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-rw-r--r--pretyping/pretype_errors.ml5
-rw-r--r--pretyping/pretype_errors.mli1
2 files changed, 4 insertions, 2 deletions
diff --git a/pretyping/pretype_errors.ml b/pretyping/pretype_errors.ml
index cf5b08c58f..b0715af734 100644
--- a/pretyping/pretype_errors.ml
+++ b/pretyping/pretype_errors.ml
@@ -14,15 +14,16 @@ open Type_errors
type unification_error =
| OccurCheck of existential_key * constr
- | NotClean of existential * env * constr
+ | NotClean of existential * env * constr (* Constr is a variable not in scope *)
| NotSameArgSize
| NotSameHead
| NoCanonicalStructure
- | ConversionFailed of env * constr * constr
+ | ConversionFailed of env * constr * constr (* Non convertible closed terms *)
| MetaOccurInBody of existential_key
| InstanceNotSameType of existential_key * env * types * types
| UnifUnivInconsistency of Univ.univ_inconsistency
| CannotSolveConstraint of Evd.evar_constraint * unification_error
+ | ProblemBeyondCapabilities
type position = (Id.t * Locus.hyp_location_flag) option
diff --git a/pretyping/pretype_errors.mli b/pretyping/pretype_errors.mli
index f617df9ee7..880f48e5f9 100644
--- a/pretyping/pretype_errors.mli
+++ b/pretyping/pretype_errors.mli
@@ -24,6 +24,7 @@ type unification_error =
| InstanceNotSameType of existential_key * env * types * types
| UnifUnivInconsistency of Univ.univ_inconsistency
| CannotSolveConstraint of Evd.evar_constraint * unification_error
+ | ProblemBeyondCapabilities
type position = (Id.t * Locus.hyp_location_flag) option