diff options
| author |  Matthieu Sozeau <matthieu.sozeau@inria.fr> | 2014-09-17 11:42:05 +0200 |
|---|---|---|
| committer | Matthieu Sozeau <matthieu.sozeau@inria.fr> | 2014-09-17 12:37:02 +0200 |
| commit | 9de1edd730eeb3cada742a27a36bc70178eda6d8 (patch) | |
| tree | 341d93576b40d8fc4bb2e6abd6096a69df6b09a6 /test-suite/bugs/closed/3633.v | |
| parent | d34e1eed232c84590ddb80d70db9f7f7cf13584a (diff) | |
While resolving typeclass evars in clenv, touch only the ones that appear in the
clenv's value and type, ensuring we don't try to solve unrelated
goals (fixes bug#3633).
Diffstat (limited to 'test-suite/bugs/closed/3633.v')
| -rw-r--r-- | test-suite/bugs/closed/3633.v | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/3633.v b/test-suite/bugs/closed/3633.v new file mode 100644 index 000000000..6f89ef6db --- /dev/null +++ b/test-suite/bugs/closed/3633.v @@ -0,0 +1,21 @@ +Set Typeclasses Strict Resolution. +Class Contr (A : Type) := { center : A }. +Definition foo {A} `{Contr A} : A. +Proof. + apply center. + Undo. + (* Ensure the constraints are solved indepentently, otherwise a frozen ?A + makes a search for Contr ?A fail when finishing to apply (fun x => x) *) + apply (fun x => x), center. + +(* Toplevel input, characters 7-17: +Error: +Unable to satisfy the following constraints: +In environment: +A : Type +H : Contr A + +?A : "Type" +?Contr : "Contr ?X8" + + *)
\ No newline at end of file |