Hide `if err != nil { return err}` like goland

[guettli]

I am evaluating vscode and goland at the moment. This feature of goland is nice:

Only if I expand the block, I see

This feature of goland reduces the amout of characters which my eyes need to parse. If you would sum all these
characters which my eyes don't need to parse per day, this would be a lot. A lot less cognitive load.

It would be great, if vscode would support this feature, too.

[hyangah]

@guettli Thanks for the feedback! Can you help us understand exactly what aspect of the folding feature in goland you like?

• Folded by default?
• Unlike VSCode Go that leaves the closing } when folded, goland completely hides {}?
• Or presenting helpful collapsed text e.g. ": err ..." when folded?

(VSCodeGo/gopls currently doesn't utilize the collapsedText feature yet and shows "..." cc @golang/tools-team )

[taqqanori]

l'm just thinking the same, and created an extension, although it uses built-in editor.fold command (leaves } unfolded, no helpful collapsed text).
https://marketplace.visualstudio.com/items?itemName=taqanori.hide-error-cases

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[jogly]

Folded by default?
Unlike VSCode Go that leaves the closing } when folded, goland completely hides {}?
Or presenting helpful collapsed text e.g. ": err ..." when folded?

Hopefully resurrecting this instead of making a new feature request 🙏 . @hyangah - your first two points are what would be most useful to me. The third would be nice to have. The second point is the most painful of the three; the dangling brace makes folding three lines into two not worth the effort. FWIW, I don't care if the braces are hidden or not; it's the trailing brace on it's own line that hurts readability. For example, the following are equivalently useful to me:

if err != nil {...}

if err != nil : err ⤴︎

[suzmue]

The LSP spec also now has (proposed?) support for collapsedText in folding range results as of 3.17.0 https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#textDocument_foldingRange