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[Merged by Bors] - chore(tactic/norm_cast): minor cleanup #10993

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[Merged by Bors] - chore(tactic/norm_cast): minor cleanup #10993

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9 changes: 4 additions & 5 deletions src/tactic/norm_cast.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -170,7 +170,7 @@ meta instance : inhabited norm_cast_cache := ⟨empty_cache⟩
/-- `add_elim cache e` adds `e` as an `elim` lemma to `cache`. -/
meta def add_elim (cache : norm_cast_cache) (e : expr) : tactic norm_cast_cache :=
do
new_up ← simp_lemmas.add cache.up e,
new_up ← cache.up.add e,
return
{ up := new_up,
down := cache.down,
Expand All @@ -179,9 +179,8 @@ do
/-- `add_move cache e` adds `e` as a `move` lemma to `cache`. -/
meta def add_move (cache : norm_cast_cache) (e : expr) : tactic norm_cast_cache :=
do
ty ← infer_type e,
new_up ← cache.up.add e tt,
new_down ← simp_lemmas.add cache.down e,
new_down ← cache.down.add e,
return
{ up := new_up,
down := new_down,
Expand All @@ -190,8 +189,8 @@ do
/-- `add_squash cache e` adds `e` as an `squash` lemma to `cache`. -/
meta def add_squash (cache : norm_cast_cache) (e : expr) : tactic norm_cast_cache :=
do
new_squash ← simp_lemmas.add cache.squash e,
new_down ← simp_lemmas.add cache.down e,
new_squash ← cache.squash.add e,
new_down ← cache.down.add e,
return
{ up := cache.up,
down := new_down,
Expand Down