mirror of
https://github.com/kanaka/mal.git
synced 2024-09-21 10:37:58 +03:00
dd7a4f55f3
Fixes made to: ada, c, chuck, clojure, coffee, common-lisp, cpp, crystal, d, dart, elm, erlang, es6, factor, fsharp, gnu-smalltalk, groovy, guile, haxe, hy, js, livescript, matlab, miniMAL, nasm, nim, objc, objpascal, ocaml, perl, perl6, php, plsql, ps, python, r, rpython, ruby, scheme, swift3, tcl, ts, vb, vimscript, wasm, yorick. Catchless try* test is an optional test. Not all implementations support catchless try* but a number were fixed so they at least don't crash on catchless try*.
64 lines
1.8 KiB
Forth
64 lines
1.8 KiB
Forth
module REPL
|
|
open System
|
|
open Node
|
|
open Types
|
|
|
|
let rec eval_ast env = function
|
|
| Symbol(sym) -> Env.get env sym
|
|
| List(_, lst) -> lst |> List.map (eval env) |> makeList
|
|
| Vector(_, seg) -> seg |> Seq.map (eval env) |> Array.ofSeq |> Node.ofArray
|
|
| Map(_, map) -> map |> Map.map (fun k v -> eval env v) |> makeMap
|
|
| node -> node
|
|
|
|
and eval env = function
|
|
| List(_, []) as emptyList -> emptyList
|
|
| List(_, _) as node ->
|
|
let resolved = node |> eval_ast env
|
|
match resolved with
|
|
| List(_, BuiltInFunc(_, _, f)::rest) -> f rest
|
|
| _ -> raise <| Error.errExpectedX "func"
|
|
| node -> node |> eval_ast env
|
|
|
|
let READ input =
|
|
Reader.read_str input
|
|
|
|
let EVAL env ast =
|
|
Some(eval env ast)
|
|
|
|
let PRINT v =
|
|
v
|
|
|> Seq.singleton
|
|
|> Printer.pr_str
|
|
|> printfn "%s"
|
|
|
|
let REP env input =
|
|
READ input
|
|
|> Seq.ofList
|
|
|> Seq.choose (fun form -> EVAL env form)
|
|
|> Seq.iter (fun value -> PRINT value)
|
|
|
|
let getReadlineMode args =
|
|
if args |> Array.exists (fun e -> e = "--raw") then
|
|
Readline.Mode.Raw
|
|
else
|
|
Readline.Mode.Terminal
|
|
|
|
[<EntryPoint>]
|
|
let main args =
|
|
let mode = getReadlineMode args
|
|
let env = Env.makeRootEnv ()
|
|
let rec loop () =
|
|
match Readline.read "user> " mode with
|
|
| null -> 0
|
|
| input ->
|
|
try
|
|
REP env input
|
|
with
|
|
| Error.EvalError(str)
|
|
| Error.ReaderError(str) ->
|
|
printfn "Error: %s" str
|
|
| ex ->
|
|
printfn "Error: %s" (ex.Message)
|
|
loop ()
|
|
loop ()
|