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| author |  herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2001-01-18 23:39:09 +0000 |
|---|---|---|
| committer | herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2001-01-18 23:39:09 +0000 |
| commit | cf31d668a077e49ca0f4a9886769b811c92a6d16 (patch) | |
| tree | f078b5ba69cd460663114c3d5f2d5e9f03117d58 /toplevel | |
| parent | bf1d33dfc394b7cf2203ea57336d5e9c6483260f (diff) | |
Bug Identity Coercion
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@1255 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'toplevel')
| -rw-r--r-- | toplevel/class.ml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/toplevel/class.ml b/toplevel/class.ml index b6824dac7..37ef4eb92 100644 --- a/toplevel/class.ml +++ b/toplevel/class.ml @@ -265,7 +265,7 @@ let build_id_coercion idf_opt ids = (Typing.type_of env Evd.empty val_f) typ_f with _ -> error ("cannot be defined as coercion - "^ - "may be a bad number of arguments") + "maybe a bad number of arguments") in let idf = match idf_opt with @@ -274,8 +274,10 @@ let build_id_coercion idf_opt ids = id_of_string ("Id_"^(string_of_id ids)^"_"^ (string_of_class (fst (constructor_at_head t)))) in - let constr_entry = - { const_entry_body = val_f; const_entry_type = None } in + let constr_entry = (* Cast is necessary to express [val_f] is identity *) + + { const_entry_body = mkCast (val_f, typ_f); + const_entry_type = None } in declare_constant idf (ConstantEntry constr_entry,NeverDischarge,false); idf |