diff options
Diffstat (limited to 'compiler/GHC/Rename/Env.hs')
| -rw-r--r-- | compiler/GHC/Rename/Env.hs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/compiler/GHC/Rename/Env.hs b/compiler/GHC/Rename/Env.hs index 062a60088d..5c5a5797c8 100644 --- a/compiler/GHC/Rename/Env.hs +++ b/compiler/GHC/Rename/Env.hs @@ -814,15 +814,17 @@ the encloseing instance decl, if any. Note [Looking up Exact RdrNames] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Exact RdrNames are generated by Template Haskell. See Note [Binders -in Template Haskell] in Convert. +Exact RdrNames are generated by: + +* Template Haskell (See Note [Binders in Template Haskell] in GHC.ThToHs) +* Derived instances (See Note [Auxiliary binders] in GHC.Tc.Deriv.Generate) For data types and classes have Exact system Names in the binding positions for constructors, TyCons etc. For example [d| data T = MkT Int |] -when we splice in and Convert to HsSyn RdrName, we'll get +when we splice in and convert to HsSyn RdrName, we'll get data (Exact (system Name "T")) = (Exact (system Name "MkT")) ... -These System names are generated by Convert.thRdrName +These System names are generated by GHC.ThToHs.thRdrName But, constructors and the like need External Names, not System Names! So we do the following |