grammar support for flowtype is missing about language-babel HOT 12 CLOSED

On holiday at the moment. I will review this when back.

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+1

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I've just committed a grammar change ( but not published) that I think gives you flowtype on functions/fat arrows. No support for let/const/var as this need thinking about. Let me know if it creates problems?

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Strike that!! I seemed to have regressed!

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should I not update to latest version then??

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Yes try it - When I just tested it again I was using someone else's grammar - Doh!! Now I've set it to mine it seems OK.

Don't forget the published version is still the old one. You will have to pull the one from github.

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hmm.. Ok let me try

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Hey, use this file for flow-tests: https://gist.github.com/kastermester/ad79da3e48064effd82e
That with the React source code is probably the best test possible.

(i'm still trying on my own code-base, will report back shortly)

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Ok, so I just tried it and it's not fixed. The colour has changed though.

I don't know how grammars work, but here's the problem:

(array: Array<V>): IndexedIterable<V>;

That is a valid declaration for flow. However language-babel interprets that as JSX and everything after the first <V> becomes one colour. (kind of like the colour of text in a JSX block).
Putting this comment at the end of the line seems to fix the problem:

// </> </>

(one closing tag for each angular bracket used in the line)
Which re-inforces my guess that it is being interpreted as JSX.

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Yeah it's definitely showing as JSX. Thanks for the flow test file above. I think this is going to be pretty difficult with the current grammar. I thought that templates may be an issue. Leave it with me.

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Thanks!

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@nmn, @vith - Just rolled out 0.11.0 with support for flowtype. See #39 and #40 for known problems.

Let me know if you have any issues.

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