Allow formatting unsaved document

[faustinoaq]

Currently scry can't format an unsaved document, with this PR now you can format even a untitled file 🎉

/cc @crystal-lang-tools/scry

[laginha87]

Awesome 👍

[laginha87]

Tried it out on untitled and unsaved files and worked well. Takes a bit to be able to use after opening the document. After that initial slowdown it works pretty fast.

[faustinoaq]

@laginha87 Thank you for testing it! 👍

After that initial slowdown it works pretty fast.

That slowdown is because scry blocks the requests using analyzer to check diagnostics in your code via crystal build , semantic diagnostics feature and implementation search are pretty slow features. I tried to make them async but seems is harder that I thought #48 (comment)

You can repeat the slowdown if you save the file or go to a definition and then try immediately formatting or symbol listing or completion, you'll see that request get blocked

[faustinoaq]

@keplersj @bmulvihill Can you review this as well? 😅

[faustinoaq]

@bmulvihill Thank you for your review, I'm going to merge it 👍