diff options
author | herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2006-10-17 16:39:46 +0000 |
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committer | herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2006-10-17 16:39:46 +0000 |
commit | 1853b9a3fa77f29f41bc3cf131d691a7690e258b (patch) | |
tree | 7e3c697f2204988d44d95b8b1fd47e7d3da2f6ae /kernel | |
parent | b967f487c538a119a51a95f3669b5f6937a69357 (diff) |
Clarification des contraintes sur le contexte de paramètres des
inductifs dans le test de sous-typage (exigence du même nombre
d'arguments uniformes attendus mais pas d'exigence spéciale sur les
définitions locales du contexte à partir du moment où les types et
constructeurs sont convertibles quand généralisés par rapport au
contexte de paramètres)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9247 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/subtyping.ml | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/subtyping.ml b/kernel/subtyping.ml index 0acd37da4..c94219316 100644 --- a/kernel/subtyping.ml +++ b/kernel/subtyping.ml @@ -94,7 +94,7 @@ let check_inductive cst env msid1 l info1 mib2 spec2 = (* listrec ignored *) (* finite done *) (* nparams done *) - (* params_ctxt done *) + (* params_ctxt done because part of the inductive types *) (* Don't check the sort of the type if polymorphic *) let cst = check_conv cst conv env (type_of_inductive (mib1,p1)) (type_of_inductive (mib2,p2)) in @@ -114,9 +114,12 @@ let check_inductive cst env msid1 l info1 mib2 spec2 = assert (Array.length mib1.mind_packets >= 1 && Array.length mib2.mind_packets >= 1); - (* TODO: we should allow renaming of parameters at least ! *) + (* Check that the expected numbers of uniform parameters are the same *) + (* No need to check the contexts of parameters: it is checked *) + (* at the time of checking the inductive arities in check_packet. *) + (* Notice that we don't expect the local definitions to match: only *) + (* the inductive types and constructors types have to be convertible *) check (fun mib -> mib.mind_nparams); - check (fun mib -> mib.mind_params_ctxt); begin match mib2.mind_equiv with |