1 (* Title: Tools/Code/code_target.ML
2 Author: Florian Haftmann, TU Muenchen
4 Generic infrastructure for target language data.
7 signature CODE_TARGET =
9 val cert_tyco: theory -> string -> string
10 val read_tyco: theory -> string -> string
12 val export_code_for: theory -> Path.T option -> string -> int option -> string -> Token.T list
13 -> Code_Thingol.naming -> Code_Thingol.program -> string list -> unit
14 val produce_code_for: theory -> string -> int option -> string -> Token.T list
15 -> Code_Thingol.naming -> Code_Thingol.program -> string list -> string * string option list
16 val present_code_for: theory -> string -> int option -> string -> Token.T list
17 -> Code_Thingol.naming -> Code_Thingol.program -> string list * string list -> string
18 val check_code_for: theory -> string -> bool -> Token.T list
19 -> Code_Thingol.naming -> Code_Thingol.program -> string list -> unit
21 val export_code: theory -> string list
22 -> (((string * string) * Path.T option) * Token.T list) list -> unit
23 val produce_code: theory -> string list
24 -> string -> int option -> string -> Token.T list -> string * string option list
25 val present_code: theory -> string list -> (Code_Thingol.naming -> string list)
26 -> string -> int option -> string -> Token.T list -> string
27 val check_code: theory -> string list
28 -> ((string * bool) * Token.T list) list -> unit
30 val shell_command: string (*theory name*) -> string (*export_code expr*) -> unit
33 type literals = Code_Printer.literals
34 val add_target: string * { serializer: serializer, literals: literals,
35 check: { env_var: string, make_destination: Path.T -> Path.T,
36 make_command: string -> string -> string } } -> theory -> theory
37 val extend_target: string *
38 (string * (Code_Thingol.naming -> Code_Thingol.program -> Code_Thingol.program))
40 val assert_target: theory -> string -> string
41 val the_literals: theory -> string -> literals
43 val parse_args: 'a parser -> Token.T list -> 'a
44 val serialization: (int -> Path.T option -> 'a -> unit)
45 -> (string list -> int -> 'a -> string * string option list)
46 -> 'a -> serialization
47 val set_default_code_width: int -> theory -> theory
49 val allow_abort: string -> theory -> theory
50 type tyco_syntax = Code_Printer.tyco_syntax
51 type const_syntax = Code_Printer.const_syntax
52 val add_class_syntax: string -> class -> string option -> theory -> theory
53 val add_instance_syntax: string -> class * string -> unit option -> theory -> theory
54 val add_tyco_syntax: string -> string -> tyco_syntax option -> theory -> theory
55 val add_const_syntax: string -> string -> const_syntax option -> theory -> theory
56 val add_reserved: string -> string -> theory -> theory
57 val add_include: string -> string * (string * string list) option -> theory -> theory
60 structure Code_Target : CODE_TARGET =
63 open Basic_Code_Thingol;
65 type literals = Code_Printer.literals;
66 type tyco_syntax = Code_Printer.tyco_syntax;
67 type const_syntax = Code_Printer.const_syntax;
70 (** abstract nonsense **)
72 datatype destination = Export of Path.T option | Produce | Present of string list;
73 type serialization = int -> destination -> (string * string option list) option;
75 fun stmt_names_of_destination (Present stmt_names) = stmt_names
76 | stmt_names_of_destination _ = [];
78 fun serialization output _ content width (Export some_path) = (output width some_path content; NONE)
79 | serialization _ string content width Produce = SOME (string [] width content)
80 | serialization _ string content width (Present _) = SOME (string [] width content);
82 fun export some_path f = (f (Export some_path); ());
83 fun produce f = the (f Produce);
84 fun present stmt_names f = fst (the (f (Present stmt_names)));
89 datatype symbol_syntax_data = Symbol_Syntax_Data of {
90 class: string Symtab.table,
91 instance: unit Symreltab.table,
92 tyco: Code_Printer.tyco_syntax Symtab.table,
93 const: Code_Printer.const_syntax Symtab.table
96 fun make_symbol_syntax_data ((class, instance), (tyco, const)) =
97 Symbol_Syntax_Data { class = class, instance = instance, tyco = tyco, const = const };
98 fun map_symbol_syntax_data f (Symbol_Syntax_Data { class, instance, tyco, const }) =
99 make_symbol_syntax_data (f ((class, instance), (tyco, const)));
100 fun merge_symbol_syntax_data
101 (Symbol_Syntax_Data { class = class1, instance = instance1, tyco = tyco1, const = const1 },
102 Symbol_Syntax_Data { class = class2, instance = instance2, tyco = tyco2, const = const2 }) =
103 make_symbol_syntax_data (
104 (Symtab.join (K snd) (class1, class2),
105 Symreltab.join (K snd) (instance1, instance2)),
106 (Symtab.join (K snd) (tyco1, tyco2),
107 Symtab.join (K snd) (const1, const2))
110 type serializer = Token.T list (*arguments*) -> {
111 labelled_name: string -> string,
112 reserved_syms: string list,
113 includes: (string * Pretty.T) list,
114 module_alias: string -> string option,
115 class_syntax: string -> string option,
116 tyco_syntax: string -> Code_Printer.tyco_syntax option,
117 const_syntax: string -> Code_Printer.activated_const_syntax option,
118 program: Code_Thingol.program,
120 presentation_names: string list }
123 datatype description = Fundamental of { serializer: serializer,
125 check: { env_var: string, make_destination: Path.T -> Path.T,
126 make_command: string -> string -> string } }
127 | Extension of string *
128 (Code_Thingol.naming -> Code_Thingol.program -> Code_Thingol.program);
130 datatype target = Target of {
132 description: description,
133 reserved: string list,
134 includes: (Pretty.T * string list) Symtab.table,
135 module_alias: string Symtab.table,
136 symbol_syntax: symbol_syntax_data
139 fun make_target ((serial, description), ((reserved, includes), (module_alias, symbol_syntax))) =
140 Target { serial = serial, description = description, reserved = reserved,
141 includes = includes, module_alias = module_alias, symbol_syntax = symbol_syntax };
142 fun map_target f ( Target { serial, description, reserved, includes, module_alias, symbol_syntax } ) =
143 make_target (f ((serial, description), ((reserved, includes), (module_alias, symbol_syntax))));
144 fun merge_target strict target (Target { serial = serial1, description = description,
145 reserved = reserved1, includes = includes1,
146 module_alias = module_alias1, symbol_syntax = symbol_syntax1 },
147 Target { serial = serial2, description = _,
148 reserved = reserved2, includes = includes2,
149 module_alias = module_alias2, symbol_syntax = symbol_syntax2 }) =
150 if serial1 = serial2 orelse not strict then
151 make_target ((serial1, description),
152 ((merge (op =) (reserved1, reserved2), Symtab.join (K snd) (includes1, includes2)),
153 (Symtab.join (K snd) (module_alias1, module_alias2),
154 merge_symbol_syntax_data (symbol_syntax1, symbol_syntax2))
157 error ("Incompatible targets: " ^ quote target);
159 fun the_description (Target { description, ... }) = description;
160 fun the_reserved (Target { reserved, ... }) = reserved;
161 fun the_includes (Target { includes, ... }) = includes;
162 fun the_module_alias (Target { module_alias , ... }) = module_alias;
163 fun the_symbol_syntax (Target { symbol_syntax = Symbol_Syntax_Data x, ... }) = x;
165 structure Targets = Theory_Data
167 type T = (target Symtab.table * string list) * int;
168 val empty = ((Symtab.empty, []), 80);
170 fun merge (((target1, exc1), width1), ((target2, exc2), width2)) : T =
171 ((Symtab.join (merge_target true) (target1, target2),
172 Library.merge (op =) (exc1, exc2)), Int.max (width1, width2));
175 val abort_allowed = snd o fst o Targets.get;
177 fun assert_target thy target = if Symtab.defined ((fst o fst) (Targets.get thy)) target
179 else error ("Unknown code target language: " ^ quote target);
181 fun put_target (target, seri) thy =
183 val lookup_target = Symtab.lookup ((fst o fst) (Targets.get thy));
185 of Extension (super, _) => if is_some (lookup_target super) then ()
186 else error ("Unknown code target language: " ^ quote super)
188 val overwriting = case (Option.map the_description o lookup_target) target
190 | SOME (Extension _) => true
191 | SOME (Fundamental _) => (case seri
192 of Extension _ => error ("Will not overwrite existing target " ^ quote target)
194 val _ = if overwriting
195 then warning ("Overwriting existing target " ^ quote target)
199 |> (Targets.map o apfst o apfst o Symtab.update)
200 (target, make_target ((serial (), seri), (([], Symtab.empty),
201 (Symtab.empty, make_symbol_syntax_data ((Symtab.empty, Symreltab.empty),
202 (Symtab.empty, Symtab.empty))))))
205 fun add_target (target, seri) = put_target (target, Fundamental seri);
206 fun extend_target (target, (super, modify)) =
207 put_target (target, Extension (super, modify));
209 fun map_target_data target f thy =
211 val _ = assert_target thy target;
214 |> (Targets.map o apfst o apfst o Symtab.map_entry target o map_target) f
217 fun map_reserved target =
218 map_target_data target o apsnd o apfst o apfst;
219 fun map_includes target =
220 map_target_data target o apsnd o apfst o apsnd;
221 fun map_module_alias target =
222 map_target_data target o apsnd o apsnd o apfst;
223 fun map_symbol_syntax target =
224 map_target_data target o apsnd o apsnd o apsnd o map_symbol_syntax_data;
226 fun set_default_code_width k = (Targets.map o apsnd) (K k);
229 (** serializer usage **)
233 fun the_fundamental thy =
235 val ((targets, _), _) = Targets.get thy;
236 fun fundamental target = case Symtab.lookup targets target
237 of SOME data => (case the_description data
238 of Fundamental data => data
239 | Extension (super, _) => fundamental super)
240 | NONE => error ("Unknown code target language: " ^ quote target);
243 fun the_literals thy = #literals o the_fundamental thy;
247 fun activate_target_for thy target naming program =
249 val ((targets, abortable), default_width) = Targets.get thy;
250 fun collapse_hierarchy target =
252 val data = case Symtab.lookup targets target
254 | NONE => error ("Unknown code target language: " ^ quote target);
255 in case the_description data
256 of Fundamental _ => (I, data)
257 | Extension (super, modify) => let
258 val (modify', data') = collapse_hierarchy super
259 in (modify' #> modify naming, merge_target false target (data', data)) end
261 val (modify, data) = collapse_hierarchy target;
262 in (default_width, abortable, data, modify program) end;
264 fun activate_syntax lookup_name src_tab = Symtab.empty
265 |> fold_map (fn thing_identifier => fn tab => case lookup_name thing_identifier
266 of SOME name => (SOME name,
267 Symtab.update_new (name, the (Symtab.lookup src_tab thing_identifier)) tab)
268 | NONE => (NONE, tab)) (Symtab.keys src_tab)
271 fun activate_const_syntax thy literals src_tab naming = (Symtab.empty, naming)
272 |> fold_map (fn c => fn (tab, naming) =>
273 case Code_Thingol.lookup_const naming c
275 val (syn, naming') = Code_Printer.activate_const_syntax thy
276 literals c (the (Symtab.lookup src_tab c)) naming
277 in (SOME name, (Symtab.update_new (name, syn) tab, naming')) end
278 | NONE => (NONE, (tab, naming))) (Symtab.keys src_tab)
281 fun activate_symbol_syntax thy literals naming
282 class_syntax instance_syntax tyco_syntax const_syntax =
284 val (names_class, class_syntax') =
285 activate_syntax (Code_Thingol.lookup_class naming) class_syntax;
286 val names_inst = map_filter (Code_Thingol.lookup_instance naming)
287 (Symreltab.keys instance_syntax);
288 val (names_tyco, tyco_syntax') =
289 activate_syntax (Code_Thingol.lookup_tyco naming) tyco_syntax;
290 val (names_const, (const_syntax', _)) =
291 activate_const_syntax thy literals const_syntax naming;
293 (names_class @ names_inst @ names_tyco @ names_const,
294 (class_syntax', tyco_syntax', const_syntax'))
297 fun project_program thy abortable names_hidden names1 program2 =
299 val names2 = subtract (op =) names_hidden names1;
300 val program3 = Graph.subgraph (not o member (op =) names_hidden) program2;
301 val names4 = Graph.all_succs program3 names2;
302 val empty_funs = filter_out (member (op =) abortable)
303 (Code_Thingol.empty_funs program3);
304 val _ = if null empty_funs then () else error ("No code equations for "
305 ^ commas (map (Sign.extern_const thy) empty_funs));
306 val program4 = Graph.subgraph (member (op =) names4) program3;
307 in (names4, program4) end;
309 fun invoke_serializer thy abortable serializer literals reserved abs_includes
310 module_alias proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax
311 module_name args naming proto_program (names, presentation_names) =
313 val (names_hidden, (class_syntax, tyco_syntax, const_syntax)) =
314 activate_symbol_syntax thy literals naming
315 proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax;
316 val (names_all, program) = project_program thy abortable names_hidden names proto_program;
317 val includes = abs_includes names_all;
320 labelled_name = Code_Thingol.labelled_name thy proto_program,
321 reserved_syms = reserved,
323 module_alias = if module_name = "" then Symtab.lookup module_alias else K (SOME module_name),
324 class_syntax = Symtab.lookup class_syntax,
325 tyco_syntax = Symtab.lookup tyco_syntax,
326 const_syntax = Symtab.lookup const_syntax,
329 presentation_names = presentation_names }
332 fun mount_serializer thy target some_width raw_module_name args naming proto_program names destination =
334 val (default_width, abortable, data, program) =
335 activate_target_for thy target naming proto_program;
336 val serializer = case the_description data
337 of Fundamental seri => #serializer seri;
338 val presentation_names = stmt_names_of_destination destination;
339 val module_name = if null presentation_names
340 then raw_module_name else "Code";
341 val reserved = the_reserved data;
342 fun select_include names_all (name, (content, cs)) =
343 if null cs then SOME (name, content)
344 else if exists (fn c => case Code_Thingol.lookup_const naming c
345 of SOME name => member (op =) names_all name
347 then SOME (name, content) else NONE;
348 fun includes names_all = map_filter (select_include names_all)
349 ((Symtab.dest o the_includes) data);
350 val module_alias = the_module_alias data
351 val { class, instance, tyco, const } = the_symbol_syntax data;
352 val literals = the_literals thy target;
353 val width = the_default default_width some_width;
355 invoke_serializer thy abortable serializer literals reserved
356 includes module_alias class instance tyco const module_name args
357 naming program (names, presentation_names) width destination
360 fun assert_module_name "" = error ("Empty module name not allowed.")
361 | assert_module_name module_name = module_name;
365 fun export_code_for thy some_path target some_width some_module_name args naming program names =
366 export some_path (mount_serializer thy target some_width some_module_name args naming program names);
368 fun produce_code_for thy target some_width module_name args naming program names =
369 produce (mount_serializer thy target some_width (assert_module_name module_name) args naming program names);
371 fun present_code_for thy target some_width module_name args naming program (names, selects) =
372 present selects (mount_serializer thy target some_width (assert_module_name module_name) args naming program names);
374 fun check_code_for thy target strict args naming program names_cs =
376 val module_name = "Code";
377 val { env_var, make_destination, make_command } =
378 (#check o the_fundamental thy) target;
379 val env_param = getenv env_var;
380 fun ext_check env_param p =
382 val destination = make_destination p;
383 val _ = export (SOME destination) (mount_serializer thy target (SOME 80)
384 module_name args naming program names_cs);
385 val cmd = make_command env_param module_name;
386 in if bash ("cd " ^ File.shell_path p ^ " && " ^ cmd ^ " 2>&1") <> 0
387 then error ("Code check failed for " ^ target ^ ": " ^ cmd)
392 then error (env_var ^ " not set; cannot check code for " ^ target)
393 else warning (env_var ^ " not set; skipped checking code for " ^ target)
394 else Cache_IO.with_tmp_dir "Code_Test" (ext_check env_param)
400 (* code generation *)
402 fun transitivly_non_empty_funs thy naming program =
404 val cs = subtract (op =) (abort_allowed thy) (Code_Thingol.empty_funs program);
405 val names = map_filter (Code_Thingol.lookup_const naming) cs;
406 in subtract (op =) (Graph.all_preds program names) (Graph.keys program) end;
408 fun read_const_exprs thy cs =
410 val (cs1, cs2) = Code_Thingol.read_const_exprs thy cs;
411 val (names2, (naming, program)) = Code_Thingol.consts_program thy true cs2;
412 val names3 = transitivly_non_empty_funs thy naming program;
413 val cs3 = map_filter (fn (c, name) =>
414 if member (op =) names3 name then SOME c else NONE) (cs2 ~~ names2);
415 in union (op =) cs3 cs1 end;
417 fun prep_destination "" = NONE
418 | prep_destination "-" = NONE
419 | prep_destination s = SOME (Path.explode s);
421 fun export_code thy cs seris =
423 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
424 val _ = map (fn (((target, module_name), some_path), args) =>
425 export_code_for thy some_path target NONE module_name args naming program names_cs) seris;
428 fun export_code_cmd raw_cs seris thy = export_code thy (read_const_exprs thy raw_cs)
429 ((map o apfst o apsnd) prep_destination seris);
431 fun produce_code thy cs target some_width some_module_name args =
433 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
434 in produce_code_for thy target some_width some_module_name args naming program names_cs end;
436 fun present_code thy cs names_stmt target some_width some_module_name args =
438 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
439 in present_code_for thy target some_width some_module_name args naming program (names_cs, names_stmt naming) end;
441 fun check_code thy cs seris =
443 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
444 val _ = map (fn ((target, strict), args) =>
445 check_code_for thy target strict args naming program names_cs) seris;
448 fun check_code_cmd raw_cs seris thy = check_code thy (read_const_exprs thy raw_cs) seris;
451 (** serializer configuration **)
455 fun cert_class thy class =
457 val _ = AxClass.get_info thy class;
460 fun read_class thy = cert_class thy o Sign.intern_class thy;
462 fun cert_tyco thy tyco =
464 val _ = if Sign.declared_tyname thy tyco then ()
465 else error ("No such type constructor: " ^ quote tyco);
468 fun read_tyco thy = cert_tyco thy o Sign.intern_type thy;
470 fun cert_inst thy (class, tyco) =
471 (cert_class thy class, cert_tyco thy tyco);
473 fun read_inst thy (raw_tyco, raw_class) =
474 (read_class thy raw_class, read_tyco thy raw_tyco);
476 fun gen_add_syntax (mapp, upd, del) prep_x prep_syn target raw_x some_raw_syn thy =
478 val x = prep_x thy raw_x;
479 val change = case some_raw_syn
480 of SOME raw_syn => upd (x, prep_syn thy x raw_syn)
482 in (map_symbol_syntax target o mapp) change thy end;
484 fun gen_add_class_syntax prep_class =
485 gen_add_syntax (apfst o apfst, Symtab.update, Symtab.delete_safe) prep_class ((K o K) I);
487 fun gen_add_instance_syntax prep_inst =
488 gen_add_syntax (apfst o apsnd, Symreltab.update, Symreltab.delete_safe) prep_inst ((K o K) I);
490 fun gen_add_tyco_syntax prep_tyco =
491 gen_add_syntax (apsnd o apfst, Symtab.update, Symtab.delete_safe) prep_tyco
492 (fn thy => fn tyco => fn syn => if fst syn <> Sign.arity_number thy tyco
493 then error ("Number of arguments mismatch in syntax for type constructor " ^ quote tyco)
496 fun gen_add_const_syntax prep_const =
497 gen_add_syntax (apsnd o apsnd, Symtab.update, Symtab.delete_safe) prep_const
498 (fn thy => fn c => fn syn =>
499 if Code_Printer.requires_args syn > Code.args_number thy c
500 then error ("Too many arguments in syntax for constant " ^ quote c)
503 fun add_reserved target =
505 fun add sym syms = if member (op =) syms sym
506 then error ("Reserved symbol " ^ quote sym ^ " already declared")
507 else insert (op =) sym syms
508 in map_reserved target o add end;
510 fun gen_add_include read_const target args thy =
512 fun add (name, SOME (content, raw_cs)) incls =
514 val _ = if Symtab.defined incls name
515 then warning ("Overwriting existing include " ^ name)
517 val cs = map (read_const thy) raw_cs;
518 in Symtab.update (name, (Code_Printer.str content, cs)) incls end
519 | add (name, NONE) incls = Symtab.delete name incls;
520 in map_includes target (add args) thy end;
522 val add_include = gen_add_include (K I);
523 val add_include_cmd = gen_add_include Code.read_const;
525 fun add_module_alias target (thyname, "") =
526 map_module_alias target (Symtab.delete thyname)
527 | add_module_alias target (thyname, modlname) =
529 val xs = Long_Name.explode modlname;
530 val xs' = map (Name.desymbolize true) xs;
532 then map_module_alias target (Symtab.update (thyname, modlname))
533 else error ("Invalid module name: " ^ quote modlname ^ "\n"
534 ^ "perhaps try " ^ quote (Long_Name.implode xs'))
537 fun gen_allow_abort prep_const raw_c thy =
539 val c = prep_const thy raw_c;
540 in thy |> (Targets.map o apfst o apsnd) (insert (op =) c) end;
543 (* concrete syntax *)
547 fun zip_list (x::xs) f g =
550 fold_map (fn x => g |-- f >> pair x) xs
551 :|-- (fn xys => pair ((x, y) :: xys)));
553 fun process_multi_syntax parse_thing parse_syntax change =
554 (Parse.and_list1 parse_thing
555 :|-- (fn things => Scan.repeat1 (Parse.$$$ "(" |-- Parse.name --
556 (zip_list things parse_syntax (Parse.$$$ "and")) --| Parse.$$$ ")")))
557 >> (Toplevel.theory oo fold)
558 (fn (target, syns) => fold (fn (raw_x, syn) => change target raw_x syn) syns);
562 val add_class_syntax = gen_add_class_syntax cert_class;
563 val add_instance_syntax = gen_add_instance_syntax cert_inst;
564 val add_tyco_syntax = gen_add_tyco_syntax cert_tyco;
565 val add_const_syntax = gen_add_const_syntax (K I);
566 val allow_abort = gen_allow_abort (K I);
567 val add_reserved = add_reserved;
568 val add_include = add_include;
570 val add_class_syntax_cmd = gen_add_class_syntax read_class;
571 val add_instance_syntax_cmd = gen_add_instance_syntax read_inst;
572 val add_tyco_syntax_cmd = gen_add_tyco_syntax read_tyco;
573 val add_const_syntax_cmd = gen_add_const_syntax Code.read_const;
574 val allow_abort_cmd = gen_allow_abort Code.read_const;
576 fun parse_args f args =
577 case Scan.read Token.stopper f args
579 | NONE => error "Bad serializer arguments";
584 val (inK, module_nameK, fileK, checkingK) = ("in", "module_name", "file", "checking");
586 val code_expr_argsP = Scan.optional (Parse.$$$ "(" |-- Args.parse --| Parse.$$$ ")") [];
589 Scan.repeat1 Parse.term_group :|-- (fn raw_cs =>
590 ((Parse.$$$ checkingK |-- Scan.repeat (Parse.name
591 -- ((Parse.$$$ "?" |-- Scan.succeed false) || Scan.succeed true) -- code_expr_argsP))
592 >> (fn seris => check_code_cmd raw_cs seris)
593 || Scan.repeat (Parse.$$$ inK |-- Parse.name
594 -- Scan.optional (Parse.$$$ module_nameK |-- Parse.name) ""
595 -- Scan.optional (Parse.$$$ fileK |-- Parse.name) ""
596 -- code_expr_argsP) >> (fn seris => export_code_cmd raw_cs seris)));
598 val _ = List.app Keyword.keyword [inK, module_nameK, fileK, checkingK];
601 Outer_Syntax.command "code_class" "define code syntax for class" Keyword.thy_decl (
602 process_multi_syntax Parse.xname (Scan.option Parse.string)
603 add_class_syntax_cmd);
606 Outer_Syntax.command "code_instance" "define code syntax for instance" Keyword.thy_decl (
607 process_multi_syntax (Parse.xname --| Parse.$$$ "::" -- Parse.xname)
608 (Scan.option (Parse.minus >> K ()))
609 add_instance_syntax_cmd);
612 Outer_Syntax.command "code_type" "define code syntax for type constructor" Keyword.thy_decl (
613 process_multi_syntax Parse.xname Code_Printer.parse_tyco_syntax
614 add_tyco_syntax_cmd);
617 Outer_Syntax.command "code_const" "define code syntax for constant" Keyword.thy_decl (
618 process_multi_syntax Parse.term_group Code_Printer.parse_const_syntax
619 add_const_syntax_cmd);
622 Outer_Syntax.command "code_reserved" "declare words as reserved for target language"
624 Parse.name -- Scan.repeat1 Parse.name
625 >> (fn (target, reserveds) => (Toplevel.theory o fold (add_reserved target)) reserveds)
629 Outer_Syntax.command "code_include" "declare piece of code to be included in generated code"
631 Parse.name -- Parse.name -- (Parse.text :|-- (fn "-" => Scan.succeed NONE
632 | s => Scan.optional (Parse.$$$ "attach" |-- Scan.repeat1 Parse.term) [] >> pair s >> SOME))
633 >> (fn ((target, name), content_consts) =>
634 (Toplevel.theory o add_include_cmd target) (name, content_consts))
638 Outer_Syntax.command "code_modulename" "alias module to other name" Keyword.thy_decl (
639 Parse.name -- Scan.repeat1 (Parse.name -- Parse.name)
640 >> (fn (target, modlnames) => (Toplevel.theory o fold (add_module_alias target)) modlnames)
644 Outer_Syntax.command "code_abort" "permit constant to be implemented as program abort"
646 Scan.repeat1 Parse.term_group >> (Toplevel.theory o fold allow_abort_cmd)
650 Outer_Syntax.command "export_code" "generate executable code for constants"
651 Keyword.diag (Parse.!!! code_exprP >> (fn f => Toplevel.keep (f o Toplevel.theory_of)));
653 fun shell_command thyname cmd = Toplevel.program (fn _ =>
654 (use_thy thyname; case Scan.read Token.stopper (Parse.!!! code_exprP)
655 ((filter Token.is_proper o Outer_Syntax.scan Position.none) cmd)
656 of SOME f => (writeln "Now generating code..."; f (Thy_Info.get_theory thyname))
657 | NONE => error ("Bad directive " ^ quote cmd)))
658 handle Runtime.TOPLEVEL_ERROR => OS.Process.exit OS.Process.failure;