(* Title: Pure/Tools/codegen_serializer.ML
ID: $Id$
Author: Florian Haftmann, TU Muenchen
Serializer from intermediate language ("Thin-gol") to
target languages (like SML or Haskell).
*)
signature CODEGEN_SERIALIZER =
sig
include BASIC_CODEGEN_THINGOL;
val parse_serializer: string
-> OuterParse.token list
-> (theory -> string list option -> CodegenThingol.module -> unit)
* OuterParse.token list
val eval_verbose: bool ref;
val eval_term: theory ->
(string * 'a option ref) * CodegenThingol.iterm -> CodegenThingol.module
-> 'a;
val mk_flat_ml_resolver: string list -> string -> string;
val ml_fun_datatype:
theory -> (string -> string)
-> ((string * ((iterm list * iterm) list * CodegenThingol.typscheme)) list -> Pretty.T)
* ((string * ((vname * sort) list * (string * itype list) list)) list -> Pretty.T);
val const_has_serialization: theory -> string list -> string -> bool;
val tyco_has_serialization: theory -> string list -> string -> bool;
val check_serializer: string -> unit;
val add_syntax_class:
string -> string -> string * (string * string) list -> theory -> theory;
val add_syntax_inst: string -> (string * string) -> theory -> theory;
val parse_syntax_tyco: (theory
-> CodegenConsts.const list * (string * typ) list
-> string
-> CodegenNames.tyco
-> typ list -> CodegenThingol.itype list)
-> Symtab.key
-> xstring
-> OuterParse.token list
-> (theory -> theory) * OuterParse.token list;
val parse_syntax_const: (theory
-> CodegenConsts.const list * (string * typ) list
-> string
-> CodegenNames.const
-> term list -> CodegenThingol.iterm list)
-> Symtab.key
-> string
-> OuterParse.token list
-> (theory -> theory) * OuterParse.token list;
val add_pretty_list: string -> string -> string -> (Pretty.T list -> Pretty.T)
-> ((string -> string) * (string -> string)) option -> int * string
-> theory -> theory;
val add_pretty_ml_string: string -> string -> string -> string
-> (string -> string) -> (string -> string) -> string -> theory -> theory;
val add_undefined: string -> string -> string -> theory -> theory;
end;
structure CodegenSerializer: CODEGEN_SERIALIZER =
struct
open BasicCodegenThingol;
val debug_msg = CodegenThingol.debug_msg;
(** precedences **)
datatype lrx = L | R | X;
datatype fixity =
BR
| NOBR
| INFX of (int * lrx);
type 'a pretty_syntax = int * (fixity -> (fixity -> 'a -> Pretty.T)
-> 'a list -> Pretty.T);
fun eval_lrx L L = false
| eval_lrx R R = false
| eval_lrx _ _ = true;
fun eval_fxy NOBR _ = false
| eval_fxy _ BR = true
| eval_fxy _ NOBR = false
| eval_fxy (INFX (pr, lr)) (INFX (pr_ctxt, lr_ctxt)) =
pr < pr_ctxt
orelse pr = pr_ctxt
andalso eval_lrx lr lr_ctxt
| eval_fxy _ (INFX _) = false;
fun gen_brackify _ [p] = p
| gen_brackify true (ps as _::_) = Pretty.enclose "(" ")" ps
| gen_brackify false (ps as _::_) = Pretty.block ps;
fun brackify fxy_ctxt ps =
gen_brackify (eval_fxy BR fxy_ctxt) (Pretty.breaks ps);
fun brackify_infix infx fxy_ctxt ps =
gen_brackify (eval_fxy (INFX infx) fxy_ctxt) (Pretty.breaks ps);
fun from_app mk_app from_expr const_syntax fxy (const as (c, (_, ty)), es) =
case const_syntax c
of NONE => brackify fxy (mk_app c es)
| SOME (i, pr) =>
let
val k = if i < 0 then (length o fst o CodegenThingol.unfold_fun) ty else i
in if k <= length es
then case chop i es of (es1, es2) =>
brackify fxy (pr fxy from_expr es1 :: map (from_expr BR) es2)
else from_expr fxy (CodegenThingol.eta_expand (const, es) i)
end;
(** user-defined syntax **)
(* theory data *)
type target_data = {
syntax_class: ((string * (string -> string option)) * stamp) Symtab.table,
syntax_inst: unit Symtab.table,
syntax_tyco: (itype pretty_syntax * stamp) Symtab.table,
syntax_const: (iterm pretty_syntax * stamp) Symtab.table
};
fun merge_target_data
({ syntax_class = syntax_class1, syntax_inst = syntax_inst1,
syntax_tyco = syntax_tyco1, syntax_const = syntax_const1 },
{ syntax_class = syntax_class2, syntax_inst = syntax_inst2,
syntax_tyco = syntax_tyco2, syntax_const = syntax_const2 }) =
{ syntax_class = Symtab.merge (eq_snd (op =)) (syntax_class1, syntax_class2),
syntax_inst = Symtab.merge (op =) (syntax_inst1, syntax_inst2),
syntax_tyco = Symtab.merge (eq_snd (op =)) (syntax_tyco1, syntax_tyco2),
syntax_const = Symtab.merge (eq_snd (op =)) (syntax_const1, syntax_const2) } : target_data;
structure CodegenSerializerData = TheoryDataFun
(struct
val name = "Pure/codegen_serializer";
type T = target_data Symtab.table;
val empty =
Symtab.empty
|> fold (fn target =>
Symtab.update (target,
{ syntax_class = Symtab.empty, syntax_inst = Symtab.empty,
syntax_tyco = Symtab.empty, syntax_const = Symtab.empty })
) ["SML", "Haskell"] : T;
val copy = I;
val extend = I;
fun merge _ = Symtab.join (K merge_target_data);
fun print _ _ = ();
end);
fun has_serialization f thy targets name =
forall (
is_some o (fn tab => Symtab.lookup tab name) o f o the
o (Symtab.lookup ((CodegenSerializerData.get) thy))
) targets;
val tyco_has_serialization = has_serialization #syntax_tyco;
val const_has_serialization = has_serialization #syntax_const;
fun serialize thy seri target cs =
let
val data = CodegenSerializerData.get thy;
val target_data =
(the oo Symtab.lookup) data target;
val syntax_class = #syntax_class target_data;
val syntax_inst = #syntax_inst target_data;
val syntax_tyco = #syntax_tyco target_data;
val syntax_const = #syntax_const target_data;
fun fun_of syntax = (Option.map fst oo Symtab.lookup) syntax;
in
seri (fun_of syntax_class, fun_of syntax_tyco, fun_of syntax_const)
(Symtab.keys syntax_class @ Symtab.keys syntax_inst
@ Symtab.keys syntax_tyco @ Symtab.keys syntax_const, cs)
end;
val _ = Context.add_setup CodegenSerializerData.init;
val (atomK, infixK, infixlK, infixrK) =
("target_atom", "infix", "infixl", "infixr");
val _ = OuterSyntax.add_keywords [atomK, infixK, infixlK, infixrK];
(* syntax parser *)
val str = setmp print_mode [] Pretty.str;
datatype 'a mixfix =
Arg of fixity
| Pretty of Pretty.T
| Quote of 'a;
fun fillin_mixfix fxy_this ms fxy_ctxt pr args =
let
fun fillin [] [] =
[]
| fillin (Arg fxy :: ms) (a :: args) =
pr fxy a :: fillin ms args
| fillin (Pretty p :: ms) args =
p :: fillin ms args
| fillin (Quote q :: ms) args =
pr BR q :: fillin ms args
| fillin [] _ =
error ("Inconsistent mixfix: too many arguments")
| fillin _ [] =
error ("Inconsistent mixfix: too less arguments");
in gen_brackify (eval_fxy fxy_this fxy_ctxt) (fillin ms args) end;
fun parse_infix (fixity as INFX (i, x)) s =
let
val l = case x of L => fixity
| _ => INFX (i, X);
val r = case x of R => fixity
| _ => INFX (i, X);
in
pair [Arg l, (Pretty o Pretty.brk) 1, (Pretty o str) s, (Pretty o Pretty.brk) 1, Arg r]
end;
fun parse_mixfix reader s ctxt =
let
fun sym s = Scan.lift ($$ s);
fun lift_reader ctxt s =
ctxt
|> reader s
|-> (fn x => pair (Quote x));
val sym_any = Scan.lift (Scan.one Symbol.not_eof);
val parse = Scan.repeat (
(sym "_" -- sym "_" >> K (Arg NOBR))
|| (sym "_" >> K (Arg BR))
|| (sym "/" |-- Scan.repeat (sym " ") >> (Pretty o Pretty.brk o length))
|| Scan.depend (fn ctxt => $$ "{" |-- $$ "*" |-- Scan.repeat1
( $$ "'" |-- Scan.one Symbol.not_eof
|| Scan.unless ($$ "*" -- $$ "}") (Scan.one Symbol.not_eof)) --|
$$ "*" --| $$ "}" >> (implode #> lift_reader ctxt #> swap))
|| (Scan.repeat1
( sym "'" |-- sym_any
|| Scan.unless (sym "_" || sym "?" || sym "/" || sym "{" |-- sym "*")
sym_any) >> (Pretty o str o implode)));
in case Scan.finite' Symbol.stopper parse (ctxt, Symbol.explode s)
of (p, (ctxt, [])) => (p, ctxt)
| _ => error ("Malformed mixfix annotation: " ^ quote s)
end;
fun parse_syntax num_args reader =
let
fun is_arg (Arg _) = true
| is_arg _ = false;
fun parse_nonatomic s ctxt =
case parse_mixfix reader s ctxt
of ([Pretty _], _) =>
error ("Mixfix contains just one pretty element; either declare as "
^ quote atomK ^ " or consider adding a break")
| x => x;
val parse = (
OuterParse.$$$ infixK |-- OuterParse.nat
>> (fn i => (parse_infix (INFX (i, X)), INFX (i, X)))
|| OuterParse.$$$ infixlK |-- OuterParse.nat
>> (fn i => (parse_infix (INFX (i, L)), INFX (i, L)))
|| OuterParse.$$$ infixrK |-- OuterParse.nat
>> (fn i => (parse_infix (INFX (i, R)), INFX (i, R)))
|| OuterParse.$$$ atomK |-- pair (parse_mixfix reader, NOBR)
|| pair (parse_nonatomic, BR)
) -- OuterParse.string >> (fn ((p, fxy), s) => (p s, fxy));
fun mk fixity mfx ctxt =
let
val i = (length o List.filter is_arg) mfx;
val _ = if i > num_args ctxt then error "Too many arguments in code syntax" else ();
in ((i, fillin_mixfix fixity mfx), ctxt) end;
in
parse
#-> (fn (mfx_reader, fixity) =>
pair (mfx_reader #-> (fn mfx => (mk fixity mfx)))
)
end;
(** generic abstract serializer **)
val nsp_module = CodegenNames.nsp_module;
val nsp_class = CodegenNames.nsp_class;
val nsp_tyco = CodegenNames.nsp_tyco;
val nsp_inst = CodegenNames.nsp_inst;
val nsp_fun = CodegenNames.nsp_fun;
val nsp_classop = CodegenNames.nsp_classop;
val nsp_dtco = CodegenNames.nsp_dtco;
val nsp_eval = CodegenNames.nsp_eval;
fun abstract_serializer (target, nspgrp) name_root (from_defs, from_module, validator, postproc)
postprocess (class_syntax, tyco_syntax, const_syntax)
(drop: string list, select) code =
let
fun from_module' resolv imps ((name_qual, name), defs) =
from_module resolv imps ((name_qual, name), defs)
|> postprocess (resolv name_qual);
in
code
|> debug_msg (fn _ => "dropping shadowed defintions...")
|> CodegenThingol.delete_garbage drop
|> debug_msg (fn _ => "projecting...")
|> (if is_some select then (CodegenThingol.project_module o the) select else I)
|> debug_msg (fn _ => "serializing...")
|> CodegenThingol.serialize (from_defs (class_syntax, tyco_syntax, const_syntax))
from_module' validator postproc nspgrp name_root
|> K ()
end;
fun abstract_validator keywords name =
let
fun replace_invalid c = (*FIXME*)
if Symbol.is_ascii_letter c orelse Symbol.is_ascii_digit c orelse c = "'"
andalso not (NameSpace.separator = c)
then c
else "_"
fun suffix_it name=
name
|> member (op =) keywords ? suffix "'"
|> (fn name' => if name = name' then name else suffix_it name')
in
name
|> translate_string replace_invalid
|> suffix_it
|> (fn name' => if name = name' then NONE else SOME name')
end;
fun write_file mkdir path p = (
if mkdir
then
File.mkdir (Path.dir path)
else ();
File.write path (Pretty.output p ^ "\n");
p
);
fun mk_module_file postprocess_module ext path name p =
let
val prfx = Path.dir path;
val name' = case name
of "" => Path.base path
| _ => (Path.ext ext o Path.unpack o implode o separate "/" o NameSpace.unpack) name;
in
p
|> write_file true (Path.append prfx name')
|> postprocess_module name
end;
fun parse_single_file serializer =
OuterParse.path
>> (fn path => serializer
(fn "" => write_file false path #> K NONE
| _ => SOME));
fun parse_multi_file postprocess_module ext serializer =
OuterParse.path
>> (fn path => (serializer o mk_module_file postprocess_module ext) path);
fun parse_internal serializer =
OuterParse.name
>> (fn "-" => serializer
(fn "" => (fn p => (use_text Context.ml_output false (Pretty.output p); NONE))
| _ => SOME)
| _ => Scan.fail ());
fun parse_stdout serializer =
OuterParse.name
>> (fn "_" => serializer
(fn "" => (fn p => (Pretty.writeln p; NONE))
| _ => SOME)
| _ => Scan.fail ());
fun constructive_fun (name, (eqs, ty)) =
let
val is_cons = CodegenNames.has_nsp CodegenNames.nsp_dtco;
fun check_eq (eq as (lhs, rhs)) =
if forall (CodegenThingol.is_pat is_cons) lhs
then SOME eq
else (warning ("In function " ^ quote name ^ ", throwing away one "
^ "non-executable function clause"); NONE)
in case map_filter check_eq eqs
of [] => error ("In function " ^ quote name ^ ", no "
^ "executable function clauses found")
| eqs => (name, (eqs, ty))
end;
fun make_ctxt names = (fold (fn name => Symtab.update_new (name, name)) names Symtab.empty,
Name.make_context names);
fun intro_ctxt names (namemap, namectxt) =
let
val (names', namectxt') = Name.variants names namectxt;
val namemap' = fold2 (curry Symtab.update) names names' namemap;
in (namemap', namectxt') end;
fun lookup_ctxt (namemap, _) name = case Symtab.lookup namemap name
of SOME name' => name'
| NONE => error ("invalid name in context: " ^ quote name);
(** generic list and string serializers **)
fun implode_list c_nil c_cons e =
let
fun dest_cons (IConst (c, _) `$ e1 `$ e2) =
if c = c_cons
then SOME (e1, e2)
else NONE
| dest_cons _ = NONE;
val (es, e') = CodegenThingol.unfoldr dest_cons e;
in case e'
of IConst (c, _) => if c = c_nil then SOME es else NONE
| _ => NONE
end;
fun implode_string mk_char mk_string es =
if forall (fn IChar _ => true | _ => false) es
then (SOME o str o mk_string o implode o map (fn IChar (c, _) => mk_char c)) es
else NONE;
fun pretty_ml_string c_nil c_cons mk_char mk_string target_implode =
let
fun pretty fxy pr [e] =
case implode_list c_nil c_cons e
of SOME es => (case implode_string mk_char mk_string es
of SOME p => p
| NONE => Pretty.block [str target_implode, Pretty.brk 1, pr BR e])
| NONE => Pretty.block [str target_implode, Pretty.brk 1, pr BR e]
in (1, pretty) end;
fun pretty_list c_nil c_cons mk_list mk_char_string (target_fxy, target_cons) =
let
fun default fxy pr e1 e2 =
brackify_infix (target_fxy, R) fxy [
pr (INFX (target_fxy, X)) e1,
str target_cons,
pr (INFX (target_fxy, R)) e2
];
fun pretty fxy pr [e1, e2] =
case Option.map (cons e1) (implode_list c_nil c_cons e2)
of SOME es =>
(case mk_char_string
of SOME (mk_char, mk_string) =>
(case implode_string mk_char mk_string es
of SOME p => p
| NONE => mk_list (map (pr NOBR) es))
| NONE => mk_list (map (pr NOBR) es))
| NONE => default fxy pr e1 e2;
in (2, pretty) end;
(** ML serializer **)
local
val reserved_ml' = [
"bool", "int", "list", "unit", "option", "true", "false", "not", "NONE", "SOME",
"o", "string", "char", "String", "Term"
];
fun ml_expr_seri (tyco_syntax, const_syntax) resolv =
let
val is_cons = CodegenNames.has_nsp CodegenNames.nsp_dtco;
fun first_upper s =
implode (nth_map 0 (Symbol.to_ascii_upper) (explode s));
fun ml_from_dictvar v =
first_upper v ^ "_";
val ml_from_label =
str o translate_string (fn "_" => "__" | "." => "_" | c => c)
o NameSpace.base o resolv;
fun ml_from_tyvar (v, []) =
str "()"
| ml_from_tyvar (v, sort) =
let
fun mk_class class =
str (prefix "'" v ^ " " ^ resolv class);
in
Pretty.block [
str "(",
(str o ml_from_dictvar) v,
str ":",
case sort
of [class] => mk_class class
| _ => Pretty.enum " *" "" "" (map mk_class sort),
str ")"
]
end;
fun ml_from_insts fxy lss =
let
fun from_label l =
Pretty.block [str "#",
if (is_some o Int.fromString) l then str l
else ml_from_label l
];
fun from_lookup fxy [] p =
p
| from_lookup fxy [l] p =
brackify fxy [
from_label l,
p
]
| from_lookup fxy ls p =
brackify fxy [
Pretty.enum " o" "(" ")" (map from_label ls),
p
];
fun from_inst fxy (Instance (inst, lss)) =
brackify fxy (
(str o resolv) inst
:: map (ml_from_insts BR) lss
)
| from_inst fxy (Context (classes, (v, ~1))) =
from_lookup BR classes
((str o ml_from_dictvar) v)
| from_inst fxy (Context (classes, (v, i))) =
from_lookup BR (classes @ [string_of_int (i+1)])
((str o ml_from_dictvar) v)
in case lss
of [] => str "()"
| [ls] => from_inst fxy ls
| lss => (Pretty.list "(" ")" o map (from_inst NOBR)) lss
end;
fun ml_from_tycoexpr fxy (tyco, tys) =
let
val tyco' = (str o resolv) tyco
in case map (ml_from_type BR) tys
of [] => tyco'
| [p] => Pretty.block [p, Pretty.brk 1, tyco']
| (ps as _::_) => Pretty.block [Pretty.list "(" ")" ps, Pretty.brk 1, tyco']
end
and ml_from_type fxy (tycoexpr as tyco `%% tys) =
(case tyco_syntax tyco
of NONE => ml_from_tycoexpr fxy (tyco, tys)
| SOME (i, pr) =>
if not (i = length tys)
then error ("Number of argument mismatch in customary serialization: "
^ (string_of_int o length) tys ^ " given, "
^ string_of_int i ^ " expected")
else pr fxy ml_from_type tys)
| ml_from_type fxy (t1 `-> t2) =
let
val brackify = gen_brackify
(case fxy
of BR => false
| _ => eval_fxy (INFX (1, R)) fxy) o Pretty.breaks;
in
brackify [
ml_from_type (INFX (1, X)) t1,
str "->",
ml_from_type (INFX (1, R)) t2
]
end
| ml_from_type fxy (ITyVar v) =
str ("'" ^ v);
fun ml_from_expr var_ctxt fxy (e as IConst x) =
ml_from_app var_ctxt fxy (x, [])
| ml_from_expr var_ctxt fxy (IVar v) =
str (lookup_ctxt var_ctxt v)
| ml_from_expr var_ctxt fxy (e as e1 `$ e2) =
(case CodegenThingol.unfold_const_app e
of SOME x => ml_from_app var_ctxt fxy x
| NONE =>
brackify fxy [
ml_from_expr var_ctxt NOBR e1,
ml_from_expr var_ctxt BR e2
])
| ml_from_expr var_ctxt fxy (e as _ `|-> _) =
let
val (es, e') = CodegenThingol.unfold_abs e;
val vs = fold CodegenThingol.add_varnames (map fst es) [];
val var_ctxt' = intro_ctxt vs var_ctxt;
fun mk_abs (e, ty) = (Pretty.block o Pretty.breaks) [
str "fn",
ml_from_expr var_ctxt' NOBR e,
str "=>"
];
in brackify BR (map mk_abs es @ [ml_from_expr var_ctxt' NOBR e']) end
| ml_from_expr var_ctxt fxy (INum (n, _)) =
brackify BR [
(str o IntInf.toString) n,
str ":",
str "IntInf.int"
]
| ml_from_expr var_ctxt _ (IChar (c, _)) =
(str o prefix "#" o quote)
(let val i = ord c
in if i < 32
then prefix "\\" (string_of_int i)
else c
end)
| ml_from_expr var_ctxt fxy (e as ICase ((_, [_]), _)) =
let
val (ves, be) = CodegenThingol.unfold_let e;
fun mk_val ((ve, vty), se) var_ctxt =
let
val vs = CodegenThingol.add_varnames ve [];
val var_ctxt' = intro_ctxt vs var_ctxt;
in
(Pretty.block [
(Pretty.block o Pretty.breaks) [
str "val",
ml_from_expr var_ctxt' NOBR ve,
str "=",
ml_from_expr var_ctxt NOBR se
],
str ";"
], var_ctxt')
end
val (binds, var_ctxt') = fold_map mk_val ves var_ctxt;
in Pretty.chunks [
[str ("let"), Pretty.fbrk, binds |> Pretty.chunks] |> Pretty.block,
[str ("in"), Pretty.fbrk, ml_from_expr var_ctxt' NOBR be] |> Pretty.block,
str ("end")
] end
| ml_from_expr var_ctxt fxy (ICase (((de, dty), bse::bses), _)) =
let
fun mk_clause definer (se, be) =
let
val vs = CodegenThingol.add_varnames se [];
val var_ctxt' = intro_ctxt vs var_ctxt;
in
(Pretty.block o Pretty.breaks) [
str definer,
ml_from_expr var_ctxt' NOBR se,
str "=>",
ml_from_expr var_ctxt' NOBR be
]
end
in brackify fxy (
str "(case"
:: ml_from_expr var_ctxt NOBR de
:: mk_clause "of" bse
:: map (mk_clause "|") bses
@ [str ")"]
) end
| ml_from_expr var_ctxt _ e =
error ("Dubious expression: " ^ (Pretty.output o CodegenThingol.pretty_iterm) e)
and ml_mk_app var_ctxt f es =
if is_cons f andalso length es > 1 then
[(str o resolv) f, Pretty.enum "," "(" ")" (map (ml_from_expr var_ctxt BR) es)]
else
(str o resolv) f :: map (ml_from_expr var_ctxt BR) es
and ml_from_app var_ctxt fxy (app_expr as ((c, (lss, ty)), es)) =
case if is_cons c then [] else (map (ml_from_insts BR) o filter_out null) lss
of [] =>
from_app (ml_mk_app var_ctxt) (ml_from_expr var_ctxt) const_syntax fxy app_expr
| lss =>
if (is_none o const_syntax) c then
brackify fxy (
(str o resolv) c
:: (lss
@ map (ml_from_expr var_ctxt BR) es)
)
else error ("Can't apply user defined serialization for function expecting dicitonaries: " ^ quote c)
in (ml_from_dictvar, ml_from_label, ml_from_tyvar, ml_from_insts,
ml_from_tycoexpr, ml_from_type, ml_from_expr) end;
fun ml_fun_datatype init_ctxt (tyco_syntax, const_syntax) resolv =
let
val is_cons = CodegenNames.has_nsp CodegenNames.nsp_dtco;
val (ml_from_dictvar, ml_from_label, ml_from_tyvar, ml_from_insts, ml_from_tycoexpr, ml_from_type, ml_from_expr) =
ml_expr_seri (tyco_syntax, const_syntax) resolv;
fun chunk_defs ps =
let
val (p_init, p_last) = split_last ps
in
Pretty.chunks (p_init @ [Pretty.block ([p_last, str ";"])])
end;
fun eta_expand_poly_fun (funn as (_, (_::_, _))) =
funn
| eta_expand_poly_fun (funn as (eqs, tysm as (_, ty))) =
let
fun no_eta (_::_, _) = I
| no_eta (_, _ `|-> _) = I
| no_eta ([], e) = K false;
fun has_tyvars (_ `%% tys) =
exists has_tyvars tys
| has_tyvars (ITyVar _) =
true
| has_tyvars (ty1 `-> ty2) =
has_tyvars ty1 orelse has_tyvars ty2;
in if (null o fst o CodegenThingol.unfold_fun) ty
orelse (not o has_tyvars) ty
orelse fold no_eta eqs true
then funn
else (map (fn ([], rhs) => ([IVar "x"], rhs `$ IVar "x")) eqs, tysm)
end;
fun ml_from_funs (defs as def::defs_tl) =
let
fun mk_definer [] [] = "val"
| mk_definer (_::_) _ = "fun"
| mk_definer [] vs = if (null o filter_out (null o snd)) vs then "val" else "fun";
fun check_args (_, ((pats, _)::_, (vs, _))) NONE =
SOME (mk_definer pats vs)
| check_args (_, ((pats, _)::_, (vs, _))) (SOME definer) =
if mk_definer pats vs = definer
then SOME definer
else error ("Mixing simultaneous vals and funs not implemented");
fun mk_fun definer (name, (eqs as eq::eq_tl, (raw_vs, ty))) =
let
val vs = filter_out (null o snd) raw_vs;
val shift = if null eq_tl then I else
map (Pretty.block o single o Pretty.block o single);
fun mk_eq definer (pats, expr) =
let
val consts = map_filter
(fn c => if (is_some o const_syntax) c
then NONE else (SOME o NameSpace.base o resolv) c) (fold CodegenThingol.add_constnames (expr :: pats) []);
val vars = fold CodegenThingol.add_unbound_varnames (expr :: pats) [];
val var_ctxt = init_ctxt
|> intro_ctxt consts
|> intro_ctxt vars;
in
(Pretty.block o Pretty.breaks) (
[str definer, (str o resolv) name]
@ (if null pats andalso null vs
andalso not (ty = ITyVar "_")(*for evaluation*)
then [str ":", ml_from_type NOBR ty]
else
map ml_from_tyvar vs
@ map (ml_from_expr var_ctxt BR) pats)
@ [str "=", ml_from_expr var_ctxt NOBR expr]
)
end
in
(Pretty.block o Pretty.fbreaks o shift) (
mk_eq definer eq
:: map (mk_eq "|") eq_tl
)
end;
val def' :: defs' = map (apsnd eta_expand_poly_fun o constructive_fun) defs
in
chunk_defs (
(mk_fun (the (fold check_args defs NONE))) def'
:: map (mk_fun "and") defs'
)
end;
fun ml_from_datatypes (defs as (def::defs_tl)) =
let
fun mk_cons (co, []) =
str (resolv co)
| mk_cons (co, tys) =
Pretty.block [
str (resolv co),
str " of",
Pretty.brk 1,
Pretty.enum " *" "" "" (map (ml_from_type (INFX (2, L))) tys)
]
fun mk_datatype definer (t, (vs, cs)) =
(Pretty.block o Pretty.breaks) (
str definer
:: ml_from_tycoexpr NOBR (t, map (ITyVar o fst) vs)
:: str "="
:: separate (str "|") (map mk_cons cs)
)
in
chunk_defs (
mk_datatype "datatype" def
:: map (mk_datatype "and") defs_tl
)
end;
in (ml_from_funs, ml_from_datatypes) end;
fun ml_from_defs init_ctxt
(_, tyco_syntax, const_syntax) resolver prefix defs =
let
val resolv = resolver prefix;
val (ml_from_dictvar, ml_from_label, ml_from_tyvar, ml_from_insts, ml_from_tycoexpr, ml_from_type, ml_from_expr) =
ml_expr_seri (tyco_syntax, const_syntax) resolv;
val (ml_from_funs, ml_from_datatypes) =
ml_fun_datatype init_ctxt (tyco_syntax, const_syntax) resolv;
val filter_datatype =
map_filter
(fn (name, CodegenThingol.Datatype info) => SOME (name, info)
| (name, CodegenThingol.Datatypecons _) => NONE
| (name, def) => error ("Datatype block containing illegal def: "
^ (Pretty.output o CodegenThingol.pretty_def) def));
fun filter_class defs =
case map_filter
(fn (name, CodegenThingol.Class info) => SOME (name, info)
| (name, CodegenThingol.Classmember _) => NONE
| (name, def) => error ("Class block containing illegal def: "
^ (Pretty.output o CodegenThingol.pretty_def) def)) defs
of [class] => class
| _ => error ("Class block without class: " ^ (commas o map (quote o fst)) defs)
fun ml_from_class (name, (supclasses, (v, membrs))) =
let
val w = ml_from_dictvar v;
fun from_supclass class =
Pretty.block [
ml_from_label class,
str ":",
Pretty.brk 1,
str ("'" ^ v),
Pretty.brk 1,
(str o resolv) class
];
fun from_membr (m, ty) =
Pretty.block [
ml_from_label m,
str ":",
Pretty.brk 1,
ml_from_type NOBR ty
];
fun from_membr_fun (m, _) =
(Pretty.block o Pretty.breaks) [
str "fun",
(str o resolv) m,
Pretty.enclose "(" ")" [str (w ^ ":'" ^ v ^ " " ^ resolv name)],
str "=",
Pretty.block [str "#", ml_from_label m],
str (w ^ ";")
];
in
Pretty.chunks (
(Pretty.block o Pretty.breaks) [
str "type",
str ("'" ^ v),
(str o resolv) name,
str "=",
Pretty.enum "," "{" "};" (
map from_supclass supclasses @ map from_membr membrs
)
]
:: map from_membr_fun membrs)
end
fun ml_from_def (name, CodegenThingol.Typesyn (vs, ty)) =
(map (fn (vname, []) => () | _ =>
error "Can't serialize sort constrained type declaration to ML") vs;
Pretty.block [
str "type ",
ml_from_tycoexpr NOBR (name, map (ITyVar o fst) vs),
str " =",
Pretty.brk 1,
ml_from_type NOBR ty,
str ";"
]
) |> SOME
| ml_from_def (name, CodegenThingol.Classinst ((class, (tyco, arity)), (suparities, memdefs))) =
let
val definer = if null arity then "val" else "fun"
fun from_supclass (supclass, (supinst, lss)) =
(Pretty.block o Pretty.breaks) [
ml_from_label supclass,
str "=",
ml_from_insts NOBR [Instance (supinst, lss)]
];
fun from_memdef (m, e) =
let
val consts = map_filter
(fn c => if (is_some o const_syntax) c
then NONE else (SOME o NameSpace.base o resolv) c) (CodegenThingol.add_constnames e []);
val var_ctxt = init_ctxt
|> intro_ctxt consts;
in
(Pretty.block o Pretty.breaks) [
ml_from_label m,
str "=",
ml_from_expr var_ctxt NOBR e
]
end;
fun mk_corp rhs =
(Pretty.block o Pretty.breaks) (
str definer
:: (str o resolv) name
:: map ml_from_tyvar arity
@ [str "=", rhs]
);
fun mk_memdefs supclassexprs memdefs =
(mk_corp o Pretty.block o Pretty.breaks) [
Pretty.enum "," "{" "}" (supclassexprs @ memdefs),
str ":",
ml_from_tycoexpr NOBR (class, [tyco `%% map (ITyVar o fst) arity])
];
in
mk_memdefs (map from_supclass suparities) (map from_memdef memdefs) |> SOME
end
| ml_from_def (name, def) = error ("Illegal definition for " ^ quote name ^ ": " ^
(Pretty.output o CodegenThingol.pretty_def) def);
in case defs
of (_, CodegenThingol.Fun _)::_ => ((*writeln "FUN";*) (SOME o ml_from_funs o map (fn (name, CodegenThingol.Fun info) => (name, info))) defs)
| (_, CodegenThingol.Datatypecons _)::_ => ((*writeln "DTCO";*) (SOME o ml_from_datatypes o filter_datatype) defs)
| (_, CodegenThingol.Datatype _)::_ => ((*writeln "DT";*) (SOME o ml_from_datatypes o filter_datatype) defs)
| (_, CodegenThingol.Class _)::_ => (SOME o ml_from_class o filter_class) defs
| (_, CodegenThingol.Classmember _)::_ => (SOME o ml_from_class o filter_class) defs
| [def] => ml_from_def def
| defs => error ("Illegal mutual dependencies: " ^ (commas o map fst) defs)
end;
fun ml_serializer root_name target nspgrp =
let
fun ml_from_module resolv _ ((_, name), ps) =
Pretty.chunks ([
str ("structure " ^ name ^ " = "),
str "struct",
str ""
] @ separate (str "") ps @ [
str "",
str ("end; (* struct " ^ name ^ " *)")
]);
fun postproc (shallow, n) =
let
fun ch_first f = String.implode o nth_map 0 f o String.explode;
in if shallow = CodegenNames.nsp_dtco
then ch_first Char.toUpper n
else n
end;
in abstract_serializer (target, nspgrp)
root_name (ml_from_defs (make_ctxt ((ThmDatabase.ml_reserved @ reserved_ml'))), ml_from_module,
abstract_validator (ThmDatabase.ml_reserved @ reserved_ml'), postproc) end;
in
val ml_fun_datatype = fn thy =>
let
val target = "SML";
val data = CodegenSerializerData.get thy;
val target_data =
(the oo Symtab.lookup) data target;
val syntax_tyco = #syntax_tyco target_data;
val syntax_const = #syntax_const target_data;
fun fun_of syntax = (Option.map fst oo Symtab.lookup) syntax;
in ml_fun_datatype (make_ctxt (ThmDatabase.ml_reserved @ reserved_ml')) (fun_of syntax_tyco, fun_of syntax_const) end;
fun ml_from_thingol target =
let
val serializer = ml_serializer "ROOT" target [[nsp_module], [nsp_class, nsp_tyco],
[nsp_fun, nsp_dtco, nsp_class, nsp_classop, nsp_inst]]
val parse_multi =
OuterParse.name
#-> (fn "dir" =>
parse_multi_file
(K o SOME o str o suffix ";" o prefix "val _ = use "
o quote o suffix ".ML" o translate_string (fn "." => "/" | s => s)) "ML" serializer
| _ => Scan.fail ());
in
parse_multi
|| parse_internal serializer
|| parse_stdout serializer
|| parse_single_file serializer
end;
val eval_verbose = ref false;
fun eval_term thy ((ref_name, reff), e) code =
let
val (val_name, code') = CodegenThingol.add_eval_def (nsp_eval, e) code;
val struct_name = "EVAL";
fun output p = if !eval_verbose then (Pretty.writeln p; Pretty.output p)
else Pretty.output p;
val target = "SML";
val data = CodegenSerializerData.get thy;
val target_data =
(the oo Symtab.lookup) data target;
val syntax_tyco = #syntax_tyco target_data;
val syntax_const = #syntax_const target_data;
fun fun_of syntax = (Option.map fst oo Symtab.lookup) syntax;
val serializer = ml_serializer struct_name "SML" [[nsp_module], [nsp_class, nsp_tyco],
[nsp_fun, nsp_dtco, nsp_class, nsp_classop, nsp_inst], [nsp_eval]]
(fn "" => (fn p => (use_text Context.ml_output (!eval_verbose) (output p); NONE))
| _ => SOME) (K NONE, fun_of syntax_tyco, fun_of syntax_const)
((Symtab.keys (#syntax_tyco target_data) @ Symtab.keys (#syntax_const target_data)), SOME [NameSpace.pack [nsp_eval, val_name]]);
val _ = serializer code';
val val_name_struct = NameSpace.append struct_name val_name;
val _ = reff := NONE;
val _ = use_text Context.ml_output (!eval_verbose) ("val _ = (" ^ ref_name ^ " := SOME (" ^ val_name_struct ^ "))");
in case !reff
of NONE => error ("Could not retrieve value of ML reference " ^ quote ref_name
^ " (reference probably has been shadowed)")
| SOME value => value
end;
structure NameMangler = NameManglerFun (
type ctxt = string list;
type src = string;
val ord = string_ord;
fun mk reserved_ml (name, i) =
(Symbol.alphanum o NameSpace.base) name ^ replicate_string i "'";
fun is_valid (reserved_ml : string list) = not o member (op =) reserved_ml;
fun maybe_unique _ _ = NONE;
fun re_mangle _ dst = error ("No such definition name: " ^ quote dst);
);
fun mk_flat_ml_resolver names =
let
val mangler =
NameMangler.empty
|> fold_map (NameMangler.declare (ThmDatabase.ml_reserved @ reserved_ml')) names
|-> (fn _ => I)
in NameMangler.get (ThmDatabase.ml_reserved @ reserved_ml') mangler end;
end; (* local *)
(** haskell serializer **)
local
fun hs_from_defs init_ctxt (class_syntax, tyco_syntax, const_syntax)
resolver prefix defs =
let
val is_cons = CodegenNames.has_nsp CodegenNames.nsp_dtco;
val resolv = resolver "";
val resolv_here = resolver prefix;
fun hs_from_class cls = case class_syntax cls
of NONE => resolv cls
| SOME (cls, _) => cls;
fun hs_from_classop_name cls clsop = case class_syntax cls
of NONE => NameSpace.base clsop
| SOME (_, classop_syntax) => case classop_syntax clsop
of NONE => NameSpace.base clsop
| SOME clsop => clsop;
fun hs_from_typparms tyvar_ctxt vs =
let
fun from_typparms [] = str ""
| from_typparms vs =
vs
|> map (fn (v, cls) => str
(hs_from_class cls ^ " " ^ lookup_ctxt tyvar_ctxt v))
|> Pretty.enum "," "(" ")"
|> (fn p => Pretty.block [p, str " => "])
in
vs
|> maps (fn (v, sort) => map (pair v) sort)
|> from_typparms
end;
fun hs_from_tycoexpr tyvar_ctxt fxy (tyco, tys) =
brackify fxy (str tyco :: map (hs_from_type tyvar_ctxt BR) tys)
and hs_from_type tyvar_ctxt fxy (tycoexpr as tyco `%% tys) =
(case tyco_syntax tyco
of NONE =>
hs_from_tycoexpr tyvar_ctxt fxy (resolv tyco, tys)
| SOME (i, pr) =>
if not (i = length tys)
then error ("Number of argument mismatch in customary serialization: "
^ (string_of_int o length) tys ^ " given, "
^ string_of_int i ^ " expected")
else pr fxy (hs_from_type tyvar_ctxt) tys)
| hs_from_type tyvar_ctxt fxy (t1 `-> t2) =
brackify_infix (1, R) fxy [
hs_from_type tyvar_ctxt (INFX (1, X)) t1,
str "->",
hs_from_type tyvar_ctxt (INFX (1, R)) t2
]
| hs_from_type tyvar_ctxt fxy (ITyVar v) =
str (lookup_ctxt tyvar_ctxt v);
fun hs_from_typparms_tycoexpr tyvar_ctxt (vs, tycoexpr) =
Pretty.block [hs_from_typparms tyvar_ctxt vs, hs_from_tycoexpr tyvar_ctxt NOBR tycoexpr]
fun hs_from_typparms_type tyvar_ctxt (vs, ty) =
Pretty.block [hs_from_typparms tyvar_ctxt vs, hs_from_type tyvar_ctxt NOBR ty]
fun hs_from_expr var_ctxt fxy (e as IConst x) =
hs_from_app var_ctxt fxy (x, [])
| hs_from_expr var_ctxt fxy (e as (e1 `$ e2)) =
(case CodegenThingol.unfold_const_app e
of SOME x => hs_from_app var_ctxt fxy x
| _ =>
brackify fxy [
hs_from_expr var_ctxt NOBR e1,
hs_from_expr var_ctxt BR e2
])
| hs_from_expr var_ctxt fxy (IVar v) =
str (lookup_ctxt var_ctxt v)
| hs_from_expr var_ctxt fxy (e as _ `|-> _) =
let
val (es, e) = CodegenThingol.unfold_abs e;
val vs = fold CodegenThingol.add_varnames (map fst es) [];
val var_ctxt' = intro_ctxt vs var_ctxt;
in
brackify BR (
str "\\"
:: map (hs_from_expr var_ctxt' BR o fst) es @ [
str "->",
hs_from_expr var_ctxt' NOBR e
])
end
| hs_from_expr var_ctxt fxy (INum (n, _)) =
if n > 0 then
(str o IntInf.toString) n
else
brackify BR [(str o Library.prefix "-" o IntInf.toString o IntInf.~) n]
| hs_from_expr var_ctxt fxy (IChar (c, _)) =
(str o enclose "'" "'")
(let val i = (Char.ord o the o Char.fromString) c
in if i < 32
then Library.prefix "\\" (string_of_int i)
else c
end)
| hs_from_expr var_ctxt fxy (e as ICase ((_, [_]), _)) =
let
val (ps, body) = CodegenThingol.unfold_let e;
fun mk_bind ((p, _), e) var_ctxt =
let
val vs = CodegenThingol.add_varnames p [];
val var_ctxt' = intro_ctxt vs var_ctxt;
in
((Pretty.block o Pretty.breaks) [
hs_from_expr var_ctxt' BR p,
str "=",
hs_from_expr var_ctxt NOBR e
], var_ctxt')
end;
val (binds, var_ctxt') = fold_map mk_bind ps var_ctxt;
in Pretty.chunks [
[str ("let"), Pretty.fbrk, binds |> Pretty.chunks] |> Pretty.block,
[str ("in "), hs_from_expr var_ctxt' NOBR body] |> Pretty.block
] end
| hs_from_expr var_ctxt fxy (ICase (((de, _), bses), _)) =
let
fun mk_clause (se, be) =
let
val vs = CodegenThingol.add_varnames se [];
val var_ctxt' = intro_ctxt vs var_ctxt;
in
(Pretty.block o Pretty.breaks) [
hs_from_expr var_ctxt' NOBR se,
str "->",
hs_from_expr var_ctxt' NOBR be
]
end
in Pretty.block [
str "case",
Pretty.brk 1,
hs_from_expr var_ctxt NOBR de,
Pretty.brk 1,
str "of",
Pretty.fbrk,
(Pretty.chunks o map mk_clause) bses
] end
and hs_mk_app var_ctxt c es =
(str o resolv) c :: map (hs_from_expr var_ctxt BR) es
and hs_from_app var_ctxt fxy =
from_app (hs_mk_app var_ctxt) (hs_from_expr var_ctxt) const_syntax fxy
fun hs_from_funeqs (def as (name, _)) =
let
fun from_eq (args, rhs) =
let
val consts = map_filter
(fn c => if (is_some o const_syntax) c
then NONE else (SOME o NameSpace.base o resolv) c) (fold CodegenThingol.add_constnames (rhs :: args) []);
val vars = fold CodegenThingol.add_unbound_varnames (rhs :: args) [];
val var_ctxt = init_ctxt
|> intro_ctxt consts
|> intro_ctxt vars;
in
Pretty.block [
(str o resolv_here) name,
Pretty.block (map (fn p => Pretty.block [Pretty.brk 1, hs_from_expr var_ctxt BR p]) args),
Pretty.brk 1,
str ("="),
Pretty.brk 1,
hs_from_expr var_ctxt NOBR rhs
]
end
in Pretty.chunks ((map from_eq o fst o snd o constructive_fun) def) end;
fun hs_from_def (name, CodegenThingol.Fun (def as (_, (vs, ty)))) =
let
val tyvar_ctxt = intro_ctxt (map fst vs) init_ctxt;
val body = hs_from_funeqs (name, def);
in
Pretty.chunks [
Pretty.block [
(str o suffix " ::" o resolv_here) name,
Pretty.brk 1,
hs_from_typparms_type tyvar_ctxt (vs, ty)
],
body
] |> SOME
end
| hs_from_def (name, CodegenThingol.Typesyn (vs, ty)) =
let
val tyvar_ctxt = intro_ctxt (map fst vs) init_ctxt;
in
(Pretty.block o Pretty.breaks) [
str "type",
hs_from_typparms_tycoexpr tyvar_ctxt (vs, (resolv_here name, map (ITyVar o fst) vs)),
str "=",
hs_from_typparms_type tyvar_ctxt ([], ty)
] |> SOME
end
| hs_from_def (name, CodegenThingol.Datatype (vs, [(co, [ty])])) =
let
val tyvar_ctxt = intro_ctxt (map fst vs) init_ctxt;
in
(Pretty.block o Pretty.breaks) [
str "newtype",
hs_from_typparms_tycoexpr tyvar_ctxt (vs, (resolv_here name, map (ITyVar o fst) vs)),
str "=",
(str o resolv_here) co,
hs_from_type tyvar_ctxt BR ty
] |> SOME
end
| hs_from_def (name, CodegenThingol.Datatype (vs, constrs)) =
let
val tyvar_ctxt = intro_ctxt (map fst vs) init_ctxt;
fun mk_cons (co, tys) =
(Pretty.block o Pretty.breaks) (
(str o resolv_here) co
:: map (hs_from_type tyvar_ctxt BR) tys
)
in
(Pretty.block o Pretty.breaks) [
str "data",
hs_from_typparms_tycoexpr tyvar_ctxt (vs, (resolv_here name, map (ITyVar o fst) vs)),
str "=",
Pretty.block (separate (Pretty.block [Pretty.brk 1, str "| "]) (map mk_cons constrs))
]
end |> SOME
| hs_from_def (_, CodegenThingol.Datatypecons _) =
NONE
| hs_from_def (name, CodegenThingol.Class (supclasss, (v, membrs))) =
let
val tyvar_ctxt = intro_ctxt [v] init_ctxt;
fun mk_member (m, ty) =
Pretty.block [
str (resolv_here m ^ " ::"),
Pretty.brk 1,
hs_from_type tyvar_ctxt NOBR ty
]
in
Pretty.block [
str "class ",
hs_from_typparms tyvar_ctxt [(v, supclasss)],
str (resolv_here name ^ " " ^ v),
str " where",
Pretty.fbrk,
Pretty.chunks (map mk_member membrs)
] |> SOME
end
| hs_from_def (_, CodegenThingol.Classmember _) =
NONE
| hs_from_def (_, CodegenThingol.Classinst ((clsname, (tyco, vs)), (_, memdefs))) =
let
val tyvar_ctxt = intro_ctxt (map fst vs) init_ctxt;
in
Pretty.block [
str "instance ",
hs_from_typparms tyvar_ctxt vs,
str (hs_from_class clsname ^ " "),
hs_from_type tyvar_ctxt BR (tyco `%% map (ITyVar o fst) vs),
str " where",
Pretty.fbrk,
Pretty.chunks (map (fn (m, e) =>
let
val consts = map_filter
(fn c => if (is_some o const_syntax) c
then NONE else (SOME o NameSpace.base o resolv) c) (CodegenThingol.add_constnames e []);
val var_ctxt = init_ctxt
|> intro_ctxt consts;
in
(Pretty.block o Pretty.breaks) [
(str o hs_from_classop_name clsname) m,
str "=",
hs_from_expr var_ctxt NOBR e
]
end
) memdefs)
] |> SOME
end
in
case map_filter (fn (name, def) => hs_from_def (name, def)) defs
of [] => NONE
| l => (SOME o Pretty.chunks o separate (str "")) l
end;
in
fun hs_from_thingol target =
let
val reserved_hs = [
"hiding", "deriving", "where", "case", "of", "infix", "infixl", "infixr",
"import", "default", "forall", "let", "in", "class", "qualified", "data",
"newtype", "instance", "if", "then", "else", "type", "as", "do", "module"
] @ [
"Bool", "Integer", "Maybe", "True", "False", "Nothing", "Just", "not", "negate",
"String", "Char"
];
fun hs_from_module resolv imps ((_, name), ps) =
(Pretty.chunks) (
str ("module " ^ name ^ " where")
:: map (str o prefix "import qualified ") imps @ (
str ""
:: separate (str "") ps
));
fun postproc (shallow, n) =
let
fun ch_first f = String.implode o nth_map 0 f o String.explode;
in if member (op =) [nsp_module, nsp_class, nsp_tyco, nsp_dtco] shallow
then ch_first Char.toUpper n
else ch_first Char.toLower n
end;
val serializer = abstract_serializer (target, [[nsp_module],
[nsp_class], [nsp_tyco], [nsp_fun, nsp_classop], [nsp_dtco], [nsp_inst]])
"Main" (hs_from_defs (make_ctxt reserved_hs), hs_from_module, abstract_validator reserved_hs, postproc);
in
parse_multi_file ((K o K) NONE) "hs" serializer
end;
end; (* local *)
(** lookup table **)
val serializers =
Symtab.empty
|> fold (fn (name, f) => Symtab.update_new (name, f name))
[("SML", ml_from_thingol), ("Haskell", hs_from_thingol)];
fun check_serializer target =
case Symtab.lookup serializers target
of SOME seri => ()
| NONE => error ("Unknown code target language: " ^ quote target);
fun parse_serializer target =
case Symtab.lookup serializers target
of SOME seri => seri >> (fn seri' => fn thy => serialize thy seri' target)
| NONE => Scan.fail_with (fn _ => "Unknown code target language: " ^ quote target) ();
fun map_target_data target f =
let
val _ = check_serializer target;
in
CodegenSerializerData.map (
(Symtab.map_entry target (fn { syntax_class, syntax_inst, syntax_tyco, syntax_const } =>
let
val (syntax_class, syntax_inst, syntax_tyco, syntax_const) =
f (syntax_class, syntax_inst, syntax_tyco, syntax_const)
in {
syntax_class = syntax_class,
syntax_inst = syntax_inst,
syntax_tyco = syntax_tyco,
syntax_const = syntax_const } : target_data
end
))
)
end;
(** target syntax interfaces **)
local
fun gen_add_syntax_class prep_class prep_const target raw_class (syntax, raw_ops) thy =
let
val cls = prep_class thy raw_class
val class = CodegenNames.class thy cls;
fun mk_classop (c, _) = case AxClass.class_of_param thy c
of SOME class' => if cls = class' then c
else error ("Not a class operation for class " ^ quote class ^ ": " ^ quote c)
| NONE => error ("Not a class operation: " ^ quote c)
val ops = (map o apfst) (mk_classop o prep_const thy) raw_ops;
val syntax_ops = AList.lookup (op =) ops;
in
thy
|> map_target_data target (fn (syntax_class, syntax_inst, syntax_tyco, syntax_const) =>
(syntax_class |> Symtab.update (class,
((syntax, syntax_ops), stamp ())),
syntax_inst, syntax_tyco, syntax_const))
end;
fun gen_add_syntax_inst prep_class prep_tyco target (raw_tyco, raw_class) thy =
let
val inst = CodegenNames.instance thy (prep_class thy raw_class, prep_tyco thy raw_tyco);
in
thy
|> map_target_data target (fn (syntax_class, syntax_inst, syntax_tyco, syntax_const) =>
(syntax_class, syntax_inst |> Symtab.update (inst, ()),
syntax_tyco, syntax_const))
end;
fun gen_add_syntax_tyco prep_tyco raw_tyco target syntax thy =
let
val tyco = (CodegenNames.tyco thy o prep_tyco thy) raw_tyco;
in
thy
|> map_target_data target (fn (syntax_class, syntax_inst, syntax_tyco, syntax_const) =>
(syntax_class, syntax_inst, syntax_tyco
|> Symtab.update (tyco, (syntax, stamp ())), syntax_const))
end;
fun gen_add_syntax_const prep_const raw_c target syntax thy =
let
val c' = prep_const thy raw_c;
val c'' = CodegenNames.const thy c';
in
thy
|> map_target_data target (fn (syntax_class, syntax_inst, syntax_tyco, syntax_const) =>
(syntax_class, syntax_inst, syntax_tyco, syntax_const
|> Symtab.update (c'', (syntax, stamp ()))))
end;
fun read_type thy raw_tyco =
let
val tyco = Sign.intern_type thy raw_tyco;
val _ = if Sign.declared_tyname thy tyco then ()
else error ("No such type constructor: " ^ quote raw_tyco);
in tyco end;
fun idfs_of_const_names thy cs =
let
val cs' = AList.make (fn c => Sign.the_const_type thy c) cs;
val cs'' = map (CodegenConsts.norm_of_typ thy) cs';
in AList.make (CodegenNames.const thy) cs'' end;
fun read_quote reader consts_of target get_init gen raw_it thy =
let
val it = reader thy raw_it;
val cs = consts_of thy it;
in
gen thy cs target (get_init thy) [it]
|> (fn [it'] => (it', thy))
end;
fun parse_quote num_of reader consts_of target get_init gen adder =
parse_syntax num_of
(read_quote reader consts_of target get_init gen)
#-> (fn modifier => pair (modifier #-> adder target));
in
val add_syntax_class = gen_add_syntax_class ClassPackage.read_class CodegenConsts.read_const;
val add_syntax_inst = gen_add_syntax_inst ClassPackage.read_class read_type;
fun parse_syntax_tyco generate target raw_tyco =
let
fun intern thy = read_type thy raw_tyco;
fun num_of thy = Sign.arity_number thy (intern thy);
fun idf_of thy = CodegenNames.tyco thy (intern thy);
fun read_typ thy =
Sign.read_typ (thy, K NONE);
in
parse_quote num_of read_typ ((K o K) ([], [])) target idf_of generate
(gen_add_syntax_tyco read_type raw_tyco)
end;
fun parse_syntax_const generate target raw_const =
let
fun intern thy = CodegenConsts.read_const thy raw_const;
fun num_of thy = (length o fst o strip_type o Sign.the_const_type thy o fst o intern) thy;
fun idf_of thy = (CodegenNames.const thy o intern) thy;
in
parse_quote num_of Sign.read_term CodegenConsts.consts_of target idf_of generate
(gen_add_syntax_const CodegenConsts.read_const raw_const)
end;
fun add_pretty_list target nill cons mk_list mk_char_string target_cons thy =
let
val [(_, nil''), (cons', cons'')] = idfs_of_const_names thy [nill, cons];
val pr = pretty_list nil'' cons'' mk_list mk_char_string target_cons;
in
thy
|> gen_add_syntax_const (K I) cons' target pr
end;
fun add_pretty_ml_string target nill cons str mk_char mk_string target_implode thy =
let
val [(_, nil''), (_, cons''), (str', _)] = idfs_of_const_names thy [nill, cons, str];
val pr = pretty_ml_string nil'' cons'' mk_char mk_string target_implode;
in
thy
|> gen_add_syntax_const (K I) str' target pr
end;
fun add_undefined target undef target_undefined thy =
let
val [(undef', _)] = idfs_of_const_names thy [undef];
fun pretty _ _ _ = str target_undefined;
in
thy
|> gen_add_syntax_const (K I) undef' target (~1, pretty)
end;
end; (*local*)
end; (* struct *)