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| author |  Hugo Herbelin <Hugo.Herbelin@inria.fr> | 2016-09-10 11:31:01 +0200 |
|---|---|---|
| committer | Hugo Herbelin <Hugo.Herbelin@inria.fr> | 2016-09-10 11:34:08 +0200 |
| commit | 43104a0b94e42fb78764b5d1365ca1e85a158508 (patch) | |
| tree | 68943411671327facf236b25c6cabd63b96f90d0 /pretyping/typing.ml | |
| parent | 7a037b8c1de11b18d47b01e5b0262090f32bfc40 (diff) | |
Fixing #5077 (failure on typing a fixpoint with evars in its type).
Typing.type_of was using conversion for types of fixpoints while it
could have used unification.
Diffstat (limited to 'pretyping/typing.ml')
| -rw-r--r-- | pretyping/typing.ml | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/pretyping/typing.ml b/pretyping/typing.ml index eb16628b1..bb3f19859 100644 --- a/pretyping/typing.ml +++ b/pretyping/typing.ml @@ -126,6 +126,16 @@ let e_judge_of_case env evdref ci pj cj lfj = { uj_val = mkCase (ci, pj.uj_val, cj.uj_val, Array.map j_val lfj); uj_type = rslty } +let check_type_fixpoint loc env evdref lna lar vdefj = + let lt = Array.length vdefj in + if Int.equal (Array.length lar) lt then + for i = 0 to lt-1 do + if not (Evarconv.e_cumul env evdref (vdefj.(i)).uj_type + (lift lt lar.(i))) then + Pretype_errors.error_ill_typed_rec_body_loc loc env !evdref + i lna vdefj lar + done + (* FIXME: might depend on the level of actual parameters!*) let check_allowed_sort env sigma ind c p = let pj = Retyping.get_judgment_of env sigma p in @@ -263,7 +273,7 @@ and execute_recdef env evdref (names,lar,vdef) = let env1 = push_rec_types (names,lara,vdef) env in let vdefj = execute_array env1 evdref vdef in let vdefv = Array.map j_val vdefj in - let _ = type_fixpoint env1 names lara vdefj in + let _ = check_type_fixpoint Loc.ghost env1 evdref names lara vdefj in (names,lara,vdefv) and execute_array env evdref = Array.map (execute env evdref) |