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-rw-r--r--compiler/Extract.ml38
-rw-r--r--compiler/ExtractTypes.ml78
-rw-r--r--compiler/PureUtils.ml35
-rw-r--r--tests/fstar/array/Array.fst387
-rw-r--r--tests/fstar/traits/Primitives.fst713
-rw-r--r--tests/fstar/traits/Traits.fst401
6 files changed, 1616 insertions, 36 deletions
diff --git a/compiler/Extract.ml b/compiler/Extract.ml
index b8cb38bb..0805ed96 100644
--- a/compiler/Extract.ml
+++ b/compiler/Extract.ml
@@ -2148,10 +2148,16 @@ let extract_trait_decl_method_items (ctx : extraction_ctx) (fmt : F.formatter)
let ctx, type_params, cg_params, trait_clauses =
ctx_add_generic_params generics ctx
in
- let use_forall = generics <> empty_generic_params in
+ let backend_uses_forall =
+ match !backend with Coq | Lean -> true | FStar | HOL4 -> false
+ in
+ let generics_not_empty = generics <> empty_generic_params in
+ let use_forall = generics_not_empty && backend_uses_forall in
+ let use_arrows = generics_not_empty && not backend_uses_forall in
let use_forall_use_sep = false in
extract_generic_params ctx fmt TypeDeclId.Set.empty ~use_forall
- ~use_forall_use_sep generics type_params cg_params trait_clauses;
+ ~use_forall_use_sep ~use_arrows generics type_params cg_params
+ trait_clauses;
if use_forall then F.pp_print_string fmt ",";
(* Extract the inputs and output *)
F.pp_print_space fmt ();
@@ -2189,6 +2195,12 @@ let extract_trait_decl (ctx : extraction_ctx) (fmt : F.formatter)
let qualif =
Option.get (ctx.fmt.type_decl_kind_to_qualif SingleNonRec (Some Struct))
in
+ (* When checking if the trait declaration is empty: we ignore the provided
+ methods, because for now they are extracted separately *)
+ let is_empty = trait_decl_is_empty { decl with provided_methods = [] } in
+ if !backend = FStar && not is_empty then (
+ F.pp_print_string fmt "noeq";
+ F.pp_print_space fmt ());
F.pp_print_string fmt qualif;
F.pp_print_space fmt ();
F.pp_print_string fmt decl_name;
@@ -2205,7 +2217,9 @@ let extract_trait_decl (ctx : extraction_ctx) (fmt : F.formatter)
F.pp_print_space fmt ();
(match !backend with
| Lean -> F.pp_print_string fmt "where"
+ | FStar -> if not is_empty then F.pp_print_string fmt "= {"
| _ -> F.pp_print_string fmt "{");
+ if !backend = FStar && is_empty then F.pp_print_string fmt "= unit";
(* Close the box for the name + generics *)
F.pp_close_box fmt ();
@@ -2268,15 +2282,15 @@ let extract_trait_decl (ctx : extraction_ctx) (fmt : F.formatter)
(fun (name, id) -> extract_trait_decl_method_items ctx fmt decl name id)
decl.required_methods;
+ (* Close the outer boxes for the definition *)
+ if !Config.backend <> Lean then F.pp_close_box fmt ();
(* Close the brackets *)
(match !Config.backend with
| Lean -> ()
| _ ->
- F.pp_print_space fmt ();
- F.pp_print_string fmt "}");
-
- (* Close the outer boxes for the definition *)
- if !Config.backend <> Lean then F.pp_close_box fmt ();
+ if (not (!backend = FStar)) || not is_empty then (
+ F.pp_print_space fmt ();
+ F.pp_print_string fmt "}"));
F.pp_close_box fmt ();
(* Add breaks to insert new lines between definitions *)
F.pp_print_break fmt 0 0
@@ -2405,8 +2419,13 @@ let extract_trait_impl (ctx : extraction_ctx) (fmt : F.formatter)
F.pp_print_space fmt ();
extract_trait_decl_ref ctx fmt TypeDeclId.Set.empty false impl.impl_trait;
+ (* When checking if the trait impl is empty: we ignore the provided
+ methods, because for now they are extracted separately *)
+ let is_empty = trait_impl_is_empty { impl with provided_methods = [] } in
+
F.pp_print_space fmt ();
if !Config.backend = Lean then F.pp_print_string fmt ":= {"
+ else if !Config.backend = FStar && is_empty then F.pp_print_string fmt "= ()"
else F.pp_print_string fmt "= {";
(* Close the box for the name + generics *)
@@ -2472,8 +2491,9 @@ let extract_trait_impl (ctx : extraction_ctx) (fmt : F.formatter)
(* Close the outer boxes for the definition, as well as the brackets *)
F.pp_close_box fmt ();
- F.pp_print_space fmt ();
- F.pp_print_string fmt "}";
+ if (not (!backend = FStar)) || not is_empty then (
+ F.pp_print_space fmt ();
+ F.pp_print_string fmt "}");
F.pp_close_box fmt ();
(* Add breaks to insert new lines between definitions *)
F.pp_print_break fmt 0 0
diff --git a/compiler/ExtractTypes.ml b/compiler/ExtractTypes.ml
index 699a0e96..a294d4ca 100644
--- a/compiler/ExtractTypes.ml
+++ b/compiler/ExtractTypes.ml
@@ -608,19 +608,6 @@ let mk_formatter (ctx : trans_ctx) (crate_name : string)
| Lean -> String.concat "." name
in
let get_type_name = get_name in
- let type_name_to_camel_case name =
- let name = get_type_name name in
- let name = List.map to_camel_case name in
- String.concat "" name
- in
- let type_name_to_snake_case name =
- let name = get_type_name name in
- let name = List.map to_snake_case name in
- let name = String.concat "_" name in
- match !backend with
- | FStar | Lean | HOL4 -> name
- | Coq -> capitalize_first_letter name
- in
let get_type_name_no_suffix name =
match !backend with
| FStar | Coq | HOL4 -> String.concat "_" (get_type_name name)
@@ -704,7 +691,10 @@ let mk_formatter (ctx : trans_ctx) (crate_name : string)
(* Remove the occurrences of '.' *)
String.concat "" (String.split_on_char '.' name)
in
- flatten_name (get_type_name trait_impl.name @ [ trait_decl ])
+ let name = flatten_name (get_type_name trait_impl.name @ [ trait_decl ]) in
+ match !backend with
+ | FStar -> StringUtils.lowercase_first_letter name
+ | Coq | HOL4 | Lean -> name
in
let trait_parent_clause_name (trait_decl : trait_decl) (clause : trait_clause)
@@ -715,12 +705,28 @@ let mk_formatter (ctx : trans_ctx) (crate_name : string)
else trait_decl_name trait_decl ^ "_" ^ clause
in
let trait_type_name (trait_decl : trait_decl) (item : string) : string =
- if !Config.record_fields_short_names then item
- else trait_decl_name trait_decl ^ "_" ^ item
+ let name =
+ if !Config.record_fields_short_names then item
+ else trait_decl_name trait_decl ^ "_" ^ item
+ in
+ (* Constants are usually all capital letters.
+ Some backends do not support field names starting with a capital letter,
+ and it may be weird to lowercase everything (especially as it may lead
+ to more name collisions): we add a prefix when necessary.
+ For instance, it gives: "U" -> "tU"
+ Note that for some backends we prepend the type name (because those backends
+ can't disambiguate fields coming from different ADTs if they have the same
+ names), and thus don't need to add a prefix starting with a lowercase.
+ *)
+ match !backend with FStar -> "t" ^ name | Coq | Lean | HOL4 -> name
in
let trait_const_name (trait_decl : trait_decl) (item : string) : string =
- if !Config.record_fields_short_names then item
- else trait_decl_name trait_decl ^ "_" ^ item
+ let name =
+ if !Config.record_fields_short_names then item
+ else trait_decl_name trait_decl ^ "_" ^ item
+ in
+ (* See [trait_type_name] *)
+ match !backend with FStar -> "c" ^ name | Coq | Lean | HOL4 -> name
in
let trait_method_name (trait_decl : trait_decl) (item : string) : string =
if !Config.record_fields_short_names then item
@@ -1832,18 +1838,24 @@ let extract_trait_self_clause (insert_req_space : unit -> unit)
*)
let extract_generic_params (ctx : extraction_ctx) (fmt : F.formatter)
(no_params_tys : TypeDeclId.Set.t) ?(use_forall = false)
- ?(use_forall_use_sep = true) ?(as_implicits : bool = false)
- ?(space : bool ref option = None) ?(trait_decl : trait_decl option = None)
- (generics : generic_params) (type_params : string list)
- (cg_params : string list) (trait_clauses : string list) : unit =
+ ?(use_forall_use_sep = true) ?(use_arrows = false)
+ ?(as_implicits : bool = false) ?(space : bool ref option = None)
+ ?(trait_decl : trait_decl option = None) (generics : generic_params)
+ (type_params : string list) (cg_params : string list)
+ (trait_clauses : string list) : unit =
let all_params = List.concat [ type_params; cg_params; trait_clauses ] in
(* HOL4 doesn't support const generics *)
assert (cg_params = [] || !backend <> HOL4);
let left_bracket (implicit : bool) =
- if implicit then F.pp_print_string fmt "{" else F.pp_print_string fmt "("
+ if implicit && !backend <> FStar then F.pp_print_string fmt "{"
+ else F.pp_print_string fmt "("
in
let right_bracket (implicit : bool) =
- if implicit then F.pp_print_string fmt "}" else F.pp_print_string fmt ")"
+ if implicit && !backend <> FStar then F.pp_print_string fmt "}"
+ else F.pp_print_string fmt ")"
+ in
+ let print_implicit_symbol (implicit : bool) =
+ if implicit && !backend = FStar then F.pp_print_string fmt "#" else ()
in
let insert_req_space () =
match space with
@@ -1871,6 +1883,7 @@ let extract_generic_params (ctx : extraction_ctx) (fmt : F.formatter)
left_bracket as_implicits;
List.iter
(fun s ->
+ print_implicit_symbol as_implicits;
F.pp_print_string fmt s;
F.pp_print_space fmt ())
type_params;
@@ -1878,7 +1891,10 @@ let extract_generic_params (ctx : extraction_ctx) (fmt : F.formatter)
F.pp_print_space fmt ();
F.pp_print_string fmt (type_keyword ());
(* ) *)
- right_bracket as_implicits);
+ right_bracket as_implicits;
+ if use_arrows then (
+ F.pp_print_space fmt ();
+ F.pp_print_string fmt "->"));
(* Print the const generic parameters *)
List.iter
(fun (var : const_generic_var) ->
@@ -1886,13 +1902,17 @@ let extract_generic_params (ctx : extraction_ctx) (fmt : F.formatter)
(* ( *)
left_bracket as_implicits;
let n = ctx_get_const_generic_var var.index ctx in
+ print_implicit_symbol as_implicits;
F.pp_print_string fmt n;
F.pp_print_space fmt ();
F.pp_print_string fmt ":";
F.pp_print_space fmt ();
extract_literal_type ctx fmt var.ty;
(* ) *)
- right_bracket as_implicits)
+ right_bracket as_implicits;
+ if use_arrows then (
+ F.pp_print_space fmt ();
+ F.pp_print_string fmt "->"))
const_generics);
(* Print the trait clauses *)
List.iter
@@ -1901,13 +1921,17 @@ let extract_generic_params (ctx : extraction_ctx) (fmt : F.formatter)
(* ( *)
left_bracket as_implicits;
let n = ctx_get_local_trait_clause clause.clause_id ctx in
+ print_implicit_symbol as_implicits;
F.pp_print_string fmt n;
F.pp_print_space fmt ();
F.pp_print_string fmt ":";
F.pp_print_space fmt ();
extract_trait_clause_type ctx fmt no_params_tys clause;
(* ) *)
- right_bracket as_implicits)
+ right_bracket as_implicits;
+ if use_arrows then (
+ F.pp_print_space fmt ();
+ F.pp_print_string fmt "->"))
trait_clauses
in
(* If we extract the generics for a provided method for a trait declaration
diff --git a/compiler/PureUtils.ml b/compiler/PureUtils.ml
index 4e44f252..3aeabffe 100644
--- a/compiler/PureUtils.ml
+++ b/compiler/PureUtils.ml
@@ -642,3 +642,38 @@ let trait_decl_get_method (trait_decl : trait_decl) (method_name : string) :
List.find (fun (s, _) -> s = method_name) trait_decl.provided_methods
in
{ is_provided = true; id = Option.get id }
+
+let trait_decl_is_empty (trait_decl : trait_decl) : bool =
+ let {
+ def_id = _;
+ name = _;
+ generics = _;
+ preds = _;
+ parent_clauses;
+ consts;
+ types;
+ required_methods;
+ provided_methods;
+ } =
+ trait_decl
+ in
+ parent_clauses = [] && consts = [] && types = [] && required_methods = []
+ && provided_methods = []
+
+let trait_impl_is_empty (trait_impl : trait_impl) : bool =
+ let {
+ def_id = _;
+ name = _;
+ impl_trait = _;
+ generics = _;
+ preds = _;
+ parent_trait_refs;
+ consts;
+ types;
+ required_methods;
+ provided_methods;
+ } =
+ trait_impl
+ in
+ parent_trait_refs = [] && consts = [] && types = [] && required_methods = []
+ && provided_methods = []
diff --git a/tests/fstar/array/Array.fst b/tests/fstar/array/Array.fst
new file mode 100644
index 00000000..341f5239
--- /dev/null
+++ b/tests/fstar/array/Array.fst
@@ -0,0 +1,387 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [array] *)
+module Array
+open Primitives
+
+#set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
+
+(** [array::AB] *)
+type aB_t = | AB_A : aB_t | AB_B : aB_t
+
+(** [array::incr]: merged forward/backward function
+ (there is a single backward function, and the forward function returns ()) *)
+let incr (x : u32) : result u32 =
+ u32_add x 1
+
+(** [array::array_to_shared_slice_]: forward function *)
+let array_to_shared_slice_ (t : Type0) (s : array t 32) : result (slice t) =
+ array_to_slice t 32 s
+
+(** [array::array_to_mut_slice_]: forward function *)
+let array_to_mut_slice_ (t : Type0) (s : array t 32) : result (slice t) =
+ array_to_slice t 32 s
+
+(** [array::array_to_mut_slice_]: backward function 0 *)
+let array_to_mut_slice__back
+ (t : Type0) (s : array t 32) (ret : slice t) : result (array t 32) =
+ array_from_slice t 32 s ret
+
+(** [array::array_len]: forward function *)
+let array_len (t : Type0) (s : array t 32) : result usize =
+ let* s0 = array_to_slice t 32 s in let i = slice_len t s0 in Return i
+
+(** [array::shared_array_len]: forward function *)
+let shared_array_len (t : Type0) (s : array t 32) : result usize =
+ let* s0 = array_to_slice t 32 s in let i = slice_len t s0 in Return i
+
+(** [array::shared_slice_len]: forward function *)
+let shared_slice_len (t : Type0) (s : slice t) : result usize =
+ let i = slice_len t s in Return i
+
+(** [array::index_array_shared]: forward function *)
+let index_array_shared (t : Type0) (s : array t 32) (i : usize) : result t =
+ array_index_usize t 32 s i
+
+(** [array::index_array_u32]: forward function *)
+let index_array_u32 (s : array u32 32) (i : usize) : result u32 =
+ array_index_usize u32 32 s i
+
+(** [array::index_array_copy]: forward function *)
+let index_array_copy (x : array u32 32) : result u32 =
+ array_index_usize u32 32 x 0
+
+(** [array::index_mut_array]: forward function *)
+let index_mut_array (t : Type0) (s : array t 32) (i : usize) : result t =
+ array_index_usize t 32 s i
+
+(** [array::index_mut_array]: backward function 0 *)
+let index_mut_array_back
+ (t : Type0) (s : array t 32) (i : usize) (ret : t) : result (array t 32) =
+ array_update_usize t 32 s i ret
+
+(** [array::index_slice]: forward function *)
+let index_slice (t : Type0) (s : slice t) (i : usize) : result t =
+ slice_index_usize t s i
+
+(** [array::index_mut_slice]: forward function *)
+let index_mut_slice (t : Type0) (s : slice t) (i : usize) : result t =
+ slice_index_usize t s i
+
+(** [array::index_mut_slice]: backward function 0 *)
+let index_mut_slice_back
+ (t : Type0) (s : slice t) (i : usize) (ret : t) : result (slice t) =
+ slice_update_usize t s i ret
+
+(** [array::slice_subslice_shared_]: forward function *)
+let slice_subslice_shared_
+ (x : slice u32) (y : usize) (z : usize) : result (slice u32) =
+ core_slice_index_Slice_index u32 (core_ops_range_Range usize)
+ (core_slice_index_Range_coresliceindexSliceIndexInst u32) x
+ { start = y; end_ = z }
+
+(** [array::slice_subslice_mut_]: forward function *)
+let slice_subslice_mut_
+ (x : slice u32) (y : usize) (z : usize) : result (slice u32) =
+ core_slice_index_Slice_index_mut u32 (core_ops_range_Range usize)
+ (core_slice_index_Range_coresliceindexSliceIndexInst u32) x
+ { start = y; end_ = z }
+
+(** [array::slice_subslice_mut_]: backward function 0 *)
+let slice_subslice_mut__back
+ (x : slice u32) (y : usize) (z : usize) (ret : slice u32) :
+ result (slice u32)
+ =
+ core_slice_index_Slice_index_mut_back u32 (core_ops_range_Range usize)
+ (core_slice_index_Range_coresliceindexSliceIndexInst u32) x
+ { start = y; end_ = z } ret
+
+(** [array::array_to_slice_shared_]: forward function *)
+let array_to_slice_shared_ (x : array u32 32) : result (slice u32) =
+ array_to_slice u32 32 x
+
+(** [array::array_to_slice_mut_]: forward function *)
+let array_to_slice_mut_ (x : array u32 32) : result (slice u32) =
+ array_to_slice u32 32 x
+
+(** [array::array_to_slice_mut_]: backward function 0 *)
+let array_to_slice_mut__back
+ (x : array u32 32) (ret : slice u32) : result (array u32 32) =
+ array_from_slice u32 32 x ret
+
+(** [array::array_subslice_shared_]: forward function *)
+let array_subslice_shared_
+ (x : array u32 32) (y : usize) (z : usize) : result (slice u32) =
+ core_array_Array_index u32 (core_ops_range_Range usize) 32
+ (core_slice_index_Slice_coreopsindexIndexInst u32 (core_ops_range_Range
+ usize) (core_slice_index_Range_coresliceindexSliceIndexInst u32)) x
+ { start = y; end_ = z }
+
+(** [array::array_subslice_mut_]: forward function *)
+let array_subslice_mut_
+ (x : array u32 32) (y : usize) (z : usize) : result (slice u32) =
+ core_array_Array_index_mut u32 (core_ops_range_Range usize) 32
+ (core_slice_index_Slice_coreopsindexIndexMutInst u32 (core_ops_range_Range
+ usize) (core_slice_index_Range_coresliceindexSliceIndexInst u32)) x
+ { start = y; end_ = z }
+
+(** [array::array_subslice_mut_]: backward function 0 *)
+let array_subslice_mut__back
+ (x : array u32 32) (y : usize) (z : usize) (ret : slice u32) :
+ result (array u32 32)
+ =
+ core_array_Array_index_mut_back u32 (core_ops_range_Range usize) 32
+ (core_slice_index_Slice_coreopsindexIndexMutInst u32 (core_ops_range_Range
+ usize) (core_slice_index_Range_coresliceindexSliceIndexInst u32)) x
+ { start = y; end_ = z } ret
+
+(** [array::index_slice_0]: forward function *)
+let index_slice_0 (t : Type0) (s : slice t) : result t =
+ slice_index_usize t s 0
+
+(** [array::index_array_0]: forward function *)
+let index_array_0 (t : Type0) (s : array t 32) : result t =
+ array_index_usize t 32 s 0
+
+(** [array::index_index_array]: forward function *)
+let index_index_array
+ (s : array (array u32 32) 32) (i : usize) (j : usize) : result u32 =
+ let* a = array_index_usize (array u32 32) 32 s i in
+ array_index_usize u32 32 a j
+
+(** [array::update_update_array]: forward function *)
+let update_update_array
+ (s : array (array u32 32) 32) (i : usize) (j : usize) : result unit =
+ let* a = array_index_usize (array u32 32) 32 s i in
+ let* a0 = array_update_usize u32 32 a j 0 in
+ let* _ = array_update_usize (array u32 32) 32 s i a0 in
+ Return ()
+
+(** [array::array_local_deep_copy]: forward function *)
+let array_local_deep_copy (x : array u32 32) : result unit =
+ Return ()
+
+(** [array::take_array]: forward function *)
+let take_array (a : array u32 2) : result unit =
+ Return ()
+
+(** [array::take_array_borrow]: forward function *)
+let take_array_borrow (a : array u32 2) : result unit =
+ Return ()
+
+(** [array::take_slice]: forward function *)
+let take_slice (s : slice u32) : result unit =
+ Return ()
+
+(** [array::take_mut_slice]: merged forward/backward function
+ (there is a single backward function, and the forward function returns ()) *)
+let take_mut_slice (s : slice u32) : result (slice u32) =
+ Return s
+
+(** [array::take_all]: forward function *)
+let take_all : result unit =
+ let* _ = take_array (mk_array u32 2 [ 0; 0 ]) in
+ let* _ = take_array_borrow (mk_array u32 2 [ 0; 0 ]) in
+ let* s = array_to_slice u32 2 (mk_array u32 2 [ 0; 0 ]) in
+ let* _ = take_slice s in
+ let* s0 = array_to_slice u32 2 (mk_array u32 2 [ 0; 0 ]) in
+ let* s1 = take_mut_slice s0 in
+ let* _ = array_from_slice u32 2 (mk_array u32 2 [ 0; 0 ]) s1 in
+ Return ()
+
+(** [array::index_array]: forward function *)
+let index_array (x : array u32 2) : result u32 =
+ array_index_usize u32 2 x 0
+
+(** [array::index_array_borrow]: forward function *)
+let index_array_borrow (x : array u32 2) : result u32 =
+ array_index_usize u32 2 x 0
+
+(** [array::index_slice_u32_0]: forward function *)
+let index_slice_u32_0 (x : slice u32) : result u32 =
+ slice_index_usize u32 x 0
+
+(** [array::index_mut_slice_u32_0]: forward function *)
+let index_mut_slice_u32_0 (x : slice u32) : result u32 =
+ slice_index_usize u32 x 0
+
+(** [array::index_mut_slice_u32_0]: backward function 0 *)
+let index_mut_slice_u32_0_back (x : slice u32) : result (slice u32) =
+ let* _ = slice_index_usize u32 x 0 in Return x
+
+(** [array::index_all]: forward function *)
+let index_all : result u32 =
+ let* i = index_array (mk_array u32 2 [ 0; 0 ]) in
+ let* i0 = index_array (mk_array u32 2 [ 0; 0 ]) in
+ let* i1 = u32_add i i0 in
+ let* i2 = index_array_borrow (mk_array u32 2 [ 0; 0 ]) in
+ let* i3 = u32_add i1 i2 in
+ let* s = array_to_slice u32 2 (mk_array u32 2 [ 0; 0 ]) in
+ let* i4 = index_slice_u32_0 s in
+ let* i5 = u32_add i3 i4 in
+ let* s0 = array_to_slice u32 2 (mk_array u32 2 [ 0; 0 ]) in
+ let* i6 = index_mut_slice_u32_0 s0 in
+ let* i7 = u32_add i5 i6 in
+ let* s1 = index_mut_slice_u32_0_back s0 in
+ let* _ = array_from_slice u32 2 (mk_array u32 2 [ 0; 0 ]) s1 in
+ Return i7
+
+(** [array::update_array]: forward function *)
+let update_array (x : array u32 2) : result unit =
+ let* _ = array_update_usize u32 2 x 0 1 in Return ()
+
+(** [array::update_array_mut_borrow]: merged forward/backward function
+ (there is a single backward function, and the forward function returns ()) *)
+let update_array_mut_borrow (x : array u32 2) : result (array u32 2) =
+ array_update_usize u32 2 x 0 1
+
+(** [array::update_mut_slice]: merged forward/backward function
+ (there is a single backward function, and the forward function returns ()) *)
+let update_mut_slice (x : slice u32) : result (slice u32) =
+ slice_update_usize u32 x 0 1
+
+(** [array::update_all]: forward function *)
+let update_all : result unit =
+ let* _ = update_array (mk_array u32 2 [ 0; 0 ]) in
+ let* x = update_array_mut_borrow (mk_array u32 2 [ 0; 0 ]) in
+ let* s = array_to_slice u32 2 x in
+ let* s0 = update_mut_slice s in
+ let* _ = array_from_slice u32 2 x s0 in
+ Return ()
+
+(** [array::range_all]: forward function *)
+let range_all : result unit =
+ let* s =
+ core_array_Array_index_mut u32 (core_ops_range_Range usize) 4
+ (core_slice_index_Slice_coreopsindexIndexMutInst u32
+ (core_ops_range_Range usize)
+ (core_slice_index_Range_coresliceindexSliceIndexInst u32))
+ (mk_array u32 4 [ 0; 0; 0; 0 ]) { start = 1; end_ = 3 } in
+ let* s0 = update_mut_slice s in
+ let* _ =
+ core_array_Array_index_mut_back u32 (core_ops_range_Range usize) 4
+ (core_slice_index_Slice_coreopsindexIndexMutInst u32
+ (core_ops_range_Range usize)
+ (core_slice_index_Range_coresliceindexSliceIndexInst u32))
+ (mk_array u32 4 [ 0; 0; 0; 0 ]) { start = 1; end_ = 3 } s0 in
+ Return ()
+
+(** [array::deref_array_borrow]: forward function *)
+let deref_array_borrow (x : array u32 2) : result u32 =
+ array_index_usize u32 2 x 0
+
+(** [array::deref_array_mut_borrow]: forward function *)
+let deref_array_mut_borrow (x : array u32 2) : result u32 =
+ array_index_usize u32 2 x 0
+
+(** [array::deref_array_mut_borrow]: backward function 0 *)
+let deref_array_mut_borrow_back (x : array u32 2) : result (array u32 2) =
+ let* _ = array_index_usize u32 2 x 0 in Return x
+
+(** [array::take_array_t]: forward function *)
+let take_array_t (a : array aB_t 2) : result unit =
+ Return ()
+
+(** [array::non_copyable_array]: forward function *)
+let non_copyable_array : result unit =
+ let* _ = take_array_t (mk_array aB_t 2 [ AB_A; AB_B ]) in Return ()
+
+(** [array::sum]: decreases clause *)
+unfold
+let sum_loop_decreases (s : slice u32) (sum0 : u32) (i : usize) : nat =
+ admit ()
+
+(** [array::sum]: loop 0: forward function *)
+let rec sum_loop
+ (s : slice u32) (sum0 : u32) (i : usize) :
+ Tot (result u32) (decreases (sum_loop_decreases s sum0 i))
+ =
+ let i0 = slice_len u32 s in
+ if i < i0
+ then
+ let* i1 = slice_index_usize u32 s i in
+ let* sum1 = u32_add sum0 i1 in
+ let* i2 = usize_add i 1 in
+ sum_loop s sum1 i2
+ else Return sum0
+
+(** [array::sum]: forward function *)
+let sum (s : slice u32) : result u32 =
+ sum_loop s 0 0
+
+(** [array::sum2]: decreases clause *)
+unfold
+let sum2_loop_decreases (s : slice u32) (s2 : slice u32) (sum0 : u32)
+ (i : usize) : nat =
+ admit ()
+
+(** [array::sum2]: loop 0: forward function *)
+let rec sum2_loop
+ (s : slice u32) (s2 : slice u32) (sum0 : u32) (i : usize) :
+ Tot (result u32) (decreases (sum2_loop_decreases s s2 sum0 i))
+ =
+ let i0 = slice_len u32 s in
+ if i < i0
+ then
+ let* i1 = slice_index_usize u32 s i in
+ let* i2 = slice_index_usize u32 s2 i in
+ let* i3 = u32_add i1 i2 in
+ let* sum1 = u32_add sum0 i3 in
+ let* i4 = usize_add i 1 in
+ sum2_loop s s2 sum1 i4
+ else Return sum0
+
+(** [array::sum2]: forward function *)
+let sum2 (s : slice u32) (s2 : slice u32) : result u32 =
+ let i = slice_len u32 s in
+ let i0 = slice_len u32 s2 in
+ if not (i = i0) then Fail Failure else sum2_loop s s2 0 0
+
+(** [array::f0]: forward function *)
+let f0 : result unit =
+ let* s = array_to_slice u32 2 (mk_array u32 2 [ 1; 2 ]) in
+ let* s0 = slice_update_usize u32 s 0 1 in
+ let* _ = array_from_slice u32 2 (mk_array u32 2 [ 1; 2 ]) s0 in
+ Return ()
+
+(** [array::f1]: forward function *)
+let f1 : result unit =
+ let* _ = array_update_usize u32 2 (mk_array u32 2 [ 1; 2 ]) 0 1 in Return ()
+
+(** [array::f2]: forward function *)
+let f2 (i : u32) : result unit =
+ Return ()
+
+(** [array::f4]: forward function *)
+let f4 (x : array u32 32) (y : usize) (z : usize) : result (slice u32) =
+ core_array_Array_index u32 (core_ops_range_Range usize) 32
+ (core_slice_index_Slice_coreopsindexIndexInst u32 (core_ops_range_Range
+ usize) (core_slice_index_Range_coresliceindexSliceIndexInst u32)) x
+ { start = y; end_ = z }
+
+(** [array::f3]: forward function *)
+let f3 : result u32 =
+ let* i = array_index_usize u32 2 (mk_array u32 2 [ 1; 2 ]) 0 in
+ let* _ = f2 i in
+ let b = array_repeat u32 32 0 in
+ let* s = array_to_slice u32 2 (mk_array u32 2 [ 1; 2 ]) in
+ let* s0 = f4 b 16 18 in
+ sum2 s s0
+
+(** [array::SZ] *)
+let sz_body : result usize = Return 32
+let sz_c : usize = eval_global sz_body
+
+(** [array::f5]: forward function *)
+let f5 (x : array u32 32) : result u32 =
+ array_index_usize u32 32 x 0
+
+(** [array::ite]: forward function *)
+let ite : result unit =
+ let* s = array_to_slice u32 2 (mk_array u32 2 [ 0; 0 ]) in
+ let* s0 = array_to_slice u32 2 (mk_array u32 2 [ 0; 0 ]) in
+ let* s1 = index_mut_slice_u32_0_back s0 in
+ let* _ = array_from_slice u32 2 (mk_array u32 2 [ 0; 0 ]) s1 in
+ let* s2 = index_mut_slice_u32_0_back s in
+ let* _ = array_from_slice u32 2 (mk_array u32 2 [ 0; 0 ]) s2 in
+ Return ()
+
diff --git a/tests/fstar/traits/Primitives.fst b/tests/fstar/traits/Primitives.fst
new file mode 100644
index 00000000..71d75c11
--- /dev/null
+++ b/tests/fstar/traits/Primitives.fst
@@ -0,0 +1,713 @@
+/// This file lists primitive and assumed functions and types
+module Primitives
+open FStar.Mul
+open FStar.List.Tot
+
+#set-options "--z3rlimit 15 --fuel 0 --ifuel 1"
+
+(*** Utilities *)
+val list_update (#a : Type0) (ls : list a) (i : nat{i < length ls}) (x : a) :
+ ls':list a{
+ length ls' = length ls /\
+ index ls' i == x
+ }
+#push-options "--fuel 1"
+let rec list_update #a ls i x =
+ match ls with
+ | x' :: ls -> if i = 0 then x :: ls else x' :: list_update ls (i-1) x
+#pop-options
+
+(*** Result *)
+type error : Type0 =
+| Failure
+| OutOfFuel
+
+type result (a : Type0) : Type0 =
+| Return : v:a -> result a
+| Fail : e:error -> result a
+
+// Monadic return operator
+unfold let return (#a : Type0) (x : a) : result a = Return x
+
+// Monadic bind operator.
+// Allows to use the notation:
+// ```
+// let* x = y in
+// ...
+// ```
+unfold let (let*) (#a #b : Type0) (m: result a)
+ (f: (x:a) -> Pure (result b) (requires (m == Return x)) (ensures fun _ -> True)) :
+ result b =
+ match m with
+ | Return x -> f x
+ | Fail e -> Fail e
+
+// Monadic assert(...)
+let massert (b:bool) : result unit = if b then Return () else Fail Failure
+
+// Normalize and unwrap a successful result (used for globals).
+let eval_global (#a : Type0) (x : result a{Return? (normalize_term x)}) : a = Return?.v x
+
+(*** Misc *)
+type char = FStar.Char.char
+type string = string
+
+let is_zero (n: nat) : bool = n = 0
+let decrease (n: nat{n > 0}) : nat = n - 1
+
+let core_mem_replace (a : Type0) (x : a) (y : a) : a = x
+let core_mem_replace_back (a : Type0) (x : a) (y : a) : a = y
+
+// We don't really use raw pointers for now
+type mut_raw_ptr (t : Type0) = { v : t }
+type const_raw_ptr (t : Type0) = { v : t }
+
+(*** Scalars *)
+/// Rem.: most of the following code was partially generated
+
+let isize_min : int = -9223372036854775808 // TODO: should be opaque
+let isize_max : int = 9223372036854775807 // TODO: should be opaque
+let i8_min : int = -128
+let i8_max : int = 127
+let i16_min : int = -32768
+let i16_max : int = 32767
+let i32_min : int = -2147483648
+let i32_max : int = 2147483647
+let i64_min : int = -9223372036854775808
+let i64_max : int = 9223372036854775807
+let i128_min : int = -170141183460469231731687303715884105728
+let i128_max : int = 170141183460469231731687303715884105727
+let usize_min : int = 0
+let usize_max : int = 4294967295 // TODO: should be opaque
+let u8_min : int = 0
+let u8_max : int = 255
+let u16_min : int = 0
+let u16_max : int = 65535
+let u32_min : int = 0
+let u32_max : int = 4294967295
+let u64_min : int = 0
+let u64_max : int = 18446744073709551615
+let u128_min : int = 0
+let u128_max : int = 340282366920938463463374607431768211455
+
+type scalar_ty =
+| Isize
+| I8
+| I16
+| I32
+| I64
+| I128
+| Usize
+| U8
+| U16
+| U32
+| U64
+| U128
+
+let is_unsigned = function
+ | Isize | I8 | I16 | I32 | I64 | I128 -> false
+ | Usize | U8 | U16 | U32 | U64 | U128 -> true
+
+
+let scalar_min (ty : scalar_ty) : int =
+ match ty with
+ | Isize -> isize_min
+ | I8 -> i8_min
+ | I16 -> i16_min
+ | I32 -> i32_min
+ | I64 -> i64_min
+ | I128 -> i128_min
+ | Usize -> usize_min
+ | U8 -> u8_min
+ | U16 -> u16_min
+ | U32 -> u32_min
+ | U64 -> u64_min
+ | U128 -> u128_min
+
+let scalar_max (ty : scalar_ty) : int =
+ match ty with
+ | Isize -> isize_max
+ | I8 -> i8_max
+ | I16 -> i16_max
+ | I32 -> i32_max
+ | I64 -> i64_max
+ | I128 -> i128_max
+ | Usize -> usize_max
+ | U8 -> u8_max
+ | U16 -> u16_max
+ | U32 -> u32_max
+ | U64 -> u64_max
+ | U128 -> u128_max
+
+type scalar (ty : scalar_ty) : eqtype = x:int{scalar_min ty <= x && x <= scalar_max ty}
+
+let mk_scalar (ty : scalar_ty) (x : int) : result (scalar ty) =
+ if scalar_min ty <= x && scalar_max ty >= x then Return x else Fail Failure
+
+let scalar_neg (#ty : scalar_ty) (x : scalar ty) : result (scalar ty) = mk_scalar ty (-x)
+
+let scalar_div (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) =
+ if y <> 0 then mk_scalar ty (x / y) else Fail Failure
+
+/// The remainder operation
+let int_rem (x : int) (y : int{y <> 0}) : int =
+ if x >= 0 then (x % y) else -(x % y)
+
+(* Checking consistency with Rust *)
+let _ = assert_norm(int_rem 1 2 = 1)
+let _ = assert_norm(int_rem (-1) 2 = -1)
+let _ = assert_norm(int_rem 1 (-2) = 1)
+let _ = assert_norm(int_rem (-1) (-2) = -1)
+
+let scalar_rem (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) =
+ if y <> 0 then mk_scalar ty (int_rem x y) else Fail Failure
+
+let scalar_add (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) =
+ mk_scalar ty (x + y)
+
+let scalar_sub (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) =
+ mk_scalar ty (x - y)
+
+let scalar_mul (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) =
+ mk_scalar ty (x * y)
+
+let scalar_lxor (#ty : scalar_ty { is_unsigned ty && ty <> Usize })
+ (x : scalar ty) (y : scalar ty) : scalar ty =
+ match ty with
+ | U8 -> FStar.UInt.logxor #8 x y
+ | U16 -> FStar.UInt.logxor #16 x y
+ | U32 -> FStar.UInt.logxor #32 x y
+ | U64 -> FStar.UInt.logxor #64 x y
+ | U128 -> FStar.UInt.logxor #128 x y
+
+(** Cast an integer from a [src_ty] to a [tgt_ty] *)
+// TODO: check the semantics of casts in Rust
+let scalar_cast (src_ty : scalar_ty) (tgt_ty : scalar_ty) (x : scalar src_ty) : result (scalar tgt_ty) =
+ mk_scalar tgt_ty x
+
+/// The scalar types
+type isize : eqtype = scalar Isize
+type i8 : eqtype = scalar I8
+type i16 : eqtype = scalar I16
+type i32 : eqtype = scalar I32
+type i64 : eqtype = scalar I64
+type i128 : eqtype = scalar I128
+type usize : eqtype = scalar Usize
+type u8 : eqtype = scalar U8
+type u16 : eqtype = scalar U16
+type u32 : eqtype = scalar U32
+type u64 : eqtype = scalar U64
+type u128 : eqtype = scalar U128
+
+
+let core_isize_min : isize = isize_min
+let core_isize_max : isize = isize_max
+let core_i8_min : i8 = i8_min
+let core_i8_max : i8 = i8_max
+let core_i16_min : i16 = i16_min
+let core_i16_max : i16 = i16_max
+let core_i32_min : i32 = i32_min
+let core_i32_max : i32 = i32_max
+let core_i64_min : i64 = i64_min
+let core_i64_max : i64 = i64_max
+let core_i128_min : i128 = i128_min
+let core_i128_max : i128 = i128_max
+
+let core_usize_min : usize = usize_min
+let core_usize_max : usize = usize_max
+let core_u8_min : u8 = u8_min
+let core_u8_max : u8 = u8_max
+let core_u16_min : u16 = u16_min
+let core_u16_max : u16 = u16_max
+let core_u32_min : u32 = u32_min
+let core_u32_max : u32 = u32_max
+let core_u64_min : u64 = u64_min
+let core_u64_max : u64 = u64_max
+let core_u128_min : u128 = u128_min
+let core_u128_max : u128 = u128_max
+
+/// Negation
+let isize_neg = scalar_neg #Isize
+let i8_neg = scalar_neg #I8
+let i16_neg = scalar_neg #I16
+let i32_neg = scalar_neg #I32
+let i64_neg = scalar_neg #I64
+let i128_neg = scalar_neg #I128
+
+/// Division
+let isize_div = scalar_div #Isize
+let i8_div = scalar_div #I8
+let i16_div = scalar_div #I16
+let i32_div = scalar_div #I32
+let i64_div = scalar_div #I64
+let i128_div = scalar_div #I128
+let usize_div = scalar_div #Usize
+let u8_div = scalar_div #U8
+let u16_div = scalar_div #U16
+let u32_div = scalar_div #U32
+let u64_div = scalar_div #U64
+let u128_div = scalar_div #U128
+
+/// Remainder
+let isize_rem = scalar_rem #Isize
+let i8_rem = scalar_rem #I8
+let i16_rem = scalar_rem #I16
+let i32_rem = scalar_rem #I32
+let i64_rem = scalar_rem #I64
+let i128_rem = scalar_rem #I128
+let usize_rem = scalar_rem #Usize
+let u8_rem = scalar_rem #U8
+let u16_rem = scalar_rem #U16
+let u32_rem = scalar_rem #U32
+let u64_rem = scalar_rem #U64
+let u128_rem = scalar_rem #U128
+
+/// Addition
+let isize_add = scalar_add #Isize
+let i8_add = scalar_add #I8
+let i16_add = scalar_add #I16
+let i32_add = scalar_add #I32
+let i64_add = scalar_add #I64
+let i128_add = scalar_add #I128
+let usize_add = scalar_add #Usize
+let u8_add = scalar_add #U8
+let u16_add = scalar_add #U16
+let u32_add = scalar_add #U32
+let u64_add = scalar_add #U64
+let u128_add = scalar_add #U128
+
+/// Subtraction
+let isize_sub = scalar_sub #Isize
+let i8_sub = scalar_sub #I8
+let i16_sub = scalar_sub #I16
+let i32_sub = scalar_sub #I32
+let i64_sub = scalar_sub #I64
+let i128_sub = scalar_sub #I128
+let usize_sub = scalar_sub #Usize
+let u8_sub = scalar_sub #U8
+let u16_sub = scalar_sub #U16
+let u32_sub = scalar_sub #U32
+let u64_sub = scalar_sub #U64
+let u128_sub = scalar_sub #U128
+
+/// Multiplication
+let isize_mul = scalar_mul #Isize
+let i8_mul = scalar_mul #I8
+let i16_mul = scalar_mul #I16
+let i32_mul = scalar_mul #I32
+let i64_mul = scalar_mul #I64
+let i128_mul = scalar_mul #I128
+let usize_mul = scalar_mul #Usize
+let u8_mul = scalar_mul #U8
+let u16_mul = scalar_mul #U16
+let u32_mul = scalar_mul #U32
+let u64_mul = scalar_mul #U64
+let u128_mul = scalar_mul #U128
+
+/// Logical operators, defined for unsigned types only, so far
+let u8_xor = scalar_lxor #U8
+let u16_xor = scalar_lxor #U16
+let u32_xor = scalar_lxor #U32
+let u64_xor = scalar_lxor #U64
+let u128_xor = scalar_lxor #U128
+
+(*** core::ops *)
+
+// Trait declaration: [core::ops::index::Index]
+noeq type core_ops_index_Index (self idx : Type0) = {
+ output : Type0;
+ index : self → idx → result output
+}
+
+// Trait declaration: [core::ops::index::IndexMut]
+noeq type core_ops_index_IndexMut (self idx : Type0) = {
+ indexInst : core_ops_index_Index self idx;
+ index_mut : self → idx → result indexInst.output;
+ index_mut_back : self → idx → indexInst.output → result self;
+}
+
+// Trait declaration [core::ops::deref::Deref]
+noeq type core_ops_deref_Deref (self : Type0) = {
+ target : Type0;
+ deref : self → result target;
+}
+
+// Trait declaration [core::ops::deref::DerefMut]
+noeq type core_ops_deref_DerefMut (self : Type0) = {
+ derefInst : core_ops_deref_Deref self;
+ deref_mut : self → result derefInst.target;
+ deref_mut_back : self → derefInst.target → result self;
+}
+
+type core_ops_range_Range (a : Type0) = {
+ start : a;
+ end_ : a;
+}
+
+(*** [alloc] *)
+
+let alloc_boxed_Box_deref (t : Type0) (x : t) : result t = Return x
+let alloc_boxed_Box_deref_mut (t : Type0) (x : t) : result t = Return x
+let alloc_boxed_Box_deref_mut_back (t : Type) (_ : t) (x : t) : result t = Return x
+
+// Trait instance
+let alloc_boxed_Box_coreOpsDerefInst (self : Type0) : core_ops_deref_Deref self = {
+ target = self;
+ deref = alloc_boxed_Box_deref self;
+}
+
+// Trait instance
+let alloc_boxed_Box_coreOpsDerefMutInst (self : Type0) : core_ops_deref_DerefMut self = {
+ derefInst = alloc_boxed_Box_coreOpsDerefInst self;
+ deref_mut = alloc_boxed_Box_deref_mut self;
+ deref_mut_back = alloc_boxed_Box_deref_mut_back self;
+}
+
+(*** Array *)
+type array (a : Type0) (n : usize) = s:list a{length s = n}
+
+// We tried putting the normalize_term condition as a refinement on the list
+// but it didn't work. It works with the requires clause.
+let mk_array (a : Type0) (n : usize)
+ (l : list a) :
+ Pure (array a n)
+ (requires (normalize_term(FStar.List.Tot.length l) = n))
+ (ensures (fun _ -> True)) =
+ normalize_term_spec (FStar.List.Tot.length l);
+ l
+
+let array_index_usize (a : Type0) (n : usize) (x : array a n) (i : usize) : result a =
+ if i < length x then Return (index x i)
+ else Fail Failure
+
+let array_update_usize (a : Type0) (n : usize) (x : array a n) (i : usize) (nx : a) : result (array a n) =
+ if i < length x then Return (list_update x i nx)
+ else Fail Failure
+
+(*** Slice *)
+type slice (a : Type0) = s:list a{length s <= usize_max}
+
+let slice_len (a : Type0) (s : slice a) : usize = length s
+
+let slice_index_usize (a : Type0) (x : slice a) (i : usize) : result a =
+ if i < length x then Return (index x i)
+ else Fail Failure
+
+let slice_update_usize (a : Type0) (x : slice a) (i : usize) (nx : a) : result (slice a) =
+ if i < length x then Return (list_update x i nx)
+ else Fail Failure
+
+(*** Subslices *)
+
+let array_to_slice (a : Type0) (n : usize) (x : array a n) : result (slice a) = Return x
+let array_from_slice (a : Type0) (n : usize) (x : array a n) (s : slice a) : result (array a n) =
+ if length s = n then Return s
+ else Fail Failure
+
+// TODO: finish the definitions below (there lacks [List.drop] and [List.take] in the standard library *)
+let array_subslice (a : Type0) (n : usize) (x : array a n) (r : core_ops_range_Range usize) : result (slice a) =
+ admit()
+
+let array_update_subslice (a : Type0) (n : usize) (x : array a n) (r : core_ops_range_Range usize) (ns : slice a) : result (array a n) =
+ admit()
+
+let array_repeat (a : Type0) (n : usize) (x : a) : array a n =
+ admit()
+
+let slice_subslice (a : Type0) (x : slice a) (r : core_ops_range_Range usize) : result (slice a) =
+ admit()
+
+let slice_update_subslice (a : Type0) (x : slice a) (r : core_ops_range_Range usize) (ns : slice a) : result (slice a) =
+ admit()
+
+(*** Vector *)
+type alloc_vec_Vec (a : Type0) = v:list a{length v <= usize_max}
+
+let alloc_vec_Vec_new (a : Type0) : alloc_vec_Vec a = assert_norm(length #a [] == 0); []
+let alloc_vec_Vec_len (a : Type0) (v : alloc_vec_Vec a) : usize = length v
+
+// Helper
+let alloc_vec_Vec_index_usize (#a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result a =
+ if i < length v then Return (index v i) else Fail Failure
+// Helper
+let alloc_vec_Vec_update_usize (#a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result (alloc_vec_Vec a) =
+ if i < length v then Return (list_update v i x) else Fail Failure
+
+// The **forward** function shouldn't be used
+let alloc_vec_Vec_push_fwd (a : Type0) (v : alloc_vec_Vec a) (x : a) : unit = ()
+let alloc_vec_Vec_push (a : Type0) (v : alloc_vec_Vec a) (x : a) :
+ Pure (result (alloc_vec_Vec a))
+ (requires True)
+ (ensures (fun res ->
+ match res with
+ | Fail e -> e == Failure
+ | Return v' -> length v' = length v + 1)) =
+ if length v < usize_max then begin
+ (**) assert_norm(length [x] == 1);
+ (**) append_length v [x];
+ (**) assert(length (append v [x]) = length v + 1);
+ Return (append v [x])
+ end
+ else Fail Failure
+
+// The **forward** function shouldn't be used
+let alloc_vec_Vec_insert_fwd (a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result unit =
+ if i < length v then Return () else Fail Failure
+let alloc_vec_Vec_insert (a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result (alloc_vec_Vec a) =
+ if i < length v then Return (list_update v i x) else Fail Failure
+
+// Trait declaration: [core::slice::index::private_slice_index::Sealed]
+type core_slice_index_private_slice_index_Sealed (self : Type0) = unit
+
+// Trait declaration: [core::slice::index::SliceIndex]
+noeq type core_slice_index_SliceIndex (self t : Type0) = {
+ sealedInst : core_slice_index_private_slice_index_Sealed self;
+ output : Type0;
+ get : self → t → result (option output);
+ get_mut : self → t → result (option output);
+ get_mut_back : self → t → option output → result t;
+ get_unchecked : self → const_raw_ptr t → result (const_raw_ptr output);
+ get_unchecked_mut : self → mut_raw_ptr t → result (mut_raw_ptr output);
+ index : self → t → result output;
+ index_mut : self → t → result output;
+ index_mut_back : self → t → output → result t;
+}
+
+// [core::slice::index::[T]::index]: forward function
+let core_slice_index_Slice_index
+ (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t))
+ (s : slice t) (i : idx) : result inst.output =
+ let* x = inst.get i s in
+ match x with
+ | None -> Fail Failure
+ | Some x -> Return x
+
+// [core::slice::index::Range:::get]: forward function
+let core_slice_index_Range_get (t : Type0) (i : core_ops_range_Range usize) (s : slice t) :
+ result (option (slice t)) =
+ admit () // TODO
+
+// [core::slice::index::Range::get_mut]: forward function
+let core_slice_index_Range_get_mut
+ (t : Type0) : core_ops_range_Range usize → slice t → result (option (slice t)) =
+ admit () // TODO
+
+// [core::slice::index::Range::get_mut]: backward function 0
+let core_slice_index_Range_get_mut_back
+ (t : Type0) :
+ core_ops_range_Range usize → slice t → option (slice t) → result (slice t) =
+ admit () // TODO
+
+// [core::slice::index::Range::get_unchecked]: forward function
+let core_slice_index_Range_get_unchecked
+ (t : Type0) :
+ core_ops_range_Range usize → const_raw_ptr (slice t) → result (const_raw_ptr (slice t)) =
+ // Don't know what the model should be - for now we always fail to make
+ // sure code which uses it fails
+ fun _ _ -> Fail Failure
+
+// [core::slice::index::Range::get_unchecked_mut]: forward function
+let core_slice_index_Range_get_unchecked_mut
+ (t : Type0) :
+ core_ops_range_Range usize → mut_raw_ptr (slice t) → result (mut_raw_ptr (slice t)) =
+ // Don't know what the model should be - for now we always fail to make
+ // sure code which uses it fails
+ fun _ _ -> Fail Failure
+
+// [core::slice::index::Range::index]: forward function
+let core_slice_index_Range_index
+ (t : Type0) : core_ops_range_Range usize → slice t → result (slice t) =
+ admit () // TODO
+
+// [core::slice::index::Range::index_mut]: forward function
+let core_slice_index_Range_index_mut
+ (t : Type0) : core_ops_range_Range usize → slice t → result (slice t) =
+ admit () // TODO
+
+// [core::slice::index::Range::index_mut]: backward function 0
+let core_slice_index_Range_index_mut_back
+ (t : Type0) : core_ops_range_Range usize → slice t → slice t → result (slice t) =
+ admit () // TODO
+
+// [core::slice::index::[T]::index_mut]: forward function
+let core_slice_index_Slice_index_mut
+ (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) :
+ slice t → idx → result inst.output =
+ admit () //
+
+// [core::slice::index::[T]::index_mut]: backward function 0
+let core_slice_index_Slice_index_mut_back
+ (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) :
+ slice t → idx → inst.output → result (slice t) =
+ admit () // TODO
+
+// [core::array::[T; N]::index]: forward function
+let core_array_Array_index
+ (t idx : Type0) (n : usize) (inst : core_ops_index_Index (slice t) idx)
+ (a : array t n) (i : idx) : result inst.output =
+ admit () // TODO
+
+// [core::array::[T; N]::index_mut]: forward function
+let core_array_Array_index_mut
+ (t idx : Type0) (n : usize) (inst : core_ops_index_IndexMut (slice t) idx)
+ (a : array t n) (i : idx) : result inst.indexInst.output =
+ admit () // TODO
+
+// [core::array::[T; N]::index_mut]: backward function 0
+let core_array_Array_index_mut_back
+ (t idx : Type0) (n : usize) (inst : core_ops_index_IndexMut (slice t) idx)
+ (a : array t n) (i : idx) (x : inst.indexInst.output) : result (array t n) =
+ admit () // TODO
+
+// Trait implementation: [core::slice::index::[T]]
+let core_slice_index_Slice_coreopsindexIndexInst (t idx : Type0)
+ (inst : core_slice_index_SliceIndex idx (slice t)) :
+ core_ops_index_Index (slice t) idx = {
+ output = inst.output;
+ index = core_slice_index_Slice_index t idx inst;
+}
+
+// Trait implementation: [core::slice::index::private_slice_index::Range]
+let core_slice_index_private_slice_index_Range_coresliceindexprivate_slice_indexSealedInst
+ : core_slice_index_private_slice_index_Sealed (core_ops_range_Range usize) = ()
+
+// Trait implementation: [core::slice::index::Range]
+let core_slice_index_Range_coresliceindexSliceIndexInst (t : Type0) :
+ core_slice_index_SliceIndex (core_ops_range_Range usize) (slice t) = {
+ sealedInst = core_slice_index_private_slice_index_Range_coresliceindexprivate_slice_indexSealedInst;
+ output = slice t;
+ get = core_slice_index_Range_get t;
+ get_mut = core_slice_index_Range_get_mut t;
+ get_mut_back = core_slice_index_Range_get_mut_back t;
+ get_unchecked = core_slice_index_Range_get_unchecked t;
+ get_unchecked_mut = core_slice_index_Range_get_unchecked_mut t;
+ index = core_slice_index_Range_index t;
+ index_mut = core_slice_index_Range_index_mut t;
+ index_mut_back = core_slice_index_Range_index_mut_back t;
+}
+
+// Trait implementation: [core::slice::index::[T]]
+let core_slice_index_Slice_coreopsindexIndexMutInst (t idx : Type0)
+ (inst : core_slice_index_SliceIndex idx (slice t)) :
+ core_ops_index_IndexMut (slice t) idx = {
+ indexInst = core_slice_index_Slice_coreopsindexIndexInst t idx inst;
+ index_mut = core_slice_index_Slice_index_mut t idx inst;
+ index_mut_back = core_slice_index_Slice_index_mut_back t idx inst;
+}
+
+// Trait implementation: [core::array::[T; N]]
+let core_array_Array_coreopsindexIndexInst (t idx : Type0) (n : usize)
+ (inst : core_ops_index_Index (slice t) idx) :
+ core_ops_index_Index (array t n) idx = {
+ output = inst.output;
+ index = core_array_Array_index t idx n inst;
+}
+
+// Trait implementation: [core::array::[T; N]]
+let core_array_Array_coreopsindexIndexMutInst (t idx : Type0) (n : usize)
+ (inst : core_ops_index_IndexMut (slice t) idx) :
+ core_ops_index_IndexMut (array t n) idx = {
+ indexInst = core_array_Array_coreopsindexIndexInst t idx n inst.indexInst;
+ index_mut = core_array_Array_index_mut t idx n inst;
+ index_mut_back = core_array_Array_index_mut_back t idx n inst;
+}
+
+// [core::slice::index::usize::get]: forward function
+let core_slice_index_usize_get
+ (t : Type0) : usize → slice t → result (option t) =
+ admit () // TODO
+
+// [core::slice::index::usize::get_mut]: forward function
+let core_slice_index_usize_get_mut
+ (t : Type0) : usize → slice t → result (option t) =
+ admit () // TODO
+
+// [core::slice::index::usize::get_mut]: backward function 0
+let core_slice_index_usize_get_mut_back
+ (t : Type0) : usize → slice t → option t → result (slice t) =
+ admit () // TODO
+
+// [core::slice::index::usize::get_unchecked]: forward function
+let core_slice_index_usize_get_unchecked
+ (t : Type0) : usize → const_raw_ptr (slice t) → result (const_raw_ptr t) =
+ admit () // TODO
+
+// [core::slice::index::usize::get_unchecked_mut]: forward function
+let core_slice_index_usize_get_unchecked_mut
+ (t : Type0) : usize → mut_raw_ptr (slice t) → result (mut_raw_ptr t) =
+ admit () // TODO
+
+// [core::slice::index::usize::index]: forward function
+let core_slice_index_usize_index (t : Type0) : usize → slice t → result t =
+ admit () // TODO
+
+// [core::slice::index::usize::index_mut]: forward function
+let core_slice_index_usize_index_mut (t : Type0) : usize → slice t → result t =
+ admit () // TODO
+
+// [core::slice::index::usize::index_mut]: backward function 0
+let core_slice_index_usize_index_mut_back
+ (t : Type0) : usize → slice t → t → result (slice t) =
+ admit () // TODO
+
+// Trait implementation: [core::slice::index::private_slice_index::usize]
+let core_slice_index_private_slice_index_usize_coresliceindexprivate_slice_indexSealedInst
+ : core_slice_index_private_slice_index_Sealed usize = ()
+
+// Trait implementation: [core::slice::index::usize]
+let core_slice_index_usize_coresliceindexSliceIndexInst (t : Type0) :
+ core_slice_index_SliceIndex usize (slice t) = {
+ sealedInst = core_slice_index_private_slice_index_usize_coresliceindexprivate_slice_indexSealedInst;
+ output = t;
+ get = core_slice_index_usize_get t;
+ get_mut = core_slice_index_usize_get_mut t;
+ get_mut_back = core_slice_index_usize_get_mut_back t;
+ get_unchecked = core_slice_index_usize_get_unchecked t;
+ get_unchecked_mut = core_slice_index_usize_get_unchecked_mut t;
+ index = core_slice_index_usize_index t;
+ index_mut = core_slice_index_usize_index_mut t;
+ index_mut_back = core_slice_index_usize_index_mut_back t;
+}
+
+// [alloc::vec::Vec::index]: forward function
+let alloc_vec_Vec_index (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t))
+ (self : alloc_vec_Vec t) (i : idx) : result inst.output =
+ admit () // TODO
+
+// [alloc::vec::Vec::index_mut]: forward function
+let alloc_vec_Vec_index_mut (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t))
+ (self : alloc_vec_Vec t) (i : idx) : result inst.output =
+ admit () // TODO
+
+// [alloc::vec::Vec::index_mut]: backward function 0
+let alloc_vec_Vec_index_mut_back
+ (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t))
+ (self : alloc_vec_Vec t) (i : idx) (x : inst.output) : result (alloc_vec_Vec t) =
+ admit () // TODO
+
+// Trait implementation: [alloc::vec::Vec]
+let alloc_vec_Vec_coreopsindexIndexInst (t idx : Type0)
+ (inst : core_slice_index_SliceIndex idx (slice t)) :
+ core_ops_index_Index (alloc_vec_Vec t) idx = {
+ output = inst.output;
+ index = alloc_vec_Vec_index t idx inst;
+}
+
+// Trait implementation: [alloc::vec::Vec]
+let alloc_vec_Vec_coreopsindexIndexMutInst (t idx : Type0)
+ (inst : core_slice_index_SliceIndex idx (slice t)) :
+ core_ops_index_IndexMut (alloc_vec_Vec t) idx = {
+ indexInst = alloc_vec_Vec_coreopsindexIndexInst t idx inst;
+ index_mut = alloc_vec_Vec_index_mut t idx inst;
+ index_mut_back = alloc_vec_Vec_index_mut_back t idx inst;
+}
+
+(*** Theorems *)
+
+let alloc_vec_Vec_index_mut_back_eq (#a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) :
+ Lemma (
+ alloc_vec_Vec_index_mut_back a usize (core_slice_index_usize_coresliceindexSliceIndexInst a) v i x ==
+ alloc_vec_Vec_update_usize v i x)
+ [SMTPat (alloc_vec_Vec_index_mut_back a usize (core_slice_index_usize_coresliceindexSliceIndexInst a) v i x)]
+ =
+ admit()
diff --git a/tests/fstar/traits/Traits.fst b/tests/fstar/traits/Traits.fst
new file mode 100644
index 00000000..42b43cf2
--- /dev/null
+++ b/tests/fstar/traits/Traits.fst
@@ -0,0 +1,401 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [traits] *)
+module Traits
+open Primitives
+
+#set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
+
+(** Trait declaration: [traits::BoolTrait] *)
+noeq type boolTrait_t (self : Type0) = { get_bool : self -> result bool; }
+
+(** [traits::Bool::{0}::get_bool]: forward function *)
+let bool_get_bool (self : bool) : result bool =
+ Return self
+
+(** Trait implementation: [traits::Bool::{0}] *)
+let bool_BoolTraitInst : boolTrait_t bool = { get_bool = bool_get_bool; }
+
+(** [traits::BoolTrait::ret_true]: forward function *)
+let boolTrait_ret_true
+ (#self : Type0) (self_clause : boolTrait_t self) (self0 : self) :
+ result bool
+ =
+ Return true
+
+(** [traits::test_bool_trait_bool]: forward function *)
+let test_bool_trait_bool (x : bool) : result bool =
+ let* b = bool_get_bool x in
+ if b then boolTrait_ret_true bool_BoolTraitInst x else Return false
+
+(** [traits::Option::{1}::get_bool]: forward function *)
+let option_get_bool (t : Type0) (self : option t) : result bool =
+ begin match self with | None -> Return false | Some x -> Return true end
+
+(** Trait implementation: [traits::Option::{1}] *)
+let option_BoolTraitInst (t : Type0) : boolTrait_t (option t) = {
+ get_bool = option_get_bool t;
+}
+
+(** [traits::test_bool_trait_option]: forward function *)
+let test_bool_trait_option (t : Type0) (x : option t) : result bool =
+ let* b = option_get_bool t x in
+ if b then boolTrait_ret_true (option_BoolTraitInst t) x else Return false
+
+(** [traits::test_bool_trait]: forward function *)
+let test_bool_trait (t : Type0) (inst : boolTrait_t t) (x : t) : result bool =
+ inst.get_bool x
+
+(** Trait declaration: [traits::ToU64] *)
+noeq type toU64_t (self : Type0) = { to_u64 : self -> result u64; }
+
+(** [traits::u64::{2}::to_u64]: forward function *)
+let u64_to_u64 (self : u64) : result u64 =
+ Return self
+
+(** Trait implementation: [traits::u64::{2}] *)
+let u64_ToU64Inst : toU64_t u64 = { to_u64 = u64_to_u64; }
+
+(** [traits::Tuple2::{3}::to_u64]: forward function *)
+let tuple2_to_u64
+ (a : Type0) (inst : toU64_t a) (self : (a & a)) : result u64 =
+ let (x, x0) = self in
+ let* i = inst.to_u64 x in
+ let* i0 = inst.to_u64 x0 in
+ u64_add i i0
+
+(** Trait implementation: [traits::Tuple2::{3}] *)
+let tuple2_ToU64Inst (a : Type0) (inst : toU64_t a) : toU64_t (a & a) = {
+ to_u64 = tuple2_to_u64 a inst;
+}
+
+(** [traits::f]: forward function *)
+let f (t : Type0) (inst : toU64_t t) (x : (t & t)) : result u64 =
+ tuple2_to_u64 t inst x
+
+(** [traits::g]: forward function *)
+let g (t : Type0) (inst : toU64_t (t & t)) (x : (t & t)) : result u64 =
+ inst.to_u64 x
+
+(** [traits::h0]: forward function *)
+let h0 (x : u64) : result u64 =
+ u64_to_u64 x
+
+(** [traits::Wrapper] *)
+type wrapper_t (t : Type0) = { x : t; }
+
+(** [traits::Wrapper::{4}::to_u64]: forward function *)
+let wrapper_to_u64
+ (t : Type0) (inst : toU64_t t) (self : wrapper_t t) : result u64 =
+ inst.to_u64 self.x
+
+(** Trait implementation: [traits::Wrapper::{4}] *)
+let wrapper_ToU64Inst (t : Type0) (inst : toU64_t t) : toU64_t (wrapper_t t)
+ = {
+ to_u64 = wrapper_to_u64 t inst;
+}
+
+(** [traits::h1]: forward function *)
+let h1 (x : wrapper_t u64) : result u64 =
+ wrapper_to_u64 u64 u64_ToU64Inst x
+
+(** [traits::h2]: forward function *)
+let h2 (t : Type0) (inst : toU64_t t) (x : wrapper_t t) : result u64 =
+ wrapper_to_u64 t inst x
+
+(** Trait declaration: [traits::ToType] *)
+noeq type toType_t (self t : Type0) = { to_type : self -> result t; }
+
+(** [traits::u64::{5}::to_type]: forward function *)
+let u64_to_type (self : u64) : result bool =
+ Return (self > 0)
+
+(** Trait implementation: [traits::u64::{5}] *)
+let u64_ToTypeInst : toType_t u64 bool = { to_type = u64_to_type; }
+
+(** Trait declaration: [traits::OfType] *)
+noeq type ofType_t (self : Type0) = {
+ of_type : (t : Type0) -> (inst : toType_t t self) -> t -> result self;
+}
+
+(** [traits::h3]: forward function *)
+let h3
+ (t1 t2 : Type0) (inst : ofType_t t1) (inst0 : toType_t t2 t1) (y : t2) :
+ result t1
+ =
+ inst.of_type t2 inst0 y
+
+(** Trait declaration: [traits::OfTypeBis] *)
+noeq type ofTypeBis_t (self t : Type0) = {
+ parent_clause_0 : toType_t t self;
+ of_type : t -> result self;
+}
+
+(** [traits::h4]: forward function *)
+let h4
+ (t1 t2 : Type0) (inst : ofTypeBis_t t1 t2) (inst0 : toType_t t2 t1)
+ (y : t2) :
+ result t1
+ =
+ inst.of_type y
+
+(** [traits::TestType] *)
+type testType_t (t : Type0) = { _0 : t; }
+
+(** [traits::TestType::{6}::test::TestType1] *)
+type testType_test_TestType1_t = { _0 : u64; }
+
+(** Trait declaration: [traits::TestType::{6}::test::TestTrait] *)
+noeq type testType_test_TestTrait_t (self : Type0) = {
+ test : self -> result bool;
+}
+
+(** [traits::TestType::{6}::test::TestType1::{0}::test]: forward function *)
+let testType_test_TestType1_test
+ (self : testType_test_TestType1_t) : result bool =
+ Return (self._0 > 1)
+
+(** Trait implementation: [traits::TestType::{6}::test::TestType1::{0}] *)
+let testType_test_TestType1_TestType_test_TestTraitInst :
+ testType_test_TestTrait_t testType_test_TestType1_t = {
+ test = testType_test_TestType1_test;
+}
+
+(** [traits::TestType::{6}::test]: forward function *)
+let testType_test
+ (t : Type0) (inst : toU64_t t) (self : testType_t t) (x : t) : result bool =
+ let* x0 = inst.to_u64 x in
+ if x0 > 0 then testType_test_TestType1_test { _0 = 0 } else Return false
+
+(** [traits::BoolWrapper] *)
+type boolWrapper_t = { _0 : bool; }
+
+(** [traits::BoolWrapper::{7}::to_type]: forward function *)
+let boolWrapper_to_type
+ (t : Type0) (inst : toType_t bool t) (self : boolWrapper_t) : result t =
+ inst.to_type self._0
+
+(** Trait implementation: [traits::BoolWrapper::{7}] *)
+let boolWrapper_ToTypeInst (t : Type0) (inst : toType_t bool t) : toType_t
+ boolWrapper_t t = {
+ to_type = boolWrapper_to_type t inst;
+}
+
+(** [traits::WithConstTy::LEN2] *)
+let with_const_ty_len2_body : result usize = Return 32
+let with_const_ty_len2_c : usize = eval_global with_const_ty_len2_body
+
+(** Trait declaration: [traits::WithConstTy] *)
+noeq type withConstTy_t (self : Type0) (len : usize) = {
+ cLEN1 : usize;
+ cLEN2 : usize;
+ tV : Type0;
+ tW : Type0;
+ tW_clause_0 : toU64_t tW;
+ f : tW -> array u8 len -> result tW;
+}
+
+(** [traits::Bool::{8}::LEN1] *)
+let bool_len1_body : result usize = Return 12
+let bool_len1_c : usize = eval_global bool_len1_body
+
+(** [traits::Bool::{8}::f]: merged forward/backward function
+ (there is a single backward function, and the forward function returns ()) *)
+let bool_f (i : u64) (a : array u8 32) : result u64 =
+ Return i
+
+(** Trait implementation: [traits::Bool::{8}] *)
+let bool_WithConstTyInst : withConstTy_t bool 32 = {
+ cLEN1 = bool_len1_c;
+ cLEN2 = with_const_ty_len2_c;
+ tV = u8;
+ tW = u64;
+ tW_clause_0 = u64_ToU64Inst;
+ f = bool_f;
+}
+
+(** [traits::use_with_const_ty1]: forward function *)
+let use_with_const_ty1
+ (h : Type0) (len : usize) (inst : withConstTy_t h len) : result usize =
+ let i = inst.cLEN1 in Return i
+
+(** [traits::use_with_const_ty2]: forward function *)
+let use_with_const_ty2
+ (h : Type0) (len : usize) (inst : withConstTy_t h len) (w : inst.tW) :
+ result unit
+ =
+ Return ()
+
+(** [traits::use_with_const_ty3]: forward function *)
+let use_with_const_ty3
+ (h : Type0) (len : usize) (inst : withConstTy_t h len) (x : inst.tW) :
+ result u64
+ =
+ inst.tW_clause_0.to_u64 x
+
+(** [traits::test_where1]: forward function *)
+let test_where1 (t : Type0) (_x : t) : result unit =
+ Return ()
+
+(** [traits::test_where2]: forward function *)
+let test_where2
+ (t : Type0) (inst : withConstTy_t t 32) (_x : u32) : result unit =
+ Return ()
+
+(** [alloc::string::String] *)
+assume type alloc_string_String_t : Type0
+
+(** Trait declaration: [traits::ParentTrait0] *)
+noeq type parentTrait0_t (self : Type0) = {
+ tW : Type0;
+ get_name : self -> result alloc_string_String_t;
+ get_w : self -> result tW;
+}
+
+(** Trait declaration: [traits::ParentTrait1] *)
+type parentTrait1_t (self : Type0) = unit
+
+(** Trait declaration: [traits::ChildTrait] *)
+noeq type childTrait_t (self : Type0) = {
+ parent_clause_0 : parentTrait0_t self;
+ parent_clause_1 : parentTrait1_t self;
+}
+
+(** [traits::test_child_trait1]: forward function *)
+let test_child_trait1
+ (t : Type0) (inst : childTrait_t t) (x : t) : result alloc_string_String_t =
+ inst.parent_clause_0.get_name x
+
+(** [traits::test_child_trait2]: forward function *)
+let test_child_trait2
+ (t : Type0) (inst : childTrait_t t) (x : t) :
+ result inst.parent_clause_0.tW
+ =
+ inst.parent_clause_0.get_w x
+
+(** [traits::order1]: forward function *)
+let order1
+ (t u : Type0) (inst : parentTrait0_t t) (inst0 : parentTrait0_t u) :
+ result unit
+ =
+ Return ()
+
+(** Trait declaration: [traits::ChildTrait1] *)
+noeq type childTrait1_t (self : Type0) = {
+ parent_clause_0 : parentTrait1_t self;
+}
+
+(** Trait implementation: [traits::usize::{9}] *)
+let usize_ParentTrait1Inst : parentTrait1_t usize = ()
+
+(** Trait implementation: [traits::usize::{10}] *)
+let usize_ChildTrait1Inst : childTrait1_t usize = {
+ parent_clause_0 = usize_ParentTrait1Inst;
+}
+
+(** Trait declaration: [traits::Iterator] *)
+noeq type iterator_t (self : Type0) = { tItem : Type0; }
+
+(** Trait declaration: [traits::IntoIterator] *)
+noeq type intoIterator_t (self : Type0) = {
+ tItem : Type0;
+ tIntoIter : Type0;
+ tIntoIter_clause_0 : iterator_t tIntoIter;
+ into_iter : self -> result tIntoIter;
+}
+
+(** Trait declaration: [traits::FromResidual] *)
+type fromResidual_t (self t : Type0) = unit
+
+(** Trait declaration: [traits::Try] *)
+noeq type try_t (self : Type0) = {
+ parent_clause_0 : fromResidual_t self tResidual;
+ tResidual : Type0;
+}
+
+(** Trait declaration: [traits::CFnOnce] *)
+noeq type cFnOnce_t (self args : Type0) = {
+ tOutput : Type0;
+ call_once : self -> args -> result tOutput;
+}
+
+(** Trait declaration: [traits::CFnMut] *)
+noeq type cFnMut_t (self args : Type0) = {
+ parent_clause_0 : cFnOnce_t self args;
+ call_mut : self -> args -> result parent_clause_0.tOutput;
+ call_mut_back : self -> args -> parent_clause_0.tOutput -> result self;
+}
+
+(** Trait declaration: [traits::CFn] *)
+noeq type cFn_t (self args : Type0) = {
+ parent_clause_0 : cFnMut_t self args;
+ call_mut : self -> args -> result parent_clause_0.parent_clause_0.tOutput;
+}
+
+(** Trait declaration: [core::ops::function::FnOnce] *)
+noeq type core_ops_function_FnOnce_t (self args : Type0) = {
+ tOutput : Type0;
+ call_once : self -> args -> result tOutput;
+}
+
+(** Trait declaration: [core::ops::function::FnMut] *)
+noeq type core_ops_function_FnMut_t (self args : Type0) = {
+ parent_clause_0 : core_ops_function_FnOnce_t self args;
+ call_mut : self -> args -> result parent_clause_0.tOutput;
+ call_mut_back : self -> args -> parent_clause_0.tOutput -> result self;
+}
+
+(** Trait declaration: [core::ops::function::Fn] *)
+noeq type core_ops_function_Fn_t (self args : Type0) = {
+ parent_clause_0 : core_ops_function_FnMut_t self args;
+ call : self -> args -> result parent_clause_0.parent_clause_0.tOutput;
+}
+
+(** [traits::map_option]: forward function *)
+let map_option
+ (t f0 : Type0) (inst : core_ops_function_Fn_t f0 t) (x : option t)
+ (f1 : f0) :
+ result (option t)
+ =
+ begin match x with
+ | None -> Return None
+ | Some x0 -> let* x1 = inst.call f1 x0 in Return (Some x1)
+ end
+
+(** Trait declaration: [traits::WithTarget] *)
+noeq type withTarget_t (self : Type0) = { tTarget : Type0; }
+
+(** Trait declaration: [traits::ParentTrait2] *)
+noeq type parentTrait2_t (self : Type0) = {
+ tU : Type0;
+ tU_clause_0 : withTarget_t tU;
+}
+
+(** Trait declaration: [traits::ChildTrait2] *)
+noeq type childTrait2_t (self : Type0) = {
+ parent_clause_0 : parentTrait2_t self;
+ convert : parent_clause_0.tU -> result parent_clause_0.tU_clause_0.tTarget;
+}
+
+(** Trait implementation: [traits::u32::{11}] *)
+let u32_WithTargetInst : withTarget_t u32 = { tTarget = u32; }
+
+(** Trait implementation: [traits::u32::{12}] *)
+let u32_ParentTrait2Inst : parentTrait2_t u32 = {
+ tU = u32;
+ tU_clause_0 = u32_WithTargetInst;
+}
+
+(** [traits::u32::{13}::convert]: forward function *)
+let u32_convert (x : u32) : result u32 =
+ Return x
+
+(** Trait implementation: [traits::u32::{13}] *)
+let u32_ChildTrait2Inst : childTrait2_t u32 = {
+ parent_clause_0 = u32_ParentTrait2Inst;
+ convert = u32_convert;
+}
+
+(** [traits::incr_u32]: forward function *)
+let incr_u32 (x : u32) : result u32 =
+ u32_add x 1
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-19 11:24:35 +0000