mirror of
https://github.com/CatalaLang/catala.git
synced 2024-11-08 07:51:43 +03:00
Simplify monomorphisation, and preserve type annotations
This commit is contained in:
Louis Gesbert
parent
22674cd15d
commit
df70c5dd57
@ -212,112 +212,96 @@ let is_some c =
|
||||
(assert (EnumConstructor.equal Expr.none_constr c);
|
||||
false)
|
||||
|
||||
(* We output a typed expr but the types in the output are wrong, it should be
|
||||
untyped and re-typed later. *)
|
||||
let rec monomorphize_expr
|
||||
(monomorphized_instances : monomorphized_instances)
|
||||
(e : typed expr) : typed expr boxed =
|
||||
let typ = Expr.ty e in
|
||||
match Mark.remove e with
|
||||
(e0 : typed expr) : typed expr boxed =
|
||||
let ty0 = Expr.ty e0 in
|
||||
(* Keys in [monomorphized_instances] are before monomorphization, so collect
|
||||
this top-down *)
|
||||
let f_expr = monomorphize_expr monomorphized_instances in
|
||||
let f_ty = monomorphize_typ monomorphized_instances in
|
||||
(* Proceed bottom-up: apply first to the sub-terms *)
|
||||
let e = Expr.map ~f:f_expr ~typ:f_ty ~op:Fun.id e0 in
|
||||
let m = Mark.get e in
|
||||
let map_box f = Expr.Box.app1 e (fun e -> f (Mark.remove e)) m in
|
||||
map_box
|
||||
@@ function
|
||||
| ETuple args ->
|
||||
let new_args = List.map (monomorphize_expr monomorphized_instances) args in
|
||||
let tuple_instance = Type.Map.find typ monomorphized_instances.tuples in
|
||||
let fields =
|
||||
let tuple_instance = Type.Map.find ty0 monomorphized_instances.tuples in
|
||||
EStruct
|
||||
{
|
||||
name = tuple_instance.name;
|
||||
fields =
|
||||
StructField.Map.of_list
|
||||
@@ List.map2
|
||||
(fun new_arg (tuple_field, _) -> tuple_field, new_arg)
|
||||
new_args tuple_instance.fields
|
||||
(fun (tuple_field, _) arg -> tuple_field, arg)
|
||||
tuple_instance.fields args;
|
||||
}
|
||||
| ETupleAccess { e; index; _ } ->
|
||||
(* The type of the tuple needs to be recovered from the untransformed
|
||||
expr *)
|
||||
let tup_ty =
|
||||
match e0 with ETupleAccess { e; _ }, _ -> Expr.ty e | _ -> assert false
|
||||
in
|
||||
Expr.estruct ~name:tuple_instance.name ~fields (Mark.get e)
|
||||
| ETupleAccess { e = e1; index; _ } ->
|
||||
let tuple_instance =
|
||||
Type.Map.find (Expr.ty e1) monomorphized_instances.tuples
|
||||
in
|
||||
let new_e1 = monomorphize_expr monomorphized_instances e1 in
|
||||
Expr.estructaccess ~name:tuple_instance.name
|
||||
~field:(fst (List.nth tuple_instance.fields index))
|
||||
~e:new_e1 (Mark.get e)
|
||||
| EMatch { name; e = e1; cases } when EnumName.equal name Expr.option_enum ->
|
||||
let new_e1 = monomorphize_expr monomorphized_instances e1 in
|
||||
let new_cases =
|
||||
EnumConstructor.Map.bindings
|
||||
(EnumConstructor.Map.map
|
||||
(monomorphize_expr monomorphized_instances)
|
||||
cases)
|
||||
Type.Map.find tup_ty monomorphized_instances.tuples
|
||||
in
|
||||
EStructAccess
|
||||
{
|
||||
name = tuple_instance.name;
|
||||
e;
|
||||
field = fst (List.nth tuple_instance.fields index);
|
||||
}
|
||||
| EMatch { name; e; cases } when EnumName.equal name Expr.option_enum ->
|
||||
let option_instance = Type.Map.find ty0 monomorphized_instances.options in
|
||||
EMatch
|
||||
{
|
||||
name = option_instance.name;
|
||||
e;
|
||||
cases =
|
||||
EnumConstructor.Map.fold
|
||||
(fun c ->
|
||||
EnumConstructor.Map.add
|
||||
(if is_some c then option_instance.some_cons
|
||||
else option_instance.none_cons))
|
||||
cases EnumConstructor.Map.empty;
|
||||
}
|
||||
| EInj { name; e; cons } when EnumName.equal name Expr.option_enum ->
|
||||
let option_instance =
|
||||
Type.Map.find
|
||||
(match Mark.remove (Expr.ty e1) with
|
||||
| TOption t -> t
|
||||
| _ -> failwith "should not happen")
|
||||
(match Mark.remove ty0 with TOption t -> t | _ -> assert false)
|
||||
monomorphized_instances.options
|
||||
in
|
||||
let new_cases =
|
||||
match new_cases with
|
||||
| [(n1, e1); (n2, e2)] -> (
|
||||
match is_some n1, is_some n2 with
|
||||
| true, false ->
|
||||
[option_instance.some_cons, e1; option_instance.none_cons, e2]
|
||||
| false, true ->
|
||||
[option_instance.some_cons, e2; option_instance.none_cons, e1]
|
||||
| _ -> failwith "should not happen")
|
||||
| _ -> failwith "should not happen"
|
||||
EInj
|
||||
{
|
||||
name = option_instance.name;
|
||||
e;
|
||||
cons =
|
||||
(if is_some cons then option_instance.some_cons
|
||||
else option_instance.none_cons);
|
||||
}
|
||||
| EArray elts as e ->
|
||||
let elt_ty =
|
||||
match Mark.remove ty0 with TArray t -> t | _ -> assert false
|
||||
in
|
||||
let new_cases = EnumConstructor.Map.of_list new_cases in
|
||||
Expr.ematch ~name:option_instance.name ~e:new_e1 ~cases:new_cases
|
||||
(Mark.get e)
|
||||
| EInj { name; e = e1; cons } when EnumName.equal name Expr.option_enum ->
|
||||
let option_instance =
|
||||
Type.Map.find
|
||||
(match Mark.remove (Expr.ty e) with
|
||||
| TOption t -> t
|
||||
| _ -> failwith "should not happen")
|
||||
monomorphized_instances.options
|
||||
in
|
||||
let new_e1 = monomorphize_expr monomorphized_instances e1 in
|
||||
let new_cons =
|
||||
if is_some cons then option_instance.some_cons
|
||||
else option_instance.none_cons
|
||||
in
|
||||
Expr.einj ~name:option_instance.name ~e:new_e1 ~cons:new_cons (Mark.get e)
|
||||
(* We do not forget to tweak types stored directly in the AST in the nodes
|
||||
of kind [EAbs], [EApp] and [EAppOp]. *)
|
||||
| EAbs { binder; tys } ->
|
||||
let new_tys = List.map (monomorphize_typ monomorphized_instances) tys in
|
||||
let vars, body = Bindlib.unmbind binder in
|
||||
let new_body = monomorphize_expr monomorphized_instances body in
|
||||
Expr.make_abs vars new_body new_tys (Expr.pos e)
|
||||
| EApp { f; args; tys } ->
|
||||
let new_f = monomorphize_expr monomorphized_instances f in
|
||||
let new_args = List.map (monomorphize_expr monomorphized_instances) args in
|
||||
let new_tys = List.map (monomorphize_typ monomorphized_instances) tys in
|
||||
Expr.eapp ~f:new_f ~args:new_args ~tys:new_tys (Mark.get e)
|
||||
| EAppOp { op; args; tys } ->
|
||||
let new_args = List.map (monomorphize_expr monomorphized_instances) args in
|
||||
let new_tys = List.map (monomorphize_typ monomorphized_instances) tys in
|
||||
Expr.eappop ~op ~args:new_args ~tys:new_tys (Mark.get e)
|
||||
| EArray args ->
|
||||
let new_args = List.map (monomorphize_expr monomorphized_instances) args in
|
||||
let array_instance =
|
||||
Type.Map.find
|
||||
(match Mark.remove (Expr.ty e) with
|
||||
| TArray t -> t
|
||||
| _ -> failwith "should not happen")
|
||||
monomorphized_instances.arrays
|
||||
in
|
||||
Expr.estruct ~name:array_instance.name
|
||||
~fields:
|
||||
(StructField.Map.add array_instance.content_field
|
||||
(Expr.earray new_args (Mark.get e))
|
||||
(StructField.Map.singleton array_instance.len_field
|
||||
(Expr.elit
|
||||
(LInt (Runtime.integer_of_int (List.length args)))
|
||||
(Mark.get e))))
|
||||
(Mark.get e)
|
||||
| _ -> Expr.map ~f:(monomorphize_expr monomorphized_instances) e
|
||||
let array_instance = Type.Map.find elt_ty monomorphized_instances.arrays in
|
||||
EStruct
|
||||
{
|
||||
name = array_instance.name;
|
||||
fields =
|
||||
StructField.Map.of_list
|
||||
[
|
||||
( array_instance.len_field,
|
||||
( ELit (LInt (Runtime.integer_of_int (List.length elts))),
|
||||
Expr.with_ty m (TLit TInt, Expr.mark_pos m) ) );
|
||||
( array_instance.content_field,
|
||||
(e, Expr.with_ty m (TArray (f_ty elt_ty), Expr.mark_pos m)) );
|
||||
];
|
||||
}
|
||||
| e -> e
|
||||
|
||||
let program (prg : typed program) :
|
||||
untyped program * Scopelang.Dependency.TVertex.t list =
|
||||
typed program * Scopelang.Dependency.TVertex.t list =
|
||||
let monomorphized_instances = collect_monomorphized_instances prg in
|
||||
(* First we remove the polymorphic option type *)
|
||||
let prg =
|
||||
@ -417,7 +401,6 @@ let program (prg : typed program) :
|
||||
scope_body)))
|
||||
~varf:Fun.id prg.code_items
|
||||
in
|
||||
let prg = Program.untype { prg with code_items } in
|
||||
( prg,
|
||||
( { prg with code_items },
|
||||
Scopelang.Dependency.check_type_cycles prg.decl_ctx.ctx_structs
|
||||
prg.decl_ctx.ctx_enums )
|
||||
|
||||
@ -18,7 +18,7 @@ open Shared_ast
|
||||
open Ast
|
||||
|
||||
val program :
|
||||
typed program -> untyped program * Scopelang.Dependency.TVertex.t list
|
||||
typed program -> typed program * Scopelang.Dependency.TVertex.t list
|
||||
(** This function performs type monomorphization in a Catala program with two
|
||||
main actions: {ul
|
||||
{- transforms tuples into named structs.}
|
||||
|
||||
@ -474,13 +474,20 @@ end
|
||||
|
||||
module ExprGen (C : EXPR_PARAM) = struct
|
||||
let rec expr_aux :
|
||||
type a.
|
||||
type a t.
|
||||
Bindlib.ctxt ->
|
||||
Ocolor_types.color4 list ->
|
||||
Format.formatter ->
|
||||
(a, 't) gexpr ->
|
||||
(a, t) gexpr ->
|
||||
unit =
|
||||
fun bnd_ctx colors fmt e ->
|
||||
(* (* Uncomment for type annotations everywhere *)
|
||||
* (fun f ->
|
||||
* Format.fprintf fmt "@[<hv 1>(%a:@ %a)@]"
|
||||
* f e
|
||||
* typ_debug
|
||||
* (match Mark.get e with Typed {ty; _} -> ty | _ -> TAny,Pos.no_pos))
|
||||
* @@ fun fmt e -> *)
|
||||
let exprb bnd_ctx colors e = expr_aux bnd_ctx colors e in
|
||||
let exprc colors e = exprb bnd_ctx colors e in
|
||||
let expr e = exprc colors e in
|
||||
|
||||
Loading…
Reference in New Issue
Block a user