diff options
| author | Hugo Herbelin | 2015-07-16 09:32:36 +0200 |
|---|---|---|
| committer | Hugo Herbelin | 2015-07-16 09:40:08 +0200 |
| commit | 93579407f5795c117d6c6f1399396b690f80d723 (patch) | |
| tree | 701aad6c0994ae5e533d86847b67e8ea827abf30 /pretyping | |
| parent | c57c7edbe517851c7309112f6eb5d8297f03e000 (diff) | |
Fixing anomaly #3743 while printing an error message involving evar constraints.
Indeed, the name of a bound variable was lost when unifying under a Prod in
evarconv.
The error message for "Unable to satisfy the following constraints" is
still to be improved though.
Diffstat (limited to 'pretyping')
| -rw-r--r-- | pretyping/evarconv.ml | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/pretyping/evarconv.ml b/pretyping/evarconv.ml index 97b1b16455..64d1345c1f 100644 --- a/pretyping/evarconv.ml +++ b/pretyping/evarconv.ml @@ -726,12 +726,13 @@ and evar_eqappr_x ?(rhs_is_already_stuck = false) ts env evd pbty UnifFailure (evd,UnifUnivInconsistency p) | e when Errors.noncritical e -> UnifFailure (evd,NotSameHead)) - | Prod (n,c1,c'1), Prod (_,c2,c'2) when app_empty -> + | Prod (n1,c1,c'1), Prod (n2,c2,c'2) when app_empty -> ise_and evd [(fun i -> evar_conv_x ts env i CONV c1 c2); (fun i -> let c = nf_evar i c1 in - evar_conv_x ts (push_rel (n,None,c) env) i pbty c'1 c'2)] + let na = Nameops.name_max n1 n2 in + evar_conv_x ts (push_rel (na,None,c) env) i pbty c'1 c'2)] | Rel x1, Rel x2 -> if Int.equal x1 x2 then |