We err on the side of refreshing package metadata if something goes
wrong getting a file's AST, but we don't want to refresh in the case
of context cancellation. Now we check for that error explicitly.
In particular, I noticed that completions would stop working when
typing quickly. Refreshing the metadata triggers "go list" calls which
can take a long time in certain cases.
Change-Id: I1b0c580e5541b1536a69ccaef241d7e8c5720d60
GitHub-Last-Rev: 6a82bfb586f93ef5e8e5996b11e06ffc7808f529
GitHub-Pull-Request: golang/tools#130
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184977
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>