src/Tools/code/code_ml.ML
author haftmann
Wed May 06 16:01:06 2009 +0200 (2009-05-06)
changeset 31049 396d4d6a1594
parent 30970 3fe2e418a071
child 31054 841c9f67f9e7
permissions -rw-r--r--
explicit type arguments in constants
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(*  Title:      Tools/code/code_ml.ML
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    Author:     Florian Haftmann, TU Muenchen
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Serializer for SML and OCaml.
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*)
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signature CODE_ML =
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sig
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  val eval: string option -> string * (unit -> 'a) option ref
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    -> ((term -> term) -> 'a -> 'a) -> theory -> term -> string list -> 'a
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  val target_Eval: string
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  val setup: theory -> theory
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end;
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structure Code_ML : CODE_ML =
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struct
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open Basic_Code_Thingol;
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open Code_Printer;
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infixr 5 @@;
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infixr 5 @|;
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val target_SML = "SML";
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val target_OCaml = "OCaml";
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val target_Eval = "Eval";
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datatype ml_stmt =
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    MLExc of string * int
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  | MLVal of string * ((typscheme * iterm) * (thm * bool))
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  | MLFuns of (string * (typscheme * ((iterm list * iterm) * (thm * bool)) list)) list * string list
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  | MLDatas of (string * ((vname * sort) list * (string * itype list) list)) list
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  | MLClass of string * (vname * ((class * string) list * (string * itype) list))
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  | MLClassinst of string * ((class * (string * (vname * sort) list))
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        * ((class * (string * (string * dict list list))) list
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      * ((string * const) * (thm * bool)) list));
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fun stmt_names_of (MLExc (name, _)) = [name]
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  | stmt_names_of (MLVal (name, _)) = [name]
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  | stmt_names_of (MLFuns (fs, _)) = map fst fs
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  | stmt_names_of (MLDatas ds) = map fst ds
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  | stmt_names_of (MLClass (name, _)) = [name]
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  | stmt_names_of (MLClassinst (name, _)) = [name];
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(** SML serailizer **)
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fun pr_sml_stmt naming labelled_name syntax_tyco syntax_const reserved_names deresolve is_cons =
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  let
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    val pr_label_classrel = translate_string (fn "." => "__" | c => c)
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      o Long_Name.qualifier;
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    val pr_label_classparam = Long_Name.base_name o Long_Name.qualifier;
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    fun pr_dicts fxy ds =
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      let
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        fun pr_dictvar (v, (_, 1)) = Code_Printer.first_upper v ^ "_"
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          | pr_dictvar (v, (i, _)) = Code_Printer.first_upper v ^ string_of_int (i+1) ^ "_";
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        fun pr_proj [] p =
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              p
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          | pr_proj [p'] p =
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              brackets [p', p]
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          | pr_proj (ps as _ :: _) p =
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              brackets [Pretty.enum " o" "(" ")" ps, p];
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        fun pr_dict fxy (DictConst (inst, dss)) =
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              brackify fxy ((str o deresolve) inst :: map (pr_dicts BR) dss)
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          | pr_dict fxy (DictVar (classrels, v)) =
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              pr_proj (map (str o deresolve) classrels) ((str o pr_dictvar) v)
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      in case ds
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       of [] => str "()"
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        | [d] => pr_dict fxy d
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        | _ :: _ => (Pretty.list "(" ")" o map (pr_dict NOBR)) ds
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      end;
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    fun pr_tyvar_dicts vs =
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      vs
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      |> map (fn (v, sort) => map_index (fn (i, _) =>
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           DictVar ([], (v, (i, length sort)))) sort)
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      |> map (pr_dicts BR);
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    fun pr_tycoexpr fxy (tyco, tys) =
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      let
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        val tyco' = (str o deresolve) tyco
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      in case map (pr_typ BR) tys
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       of [] => tyco'
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        | [p] => Pretty.block [p, Pretty.brk 1, tyco']
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        | (ps as _::_) => Pretty.block [Pretty.list "(" ")" ps, Pretty.brk 1, tyco']
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      end
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    and pr_typ fxy (tyco `%% tys) = (case syntax_tyco tyco
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         of NONE => pr_tycoexpr fxy (tyco, tys)
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          | SOME (i, pr) => pr pr_typ fxy tys)
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      | pr_typ fxy (ITyVar v) = str ("'" ^ v);
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    fun pr_term is_closure thm vars fxy (IConst c) =
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          pr_app is_closure thm vars fxy (c, [])
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      | pr_term is_closure thm vars fxy (IVar v) =
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          str (Code_Printer.lookup_var vars v)
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      | pr_term is_closure thm vars fxy (t as t1 `$ t2) =
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          (case Code_Thingol.unfold_const_app t
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           of SOME c_ts => pr_app is_closure thm vars fxy c_ts
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            | NONE => brackify fxy
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               [pr_term is_closure thm vars NOBR t1, pr_term is_closure thm vars BR t2])
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      | pr_term is_closure thm vars fxy (t as _ `|-> _) =
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          let
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            val (binds, t') = Code_Thingol.unfold_abs t;
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            fun pr ((v, pat), ty) =
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              pr_bind is_closure thm NOBR ((SOME v, pat), ty)
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              #>> (fn p => concat [str "fn", p, str "=>"]);
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            val (ps, vars') = fold_map pr binds vars;
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          in brackets (ps @ [pr_term is_closure thm vars' NOBR t']) end
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      | pr_term is_closure thm vars fxy (ICase (cases as (_, t0))) =
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          (case Code_Thingol.unfold_const_app t0
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           of SOME (c_ts as ((c, _), _)) => if is_none (syntax_const c)
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                then pr_case is_closure thm vars fxy cases
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                else pr_app is_closure thm vars fxy c_ts
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            | NONE => pr_case is_closure thm vars fxy cases)
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    and pr_app' is_closure thm vars (app as ((c, ((_, iss), tys)), ts)) =
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      if is_cons c then
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        let
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          val k = length tys
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        in if k < 2 then 
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          (str o deresolve) c :: map (pr_term is_closure thm vars BR) ts
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        else if k = length ts then
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          [(str o deresolve) c, Pretty.enum "," "(" ")" (map (pr_term is_closure thm vars NOBR) ts)]
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        else [pr_term is_closure thm vars BR (Code_Thingol.eta_expand k app)] end
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      else if is_closure c
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        then (str o deresolve) c @@ str "()"
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      else
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        (str o deresolve) c
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          :: (map (pr_dicts BR) o filter_out null) iss @ map (pr_term is_closure thm vars BR) ts
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    and pr_app is_closure thm vars = gen_pr_app (pr_app' is_closure) (pr_term is_closure)
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      syntax_const naming thm vars
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    and pr_bind' ((NONE, NONE), _) = str "_"
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      | pr_bind' ((SOME v, NONE), _) = str v
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      | pr_bind' ((NONE, SOME p), _) = p
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      | pr_bind' ((SOME v, SOME p), _) = concat [str v, str "as", p]
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    and pr_bind is_closure = gen_pr_bind pr_bind' (pr_term is_closure)
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    and pr_case is_closure thm vars fxy (cases as ((_, [_]), _)) =
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          let
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            val (binds, body) = Code_Thingol.unfold_let (ICase cases);
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            fun pr ((pat, ty), t) vars =
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              vars
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              |> pr_bind is_closure thm NOBR ((NONE, SOME pat), ty)
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              |>> (fn p => semicolon [str "val", p, str "=", pr_term is_closure thm vars NOBR t])
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            val (ps, vars') = fold_map pr binds vars;
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          in
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            Pretty.chunks [
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              [str ("let"), Pretty.fbrk, Pretty.chunks ps] |> Pretty.block,
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              [str ("in"), Pretty.fbrk, pr_term is_closure thm vars' NOBR body] |> Pretty.block,
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              str ("end")
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            ]
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          end
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      | pr_case is_closure thm vars fxy (((t, ty), clause :: clauses), _) =
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          let
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            fun pr delim (pat, body) =
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              let
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                val (p, vars') = pr_bind is_closure thm NOBR ((NONE, SOME pat), ty) vars;
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              in
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                concat [str delim, p, str "=>", pr_term is_closure thm vars' NOBR body]
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              end;
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          in
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            (Pretty.enclose "(" ")" o single o brackify fxy) (
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              str "case"
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              :: pr_term is_closure thm vars NOBR t
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              :: pr "of" clause
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              :: map (pr "|") clauses
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            )
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          end
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      | pr_case is_closure thm vars fxy ((_, []), _) = str "raise Fail \"empty case\"";
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    fun pr_stmt (MLExc (name, n)) =
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          let
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            val exc_str =
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              (ML_Syntax.print_string o Long_Name.base_name o Long_Name.qualifier) name;
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          in
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            concat (
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              str (if n = 0 then "val" else "fun")
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              :: (str o deresolve) name
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              :: map str (replicate n "_")
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              @ str "="
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              :: str "raise"
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              :: str "(Fail"
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              @@ str (exc_str ^ ")")
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            )
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          end
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      | pr_stmt (MLVal (name, (((vs, ty), t), (thm, _)))) =
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          let
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            val consts = map_filter
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              (fn c => if (is_some o syntax_const) c
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                then NONE else (SOME o Long_Name.base_name o deresolve) c)
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                (Code_Thingol.fold_constnames (insert (op =)) t []);
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            val vars = reserved_names
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              |> Code_Printer.intro_vars consts;
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          in
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            concat [
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              str "val",
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              (str o deresolve) name,
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              str ":",
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              pr_typ NOBR ty,
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              str "=",
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              pr_term (K false) thm vars NOBR t
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            ]
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          end
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      | pr_stmt (MLFuns (funn :: funns, pseudo_funs)) =
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          let
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            fun pr_funn definer (name, ((vs, ty), eqs as eq :: eqs')) =
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              let
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                val vs_dict = filter_out (null o snd) vs;
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                val shift = if null eqs' then I else
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                  map (Pretty.block o single o Pretty.block o single);
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                fun pr_eq definer ((ts, t), (thm, _)) =
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                  let
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                    val consts = map_filter
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                      (fn c => if (is_some o syntax_const) c
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                        then NONE else (SOME o Long_Name.base_name o deresolve) c)
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                        ((fold o Code_Thingol.fold_constnames) (insert (op =)) (t :: ts) []);
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                    val vars = reserved_names
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                      |> Code_Printer.intro_vars consts
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                      |> Code_Printer.intro_vars ((fold o Code_Thingol.fold_unbound_varnames)
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                           (insert (op =)) ts []);
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                  in
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                    concat (
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                      str definer
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                      :: (str o deresolve) name
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                      :: (if member (op =) pseudo_funs name then [str "()"]
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                          else pr_tyvar_dicts vs_dict
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                            @ map (pr_term (member (op =) pseudo_funs) thm vars BR) ts)
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                      @ str "="
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                      @@ pr_term (member (op =) pseudo_funs) thm vars NOBR t
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                    )
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                  end
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              in
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                (Pretty.block o Pretty.fbreaks o shift) (
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                  pr_eq definer eq
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                  :: map (pr_eq "|") eqs'
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                )
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              end;
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            fun pr_pseudo_fun name = concat [
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                str "val",
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                (str o deresolve) name,
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                str "=",
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                (str o deresolve) name,
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                str "();"
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              ];
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            val (ps, p) = split_last (pr_funn "fun" funn :: map (pr_funn "and") funns);
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            val pseudo_ps = map pr_pseudo_fun pseudo_funs;
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          in Pretty.chunks (ps @ Pretty.block ([p, str ";"]) :: pseudo_ps) end
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     | pr_stmt (MLDatas (datas as (data :: datas'))) =
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          let
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            fun pr_co (co, []) =
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                  str (deresolve co)
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              | pr_co (co, tys) =
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                  concat [
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                    str (deresolve co),
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                    str "of",
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                    Pretty.enum " *" "" "" (map (pr_typ (INFX (2, X))) tys)
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                  ];
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            fun pr_data definer (tyco, (vs, [])) =
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                  concat (
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                    str definer
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                    :: pr_tycoexpr NOBR (tyco, map (ITyVar o fst) vs)
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                    :: str "="
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                    @@ str "EMPTY__" 
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                  )
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              | pr_data definer (tyco, (vs, cos)) =
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                  concat (
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                    str definer
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                    :: pr_tycoexpr NOBR (tyco, map (ITyVar o fst) vs)
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                    :: str "="
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                    :: separate (str "|") (map pr_co cos)
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                  );
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            val (ps, p) = split_last
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              (pr_data "datatype" data :: map (pr_data "and") datas');
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          in Pretty.chunks (ps @| Pretty.block ([p, str ";"])) end
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     | pr_stmt (MLClass (class, (v, (superclasses, classparams)))) =
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          let
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            val w = Code_Printer.first_upper v ^ "_";
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            fun pr_superclass_field (class, classrel) =
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              (concat o map str) [
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                pr_label_classrel classrel, ":", "'" ^ v, deresolve class
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              ];
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            fun pr_classparam_field (classparam, ty) =
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              concat [
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                (str o pr_label_classparam) classparam, str ":", pr_typ NOBR ty
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              ];
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            fun pr_classparam_proj (classparam, _) =
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              semicolon [
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                str "fun",
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                (str o deresolve) classparam,
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                Pretty.enclose "(" ")" [str (w ^ ":'" ^ v ^ " " ^ deresolve class)],
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                str "=",
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                str ("#" ^ pr_label_classparam classparam),
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                str w
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              ];
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            fun pr_superclass_proj (_, classrel) =
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              semicolon [
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                str "fun",
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                (str o deresolve) classrel,
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                Pretty.enclose "(" ")" [str (w ^ ":'" ^ v ^ " " ^ deresolve class)],
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                str "=",
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                str ("#" ^ pr_label_classrel classrel),
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                str w
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              ];
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          in
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            Pretty.chunks (
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              concat [
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                str ("type '" ^ v),
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                (str o deresolve) class,
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                str "=",
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                Pretty.enum "," "{" "};" (
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                  map pr_superclass_field superclasses @ map pr_classparam_field classparams
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                )
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              ]
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              :: map pr_superclass_proj superclasses
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              @ map pr_classparam_proj classparams
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            )
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          end
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     | pr_stmt (MLClassinst (inst, ((class, (tyco, arity)), (superarities, classparam_insts)))) =
haftmann@28054
   313
          let
haftmann@28054
   314
            fun pr_superclass (_, (classrel, dss)) =
haftmann@28054
   315
              concat [
haftmann@28054
   316
                (str o pr_label_classrel) classrel,
haftmann@28054
   317
                str "=",
haftmann@28054
   318
                pr_dicts NOBR [DictConst dss]
haftmann@28054
   319
              ];
haftmann@28350
   320
            fun pr_classparam ((classparam, c_inst), (thm, _)) =
haftmann@28054
   321
              concat [
haftmann@28054
   322
                (str o pr_label_classparam) classparam,
haftmann@28054
   323
                str "=",
haftmann@29175
   324
                pr_app (K false) thm reserved_names NOBR (c_inst, [])
haftmann@28054
   325
              ];
haftmann@28054
   326
          in
haftmann@28054
   327
            semicolon ([
haftmann@28054
   328
              str (if null arity then "val" else "fun"),
haftmann@28054
   329
              (str o deresolve) inst ] @
haftmann@28054
   330
              pr_tyvar_dicts arity @ [
haftmann@28054
   331
              str "=",
haftmann@28054
   332
              Pretty.enum "," "{" "}"
haftmann@28054
   333
                (map pr_superclass superarities @ map pr_classparam classparam_insts),
haftmann@28054
   334
              str ":",
haftmann@28054
   335
              pr_tycoexpr NOBR (class, [tyco `%% map (ITyVar o fst) arity])
haftmann@28054
   336
            ])
haftmann@28054
   337
          end;
haftmann@28054
   338
  in pr_stmt end;
haftmann@28054
   339
haftmann@28054
   340
fun pr_sml_module name content =
haftmann@28054
   341
  Pretty.chunks (
haftmann@28054
   342
    str ("structure " ^ name ^ " = ")
haftmann@28054
   343
    :: str "struct"
haftmann@28054
   344
    :: str ""
haftmann@28054
   345
    :: content
haftmann@28054
   346
    @ str ""
haftmann@28054
   347
    @@ str ("end; (*struct " ^ name ^ "*)")
haftmann@28054
   348
  );
haftmann@28054
   349
haftmann@28064
   350
val literals_sml = Literals {
haftmann@28064
   351
  literal_char = prefix "#" o quote o ML_Syntax.print_char,
haftmann@28064
   352
  literal_string = quote o translate_string ML_Syntax.print_char,
haftmann@28064
   353
  literal_numeral = fn unbounded => fn k =>
haftmann@28064
   354
    if unbounded then "(" ^ string_of_int k ^ " : IntInf.int)"
haftmann@28064
   355
    else string_of_int k,
haftmann@28064
   356
  literal_list = Pretty.enum "," "[" "]",
haftmann@28064
   357
  infix_cons = (7, "::")
haftmann@28064
   358
};
haftmann@28064
   359
haftmann@28054
   360
haftmann@28054
   361
(** OCaml serializer **)
haftmann@28054
   362
haftmann@28663
   363
fun pr_ocaml_stmt naming labelled_name syntax_tyco syntax_const reserved_names deresolve is_cons =
haftmann@28054
   364
  let
haftmann@28054
   365
    fun pr_dicts fxy ds =
haftmann@28054
   366
      let
haftmann@30648
   367
        fun pr_dictvar (v, (_, 1)) = "_" ^ Code_Printer.first_upper v
haftmann@30648
   368
          | pr_dictvar (v, (i, _)) = "_" ^ Code_Printer.first_upper v ^ string_of_int (i+1);
haftmann@28054
   369
        fun pr_proj ps p =
haftmann@28054
   370
          fold_rev (fn p2 => fn p1 => Pretty.block [p1, str ".", str p2]) ps p
haftmann@28054
   371
        fun pr_dict fxy (DictConst (inst, dss)) =
haftmann@28054
   372
              brackify fxy ((str o deresolve) inst :: map (pr_dicts BR) dss)
haftmann@28054
   373
          | pr_dict fxy (DictVar (classrels, v)) =
haftmann@28054
   374
              pr_proj (map deresolve classrels) ((str o pr_dictvar) v)
haftmann@28054
   375
      in case ds
haftmann@28054
   376
       of [] => str "()"
haftmann@28054
   377
        | [d] => pr_dict fxy d
haftmann@28054
   378
        | _ :: _ => (Pretty.list "(" ")" o map (pr_dict NOBR)) ds
haftmann@28054
   379
      end;
haftmann@28054
   380
    fun pr_tyvar_dicts vs =
haftmann@28054
   381
      vs
haftmann@28054
   382
      |> map (fn (v, sort) => map_index (fn (i, _) =>
haftmann@28054
   383
           DictVar ([], (v, (i, length sort)))) sort)
haftmann@28054
   384
      |> map (pr_dicts BR);
haftmann@28054
   385
    fun pr_tycoexpr fxy (tyco, tys) =
haftmann@28054
   386
      let
haftmann@28054
   387
        val tyco' = (str o deresolve) tyco
haftmann@28054
   388
      in case map (pr_typ BR) tys
haftmann@28054
   389
       of [] => tyco'
haftmann@28054
   390
        | [p] => Pretty.block [p, Pretty.brk 1, tyco']
haftmann@28054
   391
        | (ps as _::_) => Pretty.block [Pretty.list "(" ")" ps, Pretty.brk 1, tyco']
haftmann@28054
   392
      end
haftmann@28054
   393
    and pr_typ fxy (tyco `%% tys) = (case syntax_tyco tyco
haftmann@28054
   394
         of NONE => pr_tycoexpr fxy (tyco, tys)
haftmann@28054
   395
          | SOME (i, pr) => pr pr_typ fxy tys)
haftmann@28054
   396
      | pr_typ fxy (ITyVar v) = str ("'" ^ v);
haftmann@29175
   397
    fun pr_term is_closure thm vars fxy (IConst c) =
haftmann@29175
   398
          pr_app is_closure thm vars fxy (c, [])
haftmann@29175
   399
      | pr_term is_closure thm vars fxy (IVar v) =
haftmann@30648
   400
          str (Code_Printer.lookup_var vars v)
haftmann@29175
   401
      | pr_term is_closure thm vars fxy (t as t1 `$ t2) =
haftmann@28054
   402
          (case Code_Thingol.unfold_const_app t
haftmann@29175
   403
           of SOME c_ts => pr_app is_closure thm vars fxy c_ts
haftmann@28054
   404
            | NONE =>
haftmann@29175
   405
                brackify fxy [pr_term is_closure thm vars NOBR t1, pr_term is_closure thm vars BR t2])
haftmann@29175
   406
      | pr_term is_closure thm vars fxy (t as _ `|-> _) =
haftmann@28054
   407
          let
haftmann@28054
   408
            val (binds, t') = Code_Thingol.unfold_abs t;
haftmann@29175
   409
            fun pr ((v, pat), ty) = pr_bind is_closure thm BR ((SOME v, pat), ty);
haftmann@28054
   410
            val (ps, vars') = fold_map pr binds vars;
haftmann@29175
   411
          in brackets (str "fun" :: ps @ str "->" @@ pr_term is_closure thm vars' NOBR t') end
haftmann@29175
   412
      | pr_term is_closure thm vars fxy (ICase (cases as (_, t0))) = (case Code_Thingol.unfold_const_app t0
haftmann@28054
   413
           of SOME (c_ts as ((c, _), _)) => if is_none (syntax_const c)
haftmann@29175
   414
                then pr_case is_closure thm vars fxy cases
haftmann@29175
   415
                else pr_app is_closure thm vars fxy c_ts
haftmann@29175
   416
            | NONE => pr_case is_closure thm vars fxy cases)
haftmann@31049
   417
    and pr_app' is_closure thm vars (app as ((c, ((_, iss), tys)), ts)) =
haftmann@28054
   418
      if is_cons c then
haftmann@28054
   419
        if length tys = length ts
haftmann@28054
   420
        then case ts
haftmann@28054
   421
         of [] => [(str o deresolve) c]
haftmann@29175
   422
          | [t] => [(str o deresolve) c, pr_term is_closure thm vars BR t]
haftmann@28054
   423
          | _ => [(str o deresolve) c, Pretty.enum "," "(" ")"
haftmann@29175
   424
                    (map (pr_term is_closure thm vars NOBR) ts)]
haftmann@29175
   425
        else [pr_term is_closure thm vars BR (Code_Thingol.eta_expand (length tys) app)]
haftmann@29175
   426
      else if is_closure c
haftmann@29175
   427
        then (str o deresolve) c @@ str "()"
haftmann@28054
   428
      else (str o deresolve) c
haftmann@29175
   429
        :: ((map (pr_dicts BR) o filter_out null) iss @ map (pr_term is_closure thm vars BR) ts)
haftmann@29175
   430
    and pr_app is_closure = gen_pr_app (pr_app' is_closure) (pr_term is_closure)
haftmann@29175
   431
      syntax_const naming
haftmann@28054
   432
    and pr_bind' ((NONE, NONE), _) = str "_"
haftmann@28054
   433
      | pr_bind' ((SOME v, NONE), _) = str v
haftmann@28054
   434
      | pr_bind' ((NONE, SOME p), _) = p
haftmann@28054
   435
      | pr_bind' ((SOME v, SOME p), _) = brackets [p, str "as", str v]
haftmann@29175
   436
    and pr_bind is_closure = gen_pr_bind pr_bind' (pr_term is_closure)
haftmann@29175
   437
    and pr_case is_closure thm vars fxy (cases as ((_, [_]), _)) =
haftmann@28054
   438
          let
haftmann@29952
   439
            val (binds, body) = Code_Thingol.unfold_let (ICase cases);
haftmann@28054
   440
            fun pr ((pat, ty), t) vars =
haftmann@28054
   441
              vars
haftmann@29175
   442
              |> pr_bind is_closure thm NOBR ((NONE, SOME pat), ty)
haftmann@28054
   443
              |>> (fn p => concat
haftmann@29175
   444
                  [str "let", p, str "=", pr_term is_closure thm vars NOBR t, str "in"])
haftmann@28054
   445
            val (ps, vars') = fold_map pr binds vars;
haftmann@29952
   446
          in Pretty.chunks (ps @| pr_term is_closure thm vars' NOBR body) end
haftmann@29952
   447
      | pr_case is_closure thm vars fxy (((t, ty), clause :: clauses), _) =
haftmann@28054
   448
          let
haftmann@29952
   449
            fun pr delim (pat, body) =
haftmann@28054
   450
              let
haftmann@29175
   451
                val (p, vars') = pr_bind is_closure thm NOBR ((NONE, SOME pat), ty) vars;
haftmann@29952
   452
              in concat [str delim, p, str "->", pr_term is_closure thm vars' NOBR body] end;
haftmann@28054
   453
          in
haftmann@28054
   454
            (Pretty.enclose "(" ")" o single o brackify fxy) (
haftmann@28054
   455
              str "match"
haftmann@29952
   456
              :: pr_term is_closure thm vars NOBR t
haftmann@29952
   457
              :: pr "with" clause
haftmann@29952
   458
              :: map (pr "|") clauses
haftmann@28054
   459
            )
haftmann@28054
   460
          end
haftmann@29175
   461
      | pr_case is_closure thm vars fxy ((_, []), _) = str "failwith \"empty case\"";
haftmann@28054
   462
    fun fish_params vars eqs =
haftmann@28054
   463
      let
haftmann@28054
   464
        fun fish_param _ (w as SOME _) = w
haftmann@28054
   465
          | fish_param (IVar v) NONE = SOME v
haftmann@28054
   466
          | fish_param _ NONE = NONE;
haftmann@28054
   467
        fun fillup_param _ (_, SOME v) = v
haftmann@28054
   468
          | fillup_param x (i, NONE) = x ^ string_of_int i;
haftmann@28054
   469
        val fished1 = fold (map2 fish_param) eqs (replicate (length (hd eqs)) NONE);
haftmann@28054
   470
        val x = Name.variant (map_filter I fished1) "x";
haftmann@28054
   471
        val fished2 = map_index (fillup_param x) fished1;
haftmann@28054
   472
        val (fished3, _) = Name.variants fished2 Name.context;
haftmann@30648
   473
        val vars' = Code_Printer.intro_vars fished3 vars;
haftmann@30648
   474
      in map (Code_Printer.lookup_var vars') fished3 end;
haftmann@29189
   475
    fun pr_stmt (MLExc (name, n)) =
haftmann@29189
   476
          let
haftmann@29189
   477
            val exc_str =
wenzelm@30364
   478
              (ML_Syntax.print_string o Long_Name.base_name o Long_Name.qualifier) name;
haftmann@29189
   479
          in
haftmann@29189
   480
            concat (
haftmann@29189
   481
              str "let"
haftmann@29189
   482
              :: (str o deresolve) name
haftmann@29189
   483
              :: map str (replicate n "_")
haftmann@29189
   484
              @ str "="
haftmann@29189
   485
              :: str "failwith"
haftmann@29189
   486
              @@ str exc_str
haftmann@29189
   487
            )
haftmann@29189
   488
          end
haftmann@29189
   489
      | pr_stmt (MLVal (name, (((vs, ty), t), (thm, _)))) =
haftmann@29189
   490
          let
haftmann@29189
   491
            val consts = map_filter
haftmann@29189
   492
              (fn c => if (is_some o syntax_const) c
wenzelm@30364
   493
                then NONE else (SOME o Long_Name.base_name o deresolve) c)
haftmann@29189
   494
                (Code_Thingol.fold_constnames (insert (op =)) t []);
haftmann@29189
   495
            val vars = reserved_names
haftmann@30648
   496
              |> Code_Printer.intro_vars consts;
haftmann@29189
   497
          in
haftmann@29189
   498
            concat [
haftmann@29189
   499
              str "let",
haftmann@29189
   500
              (str o deresolve) name,
haftmann@29189
   501
              str ":",
haftmann@29189
   502
              pr_typ NOBR ty,
haftmann@29189
   503
              str "=",
haftmann@29189
   504
              pr_term (K false) thm vars NOBR t
haftmann@29189
   505
            ]
haftmann@29189
   506
          end
haftmann@29189
   507
      | pr_stmt (MLFuns (funn :: funns, pseudo_funs)) =
haftmann@28054
   508
          let
haftmann@28350
   509
            fun pr_eq ((ts, t), (thm, _)) =
haftmann@28054
   510
              let
haftmann@28054
   511
                val consts = map_filter
haftmann@28054
   512
                  (fn c => if (is_some o syntax_const) c
wenzelm@30364
   513
                    then NONE else (SOME o Long_Name.base_name o deresolve) c)
haftmann@28054
   514
                    ((fold o Code_Thingol.fold_constnames) (insert (op =)) (t :: ts) []);
haftmann@28054
   515
                val vars = reserved_names
haftmann@30648
   516
                  |> Code_Printer.intro_vars consts
haftmann@30648
   517
                  |> Code_Printer.intro_vars ((fold o Code_Thingol.fold_unbound_varnames)
haftmann@28054
   518
                      (insert (op =)) ts []);
haftmann@28054
   519
              in concat [
haftmann@29189
   520
                (Pretty.block o Pretty.commas)
haftmann@29189
   521
                  (map (pr_term (member (op =) pseudo_funs) thm vars NOBR) ts),
haftmann@28054
   522
                str "->",
haftmann@29189
   523
                pr_term (member (op =) pseudo_funs) thm vars NOBR t
haftmann@28054
   524
              ] end;
haftmann@29189
   525
            fun pr_eqs is_pseudo [((ts, t), (thm, _))] =
haftmann@28054
   526
                  let
haftmann@28054
   527
                    val consts = map_filter
haftmann@28054
   528
                      (fn c => if (is_some o syntax_const) c
wenzelm@30364
   529
                        then NONE else (SOME o Long_Name.base_name o deresolve) c)
haftmann@28054
   530
                        ((fold o Code_Thingol.fold_constnames) (insert (op =)) (t :: ts) []);
haftmann@28054
   531
                    val vars = reserved_names
haftmann@30648
   532
                      |> Code_Printer.intro_vars consts
haftmann@30648
   533
                      |> Code_Printer.intro_vars ((fold o Code_Thingol.fold_unbound_varnames)
haftmann@28054
   534
                          (insert (op =)) ts []);
haftmann@28054
   535
                  in
haftmann@28054
   536
                    concat (
haftmann@29189
   537
                      (if is_pseudo then [str "()"]
haftmann@29189
   538
                        else map (pr_term (member (op =) pseudo_funs) thm vars BR) ts)
haftmann@28054
   539
                      @ str "="
haftmann@29189
   540
                      @@ pr_term (member (op =) pseudo_funs) thm vars NOBR t
haftmann@28054
   541
                    )
haftmann@28054
   542
                  end
haftmann@29189
   543
              | pr_eqs _ (eqs as (eq as (([_], _), _)) :: eqs') =
haftmann@28054
   544
                  Pretty.block (
haftmann@28054
   545
                    str "="
haftmann@28054
   546
                    :: Pretty.brk 1
haftmann@28054
   547
                    :: str "function"
haftmann@28054
   548
                    :: Pretty.brk 1
haftmann@28054
   549
                    :: pr_eq eq
haftmann@28054
   550
                    :: maps (append [Pretty.fbrk, str "|", Pretty.brk 1]
haftmann@28054
   551
                          o single o pr_eq) eqs'
haftmann@28054
   552
                  )
haftmann@29189
   553
              | pr_eqs _ (eqs as eq :: eqs') =
haftmann@28054
   554
                  let
haftmann@28054
   555
                    val consts = map_filter
haftmann@28054
   556
                      (fn c => if (is_some o syntax_const) c
wenzelm@30364
   557
                        then NONE else (SOME o Long_Name.base_name o deresolve) c)
haftmann@28054
   558
                        ((fold o Code_Thingol.fold_constnames)
haftmann@28054
   559
                          (insert (op =)) (map (snd o fst) eqs) []);
haftmann@28054
   560
                    val vars = reserved_names
haftmann@30648
   561
                      |> Code_Printer.intro_vars consts;
haftmann@28054
   562
                    val dummy_parms = (map str o fish_params vars o map (fst o fst)) eqs;
haftmann@28054
   563
                  in
haftmann@28054
   564
                    Pretty.block (
haftmann@28054
   565
                      Pretty.breaks dummy_parms
haftmann@28054
   566
                      @ Pretty.brk 1
haftmann@28054
   567
                      :: str "="
haftmann@28054
   568
                      :: Pretty.brk 1
haftmann@28054
   569
                      :: str "match"
haftmann@28054
   570
                      :: Pretty.brk 1
haftmann@28054
   571
                      :: (Pretty.block o Pretty.commas) dummy_parms
haftmann@28054
   572
                      :: Pretty.brk 1
haftmann@28054
   573
                      :: str "with"
haftmann@28054
   574
                      :: Pretty.brk 1
haftmann@28054
   575
                      :: pr_eq eq
haftmann@28054
   576
                      :: maps (append [Pretty.fbrk, str "|", Pretty.brk 1]
haftmann@28054
   577
                           o single o pr_eq) eqs'
haftmann@28054
   578
                    )
haftmann@28054
   579
                  end;
haftmann@29189
   580
            fun pr_funn definer (name, ((vs, ty), eqs)) =
haftmann@28054
   581
              concat (
haftmann@28054
   582
                str definer
haftmann@28054
   583
                :: (str o deresolve) name
haftmann@28054
   584
                :: pr_tyvar_dicts (filter_out (null o snd) vs)
haftmann@29189
   585
                @| pr_eqs (member (op =) pseudo_funs name) eqs
haftmann@28054
   586
              );
haftmann@29189
   587
            fun pr_pseudo_fun name = concat [
haftmann@29189
   588
                str "let",
haftmann@29189
   589
                (str o deresolve) name,
haftmann@29189
   590
                str "=",
haftmann@29189
   591
                (str o deresolve) name,
haftmann@29189
   592
                str "();;"
haftmann@29189
   593
              ];
haftmann@29189
   594
            val (ps, p) = split_last (pr_funn "fun" funn :: map (pr_funn "and") funns);
haftmann@28054
   595
            val (ps, p) = split_last
haftmann@29189
   596
              (pr_funn "let rec" funn :: map (pr_funn "and") funns);
haftmann@29189
   597
            val pseudo_ps = map pr_pseudo_fun pseudo_funs;
haftmann@29189
   598
          in Pretty.chunks (ps @ Pretty.block ([p, str ";;"]) :: pseudo_ps) end
haftmann@28054
   599
     | pr_stmt (MLDatas (datas as (data :: datas'))) =
haftmann@28054
   600
          let
haftmann@28054
   601
            fun pr_co (co, []) =
haftmann@28054
   602
                  str (deresolve co)
haftmann@28054
   603
              | pr_co (co, tys) =
haftmann@28054
   604
                  concat [
haftmann@28054
   605
                    str (deresolve co),
haftmann@28054
   606
                    str "of",
haftmann@28054
   607
                    Pretty.enum " *" "" "" (map (pr_typ (INFX (2, X))) tys)
haftmann@28054
   608
                  ];
haftmann@28054
   609
            fun pr_data definer (tyco, (vs, [])) =
haftmann@28054
   610
                  concat (
haftmann@28054
   611
                    str definer
haftmann@28054
   612
                    :: pr_tycoexpr NOBR (tyco, map (ITyVar o fst) vs)
haftmann@28054
   613
                    :: str "="
haftmann@28054
   614
                    @@ str "EMPTY_"
haftmann@28054
   615
                  )
haftmann@28054
   616
              | pr_data definer (tyco, (vs, cos)) =
haftmann@28054
   617
                  concat (
haftmann@28054
   618
                    str definer
haftmann@28054
   619
                    :: pr_tycoexpr NOBR (tyco, map (ITyVar o fst) vs)
haftmann@28054
   620
                    :: str "="
haftmann@28054
   621
                    :: separate (str "|") (map pr_co cos)
haftmann@28054
   622
                  );
haftmann@28054
   623
            val (ps, p) = split_last
haftmann@28054
   624
              (pr_data "type" data :: map (pr_data "and") datas');
haftmann@29189
   625
          in Pretty.chunks (ps @| Pretty.block ([p, str ";;"])) end
haftmann@28054
   626
     | pr_stmt (MLClass (class, (v, (superclasses, classparams)))) =
haftmann@28054
   627
          let
haftmann@30648
   628
            val w = "_" ^ Code_Printer.first_upper v;
haftmann@28054
   629
            fun pr_superclass_field (class, classrel) =
haftmann@28054
   630
              (concat o map str) [
haftmann@28054
   631
                deresolve classrel, ":", "'" ^ v, deresolve class
haftmann@28054
   632
              ];
haftmann@28054
   633
            fun pr_classparam_field (classparam, ty) =
haftmann@28054
   634
              concat [
haftmann@28054
   635
                (str o deresolve) classparam, str ":", pr_typ NOBR ty
haftmann@28054
   636
              ];
haftmann@28054
   637
            fun pr_classparam_proj (classparam, _) =
haftmann@28054
   638
              concat [
haftmann@28054
   639
                str "let",
haftmann@28054
   640
                (str o deresolve) classparam,
haftmann@28054
   641
                str w,
haftmann@28054
   642
                str "=",
haftmann@28054
   643
                str (w ^ "." ^ deresolve classparam ^ ";;")
haftmann@28054
   644
              ];
haftmann@28054
   645
          in Pretty.chunks (
haftmann@28054
   646
            concat [
haftmann@28054
   647
              str ("type '" ^ v),
haftmann@28054
   648
              (str o deresolve) class,
haftmann@28054
   649
              str "=",
haftmann@28054
   650
              enum_default "();;" ";" "{" "};;" (
haftmann@28054
   651
                map pr_superclass_field superclasses
haftmann@28054
   652
                @ map pr_classparam_field classparams
haftmann@28054
   653
              )
haftmann@28054
   654
            ]
haftmann@28054
   655
            :: map pr_classparam_proj classparams
haftmann@28054
   656
          ) end
haftmann@28054
   657
     | pr_stmt (MLClassinst (inst, ((class, (tyco, arity)), (superarities, classparam_insts)))) =
haftmann@28054
   658
          let
haftmann@28054
   659
            fun pr_superclass (_, (classrel, dss)) =
haftmann@28054
   660
              concat [
haftmann@28054
   661
                (str o deresolve) classrel,
haftmann@28054
   662
                str "=",
haftmann@28054
   663
                pr_dicts NOBR [DictConst dss]
haftmann@28054
   664
              ];
haftmann@28350
   665
            fun pr_classparam_inst ((classparam, c_inst), (thm, _)) =
haftmann@28054
   666
              concat [
haftmann@28054
   667
                (str o deresolve) classparam,
haftmann@28054
   668
                str "=",
haftmann@29175
   669
                pr_app (K false) thm reserved_names NOBR (c_inst, [])
haftmann@28054
   670
              ];
haftmann@28054
   671
          in
haftmann@28054
   672
            concat (
haftmann@28054
   673
              str "let"
haftmann@28054
   674
              :: (str o deresolve) inst
haftmann@28054
   675
              :: pr_tyvar_dicts arity
haftmann@28054
   676
              @ str "="
haftmann@28054
   677
              @@ (Pretty.enclose "(" ");;" o Pretty.breaks) [
haftmann@28054
   678
                enum_default "()" ";" "{" "}" (map pr_superclass superarities
haftmann@28054
   679
                  @ map pr_classparam_inst classparam_insts),
haftmann@28054
   680
                str ":",
haftmann@28054
   681
                pr_tycoexpr NOBR (class, [tyco `%% map (ITyVar o fst) arity])
haftmann@28054
   682
              ]
haftmann@28054
   683
            )
haftmann@28054
   684
          end;
haftmann@28054
   685
  in pr_stmt end;
haftmann@28054
   686
haftmann@28054
   687
fun pr_ocaml_module name content =
haftmann@28054
   688
  Pretty.chunks (
haftmann@28054
   689
    str ("module " ^ name ^ " = ")
haftmann@28054
   690
    :: str "struct"
haftmann@28054
   691
    :: str ""
haftmann@28054
   692
    :: content
haftmann@28054
   693
    @ str ""
haftmann@28054
   694
    @@ str ("end;; (*struct " ^ name ^ "*)")
haftmann@28054
   695
  );
haftmann@28054
   696
haftmann@28064
   697
val literals_ocaml = let
haftmann@28064
   698
  fun chr i =
haftmann@28064
   699
    let
haftmann@28064
   700
      val xs = string_of_int i;
haftmann@28064
   701
      val ys = replicate_string (3 - length (explode xs)) "0";
haftmann@28064
   702
    in "\\" ^ ys ^ xs end;
haftmann@28064
   703
  fun char_ocaml c =
haftmann@28064
   704
    let
haftmann@28064
   705
      val i = ord c;
haftmann@28064
   706
      val s = if i < 32 orelse i = 34 orelse i = 39 orelse i = 92 orelse i > 126
haftmann@28064
   707
        then chr i else c
haftmann@28064
   708
    in s end;
haftmann@28064
   709
in Literals {
haftmann@28064
   710
  literal_char = enclose "'" "'" o char_ocaml,
haftmann@28064
   711
  literal_string = quote o translate_string char_ocaml,
haftmann@28064
   712
  literal_numeral = fn unbounded => fn k => if k >= 0 then
haftmann@28064
   713
      if unbounded then
haftmann@28064
   714
        "(Big_int.big_int_of_int " ^ string_of_int k ^ ")"
haftmann@28064
   715
      else string_of_int k
haftmann@28064
   716
    else
haftmann@28064
   717
      if unbounded then
haftmann@28064
   718
        "(Big_int.big_int_of_int " ^ (enclose "(" ")" o prefix "-"
haftmann@28064
   719
          o string_of_int o op ~) k ^ ")"
haftmann@28064
   720
      else (enclose "(" ")" o prefix "-" o string_of_int o op ~) k,
haftmann@28064
   721
  literal_list = Pretty.enum ";" "[" "]",
haftmann@28064
   722
  infix_cons = (6, "::")
haftmann@28064
   723
} end;
haftmann@28064
   724
haftmann@28064
   725
haftmann@28054
   726
haftmann@28054
   727
(** SML/OCaml generic part **)
haftmann@28054
   728
haftmann@28054
   729
local
haftmann@28054
   730
haftmann@28054
   731
datatype ml_node =
haftmann@28054
   732
    Dummy of string
haftmann@28054
   733
  | Stmt of string * ml_stmt
haftmann@28054
   734
  | Module of string * ((Name.context * Name.context) * ml_node Graph.T);
haftmann@28054
   735
haftmann@28054
   736
in
haftmann@28054
   737
haftmann@28054
   738
fun ml_node_of_program labelled_name module_name reserved_names raw_module_alias program =
haftmann@28054
   739
  let
haftmann@28054
   740
    val module_alias = if is_some module_name then K module_name else raw_module_alias;
haftmann@28054
   741
    val reserved_names = Name.make_context reserved_names;
haftmann@28054
   742
    val empty_module = ((reserved_names, reserved_names), Graph.empty);
haftmann@28054
   743
    fun map_node [] f = f
haftmann@28054
   744
      | map_node (m::ms) f =
haftmann@28054
   745
          Graph.default_node (m, Module (m, empty_module))
haftmann@28054
   746
          #> Graph.map_node m (fn (Module (module_name, (nsp, nodes))) =>
haftmann@28054
   747
               Module (module_name, (nsp, map_node ms f nodes)));
haftmann@28054
   748
    fun map_nsp_yield [] f (nsp, nodes) =
haftmann@28054
   749
          let
haftmann@28054
   750
            val (x, nsp') = f nsp
haftmann@28054
   751
          in (x, (nsp', nodes)) end
haftmann@28054
   752
      | map_nsp_yield (m::ms) f (nsp, nodes) =
haftmann@28054
   753
          let
haftmann@28054
   754
            val (x, nodes') =
haftmann@28054
   755
              nodes
haftmann@28054
   756
              |> Graph.default_node (m, Module (m, empty_module))
haftmann@28054
   757
              |> Graph.map_node_yield m (fn Module (d_module_name, nsp_nodes) => 
haftmann@28054
   758
                  let
haftmann@28054
   759
                    val (x, nsp_nodes') = map_nsp_yield ms f nsp_nodes
haftmann@28054
   760
                  in (x, Module (d_module_name, nsp_nodes')) end)
haftmann@28054
   761
          in (x, (nsp, nodes')) end;
haftmann@28054
   762
    fun map_nsp_fun_yield f (nsp_fun, nsp_typ) =
haftmann@28054
   763
      let
haftmann@28054
   764
        val (x, nsp_fun') = f nsp_fun
haftmann@28054
   765
      in (x, (nsp_fun', nsp_typ)) end;
haftmann@28054
   766
    fun map_nsp_typ_yield f (nsp_fun, nsp_typ) =
haftmann@28054
   767
      let
haftmann@28054
   768
        val (x, nsp_typ') = f nsp_typ
haftmann@28054
   769
      in (x, (nsp_fun, nsp_typ')) end;
haftmann@30648
   770
    val mk_name_module = Code_Printer.mk_name_module reserved_names NONE module_alias program;
haftmann@28054
   771
    fun mk_name_stmt upper name nsp =
haftmann@28054
   772
      let
haftmann@30648
   773
        val (_, base) = Code_Printer.dest_name name;
haftmann@30648
   774
        val base' = if upper then Code_Printer.first_upper base else base;
haftmann@28054
   775
        val ([base''], nsp') = Name.variants [base'] nsp;
haftmann@28054
   776
      in (base'', nsp') end;
haftmann@29189
   777
    fun rearrange_fun name (tysm as (vs, ty), raw_eqs) =
haftmann@29189
   778
      let
haftmann@29189
   779
        val eqs = filter (snd o snd) raw_eqs;
haftmann@29189
   780
        val (eqs', is_value) = if null (filter_out (null o snd) vs) then case eqs
haftmann@29189
   781
         of [(([], t), thm)] => if (not o null o fst o Code_Thingol.unfold_fun) ty
haftmann@29189
   782
            then ([(([IVar "x"], t `$ IVar "x"), thm)], false)
haftmann@29189
   783
            else (eqs, not (Code_Thingol.fold_constnames
haftmann@29189
   784
              (fn name' => fn b => b orelse name = name') t false))
haftmann@29189
   785
          | _ => (eqs, false)
haftmann@29189
   786
          else (eqs, false)
haftmann@29189
   787
      in ((name, (tysm, eqs')), is_value) end;
haftmann@29189
   788
    fun check_kind [((name, (tysm, [(([], t), thm)])), true)] = MLVal (name, ((tysm, t), thm))
haftmann@29189
   789
      | check_kind [((name, ((vs, ty), [])), _)] =
haftmann@29189
   790
          MLExc (name, (length o filter_out (null o snd)) vs + (length o fst o Code_Thingol.unfold_fun) ty)
haftmann@29189
   791
      | check_kind funns =
haftmann@29189
   792
          MLFuns (map fst funns, map_filter
haftmann@29189
   793
            (fn ((name, ((vs, _), [(([], _), _)])), _) =>
haftmann@29189
   794
                  if null (filter_out (null o snd) vs) then SOME name else NONE
haftmann@29189
   795
              | _ => NONE) funns);
haftmann@29189
   796
    fun add_funs stmts = fold_map
haftmann@28663
   797
        (fn (name, Code_Thingol.Fun (_, stmt)) =>
haftmann@29189
   798
              map_nsp_fun_yield (mk_name_stmt false name)
haftmann@29189
   799
              #>> rpair (rearrange_fun name stmt)
haftmann@28054
   800
          | (name, _) =>
haftmann@28054
   801
              error ("Function block containing illegal statement: " ^ labelled_name name)
haftmann@28054
   802
        ) stmts
haftmann@29189
   803
      #>> (split_list #> apsnd check_kind);
haftmann@28054
   804
    fun add_datatypes stmts =
haftmann@28054
   805
      fold_map
haftmann@28663
   806
        (fn (name, Code_Thingol.Datatype (_, stmt)) =>
haftmann@28054
   807
              map_nsp_typ_yield (mk_name_stmt false name) #>> rpair (SOME (name, stmt))
haftmann@28054
   808
          | (name, Code_Thingol.Datatypecons _) =>
haftmann@28054
   809
              map_nsp_fun_yield (mk_name_stmt true name) #>> rpair NONE
haftmann@28054
   810
          | (name, _) =>
haftmann@28054
   811
              error ("Datatype block containing illegal statement: " ^ labelled_name name)
haftmann@28054
   812
        ) stmts
haftmann@28054
   813
      #>> (split_list #> apsnd (map_filter I
haftmann@28054
   814
        #> (fn [] => error ("Datatype block without data statement: "
haftmann@28054
   815
                  ^ (commas o map (labelled_name o fst)) stmts)
haftmann@28054
   816
             | stmts => MLDatas stmts)));
haftmann@28054
   817
    fun add_class stmts =
haftmann@28054
   818
      fold_map
haftmann@28663
   819
        (fn (name, Code_Thingol.Class (_, stmt)) =>
haftmann@28663
   820
              map_nsp_typ_yield (mk_name_stmt false name) #>> rpair (SOME (name, stmt))
haftmann@28054
   821
          | (name, Code_Thingol.Classrel _) =>
haftmann@28054
   822
              map_nsp_fun_yield (mk_name_stmt false name) #>> rpair NONE
haftmann@28054
   823
          | (name, Code_Thingol.Classparam _) =>
haftmann@28054
   824
              map_nsp_fun_yield (mk_name_stmt false name) #>> rpair NONE
haftmann@28054
   825
          | (name, _) =>
haftmann@28054
   826
              error ("Class block containing illegal statement: " ^ labelled_name name)
haftmann@28054
   827
        ) stmts
haftmann@28054
   828
      #>> (split_list #> apsnd (map_filter I
haftmann@28054
   829
        #> (fn [] => error ("Class block without class statement: "
haftmann@28054
   830
                  ^ (commas o map (labelled_name o fst)) stmts)
haftmann@28054
   831
             | [stmt] => MLClass stmt)));
haftmann@28054
   832
    fun add_inst [(name, Code_Thingol.Classinst stmt)] =
haftmann@28054
   833
      map_nsp_fun_yield (mk_name_stmt false name)
haftmann@28054
   834
      #>> (fn base => ([base], MLClassinst (name, stmt)));
haftmann@28054
   835
    fun add_stmts ((stmts as (_, Code_Thingol.Fun _)::_)) =
haftmann@28054
   836
          add_funs stmts
haftmann@28054
   837
      | add_stmts ((stmts as (_, Code_Thingol.Datatypecons _)::_)) =
haftmann@28054
   838
          add_datatypes stmts
haftmann@28054
   839
      | add_stmts ((stmts as (_, Code_Thingol.Datatype _)::_)) =
haftmann@28054
   840
          add_datatypes stmts
haftmann@28054
   841
      | add_stmts ((stmts as (_, Code_Thingol.Class _)::_)) =
haftmann@28054
   842
          add_class stmts
haftmann@28054
   843
      | add_stmts ((stmts as (_, Code_Thingol.Classrel _)::_)) =
haftmann@28054
   844
          add_class stmts
haftmann@28054
   845
      | add_stmts ((stmts as (_, Code_Thingol.Classparam _)::_)) =
haftmann@28054
   846
          add_class stmts
haftmann@28054
   847
      | add_stmts ((stmts as [(_, Code_Thingol.Classinst _)])) =
haftmann@28054
   848
          add_inst stmts
haftmann@28054
   849
      | add_stmts stmts = error ("Illegal mutual dependencies: " ^
haftmann@28054
   850
          (commas o map (labelled_name o fst)) stmts);
haftmann@28054
   851
    fun add_stmts' stmts nsp_nodes =
haftmann@28054
   852
      let
haftmann@28054
   853
        val names as (name :: names') = map fst stmts;
haftmann@28054
   854
        val deps =
haftmann@28054
   855
          []
haftmann@28054
   856
          |> fold (fold (insert (op =)) o Graph.imm_succs program) names
haftmann@28054
   857
          |> subtract (op =) names;
haftmann@30648
   858
        val (module_names, _) = (split_list o map Code_Printer.dest_name) names;
haftmann@28054
   859
        val module_name = (the_single o distinct (op =) o map mk_name_module) module_names
haftmann@28054
   860
          handle Empty =>
haftmann@28054
   861
            error ("Different namespace prefixes for mutual dependencies:\n"
haftmann@28054
   862
              ^ commas (map labelled_name names)
haftmann@28054
   863
              ^ "\n"
haftmann@28054
   864
              ^ commas module_names);
wenzelm@30364
   865
        val module_name_path = Long_Name.explode module_name;
haftmann@28054
   866
        fun add_dep name name' =
haftmann@28054
   867
          let
haftmann@30648
   868
            val module_name' = (mk_name_module o fst o Code_Printer.dest_name) name';
haftmann@28054
   869
          in if module_name = module_name' then
haftmann@28054
   870
            map_node module_name_path (Graph.add_edge (name, name'))
haftmann@28054
   871
          else let
haftmann@28705
   872
            val (common, (diff1 :: _, diff2 :: _)) = chop_prefix (op =)
wenzelm@30364
   873
              (module_name_path, Long_Name.explode module_name');
haftmann@28054
   874
          in
haftmann@28054
   875
            map_node common
haftmann@28054
   876
              (fn node => Graph.add_edge_acyclic (diff1, diff2) node
haftmann@28054
   877
                handle Graph.CYCLES _ => error ("Dependency "
haftmann@28054
   878
                  ^ quote name ^ " -> " ^ quote name'
haftmann@28054
   879
                  ^ " would result in module dependency cycle"))
haftmann@28054
   880
          end end;
haftmann@28054
   881
      in
haftmann@28054
   882
        nsp_nodes
haftmann@28054
   883
        |> map_nsp_yield module_name_path (add_stmts stmts)
haftmann@28054
   884
        |-> (fn (base' :: bases', stmt') =>
haftmann@28054
   885
           apsnd (map_node module_name_path (Graph.new_node (name, (Stmt (base', stmt')))
haftmann@28054
   886
              #> fold2 (fn name' => fn base' =>
haftmann@28054
   887
                   Graph.new_node (name', (Dummy base'))) names' bases')))
haftmann@28054
   888
        |> apsnd (fold (fn name => fold (add_dep name) deps) names)
haftmann@28054
   889
        |> apsnd (fold_product (curry (map_node module_name_path o Graph.add_edge)) names names)
haftmann@28054
   890
      end;
haftmann@28054
   891
    val (_, nodes) = empty_module
haftmann@28054
   892
      |> fold add_stmts' (map (AList.make (Graph.get_node program))
haftmann@28054
   893
          (rev (Graph.strong_conn program)));
haftmann@28054
   894
    fun deresolver prefix name = 
haftmann@28054
   895
      let
haftmann@30648
   896
        val module_name = (fst o Code_Printer.dest_name) name;
wenzelm@30364
   897
        val module_name' = (Long_Name.explode o mk_name_module) module_name;
haftmann@28054
   898
        val (_, (_, remainder)) = chop_prefix (op =) (prefix, module_name');
haftmann@28054
   899
        val stmt_name =
haftmann@28054
   900
          nodes
haftmann@28054
   901
          |> fold (fn name => fn node => case Graph.get_node node name
haftmann@28054
   902
              of Module (_, (_, node)) => node) module_name'
haftmann@28054
   903
          |> (fn node => case Graph.get_node node name of Stmt (stmt_name, _) => stmt_name
haftmann@28054
   904
               | Dummy stmt_name => stmt_name);
haftmann@28054
   905
      in
wenzelm@30364
   906
        Long_Name.implode (remainder @ [stmt_name])
haftmann@28054
   907
      end handle Graph.UNDEF _ =>
haftmann@28054
   908
        error ("Unknown statement name: " ^ labelled_name name);
haftmann@28054
   909
  in (deresolver, nodes) end;
haftmann@28054
   910
haftmann@28054
   911
fun serialize_ml target compile pr_module pr_stmt raw_module_name labelled_name reserved_names includes raw_module_alias
haftmann@30962
   912
  _ syntax_tyco syntax_const naming program stmt_names destination =
haftmann@28054
   913
  let
haftmann@28054
   914
    val is_cons = Code_Thingol.is_cons program;
haftmann@30962
   915
    val present_stmt_names = Code_Target.stmt_names_of_destination destination;
haftmann@30962
   916
    val is_present = not (null present_stmt_names);
haftmann@30962
   917
    val module_name = if is_present then SOME "Code" else raw_module_name;
haftmann@28054
   918
    val (deresolver, nodes) = ml_node_of_program labelled_name module_name
haftmann@28054
   919
      reserved_names raw_module_alias program;
haftmann@30648
   920
    val reserved_names = Code_Printer.make_vars reserved_names;
haftmann@28054
   921
    fun pr_node prefix (Dummy _) =
haftmann@28054
   922
          NONE
haftmann@30962
   923
      | pr_node prefix (Stmt (_, stmt)) = if is_present andalso
haftmann@30962
   924
          (null o filter (member (op =) present_stmt_names) o stmt_names_of) stmt
haftmann@30962
   925
          then NONE
haftmann@30962
   926
          else SOME
haftmann@28663
   927
            (pr_stmt naming labelled_name syntax_tyco syntax_const reserved_names
haftmann@28054
   928
              (deresolver prefix) is_cons stmt)
haftmann@28054
   929
      | pr_node prefix (Module (module_name, (_, nodes))) =
haftmann@28054
   930
          separate (str "")
haftmann@28054
   931
            ((map_filter (pr_node (prefix @ [module_name]) o Graph.get_node nodes)
haftmann@28054
   932
              o rev o flat o Graph.strong_conn) nodes)
haftmann@30962
   933
          |> (if is_present then Pretty.chunks else pr_module module_name)
haftmann@28054
   934
          |> SOME;
haftmann@30962
   935
    val stmt_names' = (map o try)
haftmann@30962
   936
      (deresolver (if is_some module_name then the_list module_name else [])) stmt_names;
haftmann@28054
   937
    val p = Pretty.chunks (separate (str "") (map snd includes @ (map_filter
haftmann@28054
   938
      (pr_node [] o Graph.get_node nodes) o rev o flat o Graph.strong_conn) nodes));
haftmann@28054
   939
  in
haftmann@28054
   940
    Code_Target.mk_serialization target
haftmann@28054
   941
      (case compile of SOME compile => SOME (compile o Code_Target.code_of_pretty) | NONE => NONE)
haftmann@28054
   942
      (fn NONE => Code_Target.code_writeln | SOME file => File.write file o Code_Target.code_of_pretty)
haftmann@30962
   943
      (rpair stmt_names' o Code_Target.code_of_pretty) p destination
haftmann@28054
   944
  end;
haftmann@28054
   945
haftmann@28054
   946
end; (*local*)
haftmann@28054
   947
haftmann@28054
   948
haftmann@28054
   949
(** ML (system language) code for evaluation and instrumentalization **)
haftmann@28054
   950
haftmann@30947
   951
fun eval_code_of some_target thy = Code_Target.serialize_custom thy (the_default target_Eval some_target,
haftmann@28663
   952
    (fn _ => fn [] => serialize_ml target_SML (SOME (K ())) (K Pretty.chunks) pr_sml_stmt (SOME ""),
haftmann@28064
   953
  literals_sml));
haftmann@28054
   954
haftmann@28054
   955
haftmann@28054
   956
(* evaluation *)
haftmann@28054
   957
haftmann@30970
   958
fun eval some_target reff postproc thy t args =
haftmann@28054
   959
  let
wenzelm@28275
   960
    val ctxt = ProofContext.init thy;
haftmann@30941
   961
    val _ = if null (Term.add_frees t []) then () else error ("Term "
haftmann@30941
   962
      ^ quote (Syntax.string_of_term_global thy t)
haftmann@28054
   963
      ^ " to be evaluated contains free variables");
haftmann@30947
   964
    fun evaluator naming program (((_, (_, ty)), _), t) deps =
haftmann@28054
   965
      let
haftmann@28054
   966
        val _ = if Code_Thingol.contains_dictvar t then
haftmann@28724
   967
          error "Term to be evaluated contains free dictionaries" else ();
haftmann@28663
   968
        val value_name = "Value.VALUE.value"
haftmann@28054
   969
        val program' = program
haftmann@28663
   970
          |> Graph.new_node (value_name,
haftmann@28663
   971
              Code_Thingol.Fun (Term.dummy_patternN, (([], ty), [(([], t), (Drule.dummy_thm, true))])))
haftmann@28663
   972
          |> fold (curry Graph.add_edge value_name) deps;
haftmann@30947
   973
        val (value_code, [SOME value_name']) = eval_code_of some_target thy naming program' [value_name];
haftmann@28054
   974
        val sml_code = "let\n" ^ value_code ^ "\nin " ^ value_name'
haftmann@28054
   975
          ^ space_implode " " (map (enclose "(" ")") args) ^ " end";
wenzelm@30672
   976
      in ML_Context.evaluate ctxt false reff sml_code end;
haftmann@30970
   977
  in Code_Thingol.eval thy I postproc evaluator t end;
haftmann@28054
   978
haftmann@28054
   979
haftmann@28054
   980
(* instrumentalization by antiquotation *)
haftmann@28054
   981
haftmann@28054
   982
local
haftmann@28054
   983
haftmann@28054
   984
structure CodeAntiqData = ProofDataFun
haftmann@28054
   985
(
haftmann@30962
   986
  type T = (string list * string list) * (bool * (string
haftmann@30962
   987
    * (string * ((string * string) list * (string * string) list)) lazy));
haftmann@30962
   988
  fun init _ = (([], []), (true, ("", Lazy.value ("", ([], [])))));
haftmann@28054
   989
);
haftmann@28054
   990
haftmann@28054
   991
val is_first_occ = fst o snd o CodeAntiqData.get;
haftmann@28054
   992
haftmann@30962
   993
fun delayed_code thy tycos consts () =
haftmann@28054
   994
  let
haftmann@28663
   995
    val (consts', (naming, program)) = Code_Thingol.consts_program thy consts;
haftmann@30962
   996
    val tycos' = map (the o Code_Thingol.lookup_tyco naming) tycos;
haftmann@30962
   997
    val (ml_code, target_names) = eval_code_of NONE thy naming program (consts' @ tycos');
haftmann@30962
   998
    val (consts'', tycos'') = chop (length consts') target_names;
haftmann@30962
   999
    val consts_map = map2 (fn const => fn NONE =>
haftmann@30962
  1000
        error ("Constant " ^ (quote o Code_Unit.string_of_const thy) const
haftmann@30962
  1001
          ^ "\nhas a user-defined serialization")
haftmann@30962
  1002
      | SOME const'' => (const, const'')) consts consts''
haftmann@30962
  1003
    val tycos_map = map2 (fn tyco => fn NONE =>
haftmann@30962
  1004
        error ("Type " ^ (quote o Sign.extern_type thy) tyco
haftmann@30962
  1005
          ^ "\nhas a user-defined serialization")
haftmann@30962
  1006
      | SOME tyco'' => (tyco, tyco'')) tycos tycos'';
haftmann@30962
  1007
  in (ml_code, (tycos_map, consts_map)) end;
haftmann@28054
  1008
haftmann@30962
  1009
fun register_code new_tycos new_consts ctxt =
haftmann@28054
  1010
  let
haftmann@30962
  1011
    val ((tycos, consts), (_, (struct_name, _))) = CodeAntiqData.get ctxt;
haftmann@30962
  1012
    val tycos' = fold (insert (op =)) new_tycos tycos;
haftmann@30962
  1013
    val consts' = fold (insert (op =)) new_consts consts;
haftmann@28054
  1014
    val (struct_name', ctxt') = if struct_name = ""
haftmann@28054
  1015
      then ML_Antiquote.variant "Code" ctxt
haftmann@28054
  1016
      else (struct_name, ctxt);
haftmann@30962
  1017
    val acc_code = Lazy.lazy (delayed_code (ProofContext.theory_of ctxt) tycos' consts');
haftmann@30962
  1018
  in CodeAntiqData.put ((tycos', consts'), (false, (struct_name', acc_code))) ctxt' end;
haftmann@30962
  1019
haftmann@30962
  1020
fun register_const const = register_code [] [const];
haftmann@28054
  1021
haftmann@30962
  1022
fun register_datatype tyco constrs = register_code [tyco] constrs;
haftmann@30962
  1023
haftmann@30962
  1024
fun print_const const all_struct_name tycos_map consts_map =
haftmann@30962
  1025
  (Long_Name.append all_struct_name o the o AList.lookup (op =) consts_map) const;
haftmann@30962
  1026
haftmann@30962
  1027
fun print_datatype tyco constrs all_struct_name tycos_map consts_map =
haftmann@28054
  1028
  let
haftmann@30962
  1029
    val upperize = implode o nth_map 0 Symbol.to_ascii_upper o explode;
haftmann@30962
  1030
    fun check_base name name'' =
haftmann@30962
  1031
      if upperize (Long_Name.base_name name) = upperize name''
haftmann@30962
  1032
      then () else error ("Name as printed " ^ quote name''
haftmann@30962
  1033
        ^ "\ndiffers from logical base name " ^ quote (Long_Name.base_name name) ^ "; sorry.");
haftmann@30962
  1034
    val tyco'' = (the o AList.lookup (op =) tycos_map) tyco;
haftmann@30962
  1035
    val constrs'' = map (the o AList.lookup (op =) consts_map) constrs;
haftmann@30962
  1036
    val _ = check_base tyco tyco'';
haftmann@30962
  1037
    val _ = map2 check_base constrs constrs'';
haftmann@30962
  1038
  in "datatype " ^ tyco'' ^ " = datatype " ^ Long_Name.append all_struct_name tyco'' end;
haftmann@30962
  1039
haftmann@30962
  1040
fun print_code struct_name is_first print_it ctxt =
haftmann@30962
  1041
  let
haftmann@30962
  1042
    val (_, (_, (struct_code_name, acc_code))) = CodeAntiqData.get ctxt;
haftmann@30962
  1043
    val (raw_ml_code, (tycos_map, consts_map)) = Lazy.force acc_code;
haftmann@28054
  1044
    val ml_code = if is_first then "\nstructure " ^ struct_code_name
haftmann@28054
  1045
        ^ " =\nstruct\n\n" ^ raw_ml_code ^ "\nend;\n\n"
haftmann@28054
  1046
      else "";
haftmann@30962
  1047
    val all_struct_name = Long_Name.append struct_name struct_code_name;
haftmann@30962
  1048
  in (ml_code, print_it all_struct_name tycos_map consts_map) end;
haftmann@28054
  1049
haftmann@28054
  1050
in
haftmann@28054
  1051
haftmann@28054
  1052
fun ml_code_antiq raw_const {struct_name, background} =
haftmann@28054
  1053
  let
haftmann@28054
  1054
    val const = Code_Unit.check_const (ProofContext.theory_of background) raw_const;
haftmann@28054
  1055
    val is_first = is_first_occ background;
haftmann@28054
  1056
    val background' = register_const const background;
haftmann@30962
  1057
  in (print_code struct_name is_first (print_const const), background') end;
haftmann@30962
  1058
haftmann@30962
  1059
fun ml_code_datatype_antiq (raw_tyco, raw_constrs) {struct_name, background} =
haftmann@30962
  1060
  let
haftmann@30962
  1061
    val thy = ProofContext.theory_of background;
haftmann@30962
  1062
    val tyco = Sign.intern_type thy raw_tyco;
haftmann@30962
  1063
    val constrs = map (Code_Unit.check_const thy) raw_constrs;
haftmann@30962
  1064
    val constrs' = (map fst o snd o Code.get_datatype thy) tyco;
haftmann@30962
  1065
    val _ = if gen_eq_set (op =) (constrs, constrs') then ()
haftmann@30962
  1066
      else error ("Type " ^ quote tyco ^ ": given constructors diverge from real constructors")
haftmann@30962
  1067
    val is_first = is_first_occ background;
haftmann@30962
  1068
    val background' = register_datatype tyco constrs background;
haftmann@30962
  1069
  in (print_code struct_name is_first (print_datatype tyco constrs), background') end;
haftmann@28054
  1070
haftmann@28054
  1071
end; (*local*)
haftmann@28054
  1072
haftmann@28054
  1073
haftmann@28054
  1074
(** Isar setup **)
haftmann@28054
  1075
haftmann@28054
  1076
val _ = ML_Context.add_antiq "code" (fn _ => Args.term >> ml_code_antiq);
haftmann@30962
  1077
val _ = ML_Context.add_antiq "code_datatype" (fn _ =>
haftmann@30962
  1078
  (Args.tyname --| Scan.lift (Args.$$$ "=")
haftmann@30962
  1079
    -- (Args.term ::: Scan.repeat (Scan.lift (Args.$$$ "|") |-- Args.term)))
haftmann@30962
  1080
      >> ml_code_datatype_antiq);
haftmann@28054
  1081
haftmann@28054
  1082
fun isar_seri_sml module_name =
haftmann@28054
  1083
  Code_Target.parse_args (Scan.succeed ())
wenzelm@28275
  1084
  #> (fn () => serialize_ml target_SML
wenzelm@30675
  1085
      (SOME (use_text ML_Context.local_context (1, "generated code") false))
haftmann@28054
  1086
      pr_sml_module pr_sml_stmt module_name);
haftmann@28054
  1087
haftmann@28054
  1088
fun isar_seri_ocaml module_name =
haftmann@28054
  1089
  Code_Target.parse_args (Scan.succeed ())
haftmann@28054
  1090
  #> (fn () => serialize_ml target_OCaml NONE
haftmann@28054
  1091
      pr_ocaml_module pr_ocaml_stmt module_name);
haftmann@28054
  1092
haftmann@28054
  1093
val setup =
haftmann@28064
  1094
  Code_Target.add_target (target_SML, (isar_seri_sml, literals_sml))
haftmann@28064
  1095
  #> Code_Target.add_target (target_OCaml, (isar_seri_ocaml, literals_ocaml))
haftmann@30947
  1096
  #> Code_Target.extend_target (target_Eval, (target_SML, K I))
haftmann@28054
  1097
  #> Code_Target.add_syntax_tyco target_SML "fun" (SOME (2, fn pr_typ => fn fxy => fn [ty1, ty2] =>
haftmann@28054
  1098
      brackify_infix (1, R) fxy [
haftmann@28054
  1099
        pr_typ (INFX (1, X)) ty1,
haftmann@28054
  1100
        str "->",
haftmann@28054
  1101
        pr_typ (INFX (1, R)) ty2
haftmann@28054
  1102
      ]))
haftmann@28054
  1103
  #> Code_Target.add_syntax_tyco target_OCaml "fun" (SOME (2, fn pr_typ => fn fxy => fn [ty1, ty2] =>
haftmann@28054
  1104
      brackify_infix (1, R) fxy [
haftmann@28054
  1105
        pr_typ (INFX (1, X)) ty1,
haftmann@28054
  1106
        str "->",
haftmann@28054
  1107
        pr_typ (INFX (1, R)) ty2
haftmann@28054
  1108
      ]))
haftmann@28054
  1109
  #> fold (Code_Target.add_reserved target_SML) ML_Syntax.reserved_names
haftmann@28054
  1110
  #> fold (Code_Target.add_reserved target_SML)
haftmann@28054
  1111
      ["o" (*dictionary projections use it already*), "Fail", "div", "mod" (*standard infixes*)]
haftmann@28054
  1112
  #> fold (Code_Target.add_reserved target_OCaml) [
haftmann@28054
  1113
      "and", "as", "assert", "begin", "class",
haftmann@28054
  1114
      "constraint", "do", "done", "downto", "else", "end", "exception",
haftmann@28054
  1115
      "external", "false", "for", "fun", "function", "functor", "if",
haftmann@28054
  1116
      "in", "include", "inherit", "initializer", "lazy", "let", "match", "method",
haftmann@28054
  1117
      "module", "mutable", "new", "object", "of", "open", "or", "private", "rec",
haftmann@28054
  1118
      "sig", "struct", "then", "to", "true", "try", "type", "val",
haftmann@28054
  1119
      "virtual", "when", "while", "with"
haftmann@28054
  1120
    ]
haftmann@28054
  1121
  #> fold (Code_Target.add_reserved target_OCaml) ["failwith", "mod"];
haftmann@28054
  1122
haftmann@28054
  1123
end; (*struct*)