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Diffstat (limited to 'compiler/hsSyn/HsDecls.lhs')
| -rw-r--r-- | compiler/hsSyn/HsDecls.lhs | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/compiler/hsSyn/HsDecls.lhs b/compiler/hsSyn/HsDecls.lhs index 6f7e41f6f7..a18508e98e 100644 --- a/compiler/hsSyn/HsDecls.lhs +++ b/compiler/hsSyn/HsDecls.lhs @@ -38,6 +38,7 @@ module HsDecls ( DataFamInstDecl(..), LDataFamInstDecl, pprDataFamInstFlavour, TyFamEqn(..), TyFamInstEqn, LTyFamInstEqn, TyFamDefltEqn, LTyFamDefltEqn, LClsInstDecl, ClsInstDecl(..), + placeHolderRepTyCon, -- ** Standalone deriving declarations DerivDecl(..), LDerivDecl, @@ -1017,14 +1018,18 @@ deriving instance (DataId name) => Data (TyFamInstDecl name) type LDataFamInstDecl name = Located (DataFamInstDecl name) data DataFamInstDecl name = DataFamInstDecl - { dfid_tycon :: Located name - , dfid_pats :: HsTyPats name -- LHS - , dfid_defn :: HsDataDefn name -- RHS - , dfid_fvs :: PostRn name NameSet } -- Rree vars for - -- dependency analysis + { dfid_tycon :: Located name + , dfid_rep_tycon :: name -- See Note [Assigning names to instance declarations] in RnSource + , dfid_pats :: HsTyPats name -- LHS + , dfid_defn :: HsDataDefn name -- RHS + , dfid_fvs :: PostRn name NameSet } -- Free vars for dependency analysis deriving( Typeable ) deriving instance (DataId name) => Data (DataFamInstDecl name) +placeHolderRepTyCon :: name +-- Used for dfid_rep_tycon in DataFamInstDecl prior to the renamer +placeHolderRepTyCon = panic "placeHolderRepTyCon" + ----------------- Class instances ------------- |