\begin{code}
type UnfoldEnv = IdEnv (Name{-new name-}, Bool {-show unfolding-})
+ -- maps each top-level Id to its new Name (the Id is tidied in step 2)
+ -- The Unique is unchanged. If the new Id is external, it will be
+ -- visible in the interface file.
+ --
+ -- Bool => expose unfolding or not.
chooseExternalIds :: HscEnv
-> TypeEnv
-> Bool
-> [CoreBind]
-> IO (UnfoldEnv, TidyOccEnv)
- -- maps top-level Ids to new, renamed, Ids.
- -- If the new Id is external, it will be visible
- -- in the interface file.
- -- Bool => expose unfolding or not.
-- Step 1 from the notes above
chooseExternalIds hsc_env type_env mod omit_prags binds
-> CoreBind
-> (TidyEnv, CoreBind)
-tidyTopBind this_pkg unfold_env (occ_env1,subst1) (NonRec bndr rhs)
+tidyTopBind this_pkg unfold_env (occ_env,subst1) (NonRec bndr rhs)
= (tidy_env2, NonRec bndr' rhs')
where
Just (name',show_unfold) = lookupVarEnv unfold_env bndr
caf_info = hasCafRefs this_pkg subst1 (idArity bndr) rhs
(bndr', rhs') = tidyTopPair show_unfold tidy_env2 caf_info name' (bndr, rhs)
subst2 = extendVarEnv subst1 bndr bndr'
- tidy_env2 = (occ_env1, subst2)
+ tidy_env2 = (occ_env, subst2)
-tidyTopBind this_pkg unfold_env (occ_env1,subst1) (Rec prs)
+tidyTopBind this_pkg unfold_env (occ_env,subst1) (Rec prs)
= (tidy_env2, Rec prs')
where
prs' = [ tidyTopPair show_unfold tidy_env2 caf_info name' (id,rhs)
]
subst2 = extendVarEnvList subst1 (bndrs `zip` map fst prs')
- tidy_env2 = (occ_env1, subst2)
+ tidy_env2 = (occ_env, subst2)
bndrs = map fst prs