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| author |  msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2009-05-20 20:07:00 +0000 |
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| committer | msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2009-05-20 20:07:00 +0000 |
| commit | 3b585059c16dbfbd0558196549d1130509611b35 (patch) | |
| tree | 39907abe6d4545724511d1194bac9661a8fd9f06 /pretyping/evarconv.ml | |
| parent | 8a6e3f648fa3171e3583e7c93c8967ac853a0d60 (diff) | |
Many fixes in unification:
- Restore failure when types don't unify in [unify_types] (undoing
r12075) but try to be more clever about cumulativity using the meta's
[instance_status] information.
- Fix second-order abstraction when K is not allowed to ensure that
we don't unify twice with the same subterm in
[w_unify_to_subterm_list]. A more elaborate solution would be give the
list to [w_unify_to_subterm] so that it keeps going when it finds an
already-found instantiation.
- Two "obvious" errors fixed: taking the wrong instance status when
unifying with a meta on the right and forgoting type equations in
[w_merge].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12136 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'pretyping/evarconv.ml')
0 files changed, 0 insertions, 0 deletions