haftmann@37745: (* Title: Tools/Code/code_scala.ML haftmann@37745: Author: Florian Haftmann, TU Muenchen haftmann@34294: haftmann@34294: Serializer for Scala. haftmann@34294: *) haftmann@34294: haftmann@34294: signature CODE_SCALA = haftmann@34294: sig haftmann@37745: val target: string haftmann@34294: val setup: theory -> theory haftmann@34294: end; haftmann@34294: haftmann@34294: structure Code_Scala : CODE_SCALA = haftmann@34294: struct haftmann@34294: haftmann@34294: val target = "Scala"; haftmann@34294: haftmann@34294: open Basic_Code_Thingol; haftmann@34294: open Code_Printer; haftmann@34294: haftmann@34294: infixr 5 @@; haftmann@34294: infixr 5 @|; haftmann@34294: haftmann@34294: haftmann@34294: (** Scala serializer **) haftmann@34294: haftmann@38923: fun print_scala_stmt labelled_name tyco_syntax const_syntax reserved haftmann@38780: args_num is_singleton_constr (deresolve, deresolve_full) = haftmann@34294: let haftmann@37639: fun lookup_tyvar tyvars = lookup_var tyvars o first_upper; haftmann@37639: fun intro_tyvars vs = intro_vars (map (first_upper o fst) vs); haftmann@37639: fun print_tyco_expr tyvars fxy (tyco, tys) = applify "[" "]" haftmann@37639: (print_typ tyvars NOBR) fxy ((str o deresolve) tyco) tys haftmann@38923: and print_typ tyvars fxy (tyco `%% tys) = (case tyco_syntax tyco haftmann@37639: of NONE => print_tyco_expr tyvars fxy (tyco, tys) haftmann@34294: | SOME (i, print) => print (print_typ tyvars) fxy tys) haftmann@37243: | print_typ tyvars fxy (ITyVar v) = (str o lookup_tyvar tyvars) v; haftmann@37639: fun print_dicttyp tyvars (class, ty) = print_tyco_expr tyvars NOBR (class, [ty]); haftmann@37639: fun print_tupled_typ tyvars ([], ty) = haftmann@37639: print_typ tyvars NOBR ty haftmann@37639: | print_tupled_typ tyvars ([ty1], ty2) = haftmann@37639: concat [print_typ tyvars BR ty1, str "=>", print_typ tyvars NOBR ty2] haftmann@37639: | print_tupled_typ tyvars (tys, ty) = haftmann@37639: concat [enum "," "(" ")" (map (print_typ tyvars NOBR) tys), haftmann@37639: str "=>", print_typ tyvars NOBR ty]; haftmann@37639: fun constraint p1 p2 = Pretty.block [p1, str ":", Pretty.brk 1, p2]; haftmann@34294: fun print_var vars NONE = str "_" haftmann@34294: | print_var vars (SOME v) = (str o lookup_var vars) v haftmann@35228: fun print_term tyvars is_pat some_thm vars fxy (IConst c) = haftmann@35228: print_app tyvars is_pat some_thm vars fxy (c, []) haftmann@35228: | print_term tyvars is_pat some_thm vars fxy (t as (t1 `$ t2)) = haftmann@34294: (case Code_Thingol.unfold_const_app t haftmann@35228: of SOME app => print_app tyvars is_pat some_thm vars fxy app haftmann@37639: | _ => applify "(" ")" (print_term tyvars is_pat some_thm vars NOBR) fxy haftmann@37639: (print_term tyvars is_pat some_thm vars BR t1) [t2]) haftmann@35228: | print_term tyvars is_pat some_thm vars fxy (IVar v) = haftmann@34294: print_var vars v haftmann@35228: | print_term tyvars is_pat some_thm vars fxy ((v, ty) `|=> t) = haftmann@34294: let haftmann@34294: val vars' = intro_vars (the_list v) vars; haftmann@34294: in haftmann@34294: concat [ haftmann@37639: enclose "(" ")" [constraint (print_var vars' v) (print_typ tyvars NOBR ty)], haftmann@34294: str "=>", haftmann@35228: print_term tyvars false some_thm vars' NOBR t haftmann@34294: ] wenzelm@41939: end haftmann@35228: | print_term tyvars is_pat some_thm vars fxy (ICase (cases as (_, t0))) = haftmann@34294: (case Code_Thingol.unfold_const_app t0 haftmann@38923: of SOME (c_ts as ((c, _), _)) => if is_none (const_syntax c) haftmann@35228: then print_case tyvars some_thm vars fxy cases haftmann@35228: else print_app tyvars is_pat some_thm vars fxy c_ts haftmann@35228: | NONE => print_case tyvars some_thm vars fxy cases) haftmann@37464: and print_app tyvars is_pat some_thm vars fxy bulwahn@45009: (app as ((c, (((tys, _), (arg_tys, _)), _)), ts)) = haftmann@34294: let haftmann@34294: val k = length ts; bulwahn@45009: val tys' = if is_pat orelse bulwahn@45009: (is_none (const_syntax c) andalso is_singleton_constr c) then [] else tys; haftmann@38923: val (l, print') = case const_syntax c haftmann@38059: of NONE => (args_num c, fn fxy => fn ts => applify "(" ")" haftmann@37639: (print_term tyvars is_pat some_thm vars NOBR) fxy haftmann@37639: (applify "[" "]" (print_typ tyvars NOBR) bulwahn@45009: NOBR ((str o deresolve) c) tys') ts) haftmann@38059: | SOME (Plain_const_syntax (k, s)) => (k, fn fxy => fn ts => applify "(" ")" haftmann@37881: (print_term tyvars is_pat some_thm vars NOBR) fxy haftmann@37881: (applify "[" "]" (print_typ tyvars NOBR) bulwahn@45009: NOBR (str s) tys') ts) haftmann@37881: | SOME (Complex_const_syntax (k, print)) => haftmann@38059: (k, fn fxy => fn ts => print (print_term tyvars is_pat some_thm) some_thm vars fxy bulwahn@45009: (ts ~~ take k arg_tys)) haftmann@38059: in if k = l then print' fxy ts haftmann@34294: else if k < l then haftmann@35228: print_term tyvars is_pat some_thm vars fxy (Code_Thingol.eta_expand l app) haftmann@34294: else let haftmann@34294: val (ts1, ts23) = chop l ts; haftmann@34294: in haftmann@38059: Pretty.block (print' BR ts1 :: map (fn t => Pretty.block haftmann@35228: [str ".apply(", print_term tyvars is_pat some_thm vars NOBR t, str ")"]) ts23) haftmann@34294: end end haftmann@37464: and print_bind tyvars some_thm fxy p = haftmann@37464: gen_print_bind (print_term tyvars true) some_thm fxy p haftmann@35228: and print_case tyvars some_thm vars fxy (cases as ((_, [_]), _)) = haftmann@34294: let haftmann@41781: val (bind :: binds, body) = Code_Thingol.unfold_let (ICase cases); haftmann@41781: fun print_match_val ((pat, ty), t) vars = haftmann@41781: vars haftmann@41781: |> print_bind tyvars some_thm BR pat haftmann@41781: |>> (fn p => (false, concat [str "val", constraint p (print_typ tyvars NOBR ty), haftmann@41781: str "=", print_term tyvars false some_thm vars NOBR t])); haftmann@41781: fun print_match_seq t vars = haftmann@41781: ((true, print_term tyvars false some_thm vars NOBR t), vars); haftmann@41781: fun print_match is_first ((IVar NONE, ty), t) = haftmann@41784: if Code_Thingol.is_IAbs t andalso is_first haftmann@41781: then print_match_val ((IVar NONE, ty), t) haftmann@41781: else print_match_seq t haftmann@41781: | print_match _ ((pat, ty), t) = haftmann@41781: print_match_val ((pat, ty), t); haftmann@41781: val (seps_ps, vars') = haftmann@41781: vars |> print_match true bind ||>> fold_map (print_match false) binds |>> uncurry cons; haftmann@38059: val all_seps_ps = seps_ps @ [(true, print_term tyvars false some_thm vars' NOBR body)]; haftmann@38059: fun insert_seps [(_, p)] = [p] haftmann@38059: | insert_seps ((_, p) :: (seps_ps as (sep, _) :: _)) = haftmann@38059: (if sep then Pretty.block [p, str ";"] else p) :: insert_seps seps_ps haftmann@41781: in brackify_block fxy (str "{") (insert_seps all_seps_ps) (str "}") end haftmann@35228: | print_case tyvars some_thm vars fxy (((t, ty), clauses as _ :: _), _) = haftmann@34294: let haftmann@34294: fun print_select (pat, body) = haftmann@34294: let haftmann@37464: val (p_pat, vars') = print_bind tyvars some_thm NOBR pat vars; haftmann@37464: val p_body = print_term tyvars false some_thm vars' NOBR body haftmann@37464: in concat [str "case", p_pat, str "=>", p_body] end; haftmann@34294: in brackify_block fxy haftmann@35228: (concat [print_term tyvars false some_thm vars NOBR t, str "match", str "{"]) haftmann@34294: (map print_select clauses) wenzelm@41939: (str "}") haftmann@34294: end haftmann@35228: | print_case tyvars some_thm vars fxy ((_, []), _) = haftmann@34294: (brackify fxy o Pretty.breaks o map str) ["error(\"empty case\")"]; haftmann@37639: fun print_context tyvars vs name = applify "[" "]" haftmann@37639: (fn (v, sort) => (Pretty.block o map str) haftmann@41781: (lookup_tyvar tyvars v :: maps (fn sort => [" : ", deresolve sort]) sort)) haftmann@38809: NOBR ((str o deresolve) name) vs; haftmann@37639: fun print_defhead tyvars vars name vs params tys ty = haftmann@37639: Pretty.block [str "def ", constraint (applify "(" ")" (fn (param, ty) => haftmann@37639: constraint ((str o lookup_var vars) param) (print_typ tyvars NOBR ty)) haftmann@37639: NOBR (print_context tyvars vs name) (params ~~ tys)) (print_typ tyvars NOBR ty), haftmann@37639: str " ="]; haftmann@37639: fun print_def name (vs, ty) [] = haftmann@37639: let haftmann@37639: val (tys, ty') = Code_Thingol.unfold_fun ty; wenzelm@43329: val params = Name.invent (snd reserved) "a" (length tys); haftmann@37639: val tyvars = intro_tyvars vs reserved; haftmann@37639: val vars = intro_vars params reserved; haftmann@37639: in haftmann@37639: concat [print_defhead tyvars vars name vs params tys ty', haftmann@37639: str ("error(\"" ^ name ^ "\")")] haftmann@37639: end haftmann@37639: | print_def name (vs, ty) eqs = haftmann@37639: let haftmann@37639: val tycos = fold (fn ((ts, t), _) => haftmann@37639: fold Code_Thingol.add_tyconames (t :: ts)) eqs []; haftmann@37639: val tyvars = reserved haftmann@37639: |> intro_base_names haftmann@38923: (is_none o tyco_syntax) deresolve tycos haftmann@37639: |> intro_tyvars vs; haftmann@37639: val simple = case eqs haftmann@37639: of [((ts, _), _)] => forall Code_Thingol.is_IVar ts haftmann@37639: | _ => false; haftmann@37639: val consts = fold Code_Thingol.add_constnames haftmann@37639: (map (snd o fst) eqs) []; haftmann@37639: val vars1 = reserved haftmann@37639: |> intro_base_names haftmann@38923: (is_none o const_syntax) deresolve consts haftmann@37639: val params = if simple haftmann@37639: then (map (fn IVar (SOME x) => x) o fst o fst o hd) eqs haftmann@37639: else aux_params vars1 (map (fst o fst) eqs); haftmann@37639: val vars2 = intro_vars params vars1; haftmann@37639: val (tys', ty') = Code_Thingol.unfold_fun_n (length params) ty; haftmann@38922: fun tuplify [p] = p haftmann@38922: | tuplify ps = enum "," "(" ")" ps; haftmann@37639: fun print_rhs vars' ((_, t), (some_thm, _)) = haftmann@37639: print_term tyvars false some_thm vars' NOBR t; haftmann@37639: fun print_clause (eq as ((ts, _), (some_thm, _))) = haftmann@34294: let haftmann@37639: val vars' = intro_vars ((fold o Code_Thingol.fold_varnames) haftmann@37639: (insert (op =)) ts []) vars1; haftmann@37639: in haftmann@37639: concat [str "case", haftmann@38922: tuplify (map (print_term tyvars true some_thm vars' NOBR) ts), haftmann@37639: str "=>", print_rhs vars' eq] haftmann@37639: end; haftmann@37639: val head = print_defhead tyvars vars2 name vs params tys' ty'; haftmann@37639: in if simple then haftmann@37639: concat [head, print_rhs vars2 (hd eqs)] haftmann@37639: else haftmann@37639: Pretty.block_enclose haftmann@38922: (concat [head, tuplify (map (str o lookup_var vars2) params), haftmann@37639: str "match", str "{"], str "}") haftmann@37639: (map print_clause eqs) haftmann@37639: end; haftmann@39023: val print_method = str o Library.enclose "`" "`" o deresolve_full; haftmann@37639: fun print_stmt (name, Code_Thingol.Fun (_, (((vs, ty), raw_eqs), _))) = haftmann@37639: print_def name (vs, ty) (filter (snd o snd) raw_eqs) haftmann@34294: | print_stmt (name, Code_Thingol.Datatype (_, (vs, cos))) = haftmann@34294: let haftmann@37639: val tyvars = intro_tyvars vs reserved; haftmann@37450: fun print_co ((co, _), []) = haftmann@38809: concat [str "final", str "case", str "object", (str o deresolve) co, haftmann@38809: str "extends", applify "[" "]" I NOBR ((str o deresolve) name) haftmann@34294: (replicate (length vs) (str "Nothing"))] haftmann@37450: | print_co ((co, vs_args), tys) = haftmann@37639: concat [applify "(" ")" haftmann@37639: (fn (v, arg) => constraint (str v) (print_typ tyvars NOBR arg)) NOBR haftmann@37639: (applify "[" "]" (str o lookup_tyvar tyvars) NOBR ((concat o map str) haftmann@38809: ["final", "case", "class", deresolve co]) vs_args) wenzelm@43329: (Name.invent_names (snd reserved) "a" tys), haftmann@37639: str "extends", haftmann@37639: applify "[" "]" (str o lookup_tyvar tyvars o fst) NOBR haftmann@38809: ((str o deresolve) name) vs haftmann@37639: ]; haftmann@34294: in haftmann@37639: Pretty.chunks (applify "[" "]" (str o prefix "+" o lookup_tyvar tyvars o fst) haftmann@38809: NOBR ((concat o map str) ["abstract", "sealed", "class", deresolve name]) vs haftmann@37639: :: map print_co cos) haftmann@34294: end haftmann@37447: | print_stmt (name, Code_Thingol.Class (_, (v, (super_classes, classparams)))) = haftmann@34294: let haftmann@37639: val tyvars = intro_tyvars [(v, [name])] reserved; haftmann@37639: fun add_typarg s = Pretty.block haftmann@37639: [str s, str "[", (str o lookup_tyvar tyvars) v, str "]"]; haftmann@37384: fun print_super_classes [] = NONE haftmann@37384: | print_super_classes classes = SOME (concat (str "extends" haftmann@37639: :: separate (str "with") (map (add_typarg o deresolve o fst) classes))); haftmann@34294: fun print_classparam_val (classparam, ty) = haftmann@37639: concat [str "val", constraint (print_method classparam) haftmann@37639: ((print_tupled_typ tyvars o Code_Thingol.unfold_fun) ty)]; haftmann@34294: fun print_classparam_def (classparam, ty) = haftmann@34294: let haftmann@34294: val (tys, ty) = Code_Thingol.unfold_fun ty; wenzelm@43329: val [implicit_name] = Name.invent (snd reserved) (lookup_tyvar tyvars v) 1; haftmann@37639: val proto_vars = intro_vars [implicit_name] reserved; wenzelm@43329: val auxs = Name.invent (snd proto_vars) "a" (length tys); haftmann@37639: val vars = intro_vars auxs proto_vars; haftmann@34294: in haftmann@37639: concat [str "def", constraint (Pretty.block [applify "(" ")" haftmann@37639: (fn (aux, ty) => constraint ((str o lookup_var vars) aux) haftmann@38809: (print_typ tyvars NOBR ty)) NOBR (add_typarg (deresolve classparam)) haftmann@37639: (auxs ~~ tys), str "(implicit ", str implicit_name, str ": ", haftmann@37639: add_typarg (deresolve name), str ")"]) (print_typ tyvars NOBR ty), str "=", haftmann@37639: applify "(" ")" (str o lookup_var vars) NOBR haftmann@37639: (Pretty.block [str implicit_name, str ".", print_method classparam]) auxs] haftmann@34294: end; haftmann@34294: in haftmann@34294: Pretty.chunks ( haftmann@34294: (Pretty.block_enclose haftmann@38809: (concat ([str "trait", (add_typarg o deresolve) name] haftmann@37384: @ the_list (print_super_classes super_classes) @ [str "{"]), str "}") haftmann@34294: (map print_classparam_val classparams)) haftmann@34294: :: map print_classparam_def classparams haftmann@34294: ) haftmann@34294: end haftmann@34294: | print_stmt (name, Code_Thingol.Classinst ((class, (tyco, vs)), haftmann@37450: (super_instances, (classparam_instances, further_classparam_instances)))) = haftmann@34294: let haftmann@37639: val tyvars = intro_tyvars vs reserved; haftmann@37639: val classtyp = (class, tyco `%% map (ITyVar o fst) vs); bulwahn@44789: fun print_classparam_instance ((classparam, const as (_, ((_, (tys, _)), _))), (thm, _)) = haftmann@37450: let wenzelm@43329: val aux_tys = Name.invent_names (snd reserved) "a" tys; haftmann@37639: val auxs = map fst aux_tys; haftmann@37450: val vars = intro_vars auxs reserved; haftmann@37639: val aux_abstr = if null auxs then [] else [enum "," "(" ")" haftmann@37639: (map (fn (aux, ty) => constraint ((str o lookup_var vars) aux) haftmann@37639: (print_typ tyvars NOBR ty)) aux_tys), str "=>"]; wenzelm@41939: in haftmann@37639: concat ([str "val", print_method classparam, str "="] haftmann@37639: @ aux_abstr @| print_app tyvars false (SOME thm) vars NOBR haftmann@37639: (const, map (IVar o SOME) auxs)) haftmann@37450: end; haftmann@37639: in haftmann@37639: Pretty.block_enclose (concat [str "implicit def", haftmann@37639: constraint (print_context tyvars vs name) (print_dicttyp tyvars classtyp), haftmann@37639: str "=", str "new", print_dicttyp tyvars classtyp, str "{"], str "}") haftmann@37639: (map print_classparam_instance (classparam_instances @ further_classparam_instances)) haftmann@37639: end; haftmann@34294: in print_stmt end; haftmann@34294: haftmann@38779: fun scala_program_of_program labelled_name reserved module_alias program = haftmann@34294: let haftmann@38809: fun namify_module name_fragment ((nsp_class, nsp_object), nsp_common) = haftmann@38809: let haftmann@38809: val declare = Name.declare name_fragment; haftmann@38809: in (name_fragment, ((declare nsp_class, declare nsp_object), declare nsp_common)) end; haftmann@38769: fun namify_class base ((nsp_class, nsp_object), nsp_common) = haftmann@38769: let wenzelm@43326: val (base', nsp_class') = Name.variant base nsp_class haftmann@38769: in (base', ((nsp_class', nsp_object), Name.declare base' nsp_common)) end; haftmann@38769: fun namify_object base ((nsp_class, nsp_object), nsp_common) = haftmann@38769: let wenzelm@43326: val (base', nsp_object') = Name.variant base nsp_object haftmann@38769: in (base', ((nsp_class, nsp_object'), Name.declare base' nsp_common)) end; haftmann@38769: fun namify_common upper base ((nsp_class, nsp_object), nsp_common) = haftmann@38769: let haftmann@38769: val (base', nsp_common') = wenzelm@43326: Name.variant (if upper then first_upper base else base) nsp_common haftmann@38769: in haftmann@38769: (base', haftmann@38769: ((Name.declare base' nsp_class, Name.declare base' nsp_object), nsp_common')) haftmann@38769: end; haftmann@38809: fun namify_stmt (Code_Thingol.Fun _) = namify_object haftmann@38809: | namify_stmt (Code_Thingol.Datatype _) = namify_class haftmann@38809: | namify_stmt (Code_Thingol.Datatypecons _) = namify_common true haftmann@38809: | namify_stmt (Code_Thingol.Class _) = namify_class haftmann@38809: | namify_stmt (Code_Thingol.Classrel _) = namify_object haftmann@38809: | namify_stmt (Code_Thingol.Classparam _) = namify_object haftmann@38809: | namify_stmt (Code_Thingol.Classinst _) = namify_common false; haftmann@38970: fun memorize_implicits name = haftmann@38769: let haftmann@38970: fun is_classinst stmt = case stmt haftmann@38970: of Code_Thingol.Classinst _ => true haftmann@38970: | _ => false; haftmann@38970: val implicits = filter (is_classinst o Graph.get_node program) wenzelm@44338: (Graph.immediate_succs program name); haftmann@38970: in union (op =) implicits end; haftmann@39059: fun modify_stmt (_, Code_Thingol.Fun (_, (_, SOME _))) = NONE haftmann@39059: | modify_stmt (_, Code_Thingol.Datatypecons _) = NONE haftmann@39024: | modify_stmt (_, Code_Thingol.Classrel _) = NONE haftmann@39024: | modify_stmt (_, Code_Thingol.Classparam _) = NONE haftmann@39024: | modify_stmt (_, stmt) = SOME stmt; haftmann@38970: in wenzelm@41939: Code_Namespace.hierarchical_program labelled_name wenzelm@41939: { module_alias = module_alias, reserved = reserved, wenzelm@41939: empty_nsp = ((reserved, reserved), reserved), namify_module = namify_module, wenzelm@41939: namify_stmt = namify_stmt, cyclic_modules = true, empty_data = [], wenzelm@41939: memorize_data = memorize_implicits, modify_stmts = map modify_stmt } program haftmann@38970: end; haftmann@34294: haftmann@38928: fun serialize_scala { labelled_name, reserved_syms, includes, haftmann@41343: module_alias, class_syntax, tyco_syntax, const_syntax } program = haftmann@34294: let haftmann@38769: haftmann@38809: (* build program *) haftmann@39147: val { deresolver, hierarchical_program = scala_program } = haftmann@39030: scala_program_of_program labelled_name (Name.make_context reserved_syms) module_alias program; haftmann@38769: haftmann@38769: (* print statements *) haftmann@37639: fun lookup_constr tyco constr = case Graph.get_node program tyco haftmann@37639: of Code_Thingol.Datatype (_, (_, constrs)) => haftmann@37639: the (AList.lookup (op = o apsnd fst) constrs constr); haftmann@37639: fun classparams_of_class class = case Graph.get_node program class haftmann@37639: of Code_Thingol.Class (_, (_, (_, classparams))) => classparams; haftmann@34294: fun args_num c = case Graph.get_node program c haftmann@37464: of Code_Thingol.Fun (_, (((_, ty), []), _)) => haftmann@37464: (length o fst o Code_Thingol.unfold_fun) ty haftmann@37437: | Code_Thingol.Fun (_, ((_, ((ts, _), _) :: _), _)) => length ts haftmann@37639: | Code_Thingol.Datatypecons (_, tyco) => length (lookup_constr tyco c) haftmann@34294: | Code_Thingol.Classparam (_, class) => haftmann@37639: (length o fst o Code_Thingol.unfold_fun o the o AList.lookup (op =) haftmann@37639: (classparams_of_class class)) c; haftmann@37639: fun is_singleton_constr c = case Graph.get_node program c haftmann@37639: of Code_Thingol.Datatypecons (_, tyco) => null (lookup_constr tyco c) haftmann@34294: | _ => false; haftmann@39147: fun print_stmt prefix_fragments = print_scala_stmt labelled_name haftmann@39147: tyco_syntax const_syntax (make_vars reserved_syms) args_num haftmann@39147: is_singleton_constr (deresolver prefix_fragments, deresolver []); haftmann@38769: haftmann@39147: (* print modules *) haftmann@38809: fun print_implicit prefix_fragments implicit = haftmann@38782: let haftmann@38809: val s = deresolver prefix_fragments implicit; haftmann@38782: in if length (Long_Name.explode s) = 1 then NONE else SOME (str s) end; haftmann@39147: fun print_module prefix_fragments base implicits ps = Pretty.chunks2 haftmann@39147: ([str ("object " ^ base ^ " {")] haftmann@39147: @ (case map_filter (print_implicit prefix_fragments) implicits haftmann@39147: of [] => [] | implicit_ps => (single o Pretty.block) haftmann@39147: (str "import /*implicits*/" :: Pretty.brk 1 :: commas implicit_ps)) haftmann@39147: @ ps @ [str ("} /* object " ^ base ^ " */")]); haftmann@38769: haftmann@38769: (* serialization *) haftmann@39147: val p = Pretty.chunks2 (map snd includes haftmann@39147: @ Code_Namespace.print_hierarchical { haftmann@39147: print_module = print_module, print_stmt = print_stmt, haftmann@39147: lift_markup = I } scala_program); haftmann@39056: fun write width NONE = writeln o format [] width haftmann@39056: | write width (SOME p) = File.write p o format [] width; haftmann@34294: in haftmann@39102: Code_Target.serialization write (rpair (try (deresolver [])) ooo format) p haftmann@34294: end; haftmann@34294: haftmann@38966: val serializer : Code_Target.serializer = haftmann@38966: Code_Target.parse_args (Scan.succeed ()) #> K serialize_scala; haftmann@38966: haftmann@34294: val literals = let haftmann@37224: fun char_scala c = if c = "'" then "\\'" haftmann@37224: else if c = "\"" then "\\\"" haftmann@37224: else if c = "\\" then "\\\\" haftmann@37224: else let val k = ord c haftmann@37224: in if k < 32 orelse k > 126 then "\\" ^ radixstring (8, "0", k) else c end haftmann@34944: fun numeral_scala k = if k < 0 haftmann@37958: then if k > ~ 2147483647 then "- " ^ string_of_int (~ k) haftmann@34944: else quote ("- " ^ string_of_int (~ k)) haftmann@34944: else if k <= 2147483647 then string_of_int k haftmann@34944: else quote (string_of_int k) haftmann@34294: in Literals { haftmann@34294: literal_char = Library.enclose "'" "'" o char_scala, haftmann@34294: literal_string = quote o translate_string char_scala, haftmann@34944: literal_numeral = fn k => "BigInt(" ^ numeral_scala k ^ ")", haftmann@38968: literal_positive_numeral = fn k => "Nat(" ^ numeral_scala k ^ ")", haftmann@38968: literal_alternative_numeral = fn k => "Natural(" ^ numeral_scala k ^ ")", haftmann@37958: literal_naive_numeral = fn k => "BigInt(" ^ numeral_scala k ^ ")", haftmann@34888: literal_list = fn [] => str "Nil" | ps => Pretty.block [str "List", enum "," "(" ")" ps], haftmann@34294: infix_cons = (6, "::") haftmann@34294: } end; haftmann@34294: haftmann@34294: haftmann@34294: (** Isar setup **) haftmann@34294: haftmann@34294: val setup = haftmann@37821: Code_Target.add_target haftmann@38966: (target, { serializer = serializer, literals = literals, wenzelm@41939: check = { env_var = "SCALA_HOME", wenzelm@41939: make_destination = fn p => Path.append p (Path.explode "ROOT.scala"), wenzelm@41940: make_command = fn _ => wenzelm@41940: "env JAVA_OPTS='-Xms128m -Xmx512m -Xss2m' \"$SCALA_HOME/bin/scalac\" ROOT.scala" } }) haftmann@38923: #> Code_Target.add_tyco_syntax target "fun" haftmann@37464: (SOME (2, fn print_typ => fn fxy => fn [ty1, ty2] => haftmann@37464: brackify_infix (1, R) fxy ( haftmann@37464: print_typ BR ty1 (*product type vs. tupled arguments!*), haftmann@37464: str "=>", haftmann@37464: print_typ (INFX (1, R)) ty2 haftmann@37464: ))) haftmann@34294: #> fold (Code_Target.add_reserved target) [ haftmann@34294: "abstract", "case", "catch", "class", "def", "do", "else", "extends", "false", haftmann@34294: "final", "finally", "for", "forSome", "if", "implicit", "import", "lazy", haftmann@34294: "match", "new", "null", "object", "override", "package", "private", "protected", haftmann@34294: "requires", "return", "sealed", "super", "this", "throw", "trait", "try", haftmann@37243: "true", "type", "val", "var", "while", "with", "yield" haftmann@34294: ] haftmann@34294: #> fold (Code_Target.add_reserved target) [ haftmann@39781: "apply", "error", "scala", "BigInt", "Nil", "List" haftmann@34294: ]; haftmann@34294: haftmann@34294: end; (*struct*)