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090faf8c9f
catala/compiler/scalc/to_python.ml
Louis Gesbert 090faf8c9f Fix statement ordering in scalc
2024-04-23 16:01:23 +02:00

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OCaml
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(* This file is part of the Catala compiler, a specification language for tax
and social benefits computation rules. Copyright (C) 2020 Inria, contributor:
Denis Merigoux <denis.merigoux@inria.fr>
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License. *)
open Catala_utils
open Shared_ast
open Ast
module Runtime = Runtime_ocaml.Runtime
module D = Dcalc.Ast
module L = Lcalc.Ast
let format_lit (fmt : Format.formatter) (l : lit Mark.pos) : unit =
match Mark.remove l with
| LBool true -> Format.pp_print_string fmt "True"
| LBool false -> Format.pp_print_string fmt "False"
| LInt i ->
Format.fprintf fmt "integer_of_string(\"%s\")" (Runtime.integer_to_string i)
| LUnit -> Format.pp_print_string fmt "Unit()"
| LRat i -> Format.fprintf fmt "decimal_of_string(\"%a\")" Print.lit (LRat i)
| LMoney e ->
Format.fprintf fmt "money_of_cents_string(\"%s\")"
(Runtime.integer_to_string (Runtime.money_to_cents e))
| LDate d ->
Format.fprintf fmt "date_of_numbers(%d,%d,%d)"
(Runtime.integer_to_int (Runtime.year_of_date d))
(Runtime.integer_to_int (Runtime.month_number_of_date d))
(Runtime.integer_to_int (Runtime.day_of_month_of_date d))
| LDuration d ->
let years, months, days = Runtime.duration_to_years_months_days d in
Format.fprintf fmt "duration_of_numbers(%d,%d,%d)" years months days
let format_op (fmt : Format.formatter) (op : operator Mark.pos) : unit =
match Mark.remove op with
| Log (_entry, _infos) -> assert false
| Minus_int | Minus_rat | Minus_mon | Minus_dur ->
Format.pp_print_string fmt "-"
(* Todo: use the names from [Operator.name] *)
| Not -> Format.pp_print_string fmt "not"
| Length -> Format.pp_print_string fmt "list_length"
| ToRat_int -> Format.pp_print_string fmt "decimal_of_integer"
| ToRat_mon -> Format.pp_print_string fmt "decimal_of_money"
| ToMoney_rat -> Format.pp_print_string fmt "money_of_decimal"
| GetDay -> Format.pp_print_string fmt "day_of_month_of_date"
| GetMonth -> Format.pp_print_string fmt "month_number_of_date"
| GetYear -> Format.pp_print_string fmt "year_of_date"
| FirstDayOfMonth -> Format.pp_print_string fmt "first_day_of_month"
| LastDayOfMonth -> Format.pp_print_string fmt "last_day_of_month"
| Round_mon -> Format.pp_print_string fmt "money_round"
| Round_rat -> Format.pp_print_string fmt "decimal_round"
| Add_int_int | Add_rat_rat | Add_mon_mon | Add_dat_dur _ | Add_dur_dur
| Concat ->
Format.pp_print_string fmt "+"
| Sub_int_int | Sub_rat_rat | Sub_mon_mon | Sub_dat_dat | Sub_dat_dur
| Sub_dur_dur ->
Format.pp_print_string fmt "-"
| Mult_int_int | Mult_rat_rat | Mult_mon_rat | Mult_dur_int ->
Format.pp_print_string fmt "*"
| Div_int_int | Div_rat_rat | Div_mon_mon | Div_mon_rat | Div_dur_dur ->
Format.pp_print_string fmt "/"
| And -> Format.pp_print_string fmt "and"
| Or -> Format.pp_print_string fmt "or"
| Eq -> Format.pp_print_string fmt "=="
| Xor -> Format.pp_print_string fmt "!="
| Lt_int_int | Lt_rat_rat | Lt_mon_mon | Lt_dat_dat | Lt_dur_dur ->
Format.pp_print_string fmt "<"
| Lte_int_int | Lte_rat_rat | Lte_mon_mon | Lte_dat_dat | Lte_dur_dur ->
Format.pp_print_string fmt "<="
| Gt_int_int | Gt_rat_rat | Gt_mon_mon | Gt_dat_dat | Gt_dur_dur ->
Format.pp_print_string fmt ">"
| Gte_int_int | Gte_rat_rat | Gte_mon_mon | Gte_dat_dat | Gte_dur_dur ->
Format.pp_print_string fmt ">="
| Eq_int_int | Eq_rat_rat | Eq_mon_mon | Eq_dat_dat | Eq_dur_dur ->
Format.pp_print_string fmt "=="
| Map -> Format.pp_print_string fmt "list_map"
| Map2 -> Format.pp_print_string fmt "list_map2"
| Reduce -> Format.pp_print_string fmt "list_reduce"
| Filter -> Format.pp_print_string fmt "list_filter"
| Fold -> Format.pp_print_string fmt "list_fold_left"
| HandleDefault -> Format.pp_print_string fmt "handle_default"
| HandleDefaultOpt -> Format.pp_print_string fmt "handle_default_opt"
| FromClosureEnv | ToClosureEnv -> failwith "unimplemented"
let format_uid_list (fmt : Format.formatter) (uids : Uid.MarkedString.info list)
: unit =
Format.fprintf fmt "[%a]"
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(fun fmt info ->
Format.fprintf fmt "\"%a\"" Uid.MarkedString.format info))
uids
let format_string_list (fmt : Format.formatter) (uids : string list) : unit =
let sanitize_quotes = Re.compile (Re.char '"') in
Format.fprintf fmt "[%a]"
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(fun fmt info ->
Format.fprintf fmt "\"%s\""
(Re.replace sanitize_quotes ~f:(fun _ -> "\\\"") info)))
uids
let avoid_keywords (s : string) : string =
if
match s with
(* list taken from
https://www.programiz.com/python-programming/keyword-list *)
| "False" | "None" | "True" | "and" | "as" | "assert" | "async" | "await"
| "break" | "class" | "continue" | "def" | "del" | "elif" | "else"
| "except" | "finally" | "for" | "from" | "global" | "if" | "import" | "in"
| "is" | "lambda" | "nonlocal" | "not" | "or" | "pass" | "raise" | "return"
| "try" | "while" | "with" | "yield" ->
true
| _ -> false
then s ^ "_"
else s
module StringMap = String.Map
module IntMap = Map.Make (struct
include Int
let format ppf i = Format.pp_print_int ppf i
end)
let clean_name (s : string) : string =
s
|> String.to_snake_case
|> Re.Pcre.substitute ~rex:(Re.Pcre.regexp "\\.") ~subst:(fun _ -> "_dot_")
|> avoid_keywords
let format_name_cleaned (fmt : Format.formatter) (s : string) : unit =
Format.pp_print_string fmt (clean_name s)
(** For each `VarName.t` defined by its string and then by its hash, we keep
track of which local integer id we've given it. This is used to keep
variable naming with low indices rather than one global counter for all
variables. TODO: should be removed when
https://github.com/CatalaLang/catala/issues/240 is fixed. *)
let string_counter_map : int IntMap.t StringMap.t ref = ref StringMap.empty
let format_var (fmt : Format.formatter) (v : VarName.t) : unit =
let v_str = clean_name (Mark.remove (VarName.get_info v)) in
let hash = VarName.hash v in
let local_id =
match StringMap.find_opt v_str !string_counter_map with
| Some ids -> (
match IntMap.find_opt hash ids with
| None ->
let id = 1 + IntMap.fold (fun _ -> Int.max) ids 0 in
string_counter_map :=
StringMap.add v_str (IntMap.add hash id ids) !string_counter_map;
id
| Some local_id -> local_id)
| None ->
string_counter_map :=
StringMap.add v_str (IntMap.singleton hash 0) !string_counter_map;
0
in
if v_str = "_" then Format.fprintf fmt "_"
(* special case for the unit pattern *)
else if local_id = 0 then Format.pp_print_string fmt v_str
else Format.fprintf fmt "%s_%d" v_str local_id
let format_path ctx fmt p =
match List.rev p with
| [] -> ()
| m :: _ ->
format_var fmt (ModuleName.Map.find m ctx.modules);
Format.pp_print_char fmt '.'
let format_struct_name ctx (fmt : Format.formatter) (v : StructName.t) : unit =
format_path ctx fmt (StructName.path v);
Format.pp_print_string fmt
(avoid_keywords
(String.to_camel_case
(String.to_ascii (Mark.remove (StructName.get_info v)))))
let format_struct_field_name (fmt : Format.formatter) (v : StructField.t) : unit
=
Format.pp_print_string fmt
(avoid_keywords (String.to_ascii (StructField.to_string v)))
let format_enum_name ctx (fmt : Format.formatter) (v : EnumName.t) : unit =
format_path ctx fmt (EnumName.path v);
Format.pp_print_string fmt
(avoid_keywords
(String.to_camel_case
(String.to_ascii (Mark.remove (EnumName.get_info v)))))
let format_enum_cons_name (fmt : Format.formatter) (v : EnumConstructor.t) :
unit =
Format.pp_print_string fmt
(avoid_keywords (String.to_ascii (EnumConstructor.to_string v)))
let typ_needs_parens (e : typ) : bool =
match Mark.remove e with TArrow _ | TArray _ -> true | _ -> false
let rec format_typ ctx (fmt : Format.formatter) (typ : typ) : unit =
let format_typ = format_typ ctx in
let format_typ_with_parens (fmt : Format.formatter) (t : typ) =
if typ_needs_parens t then Format.fprintf fmt "(%a)" format_typ t
else Format.fprintf fmt "%a" format_typ t
in
match Mark.remove typ with
| TLit TUnit -> Format.fprintf fmt "Unit"
| TLit TMoney -> Format.fprintf fmt "Money"
| TLit TInt -> Format.fprintf fmt "Integer"
| TLit TRat -> Format.fprintf fmt "Decimal"
| TLit TDate -> Format.fprintf fmt "Date"
| TLit TDuration -> Format.fprintf fmt "Duration"
| TLit TBool -> Format.fprintf fmt "bool"
| TTuple ts ->
Format.fprintf fmt "Tuple[%a]"
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ", ")
(fun fmt t -> Format.fprintf fmt "%a" format_typ_with_parens t))
ts
| TStruct s -> Format.fprintf fmt "%a" (format_struct_name ctx) s
| TOption some_typ ->
(* We translate the option type with an overloading by Python's [None] *)
Format.fprintf fmt "Optional[%a]" format_typ some_typ
| TDefault t -> format_typ fmt t
| TEnum e -> Format.fprintf fmt "%a" (format_enum_name ctx) e
| TArrow (t1, t2) ->
Format.fprintf fmt "Callable[[%a], %a]"
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
format_typ_with_parens)
t1 format_typ_with_parens t2
| TArray t1 -> Format.fprintf fmt "List[%a]" format_typ_with_parens t1
| TAny -> Format.fprintf fmt "Any"
| TClosureEnv -> failwith "unimplemented!"
let format_func_name (fmt : Format.formatter) (v : FuncName.t) : unit =
let v_str = Mark.remove (FuncName.get_info v) in
format_name_cleaned fmt v_str
let format_exception (fmt : Format.formatter) (exc : except Mark.pos) : unit =
let pos = Mark.get exc in
match Mark.remove exc with
| ConflictError _ ->
Format.fprintf fmt
"ConflictError(@[<hov 0>SourcePosition(@[<hov 0>filename=\"%s\",@ \
start_line=%d,@ start_column=%d,@ end_line=%d,@ end_column=%d,@ \
law_headings=%a)@])@]"
(Pos.get_file pos) (Pos.get_start_line pos) (Pos.get_start_column pos)
(Pos.get_end_line pos) (Pos.get_end_column pos) format_string_list
(Pos.get_law_info pos)
| EmptyError -> Format.fprintf fmt "EmptyError"
| Crash _ -> Format.fprintf fmt "Crash"
| NoValueProvided ->
Format.fprintf fmt
"NoValueProvided(@[<hov 0>SourcePosition(@[<hov 0>filename=\"%s\",@ \
start_line=%d,@ start_column=%d,@ end_line=%d,@ end_column=%d,@ \
law_headings=%a)@])@]"
(Pos.get_file pos) (Pos.get_start_line pos) (Pos.get_start_column pos)
(Pos.get_end_line pos) (Pos.get_end_column pos) format_string_list
(Pos.get_law_info pos)
let rec format_expression ctx (fmt : Format.formatter) (e : expr) : unit =
match Mark.remove e with
| EVar v -> format_var fmt v
| EFunc f -> format_func_name fmt f
| EStruct { fields = es; name = s } ->
Format.fprintf fmt "%a(%a)" (format_struct_name ctx) s
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(fun fmt (struct_field, e) ->
Format.fprintf fmt "%a = %a" format_struct_field_name struct_field
(format_expression ctx) e))
(StructField.Map.bindings es)
| EStructFieldAccess { e1; field; _ } ->
Format.fprintf fmt "%a.%a" (format_expression ctx) e1
format_struct_field_name field
| EInj { cons; name = e_name; _ }
when EnumName.equal e_name Expr.option_enum
&& EnumConstructor.equal cons Expr.none_constr ->
(* We translate the option type with an overloading by Python's [None] *)
Format.fprintf fmt "None"
| EInj { e1 = e; cons; name = e_name; _ }
when EnumName.equal e_name Expr.option_enum
&& EnumConstructor.equal cons Expr.some_constr ->
(* We translate the option type with an overloading by Python's [None] *)
format_expression ctx fmt e
| EInj { e1 = e; cons; name = enum_name; _ } ->
Format.fprintf fmt "%a(%a_Code.%a,@ %a)" (format_enum_name ctx) enum_name
(format_enum_name ctx) enum_name format_enum_cons_name cons
(format_expression ctx) e
| EArray es ->
Format.fprintf fmt "[%a]"
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(fun fmt e -> Format.fprintf fmt "%a" (format_expression ctx) e))
es
| ELit l -> Format.fprintf fmt "%a" format_lit (Mark.copy e l)
| EAppOp { op = (Map | Filter) as op; args = [arg1; arg2] } ->
Format.fprintf fmt "%a(%a,@ %a)" format_op (op, Pos.no_pos)
(format_expression ctx) arg1 (format_expression ctx) arg2
| EAppOp { op; args = [arg1; arg2] } ->
Format.fprintf fmt "(%a %a@ %a)" (format_expression ctx) arg1 format_op
(op, Pos.no_pos) (format_expression ctx) arg2
| EApp
{ f = EAppOp { op = Log (BeginCall, info); args = [f] }, _; args = [arg] }
when Global.options.trace ->
Format.fprintf fmt "log_begin_call(%a,@ %a,@ %a)" format_uid_list info
(format_expression ctx) f (format_expression ctx) arg
| EAppOp { op = Log (VarDef var_def_info, info); args = [arg1] }
when Global.options.trace ->
Format.fprintf fmt
"log_variable_definition(%a,@ LogIO(input_io=InputIO.%s,@ \
output_io=%s),@ %a)"
format_uid_list info
(match var_def_info.log_io_input with
| Runtime.NoInput -> "NoInput"
| Runtime.OnlyInput -> "OnlyInput"
| Runtime.Reentrant -> "Reentrant")
(if var_def_info.log_io_output then "True" else "False")
(format_expression ctx) arg1
| EAppOp { op = Log (PosRecordIfTrueBool, _); args = [arg1] }
when Global.options.trace ->
let pos = Mark.get e in
Format.fprintf fmt
"log_decision_taken(SourcePosition(filename=\"%s\",@ start_line=%d,@ \
start_column=%d,@ end_line=%d, end_column=%d,@ law_headings=%a), %a)"
(Pos.get_file pos) (Pos.get_start_line pos) (Pos.get_start_column pos)
(Pos.get_end_line pos) (Pos.get_end_column pos) format_string_list
(Pos.get_law_info pos) (format_expression ctx) arg1
| EAppOp { op = Log (EndCall, info); args = [arg1] } when Global.options.trace
->
Format.fprintf fmt "log_end_call(%a,@ %a)" format_uid_list info
(format_expression ctx) arg1
| EAppOp { op = Log _; args = [arg1] } ->
Format.fprintf fmt "%a" (format_expression ctx) arg1
| EAppOp { op = Not; args = [arg1] } ->
Format.fprintf fmt "%a %a" format_op (Not, Pos.no_pos)
(format_expression ctx) arg1
| EAppOp
{
op = (Minus_int | Minus_rat | Minus_mon | Minus_dur) as op;
args = [arg1];
} ->
Format.fprintf fmt "%a %a" format_op (op, Pos.no_pos)
(format_expression ctx) arg1
| EAppOp { op; args = [arg1] } ->
Format.fprintf fmt "%a(%a)" format_op (op, Pos.no_pos)
(format_expression ctx) arg1
| EAppOp { op = (HandleDefault | HandleDefaultOpt) as op; args } ->
let pos = Mark.get e in
Format.fprintf fmt
"%a(@[<hov 0>SourcePosition(filename=\"%s\",@ start_line=%d,@ \
start_column=%d,@ end_line=%d, end_column=%d,@ law_headings=%a), %a)@]"
format_op (op, pos) (Pos.get_file pos) (Pos.get_start_line pos)
(Pos.get_start_column pos) (Pos.get_end_line pos) (Pos.get_end_column pos)
format_string_list (Pos.get_law_info pos)
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(format_expression ctx))
args
| EApp { f = EFunc x, pos; args }
when Ast.FuncName.compare x Ast.handle_default = 0
|| Ast.FuncName.compare x Ast.handle_default_opt = 0 ->
Format.fprintf fmt
"%a(@[<hov 0>SourcePosition(filename=\"%s\",@ start_line=%d,@ \
start_column=%d,@ end_line=%d, end_column=%d,@ law_headings=%a), %a)@]"
format_func_name x (Pos.get_file pos) (Pos.get_start_line pos)
(Pos.get_start_column pos) (Pos.get_end_line pos) (Pos.get_end_column pos)
format_string_list (Pos.get_law_info pos)
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(format_expression ctx))
args
| EApp { f; args } ->
Format.fprintf fmt "%a(@[<hov 0>%a)@]" (format_expression ctx) f
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(format_expression ctx))
args
| EAppOp { op; args } ->
Format.fprintf fmt "%a(@[<hov 0>%a)@]" format_op (op, Pos.no_pos)
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(format_expression ctx))
args
| ETuple es ->
Format.fprintf fmt "(%a)"
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(fun fmt e -> Format.fprintf fmt "%a" (format_expression ctx) e))
es
| ETupleAccess { e1; index } ->
Format.fprintf fmt "%a[%d]" (format_expression ctx) e1 index
| EExternal { modname; name } ->
Format.fprintf fmt "%a.%a" format_var (Mark.remove modname)
format_name_cleaned (Mark.remove name)
let rec format_statement ctx (fmt : Format.formatter) (s : stmt Mark.pos) : unit
=
match Mark.remove s with
| SInnerFuncDef { name; func = { func_params; func_body; _ } } ->
Format.fprintf fmt "@[<hov 4>def %a(%a):@\n%a@]" format_var
(Mark.remove name)
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ", ")
(fun fmt (var, typ) ->
Format.fprintf fmt "%a:%a" format_var (Mark.remove var)
(format_typ ctx) typ))
func_params (format_block ctx) func_body
| SLocalDecl _ ->
assert false (* We don't need to declare variables in Python *)
| SLocalDef { name = v; expr = e; _ } | SLocalInit { name = v; expr = e; _ }
->
Format.fprintf fmt "@[<hov 4>%a = %a@]" format_var (Mark.remove v)
(format_expression ctx) e
| STryExcept { try_block = try_b; except; with_block = catch_b } ->
Format.fprintf fmt "@[<hov 4>try:@\n%a@]@\n@[<hov 4>except %a:@\n%a@]"
(format_block ctx) try_b format_exception (except, Pos.no_pos)
(format_block ctx) catch_b
| SRaise except ->
Format.fprintf fmt "@[<hov 4>raise %a@]" format_exception
(except, Mark.get s)
| SIfThenElse { if_expr = cond; then_block = b1; else_block = b2 } ->
Format.fprintf fmt "@[<hov 4>if %a:@\n%a@]@\n@[<hov 4>else:@\n%a@]"
(format_expression ctx) cond (format_block ctx) b1 (format_block ctx) b2
| SSwitch
{
switch_expr = e1;
enum_name = e_name;
switch_cases =
[
{ case_block = case_none; _ };
{ case_block = case_some; payload_var_name = case_some_var; _ };
];
_;
}
when EnumName.equal e_name Expr.option_enum ->
(* We translate the option type with an overloading by Python's [None] *)
let tmp_var = VarName.fresh ("perhaps_none_arg", Pos.no_pos) in
Format.fprintf fmt "%a = %a@\n" format_var tmp_var (format_expression ctx)
e1;
Format.fprintf fmt "@[<v 4>if %a is None:@\n%a@]@\n" format_var tmp_var
(format_block ctx) case_none;
Format.fprintf fmt "@[<v 4>else:@\n%a = %a@\n%a@]" format_var case_some_var
format_var tmp_var (format_block ctx) case_some
| SSwitch { switch_expr = e1; enum_name = e_name; switch_cases = cases; _ } ->
let cons_map = EnumName.Map.find e_name ctx.decl_ctx.ctx_enums in
let cases =
List.map2
(fun x (cons, _) -> x, cons)
cases
(EnumConstructor.Map.bindings cons_map)
in
let tmp_var = VarName.fresh ("match_arg", Pos.no_pos) in
Format.fprintf fmt "%a = %a@\n@[<hov 4>if %a@]" format_var tmp_var
(format_expression ctx) e1
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt "@]@\n@[<hov 4>elif ")
(fun fmt ({ case_block; payload_var_name; _ }, cons_name) ->
Format.fprintf fmt "%a.code == %a_Code.%a:@\n%a = %a.value@\n%a"
format_var tmp_var (format_enum_name ctx) e_name
format_enum_cons_name cons_name format_var payload_var_name
format_var tmp_var (format_block ctx) case_block))
cases
| SReturn e1 ->
Format.fprintf fmt "@[<hov 4>return %a@]" (format_expression ctx)
(e1, Mark.get s)
| SAssert e1 ->
let pos = Mark.get s in
Format.fprintf fmt
"@[<hov 4>if not (%a):@\n\
raise AssertionFailure(@[<hov 0>SourcePosition(@[<hov \
0>filename=\"%s\",@ start_line=%d,@ start_column=%d,@ end_line=%d,@ \
end_column=%d,@ law_headings=@[<hv>%a@])@])@]@]"
(format_expression ctx)
(e1, Mark.get s)
(Pos.get_file pos) (Pos.get_start_line pos) (Pos.get_start_column pos)
(Pos.get_end_line pos) (Pos.get_end_column pos) format_string_list
(Pos.get_law_info pos)
| SSpecialOp _ -> failwith "should not happen"
and format_block ctx (fmt : Format.formatter) (b : block) : unit =
Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt "@\n")
(format_statement ctx) fmt
(List.filter
(fun s -> match Mark.remove s with SLocalDecl _ -> false | _ -> true)
b)
let format_ctx
(type_ordering : Scopelang.Dependency.TVertex.t list)
(fmt : Format.formatter)
ctx : unit =
let format_struct_decl fmt (struct_name, struct_fields) =
let fields = StructField.Map.bindings struct_fields in
Format.fprintf fmt
"class %a:@\n\
\ def __init__(self, %a) -> None:@\n\
%a@\n\
@\n\
\ def __eq__(self, other: object) -> bool:@\n\
\ if isinstance(other, %a):@\n\
\ return @[<hov>(%a)@]@\n\
\ else:@\n\
\ return False@\n\
@\n\
\ def __ne__(self, other: object) -> bool:@\n\
\ return not (self == other)@\n\
@\n\
\ def __str__(self) -> str:@\n\
\ @[<hov 4>return \"%a(%a)\".format(%a)@]" (format_struct_name ctx)
struct_name
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ", ")
(fun fmt (struct_field, struct_field_type) ->
Format.fprintf fmt "%a: %a" format_struct_field_name struct_field
(format_typ ctx) struct_field_type))
fields
(if StructField.Map.is_empty struct_fields then fun fmt _ ->
Format.fprintf fmt " pass"
else
Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt "@\n")
(fun fmt (struct_field, _) ->
Format.fprintf fmt " self.%a = %a" format_struct_field_name
struct_field format_struct_field_name struct_field))
fields (format_struct_name ctx) struct_name
(if not (StructField.Map.is_empty struct_fields) then
Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt " and@ ")
(fun fmt (struct_field, _) ->
Format.fprintf fmt "self.%a == other.%a" format_struct_field_name
struct_field format_struct_field_name struct_field)
else fun fmt _ -> Format.fprintf fmt "True")
fields (format_struct_name ctx) struct_name
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",")
(fun fmt (struct_field, _) ->
Format.fprintf fmt "%a={}" format_struct_field_name struct_field))
fields
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ",@ ")
(fun fmt (struct_field, _) ->
Format.fprintf fmt "self.%a" format_struct_field_name struct_field))
fields
in
let format_enum_decl fmt (enum_name, enum_cons) =
if EnumConstructor.Map.is_empty enum_cons then
failwith "no constructors in the enum"
else
Format.fprintf fmt
"@[<hov 4>class %a_Code(Enum):@\n\
%a@]@\n\
@\n\
class %a:@\n\
\ def __init__(self, code: %a_Code, value: Any) -> None:@\n\
\ self.code = code@\n\
\ self.value = value@\n\
@\n\
@\n\
\ def __eq__(self, other: object) -> bool:@\n\
\ if isinstance(other, %a):@\n\
\ return self.code == other.code and self.value == \
other.value@\n\
\ else:@\n\
\ return False@\n\
@\n\
@\n\
\ def __ne__(self, other: object) -> bool:@\n\
\ return not (self == other)@\n\
@\n\
\ def __str__(self) -> str:@\n\
\ @[<hov 4>return \"{}({})\".format(self.code, self.value)@]"
(format_enum_name ctx) enum_name
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt "@\n")
(fun fmt (i, enum_cons, _enum_cons_type) ->
Format.fprintf fmt "%a = %d" format_enum_cons_name enum_cons i))
(List.mapi
(fun i (x, y) -> i, x, y)
(EnumConstructor.Map.bindings enum_cons))
(format_enum_name ctx) enum_name (format_enum_name ctx) enum_name
(format_enum_name ctx) enum_name
in
let is_in_type_ordering s =
List.exists
(fun struct_or_enum ->
match struct_or_enum with
| Scopelang.Dependency.TVertex.Enum _ -> false
| Scopelang.Dependency.TVertex.Struct s' -> s = s')
type_ordering
in
let scope_structs =
List.map
(fun (s, _) -> Scopelang.Dependency.TVertex.Struct s)
(StructName.Map.bindings
(StructName.Map.filter
(fun s _ -> not (is_in_type_ordering s))
ctx.decl_ctx.ctx_structs))
in
List.iter
(fun struct_or_enum ->
match struct_or_enum with
| Scopelang.Dependency.TVertex.Struct s ->
if StructName.path s = [] then
Format.fprintf fmt "%a@\n@\n" format_struct_decl
(s, StructName.Map.find s ctx.decl_ctx.ctx_structs)
| Scopelang.Dependency.TVertex.Enum e ->
if EnumName.path e = [] then
Format.fprintf fmt "%a@\n@\n" format_enum_decl
(e, EnumName.Map.find e ctx.decl_ctx.ctx_enums))
(type_ordering @ scope_structs)
(* FIXME: this is an ugly (and partial) workaround, Python basically has one
namespace and we reserve the name to avoid clashes between func ids and
variable ids. *)
let reserve_func_name = function
| SVar _ -> ()
| SFunc { var = v; _ } | SScope { scope_body_var = v; _ } ->
let v_str = clean_name (Mark.remove (FuncName.get_info v)) in
string_counter_map :=
StringMap.add v_str (IntMap.singleton (-1) 0) !string_counter_map
let format_code_item ctx fmt = function
| SVar { var; expr; typ = _ } ->
Format.fprintf fmt "@[<hv 4>%a = (@,%a@,@])@," format_var var
(format_expression ctx) expr
| SFunc { var; func }
| SScope { scope_body_var = var; scope_body_func = func; _ } ->
let { Ast.func_params; Ast.func_body; _ } = func in
Format.fprintf fmt "@[<hv 4>def %a(%a):@\n%a@]@," format_func_name var
(Format.pp_print_list
~pp_sep:(fun fmt () -> Format.fprintf fmt ", ")
(fun fmt (var, typ) ->
Format.fprintf fmt "%a:%a" format_var (Mark.remove var)
(format_typ ctx) typ))
func_params (format_block ctx) func_body
let format_program
(fmt : Format.formatter)
(p : Ast.program)
(type_ordering : Scopelang.Dependency.TVertex.t list) : unit =
List.iter reserve_func_name p.code_items;
Format.pp_open_vbox fmt 0;
let header =
[
"# This file has been generated by the Catala compiler, do not edit!";
"";
"from catala.runtime import *";
"from typing import Any, List, Callable, Tuple";
"from enum import Enum";
"";
]
in
Format.pp_print_list Format.pp_print_string fmt header;
ModuleName.Map.iter
(fun m v ->
Format.fprintf fmt "from . import %a as %a@," ModuleName.format m
format_var v)
p.ctx.modules;
Format.pp_print_cut fmt ();
format_ctx type_ordering fmt p.ctx;
Format.pp_print_cut fmt ();
Format.pp_print_list (format_code_item p.ctx) fmt p.code_items;
Format.pp_print_flush fmt ()
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