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Commit Graph

1751 Commits

Author SHA1 Message Date
Pontus Leitzler
dc31b401ab internal/lsp/source: avoid panic in rename check
In a case where the type info for an ast.CompositeLit isn't found in
forEachLexicalRef(...) gopls will panic.

e.g. trying to rename "foo" where it is declared in this case:
func fn() {
	var foo bool
	make(map[string]bool
	if foo {
	}
}

Note the missing ')' after make.

This change will skip ast.CompositeLits if the type can't be found, and
that fixes the panic. But it also do rename the identifier as long as it
is possible, and I'm not convinced that we should allow rename at all if
the source can't be compiled.

Updates golang/go#39614

Change-Id: Ibb50b15ce4b31056f2f1da52a4dcab7b8b91a320
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238042
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
2020-06-16 19:50:46 +00:00
Rebecca Stambler
e3971a17a8 internal/gocommand: revert accidental changes from CL 237685
Not sure how these got submitted, I thought I fixed them.

Change-Id: I2ffd4b838d37a110d3b2d9b44c31ef7aa3056a91
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238030
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-16 16:48:58 +00:00
Rob Findley
e258ba4578 internal/jsonrpc2/servertest: minor improvements for closing
Return an actual error when closing the test server, and close at the
jsonrpc2.Conn level, rather than at lower levels.

Change-Id: I0bc153f40ced5dfee9ac26d3ffd666e446b812e5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238197
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-06-16 16:45:34 +00:00
Rob Findley
b1f3cdd652 internal/lsp/regtest: add a regtest for hover handling of GOPRIVATE
Add a regtest to verify that GOPRIVATE identifiers are not given a link
to pkg.go.dev. For efficiency, as well as to exercise dynamic
configuration, do all this in a single regtest.

Updates golang/go#36998

Change-Id: I9102a11312db5c334fdbd30cce9ca2d2e19e9ac2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237938
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-16 15:44:21 +00:00
Rob Findley
2b5917cebf internal/lsp/lsprpc: forward the go environment in initialize requests
The gopls workspace environment defaults to the process environment in
which gopls was started. This means that when switching environments,
gopls can potentially get a different environment when connecting as an
editor sidecar from when forwarding requests to the daemon.

To (hopefully mostly) mitigate this pain point, inject the Go
environment when forwarding the 'initialize' request, which contains
InitializationOptions containing the 'env' configuration. We could go
further and send the entire os.Environ(), but that seems problematic
both in its unbounded nature, and because in many cases the user may not
actually want to send their process env over the wire. Gopls behavior
should *mostly* be parameterized by gopls binary and Go env, and after
this change these should match for forwarder and daemon.

For go1.15, Explicitly set the GOMODCACHE environment variable in the
regtest sandbox. Without this, regtests were failing in the forwarded
environment because they implicitly shared a module cache.

Fixes golang/go#37830

Change-Id: Ic1b335506f8b481505eac9f74c0df6293dc07158
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234109
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-06-16 15:43:56 +00:00
Rebecca Stambler
6aa8f57aac internal/lsp: un-export (*snapshot).Config to limit it to cache
Limiting the Config to the view seems reasonable, considering that it is
only used to run the `go` command. I prefer just having the cache run
go commands, so that source doesn't have to deal with the environment.

This also enables CL 237517.

Change-Id: I639c082592de30e9682dc25cdd12c7751ddb4f97
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237600
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-15 22:28:25 +00:00
Rebecca Stambler
9fe02d1961 internal/gocommand: refactor API to always use *gocommand.Runner
We should always go through the runner to avoid load serialization
errors. This change also updates the comments and uses pointers to
Invocations consistently. This causes a few updates throughout x/tools.

This change also results in a few modifications to the go:generate code
lenses, as they operate on directories rather than file URIs.

Change-Id: I6306e761e68dfdd23f1b410e44aab0ffa85d234c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237685
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-15 22:00:55 +00:00
Rebecca Stambler
e31b568ad1 internal/lsp: plumb fillstruct through analysis
Now that fillstruct is an analyzer, we can simplify the code that calls
it in code_action.go. We introduce a new class of analyzer --
convenience analyzers, which are closer to commands. These represent
suggestions that won't necessarily improve the quality or correctness of
your code, but they offer small helper functions for the user.

This CL also combines the refactor rewrite tests with the suggested fix
tests, since they are effectively the same.

For now, we only support convenience analyzers when a code action was
requested on the same line as the fix. I'm not sure how to otherwise
handle this without bothering the user with unnecessary diagnostics.

Change-Id: I7f0aa198b5ee9964a907d709bae6380093d4ef21
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237687
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-06-15 21:22:08 +00:00
Heschi Kreinick
a2fa627c4b internal/lsp/cache: don't skip x_tests
We were marking normal tests as workspace packages, but pruning x_tests.
Don't do that.

Fixes golang/go#39578.

Change-Id: Ia8eceea38e63ac17e40f50d6837de9c7a668469b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237943
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: zikaeroh <zikaeroh@gmail.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-15 19:08:35 +00:00
Heschi Kreinick
1725ffee6d internal/lsp/cache: hide diagnostics for ignored dirs
The go command ignores go files in specially-named directories like
testdata. We probably still want to try to offer services like
autocomplete and jump-to-definition there, but diagnostics are less
likely to be helpful. As a compromise, just squash diagnostics.

Note that the rules we use are slightly wrong; see the comment on
ignoreFiles for details.

Fixes golang/go#39563.

Change-Id: I0bc00639e68bd71ea55d867af36e07ef4ec780a1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237638
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-15 17:27:23 +00:00
Heschi Kreinick
54c614fe05 internal/imports: continue past parse errors
A user that's editing packages in their workspace may introduce parse
errors (missing package statement), but we still want to be able to add
imports for them. Continue past parse errors.

Fixes golang/go#39315.

Change-Id: I3bbf428e7b9ef32a87258af2dafbe0d7b86b7348
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237686
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-12 22:08:49 +00:00
Josh Baum
a1e2396bbd internal/lsp: port fill struct into analysis framework
The current implementation of the fill struct tool is not a part of
the analysis framework. This commit moves the functionality from the
source directory to the analysis directory.

Change-Id: Ibe37b57f3e6680c8729932dbbe010a4642600e4a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237258
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-06-12 20:33:59 +00:00
Heschi Kreinick
4651fa3054 internal/lsp/debug: show per-package memory usage
Calculate and display very crude memory usage statistics. This is
complicated by various levels of sharing and indirection, so the numbers
should be taken with *large* grains of salt and interpreted mostly by
experts.

Still, the results are interesting and helpful.

Change-Id: Ia9aff974c7d5fddd63df0cfd5cecc08ead33cf84
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236163
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-12 20:10:52 +00:00
Rebecca Stambler
3c1b287bbd internal/lsp: await the initial workspace load in ModHandle
ModHandle races with the initial workspace load if the go.mod file does
not yet exist. We should await for the initial workspace load to
complete before proceeding with update codelenses, etc.

Part of trying to figure out the flakes in golang/go#39504.
Also a few staticcheck fixes, and fix the Windows line endings in
fill_struct.go, because `git gofmt` complains.

Change-Id: Ide21a47137390792d1afb924740cff0bb6f0b764
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237419
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-12 18:21:55 +00:00
Rebecca Stambler
9001f16f58 internal/lsp: cancel the initial workspace load when view shuts down
The error messages from view cancellation clutter up the logs when
testing, especially if you're running a single subtest.

A few quick staticcheck fixes in the CL also.

Change-Id: Ia1ed5360ac754023c589ed526ec0ed3e94a79b2f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237637
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-12 18:06:40 +00:00
Ian Cottrell
742c5eb664 internal/lsp: fix the cache debug page
The cache does not know the sessions associated with it, so the
debug template cannot display them.

Change-Id: I9b043592351ddce097f4e74f3e9aa7a6ad24e613
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237618
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-12 02:23:31 +00:00
Heschi Kreinick
f520afa52e internal/lsp: remove Ignore feature
Ignore ignored the builtin package and files that start with _. The
latter should already be ignored by "go list". The former seems
like too much effort to me. People shouldn't edit random parts of the
stdlib, and ignoring changes to (e.g.) the Error interface seems like
the least of the trouble they can get themselves into.

Remove it for now. If we get complains I'll re-add it, probably by
rejecting the write entirely somewhere.

We incidentally relied on this in the identifier functions; change those
to treat the builtin package slightly more specially.

Change-Id: I005b02a66b1a987c50a3074d53a2d28ff07d3324
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237597
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:55:14 +00:00
Heschi Kreinick
02f7de68dc internal/lsp/cache: vendored packages are not workspace packages
Most people aren't going to edit vendored packages; we don't need to
fully analyze them.

Fixes golang/go#38080.

Change-Id: I9c9a286b5340ecffe976b0ea652f1d3b4de4bd41
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237598
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:31:50 +00:00
Heschi Kreinick
ca43edf915 internal/lsp/cache: intermediate test variants aren't workspace packages
When you write a test in (say) the fmt package, you get a test variant
augmented with the test files. In many cases you also get test variants
of the things the fmt package depends on. The primary test variant,
(fmt [fmt.test]) is interesting to us, because it contains the tests.
But the intermediate variants (testing [fmt.test]) aren't -- the user
can only get to them indirectly. We certainly don't need to fully parse
them.

Treat intermediate test variants as non-workspace packages. This doesn't
accomplish much yet but paves the way for later optimizations.

Updates golang/go#36943.

Change-Id: I1a20abcd2d67767f07132a75a20f098be6f19a76
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236397
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:26:57 +00:00
Heschi Kreinick
ecd3fc4348 internal/lsp: read files eagerly
We use file identities pervasively throughout gopls. Prior to this
change, the identity is the modification date of an unopened file, or
the hash of an opened file. That means that opening a file changes its
identity, which causes unnecessary churn in the cache.

Unfortunately, there isn't an easy way to fix this. Changing the
cache key to something else, such as the modification time, means that
we won't unify cache entries if a change is made and then undone. The
approach here is to read files eagerly in GetFile, so that we know their
hashes immediately. That resolves the churn, but means that we do a ton
of file IO at startup.

Incidental changes:

Remove the FileSystem interface; there was only one implementation and
it added a fair amount of cruft. We have many other places that assume
os.Stat and such work.

Add direct accessors to FileHandle for URI, Kind, and Version. Most uses
of (FileHandle).Identity were for stuff that we derive solely from the
URI, and this helped me disentangle them. It is a *ton* of churn,
though. I can revert it if you want.

Change-Id: Ia2133bc527f71daf81c9d674951726a232ca5bc9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237037
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:11:59 +00:00
Rob Findley
782c6b3cc7 internal/lsp/regtest: fix context for shared server
The shared server was executing on ctx.Background(), which meant it
didn't have a debug.Instance. This resulted in logs being printed to
stderr, due to the fallback behavior of the global exporter.

Fixes golang/go#39130

Change-Id: Ibb968f78d69752452bec71a7abeff808b1cccb04
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237583
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-06-11 19:17:43 +00:00
Rob Findley
7ffd523398 internal/jsonrpc2: try to suppress unnecessary errors on shutdown
Even on successful shutdown, test logs contain a lot of "failed reading
header line: EOF". This can be distracting, or worse, misleading. Do our
best to suppress these error logs.

Updates golang/go#39130

Change-Id: I6ebe61100501f69c7490b418f53871b4e9704a00
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237582
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-06-11 19:17:06 +00:00
Rob Findley
c1702b46e6 internal/lsp/regtest: print RPC logs when verbose output is enabled
Use the -v flag to control whether RPC logs are always printed, rather
than a regtest specific flag.

Updates golang/go#39130

Change-Id: Ie6293815adee4b59defd80cfc015838cfbf2b3e8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235920
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Peter Weinberger <pjw@google.com>
2020-06-11 19:16:16 +00:00
pjw
99be2d6e79 internal/lsp: bring lsp protocol stubs up to date
The only substantial change is data types for CallHeirarchy.

util.ts has changed the hash, and adapted to a new source layout, plus
the usual pointless whitespace changes. code.ts has learned a little more
about typescript ASTs.

Change-Id: I9cb3a9a9034d46f4a479123779da3bb3474e4a42
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237377
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 18:15:06 +00:00
Josh Baum
40866c6c36 internal/lsp/analysis/fillreturns: implement matching in fillreturns
The existing implementation looks for matching types in the declaration
and the leftmost value in the return statement. Instead, the analyzer
now searches across all the values in the return statement to find one
that matches the type in the declaration. Additionally, if a value in
the return statement does not match any type in the declaration, it is
not overriden.

Change-Id: I4d4aed0ef67e59bfd886b44055d523a8c478255c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236962
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 16:18:57 +00:00
Ian Cottrell
54cf04ef09 internal/lsp: decouple client and server debug
This uses log messages to convey information to the debug system, which
has the benefit of logging even if the debug pages are not active and
also not requiring systems to reach into the debug system or require
extra lifetime tracking Not all things are decoupled yet as there are a
couple of places (notably the handshaker) that read information out of
the debug system.

Change-Id: Iec1f81c34ab3b11b3e3d6e6eb39b98ee5ed0d849
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236337
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-11 13:49:48 +00:00
Heschi Kreinick
1fdcbd1300 internal/lsp/source: format fill_struct.go
Change-Id: Iaf238dfba6f51aed0a15f6ef2b231e1a1816f683
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237421
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 03:21:20 +00:00
Matthew Dempsky
2ee2e4c56a go/packages: move TypecheckCgo to packagesinternal
Updates golang/go#16623.
Updates golang/go#39072.

Change-Id: I6612cdac14faa5ad724ceb805e1d6c823b4046ff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237423
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-10 22:20:39 +00:00
Matthew Dempsky
51e3d70dba go/packages: use go115UsesCgo instead of UsesCgo
x/tools half of golang.org/cl/237417.

Updates #16623.
Updates #39072.

Change-Id: Ic31c2cf64dc1b71b70912b9641cf468f60d116f8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237418
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-10 21:22:23 +00:00
Michael Matloob
03e6e36be9 internal/testenv: add a NeedsGoBuild function
This function will skip tests in test environments where
the go command can't be used to build and run binaries.

This will be used by the test in golang.org/cl/236758

Change-Id: Ie61e8890084179b0e999dd377148693395043191
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236920
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-10 16:09:22 +00:00
Pontus Leitzler
8d7dbee4c8 internal/lsp/source: support labeled statements when highlighting loops
When document.Highlight is called with the cursor on a loop statement or
branch statement, gopls doesn't look for labels. Placing the cursor at
the break statement below highlights the inner for loop:

Outer:
for {
    for {
        break Outer
    }
}

By making highlight label aware, and ensure that unlabeled "break" in
"switch"/"select" doesn't highlight the outer loop, this change fixes
loop highlighting.

Adding support for highlight of "switch" and "select" will be handled in
a separate CL.

Updates golang/go#39275

Change-Id: I7014aa7b0dfb1da871863ced611623be995f3944
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236524
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-06-10 05:20:24 +00:00
Ian Cottrell
5359b67ffb internal/lsp: minor protocol cleanup
This moves as much code outside the protocol generator
as possible making it easier to maintain both the code
and the generator.

Change-Id: I7fe932a58facece5bb0bd5a9c158e5cc7d5a277b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236838
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-09 12:41:32 +00:00
pjw
308beac283 internal/lsp: add a way for regtests to look at the diagnostics
regtests can use Await to wait for diagnostic expectations. But sometimes
it is useful (or more robust) to then look at the specific diagnostics.
This change introduces env.DiagnosticsFor, which returns the current
diagnostics for a file.

Change-Id: Iea35d28f6679289795bc853f156aae351279b205
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236837
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-09 09:53:42 +00:00
Agniva De Sarker
6eec81c746 cmd/godoc: support automatic vendoring
Fixes golang/go#35429

Change-Id: I060ccfbed4c3975d1ddc94fda4fadea527b29841
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232958
Run-TryBot: Agniva De Sarker <agniva.quicksilver@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2020-06-09 06:04:08 +00:00
Pei Xian Chee
1b747fd945 internal/lsp: remove debug line
Remove debug line from CL 227437

Change-Id: Ib33dc6eb05039e78b4a0c883f7ad525fe24d3de7
GitHub-Last-Rev: dbd47a0713d3c39cc0d95b1660f9189ae9927755
GitHub-Pull-Request: golang/tools#233
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236919
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-06-08 17:46:01 +00:00
Rebecca Stambler
5123702d80 internal/lsp: fix update code lens and add a regression test
CL 235619 introduced a bug into the command code, resulting in code
lenses suggesting `go mod get` commands. Fix this issue and add an
end-to-end code lens regression test.

Fixes golang/go#39446

Change-Id: I3646aec881b69f43e5320adcb0976b3516a46761
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236841
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-08 16:37:37 +00:00
Ian Cottrell
c42cb6316f internal/lsp: minor cleanup of the client and server debug
This removes the interfaces and the debug structs in the lsprpc package
in favour of just having the debug structs in the debug package.

Change-Id: I67541688444f4ef367007740c5446dcd7be6575f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236198
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-06 01:49:50 +00:00
Ian Cottrell
ce53dc4445 internal/lsp: clean out the debug handling
This removes all the cache/session/view hooks from the lsp and instead
uses normal introspection from the client to find all the entities
rather than keeping shadow copies of the object graph in the debug page
handler.
This required the addition only of the ability to view the sessions open
on a cache and exposing the unique identifier for all the objects, both
of which are useful and reasonable things to have in the API anyway.

Change-Id: Ic19903e7b19832ca79290954ec373d4177789742
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236197
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-06 01:49:14 +00:00
Ian Cottrell
7147197327 internal/lsp: now connection shutdown works, use it
This removes a TODO in the tests and has them check for shutdown
correctly.
This also required adding a Close to editor that does the Shutdown/Exit
sequence rather than just Shutdown.

Change-Id: I6433b76eb2dd1fe40b2332685fdf25ebc4fd4577
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236717
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-06 01:49:04 +00:00
Josh Baum
cef9fc3bc8 internal/lsp/analysis/fillreturns: broaden type equality
The existing implementation contains strict equality rules for
comparing the return type in the function declaration against
the return types in the function body. This causes the code in the
return statement to be incorrectly overriden with its corresponding
zero value type by the fillreturns analyzer.

Fixes golang/go#38707

Change-Id: I07522aaf85f2a5f811a86cbc0951ae61035ff55e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236617
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-06-05 18:10:38 +00:00
Rebecca Stambler
4d5ea46c79 internal/lsp: support go mod vendor as a command
In addition to adding a `go mod vendor` command option, which can be
exposed via an editor client frontend, we show a suggestion to users who
experience the "inconsistent vendoring" error message.

The main change made here is that we save the view initialization error,
and we return it if the view has absolutely no metadata. This seems
reasonable enough, but my fear is that it may lead to us showing
outdated error messages. I will spend some time improving the handling
of initialization errors in follow-up CLs.

Updates golang/go#39100

Change-Id: Iba21fb3fbfa4bca956fdf63736b397c47fc7ae44
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235619
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-04 18:33:45 +00:00
Josh Baum
dcff9671f6 internal/lsp: support code folding for composite literals
The existing implementation does not allow users to collapse composite literals.

Fixes golang/go#38360

Change-Id: If84de6b2c59218bd62fecb81efae2126547def1d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236377
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-04 17:49:48 +00:00
Pei Xian Chee
9b20fe4cab internal/lsp: added a fill struct code action
This code action generates key-value pairs of fields and default values between a struct's enclosing braces.

Fixes #37576

Change-Id: Ia0555164d2164c2bc90bb9ecabbb55042cdd3846
GitHub-Last-Rev: 0e4db3effad7212b6c2b226079fa8fc5464eb0b9
GitHub-Pull-Request: golang/tools#220
Reviewed-on: https://go-review.googlesource.com/c/tools/+/227437
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-06-04 04:23:27 +00:00
Ian Cottrell
0310561d58 internal/lsp: change the hover test to use normal editor methods
It was directly generating messages and sending them on the conn, now it
just uses an editor method like all the other tests.
It was also broken because it never opened the file it was hovering in, so I am
not sure it was testing anything useful before.

Change-Id: I7a1b444015c95c82a0a137d3bb1da661ed9331af
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232983
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 17:07:13 +00:00
Ian Cottrell
ef124de36d internal/jsonrpc2: change StreamServer to operate on Conn instead of Stream
Really the name is wrong now, but this is just a stepping stone towards removing
it entirely in favour of a new listener/dialer/server/client pattern, so I am
minimizing the churn by leaving the names alone for now.

Change-Id: I771d117490763ebe05ed2a8c52d490deeb4d5333
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232878
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 17:07:01 +00:00
Ian Cottrell
d3396bb197 internal/jsonrpc2: change jsonrpc2.Conn to be an interface
This will allow varying implementations and wrappers, and more
closely matches the concepts used in the net library.

Change-Id: I4be4c6efb3def0eda2693f482cbb0c6f776e5642
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232877
Run-TryBot: Ian Cottrell <iancottrell@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 17:06:45 +00:00
Pontus Leitzler
1c0c6cf43e x/tools/internal/lsp/source: avoid panic in failing Highlight test
When testing Highlight the highlight count is checked against expected
number of highlights. If it doesn't match t.Errorf(...) is called and
the test continues.

A few lines below the test ranges over results using the index for both
result and expected result leading to a panic if there are less then
expected highlights.

This change fails fast with t.Fatalf(...) instead to avoid the panic.

Change-Id: I33d0973f3145c307d9084d037ffbb73b244a3acb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236099
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-06-03 17:03:22 +00:00
Rob Findley
a45abac6c9 internal/lsp/regtest: print completed work when a regtest fails
Change-Id: Ib1ea26c352f6e8b397ffda282f45a425a4278ab5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236169
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-03 13:19:21 +00:00
Rob Findley
5298e130f1 internal/lsp: lift up workdone instrumentation to didModifyFiles
Previously, workdone reporting was managed by the goroutine(s) that
compute diagnostics following a file change. The intention was to signal
when diagnostics resulting from file changes were complete.

This was buggy, in two ways:
 + When no snapshots are determined to require diagnosis, no work is
   reported.
 + If multiple snapshots required diagnosis, we'd get multiple work IDs.

Fix this by lifting up the 'work' to the level of didModifyFiles.

Change-Id: I73cf8bf9946dba777650bba9d4d18dad6954620e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235738
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-03 13:18:45 +00:00
Ian Cottrell
8a3674bff3 internal/lsp: change exit handling
Exit now closes the connection rather than exiting the process.
This allows things to shutdown gracefully, and removes special
cases. It also allows the tests to call CloseEditor instead of
just Shutdown, which prevents goroutine leaks.

Change-Id: I26121ba5d393ef74ce0e912611c8b3817e3691ea
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231798
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 13:14:19 +00:00
Ian Cottrell
cc40288be8 internal/lsp: change logging stream to be a framer
Change-Id: Id9e17e98ca00f31424068e875851b5f9008c6fe8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231797
Run-TryBot: Ian Cottrell <iancottrell@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 13:12:46 +00:00
Ian Cottrell
9089ff1aee internal/jsonrpc2: switch to building streams on top of net.Conn
This allows us to rely on higher level functionality like timeouts and
close cancelling pending reads cleanly.

Change-Id: I3a43d21ed35d3da1eb818ea22f8d02201488a1d0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230464
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 13:12:18 +00:00
Ian Cottrell
e84ca95fee internal/jsonrpc2: add the ability to close connections
Also the ability to wait for them to correctly close.

Change-Id: I198c9e24a21c04d5c05bae7a4a0f503429ab0346
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231699
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 13:11:45 +00:00
Rebecca Stambler
2caf76543d internal/lsp/regtest: add a test that reproduces golang/go#38878
This test partially reproduces some strange behavior with creating
new tests files. In particular, it creates a new x test in a package
that already has a test variant and adds content with a missing import.

In the test, the import is never added. However, in my own experience
debugging this in VS Code, I see the import get added but the diagnostic
never get removed. One thing at a time though...

Updates golang/go#39315

Change-Id: I724a145688b915d04abd1f21efc6f9a7506be043
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235581
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-01 17:56:30 +00:00
yuichi kishimoto
52effbd89c internal/lsp: fix typo in code comment
Change-Id: I1120517383d0d3d314984ae7ba49cafbee34820d
GitHub-Last-Rev: ed8df77aaa108ef079340718685727f413f2e9d5
GitHub-Pull-Request: golang/tools#230
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235837
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-05-30 23:37:09 +00:00
Rebecca Stambler
a64b766573 internal/lsp: fix a few staticcheck issues
Change-Id: I328d68d2250bc1cc975d8d9d14984c8f03fcd0e5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235618
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-05-29 17:23:31 +00:00
pjw
41453949f3 internal/lsp: regtests for removing files outside the editor
When a file with errors is removed outside the editor, sometimes its
errors are cleared by the editor and sometimes they are not. If the file
is still open in the editor gopls does not clear the errors, taking the
editor's version as the truth. Otherwise the errors are cleared.
(This behavior depends on the editor sending gopls a notification that
the workspace changed.)

There seems to be no good way yet to test that gopls takes no action after
receiving the didChangeWatchedFiles notification.

Updates golang/go#38878

Change-Id: Ie418dd786d4c5f827cf0665a31f0f9913f7cfdc0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235377
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-29 13:51:22 +00:00
Heschi Kreinick
af9456bb63 all: remove version-specific test files
Now that we're not using build tags any more we can consolidate files.
Do so.

I tried a little to find good places for the moved code, but only a
little.

Change-Id: I6b66afb7cad870471d7d4a3d86c13fadb94a40e1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235457
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-28 17:13:50 +00:00
Heschi Kreinick
8e7acdbce8 all: replace build tags in tests with testenv helper
Many tool features, particularly modules-related, require particular Go
versions. Build tags are unwieldy, requiring one-off test files which
break up test organization.

Add a suite of testenv functions that check what Go version is in use.
Note that this is the logical Go version, as denoted by the release
tags; it should be updated at the beginning of the release cycle per
issue golang/go#38704.

For ease of reviewing, I'll merge/delete files in a followup CL.

Change-Id: Id85ce0f83387b3c45d68465161cf88447325d4f2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234882
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-27 18:32:53 +00:00
Heschi Kreinick
7527cb292c internal/lsp/source: sort cached package completions by relevance
Cached packages are probably more relevant than uncached packages, but
we still need to go in relevance order, since we'll stop adding results
after we hit the cap.

Fixes golang/go#38461. (Hopefully.)

Change-Id: I555dd5f7568baa8d69760ed5836341a474e94346
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231619
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-27 17:50:47 +00:00
Heschi Kreinick
6a7cf6184f internal/lsp/source: fix cached package name matching
I made a silly mistake and checked the prefix on the import path rather
than the package name, which obviously breaks everything other than
top-level stdlib packages.

Fix that, then tweak the ranking a bit. We now get deep completions, which
is nice, but filled up the results too fast. Now instead of 5 results of
any kind, we give up after 5 packages searched.

Change-Id: I15b293f68f17531077da9ffe791a38ccc0e129f4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231617
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-27 17:50:42 +00:00
Ian Cottrell
688b3c5d9f internal/jsonrpc2: Add Close method to Stream.
Also switched the internals of the stream implementations to using
net.Conn to enable asynchronous closing, not yet exposed int the API.

Change-Id: I57f1c36e7a46729d24f4339ba2fecc3f868e823f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231698
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
2020-05-27 15:00:44 +00:00
Ian Cottrell
c0791ff00b internal/fakenet: add a fake network connection
This adds the ability to make a net.Conn based on a
reader/writer pair.
This is primarily useful for pretending stdin/stdout are a network
connection, but can be used for any reader/writer pair.

Change-Id: Ib398e62e0fac423db04aed27cfc48070bda2b93b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231697
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-27 14:27:59 +00:00
Ian Cottrell
dd5f9d1033 internal/stack: add the leak test
This adds a package for dealing with stacks in tests.
The only function at this time is NoLeak which verifies that a test
does not leak any goroutines, and prints a stack summary if it does.

Change-Id: I284b846f422334b745bef0e96d84138295120a62
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232681
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-27 14:25:42 +00:00
Ian Cottrell
a02cf32866 internal/stack: adding an internal stack dump parsing library
This can be used either to directly parse runtime.Stack output or
process text that includes stack dumps, like test timeouts or panics.
It includes a binary, gostacks that processes stdin to stdout replacing
stack dumps in place.

Change-Id: Id7b1cfd69b8aea36c66f12ec0bdf38b68cba5afb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232658
Run-TryBot: Ian Cottrell <iancottrell@google.com>
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2020-05-27 14:25:21 +00:00
pjw
253fce384c internal/lsp: fix formatting edge cases (36824)
One line legal code like `package x; import "os"; func f() {}` was
being misformatted. In these cases the parse flag ImportsOnly loses
important parts of the code, while full parsing works. Presumably
all these cases are short enough that there is no appreciable penalty
from the extra parsing.

Fixes https://github.com/golang/go/issues/36824

Change-Id: I9a4581d67c590578f8fdea5ed2a2a58e0bc3c40b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234900
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-05-26 20:56:00 +00:00
Bryan C. Mills
2b542361a4 internal/fastwalk: attempt Symlink tests on Windows
Windows does actually support symlinks, but older versions of
Windows only support symlinks when running as an administrator.
Newer versions of Windows support symlinks for all users.

Instead of skipping based on GOOS, first try the Symlink operation.
If it succeeds, we can proceed with the test; otherwise, we can try to
write a regular file to determine whether the problem was the symlink
operation itself or the destination path.

For golang/go#38772

Change-Id: Idaa9592011473de7f514b889859e420a84db6d01
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234537
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2020-05-21 21:19:27 +00:00
Rebecca Stambler
91d71f6c2f internal/lsp/regtest: add a t.Skip for golang/go#36824 regtest
Switching to using a t.Skip means we are more likely to remember to
actually re-enable the test at some point.

Also picked up a staticcheck fix along the way.

Change-Id: I382eaa8d204bee74a7ff46e8a1b11dab567b83ae
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234757
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Peter Weinberger <pjw@google.com>
2020-05-21 15:57:04 +00:00
Muir Manders
cf2d1e09c8 internal/lsp/source: offer smart "append()" completions
Assigning a slice to the appendage of itself is common and tedious
enough to warrant a special case completion candidate. We now offer
smarter "append()" candidates:

    var foo []int
    foo = app<> // offer "append(foo, <>)"
    fo<> // offer "foo = append(foo, <>)"

The latter is only offered if the best completion candidate is a
slice. It is inserted as the second-best candidate because it seems
impossible to avoid annoying false positives if it is ranked first.

I added a new debug option to disable literal completions. This was to
clean up some test logic that was disabling snippets for all tests
just to defeat literal completions. My tests were failing mysteriously
due to having snippets disabled, and it was hard to figure out why.

Change-Id: I3e8313e00a1409840cb99d5d71c593435a7aeb71
Reviewed-on: https://go-review.googlesource.com/c/tools/+/221777
Run-TryBot: Muir Manders <muir@mnd.rs>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-20 22:05:37 +00:00
pjw
57a9e4404b internal/lsp: fix new bug duplicating comments after includes
Fixes https://github.com/golang/go/issues/39147

Change-Id: I6f78efccbabf21dbb00e56a49d88e26ff4733fba
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234584
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-05-19 20:57:26 +00:00
Emrecan BATI
7521f6f425 internal/lsp/cache: show update codelens in go.mod when -mod=vendor
Ignore vendor folder while checking module updates to be able to capture
updates.

Fixes golang/go#38711

Change-Id: I522246459f98c238c2b5cd28e6028f2b94cde7d9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232477
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-19 17:58:26 +00:00
Michael Matloob
10921354bc go/packages: add a Module field to the Package struct
This change introduces Module and ModuleError struct types to the
packages package with the same types as defined in the cmd/go
documentation for module information output by go list (with the
exception of the Module type's Versions and Update fields).
go/packages will fill the module struct with the module information
output by go list. Drivers that support modules can also provide
module information by filling the Module fields in the packages in
their driverResponses.

Fixes golang/go#35921

Change-Id: Icbdf79869f09d26f6a01c3670146ace4f6ffa25e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234219
Run-TryBot: Michael Matloob <matloob@golang.org>
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2020-05-19 14:27:18 +00:00
Rob Findley
0d0afa43d5 internal/lsp/fake: fix broken build due to conflicting changes
fake.Editor.Server was exported, but CL 233117 was rebased on top while
still using the unexported field.

Update the rebased code.

Change-Id: Ie8f1f2c3948a1122b9e30a843cc33c79ef623ea4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234494
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Peter Weinberger <pjw@google.com>
2020-05-19 01:57:57 +00:00
pjw
8979540587 internal/lsp: simplify and correct fixing imports for CodeAction
The code was introducting syntax errors for some edge cases (example in
regtest/import_test.go), and I found it hard to follow.

The new code passes all the tests. There are new regtests to guarantee
no CodeActions are returned for some cases that vim testing noticed.

Change-Id: Ia09da667f74673c11bfe185e4f76a76c66940105
Reviewed-on: https://go-review.googlesource.com/c/tools/+/233117
Run-TryBot: Peter Weinberger <pjw@google.com>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-05-18 22:54:12 +00:00
Rebecca Stambler
8018eb2c26 gopls: update dependencies in the go.mod
Change-Id: Iaf3f9d9d23f3977138978caac800c67c78bc92bd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234338
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2020-05-18 20:39:08 +00:00
Rebecca Stambler
39aadb5b76 internal/lsp: fix docs on hover for var/const blocks
The priorities for which comment to show should be 1) documentation
directly above the var/const, 2) documentation for the var/const block,
3) line comments.

See https://github.com/microsoft/vscode-go/issues/3240.

Change-Id: Ie136f0f25ac8208147070682bb1f3a663d6da25f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234101
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-05-18 19:53:06 +00:00
Heschi Kreinick
259583f2d8 internal/testenv: tolerate missing cgo as needed
-nocgo builders and platforms where cgo doesn't work should skip cgo
tests.

Fixes golang/go#39131.

Change-Id: If596043dd25f824762d782c260f102008562ed42
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234479
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-05-18 19:41:03 +00:00
Rob Findley
4bde419ae8 internal/lsp/regtest: Skip failing/flaky TestRegenerateCgo
Something is making this test deterministically fail in some
environments, such as @bcmills' desktop.

Skip it while I build go at tip and debug.

Updates golang/go#39135

Change-Id: I1bf8c55c5cfca471a904de85936f504313094807
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234480
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-05-18 19:26:01 +00:00
Heschi Kreinick
c79c01b1c5 all: consolidate cgo requirement checks
Many tools test check for the ability to compile cgo programs.
Consolidate them all into testenv.NeedsTool("cgo").

Change-Id: I62c96e7b4dc72df34b8fdbf10326c7d19e0613e8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234108
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2020-05-18 17:24:58 +00:00
Heschi Kreinick
d3bf790afa internal/lsp: add Regenerate Cgo code lens
Now that we support authoring cgo packages better, we need a way to
regenerate the C definitions. Doing it automatically is very difficult;
in particular, referencing a new symbol from the C package may require
regeneration, but we don't want to do that for every typo.

For now, give the user a button and make them push it. We attach a
code lens to the import "C" line. This is vulnerable to the usual
user-didn't-save glitches.

Updates golang/go#35721.

Change-Id: Iaa3540a9a12bbd8705e7f0e43ad0be1b22e87067
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234103
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2020-05-15 22:01:28 +00:00
Heschi Kreinick
444c5ef18e internal/imports: only check first segment for .
An import path like "foo/bar.v1" is still a local path, not an external
package, and should be grouped as such.

Change-Id: I06be3c01076f616a3cdc8e23bc9c056643035ad1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234111
Run-TryBot: Heschi Kreinick <heschi@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-15 21:25:07 +00:00
Rob Findley
0aa9f2fd80 internal/lsp/cmd: clean up remote flag descriptions
The format of descriptions for the `-remote.*` flags were inconsistent.
Clean them up.

Also remove a TODO in lsprpc.go about adding a test for telemetry. That
is enough of a separate concern (and one that is rapidly changing) that
I no longer think this TODO makes sense.

Change-Id: Id14796000634ae4be4b480d0386b1da9069737c4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234113
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2020-05-15 20:48:22 +00:00
Rob Findley
8ddc06776e internal/lsp/source: don't link to packages matching GOPRIVATE in hover
Currently, our hover text by default links point to public documentation
sites (e.g. pkg.go.dev). This doesn't make sense for private repos, so
hide the hovertext link when the import path matches GOPRIVATE.

Implementing this was a little messy. To be optimal I had to thread
the value of goprivate through cache.view, and to be correct I had to
duplicate some code from cmd/go internal.

Regtest will follow after https://golang.org/cl/232983 is submitted.

Updates golang/go#36998

Change-Id: I1e556471bf919fea30132d9642426a08fdb7f434
Reviewed-on: https://go-review.googlesource.com/c/tools/+/233524
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2020-05-15 19:36:02 +00:00
Heschi Kreinick
7d3b6ebf13 internal/lsp/cache: pass UsesCgo to go/types
In CL 229779 I enabled Cgo type checking for go/packages, but we don't
actually type check there. We need to enable it in our own type checking
too.

No test updates because the negative effects are relatively subtle and
caught by an upcoming regtest.

Change-Id: I31691d69eb104cdabfd4fbe0a14b1f3c9741eabb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234102
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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2020-05-15 01:05:26 +00:00
Heschi Kreinick
0951661448 internal/lsp: use TypecheckCgo when possible
When on 1.15+, enable TypecheckCgo. This improves cgo support
significantly, but we'll still have trouble with newly-referenced C
identifiers and changes to the magic comment.

Updates golang/go#35721.

Change-Id: I44dc95ce2d91d552e1e66e3722dc4230ab59fedd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229779
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2020-05-13 17:53:51 +00:00
Richard Miller
866d71a317 internal/lsp/regtest: don't build unix_test for Plan 9
TestBadGOPATH tests for a empty element in the GOPATH list using
"GOPATH=:/path/to/gopath", assuming that ':' is the path list
separator. On Windows the test fails, because Windows path list
separator is ';'. Therefore this test isn't built for Windows.

On Plan 9, os.PathListSeparator is '\000', so the test fails
there too, and should not be built for Plan 9.

Change-Id: Icdc2f8de098c1415103ec6124906ad6c578ad183
Reviewed-on: https://go-review.googlesource.com/c/tools/+/233718
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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2020-05-13 12:28:04 +00:00
Martin Asquino
2bc93b1c0c internal/lsp: add run test code lens
Change-Id: I2c47fa038c81851b2c1e689adc3812b23af55461
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231959
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2020-05-12 13:19:52 +00:00
Rebecca Stambler
aaeff5de67 internal/lsp/regtest: add regression test for golang/go#36960
It's in the build tagged tests because the fix is only in 1.14.

Fixes golang/go#36960

Change-Id: I606dfb4f73735c6db8c48f67f19720d340be8361
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232991
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-05-12 00:15:01 +00:00
Daisuke Suzuki
5485bfc441 internal/lsp/cmd: fix not displaying symbols result
When run in CLI, "DocumentSymbol()" returns "[]protocol.DocumentSymbol"
or "[]protocol.SymbolInformation", so need to handle that as well.

Change-Id: I7885d3c53899103553df57f7f0ceceb2a33ec021
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232557
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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2020-05-11 23:26:04 +00:00
Paul Jolly
1762287ae9 internal/lsp: rename workspace symbol test symbols to avoid clash
In a later CL we include the fully qualified path to a symbol in the
Name field of SymbolInformation. This means that we end up with
matches like:

golang.org/x/tools/internal/lsp/workspacesymbol/b.WorkspaceSymbolVariableB

A fuzzy match against this name using the query "wsym" would match the
"workspacesymbol" of the import path as well as the
"WorkspaceSymbolVariableB" that is the symbol name itself.

Therefore we rename the symbols in the:

    internal/lsp/testdata/lsp/primarymod/workspacesymbol/...

from WorkspaceSymbol* to RandomGopher*, which allows our fuzzy matches
to be more precise.

Change-Id: Idbeb663f5750cae4835b0fdaa77531e30353fb89
Reviewed-on: https://go-review.googlesource.com/c/tools/+/228759
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2020-05-11 20:27:23 +00:00
Paul Jolly
0bd3dbed90 internal/lsp/fake: define Symbol method on Editor
In preparation for later changes to the implementation of the workspace
Symbol method, we add the Symbol method to fake.Editor. This requires
the definition of a number of associated fake types (editor-friendly,
byte-offset-based versions of protocol UTF16-based types) for example
fake.SymbolInformation and the types it references.

We also implement a basic regtest for the Symbol method, exposing Symbol
on regtest.Env like other LSP server methods. To aid with the writing of
Symbol result assertions, we provide some helper functions to simplify
the process of defining matches that are evaluated against the result
set.

Change-Id: If73b493e1e791c8201423a303af8041f5a15ccfc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/228121
Run-TryBot: Paul Jolly <paul@myitcv.org.uk>
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2020-05-11 20:27:07 +00:00
Paul Jolly
ca5866bcf9 internal/lsp: add config option for SymbolMatch
In preparation for later changes to the workspace Symbol method, we add
a separate configuration option keyed by "symbolMatcher" that specifies
the type of matcher to use for workspace symbol requests. We also define
a new type SymbolMatcher, the type of this new option. We require
SymbolMatcher to be a separate type from Matcher because a later CL adds
a type of symbol matcher that does not make sense in the context of
other uses of Matcher, e.g. completion.

Change-Id: Icde7d270b9efb64444f35675a8d0b48ad3b8b3dd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/228122
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-11 19:58:58 +00:00
Rebecca Stambler
8b0f8a7919 internal/lsp/source: handle nil pointer in package name hover
Updates golang/go#38977.

Change-Id: I8cbf0b058d77e749285cfe41b4b49de3764be861
Reviewed-on: https://go-review.googlesource.com/c/tools/+/233177
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2020-05-11 19:44:01 +00:00
Paul Jolly
e48fac377d internal/lsp: change workspace symbols to use session config for matcher
WorkspaceSymbols matches symbols across views using the given query,
according to the matcher Matcher.

The workspace symbol method is defined in the spec as follows:

 > The workspace symbol request is sent from the client to the server to
 > list project-wide symbols matching the query string.

It is unclear what "project-wide" means here, but given the parameters
of workspace/symbol do not include any workspace identifier, then it has
to be assumed that "project-wide" means "across all workspaces".  Hence
why WorkspaceSymbols receives the views []View.

However, it then becomes unclear what it would mean to call
WorkspaceSymbols with a different configured Matcher per View.

Therefore we assume that Session level configuration will define the
Matcher to be used for the WorkspaceSymbols method.

As part of this change we also tidy up lsp_test.go and source_test.go to
remove some repetition.

Change-Id: I444f9a78303ac9d2c8d8ac6496603b5758e4aafd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/228763
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2020-05-11 19:21:19 +00:00
Rob Findley
da4261a3d0 internal/lsp/cmd: use JSON output for the inspect subcommand
I've been using the inspect command to find data about the daemon and
its various sessions while debugging gopls. In practice, however, I
don't simply want to view the debug information: I want to script it.
This change removes the custom output formatting in favor of indented
JSON, so that we can do things like the following:

  tail -f $(gopls inspect sessions | gq -r .logfile)

Which tails the daemon logs for the current gopls binary version.

Change-Id: I8895644b1493862f027e6c4b06e32612a4f3927d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/233357
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2020-05-11 18:25:40 +00:00
Ian Cottrell
01e0872ccf internal/event: improve the logging of events
This extracts the printing code from the log writer so it can be re-used
and then changes the loggers in the lsp to use it.
This means that messages that used to look like

  date:
    message=text

now print as

  date: text

which makes the logs a lot easier to read.

Change-Id: I9dfbae47cdc9aeb7d3ca3279e445f39f2e590827
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232989
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2020-05-11 17:49:55 +00:00
Rebecca Stambler
2212a7e161 internal/lsp: return in the default case in cloneExpr
As a follow-up to CL 232990, return in the default case so that the
compiler will complain if we fail to return.

Change-Id: Ib771dfcd1a67b33fd51508ac183b861c00417efb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232992
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2020-05-09 03:07:07 +00:00
Heschi Kreinick
058404a2dd internal/lsp/source: fix cloneExpr for SelectorExprs
A missing return in the SelectorExpr case meant that cloneExpr would
return the original node, resulting in AST corruption when the caller
modified it.

It might be nice to panic in the default case to prevent this from
happening again, but for now let's just fix it.

Fixes golang/go#38927.

Change-Id: Ib99f2dadecf52007ac9319c480fbd2d636a0474a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232990
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2020-05-08 22:40:54 +00:00
Hana (Hyang-Ah) Kim
9b82503631 internal/lsp/source: return nothing for empty workspace symbol queries
In VS Code, a workspace symbol query with an empty query parameter
is issued as soon as users open the symbol search box. There are many
symbols in a reasonably sized project and the chance that a user finds
a result in the randomly chosen 100 items out of those many symbols is
low. Thus, this first query is often useless.

Ignore this query and return an empty result immediately.

Change-Id: Idc7703c8e460c9115ecbcf198907acc9c82add4d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232986
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-08 20:51:52 +00:00
Richard Miller
19e4049dcd internal/testenv: check that external 'diff' tool is the GNU version
TestVerifyUnified in internal/lsp/diff/difftest requires specific
behaviour of the 'diff' command which is known to be satisfied by
GNU diff. The plan9 'diff' command has no '-u' option, and the
illumos 'diff -u' produces output in a different format. Checking
specifically for the GNU version in the HasTool function ensures
the expected behaviour, and otherwise causes the test to be skipped.

Updates golang/go#38772

Change-Id: I5493fa8cfc48a112dc0b7356618c62d3ccb0366f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232479
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2020-05-08 20:46:49 +00:00
Rob Findley
b8469989bc internal/lsp/fake: fix some messiness around client hooks
While writing the fake editor, I added some state tracking without using
it (log messages, events etc). We have since duplicated this logic in
the regtest package using client hooks.

Fix two messy aspects of this:
 - remove the state tracking in the editor
 - pass in the client hooks when connecting, so that they may be used
   without locking, and so that we do not miss any hooks that may fire
   during session initialization.

Change-Id: I24c17a28e9cfa4fca32b7ddd17c7bf01cbb12e0f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232744
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2020-05-08 18:47:54 +00:00
Rob Findley
88bf40a80d internal/lsp/source: use the setString method when setting options
A couple string options were not using the asString helper. Update them,
and also add a setString helper to be consistent with setBool.

Change-Id: I38caef5b1595a3535b759e5bf1c8d350a8bf061e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232741
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2020-05-08 18:47:48 +00:00
Rob Findley
cb8d9cd245 internal/lsp: support configurable codeLens
Some code lenses may be undesirable for certain users or editors -- for
example a code lens that runs tests, when VSCode already supports this
functionality outside of the LSP. To handle such situations, support
configuring code lenses via a new 'codelens' gopls option.

Add support for code lens in regtests, and use this to test the new
configuration. To achieve this, thread through a new 'EditorConfig' type
that configures the fake editor's LSP session. It made sense to move the
test Env overlay onto this config object as well.

While looking at them, document some types in source.Options.

Change-Id: I961077422a273829c5cbd83c3b87fae29f77eeda
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232680
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2020-05-08 18:47:35 +00:00
Rebecca Stambler
480da3ebd7 internal/lsp: return early in completion where possible
This a pure cut-and-paste.

Fixes golang/go#38868

Change-Id: I2ff07134a8b9f6186bab737caceab8a34a8e2f44
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232677
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2020-05-07 20:50:54 +00:00
Rebecca Stambler
6441d34c3f internal/lsp: fix caching issue with duplicate handles
In (*snapshot).addPackage, we return early if the package handle is
already cached, but we continue building the dependency graph with a
handle passed into addPackage.

This seems fine since both handles should have the same cache key,
but if we clone the snapshot, we will end up dropping the handle that
had the type information on it. It will then have to be recomputed,
causing the skew in the types.Package.

Fixes golang/go#38403

Change-Id: I0e360447a428123fcac444fbea3c2a3232ef941a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232817
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2020-05-07 19:23:25 +00:00
Rob Findley
08cbf656ce internal/lsp/cache: add an UnsavedFiles method to Session
It is useful to know whether the session has any unsaved files, for
example to warn/error when executing a command that interacts only with
files on disk.

Add a new UnsavedFiles method to the Session.

Change-Id: Iea4bf472e3ed6897979306b670eb974a2ee0d3bb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232747
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2020-05-07 17:51:45 +00:00
Richard Miller
ff647943c7 internal/testenv: make ExitIfSmallMachine apply to plan9-arm builders
Some x/tools tests use too much memory (virtual or real) or other
resources to run on "small" builders. Originally only linux-arm
was classified as small. This change addes plan9-arm to the list,
since it normally runs on Raspberry Pi boards with 1GB of RAM.

Partial workaround for golang/go#38772

Change-Id: I93307af10cccf7b1e26d57b9af914c85cf676d43
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232478
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-05-07 17:29:48 +00:00
Hana (Hyang-Ah) Kim
625332f3c5 internal/lsp/protocol: send responses for cancelled requests
LSP https://microsoft.github.io/language-server-protocol/specifications/specification-current/#cancelRequest
expects the server to send back the response even when the request is cancelled.

Gopls LSP protocol implements the cancellation using the context cancellation.
That is, upon a cancellation request from the client, the server calls the
corresponding canceller that cancels the context passed to the handler.
Reusing this cancelled context for the replyer is not safe because code in any layer
can decide to shortcircuit and skip sending the data back to the client.
E.g. https://cs.opensource.google/go/tools/+/master:internal/jsonrpc2/stream.go;l=63

This CL make sure to pass the detached context to the replier.

Alternative, or a better approach to avoid any unexpected side-effect of
using a detached context is to send out the response at the point of cancellation
with a separate context. But that requires more significant code change.

Testing is currently hard, but maybe doable once the current refactoring is
done. Test is left as a TODO.

Change-Id: I4611af00ad913e96b62c6b7180c6673b0465daf9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232300
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-05-07 15:26:07 +00:00
smasher164
a1532b81a2 internal/lsp/cache: avoid string(int) conversion
LoadMode and ParseMode are currently hashed with a string(int)
conversion, but this conversion is now discouraged (see the vet check
'stringintconv' for more information). Since the hash uses the code
point, this change replaces these instances with string(rune(int)).

Updates golang/go#32479.

Change-Id: I0d8e91d073fc34ac9faafe75a0d86cf71a5327d4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232679
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-05-07 05:02:07 +00:00
Rob Findley
be0c89d0d3 internal/lsp/fake: check for file changes after running the Go command
Our fake.Workdir generates synthetic file events for "watched" files
when using its file API, but we have no such hooks for file changes
originating from an external process, in this case the go command.

Previously, we detected a file event by checking go command logs to see
if a go.mod file was created. This is bound to be fragile, so we replace
this with a helper function that walks the working directory looking for
changes.

Change-Id: I2c2176099b97f3a3b25f4aed2b18de13ae05544a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232637
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-07 03:33:52 +00:00
Rebecca Stambler
88e38c1d8d internal/lsp: make sure diagnostics only refer to existing files
We were previously sending diagnostics for nonexistent files, and then
adding them to the snapshot in the process. Remove this behavior, and
add a regression test. Case insensitive filesystems were too confusing
to write a test for, but fortunately, Filippo reported another instance
of this bug, so I used that for the regression test.

Fixes golang/go#38602

Change-Id: I4ef6b51944f3338e838875a5aafffd066e8392f4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230315
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-07 02:01:22 +00:00
Rebecca Stambler
002d754683 internal/lsp/regtest: add test for a GOPATH that's missing an element
Test the case described in
https://github.com/fatih/vim-go/issues/2673#issuecomment-622307211.

Change-Id: I55ff3b8719fc255ec0901cf3778e68b48630323d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232360
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-07 01:58:00 +00:00
Rob Findley
c20a87c16a internal/lsp/fake: split up and rename the Workspace type
The Workspace type has accumulated too much additional functionality of
late: managing the Env, GOPATH, and GOPROXY in addition to the working
directory. Additionally, the name 'Workspace' can easily be confused
with 'workspaceFolder' in the LSP spec, and they're not quite
equivalent.

Split off a Proxy type to be responsible for the fake module proxy, and
a Workdir type to be responsible for working with the temporary
directory. Rename what remains of 'Workspace' to a more appropriate name
for such a collection of resources: Sandbox.

This is mostly just moving things around, with one significant change in
functionality: previously our three temporary directories (workdir,
gopath, and goproxy) were in separate toplevel directories below
$TMPDIR. Now they are all below a new sandbox temp directory, so that
they are correlated in the filesystem and can be cleaned up with one
call to os.RemoveAll.

Change-Id: I1e160a31ae22f0132355117df941fe65822900eb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230758
Run-TryBot: Robert Findley <rfindley@google.com>
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2020-05-06 18:17:57 +00:00
Rob Findley
9f0e5ee6c7 internal/lsp/fake: skip TestWorkspace_CheckForFileChanges
This test is failing on darwin-amd64-10_12: skip it while I investigate.

Change-Id: I506f54355924e86cf4235b04fd8890f59b48ac33
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232198
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
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2020-05-04 21:58:16 +00:00
Rob Findley
9bfbc38543 internal/lsp: fix incorrect format strings when calling event.Error
I noticed that in a couple places, event.Error was called with a
message containing formatting verb. This was my likely done out of
habit, but is an incorrect use of the API: err is not formatted in the
message but is rather applied as an event label.

Remove the unused formatting verbs.

Change-Id: I52f914da81e338013c7449066e5d9ffa40a0a4c1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232137
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-05-04 19:35:31 +00:00
Rob Findley
1d9c21a7db internal/lsp/regtest: add support for testing generate commands
Our editor interaction for running `go generate` was untested. Add
support for triggering generate from the fake editor, and a simple test.

To enable this, some helpers were added to list Workspace files and
check for file state changes, to avoid having to synthetically create
file events. This workaround is not ideal as it results in a leaky
abstraction: in other cases the regtest may assume that FileEvents are
triggered by workspace interactions (e.g. ws.WriteFile), but in this
case it cannot. Unfortunately the only real solution for this would be
to make file watching more realistic, by polling file state on an
interval or using an actual file watching library. Neither of those
options seemed worthwhile just to keep the fake.Editor API pristine.

A new debugging option is added, SkipCleanup, to allow inspecting
regtest working directories after a test with minimal code change.

Change-Id: I64dceeb21a4eb9eff2b6936e44f80f4bd24b82da
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230313
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2020-05-04 19:25:30 +00:00
Ian Cottrell
33427f1b03 internal/jsonrpc2: rename NewStream to NewRawStream
NewStream implies the default stream type, which it is not.
NewHeaderStream is actually the default choice.

Change-Id: I1744d7e902d27c13393f3b367fe2d29e5d7dc283
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231618
Run-TryBot: Ian Cottrell <iancottrell@google.com>
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Reviewed-by: Jonathan Amsterdam <jba@google.com>
2020-05-04 15:25:39 +00:00
Ian Cottrell
535e1470ec internal/lsp: use %w in error wrappers
This fixes a bunch of fmt.Errorf calls to use %w rather than %v when wrapping
an error with additional context.

Change-Id: I03088376fbf89aa537555e825e5d02544d813ed2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231477
Run-TryBot: Ian Cottrell <iancottrell@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-04 14:52:14 +00:00
Clint J Edwards
6b6965ac5d internal/lsp: add comment completions for remaining exported symbols
This should provide simple name completions for comments
above exported vars, constants, functions, and types.

Can be activated with `ctrl+space` within a comment.

Also fixes a panic introduced in the previous commit when completing comments that occur at the end of a file.

Fixes #34010
Fixes #38793

Demo: https://i.imgur.com/qN82CVA.mp4

Change-Id: If9aaec7ce03a3e085361144bce5c7a66535127d1
GitHub-Last-Rev: b9ac874c7ff3c9a164ba698d0d561141a59e2435
GitHub-Pull-Request: golang/tools#224
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230215
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-04 02:29:51 +00:00
pjw
ed308ab3e7 internal/lsp: avoid showing no-GOPATH-nor-module message so much
If the user's workspace is neither in GOPATH nor a module, and there
are errors in their code, send a message (with ShowMessage) only on
the first load, or when the configuration changes. The previous
behavior sent the message more frequently.

There is a regtest, and two new Expectations for when the fake
editor sees (or does not see) a ShowMessage notification.

Fixes golang/go#37279

Change-Id: I076bd95105359b9310dcf97019e3559159271356
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230897
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-02 20:28:11 +00:00
Robert Findley
542909fd99 internal/lsp/cmd: partially revert "add a flag to disable telemetry"
This reverts commit 17a19b5fe7. The revert
is partial because that change also added the -short flag when running
govim tests, which we preserve as without this the tests often time-out
(and I don't want to increase our test timeout right now).

Reason for revert: telemetry races have been fixed in https://golang.org/cl/226317

Change-Id: I5fcf034c1fe6e2db48994e2f06b73a593c779e54
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231637
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-05-01 20:57:27 +00:00
pjw
2658dc0cad internal/lsp: add a regtest for formatting one-line files
Issue https://github.com/golang/go/issues/36824 complained about
legal go code (e.g., 'package a; func f() {}') that was mishandled
(by being rewritten just as 'package a'). This bug seems to have been
partially fixed, as certified by the new regtests. The comment on
OneLineImports36824 says that the bug would be fixed if gopls
formatted the file before fixing the imports, but it doesn't.

Change-Id: If27fa738e54d9434d5b2f17ed4e52d555cb7c499
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229303
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-01 15:50:19 +00:00
Rebecca Stambler
ab2804fb9c internal/lsp: don't offer suggested fixes for generated files
As suggested on Slack, a better fix for golang/go#38467 would be to hide
suggested fixes on generated files. This way, the diagnostics are still
visible but files are not unintentionally modified.

Also, deleted the SuggestedFixes field on source.Diagnostic, since it's
entirely unused.

Change-Id: I10756471e0f913465b1cccd7f222eea0f4de77fe
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230999
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-05-01 06:56:59 +00:00
Ian Cottrell
d351ea090f internal/event: fix the agent start time
The current use of start time in the cache key prevents re-use of agents under
some circumstances, so we update it later in the exporter instead.

Change-Id: I2f6927d65a0841f77a0ee1b848b5a3b243936083
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231257
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-05-01 00:59:04 +00:00
Muir Manders
f26c0dd982 internal/lsp/source: improve unimported package member ranking
Untyped members from unimported packages are scored the same as typed
members from unimported packages. We depended on the unimported
package relevance to rank the probably-more-relevant typed members
higher. However, there are some unrelated score penalties that can
only be applied to typed candidates, so the untyped candidates ended
up being ranked higher. Fix by increasing the relevance coefficient so
the relevance score overpowers other less important scoring
adjustments.

Fixes golang/go#38104.

Change-Id: Ie43f769a41511f9cc3747ce6936130be7a29cd31
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231238
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-30 22:11:53 +00:00
Rebecca Stambler
2840dafb9e Revert "internal/lsp: hide analysis diagnostics from generated files"
This reverts commit e4881b2459.

Reason for revert: <CL 230999 has a different approach to this>

Change-Id: I9ec47d858e7db2a66ec8a93063ab950b8553e45b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231042
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-30 19:28:56 +00:00
Ian Cottrell
4b814e0613 internal/event: re-use ocagent exporters
This attempts to detect a Connect call with the same configuration and return
the same exporter.
This mostly affects tests where we end up starting a new ticking go-routine per
test, even though they all have the same configuration. It was noticable that
a goroutine dump of a test would have a very large number of go routines that
were just ticking exporters, making it very hard to see the real work.

Change-Id: Ie8b64b69fce736d2bf3dbadffc1681f7caee6dd8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230463
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-04-30 04:03:29 +00:00
Ian Cottrell
28a3422bd6 internal/jsonrpc2: move the lock into logCommon
This means the lock is no longer held when writing to the underlying
stream.

Change-Id: I4f066ff593e35d771aa989c762712e4dd83a3f81
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231040
Reviewed-by: Robert Findley <rfindley@google.com>
2020-04-30 04:03:07 +00:00
Rob Findley
127c98bd79 internal/lsp/regtest: rearrange runner.go for readability
This is purely moving code: the getRemoteSocket, getTestServer, and
AddCloser funcs were above the more important RunOptions and runner.Run.
Move them closer to their usage.

Change-Id: I6d5b5577ca8ba5cbd5226b195541696967433dec
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230998
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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2020-04-29 21:33:35 +00:00
Heschi Kreinick
290e0af1a2 internal/lsp/regtest: cosmetic fixes
Add issue comments to tests for issues, move a couple constants closer
to their use.

Change-Id: I34fa2643195ae81e463a070952a1a1a4af2c6132
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230997
Reviewed-by: Robert Findley <rfindley@google.com>
2020-04-29 21:16:28 +00:00
Rebecca Stambler
b8428586f4 internal/lsp: handle hover documentation for package declarations
We had previously not been generating documentation on hover for
package declarations or import specs. We do this by adding a few special
cases, since package declarations don't appear in type information.

Throughout, we make the assumption that only one file in a package will
have the documentation for the package. go/doc just appends
documentation as it sees it. We may be able to do better by checking for
a "Package ..." but that still is not guaranteed. Not sure what the
right approach is, so this assumption may be the best option.

Fixes golang/go#38526

Change-Id: Ibc515f8729e1aba0d11090be62371be6b18d0cfa
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230417
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-29 20:57:41 +00:00
Rebecca Stambler
e4881b2459 internal/lsp: hide analysis diagnostics from generated files
Don't show non-vet analyses when they appear in generated files. Vet
analyzers will give useful reports even in generated files.

Fixes golang/go#38467

Change-Id: I0e628760b386553932de4cf1f5ba39784a205b53
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230597
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-29 20:34:34 +00:00
Rob Findley
0c9eba77bc internal/lsp/regtest: add a OnceMet combinator for Expectations
A common problem when writing regtests is that if you have an error in
your expectations, you must wait until the regtest times out to see what
went wrong.

With the integration of additional progress reporting in the LSP server,
we know when diagnostic work should have been completed, and we should
be able to fail tests early once we know that our diagnostic
expectations will never be met.

This CL adds a new OnceMet Expectation, which combines two expecations:
the first is a precondition that must be met before checking the second.
The second is an arbitrary expectation, but is translated as follows:
once the precondition is met, the second condition is checked and any
Unmet verdicts are translated into Unmeetable.

Change-Id: Ie8c677229a347c624e2659a3ef9104304b175243
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229977
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 21:14:28 +00:00
Rob Findley
dbf5ce1eac internal/lsp/regtest: add expository package documentation
Update the regtest docstring to further explain how the package works,
and give a sense for why it exists.

Fixes golang/go#36879

Change-Id: I4df4a286dc835ae56386b6d92128f7ea6c77ffb0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229782
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 21:10:48 +00:00
Rob Findley
12a1c85843 internal/lsp/regtest: rename and document some symbols
Minor cleanup for the regtest package:
 - EnvMode is renamed to Mode, because it's really a server mode and not
   directly related to the Env type.
 - Modes are better documented.

Change-Id: Ia3aedfc70b665ea75a66731a72e4e87ae79db298
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229781
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 21:10:38 +00:00
Rob Findley
317da45f2f internal/lsp/regtest: extract Runner to a new file
The file length of env.go is getting hard to manage, so factor out the
test Runner to a new file.

Also move Runner.Close to the bottom of the file to have a more logical
progression.

Change-Id: Ifebea3277d826e9456aa02507a8349746386eb03
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229780
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 20:47:08 +00:00
Rob Findley
46dc332f25 internal/lsp: instrument work done reporting to use in regtests
In order for regtests to wait until file diagnostics are complete,
instrument diagnostics with verbose WorkDone reporting. In order for
this to be granular enough for use, the modification source needed to be
threaded through to the didModifyFiles function (which is where the
diagnostic goroutine is spun off).

A new expectation is added: CompletedWork, to allow specifying that a
specific work item has been completed. The problem with using
NoOutstandingWork was that it required a continuous chain of work to
prevent the regtest from succeeding when the bug was present, meaning
that by the time we have sent the didChange notification successfully
the server must have started work on its behalf. This was inherently
racy, and too tricky to get right.

Additionally, a couple bugs are fixed:
 - EmptyDiagnostics is corrected to account for the case where we have
   received zero diagnostics for a given file.
 - A deadlock is fixed in Await when expectations are immediately met.

Updates golang/go#36879
Fixes golang/go#32149

Change-Id: I49ee011860351eed96a3b4f6795804b57a10dc60
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229777
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 20:46:32 +00:00
Rob Findley
9938a07982 internal/lsp: factor out progress reporting to a new WorkDone handle
Our current usage of WorkDone progress reporting (new in v3.15 of the
LSP spec) is in reporting progress on `go generate` commands. In
preparation for using this API more widely, factor out the reporting API
from the current io.WriteCloser wrapper (workDoneWriter).

Change-Id: Ib528093d81d4fc065528df90e100859e850b10df
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229459
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 20:46:18 +00:00
Heschi Kreinick
e9a00ec821 internal/lsp/cache: correctly split env vars
We were using strings.Split on env vars, which did bad stuff when the
var contained an =, e.g. GOFLAGS=-tags=foo. Only split on the first =.

Irritatingly, this breaks only `go mod` commands, so almost nothing in
gopls failed, just organize imports and the `go.mod` code lens stuff.

Fixes golang/go#38669

Change-Id: I8d28c806b77a8df92100af1fa4fbcca5edf97cff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230560
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TryBot-Result: Gobot Gobot <gobot@golang.org>
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2020-04-28 18:55:08 +00:00
Ian Cottrell
006b16f6cf internal/lsp: share common command line test functionality
This moves the common code from the cmd and gopls tests to the shared cmdtest package, they were starting to drift apart.
This change was extracted from another larger cl where I was trying to work out why it broke in one but not the other.

Change-Id: I554ce364f4152e6b61f989da8162d968426d4ae5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230301
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 14:04:16 +00:00
Rob Findley
7ae4988eb4 internal/lsp/fake: clean up Workspace.proxydir on close
This change was unfortunately lost while rebasing, resulting in a lot of
unremoved directories.

Change-Id: Icc1b667e31ac85e617b1c3a8d7c58f78e999d151
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230314
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-28 02:10:58 +00:00
Rebecca Stambler
352a5409fa internal/lsp: handle different package names in signature help
There were a few cases where we were not properly qualifying package
names, particularly if the original package had a named import. Now,
we map between these names correctly - handling the case of multiple
packages that need to be qualified. This requires applying edits to
*ast.SelectorExprs, as well as *ast.Idents.

We still do not fully qualify unimported packages, and likely won't,
unless that's an issue for many users.

Updates golang/go#38591

Change-Id: I966a4d1f936f37ede89362d03da3ff98d8952a06
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229979
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-27 20:59:12 +00:00
Rebecca Stambler
e56429333a internal/lsp/cmd: fix the command line query for definition
The definition command-line interface doesn't match the rest of the
commands, because I think we originally wanted to make them all
subcommands of "gopls query". Remove this, since it's no longer in use.

Change-Id: Iee923db6328774f787d539931001e438d1a2ae6e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230299
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-27 20:15:23 +00:00
Rebecca Stambler
e0d5eebdf8 internal/lsp: fix docs on hover for ungrouped package variables
Fixes golang/go#38525

Change-Id: I8833c925663b67b2c82ad4cbf580d1c6f3c7a81d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230305
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-04-27 18:59:06 +00:00
Ian Cottrell
9ea0146da6 internal/jsonrpc2: remove jsonrpc2.ErrDisconnected
It was not very useful, it basically renamed io.EOF under some limited
circumstances, and was only there for the befit of tests.
Instead, the test now checks io.EOF directly, but also checks for
io.ErrClosedPipe which was also happening.
We also make sure we wrap errors rather than replacing them.
This prevents some weird random test failures due to races in the way they were
closed.

Change-Id: I236b03ac5ba16bf763299b95d882cf58b1f74776
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230303
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-04-27 16:39:59 +00:00
Ian Cottrell
a90b7300be internal/event: remove the event.eventType type
Instead of tagging events with their type, instead we infer the type from
the label pattern.
The standard event creators all have a matching test that returns true
if the the labels pattern matches the ones that would be built by the
creator.
Spans and logs already have a unique label pattern, other event types
required a special label marker.
This makes the system much more extensible, and also cleans up some
the API.

Change-Id: I1fbc9ec07aa84ead6c12bbd5ca65b13b605bfa4a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229242
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-04-27 15:30:19 +00:00
Ian Cottrell
bed5418863 internal/event: don't print invalid labels
Change-Id: I781dfbd37aefe352c74d0df0af9da52bbf09fdcc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229989
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-27 14:36:10 +00:00
Rob Findley
479cc23432 internal/jsonrpc2: fix goroutine leak when listener is closed
When jsonrpc2.Serve times out or is cancelled, we leak the goroutine
that is accepting connections, because it is stuck trying to write its
error back to the doneListening channel.

Fix this by adding a context cancellation for the serve func, and
selecting on this context when writing the error.

Change-Id: I3383535f58b44616983816e8b257a975e3c337a7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229978
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-04-27 12:55:06 +00:00
pjw
f3a5411a4c internal/lsp: fix panic when trying to log an event
Formatting keys in labels can panic when a label is constructed with a nil
error. Avoid that by not passing the defective label to event.Log.

Change-Id: I3099a7ac48c5830af1072141f2b619d0e0fbcf5a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229985
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-04-26 10:28:38 +00:00
Muir Manders
8463f397d0 internal/lsp/source: fix false positive "..." in completions
In cases like:

    var v interface{}
    fmt.Println(<>)

Completing to "v" would insert "v..." instead of "v". This was due to
a mixup where we were checking if the variadic type "[]interface{}"
was assignable to the candidate type "interface{}" instead of the
other way around.

Fixes golang/go#38652.

Change-Id: I27c0b50bbf4b895924c8ed2c0c9dd6785e98cbe1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229921
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-04-25 04:34:58 +00:00