WIP - adds passing tests

Author: noisyscanner

CHANGELOG.d/non_js_ffi-4587.md

@@ -0,0 +1 @@
+- Add `--ffi-exts` compiler option to allow non-JS FFI module implementations

CONTRIBUTORS.md

@@ -112,6 +112,7 @@ If you would prefer to use different terms, please use the section below instead
 | [@ncaq](https://github.com/ncaq) | ncaq | [MIT license] |
 | [@NickMolloy](https://github.com/NickMolloy) | Nick Molloy | [MIT license] |
 | [@nicodelpiano](https://github.com/nicodelpiano) | Nicolas Del Piano | [MIT license] |
+| [@noisyscanner](https://github.com/noisyscanner) | Brad Reed | [MIT license] |
 | [@noraesae](https://github.com/noraesae) | Hyunje Jun | [MIT license] |
 | [@nullobject](https://github.com/nullobject) | Josh Bassett | [MIT license] |
 | [@osa1](https://github.com/osa1) | Ömer Sinan Ağacan | [MIT license] |

tests/purs/passing/TSFFI.purs

@@ -0,0 +1,8 @@
+module Main where
+
+import Prelude
+import Effect.Console (log)
+
+foreign import functionName :: String -> String
+
+main = log "Done"

tests/purs/passing/TSFFI.ts

@@ -0,0 +1,3 @@
+export function functionName(foo: string) {
+  return foo;
+}