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author | Stephane Glondu <steph@glondu.net> | 2013-05-08 18:03:54 +0200 |
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committer | Stephane Glondu <steph@glondu.net> | 2013-05-08 18:03:54 +0200 |
commit | db38bb4ad9aff74576d3b7f00028d48f0447d5bd (patch) | |
tree | 09dafc3e5c7361d3a28e93677eadd2b7237d4f9f /test-suite/bugs/opened/shouldnotfail/2310.v | |
parent | 6e34b272d789455a9be589e27ad3a998cf25496b (diff) | |
parent | 499a11a45b5711d4eaabe84a80f0ad3ae539d500 (diff) |
Merge branch 'experimental/upstream' into upstream
Diffstat (limited to 'test-suite/bugs/opened/shouldnotfail/2310.v')
-rw-r--r-- | test-suite/bugs/opened/shouldnotfail/2310.v | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test-suite/bugs/opened/shouldnotfail/2310.v b/test-suite/bugs/opened/shouldnotfail/2310.v new file mode 100644 index 00000000..8d1a5149 --- /dev/null +++ b/test-suite/bugs/opened/shouldnotfail/2310.v @@ -0,0 +1,17 @@ +(* Dependent higher-order hole in "refine" (simplified version) *) + +Set Implicit Arguments. + +Inductive Nest t := Cons : Nest (prod t t) -> Nest t. + +Definition cast A x y Heq P H := @eq_rect A x P H y Heq. + +Definition replace a (y:Nest (prod a a)) : a = a -> Nest a. + +(* This used to raise an anomaly Unknown Meta in 8.2 and 8.3beta. + It raises a regular error in 8.3 and almost succeeds with the new + proof engine: there are two solutions to a unification problem + (P:=\a.Nest (prod a a) and P:=\_.Nest (prod a a)) and refine should either + leave P as subgoal or choose itself one solution *) + +intros. refine (Cons (cast H _ y)). |