Commit Graph

3 Commits

Author SHA1 Message Date
Rob Findley 251092de1b internal/lsp/source: compute imports text edits from scratch
Fix the imports text edits by computing it on first principles. This
fixes at least a couple bugs:

 - Incorrect handling of positions between \r and \n with windows line
   endings.
 - Incorrect computation of edits when the imports source prefix is
   synthetically terminated with just \n, but the actual source has
   \r\n.

This is an unsatisfying solution, necessary because of the interaction
of token.File with file termination (token.File does not capture this
information).

Efforts to fix token.File proved complicated, and this is causing
problems for our users, so I think we should do this for now.

For golang/vscode-go#1489

Change-Id: I235caf3960c7201af93800d65546fbab5c6e3f4b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319129
Trust: Rebecca Stambler <rstambler@golang.org>
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2021-07-22 17:13:07 +00:00
Rebecca Stambler 008e477491 internal/lsp, gopls: recover from go-diff panics
This CL handles the panic in the sergi/go-diff library which has not
yet been resolved. We add an error return to the ComputeEdits function
and return an error if there is a panic. I'm not sure if this is the
best approach, but it does seem better than allowing the server to
crash.

A concern would be that the user wouldn't know why their code wasn't
being formatted, but hopefully they might look through the logs and
notice the error message. At least, other features would continue
working. The best fix will definitely be the fix for the panic, but that
is not yet available.

Threading through the error return was not pretty, but I thought it was
probably worth doing since it could be needed in other situations.

Updates golang/go#42927

Change-Id: I7f0c05eb296ef9e93b4de8ef071301cdb9dce152
Reviewed-on: https://go-review.googlesource.com/c/tools/+/278775
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Trust: Rebecca Stambler <rstambler@golang.org>
2020-12-17 16:56:54 +00:00
Ian Cottrell a26de0c301 gopls: use go-diff for edit generation
this supports sub-line diffs and is much faster

Fixes golang/go#33003
Fixes golang/go#32586
Updates golang/go#31937

Change-Id: I02f82c75828e7e3ec804e8beee916893d4c14b3d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/191018
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-10 20:18:25 +00:00