haftmann@34028: (* Title: Tools/code/code_eval.ML_ haftmann@28054: Author: Florian Haftmann, TU Muenchen haftmann@28054: haftmann@34028: Runtime services building on code generation into implementation language SML. haftmann@28054: *) haftmann@28054: haftmann@34028: signature CODE_EVAL = haftmann@28054: sig haftmann@34028: val target: string wenzelm@32740: val eval: string option -> string * (unit -> 'a) option Unsynchronized.ref haftmann@30970: -> ((term -> term) -> 'a -> 'a) -> theory -> term -> string list -> 'a haftmann@34028: val evaluation_code: theory -> string list -> string list haftmann@34028: -> string * ((string * string) list * (string * string) list) haftmann@28054: val setup: theory -> theory haftmann@28054: end; haftmann@28054: haftmann@34028: structure Code_Eval : CODE_EVAL = haftmann@28054: struct haftmann@28054: haftmann@33992: (** generic **) haftmann@33992: haftmann@34028: val target = "Eval"; haftmann@28054: haftmann@33992: val eval_struct_name = "Code" haftmann@33992: haftmann@34028: fun evaluation_code thy tycos consts = haftmann@33992: let haftmann@34028: val (consts', (naming, program)) = Code_Thingol.consts_program thy consts; haftmann@34028: val tycos' = map (the o Code_Thingol.lookup_tyco naming) tycos; haftmann@34028: val (ml_code, target_names) = Code_ML.evaluation_code_of thy target haftmann@34028: (SOME eval_struct_name) naming program (consts' @ tycos'); haftmann@34028: val (consts'', tycos'') = chop (length consts') target_names; haftmann@34028: val consts_map = map2 (fn const => fn NONE => haftmann@34028: error ("Constant " ^ (quote o Code.string_of_const thy) const haftmann@34028: ^ "\nhas a user-defined serialization") haftmann@34028: | SOME const'' => (const, const'')) consts consts'' haftmann@34028: val tycos_map = map2 (fn tyco => fn NONE => haftmann@34028: error ("Type " ^ (quote o Sign.extern_type thy) tyco haftmann@34028: ^ "\nhas a user-defined serialization") haftmann@34028: | SOME tyco'' => (tyco, tyco'')) tycos tycos''; haftmann@34028: in (ml_code, (tycos_map, consts_map)) end; haftmann@28054: haftmann@28054: haftmann@34028: (** evaluation **) haftmann@28054: haftmann@30970: fun eval some_target reff postproc thy t args = haftmann@28054: let wenzelm@28275: val ctxt = ProofContext.init thy; haftmann@31063: fun evaluator naming program ((_, (_, ty)), t) deps = haftmann@28054: let haftmann@28054: val _ = if Code_Thingol.contains_dictvar t then haftmann@28724: error "Term to be evaluated contains free dictionaries" else (); haftmann@28663: val value_name = "Value.VALUE.value" haftmann@28054: val program' = program haftmann@28663: |> Graph.new_node (value_name, haftmann@28663: Code_Thingol.Fun (Term.dummy_patternN, (([], ty), [(([], t), (Drule.dummy_thm, true))]))) haftmann@28663: |> fold (curry Graph.add_edge value_name) deps; haftmann@34028: val (value_code, [SOME value_name']) = Code_ML.evaluation_code_of thy haftmann@34028: (the_default target some_target) NONE naming program' [value_name]; haftmann@28054: val sml_code = "let\n" ^ value_code ^ "\nin " ^ value_name' haftmann@28054: ^ space_implode " " (map (enclose "(" ")") args) ^ " end"; wenzelm@30672: in ML_Context.evaluate ctxt false reff sml_code end; haftmann@32123: in Code_Thingol.eval thy postproc evaluator t end; haftmann@28054: haftmann@28054: haftmann@34028: (** instrumentalization by antiquotation **) haftmann@28054: haftmann@28054: local haftmann@28054: wenzelm@33519: structure CodeAntiqData = Proof_Data haftmann@28054: ( haftmann@30962: type T = (string list * string list) * (bool * (string haftmann@30962: * (string * ((string * string) list * (string * string) list)) lazy)); haftmann@30962: fun init _ = (([], []), (true, ("", Lazy.value ("", ([], []))))); haftmann@28054: ); haftmann@28054: haftmann@28054: val is_first_occ = fst o snd o CodeAntiqData.get; haftmann@28054: haftmann@30962: fun register_code new_tycos new_consts ctxt = haftmann@28054: let haftmann@30962: val ((tycos, consts), (_, (struct_name, _))) = CodeAntiqData.get ctxt; haftmann@30962: val tycos' = fold (insert (op =)) new_tycos tycos; haftmann@30962: val consts' = fold (insert (op =)) new_consts consts; haftmann@28054: val (struct_name', ctxt') = if struct_name = "" haftmann@33992: then ML_Antiquote.variant eval_struct_name ctxt haftmann@28054: else (struct_name, ctxt); haftmann@34028: val acc_code = Lazy.lazy (fn () => evaluation_code (ProofContext.theory_of ctxt) tycos' consts'); haftmann@30962: in CodeAntiqData.put ((tycos', consts'), (false, (struct_name', acc_code))) ctxt' end; haftmann@30962: haftmann@30962: fun register_const const = register_code [] [const]; haftmann@28054: haftmann@30962: fun register_datatype tyco constrs = register_code [tyco] constrs; haftmann@30962: haftmann@30962: fun print_const const all_struct_name tycos_map consts_map = haftmann@30962: (Long_Name.append all_struct_name o the o AList.lookup (op =) consts_map) const; haftmann@30962: haftmann@30962: fun print_datatype tyco constrs all_struct_name tycos_map consts_map = haftmann@28054: let haftmann@30962: val upperize = implode o nth_map 0 Symbol.to_ascii_upper o explode; haftmann@30962: fun check_base name name'' = haftmann@30962: if upperize (Long_Name.base_name name) = upperize name'' haftmann@30962: then () else error ("Name as printed " ^ quote name'' haftmann@30962: ^ "\ndiffers from logical base name " ^ quote (Long_Name.base_name name) ^ "; sorry."); haftmann@30962: val tyco'' = (the o AList.lookup (op =) tycos_map) tyco; haftmann@30962: val constrs'' = map (the o AList.lookup (op =) consts_map) constrs; haftmann@30962: val _ = check_base tyco tyco''; haftmann@30962: val _ = map2 check_base constrs constrs''; haftmann@30962: in "datatype " ^ tyco'' ^ " = datatype " ^ Long_Name.append all_struct_name tyco'' end; haftmann@30962: haftmann@30962: fun print_code struct_name is_first print_it ctxt = haftmann@30962: let haftmann@30962: val (_, (_, (struct_code_name, acc_code))) = CodeAntiqData.get ctxt; haftmann@33992: val (ml_code, (tycos_map, consts_map)) = Lazy.force acc_code; haftmann@33992: val ml_code = if is_first then ml_code haftmann@28054: else ""; haftmann@30962: val all_struct_name = Long_Name.append struct_name struct_code_name; haftmann@30962: in (ml_code, print_it all_struct_name tycos_map consts_map) end; haftmann@28054: haftmann@28054: in haftmann@28054: haftmann@28054: fun ml_code_antiq raw_const {struct_name, background} = haftmann@28054: let haftmann@31156: val const = Code.check_const (ProofContext.theory_of background) raw_const; haftmann@28054: val is_first = is_first_occ background; haftmann@28054: val background' = register_const const background; haftmann@30962: in (print_code struct_name is_first (print_const const), background') end; haftmann@30962: haftmann@30962: fun ml_code_datatype_antiq (raw_tyco, raw_constrs) {struct_name, background} = haftmann@30962: let haftmann@30962: val thy = ProofContext.theory_of background; haftmann@30962: val tyco = Sign.intern_type thy raw_tyco; haftmann@31156: val constrs = map (Code.check_const thy) raw_constrs; haftmann@30962: val constrs' = (map fst o snd o Code.get_datatype thy) tyco; haftmann@33038: val _ = if eq_set (op =) (constrs, constrs') then () haftmann@30962: else error ("Type " ^ quote tyco ^ ": given constructors diverge from real constructors") haftmann@30962: val is_first = is_first_occ background; haftmann@30962: val background' = register_datatype tyco constrs background; haftmann@30962: in (print_code struct_name is_first (print_datatype tyco constrs), background') end; haftmann@28054: haftmann@28054: end; (*local*) haftmann@28054: haftmann@28054: haftmann@28054: (** Isar setup **) haftmann@28054: haftmann@28054: val _ = ML_Context.add_antiq "code" (fn _ => Args.term >> ml_code_antiq); haftmann@30962: val _ = ML_Context.add_antiq "code_datatype" (fn _ => haftmann@30962: (Args.tyname --| Scan.lift (Args.$$$ "=") haftmann@30962: -- (Args.term ::: Scan.repeat (Scan.lift (Args.$$$ "|") |-- Args.term))) haftmann@30962: >> ml_code_datatype_antiq); haftmann@28054: haftmann@34028: val setup = Code_Target.extend_target (target, (Code_ML.target_SML, K I)); haftmann@28054: haftmann@28054: end; (*struct*)