x/tools/gopls: jump to definition on 'return' should go to the result parameter list

[findleyr]

Frequently, when I'm looking at a return statement, I want to jump to the function signature.

In the category of "more LSP operations should work, more of the time", we could make jump to definition on a return statement go to the result parameter list.

[mateusz834]

This would be also nice for break and continue, maybe goto, but not realy needed, because we can always go to definition of the label (it is required).

[findleyr]

@mateusz834 we can do that too. I think whenever there is an obvious possible result for an LSP operation at a position, we should return it. It is a good UX when more operations work, more of the time.

[xzbdmw]

How about make hover works for return to show function signature.

[findleyr]

How about make hover works for return to show function signature.

That's a great idea, too. Hover is probably more useful than definition, actually, but we can do both.

[findleyr]

Hmm, although I do find that hover to be distracting in some editors. In my editor, I make it a manual operation, bound to a keystroke. I wonder if we should be cautious about popping up hover dialogs over everything.

[xzbdmw]

In fact, gopls is already conservative in hover -- rust-analyzer shows definition for every keyword.
Users are able to configure a debounce for hover request, so this should not be a big problem.

[gopherbot]

Change https://go.dev/cl/636855 mentions this issue: gopls/internal/golang: definition support return statements