Issue with Raindrops Exercise?

[JimLynchCodes]

Hi, I just downloaded the "Raindrops" exercise of the reasonML track locally. The npm install command seems to work fine, but when I run npm start I get this output:

> exercism-reasonml@0.1.0 start /Users/jim/Exercism/reasonml/raindrops
> bsb -make-world -w

Error: Raindrops does not have implementation file
>>>> Start compiling 
Error: Raindrops does not have implementation file
>>>> Finish compiling(exit: 2)

And then npm test can't find any tests. 😕

I tried it both with npm v8, v10, and v12 and just got the same error is all cases...

Am I doing something wrong here? Is it just an issue with the exercise? Thanks! 🙏

[tejasbubane]

Hi @JimLynchCodes, you need to create a file src/Raindrops.re with the function raindrops. We have issue #84 for adding stub files which will make the experience better. I just did not get time to work on it yet - will prioritize it soon.

Meanwhile you can create the file & proceed with the exercise. start and test should work as expected. Let me know if you face any more issues.

[JimLynchCodes]

Thanks @tejasbubane!

Yes, I did create the file Raindrops.re in the src folder, and it has this code:

let raindrops: (n: int): string => {
    let output = (n mod 3 == 0 ? "Pling" : "")
        ++ (n mod 5 == 0 ? "Plang" : "")
        ++ (n mod 7 == 0 ? "Plong" : "");

    output == "" ? string_od_int(n) : output
};

I am still getting the same errors though when trying to run it.

When I run npm start I get:

> exercism-reasonml@0.1.0 start /Users/jlynch/Exercism/reasonml/raindrops
> bsb -make-world -w

Error: Raindrops does not have implementation file
>>>> Start compiling 
Error: Raindrops does not have implementation file
>>>> Finish compiling(exit: 2)

When I run npm test I get no tests found:

No tests found, exiting with code 0

Watch Usage
 › Press f to run only failed tests.
 › Press o to only run tests related to changed files.
 › Press p to filter by a filename regex pattern.
 › Press t to filter by a test name regex pattern.
 › Press q to quit watch mode.
 › Press Enter to trigger a test run.

I am using node v12.16.1

Any thoughts on what I'm doing wrong here? 🤔

Btw you can see my project here: https://github.com/JimLynchCodes/Exercism-Solutions/tree/master/reasonml/raindrops

Thanks! ♥️

[tejasbubane]

Hi @JimLynchCodes. So you changed Raindrops.rei (note extension rei) - this is interface file which defines signature of function we are exporting from the Raindrops module - refer: https://reasonml.github.io/docs/en/module#signatures We have prefilled this file with expected function signature.

What you need to do is create another file Raindrops.re (note extention is re not rei) - this file is supposed to have you solution. Hope this helps. Feel free to comment any more issues.