diff options
Diffstat (limited to 'test-suite/success/Case13.v')
-rw-r--r-- | test-suite/success/Case13.v | 64 |
1 files changed, 50 insertions, 14 deletions
diff --git a/test-suite/success/Case13.v b/test-suite/success/Case13.v index 71c9191d..f19e24b8 100644 --- a/test-suite/success/Case13.v +++ b/test-suite/success/Case13.v @@ -1,33 +1,69 @@ (* Check coercions in patterns *) Inductive I : Set := - C1 : nat -> I -| C2 : I -> I. + | C1 : nat -> I + | C2 : I -> I. Coercion C1 : nat >-> I. (* Coercion at the root of pattern *) -Check [x]Cases x of (C2 n) => O | O => O | (S n) => n end. +Check (fun x => match x with + | C2 n => 0 + | O => 0 + | S n => n + end). (* Coercion not at the root of pattern *) -Check [x]Cases x of (C2 O) => O | _ => O end. +Check (fun x => match x with + | C2 O => 0 + | _ => 0 + end). (* Unification and coercions inside patterns *) -Check [x:(option nat)]Cases x of None => O | (Some O) => O | _ => O end. +Check + (fun x : option nat => match x with + | None => 0 + | Some O => 0 + | _ => 0 + end). (* Coercion up to delta-conversion, and unification *) -Coercion somenat := (Some nat). -Check [x]Cases x of None => O | O => O | (S n) => n end. +Coercion somenat := Some (A:=nat). +Check (fun x => match x with + | None => 0 + | O => 0 + | S n => n + end). (* Coercions with parameters *) -Inductive listn : nat-> Set := - niln : (listn O) -| consn : (n:nat)nat->(listn n) -> (listn (S n)). +Inductive listn : nat -> Set := + | niln : listn 0 + | consn : forall n : nat, nat -> listn n -> listn (S n). Inductive I' : nat -> Set := - C1' : (n:nat) (listn n) -> (I' n) -| C2' : (n:nat) (I' n) -> (I' n). + | C1' : forall n : nat, listn n -> I' n + | C2' : forall n : nat, I' n -> I' n. Coercion C1' : listn >-> I'. -Check [x:(I' O)]Cases x of (C2' _ _) => O | niln => O | _ => O end. -Check [x:(I' O)]Cases x of (C2' _ niln) => O | _ => O end. +Check (fun x : I' 0 => match x with + | C2' _ _ => 0 + | niln => 0 + | _ => 0 + end). +Check (fun x : I' 0 => match x with + | C2' _ niln => 0 + | _ => 0 + end). + +(* Check insertion of coercions around matched subterm *) + +Parameter A:Set. +Parameter f:> A -> nat. + +Inductive J : Set := D : A -> J. + +Check (fun x => match x with + | D 0 => 0 + | D _ => 1 + end). + |