diff options
author | Benjamin Barenblat <bbaren@debian.org> | 2018-12-29 14:31:27 -0500 |
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committer | Benjamin Barenblat <bbaren@debian.org> | 2018-12-29 14:31:27 -0500 |
commit | 9043add656177eeac1491a73d2f3ab92bec0013c (patch) | |
tree | 2b0092c84bfbf718eca10c81f60b2640dc8cab05 /test-suite/bugs/closed/5346.v | |
parent | a4c7f8bd98be2a200489325ff7c5061cf80ab4f3 (diff) |
Imported Upstream version 8.8.2upstream/8.8.2
Diffstat (limited to 'test-suite/bugs/closed/5346.v')
-rw-r--r-- | test-suite/bugs/closed/5346.v | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/5346.v b/test-suite/bugs/closed/5346.v new file mode 100644 index 00000000..0118c187 --- /dev/null +++ b/test-suite/bugs/closed/5346.v @@ -0,0 +1,29 @@ +Inductive comp : Type -> Type := +| Ret {T} : forall (v:T), comp T +| Bind {T T'} : forall (p: comp T') (p': T' -> comp T), comp T. + +Notation "'do' x .. y <- p1 ; p2" := + (Bind p1 (fun x => .. (fun y => p2) ..)) + (at level 60, right associativity, + x binder, y binder). + +Definition Fst1 A B (p: comp (A*B)) : comp A := + do '(a, b) <- p; + Ret a. + +Definition Fst2 A B (p: comp (A*B)) : comp A := + match tt with + | _ => Bind p (fun '(a, b) => Ret a) + end. + +Definition Fst3 A B (p: comp (A*B)) : comp A := + match tt with + | _ => do a <- p; + Ret (fst a) + end. + +Definition Fst A B (p: comp (A * B)) : comp A := + match tt with + | _ => do '(a, b) <- p; + Ret a + end. |