diff options
Diffstat (limited to 'compiler/GHC/Tc/Module.hs')
| -rw-r--r-- | compiler/GHC/Tc/Module.hs | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/compiler/GHC/Tc/Module.hs b/compiler/GHC/Tc/Module.hs index 6dfcf5d357..06270c1848 100644 --- a/compiler/GHC/Tc/Module.hs +++ b/compiler/GHC/Tc/Module.hs @@ -2171,25 +2171,6 @@ tcRnStmt hsc_env rdr_stmt global_ids <- mapM (externaliseAndTidyId this_mod) zonked_ids ; -- Note [Interactively-bound Ids in GHCi] in GHC.Driver.Env -{- --------------------------------------------- - At one stage I removed any shadowed bindings from the type_env; - they are inaccessible but might, I suppose, cause a space leak if we leave them there. - However, with Template Haskell they aren't necessarily inaccessible. Consider this - GHCi session - Prelude> let f n = n * 2 :: Int - Prelude> fName <- runQ [| f |] - Prelude> $(return $ AppE fName (LitE (IntegerL 7))) - 14 - Prelude> let f n = n * 3 :: Int - Prelude> $(return $ AppE fName (LitE (IntegerL 7))) - In the last line we use 'fName', which resolves to the *first* 'f' - in scope. If we delete it from the type env, GHCi crashes because - it doesn't expect that. - - Hence this code is commented out - --------------------------------------------------- -} - traceOptTcRn Opt_D_dump_tc (vcat [text "Bound Ids" <+> pprWithCommas ppr global_ids, text "Typechecked expr" <+> ppr zonked_expr]) ; |