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| author | herbelin | 2010-06-13 11:09:55 +0000 |
|---|---|---|
| committer | herbelin | 2010-06-13 11:09:55 +0000 |
| commit | 5011e3387172d1d7151019d5d3f64cb92abcc898 (patch) | |
| tree | 7091bbcfa7964e9ebd5386eec3f46900baaa285e /pretyping/pretype_errors.ml | |
| parent | 928d186f5dcc649793ea9f3dd8f880d93786dfe7 (diff) | |
Addressed bug #2310 and replaced anomaly "unknown meta" raised by "refine"
by a regular error in v8.3.
Example behaves better in trunk thanks to new proof engine. In fact,
there are two distinct solutions to a unification problem: should
"refine" commit to one of them or leave the problem open? For trunk,
improved the unification error message by enforcing nf_evar (but at
some time, nf_evar in error messages should move to himsg because it
is costly when errors are used for backtracking).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13127 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'pretyping/pretype_errors.ml')
| -rw-r--r-- | pretyping/pretype_errors.ml | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/pretyping/pretype_errors.ml b/pretyping/pretype_errors.ml index e92ab3206a..13b5704ef0 100644 --- a/pretyping/pretype_errors.ml +++ b/pretyping/pretype_errors.ml @@ -165,6 +165,7 @@ let error_unsolvable_implicit loc env sigma evi e explain = (PretypeError (env_ise sigma env, UnsolvableImplicit (evi, e, explain))) let error_cannot_unify env sigma (m,n) = + let m = nf_evar sigma m and n = nf_evar sigma n in raise (PretypeError (env_ise sigma env,CannotUnify (m,n))) let error_cannot_unify_local env sigma (m,n,sn) = |