels, False) - + PrefixCon names -> (map unLoc names, [], False) + InfixCon name1 name2 -> (map unLoc [name1, name2], [], True) + RecCon names -> (vars, sels, False) + where + (vars, sels) = unzip (map splitRecordPatSyn names) where splitRecordPatSyn :: RecordPatSynField (Located Name) -> (Name, Name) @@ -710,9 +709,9 @@ tcPatSynBuilderBind (PSB { psb_id = L loc name, psb_def = lpat (noLoc EmptyLocalBinds) args = case details of - PrefixPatSyn args -> args - InfixPatSyn arg1 arg2 -> [arg1, arg2] - RecordPatSyn args -> map recordPatSynPatVar args + PrefixCon args -> args + InfixCon arg1 arg2 -> [arg1, arg2] + RecCon args -> map recordPatSynPatVar args add_dummy_arg :: MatchGroup GhcRn (LHsExpr GhcRn) -> MatchGroup GhcRn (LHsExpr GhcRn) |