support nested collections (issue #5)

[sojournerc]

This was a quick and dirty implementation, and could probably use a little refactor for readability.

Took the recursive approach, just had to break apart the methods to be able to recurse the right step in the process.

[sojournerc]

resolves #5

[Ajaxy]

@sojournerc Thanks for the PR! Looks good to me. However, wouldn't be easier just to count []-s at the end and return some kind of collectionDimension from the parseType function? Then we can do just:

  if (isCollection) {
    for (let i = 0; i < collectionDimension; i++) {
      def = {
        type: 'array',
        items: def,
      };
    }
  }

[sojournerc]

@Ajaxy thanks for the feedback.

I've been playing with that approach and it has some limitations:

• The nested ref doesn't get validated (b/c the nested property doesn't get passed through parseSingleProp as it does with the recursive approach.
• For the same reason the nested ref also doesn't get processed correctly into the swagger format

I could do some surgery on parseSingleProp to make those possible for every dimension, but I'm not sure it'd be any clearer/better than the current approach.

Thoughts?

[Ajaxy]

@sojournerc Not sure what you mean by "doesn't get validated". Here is a draft of how I see it may be done, your tests pass: https://github.com/Ajaxy/tinyspec/pull/10/files

[sojournerc]

Ha, that is much easier and cleaner. I got stuck in the idea of recursion, and didn't think to pull all the brackets off the type def.

Anyway, thanks again. I'll close this PR since yours is better and ready.

[Ajaxy]

Merged that one. Thank you too!