diff options
| -rw-r--r-- | pretyping/pretyping.ml | 8 | ||||
| -rw-r--r-- | test-suite/bugs/closed/bug_12970.v | 4 |
2 files changed, 7 insertions, 5 deletions
diff --git a/pretyping/pretyping.ml b/pretyping/pretyping.ml index 8f52018a44..268ad2ae56 100644 --- a/pretyping/pretyping.ml +++ b/pretyping/pretyping.ml @@ -857,7 +857,7 @@ struct typing the argument, so we replace it by an existential variable *) let sigma, c_hole = new_evar env sigma ~src:(loc,Evar_kinds.InternalHole) c1 in - (sigma, make_judge c_hole c1), (c_hole, c, trace) :: bidiargs + (sigma, make_judge c_hole c1), (c_hole, c1, c, trace) :: bidiargs else let tycon = Some c1 in pretype tycon env sigma c, bidiargs @@ -886,12 +886,10 @@ struct let sigma, resj, resj_before_bidi, bidiargs = apply_rec env sigma 0 fj fj candargs [] args in let sigma, resj = refresh_template env sigma resj in let sigma, resj, otrace = inh_conv_coerce_to_tycon ?loc ~program_mode resolve_tc env sigma resj tycon in - let refine_arg n (sigma,t) (newarg,origarg,trace) = + let refine_arg n (sigma,t) (newarg,ty,origarg,trace) = (* Refine an argument (originally `origarg`) represented by an evar (`newarg`) to use typing information from the context *) - (* Recover the expected type of the argument *) - let ty = Retyping.get_type_of !!env sigma newarg in - (* Type the argument using this expected type *) + (* Type the argument using the expected type *) let sigma, j = pretype (Some ty) env sigma origarg in (* Unify the (possibly refined) existential variable with the (typechecked) original value *) diff --git a/test-suite/bugs/closed/bug_12970.v b/test-suite/bugs/closed/bug_12970.v new file mode 100644 index 0000000000..69ce7ec2c2 --- /dev/null +++ b/test-suite/bugs/closed/bug_12970.v @@ -0,0 +1,4 @@ +Arguments existT _ & _ _. + +Definition f := fun X (A : X -> Type) (P : forall x, A x -> Type) x y => + existT (fun f => forall x, P x (f x)) x y : sigT (fun f => forall x, P x (f x)). |