diff options
| author | filliatr | 1999-12-07 14:56:36 +0000 |
|---|---|---|
| committer | filliatr | 1999-12-07 14:56:36 +0000 |
| commit | f2da732ffd5db2b93a2c8120c668f8b2f6068d3b (patch) | |
| tree | 6cf46158c757cb654c241728eed3ea03bd04d0d0 /kernel/typeops.ml | |
| parent | 59263ca55924e2f43097ae2296f541b153981bf8 (diff) | |
debuggage inductifs (suite) / compilation Dhyp et Auto (mais pas linkes
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@220 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'kernel/typeops.ml')
| -rw-r--r-- | kernel/typeops.ml | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/typeops.ml b/kernel/typeops.ml index 255e8d7aa5..46dd750781 100644 --- a/kernel/typeops.ml +++ b/kernel/typeops.ml @@ -954,3 +954,19 @@ let control_only_guard env sigma = | DLAMV(_,v) -> Array.iter control_rec v in control_rec + +(* [keep_hyps sign ids] keeps the part of the signature [sign] which + contains the variables of the set [ids], and recursively the variables + contained in the types of the needed variables. *) + +let keep_hyps sign needed = + rev_sign + (fst (it_sign + (fun ((hyps,globs) as sofar) id a -> + if Idset.mem id globs then + (add_sign (id,a) hyps, + Idset.union (global_vars_set a.body) globs) + else + sofar) + (nil_sign,needed) sign)) + |