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https://github.com/ProgramSnail/Lama.git
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160 lines
5.4 KiB
OCaml
160 lines
5.4 KiB
OCaml
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open Language
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class pp_pattern fself = object
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inherit [Pattern.t] Pattern.fmt_t_t fself
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method! c_Wildcard ppf _ = Format.fprintf ppf "_"
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method! c_Const ppf _ = Format.fprintf ppf "%d"
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method! c_Named ppf _ name _ =
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(* TODO: should I ignore another argument? *)
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Format.fprintf ppf "%s" name
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method! c_Sexp ppf _ name xs =
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match name,xs with
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| "cons", [l; r] ->
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Format.fprintf ppf "%a@ :@ %a" fself l fself r
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| _ ->
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Format.fprintf ppf "@[%s@ (" name;
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xs |> List.iter (Format.fprintf ppf "%a@ " fself);
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Format.fprintf ppf ")@] "
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method! c_Array ppf _ xs =
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Format.fprintf ppf "@[{ ";
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Format.pp_print_list ~pp_sep:(fun ppf () -> Format.fprintf ppf ", ")
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fself ppf xs;
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Format.fprintf ppf " }@]"
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method! c_ArrayTag ppf _ = Format.fprintf ppf "#array"
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method! c_SexpTag ppf _ = Format.fprintf ppf "#sexp"
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method! c_ClosureTag ppf _ = Format.fprintf ppf "#fun"
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end
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let pp_pattern fmt p =
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GT.transform Pattern.t (new pp_pattern) fmt p
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HEADER_EXPR
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METH(Const, ppf, n, Const n, Format.fprintf ppf "%d" n)
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METH(Var, ppf, s, Var s, Format.fprintf ppf "%s" s)
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METH(Ref, ppf, s, Ref s, Format.fprintf ppf "%s" s)
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METH(String, ppf, s, String s, Format.fprintf ppf "\"%s\"" s)
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METH(Array, ppf, xs, Array xs, [[Format.fprintf ppf "@[{@ ";
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xs |> List.iteri (fun i ->
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if i<>0 then Format.fprintf ppf ",@ ";
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fself ppf);
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Format.fprintf ppf " }@]"]]
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)
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METH(Sexp, ppf, name xs, [[Sexp (name,xs)]], [[(match name,xs with
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| "cons", [l;r] -> Format.fprintf ppf "@[%a : %a@]" fself l fself r
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| _ ->
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Format.fprintf ppf "@[%s@ (" name;
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xs |> List.iteri (fun i x ->
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if i<>0 then Format.fprintf ppf ", ";
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fself ppf x
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);
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Format.fprintf ppf ")@]")
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]])
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METH(Binop, ppf, op l r, Binop (op, l, r), [[Format.fprintf ppf "@[%a@ %s@ %a@]" fself l op fself r]])
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METH(Elem, ppf, l idx, Elem (l,idx), [[Format.fprintf ppf "%a[%a]" fself l fself idx]])
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METH(ElemRef, ppf, l idx, ElemRef (l,idx), [[Format.fprintf ppf "%a[%a]" fself l fself idx]])
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METH(Length, ppf, e, Length e, [[Format.fprintf ppf "@[(%a).length@]" fself e]])
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METH(StringVal, ppf, _x__519_, StringVal _x__519_, [[Format.fprintf ppf "StringVal @[(@,%a@,)@]" fself _x__519_]])
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METH(Call, ppf, f args, Call (f,args), [[Format.fprintf ppf "@[%a @[(" fself f;
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args |> List.iteri (fun i arg ->
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Format.fprintf ppf "%s%a" (if i<>0 then ", " else "") fself arg
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);
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Format.fprintf ppf ")@]@]"]])
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METH(Assign, ppf, l r, Assign (l,r), [[Format.fprintf ppf "@[%a@ :=@ %a@]" fself l fself r]])
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METH(Seq, ppf, l r, Seq (l,r), [[Format.fprintf ppf "@[<v>%a;@ %a@]" fself l fself r]])
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METH(Skip, ppf, , Skip, [[ Format.fprintf ppf "skip" ]])
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METH(If, ppf, c th el, If (c,th,el), [[
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Format.fprintf ppf "@[if %a then @[<v 2>{@,%a@]@ @[<v 2>} else {@,%a@]@ } fi@]"
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fself c fself th fself el]])
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METH(While, ppf, cond body, While(cond,body), [[
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Format.fprintf ppf "@[<v 2>";
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Format.fprintf ppf "while %a do@," fself cond;
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fself ppf body;
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Format.fprintf ppf "@]@ ";
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Format.fprintf ppf "od"]])
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METH(Repeat, ppf, cond body, Repeat(cond,body), [[
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Format.fprintf ppf "@[<v 2>";
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Format.fprintf ppf "repeat@,%a" fself body;
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Format.fprintf ppf "until %a@]" fself cond]])
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METH(Case, ppf, scru cases _ _, Case(scru, cases, _,_), [[
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Format.fprintf ppf "@[<v>";
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Format.fprintf ppf "@[case %a of@ @]@," fself scru;
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Format.fprintf ppf "@[<v 0>";
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cases |> List.iteri (fun i (p,e) ->
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Format.fprintf ppf "@[%s %a@ ->@ %a@]@ " (if i=0 then " " else "|") pp_pattern p fself e
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);
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Format.fprintf ppf "@]";
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Format.fprintf ppf "@[esac@]";
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Format.fprintf ppf "@]"]])
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METH(Return, ppf, e, Return e, [[(match e with
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| None -> Format.fprintf ppf "return"
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| Some e -> Format.fprintf ppf "@[return@ %a@]" fself e)]])
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METH(Ignore, ppf, e, Ignore e, Format.fprintf ppf "@[%a@]" fself e)
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METH(Unit, ppf, , Unit, Format.fprintf ppf "Unit ")
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METH(Scope, ppf, xs body, Scope(xs,body), [[Format.fprintf ppf "@[<v>";
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Format.pp_print_list ~pp_sep:(fun fmt () -> ())
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(fun ppf (name, d) ->
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Format.fprintf ppf "@[%a@]@," (fun ppf -> pp_decl (name,ppf)) d)
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ppf xs;
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fself ppf body;
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Format.fprintf ppf "@]"]])
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METH(Lambda, ppf, args body, Lambda(args, body), [[
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Format.fprintf ppf "@[fun (%a) { %a }@]"
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(Format.pp_print_list ~pp_sep:Format.pp_print_space Format.pp_print_text)
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args
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fself
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body
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]])
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METH(Leave, ppf, , Leave, Format.fprintf ppf "Leave ")
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METH(Intrinsic, ppf, _x__584_, Intrinsic _, Format.fprintf ppf "Intrinsic ")
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METH(Control, ppf, _x__584_, Control _, Format.fprintf ppf "Control ")
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FOOTER_EXPR
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let args ppf =
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Format.fprintf ppf "%a" @@
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Format.pp_print_list ~pp_sep:(fun ppf () -> Format.fprintf ppf ",")
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(Format.pp_print_text)
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let pp_qualifier ppf : Expr.qualifier -> _ = function
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| `Local -> ()
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| `Extern -> Format.fprintf ppf "extern@ "
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| `Public -> Format.fprintf ppf "public@ "
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| `PublicExtern -> Format.fprintf ppf "not implemented %d" __LINE__
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HEADER_DECL
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METH0(DECL, (name,ppf), (qual,item), [[
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let _: [`Fun of string list * Expr.t | `Variable of Expr.t GT.option] = item in
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match item with
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| `Variable(None) -> Format.fprintf ppf "local %s;" name
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| `Variable(Some e) ->
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Format.fprintf ppf "local %s = %a;" name pp_expr e
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| `Fun (ss,e) ->
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Format.fprintf ppf "@[<v>";
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Format.fprintf ppf "@[%afun %s (%a) @]@," pp_qualifier qual name args ss;
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Format.fprintf ppf "@[<v 2>{@,@[%a@]@]@ " pp_expr e;
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Format.fprintf ppf "}";
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Format.fprintf ppf "@]"]]
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)
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FOOTER_DECL
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FIX
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