Fix #160

Author: cannorin

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+- Ts2ocaml now fails when it encounters unknown options, instead of just ignoring it.
+
 ## [1.4.2] - 2022-03-16
 - Fix a bug which caused ts2ocaml to generate invalid type declarations.
 - Fix a bug which causes ts2ocaml to crash when loading mutually-referencing source files.

src/Main.fs

@@ -26,6 +26,7 @@ let main argv =
          .Invoke(argv)
          .wrap(yargs.terminalWidth() |> Some)
          .parserConfiguration({| ``parse-positional-numbers`` = false |})
+         .strict()
          .config()
     |> GlobalOptions.register
     |> Target.register parse Targets.JsOfOCaml.Target.target