diff options
Diffstat (limited to 'tests/fstar/misc/Paper.fst')
| -rw-r--r-- | tests/fstar/misc/Paper.fst | 87 |
1 files changed, 40 insertions, 47 deletions
diff --git a/tests/fstar/misc/Paper.fst b/tests/fstar/misc/Paper.fst index 14bc59e8..c6082929 100644 --- a/tests/fstar/misc/Paper.fst +++ b/tests/fstar/misc/Paper.fst @@ -5,40 +5,36 @@ open Primitives #set-options "--z3rlimit 50 --fuel 1 --ifuel 1" -(** [paper::ref_incr]: merged forward/backward function - (there is a single backward function, and the forward function returns ()) +(** [paper::ref_incr]: Source: 'src/paper.rs', lines 4:0-4:28 *) let ref_incr (x : i32) : result i32 = i32_add x 1 -(** [paper::test_incr]: forward function +(** [paper::test_incr]: Source: 'src/paper.rs', lines 8:0-8:18 *) let test_incr : result unit = - let* x = ref_incr 0 in if not (x = 1) then Fail Failure else Return () + let* i = ref_incr 0 in if not (i = 1) then Fail Failure else Return () (** Unit test for [paper::test_incr] *) let _ = assert_norm (test_incr = Return ()) -(** [paper::choose]: forward function +(** [paper::choose]: Source: 'src/paper.rs', lines 15:0-15:70 *) -let choose (t : Type0) (b : bool) (x : t) (y : t) : result t = - if b then Return x else Return y +let choose + (t : Type0) (b : bool) (x : t) (y : t) : result (t & (t -> result (t & t))) = + if b + then let back_'a = fun ret -> Return (ret, y) in Return (x, back_'a) + else let back_'a = fun ret -> Return (x, ret) in Return (y, back_'a) -(** [paper::choose]: backward function 0 - Source: 'src/paper.rs', lines 15:0-15:70 *) -let choose_back - (t : Type0) (b : bool) (x : t) (y : t) (ret : t) : result (t & t) = - if b then Return (ret, y) else Return (x, ret) - -(** [paper::test_choose]: forward function +(** [paper::test_choose]: Source: 'src/paper.rs', lines 23:0-23:20 *) let test_choose : result unit = - let* z = choose i32 true 0 0 in - let* z0 = i32_add z 1 in - if not (z0 = 1) + let* (z, choose_back) = choose i32 true 0 0 in + let* z1 = i32_add z 1 in + if not (z1 = 1) then Fail Failure else - let* (x, y) = choose_back i32 true 0 0 z0 in + let* (x, y) = choose_back z1 in if not (x = 1) then Fail Failure else if not (y = 0) then Fail Failure else Return () @@ -52,31 +48,28 @@ type list_t (t : Type0) = | List_Cons : t -> list_t t -> list_t t | List_Nil : list_t t -(** [paper::list_nth_mut]: forward function - Source: 'src/paper.rs', lines 42:0-42:67 *) -let rec list_nth_mut (t : Type0) (l : list_t t) (i : u32) : result t = - begin match l with - | List_Cons x tl -> - if i = 0 then Return x else let* i0 = u32_sub i 1 in list_nth_mut t tl i0 - | List_Nil -> Fail Failure - end - -(** [paper::list_nth_mut]: backward function 0 +(** [paper::list_nth_mut]: Source: 'src/paper.rs', lines 42:0-42:67 *) -let rec list_nth_mut_back - (t : Type0) (l : list_t t) (i : u32) (ret : t) : result (list_t t) = +let rec list_nth_mut + (t : Type0) (l : list_t t) (i : u32) : + result (t & (t -> result (list_t t))) + = begin match l with | List_Cons x tl -> if i = 0 - then Return (List_Cons ret tl) + then + let back_'a = fun ret -> Return (List_Cons ret tl) in Return (x, back_'a) else - let* i0 = u32_sub i 1 in - let* tl0 = list_nth_mut_back t tl i0 ret in - Return (List_Cons x tl0) + let* i1 = u32_sub i 1 in + let* (x1, list_nth_mut_back) = list_nth_mut t tl i1 in + let back_'a = + fun ret -> let* tl1 = list_nth_mut_back ret in Return (List_Cons x tl1) + in + Return (x1, back_'a) | List_Nil -> Fail Failure end -(** [paper::sum]: forward function +(** [paper::sum]: Source: 'src/paper.rs', lines 57:0-57:32 *) let rec sum (l : list_t i32) : result i32 = begin match l with @@ -84,27 +77,27 @@ let rec sum (l : list_t i32) : result i32 = | List_Nil -> Return 0 end -(** [paper::test_nth]: forward function +(** [paper::test_nth]: Source: 'src/paper.rs', lines 68:0-68:17 *) let test_nth : result unit = let l = List_Nil in - let l0 = List_Cons 3 l in - let l1 = List_Cons 2 l0 in - let* x = list_nth_mut i32 (List_Cons 1 l1) 2 in - let* x0 = i32_add x 1 in - let* l2 = list_nth_mut_back i32 (List_Cons 1 l1) 2 x0 in - let* i = sum l2 in + let l1 = List_Cons 3 l in + let l2 = List_Cons 2 l1 in + let* (x, list_nth_mut_back) = list_nth_mut i32 (List_Cons 1 l2) 2 in + let* x1 = i32_add x 1 in + let* l3 = list_nth_mut_back x1 in + let* i = sum l3 in if not (i = 7) then Fail Failure else Return () (** Unit test for [paper::test_nth] *) let _ = assert_norm (test_nth = Return ()) -(** [paper::call_choose]: forward function +(** [paper::call_choose]: Source: 'src/paper.rs', lines 76:0-76:44 *) let call_choose (p : (u32 & u32)) : result u32 = let (px, py) = p in - let* pz = choose u32 true px py in - let* pz0 = u32_add pz 1 in - let* (px0, _) = choose_back u32 true px py pz0 in - Return px0 + let* (pz, choose_back) = choose u32 true px py in + let* pz1 = u32_add pz 1 in + let* (px1, _) = choose_back pz1 in + Return px1 |