(* Title: Tools/code/code_package.ML
ID: $Id$
Author: Florian Haftmann, TU Muenchen
Code generator translation kernel. Code generator Isar setup.
*)
signature CODE_PACKAGE =
sig
(* interfaces *)
val eval_conv: theory
-> (CodeThingol.code -> CodeThingol.typscheme * CodeThingol.iterm
-> string list -> cterm -> thm)
-> cterm -> thm;
val eval_term: theory
-> (CodeThingol.code -> CodeThingol.typscheme * CodeThingol.iterm
-> string list -> cterm -> 'a)
-> cterm -> 'a;
val satisfies_ref: bool option ref;
val satisfies: theory -> cterm -> string list -> bool;
val codegen_command: theory -> string -> unit;
(* axiomatic interfaces *)
type appgen;
val add_appconst: string * appgen -> theory -> theory;
val appgen_let: appgen;
val appgen_if: appgen;
val appgen_case: (theory -> term
-> ((string * typ) list * ((term * typ) * (term * term) list)) option)
-> appgen;
val timing: bool ref;
end;
structure CodePackage : CODE_PACKAGE =
struct
open BasicCodeThingol;
(** code translation **)
(* theory data *)
type appgen = theory -> ((sort -> sort) * Sorts.algebra) * Consts.T
-> CodeFuncgr.T
-> (string * typ) * term list -> CodeThingol.transact -> iterm * CodeThingol.transact;
type appgens = (int * (appgen * stamp)) Symtab.table;
val merge_appgens : appgens * appgens -> appgens =
Symtab.merge (fn ((bounds1, (_, stamp1)), (bounds2, (_, stamp2))) =>
bounds1 = bounds2 andalso stamp1 = stamp2);
structure Consttab = CodeUnit.Consttab;
type abstypes = typ Symtab.table * CodeUnit.const Consttab.table;
fun merge_abstypes ((typs1, consts1) : abstypes, (typs2, consts2) : abstypes) =
(Symtab.merge (Type.eq_type Vartab.empty) (typs1, typs2),
Consttab.merge CodeUnit.eq_const (consts1, consts2));
structure Translation = TheoryDataFun
(
type T = appgens * abstypes;
val empty = (Symtab.empty, (Symtab.empty, Consttab.empty));
val copy = I;
val extend = I;
fun merge _ ((appgens1, abstypes1), (appgens2, abstypes2)) =
(merge_appgens (appgens1, appgens2), merge_abstypes (abstypes1, abstypes2));
);
fun code_depgr thy [] = CodeFuncgr.make thy []
| code_depgr thy consts =
let
val gr = CodeFuncgr.make thy consts;
val select = CodeFuncgr.Constgraph.all_succs gr consts;
in
CodeFuncgr.Constgraph.subgraph
(member CodeUnit.eq_const select) gr
end;
fun code_thms thy =
Pretty.writeln o CodeFuncgr.pretty thy o code_depgr thy;
fun code_deps thy consts =
let
val gr = code_depgr thy consts;
fun mk_entry (const, (_, (_, parents))) =
let
val name = CodeUnit.string_of_const thy const;
val nameparents = map (CodeUnit.string_of_const thy) parents;
in { name = name, ID = name, dir = "", unfold = true,
path = "", parents = nameparents }
end;
val prgr = CodeFuncgr.Constgraph.fold ((fn x => fn xs => xs @ [x]) o mk_entry) gr [];
in Present.display_graph prgr end;
structure Program = CodeDataFun
(
type T = CodeThingol.code;
val empty = CodeThingol.empty_code;
fun merge _ = CodeThingol.merge_code;
fun purge _ NONE _ = CodeThingol.empty_code
| purge NONE _ _ = CodeThingol.empty_code
| purge (SOME thy) (SOME cs) code =
let
val cs_exisiting =
map_filter (CodeName.const_rev thy) (Graph.keys code);
val dels = (Graph.all_preds code
o map (CodeName.const thy)
o filter (member CodeUnit.eq_const cs_exisiting)
) cs;
in Graph.del_nodes dels code end;
);
(* translation kernel *)
fun get_abstype thy (tyco, tys) = case Symtab.lookup ((fst o snd o Translation.get) thy) tyco
of SOME ty => SOME ((map_atyps (fn TFree (n, _) => nth tys (the (Int.fromString n)))) ty)
| NONE => NONE;
val value_name = "Isabelle_Eval.EVAL.EVAL";
fun ensure_def thy = CodeThingol.ensure_def
(fn s => if s = value_name then "<term>" else CodeName.labelled_name thy s);
fun ensure_def_class thy (algbr as ((_, algebra), _)) funcgr class =
let
val superclasses = (Sorts.certify_sort algebra o Sorts.super_classes algebra) class;
val (v, cs) = AxClass.params_of_class thy class;
val class' = CodeName.class thy class;
val classrels' = map (curry (CodeName.classrel thy) class) superclasses;
val classops' = map (CodeName.const thy o CodeUnit.const_of_cexpr thy) cs;
val defgen_class =
fold_map (ensure_def_class thy algbr funcgr) superclasses
##>> (fold_map (exprgen_typ thy algbr funcgr) o map snd) cs
#>> (fn (superclasses, classoptyps) =>
CodeThingol.Class (superclasses ~~ classrels', (unprefix "'" v, classops' ~~ classoptyps)))
in
ensure_def thy defgen_class ("generating class " ^ quote class) class'
#> pair class'
end
and ensure_def_classrel thy algbr funcgr (subclass, superclass) =
ensure_def_class thy algbr funcgr subclass
#>> (fn _ => CodeName.classrel thy (subclass, superclass))
and ensure_def_tyco thy algbr funcgr "fun" =
pair "fun"
| ensure_def_tyco thy algbr funcgr tyco =
let
val defgen_datatype =
let
val (vs, cos) = Code.get_datatype thy tyco;
in
fold_map (exprgen_tyvar_sort thy algbr funcgr) vs
##>> fold_map (fn (c, tys) =>
fold_map (exprgen_typ thy algbr funcgr) tys
#>> (fn tys' =>
((CodeName.const thy o CodeUnit.const_of_cexpr thy)
(c, tys ---> Type (tyco, map TFree vs)), tys'))) cos
#>> (fn (vs, cos) => CodeThingol.Datatype (vs, cos))
end;
val tyco' = CodeName.tyco thy tyco;
in
ensure_def thy defgen_datatype ("generating type constructor " ^ quote tyco) tyco'
#> pair tyco'
end
and exprgen_tyvar_sort thy (algbr as ((proj_sort, _), _)) funcgr (v, sort) trns =
trns
|> fold_map (ensure_def_class thy algbr funcgr) (proj_sort sort)
|>> (fn sort => (unprefix "'" v, sort))
and exprgen_typ thy algbr funcgr (TFree vs) trns =
trns
|> exprgen_tyvar_sort thy algbr funcgr vs
|>> (fn (v, sort) => ITyVar v)
| exprgen_typ thy algbr funcgr (Type (tyco, tys)) trns =
case get_abstype thy (tyco, tys)
of SOME ty =>
trns
|> exprgen_typ thy algbr funcgr ty
| NONE =>
trns
|> ensure_def_tyco thy algbr funcgr tyco
||>> fold_map (exprgen_typ thy algbr funcgr) tys
|>> (fn (tyco, tys) => tyco `%% tys);
exception CONSTRAIN of (string * typ) * typ;
val timing = ref false;
fun exprgen_dicts thy (algbr as ((proj_sort, algebra), consts)) funcgr (ty_ctxt, sort_decl) =
let
val pp = Sign.pp thy;
datatype typarg =
Global of (class * string) * typarg list list
| Local of (class * class) list * (string * (int * sort));
fun class_relation (Global ((_, tyco), yss), _) class =
Global ((class, tyco), yss)
| class_relation (Local (classrels, v), subclass) superclass =
Local ((subclass, superclass) :: classrels, v);
fun type_constructor tyco yss class =
Global ((class, tyco), (map o map) fst yss);
fun type_variable (TFree (v, sort)) =
let
val sort' = proj_sort sort;
in map_index (fn (n, class) => (Local ([], (v, (n, sort'))), class)) sort' end;
val typargs = Sorts.of_sort_derivation pp algebra
{class_relation = class_relation, type_constructor = type_constructor,
type_variable = type_variable}
(ty_ctxt, proj_sort sort_decl);
fun mk_dict (Global (inst, yss)) =
ensure_def_inst thy algbr funcgr inst
##>> (fold_map o fold_map) mk_dict yss
#>> (fn (inst, dss) => DictConst (inst, dss))
| mk_dict (Local (classrels, (v, (k, sort)))) =
fold_map (ensure_def_classrel thy algbr funcgr) classrels
#>> (fn classrels => DictVar (classrels, (unprefix "'" v, (k, length sort))))
in
fold_map mk_dict typargs
end
and exprgen_dict_parms thy (algbr as (_, consts)) funcgr (c, ty_ctxt) =
let
val c' = CodeUnit.const_of_cexpr thy (c, ty_ctxt)
val idf = CodeName.const thy c';
val ty_decl = Consts.the_declaration consts idf;
val (tys, tys_decl) = pairself (curry (Consts.typargs consts) idf) (ty_ctxt, ty_decl);
val sorts = map (snd o dest_TVar) tys_decl;
in
fold_map (exprgen_dicts thy algbr funcgr) (tys ~~ sorts)
end
and ensure_def_inst thy (algbr as ((_, algebra), _)) funcgr (class, tyco) trns =
let
val superclasses = (Sorts.certify_sort algebra o Sorts.super_classes algebra) class;
val (var, classops) = try (AxClass.params_of_class thy) class |> the_default ("'a", [])
val vs = Name.names (Name.declare var Name.context) "'a" (Sorts.mg_domain algebra tyco [class]);
val arity_typ = Type (tyco, map TFree vs);
fun gen_superarity superclass trns =
trns
|> ensure_def_class thy algbr funcgr superclass
||>> ensure_def_classrel thy algbr funcgr (class, superclass)
||>> exprgen_dicts thy algbr funcgr (arity_typ, [superclass])
|>> (fn ((superclass, classrel), [DictConst (inst, dss)]) =>
(superclass, (classrel, (inst, dss))));
fun gen_classop_def (classop as (c, ty)) trns =
trns
|> ensure_def_const thy algbr funcgr (CodeUnit.const_of_cexpr thy classop)
||>> exprgen_term thy algbr funcgr (Const (c, map_type_tfree (K arity_typ) ty));
fun defgen_inst trns =
trns
|> ensure_def_class thy algbr funcgr class
||>> ensure_def_tyco thy algbr funcgr tyco
||>> fold_map (exprgen_tyvar_sort thy algbr funcgr) vs
||>> fold_map gen_superarity superclasses
||>> fold_map gen_classop_def classops
|>> (fn ((((class, tyco), arity), superarities), classops) =>
CodeThingol.Classinst ((class, (tyco, arity)), (superarities, classops)));
val inst = CodeName.instance thy (class, tyco);
in
trns
|> ensure_def thy defgen_inst ("generating instance " ^ quote class ^ " / " ^ quote tyco) inst
|> pair inst
end
and ensure_def_const thy (algbr as (_, consts)) funcgr (const as (c, opt_tyco)) =
let
val c' = CodeName.const thy const;
fun defgen_datatypecons trns =
trns
|> ensure_def_tyco thy algbr funcgr
((the o Code.get_datatype_of_constr thy) const)
|>> (fn _ => CodeThingol.Bot);
fun defgen_classop trns =
trns
|> ensure_def_class thy algbr funcgr
((the o AxClass.class_of_param thy) c)
|>> (fn _ => CodeThingol.Bot);
fun defgen_fun trns =
let
val const' = perhaps (Consttab.lookup ((snd o snd o Translation.get) thy)) const;
val raw_thms = CodeFuncgr.funcs funcgr const';
val ty = (Logic.unvarifyT o CodeFuncgr.typ funcgr) const';
val thms = if (null o Term.typ_tfrees) ty orelse (null o fst o strip_type) ty
then raw_thms
else map (CodeUnit.expand_eta 1) raw_thms;
val timeap = if !timing then Output.timeap_msg ("time for " ^ c')
else I;
val vs = (map dest_TFree o Consts.typargs consts) (c', ty);
val dest_eqthm =
apfst (snd o strip_comb) o Logic.dest_equals o Logic.unvarify o prop_of;
fun exprgen_eq (args, rhs) =
fold_map (exprgen_term thy algbr funcgr) args
##>> exprgen_term thy algbr funcgr rhs;
in
trns
|> fold_map (exprgen_tyvar_sort thy algbr funcgr) vs
||>> exprgen_typ thy algbr funcgr ty
||>> timeap (fold_map (exprgen_eq o dest_eqthm) thms)
|>> (fn ((vs, ty), eqs) => CodeThingol.Fun ((vs, ty), eqs))
end;
val defgen = if (is_some o Code.get_datatype_of_constr thy) const
then defgen_datatypecons
else if is_some opt_tyco
orelse (not o is_some o AxClass.class_of_param thy) c
then defgen_fun
else defgen_classop
in
ensure_def thy defgen ("generating constant " ^ CodeUnit.string_of_const thy const) c'
#> pair c'
end
and exprgen_term thy algbr funcgr (Const (c, ty)) trns =
trns
|> select_appgen thy algbr funcgr ((c, ty), [])
| exprgen_term thy algbr funcgr (Free (v, ty)) trns =
trns
|> exprgen_typ thy algbr funcgr ty
|>> (fn _ => IVar v)
| exprgen_term thy algbr funcgr (Abs (raw_v, ty, raw_t)) trns =
let
val (v, t) = Syntax.variant_abs (raw_v, ty, raw_t);
in
trns
|> exprgen_typ thy algbr funcgr ty
||>> exprgen_term thy algbr funcgr t
|>> (fn (ty, t) => (v, ty) `|-> t)
end
| exprgen_term thy algbr funcgr (t as _ $ _) trns =
case strip_comb t
of (Const (c, ty), ts) =>
trns
|> select_appgen thy algbr funcgr ((c, ty), ts)
| (t', ts) =>
trns
|> exprgen_term thy algbr funcgr t'
||>> fold_map (exprgen_term thy algbr funcgr) ts
|>> (fn (t, ts) => t `$$ ts)
and appgen_default thy algbr funcgr ((c, ty), ts) trns =
trns
|> ensure_def_const thy algbr funcgr (CodeUnit.const_of_cexpr thy (c, ty))
||>> fold_map (exprgen_typ thy algbr funcgr) ((fst o Term.strip_type) ty)
||>> exprgen_typ thy algbr funcgr ((snd o Term.strip_type) ty)
||>> exprgen_dict_parms thy algbr funcgr (c, ty)
||>> fold_map (exprgen_term thy algbr funcgr) ts
|>> (fn ((((c, tys), ty), iss), ts) => IConst (c, (iss, tys)) `$$ ts)
and select_appgen thy algbr funcgr ((c, ty), ts) trns =
case Symtab.lookup (fst (Translation.get thy)) c
of SOME (i, (appgen, _)) =>
if length ts < i then
let
val k = length ts;
val tys = (curry Library.take (i - k) o curry Library.drop k o fst o strip_type) ty;
val ctxt = (fold o fold_aterms)
(fn Free (v, _) => Name.declare v | _ => I) ts Name.context;
val vs = Name.names ctxt "a" tys;
in
trns
|> fold_map (exprgen_typ thy algbr funcgr) tys
||>> appgen thy algbr funcgr ((c, ty), ts @ map Free vs)
|>> (fn (tys, t) => map2 (fn (v, _) => pair v) vs tys `|--> t)
end
else if length ts > i then
trns
|> appgen thy algbr funcgr ((c, ty), Library.take (i, ts))
||>> fold_map (exprgen_term thy algbr funcgr) (Library.drop (i, ts))
|>> (fn (t, ts) => t `$$ ts)
else
trns
|> appgen thy algbr funcgr ((c, ty), ts)
| NONE =>
trns
|> appgen_default thy algbr funcgr ((c, ty), ts);
(* entrance points into translation kernel *)
fun ensure_def_const' thy algbr funcgr c trns =
ensure_def_const thy algbr funcgr c trns
handle CONSTRAIN ((c, ty), ty_decl) => error (
"Constant " ^ c ^ " with most general type\n"
^ CodeUnit.string_of_typ thy ty
^ "\noccurs with type\n"
^ CodeUnit.string_of_typ thy ty_decl);
fun perhaps_def_const thy algbr funcgr c trns =
case try (ensure_def_const thy algbr funcgr c) trns
of SOME (c, trns) => (SOME c, trns)
| NONE => (NONE, trns);
fun exprgen_term' thy algbr funcgr t trns =
exprgen_term thy algbr funcgr t trns
handle CONSTRAIN ((c, ty), ty_decl) => error ("In term " ^ (quote o Sign.string_of_term thy) t
^ ",\nconstant " ^ c ^ " with most general type\n"
^ CodeUnit.string_of_typ thy ty
^ "\noccurs with type\n"
^ CodeUnit.string_of_typ thy ty_decl);
(* parametrized application generators, for instantiation in object logic *)
(* (axiomatic extensions of translation kernel) *)
fun appgen_case dest_case_expr thy algbr funcgr (app as (c_ty, ts)) =
let
val SOME ([], ((st, sty), ds)) = dest_case_expr thy (list_comb (Const c_ty, ts));
fun clause_gen (dt, bt) =
exprgen_term thy algbr funcgr dt
##>> exprgen_term thy algbr funcgr bt;
in
exprgen_term thy algbr funcgr st
##>> exprgen_typ thy algbr funcgr sty
##>> fold_map clause_gen ds
##>> appgen_default thy algbr funcgr app
#>> (fn (((se, sty), ds), t0) => ICase (((se, sty), ds), t0))
end;
fun appgen_let thy algbr funcgr (app as (_, [st, ct])) =
exprgen_term thy algbr funcgr ct
##>> exprgen_term thy algbr funcgr st
##>> appgen_default thy algbr funcgr app
#>> (fn (((v, ty) `|-> be, se), t0) =>
ICase (CodeThingol.collapse_let (((v, ty), se), be), t0)
| (_, t0) => t0);
fun appgen_if thy algbr funcgr (app as (_, [tb, tt, tf])) =
exprgen_term thy algbr funcgr tb
##>> exprgen_typ thy algbr funcgr (Type ("bool", []))
##>> exprgen_term thy algbr funcgr (Const ("True", Type ("bool", [])))
##>> exprgen_term thy algbr funcgr tt
##>> exprgen_term thy algbr funcgr (Const ("False", Type ("bool", [])))
##>> exprgen_term thy algbr funcgr tf
##>> appgen_default thy algbr funcgr app
#>> (fn ((((((tb, B), T), tt), F), tf), t0) => ICase (((tb, B), [(T, tt), (F, tf)]), t0));
fun add_appconst (c, appgen) thy =
let
val i = (length o fst o strip_type o Sign.the_const_type thy) c;
val _ = Program.change thy (K CodeThingol.empty_code);
in
(Translation.map o apfst)
(Symtab.update (c, (i, (appgen, stamp ())))) thy
end;
(** abstype and constsubst interface **)
local
fun add_consts thy f (c1, c2 as (c, opt_tyco)) =
let
val _ = if
is_some (AxClass.class_of_param thy c) andalso is_none opt_tyco
orelse is_some (Code.get_datatype_of_constr thy c2)
then error ("Not a function: " ^ CodeUnit.string_of_const thy c2)
else ();
val funcgr = CodeFuncgr.make thy [c1, c2];
val ty1 = (f o CodeFuncgr.typ funcgr) c1;
val ty2 = CodeFuncgr.typ funcgr c2;
val _ = if Sign.typ_equiv thy (ty1, ty2) then () else
error ("Incompatiable type signatures of " ^ CodeUnit.string_of_const thy c1
^ " and " ^ CodeUnit.string_of_const thy c2 ^ ":\n"
^ CodeUnit.string_of_typ thy ty1 ^ "\n" ^ CodeUnit.string_of_typ thy ty2);
in Consttab.update (c1, c2) end;
fun gen_abstyp prep_const prep_typ (raw_abstyp, raw_substtyp) raw_absconsts thy =
let
val abstyp = Type.no_tvars (prep_typ thy raw_abstyp);
val substtyp = Type.no_tvars (prep_typ thy raw_substtyp);
val absconsts = (map o pairself) (prep_const thy) raw_absconsts;
val Type (abstyco, tys) = abstyp handle BIND => error ("Bad type: " ^ Sign.string_of_typ thy abstyp);
val typarms = map (fst o dest_TFree) tys handle MATCH => error ("Bad type: " ^ Sign.string_of_typ thy abstyp);
fun mk_index v =
let
val k = find_index (fn w => v = w) typarms;
in if k = ~1
then error ("Free type variable: " ^ quote v)
else TFree (string_of_int k, [])
end;
val typpat = map_atyps (fn TFree (v, _) => mk_index v) substtyp;
fun apply_typpat (Type (tyco, tys)) =
let
val tys' = map apply_typpat tys;
in if tyco = abstyco then
(map_atyps (fn TFree (n, _) => nth tys' (the (Int.fromString n)))) typpat
else
Type (tyco, tys')
end
| apply_typpat ty = ty;
val _ = Program.change thy (K CodeThingol.empty_code);
in
thy
|> (Translation.map o apsnd) (fn (abstypes, abscs) =>
(abstypes
|> Symtab.update (abstyco, typpat),
abscs
|> fold (add_consts thy apply_typpat) absconsts)
)
end;
fun gen_constsubst prep_const raw_constsubsts thy =
let
val constsubsts = (map o pairself) (prep_const thy) raw_constsubsts;
val _ = Program.change thy (K CodeThingol.empty_code);
in
thy
|> (Translation.map o apsnd o apsnd) (fold (add_consts thy I) constsubsts)
end;
in
val abstyp = gen_abstyp (K I) Sign.certify_typ;
val abstyp_e = gen_abstyp CodeUnit.read_const Sign.read_typ;
val constsubst = gen_constsubst (K I);
val constsubst_e = gen_constsubst CodeUnit.read_const;
end; (*local*)
(** code generation interfaces **)
(* generic generation combinators *)
fun generate thy funcgr gen it =
let
(*FIXME*)
val _ = CodeFuncgr.intervene thy funcgr;
val cs = map_filter (Consttab.lookup ((snd o snd o Translation.get) thy))
(CodeFuncgr.all funcgr);
val CodeFuncgr' = CodeFuncgr.make thy cs;
val naming = NameSpace.qualified_names NameSpace.default_naming;
val consttab = Consts.empty
|> fold (fn c => Consts.declare naming
((CodeName.const thy c, CodeFuncgr.typ CodeFuncgr' c), true))
(CodeFuncgr.all CodeFuncgr');
val algbr = (Code.operational_algebra thy, consttab);
in
Program.change_yield thy
(CodeThingol.start_transact (gen thy algbr CodeFuncgr' it))
|> fst
end;
fun raw_eval f thy g =
let
val value_name = "Isabelle_Eval.EVAL.EVAL";
fun ensure_eval thy algbr funcgr t =
let
val ty = fastype_of t;
val vs = typ_tfrees ty;
val defgen_eval =
fold_map (exprgen_tyvar_sort thy algbr funcgr) vs
##>> exprgen_typ thy algbr funcgr ty
##>> exprgen_term' thy algbr funcgr t
#>> (fn ((vs, ty), t) => CodeThingol.Fun ((vs, ty), [([], t)]));
fun result (dep, code) =
let
val CodeThingol.Fun ((vs, ty), [([], t)]) = Graph.get_node code value_name;
val deps = Graph.imm_succs code value_name;
val code' = Graph.del_nodes [value_name] code;
val code'' = CodeThingol.project_code false [] (SOME deps) code';
in ((code'', ((vs, ty), t), deps), (dep, code')) end;
in
ensure_def thy defgen_eval "evaluation" value_name
#> result
end;
fun h funcgr ct =
let
val (code, vs_ty_t, deps) = generate thy funcgr ensure_eval (Thm.term_of ct);
in g code vs_ty_t deps ct end;
in f thy h end;
fun eval_conv thy = raw_eval CodeFuncgr.eval_conv thy;
fun eval_term thy = raw_eval CodeFuncgr.eval_term thy;
val satisfies_ref : bool option ref = ref NONE;
fun satisfies thy ct witnesses =
let
fun evl code ((vs, ty), t) deps ct =
let
val t0 = Thm.term_of ct
val _ = (Term.map_types o Term.map_atyps) (fn _ =>
error ("Term " ^ Sign.string_of_term thy t0 ^ " contains polymorphic type"))
t0;
in
CodeTarget.eval_term thy ("CodePackage.satisfies_ref", satisfies_ref)
code (t, ty) witnesses
end;
in eval_term thy evl ct end;
fun filter_generatable thy consts =
let
val (consts', funcgr) = CodeFuncgr.make_consts thy consts;
val consts'' = generate thy funcgr (fold_map ooo perhaps_def_const) consts';
val consts''' = map_filter (fn (const, SOME _) => SOME const | (_, NONE) => NONE)
(consts' ~~ consts'');
in consts''' end;
(** toplevel interface and setup **)
local
structure P = OuterParse
and K = OuterKeyword
fun code raw_cs seris thy =
let
val (perm1, cs) = CodeUnit.read_const_exprs thy
(filter_generatable thy) raw_cs;
val (perm2, cs') = case generate thy (CodeFuncgr.make thy cs) (fold_map ooo ensure_def_const') cs
of [] => (true, NONE)
| cs => (false, SOME cs);
val code = Program.get thy;
val seris' = map (fn (((target, module), file), args) =>
CodeTarget.get_serializer thy target (perm1 orelse perm2) module file args
CodeName.labelled_name cs') seris;
in
(map (fn f => f code) seris' : unit list; ())
end;
fun code_thms_cmd thy =
code_thms thy o snd o CodeUnit.read_const_exprs thy (fst o CodeFuncgr.make_consts thy);
fun code_deps_cmd thy =
code_deps thy o snd o CodeUnit.read_const_exprs thy (fst o CodeFuncgr.make_consts thy);
val (inK, module_nameK, fileK) = ("in", "module_name", "file");
val code_exprP =
(Scan.repeat P.term
-- Scan.repeat (P.$$$ inK |-- P.name
-- Scan.option (P.$$$ module_nameK |-- P.name)
-- Scan.option (P.$$$ fileK |-- P.name)
-- Scan.optional (P.$$$ "(" |-- P.arguments --| P.$$$ ")") []
) >> (fn (raw_cs, seris) => code raw_cs seris));
val _ = OuterSyntax.add_keywords [inK, module_nameK, fileK];
val (codeK, code_abstypeK, code_axiomsK, code_thmsK, code_depsK) =
("export_code", "code_abstype", "code_axioms", "code_thms", "code_deps");
in
val codeP =
OuterSyntax.improper_command codeK "generate executable code for constants"
K.diag (P.!!! code_exprP >> (fn f => Toplevel.keep (f o Toplevel.theory_of)));
fun codegen_command thy cmd =
case Scan.read OuterLex.stopper (P.!!! code_exprP) ((filter OuterLex.is_proper o OuterSyntax.scan) cmd)
of SOME f => (writeln "Now generating code..."; f thy)
| NONE => error ("Bad directive " ^ quote cmd);
val code_abstypeP =
OuterSyntax.command code_abstypeK "axiomatic abstypes for code generation" K.thy_decl (
(P.typ -- P.typ -- Scan.optional (P.$$$ "where" |-- Scan.repeat1
(P.term --| (P.$$$ "\\<equiv>" || P.$$$ "==") -- P.term)) [])
>> (Toplevel.theory o uncurry abstyp_e)
);
val code_axiomsP =
OuterSyntax.command code_axiomsK "axiomatic constant equalities for code generation" K.thy_decl (
Scan.repeat1 (P.term --| (P.$$$ "\\<equiv>" || P.$$$ "==") -- P.term)
>> (Toplevel.theory o constsubst_e)
);
val code_thmsP =
OuterSyntax.improper_command code_thmsK "print system of defining equations for code" OuterKeyword.diag
(Scan.repeat P.term
>> (fn cs => Toplevel.no_timing o Toplevel.unknown_theory
o Toplevel.keep ((fn thy => code_thms_cmd thy cs) o Toplevel.theory_of)));
val code_depsP =
OuterSyntax.improper_command code_depsK "visualize dependencies of defining equations for code" OuterKeyword.diag
(Scan.repeat P.term
>> (fn cs => Toplevel.no_timing o Toplevel.unknown_theory
o Toplevel.keep ((fn thy => code_deps_cmd thy cs) o Toplevel.theory_of)));
val _ = OuterSyntax.add_parsers [codeP, code_abstypeP, code_axiomsP, code_thmsP, code_depsP];
end; (* local *)
end; (* struct *)