diff options
| author | soubiran | 2010-01-06 10:24:41 +0000 |
|---|---|---|
| committer | soubiran | 2010-01-06 10:24:41 +0000 |
| commit | 0c260ba25423ec1c142296f19c3009fa0702819a (patch) | |
| tree | c5b784ce16fb76bdb26c89e71ce58d363f70b292 /kernel | |
| parent | 82791d73beaaeee5eab1fec317c689deb29f0a49 (diff) | |
Patch on subtyping check of opaque constants.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12631 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/subtyping.ml | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/kernel/subtyping.ml b/kernel/subtyping.ml index 41f4c640ce..2a5f35f1a4 100644 --- a/kernel/subtyping.ml +++ b/kernel/subtyping.ml @@ -254,6 +254,8 @@ let check_constant cst env mp1 l info1 cb2 spec2 subst1 subst2 = let con = make_con mp1 empty_dirpath l in let cst = if cb2.const_opaque then + (* In this case we compare opaque definitions, we need to bypass + the opacity and do a delta step*) match cb2.const_body with | None -> cst | Some lc2 -> @@ -262,8 +264,11 @@ let check_constant cst env mp1 l info1 cb2 spec2 subst1 subst2 = | Some lc1 -> let c = Declarations.force lc1 in begin - match (kind_of_term c) with - Const n -> + match (kind_of_term c),(kind_of_term c2) with + Const n1,Const n2 when (eq_constant n1 n2) -> c + (* c1 may have been strenghtened + we need to unfold it*) + | Const n,_ -> let cb = subst_const_body subst1 (lookup_constant n env) in (match cb.const_opaque, @@ -271,7 +276,7 @@ let check_constant cst env mp1 l info1 cb2 spec2 subst1 subst2 = | true, Some lc1 -> Declarations.force lc1 | _,_ -> c) - | _ -> c + | _ ,_-> c end | None -> mkConst con in |