NodeJS REPL integration swallows errors

[LPTK]

As we've seen before, such as here: #65 (comment)

When there is a top-level syntax error in the NodeJS REPL, nothing in the test output indicates that anything is wrong. Even the :ShowREPL option does not show the syntax error output.

We should have a way of more effectively debugging such issues. Ideally by properly reporting the error, though that may be annoying to implement. At the very least, :ShowREPL should let us know what's going on by printing all the NodeJS output.

[LPTK]

BTW @chengluyu isn't this fixed now?

[chengluyu]

Yes. It’s fixed. Note that console.log still outputs nothing because it's mixed in the output. For example,

()
//│ res: ()
//│    = []

:escape
def console: { log: anything -> undefined }
//│ console: {log: anything -> undefined}
//│        = <missing implementation>

:ShowRepl
console.log "hello"
//│ ┌ Block at Repro.mls:9
//│ ├── No prelude
//│ └─┬ Query 1/1
//│   ├── Prelude: <empty>
//│   ├── Code: res = console.log("hello");
//│   ├── Intermediate: hello
//│ undefined
//│   └── Reply: [success] undefined
//│ res: undefined
//│    = undefined

But as you commented in #65, Tony made a helper function at ecca9d8

[LPTK]

Ok, thanks for the follow-up.