Source file cmdlinergen.ml
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open Idl
module Gen () = struct
type implementation =
unit
-> ((Rpc.call -> Rpc.response) -> (unit -> unit) Cmdliner.Term.t * Cmdliner.Cmd.info)
list
type ('a, 'b) comp = ('a, 'b) Result.t
type 'a rpcfn = Rpc.call -> Rpc.response
type 'a res = unit
let description = ref None
let terms = ref []
let implement : Idl.Interface.description -> implementation =
fun x ->
description := Some x;
fun () -> !terms
type _ fn =
| Function : 'a Param.t * 'b fn -> ('a -> 'b) fn
| NoArgsFunction : 'b fn -> (unit -> 'b) fn
| Returning : ('a Param.t * 'b Idl.Error.t) -> ('a, 'b) comp fn
let returning a b = Returning (a, b)
let ( @-> ) t f = Function (t, f)
let noargs f = NoArgsFunction f
let pos = ref 0
let term_of_param : type a. a Param.t -> Rpc.t Cmdliner.Term.t =
fun p ->
let open Rpc.Types in
let open Cmdliner in
let pinfo =
Cmdliner.Arg.info
[]
~doc:(String.concat " " p.Param.description)
~docv:
(match p.Param.name with
| Some s -> s
| None -> p.Param.typedef.Rpc.Types.name)
in
let incr () =
let p = !pos in
incr pos;
p
in
match p.Param.typedef.Rpc.Types.ty with
| Basic Int ->
Term.app
(Term.const Rpc.rpc_of_int64)
Cmdliner.Arg.(required & pos (incr ()) (some int64) None & pinfo)
| Basic Int32 ->
Term.app
(Term.const Rpc.rpc_of_int64)
Cmdliner.Arg.(required & pos (incr ()) (some int64) None & pinfo)
| Basic Int64 ->
Term.app
(Term.const Rpc.rpc_of_int64)
Cmdliner.Arg.(required & pos (incr ()) (some int64) None & pinfo)
| Basic String ->
Term.app
(Term.const Rpc.rpc_of_string)
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Basic Bool ->
Term.app
(Term.const Rpc.rpc_of_bool)
Cmdliner.Arg.(required & pos (incr ()) (some bool) None & pinfo)
| Basic Float ->
Term.app
(Term.const Rpc.rpc_of_float)
Cmdliner.Arg.(required & pos (incr ()) (some float) None & pinfo)
| Basic Char ->
Term.app
(Term.const (fun s -> Rpc.rpc_of_char s.[0]))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Unit -> Term.(const Rpc.Null)
| DateTime ->
Term.app
(Term.const Rpc.rpc_of_dateTime)
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Base64 ->
Term.app
(Term.const Rpc.rpc_of_base64)
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Array _ ->
Term.app
(Term.const (fun x ->
let x = Jsonrpc.of_string x in
match x with
| Rpc.Enum _ -> x
| _ -> failwith "Type error"))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| List _ ->
Term.app
(Term.const (fun x ->
let x = Jsonrpc.of_string x in
match x with
| Rpc.Enum _ -> x
| _ -> failwith "Type error"))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Dict _ ->
Term.app
(Term.const (fun x ->
let x = Jsonrpc.of_string x in
match x with
| Rpc.Dict _ -> x
| _ -> failwith "Type error"))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Option _ -> Term.(const Rpc.Null)
| Tuple _ -> Term.const Rpc.Null
| Tuple3 _ -> Term.const Rpc.Null
| Tuple4 _ -> Term.const Rpc.Null
| Struct _ ->
Term.app
(Term.const (fun x ->
let x = Jsonrpc.of_string x in
match x with
| Rpc.Dict _ -> x
| _ -> failwith "Type error"))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Variant _ ->
Term.app
(Term.const (fun x ->
let x = Jsonrpc.of_string x in
match x with
| Rpc.Enum _ | Rpc.String _ -> x
| _ -> failwith "Type error"))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
| Abstract { of_rpc; _ } ->
Term.app
(Term.const (fun x ->
let x = Jsonrpc.of_string x in
match of_rpc x with
| Ok _ -> x
| Error _ -> failwith "Type error"))
Cmdliner.Arg.(required & pos (incr ()) (some string) None & pinfo)
let declare_ is_notification name desc_list ty =
let generate rpc =
let wire_name = Idl.get_wire_name !description name in
let rec inner
: type b.
((string * Rpc.t) list * Rpc.t list) Cmdliner.Term.t
-> b fn
-> (unit -> unit) Cmdliner.Term.t
=
fun cur f ->
match f with
| Function (t, f) ->
let term = term_of_param t in
(match t.Param.name with
| Some param_name ->
let term =
let open Cmdliner.Term in
const (fun x (named, unnamed) -> (param_name, x) :: named, unnamed)
$ term
$ cur
in
inner term f
| None ->
let term =
let open Cmdliner.Term in
const (fun x (named, unnamed) -> named, x :: unnamed) $ term $ cur
in
inner term f)
| NoArgsFunction f ->
let term =
let open Cmdliner.Term in
const (fun (named, unnamed) -> named, unnamed) $ cur
in
inner term f
| Returning (_, _) ->
let run (named, unnamed) =
let args =
match named with
| [] -> List.rev unnamed
| _ -> Rpc.Dict named :: List.rev unnamed
in
let call' = Rpc.call wire_name args in
let call = { call' with is_notification } in
let response = rpc call in
match response.Rpc.contents with
| x ->
Printf.printf "%s\n" (Rpc.to_string x);
()
in
Cmdliner.Term.(const (fun args () -> run args) $ cur)
in
let doc = String.concat " " desc_list in
pos := 0;
inner (Cmdliner.Term.const ([], [])) ty, Cmdliner.Cmd.info wire_name ~doc
in
terms := generate :: !terms
let declare name desc_list ty = declare_ false name desc_list ty
let declare_notification name desc_list ty = declare_ true name desc_list ty
end