slightly more standard Isabelle_System.with_tmp_file/with_tmp_dir (cf. Scala version);
more robust rm_tree -- somewhat dangerous and not exported;
tuned;
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
11 val read_const_exprs: theory -> string list -> string list
13 val export_code_for: theory -> Path.T option -> string -> int option -> string -> Token.T list
14 -> Code_Thingol.naming -> Code_Thingol.program -> string list -> unit
15 val produce_code_for: theory -> string -> int option -> string -> Token.T list
16 -> Code_Thingol.naming -> Code_Thingol.program -> string list -> string * string option list
17 val present_code_for: theory -> string -> int option -> string -> Token.T list
18 -> Code_Thingol.naming -> Code_Thingol.program -> string list * string list -> string
19 val check_code_for: theory -> string -> bool -> Token.T list
20 -> Code_Thingol.naming -> Code_Thingol.program -> string list -> unit
22 val export_code: theory -> string list
23 -> (((string * string) * Path.T option) * Token.T list) list -> unit
24 val produce_code: theory -> string list
25 -> string -> int option -> string -> Token.T list -> string * string option list
26 val present_code: theory -> string list -> (Code_Thingol.naming -> string list)
27 -> string -> int option -> string -> Token.T list -> string
28 val check_code: theory -> string list
29 -> ((string * bool) * Token.T list) list -> unit
32 type literals = Code_Printer.literals
33 val add_target: string * { serializer: serializer, literals: literals,
34 check: { env_var: string, make_destination: Path.T -> Path.T,
35 make_command: string -> string -> string } } -> theory -> theory
36 val extend_target: string *
37 (string * (Code_Thingol.naming -> Code_Thingol.program -> Code_Thingol.program))
39 val assert_target: theory -> string -> string
40 val the_literals: theory -> string -> literals
42 val parse_args: 'a parser -> Token.T list -> 'a
43 val serialization: (int -> Path.T option -> 'a -> unit)
44 -> (string list -> int -> 'a -> string * (string -> string option))
45 -> 'a -> serialization
46 val set_default_code_width: int -> theory -> theory
48 val allow_abort: string -> theory -> theory
49 type tyco_syntax = Code_Printer.tyco_syntax
50 type const_syntax = Code_Printer.const_syntax
51 val add_class_syntax: string -> class -> string option -> theory -> theory
52 val add_instance_syntax: string -> class * string -> unit option -> theory -> theory
53 val add_tyco_syntax: string -> string -> tyco_syntax option -> theory -> theory
54 val add_const_syntax: string -> string -> const_syntax option -> theory -> theory
55 val add_reserved: string -> string -> theory -> theory
56 val add_include: string -> string * (string * string list) option -> theory -> theory
58 val codegen_tool: string (*theory name*) -> string (*export_code expr*) -> unit
61 structure Code_Target : CODE_TARGET =
64 open Basic_Code_Thingol;
66 type literals = Code_Printer.literals;
67 type tyco_syntax = Code_Printer.tyco_syntax;
68 type const_syntax = Code_Printer.const_syntax;
71 (** abstract nonsense **)
73 datatype destination = Export of Path.T option | Produce | Present of string list;
74 type serialization = int -> destination -> (string * (string -> string option)) option;
76 fun serialization output _ content width (Export some_path) =
77 (output width some_path content; NONE)
78 | serialization _ string content width Produce =
79 string [] width content |> SOME
80 | serialization _ string content width (Present stmt_names) =
81 string stmt_names width content
82 |> apfst (Pretty.output (SOME width) o Pretty.str)
85 fun export some_path f = (f (Export some_path); ());
86 fun produce f = the (f Produce);
87 fun present stmt_names f = fst (the (f (Present stmt_names)));
92 datatype symbol_syntax_data = Symbol_Syntax_Data of {
93 class: string Symtab.table,
94 instance: unit Symreltab.table,
95 tyco: Code_Printer.tyco_syntax Symtab.table,
96 const: Code_Printer.const_syntax Symtab.table
99 fun make_symbol_syntax_data ((class, instance), (tyco, const)) =
100 Symbol_Syntax_Data { class = class, instance = instance, tyco = tyco, const = const };
101 fun map_symbol_syntax_data f (Symbol_Syntax_Data { class, instance, tyco, const }) =
102 make_symbol_syntax_data (f ((class, instance), (tyco, const)));
103 fun merge_symbol_syntax_data
104 (Symbol_Syntax_Data { class = class1, instance = instance1, tyco = tyco1, const = const1 },
105 Symbol_Syntax_Data { class = class2, instance = instance2, tyco = tyco2, const = const2 }) =
106 make_symbol_syntax_data (
107 (Symtab.join (K snd) (class1, class2),
108 Symreltab.join (K snd) (instance1, instance2)),
109 (Symtab.join (K snd) (tyco1, tyco2),
110 Symtab.join (K snd) (const1, const2))
113 type serializer = Token.T list
115 labelled_name: string -> string,
116 reserved_syms: string list,
117 includes: (string * Pretty.T) list,
118 module_alias: string -> string option,
119 class_syntax: string -> string option,
120 tyco_syntax: string -> Code_Printer.tyco_syntax option,
121 const_syntax: string -> Code_Printer.activated_const_syntax option,
122 program: Code_Thingol.program }
125 datatype description = Fundamental of { serializer: serializer,
127 check: { env_var: string, make_destination: Path.T -> Path.T,
128 make_command: string -> string -> string } }
129 | Extension of string *
130 (Code_Thingol.naming -> Code_Thingol.program -> Code_Thingol.program);
132 datatype target = Target of {
134 description: description,
135 reserved: string list,
136 includes: (Pretty.T * string list) Symtab.table,
137 module_alias: string Symtab.table,
138 symbol_syntax: symbol_syntax_data
141 fun make_target ((serial, description), ((reserved, includes), (module_alias, symbol_syntax))) =
142 Target { serial = serial, description = description, reserved = reserved,
143 includes = includes, module_alias = module_alias, symbol_syntax = symbol_syntax };
144 fun map_target f ( Target { serial, description, reserved, includes, module_alias, symbol_syntax } ) =
145 make_target (f ((serial, description), ((reserved, includes), (module_alias, symbol_syntax))));
146 fun merge_target strict target (Target { serial = serial1, description = description,
147 reserved = reserved1, includes = includes1,
148 module_alias = module_alias1, symbol_syntax = symbol_syntax1 },
149 Target { serial = serial2, description = _,
150 reserved = reserved2, includes = includes2,
151 module_alias = module_alias2, symbol_syntax = symbol_syntax2 }) =
152 if serial1 = serial2 orelse not strict then
153 make_target ((serial1, description),
154 ((merge (op =) (reserved1, reserved2), Symtab.join (K snd) (includes1, includes2)),
155 (Symtab.join (K snd) (module_alias1, module_alias2),
156 merge_symbol_syntax_data (symbol_syntax1, symbol_syntax2))
159 error ("Incompatible targets: " ^ quote target);
161 fun the_description (Target { description, ... }) = description;
162 fun the_reserved (Target { reserved, ... }) = reserved;
163 fun the_includes (Target { includes, ... }) = includes;
164 fun the_module_alias (Target { module_alias , ... }) = module_alias;
165 fun the_symbol_syntax (Target { symbol_syntax = Symbol_Syntax_Data x, ... }) = x;
167 structure Targets = Theory_Data
169 type T = (target Symtab.table * string list) * int;
170 val empty = ((Symtab.empty, []), 80);
172 fun merge (((target1, exc1), width1), ((target2, exc2), width2)) : T =
173 ((Symtab.join (merge_target true) (target1, target2),
174 Library.merge (op =) (exc1, exc2)), Int.max (width1, width2));
177 val abort_allowed = snd o fst o Targets.get;
179 fun assert_target thy target = if Symtab.defined ((fst o fst) (Targets.get thy)) target
181 else error ("Unknown code target language: " ^ quote target);
183 fun put_target (target, seri) thy =
185 val lookup_target = Symtab.lookup ((fst o fst) (Targets.get thy));
187 of Extension (super, _) => if is_some (lookup_target super) then ()
188 else error ("Unknown code target language: " ^ quote super)
190 val overwriting = case (Option.map the_description o lookup_target) target
192 | SOME (Extension _) => true
193 | SOME (Fundamental _) => (case seri
194 of Extension _ => error ("Will not overwrite existing target " ^ quote target)
196 val _ = if overwriting
197 then warning ("Overwriting existing target " ^ quote target)
201 |> (Targets.map o apfst o apfst o Symtab.update)
202 (target, make_target ((serial (), seri), (([], Symtab.empty),
203 (Symtab.empty, make_symbol_syntax_data ((Symtab.empty, Symreltab.empty),
204 (Symtab.empty, Symtab.empty))))))
207 fun add_target (target, seri) = put_target (target, Fundamental seri);
208 fun extend_target (target, (super, modify)) =
209 put_target (target, Extension (super, modify));
211 fun map_target_data target f thy =
213 val _ = assert_target thy target;
216 |> (Targets.map o apfst o apfst o Symtab.map_entry target o map_target) f
219 fun map_reserved target =
220 map_target_data target o apsnd o apfst o apfst;
221 fun map_includes target =
222 map_target_data target o apsnd o apfst o apsnd;
223 fun map_module_alias target =
224 map_target_data target o apsnd o apsnd o apfst;
225 fun map_symbol_syntax target =
226 map_target_data target o apsnd o apsnd o apsnd o map_symbol_syntax_data;
228 fun set_default_code_width k = (Targets.map o apsnd) (K k);
231 (** serializer usage **)
235 fun the_fundamental thy =
237 val ((targets, _), _) = Targets.get thy;
238 fun fundamental target = case Symtab.lookup targets target
239 of SOME data => (case the_description data
240 of Fundamental data => data
241 | Extension (super, _) => fundamental super)
242 | NONE => error ("Unknown code target language: " ^ quote target);
245 fun the_literals thy = #literals o the_fundamental thy;
247 fun collapse_hierarchy thy =
249 val ((targets, _), _) = Targets.get thy;
250 fun collapse 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 _ => (K I, data)
257 | Extension (super, modify) => let
258 val (modify', data') = collapse super
259 in (fn naming => modify' naming #> modify naming, merge_target false target (data', data)) end
265 fun activate_target thy target =
267 val ((targets, abortable), default_width) = Targets.get thy;
268 val (modify, data) = collapse_hierarchy thy target;
269 in (default_width, abortable, data, modify) end;
271 fun activate_syntax lookup_name src_tab = Symtab.empty
272 |> fold_map (fn thing_identifier => fn tab => case lookup_name thing_identifier
273 of SOME name => (SOME name,
274 Symtab.update_new (name, the (Symtab.lookup src_tab thing_identifier)) tab)
275 | NONE => (NONE, tab)) (Symtab.keys src_tab)
278 fun activate_const_syntax thy literals src_tab naming = (Symtab.empty, naming)
279 |> fold_map (fn c => fn (tab, naming) =>
280 case Code_Thingol.lookup_const naming c
282 val (syn, naming') = Code_Printer.activate_const_syntax thy
283 literals c (the (Symtab.lookup src_tab c)) naming
284 in (SOME name, (Symtab.update_new (name, syn) tab, naming')) end
285 | NONE => (NONE, (tab, naming))) (Symtab.keys src_tab)
288 fun activate_symbol_syntax thy literals naming
289 class_syntax instance_syntax tyco_syntax const_syntax =
291 val (names_class, class_syntax') =
292 activate_syntax (Code_Thingol.lookup_class naming) class_syntax;
293 val names_inst = map_filter (Code_Thingol.lookup_instance naming)
294 (Symreltab.keys instance_syntax);
295 val (names_tyco, tyco_syntax') =
296 activate_syntax (Code_Thingol.lookup_tyco naming) tyco_syntax;
297 val (names_const, (const_syntax', _)) =
298 activate_const_syntax thy literals const_syntax naming;
300 (names_class @ names_inst @ names_tyco @ names_const,
301 (class_syntax', tyco_syntax', const_syntax'))
304 fun project_program thy abortable names_hidden names1 program2 =
306 val names2 = subtract (op =) names_hidden names1;
307 val program3 = Graph.subgraph (not o member (op =) names_hidden) program2;
308 val names4 = Graph.all_succs program3 names2;
309 val empty_funs = filter_out (member (op =) abortable)
310 (Code_Thingol.empty_funs program3);
311 val _ = if null empty_funs then () else error ("No code equations for "
312 ^ commas (map (Sign.extern_const thy) empty_funs));
313 val program4 = Graph.subgraph (member (op =) names4) program3;
314 in (names4, program4) end;
316 fun invoke_serializer thy abortable serializer literals reserved all_includes
317 module_alias proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax
318 module_name args naming proto_program names =
320 val (names_hidden, (class_syntax, tyco_syntax, const_syntax)) =
321 activate_symbol_syntax thy literals naming
322 proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax;
323 val (names_all, program) = project_program thy abortable names_hidden names proto_program;
324 fun select_include (name, (content, cs)) =
325 if null cs orelse exists (fn c => case Code_Thingol.lookup_const naming c
326 of SOME name => member (op =) names_all name
328 then SOME (name, content) else NONE;
329 val includes = map_filter select_include (Symtab.dest all_includes);
332 labelled_name = Code_Thingol.labelled_name thy proto_program,
333 reserved_syms = reserved,
335 module_alias = if module_name = "" then Symtab.lookup module_alias else K (SOME module_name),
336 class_syntax = Symtab.lookup class_syntax,
337 tyco_syntax = Symtab.lookup tyco_syntax,
338 const_syntax = Symtab.lookup const_syntax,
342 fun mount_serializer thy target some_width module_name args =
344 val (default_width, abortable, data, modify) = activate_target thy target;
345 val serializer = case the_description data
346 of Fundamental seri => #serializer seri;
347 val reserved = the_reserved data;
348 val module_alias = the_module_alias data
349 val { class, instance, tyco, const } = the_symbol_syntax data;
350 val literals = the_literals thy target;
351 val width = the_default default_width some_width;
352 in fn naming => fn program => fn names =>
353 invoke_serializer thy abortable serializer literals reserved
354 (the_includes data) module_alias class instance tyco const module_name args
355 naming (modify naming program) names width
358 fun assert_module_name "" = error ("Empty module name not allowed.")
359 | assert_module_name module_name = module_name;
363 fun export_code_for thy some_path target some_width module_name args =
364 export some_path ooo mount_serializer thy target some_width module_name args;
366 fun produce_code_for thy target some_width module_name args =
368 val serializer = mount_serializer thy target some_width (assert_module_name module_name) args;
369 in fn naming => fn program => fn names =>
370 produce (serializer naming program names) |> apsnd (fn deresolve => map deresolve names)
373 fun present_code_for thy target some_width module_name args =
375 val serializer = mount_serializer thy target some_width (assert_module_name module_name) args;
376 in fn naming => fn program => fn (names, selects) =>
377 present selects (serializer naming program names)
380 fun check_code_for thy target strict args naming program names_cs =
382 val module_name = "Code";
383 val { env_var, make_destination, make_command } =
384 (#check o the_fundamental thy) target;
385 val env_param = getenv env_var;
386 fun ext_check env_param p =
388 val destination = make_destination p;
389 val _ = export (SOME destination) (mount_serializer thy target (SOME 80)
390 module_name args naming program names_cs);
391 val cmd = make_command env_param module_name;
392 in if bash ("cd " ^ File.shell_path p ^ " && " ^ cmd ^ " 2>&1") <> 0
393 then error ("Code check failed for " ^ target ^ ": " ^ cmd)
398 then error (env_var ^ " not set; cannot check code for " ^ target)
399 else warning (env_var ^ " not set; skipped checking code for " ^ target)
400 else Isabelle_System.with_tmp_dir "Code_Test" (ext_check env_param)
406 (* code generation *)
408 fun transitivly_non_empty_funs thy naming program =
410 val cs = subtract (op =) (abort_allowed thy) (Code_Thingol.empty_funs program);
411 val names = map_filter (Code_Thingol.lookup_const naming) cs;
412 in subtract (op =) (Graph.all_preds program names) (Graph.keys program) end;
414 fun read_const_exprs thy cs =
416 val (cs1, cs2) = Code_Thingol.read_const_exprs thy cs;
417 val (names2, (naming, program)) = Code_Thingol.consts_program thy true cs2;
418 val names3 = transitivly_non_empty_funs thy naming program;
419 val cs3 = map_filter (fn (c, name) =>
420 if member (op =) names3 name then SOME c else NONE) (cs2 ~~ names2);
421 in union (op =) cs3 cs1 end;
423 fun prep_destination "" = NONE
424 | prep_destination "-" = NONE
425 | prep_destination s = SOME (Path.explode s);
427 fun export_code thy cs seris =
429 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
430 val _ = map (fn (((target, module_name), some_path), args) =>
431 export_code_for thy some_path target NONE module_name args naming program names_cs) seris;
434 fun export_code_cmd raw_cs seris thy = export_code thy (read_const_exprs thy raw_cs)
435 ((map o apfst o apsnd) prep_destination seris);
437 fun produce_code thy cs target some_width some_module_name args =
439 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
440 in produce_code_for thy target some_width some_module_name args naming program names_cs end;
442 fun present_code thy cs names_stmt target some_width some_module_name args =
444 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
445 in present_code_for thy target some_width some_module_name args naming program (names_cs, names_stmt naming) end;
447 fun check_code thy cs seris =
449 val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
450 val _ = map (fn ((target, strict), args) =>
451 check_code_for thy target strict args naming program names_cs) seris;
454 fun check_code_cmd raw_cs seris thy = check_code thy (read_const_exprs thy raw_cs) seris;
458 val parse_const_terms = Scan.repeat1 Args.term
459 >> (fn ts => fn thy => map (Code.check_const thy) ts);
461 fun parse_names category parse internalize lookup =
462 Scan.lift (Args.parens (Args.$$$ category)) |-- Scan.repeat1 parse
463 >> (fn xs => fn thy => fn naming => map_filter (lookup naming o internalize thy) xs);
465 val parse_consts = parse_names "consts" Args.term
466 Code.check_const Code_Thingol.lookup_const ;
468 val parse_types = parse_names "types" (Scan.lift Args.name)
469 Sign.intern_type Code_Thingol.lookup_tyco;
471 val parse_classes = parse_names "classes" (Scan.lift Args.name)
472 Sign.intern_class Code_Thingol.lookup_class;
474 val parse_instances = parse_names "instances" (Scan.lift (Args.name --| Args.$$$ "::" -- Args.name))
475 (fn thy => fn (raw_tyco, raw_class) => (Sign.intern_class thy raw_class, Sign.intern_type thy raw_tyco))
476 Code_Thingol.lookup_instance;
480 val _ = Thy_Output.antiquotation "code_stmts"
481 (parse_const_terms -- Scan.repeat (parse_consts || parse_types || parse_classes || parse_instances)
482 -- Scan.lift (Args.parens (Args.name -- Scan.option Parse.int)))
483 (fn {context = ctxt, ...} => fn ((mk_cs, mk_stmtss), (target, some_width)) =>
484 let val thy = ProofContext.theory_of ctxt in
485 present_code thy (mk_cs thy)
486 (fn naming => maps (fn f => f thy naming) mk_stmtss)
487 target some_width "Example" []
493 (** serializer configuration **)
497 fun cert_class thy class =
499 val _ = AxClass.get_info thy class;
502 fun read_class thy = cert_class thy o Sign.intern_class thy;
504 fun cert_tyco thy tyco =
506 val _ = if Sign.declared_tyname thy tyco then ()
507 else error ("No such type constructor: " ^ quote tyco);
510 fun read_tyco thy = cert_tyco thy o Sign.intern_type thy;
512 fun cert_inst thy (class, tyco) =
513 (cert_class thy class, cert_tyco thy tyco);
515 fun read_inst thy (raw_tyco, raw_class) =
516 (read_class thy raw_class, read_tyco thy raw_tyco);
518 fun gen_add_syntax (mapp, upd, del) prep_x prep_syn target raw_x some_raw_syn thy =
520 val x = prep_x thy raw_x;
521 val change = case some_raw_syn
522 of SOME raw_syn => upd (x, prep_syn thy x raw_syn)
524 in (map_symbol_syntax target o mapp) change thy end;
526 fun gen_add_class_syntax prep_class =
527 gen_add_syntax (apfst o apfst, Symtab.update, Symtab.delete_safe) prep_class ((K o K) I);
529 fun gen_add_instance_syntax prep_inst =
530 gen_add_syntax (apfst o apsnd, Symreltab.update, Symreltab.delete_safe) prep_inst ((K o K) I);
532 fun gen_add_tyco_syntax prep_tyco =
533 gen_add_syntax (apsnd o apfst, Symtab.update, Symtab.delete_safe) prep_tyco
534 (fn thy => fn tyco => fn syn => if fst syn <> Sign.arity_number thy tyco
535 then error ("Number of arguments mismatch in syntax for type constructor " ^ quote tyco)
538 fun gen_add_const_syntax prep_const =
539 gen_add_syntax (apsnd o apsnd, Symtab.update, Symtab.delete_safe) prep_const
540 (fn thy => fn c => fn syn =>
541 if Code_Printer.requires_args syn > Code.args_number thy c
542 then error ("Too many arguments in syntax for constant " ^ quote c)
545 fun add_reserved target sym thy =
547 val (_, data) = collapse_hierarchy thy target;
548 val _ = if member (op =) (the_reserved data) sym
549 then error ("Reserved symbol " ^ quote sym ^ " already declared")
553 |> map_reserved target (insert (op =) sym)
556 fun gen_add_include read_const target args thy =
558 fun add (name, SOME (content, raw_cs)) incls =
560 val _ = if Symtab.defined incls name
561 then warning ("Overwriting existing include " ^ name)
563 val cs = map (read_const thy) raw_cs;
564 in Symtab.update (name, (Code_Printer.str content, cs)) incls end
565 | add (name, NONE) incls = Symtab.delete name incls;
566 in map_includes target (add args) thy end;
568 val add_include = gen_add_include (K I);
569 val add_include_cmd = gen_add_include Code.read_const;
571 fun add_module_alias target (thyname, "") =
572 map_module_alias target (Symtab.delete thyname)
573 | add_module_alias target (thyname, modlname) =
575 val xs = Long_Name.explode modlname;
576 val xs' = map (Name.desymbolize true) xs;
578 then map_module_alias target (Symtab.update (thyname, modlname))
579 else error ("Invalid module name: " ^ quote modlname ^ "\n"
580 ^ "perhaps try " ^ quote (Long_Name.implode xs'))
583 fun gen_allow_abort prep_const raw_c thy =
585 val c = prep_const thy raw_c;
586 in thy |> (Targets.map o apfst o apsnd) (insert (op =) c) end;
589 (* concrete syntax *)
593 fun zip_list (x::xs) f g =
596 fold_map (fn x => g |-- f >> pair x) xs
597 :|-- (fn xys => pair ((x, y) :: xys)));
599 fun process_multi_syntax parse_thing parse_syntax change =
600 (Parse.and_list1 parse_thing
601 :|-- (fn things => Scan.repeat1 (Parse.$$$ "(" |-- Parse.name --
602 (zip_list things parse_syntax (Parse.$$$ "and")) --| Parse.$$$ ")")))
603 >> (Toplevel.theory oo fold)
604 (fn (target, syns) => fold (fn (raw_x, syn) => change target raw_x syn) syns);
608 val add_class_syntax = gen_add_class_syntax cert_class;
609 val add_instance_syntax = gen_add_instance_syntax cert_inst;
610 val add_tyco_syntax = gen_add_tyco_syntax cert_tyco;
611 val add_const_syntax = gen_add_const_syntax (K I);
612 val allow_abort = gen_allow_abort (K I);
613 val add_reserved = add_reserved;
614 val add_include = add_include;
616 val add_class_syntax_cmd = gen_add_class_syntax read_class;
617 val add_instance_syntax_cmd = gen_add_instance_syntax read_inst;
618 val add_tyco_syntax_cmd = gen_add_tyco_syntax read_tyco;
619 val add_const_syntax_cmd = gen_add_const_syntax Code.read_const;
620 val allow_abort_cmd = gen_allow_abort Code.read_const;
622 fun parse_args f args =
623 case Scan.read Token.stopper f args
625 | NONE => error "Bad serializer arguments";
630 val (inK, module_nameK, fileK, checkingK) = ("in", "module_name", "file", "checking");
632 val code_expr_argsP = Scan.optional (Parse.$$$ "(" |-- Args.parse --| Parse.$$$ ")") [];
635 Scan.repeat1 Parse.term_group :|-- (fn raw_cs =>
636 ((Parse.$$$ checkingK |-- Scan.repeat (Parse.name
637 -- ((Parse.$$$ "?" |-- Scan.succeed false) || Scan.succeed true) -- code_expr_argsP))
638 >> (fn seris => check_code_cmd raw_cs seris)
639 || Scan.repeat (Parse.$$$ inK |-- Parse.name
640 -- Scan.optional (Parse.$$$ module_nameK |-- Parse.name) ""
641 -- Scan.optional (Parse.$$$ fileK |-- Parse.name) ""
642 -- code_expr_argsP) >> (fn seris => export_code_cmd raw_cs seris)));
644 val _ = List.app Keyword.keyword [inK, module_nameK, fileK, checkingK];
647 Outer_Syntax.command "code_class" "define code syntax for class" Keyword.thy_decl (
648 process_multi_syntax Parse.xname (Scan.option Parse.string)
649 add_class_syntax_cmd);
652 Outer_Syntax.command "code_instance" "define code syntax for instance" Keyword.thy_decl (
653 process_multi_syntax (Parse.xname --| Parse.$$$ "::" -- Parse.xname)
654 (Scan.option (Parse.minus >> K ()))
655 add_instance_syntax_cmd);
658 Outer_Syntax.command "code_type" "define code syntax for type constructor" Keyword.thy_decl (
659 process_multi_syntax Parse.xname Code_Printer.parse_tyco_syntax
660 add_tyco_syntax_cmd);
663 Outer_Syntax.command "code_const" "define code syntax for constant" Keyword.thy_decl (
664 process_multi_syntax Parse.term_group Code_Printer.parse_const_syntax
665 add_const_syntax_cmd);
668 Outer_Syntax.command "code_reserved" "declare words as reserved for target language"
670 Parse.name -- Scan.repeat1 Parse.name
671 >> (fn (target, reserveds) => (Toplevel.theory o fold (add_reserved target)) reserveds)
675 Outer_Syntax.command "code_include" "declare piece of code to be included in generated code"
677 Parse.name -- Parse.name -- (Parse.text :|-- (fn "-" => Scan.succeed NONE
678 | s => Scan.optional (Parse.$$$ "attach" |-- Scan.repeat1 Parse.term) [] >> pair s >> SOME))
679 >> (fn ((target, name), content_consts) =>
680 (Toplevel.theory o add_include_cmd target) (name, content_consts))
684 Outer_Syntax.command "code_modulename" "alias module to other name" Keyword.thy_decl (
685 Parse.name -- Scan.repeat1 (Parse.name -- Parse.name)
686 >> (fn (target, modlnames) => (Toplevel.theory o fold (add_module_alias target)) modlnames)
690 Outer_Syntax.command "code_abort" "permit constant to be implemented as program abort"
692 Scan.repeat1 Parse.term_group >> (Toplevel.theory o fold allow_abort_cmd)
696 Outer_Syntax.command "export_code" "generate executable code for constants"
697 Keyword.diag (Parse.!!! code_exprP >> (fn f => Toplevel.keep (f o Toplevel.theory_of)));
702 (** external entrance point -- for codegen tool **)
704 fun codegen_tool thyname cmd_expr =
706 val thy = Thy_Info.get_theory thyname;
707 val parse = Scan.read Token.stopper (Parse.!!! code_exprP) o
708 (filter Token.is_proper o Outer_Syntax.scan Position.none);
709 in case parse cmd_expr
710 of SOME f => (writeln "Now generating code..."; f thy)
711 | NONE => error ("Bad directive " ^ quote cmd_expr)