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Commit Graph

1214 Commits

Author SHA1 Message Date
Rebecca Stambler
59e246924e internal/lsp/cache: use snapshot ID and view folder in ModTidyHandle key
Just to be safe, the snapshot ID and view's folder should be enough to
uniquely identify the ModTidyHandle.

Change-Id: Ie3a0dc64bf16bcc8e4eb75af107481c07de81967
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217657
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-04 06:02:07 +00:00
Heschi Kreinick
cf5ba95194 internal/imports: stop leaking listeners
(*dirInfoCache).ScanAndListen saves a listener when it's called. That
listener is a chain of callbacks that leads all the way back up to the
original caller, i.e. the gopls completion code. It needs to unregister
that listener, but in cases where the context was cancelled before it
finished its initial walk of the cache, it failed to. In gopls' case,
that means retaining the entire state of the workspace as of completion
triggering.

Return a real stop function on all paths.

Change-Id: Iff3046e627b1fa89f576371c4742fee6fdca7589
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217677
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-04 05:47:48 +00:00
Rebecca Stambler
35ac94b00d internal/span, internal/lsp: fix URI escaping
We had previously worked around a VS Code URI bug by unescaping URIs.
This is incorrect, so stop doing it and then add a specific workaround
just for that one bug.

Fixes golang/go#36999

Change-Id: I92f1a5f71749af7a6b1020eee1272586515f7084
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217599
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-04 00:54:49 +00:00
Heschi Kreinick
49e540660c internal/lsp/debug: serve cache entry counts
We seem to be leaking cache entries. A simple status page will help us
confirm that.

Change-Id: I485bfff6ebfb5d30655554487583e15a3f49f9a4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217597
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-03 22:21:18 +00:00
Rebecca Stambler
ab391d50b5 internal/lsp: don't show links in hover for test functions
source.Identifier previously was used for references and rename, so it
needed to take a package policy. Now, it's only used for definition and
hover, so it should always be the narrowest package handle. We can use
this fact to determine if the identifier is located in its declaring
package, and if that package is a test variant, we don't link to the
documentation on pkg.go.dev, since it doesn't exist.

Change-Id: I5686828858a3feafb8ff2e4c5964b562f66db9fa
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217137
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-03 21:56:10 +00:00
Rohan Challa
33212cd6a0 internal/lsp: aggregate diagnostics before publishing them
This change aggregates all the diagnostics before publishing them to the client. This also updates the lsp_test to use lsp.Diagnose vs source.FileDiagnostics, unless lsp.Diagnose doesn't return any results.

Change-Id: I39959b50af3f65fce5d8e15fb138ccc019ce8073
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217338
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-03 19:35:11 +00:00
Rohan Challa
a014e0aa6a internal/lsp: skip packages load for auxilary go.mod changes
This change will skip packages.load calls when a go.mod file changes if that go.mod file is not the go.mod file associated with the view.

Change-Id: I23a214a89203dd58417f3e2f69725ce3b669a5ca
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217238
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-03 17:58:37 +00:00
Rohan Challa
c4cbd3b08f internal/lsp: add diagnostics in .go files for missing deps in go.mod
This change adds diagnostics to imports in .go files that are missing the dependency in the go.mod file. The quick fix that adds the appropriate require statement is coming in a follow up CL.

Updates golang/go#31999

Change-Id: I314cdbe8e3dd27da744ca0391e7a6e5dc1ebaa77
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216277
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-03 17:57:15 +00:00
Rebecca Stambler
2de6fe5e3e internal/lsp: return error if there is no builtin package
When we stopped returning an error from awaitInitialized, we didn't
handle this case in LookupBuiltin.

Fixes golang/go#36975.

Change-Id: I9668a7148f60ca1f9cad953d46caf6ec5500541e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217399
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-02-03 17:52:18 +00:00
Peter Weinberger
6682176fbb internal/lsp: remove useless check
err must be nil, as the code checks in line 117.

Change-Id: I23d87bdc9489c9ed249bfa1ac61b1ed722121c6a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217402
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-03 17:13:28 +00:00
Muir Manders
6f24f261da internal/lsp/cache: refactor a few small things
In preparation for some meaningful changes, rework a few things:

- rename "fix" to "fixAST"
- separate "parseExpr" into "parseStmt" and "parseExpr"
- pull out "walkASTWithParent" function

Change-Id: If6c8a249441feda95704f37bc9bde3ef2b64cbd2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216481
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-03 02:30:11 +00:00
Muir Manders
bc0b458b10 internal/lsp/source: improve completion for "make()" args
Fix type inference to expect a type name for the first "make()"
parameter and an integer for later parameters. For example:

   // Previously we expected "[]int{}", now we expect "[]int".
   var _ []int = make(<>)

Note that we don't currently support actually completing to unnamed
type names like "[]int", but this improvement at least eliminates
nonsensical completion suggestions.

   // Previously we had no expectation, now we expect an int.
   var _ []int = make([]int, <>)

Change-Id: Ifd349767662ab6902d3a3ea9e52de7df70cb37c7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217310
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ingo Oeser <nightlyone@googlemail.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-02 23:20:50 +00:00
Rob Findley
ecb101ed65 internal/lsp/debug: support dropping sessions and views
These functions were unimplemented.

Change-Id: Ie95ee4e99511e1e00689eefe6d97df0780b72d2f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217090
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-31 21:12:09 +00:00
Rob Findley
1baf5b43f6 internal/lsp/cache: add Env to debugView
Env is used in the debug template, but not available.

Change-Id: I8e270464aecd927bc553bfbf9e7c85a477833890
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217085
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-31 20:48:24 +00:00
Daisuke Suzuki
5dffee2a89 internal/lsp: change to helper.go to output a formatted file
Use format.Source before output.

Change-Id: I8504fc80defa77aeaab748b9dc65d6382da500a3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217177
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-31 20:35:38 +00:00
Rohan Challa
d6d1b0d853 internal/lsp/cache: add context cancellation check inside importerFunc
This change adds a check inside of the types.ImporterFunc to see if the context has been cancelled.

Updates golang/go#34683

Change-Id: I0f12da0f8158ecda0eec00150ed6ff772c2f89c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217257
Run-TryBot: Rohan Challa <rohan@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-31 18:31:50 +00:00
Rob Findley
b4fe758a9b internal/lsp/source: don't allow mutating DefaultOptions
DefaultOptions was a value type, but held map values. This CL changes it
to a function that returns an Options value that has new instances of
all reference types. It would be better if this function returned a
pointer, but that change ended up being too large. I will need to
refactor handling of options later anyway, in order to support sessions
with differing options for golang.org/issues/34111.

This fixes a race in internal/lsp/tests: internal/hooks/analysis.go
mutates the Analyzers map.

See for example the trybots result at:
https://storage.googleapis.com/go-build-log/0d34f5f0/linux-amd64-race_4ecdf9c8.log

Change-Id: I41be450b590a3f3104ac9a1cb9cb312ea3ff7ff4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217077
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-31 15:48:08 +00:00
Daisuke Suzuki
097c1f2eed internal/lsp: fix typo
Change-Id: I2480725dc20f67bb0427c71dab83a0cbe72832a1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217178
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
2020-01-31 14:37:46 +00:00
Heschi Kreinick
b4207ef493 internal/lsp: use span.URI constructor everywhere
We should never be converting to a URI directly, in case it's encoded or
needs Windows-specific fixes.

Change-Id: I8af272f878e2e4faf428bd7b74b7cba4f65093a3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217086
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-31 00:08:51 +00:00
Rebecca Stambler
0725381040 internal/span: always uppercase the drive letter for Windows
Drive letters are always case-insensitive, so we should standardize them
by always keeping them uppercase.

Updates golang/go#36904

Change-Id: I8de25b175790b01627f947600c1511edf38c316c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217080
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-30 22:30:17 +00:00
Rebecca Stambler
4e65565728 internal/lsp: set workspace packages during (*snapshot).load
We can assume that any package we load directly will be a package in the
workspace, so it's reasonable to set workspace packages at that point.
We're guaranteed not to directly load dependencies, or we may end up
with indirect dependencies in the go.mod file.

Change-Id: I5d406e54da2bc3278b139c75b436d111b5564418
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216726
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-30 00:17:45 +00:00
Rohan Challa
c8253cffe2 internal/lsp/mod: fix test that checks for unchanged go.mod
The test that checks to make sure a user's go.mod file does not change if tempModfile=true is not doing anything. At some point, the go.mod file to test added a go directive. This change removes the go directive from the go.mod file.

Change-Id: I1c4b6b326e99d8fec5c21ac779dcdcd73610f48c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216840
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-29 23:28:05 +00:00
Rebecca Stambler
8a05c59e79 internal/lsp/cache: move shouldLoad function to snapshot.go
Some housekeeping. The shouldLoad function doesn't actually make sense
in load.go.

Change-Id: Idcfade57ab853cdae809c688fa21026a0a432c60
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216727
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-29 22:51:48 +00:00
Heschi Kreinick
716555639d internal/lsp/cache: use telemetry logging for imports refresh
Any context that came in through the lsp protocol package will work, live or dead.

Change-Id: I7566ec07b09e1c8e54a5255ebda8553843cfe974
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216846
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-29 22:22:23 +00:00
Heschi Kreinick
ec2e11d257 internal/lsp/source: check cancellation before analysis
We check cancellation pretty early on in analysis, but not before we
read Options. Checking earlier avoids a race in the command tests.

Fixes golang/go#36699.

Change-Id: I557c0441d70c80e122655be00a03b47080ddb7f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216844
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-29 21:19:39 +00:00
Rebecca Stambler
11f6c2ac6d internal/lsp/cache: delete a few unused functions
Change-Id: I723ae6d2676bdbb4cfc0fec339e87604a032e807
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216725
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-29 21:03:00 +00:00
Rebecca Stambler
207d3de1fa all: fix some staticcheck errors
Updates golang/go#35718

Change-Id: I10bfd5421cd44bb58b8bcaa6e9205040c25f51be
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208257
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-29 04:53:41 +00:00
Heschi Kreinick
e1fd5825ff internal/lsp/cache: handle invalid analysis Pos
The nilness analysis gives us diagnostics with invalid start Pos. We can
just ignore those and log them.

Add a missing error check while I'm in here.

Change-Id: I4a205f253a9e47ec1513ff6299479f52e414a48c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216724
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-29 01:28:57 +00:00
Rebecca Stambler
ae42f3cd5c internal/lsp: recover from a view initialization failure
If an orphaned file is used to recover a workspace package, we should
remove the initialization error and treat the view as correctly
initialized.

Also, stop caching metadata for packages with no files. We have no way
to invalidate it, and it's useless, so just re-load those files as
needed.

Fixes golang/go#36795.
Fixes golang/go#36671.
Fixes golang/go#36772.

Change-Id: I0aee5a43401517b6073d27136cca533160effef2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216637
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-28 22:02:46 +00:00
Rebecca Stambler
345141a368 internal/lsp: provide arguments deterministically to packages.Load
This is just to ensure that arguments are always ordered when passed to
packages.Load.

Change-Id: I2c74673eff31efc31854dc0d306809890f633789
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216600
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-28 00:22:43 +00:00
Heschi Kreinick
9ab2d800b2 internal/lsp/cache: handle go.mod conflicts in go list
The go command gets mad if go.mod has changed since it started, e.g.
because a new dependency was added by a concurrent go list call. Retry
loads if they hit a concurrency problem. See the comment for more
details.

Testing this is awkward. I ran a background script that constantly
modified the go.mod file and observed that gopls waited until it was
killed and then recovered.

Updates golang/go#36772.

Change-Id: I5636c99a5a94b415c4a6fbb71869b07e31d3fed0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216543
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-27 22:30:56 +00:00
Rohan Challa
dd312ab63b internal/lsp: surface missing dependencies for imports not in go.mod
This change sets up the infrastructure to surface the dependencies that are missing in a go.mod file. In a follow up CL, we will use these to add diagnostics to the imports of .go files telling the user to add the dependency to their go.mod file.

Updates golang/go#31999

Change-Id: I697df0d7c6eabfdc2f0c75cb36aa35794647fd13
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214700
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 22:30:17 +00:00
Rebecca Stambler
0ac6790fc6 internal/lsp: only reload orphaned files that belong to the workspace
We were reloading all known files, which resulted in modifications to
user's go.mod files.

Change-Id: I14e86af896d1e75f3fdaaa00b9af8d7fb1d1e9e5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216542
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 21:51:55 +00:00
Rebecca Stambler
7736277c76 internal/lsp: remove shadow analysis from default suite
Mostly because I find it very annoying.
But I imagine lots of people shadow variables intentionally, and it's
very noisy.

Also, fix an error caught by the nilness check while I'm thinkng about
analyses.

Change-Id: I1867c8613194028815666efd879899bb5065c9d7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216541
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 21:40:33 +00:00
Heschi Kreinick
2b5094fbea internal/lsp/cmd: fix gopls check
The command line tool doesn't go through JSON RPC, so it retains type
information that's stripped in the tests. Cut the parameters down to
basic types manually for now. But I don't know why the command line
tests send RPCs if the real thing doesn't.

Fixes golang/go#36769.

Change-Id: I428b40478557ca35a7dae8d02bbcd990411f714f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216539
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 20:51:20 +00:00
Rebecca Stambler
ed30b9180d internal/lsp: don't show list errors unless necessary
The go/packages workaround to hide errors for overlay packages doesn't
seem to work well. It's easier to just hide list errors in gopls
diagnostics unless the package genuinely failed to type-check. Check if
the package has missing dependencies as an approximation of if it is
well-typed.

This required some additional special casing for the import cycle error
detection, which now causes them to have duplicate diagnostics. It's a
rare enough case that this doesn't concern me, but we should clean this
up at some point.

Fixes golang/go#36754.

Change-Id: If12c92fb9a0e0b69b711ae9a509ecb1b2a32255c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216310
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 19:59:09 +00:00
Rebecca Stambler
a644f81d5e internal/lsp: handle metadata reloads for ad-hoc packages
Now that we are reloading metadata for workspace packages by package
path, ad-hoc packages get their metadata reloaded incorrectly. If an
ad-hoc package has no metadata, reload it by reloading the entire
directory.

Fixes golang/go#36753

Change-Id: Ie440f6f76a220009d487b7ceadcf40594643e969
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216307
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 19:36:31 +00:00
Rebecca Stambler
ab094738a9 internal/lsp: fix active parameter for incomplete parentheses
I had originally thought I might be able to use exprAtPos for this,
which is why I ended up eliminating that function when I saw it only had
one use.

One test also had to change in order to fit better with the spec.
Specifically: "If [the active parameter is] omitted or the value
lies outside the range of `signatures[activeSignature].parameters`
it defaults to 0 if the active signature has parameters."

Fixes golang/go#36766.

Change-Id: I400d5b2db2985bfaa5efbcd91225151ca8b5f46a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216309
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 19:24:44 +00:00
Rebecca Stambler
0576458154 internal/lsp: log snapshot IDs, don't log context cancellation
Updates golang/go#36772

Change-Id: Id6f1be9511f37865d5c6efcff10230e03724b27d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216497
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 19:20:44 +00:00
Michael Matloob
f3a16861ae internal/lsp/source: add more go/analysis/passes analyzers to LSP's suite
The LSP already supports a bunch of analyses we have less confidence in
than the vet suite so we should add these too.

Updates golang/go#36639

Change-Id: Ifc37d09e3acd73de021be7b45b3d80fe8c00e0d7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215677
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 19:05:40 +00:00
Rebecca Stambler
4320446551 internal/lsp: permit renaming symbols declared in other packages
Also, add a test for it.

Fixes golang/go#36743

Change-Id: I750ea36189a4ec5c9dc8553e4739b0238c2b29c8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216306
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 18:56:10 +00:00
Rebecca Stambler
bcecb1fcc1 internal/lsp: return context cancellation from LookupBuiltin
Change-Id: If90d111fbe89d2be445b15ec3721d48280540de9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216305
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 18:55:29 +00:00
Peter Weinberger
91d59a9776 internal/lsp: upgrade to current version of LSP
There are a number of new RPCs, for CallHeirarchy, SemanticTokens, and
WorkDoneProgress. Some of the messages now have two slashes, like
'textDocument/semanticTokens/edits'. A few unused RegistrationOptions
are no longer present.

Only generated code has changed. There are no changes any other .go
code.

The typescript code needed a new heuristic for finding the RPCs

Change-Id: Ie6942abac3a0cd60e86afe3fdbc6f6b0e9b30cb0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216537
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-27 18:31:17 +00:00
Heschi Kreinick
8fe064f891 internal/lsp/protocol: actually handle cancellation delivery
CL 215738 didn't work because the canceller was embedded in the
serverHandler, which already had a Deliver method. Add it as an actual
handler instead.

Change-Id: I0c79f1bee67aa3b4da53d92547804de859f1938c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216303
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-24 22:04:29 +00:00
Rebecca Stambler
bdfa187a52 internal/lsp: remove the checkErrors command in internal/lsp/source
Now that the view can report its own validity, we no longer need to have
an extra function to handle that.

Change-Id: Icd22f9b08601bd0fe18be064c43d21be2d6782e7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216144
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 21:19:55 +00:00
Rebecca Stambler
e0332898b9 internal/lsp: push more build-specific logic into the view
The view should really be able to determine if it's valid, not the
source package. Expand moduleInformation to be buildInfo, and use it to
collect additional details.

Use this information to determine if we should load a view's
subdirectories as part of the initial workspace load. If a module is
initialized, we will recreate the view, so we should be fine. Not sure
what will happen if the directory is moved into GOPATH, but that should
be less of a concern (I think).

Fixes golang/go#35818.

Change-Id: Ic8ceedd37386b1653b8965c64d9ba8953778ab78
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216143
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 21:10:25 +00:00
Rebecca Stambler
e23f2f3ad7 internal/lsp: reload metadata for orphaned files
go/packages overlay handling only really works for contains queries
(file=), so our approach of reloading packages by package path (for
workspace packages) wasn't handling newly created packages that need to
be handled through overlays. Workaround this by reloading metadata for
individual files that are missing it by running extra contains queries
(only after the first metadata load for package paths). Be careful not
to reload the same file multiple times if the first load did not succeed.

Somewhat related, clear out `go list` errors in packages that go
through overlay handling, since they will often be rendered irrelevant.
I'm not sure if this is the right move, but if it's not, then we will
have to do extra work to disregard those errors in gopls.

Fixes golang/go#36661.
Fixes golang/go#36635.

Change-Id: Ib83cffcdf8a3e07da0f30e734d5e2c89691e1aba
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216141
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 20:59:04 +00:00
Rebecca Stambler
1b668f2091 internal/lsp: disable literal completion candidates for some clients
If a client doesn't support the snippet format in completion insert
text, they can't take full advantage of the literal completion
candidates. Disable it in those cases, and remove the setting in
internal/lsp/source/options.go.

Fixes golang/go#36655.

Change-Id: Ibc045a0f2945aab753b0187194a03d0c0398dba5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216299
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 20:07:20 +00:00
Peter Weinberger
3f4d10fc73 internal/lsp: small change to helper.go to use ast.IsExported
Use ast.IsExported instead of explicit code.

Change-Id: I1bfabb3c575debb699a51e38f502fcb99a081203
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216297
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-24 17:05:13 +00:00
Rebecca Stambler
e0a7ba33ca internal/lsp/cache: move mod-related functions and file
This is a pure move with no code changes.
Rename parse_mod.go to mod_tidy.go since it's changed a bit.
Move the modfile.go functions into view.go since (1) Heschi doesn't
like spreading methods into multiple files and (2) it only has 2
functions in it anyway.

Change-Id: If0d7e4b50ac22c57302d90d68c2181dbb3ca8b87
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216142
Reviewed-by: Rohan Challa <rohan@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-24 14:45:41 +00:00
Peter Weinberger
9778d966fa internal/lsp: generate boilerplate stubs for type Server
go generate server.go generates server_gen.go which contains 44 boilerplate
stubs implementing the LSP protocol. The Server methods are defined
in protocol/tsserver.go and implemented in the lsp package. server_gen.go
ties the two together.

The generator is in helper/helper.go, and described in helper/README.md.

Change-Id: I120bc658e55a91ec5b07c0c0cf8c188882f0be66
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215979
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-24 14:41:51 +00:00
Rebecca Stambler
5c352bb417 internal/lsp: stop returning errors when we can't find a snapshot
Change-Id: I319021a3339971809b6096b3271aa6b0d94ae336
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216139
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 02:10:10 +00:00
Rebecca Stambler
a4b4a6733a internal/lsp/cache: check go.mod even if tempModFile is false
Missed a pretty key case in CL 216138. Also, I accidentally made it pass
-modfile even when it's not supported.

Change-Id: Ia0d04be7e82b77e1ec3f57ee2fee04e8c14a7c90
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216140
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 01:37:08 +00:00
Heschi Kreinick
5ecc1643ff internal/lsp/cache: fix GOPATH vendoring
We treat package IDs and import paths as semi-interchangeable, which is
wrong when GOPATH vendoring is in use. The only place it hurts us is
during import resolution, which is fixed here. We should always have the
package loaded, so it's just a matter of finding it by searching each
possible vendor location.

Fixes golang/go#36155.

Change-Id: If789092d16fa3d3294b6d8a2bcb980264506c161
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215904
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-24 00:03:48 +00:00
Rebecca Stambler
24841a4f5f internal/lsp: eliminate redundant view.ModFile function
view.ModFiles used to not return the real mod file, even if one existed.
Now, we construct view.moduleInformation even if -modfile isn't
supported.

Change-Id: I03faf2ea521c2f404d4e1ba47f71ae48f3cb08d9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216138
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rohan Challa <rohan@golang.org>
2020-01-23 22:07:07 +00:00
Rebecca Stambler
59ae353e8e internal/lsp: recreate the view when needed
If the initial workspace load fails (due to a lack of a go.mod file or
an invalid go.mod file), we should try to re-load as changes to the
go.mod come in. Rather than retrying within the view, we just drop the
view entirely and try to recreate it. This shouldn't lead to any
noticeable lag, as anything that has been cached can still be reused.

Fixes golang/go#36531

Change-Id: I6e157075e8b3665f0ceef35e051e56ac3c29f286
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216037
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 21:53:29 +00:00
Rebecca Stambler
e873952e15 internal/lsp: check that a file handle is unmodified before read
Address a lingering TODO. A FileHandle read should return errors if the
file has been modified on disk while in use.

Change-Id: I540de9bef575a9ca838f49500665a24b05b4f54c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215981
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rohan Challa <rohan@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 20:52:07 +00:00
Rebecca Stambler
219d3418f5 internal/lsp: batch file changes in didChangeWatchedFiles
Remove the special handling for go.mod file saves. This was only really
added to be extra careful, but our cancellation logic should cope with
this.

Fixes golang/go#31553

Change-Id: I0a69bcdeaf6369697e79aba4689a7b714484ccc2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215908
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-01-23 20:51:52 +00:00
Rebecca Stambler
e54d0edf47 internal/lsp: support batched on-disk changes in source.DidModifyFiles
We don't yet propagate these batched changes in text_synchronization.go,
but this is the next step in moving towards a batched approach.

Updates golang/go#31553

Change-Id: Id6496af9d5422cc50ccb995f81c71ec1886f965a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215907
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2020-01-23 20:28:28 +00:00
Rebecca Stambler
a356fb7f16 internal/lsp: support multiple URIs in (*view).invalidateContent
Caught a number of unused parameters along the way. Hopefully we can
eliminate the containsFileSave boolean soon, since it's a bit annoying
to have to send that through.

Updates golang/go#31553.

Change-Id: I94319d902d329c84cb1c0676322ac04541ad53a0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215906
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 20:19:14 +00:00
Rohan Challa
0043dadf92 internal/lsp: use x/mod to get edits for go.mod quick fixes
This change uses the wonderful functions from x/mod to get the proper edits for the quick fixes on a go.mod diagnostic. It also creates a goModData structure to hold the data thats gets passed into the various parse functions, this will help reduce the large function prototypes that can occur when we decompose the logic. It also refactors the Modfiles() function to return span.URIs vs FileHandles.

Change-Id: Ifa0896442650f2ddbd8fe98d8f231a9e94c3d042
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215097
Run-TryBot: Rohan Challa <rohan@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-23 20:18:34 +00:00
Rohan Challa
2b7b26d7b0 internal/imports: add buildflags to ProcessEnv
This change adds a buildflags variable to the ProcessEnv inside internal/imports. When you run go list with GO111MODULE=on to get information about the package you are in, it will add a go directive to your go.mod file if there is not one. With the tempModfile=on flag, there should be no changes to a user's go.mod file.

Updates golang/go#36247

Change-Id: I817e4c46b4f433d0665fcb7585fcdf4f87049a38
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215978
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 19:46:59 +00:00
Rebecca Stambler
593de60622 go/packages: handle an overlay edge case with test variants
As usual, in debugging the creation of a new file with gopls, I've
encountered a go/packages overlay bug. The issue is:

A file b/b.go with package name "b" exists on disk. A package
b/b_test.go with no content exists on disk. There is an overlay for
b/b_test.go that contains the package name "b". Running packages.Load
for file=b/b_test.go will result in a failure to load package b
[b.test]. This change adds this test to the go/packages tests.

This case is fixed by restricting the fallback logic in
runContainsQueries. We only attempt to construct an ad-hoc package if
the original package was returned with no GoFiles.

Also, a minor change to the gopls error parsing code that fixes a case
in which diagnostics were being sent without corresponding files.

Updates golang/go#36635.

Change-Id: I38680a2cc65ae9c3252294db6b942d031189faf5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215743
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2020-01-23 02:22:18 +00:00
Rebecca Stambler
ba161d9e22 internal/lsp: add tests for references includeDeclaration setting
Make sure to test both modes, as this is the second time we've
accidentally broken this.

Fixes golang/go#36598.

Change-Id: I3993af3d106b18c76c44ada558b2c6cd9cbfcf17
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215777
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 01:39:50 +00:00
Rebecca Stambler
18389cb1f4 internal/lsp: refactor (*snapshot).clone to handle multiple URIs
This is the first in a series of changes to batch file changes. First,
we have to support invalidating a snaphot with multiple files.

Updates golang/go#31553

Change-Id: I7cd83d9280e3274549a72393bb9010c47eb5dd1e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215902
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TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 01:31:03 +00:00
Rob Findley
fb353ca402 internal/lsp/cmd: add a test for client logging
A new test is added to verify that contextual logs are reflected back to
the LSP client. In the future when we are considering servers with
multiple clients, this test will be used to verify that client log
exporting is scoped to the specific client session.

Updates golang/go#34111.

Change-Id: I29044e5355e25b81a759d064929520345230ea82
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215739
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-22 21:55:43 +00:00
Muir Manders
9bae6688e3 internal/lsp/source: support dereferencing for completion
In cases like:

    var j *int
    var i int = <>

We will now provide "*j" as a completion candidate.

Change-Id: I1d35c2dca4864f13f7534e15b17450d784985557
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215358
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-22 21:43:17 +00:00
Rob Findley
78d067421b internal/lsp: remove the Context argument from NewSession
The passed-in Context is not used, and creates the illusion of a startup
dependency problem: existing code is careful to pass in the context
containing the correct Client instance.

This allows passing in a source.Session, rather than a source.Cache,
into lsp server constructors.

Updates golang/go#34111

Change-Id: I081ad6fa800b846b63e04d7164577e3a32966704
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215740
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-01-21 23:07:03 +00:00
Rob Findley
29f64efd55 internal/telemetry/log: correct the docstring for Error
Change-Id: I8077bbdd6f011087f7988fbf04c97c13575afec0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215741
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-21 22:25:47 +00:00
Heschi Kreinick
b3205ff6ff internal/lsp/protocol: handle cancellation delivery
$/cancelRequest is handled out of band in the Request flow, but was
allowed to continue down the Deliver chain. There's no sense in letting
downstream Handlers see it and try to reply like it was a normal
request.

Fixes golang/go#36662.

Change-Id: I8471ac0fdd4f2a08acd87d6e4b83c1f077eb8600
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215738
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-21 21:04:57 +00:00
Rebecca Stambler
fc669b13a2 internal/lsp: eliminate getFileLocked function
Apparently, the convention is to name something "Locked" if the
implementation is mutex is already locked when the function is called.

Turns out there were no callers of getFileLocked anyway, so just delete
that function and rename to getFile.

Change-Id: Ia7a9a620c3eb8eb0ce6b0a44ddb2ed62a604484d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215737
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-21 20:56:39 +00:00
Muir Manders
3e306b7b28 internal/lsp/source: rename "typeInference" to "candidateInference"
This is in preparation for inferring stuff beyond just the expected
candidate type.

Change-Id: I31be9c1e4c82d82b1ff848858042a5edf46594e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215340
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-21 20:43:48 +00:00
Heschi Kreinick
d456b1cd8c internal/imports: pass dummy source for completion functions
The goimports code tries to read source from disk if none is supplied,
but the completion functions don't need source. Pass a dummy slice.

Fixes golang/go#36671.

Change-Id: Ieecc9ee75d39f8f165c7b9764ff49c8334a7fcd2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215681
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-21 20:03:11 +00:00
Rebecca Stambler
62545537a9 internal/lsp: use correct file identities when computing diagnostics
CL 214586 switched to using URIs in error messages instead of file
identities. It wasn't fully correct because the reports were being
allocated for the file identities in the package handle (which may be
outdated).

Fixes golang/go#36601

Change-Id: I4fcfc02df74d94fff49540c784ef816c357e7232
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215680
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-21 20:00:43 +00:00
Rohan Challa
bd79bb77d6 internal/lsp/cache: create infra for caching go.mod diagnostics
This change creates the infrastructure for caching diagnostics. Right now it uses a naive key of the entire snapshot which does not really add any benefit from using the cache. It also moves some code from inside the internal/lsp/mod to internal/lsp/cache.

Updates golang/go#31999

Change-Id: I599ad281baa062448d33ca0ea88ae6e09e10d73e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215021
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-21 19:43:28 +00:00
Heschi Kreinick
9375b12bd8 internal/lsp/cache: fix mod file change check
The modfiles function only works with Go 1.14. When it is enabled,
it reenters the view, causing a deadlock. Stop using it, and move the
process env under a separate lock so to break the deadlock.

Change-Id: I34c528c2be1f32c06b423ead44e90155f60c2214
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215679
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-21 19:24:08 +00:00
Rob Findley
13c74800b9 internal/lsp/protocol: remove unused DocumentUri type
Change-Id: I8fbc8cbbb4e62c1eca4de767d054f5d098f27edd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215497
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-21 14:52:36 +00:00
Iskander Sharipov
dbc83e6dc0 internal/lsp/source: fix typeIsValid() inf recursion
typeIsValid() intended to stop on a named type, but
since we called Underlying(), switch case never caught any
named type. To avoid that, do an early check.

Fixes golang/go#36637

Change-Id: I2700afbb8f9678b4542e2e7dccc3be59b1d9ebdf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215238
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-21 04:27:40 +00:00
Heschi Kreinick
0cba7a3a9e internal/lsp/source: enable unimported completions by default
Fixes golang/go#31906.

Change-Id: I626ff1fe94a171d2280d9deeb4578b5abc759913
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214947
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 22:05:05 +00:00
Heschi Kreinick
fe56e63357 internal/lsp/source: fix ranking of untyped completions
Claiming that untyped candidates matched the type of whatever we were
looking for messed up rankings in found(). The only other places that
use it will all work better with false. Return false.

Updates golang/go#36591.

Change-Id: I5e1e8af7cc5c27422740cbb77f9a4a20edb1e447
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215322
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 21:50:04 +00:00
Rebecca Stambler
1486df0b25 internal/lsp: do not invoke the Go command when checking common errors
There's no need to do this more than once per view.

Change-Id: I3160adc602764204155dd0e506fd554aeb55d639
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215321
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-17 21:23:25 +00:00
Heschi Kreinick
354bea8ca8 internal/lsp/cache: let gopls track go.mod files
We used to read the go.mod file information out of the imports.Resolver.
Now that gopls tracks go.mod itself, we can use that instead. This is a
slight regression, in that go.mods in replace targets will no longer be
watched, but I don't think that's too important.

This allows us to stop reading the ModuleResolver's internals, which
were not sufficiently locked.

Updates golang/go#36605.

Change-Id: I42939e0248cba1f6b3850a003de67fcc11ab10b1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215319
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 21:20:11 +00:00
Rebecca Stambler
633b092c1e internal/lsp: add recency check to avoid sending old diagnostics
This change uses snapshot IDs instead of file versions to determine if
diagnostics are stale.

Fixes golang/go#36601.

Change-Id: I7727a30222fecf2d7733fa013c6cee6338ffd968
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215298
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-17 20:46:10 +00:00
Rebecca Stambler
351fb220e1 internal/lsp: invalidate directories if we have no direct IDs
Previously, we were only invalidating packages in directories if we
didn't have a file handle. We should also invalidate if we have an
unparseable file handle - that is, a file with no content or no package
name.

Fixes golang/go#36608.

Change-Id: Ia12fad962c06ddeeac382185d3220961f5c584e0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215318
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-17 20:35:50 +00:00
Heschi Kreinick
95ece921ff internal/lsp/source: trim file very carefully
Apparently the AST will sometimes give us offsets past the end of the
file. Don't crash when it does.

Fixes golang/go#36610.

Change-Id: I3cfbf8645bfcea94a5d87bca5bef4236d657b2c0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215119
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 20:34:13 +00:00
Muir Manders
a20955124b internal/lsp: consolidate completion sorting
Move completion candidate sorting into internal/lsp/source so
source_test.go and internal/lsp don't have to duplicate the logic.

Change-Id: Ifbe7ca5ad6a5b74020fd1260b4d4f775709968cf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215137
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-17 20:30:43 +00:00
Rebecca Stambler
7ad9cd8f31 internal/lsp/cache: invalidate metadata for x_tests and test variants
Invalidating metadata for reverse dependencies isn't necessary, except
for in the case of test variants and x_tests.

An example:

The only way to reload the metadata for
"golang.org/x/tools/internal/lsp/cache
[golang.org/x/tools/internal/lsp/source.test]" is by reloading
"golang.org/x/tools/internal/lsp/source" with "[-test -deps]". That
means we have to invalidate the metadata for that
"golang.org/x/tools/internal/lsp/source_test" when we invalidating
"golang.org/x/tools/internal/lsp/cache".

Fixes golang/go#36165

Change-Id: Iff0e03a7a46158fbdafaffa091f90ca434700a97
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215117
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-17 17:36:07 +00:00
Rohan Challa
ade7f2547e internal/lsp: add highlighting for import statement
This change adds highlights for imports when the cursor is over the use of that import. It also adds it for the opposite direction when the cursor is on the import, it will highlight uses of that import.

Fixes golang/go#36590

Change-Id: Ifd04d81ec9b4fdf2be1b763f31b44d0ef7d92f47
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215258
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-17 17:07:20 +00:00
Heschi Kreinick
6edc0a871e internal/lsp/source: score in-memory unimported candidates
We were assuming that all in-memory packages were equally useful. That's
not true for projects with a large dependency tree. Call into the
imports code to score them.

While I'm here, score the main module above direct deps.

Updates golang/go#36591.

Change-Id: I07c56dd3ff7338e76f3643e18d35abc1b52d6763
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215023
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 01:23:04 +00:00
Michael Matloob
84cebe1034 go/packages: fix incorrect needtypes and needsrcs logic
This logic is really fiddly and I'm not really 100% sure it's right, though
I've thought about it for quite abit (and added comments to help me reason
through it).

Also always request CompiledGoFiles when NeedTypes is true because we might
need to fall back to loading from source when type data is incorrect.

Fixes golang/go#36441
Fixes golang/go#36547

Change-Id: I1cc27ca2e4401a9abc8502990b0da7d0480f6f84
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214943
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 22:59:55 +00:00
Rebecca Stambler
28ed04f882 go/packages: internally expose ForTests in go/packages
This change eliminates our need to guess what the package under test is
in gopls, since `go list` always knows the answer.

Change-Id: I16e482ed3b452bd57cd478b1f8280fcea56474d3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215020
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-16 22:11:50 +00:00
Heschi Kreinick
1c4842a210 internal/lsp/cache: refresh imports cache in the background
Now that we can detach scans, it's easy to kick off a background refresh
that doesn't block the user. Performance may be a bit worse until the
scan finishes, but that's the price we pay for freshness.

Adaptively rate-limit the refresh rate so that we don't turn the user's
computer into a hot plate.

Change-Id: Icbe8f384f44a219b57465da22d9becc19001eab8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212022
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 20:36:08 +00:00
Rebecca Stambler
872a348c38 internal/lsp: don't log context.Cancelation in diagnostics
Fixes golang/go#34103.

Change-Id: I76e713d54422d31b587cedd0e4359c8b3bc7845e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215019
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-16 18:16:51 +00:00
Muir Manders
0508ad4c83 internal/lsp/source: return obj decl first in find-references
Restore previous behavior where the object's declaration is returned
as the first reference in find-reference calls.

Fixes golang/go#36598.

Change-Id: Ibdeaf9971aa5cb1f3244f6a888fe77bdf386e563
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215057
Run-TryBot: Muir Manders <muir@mnd.rs>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-16 16:57:51 +00:00
Muir Manders
473961ec04 internal/lsp/source: improve completion for "range" and "<-"
Now that we understand object "kind" for builtin generic functions, we
can apply it to a couple more places as well:

// prefer rangeable object kinds
for i := range <> {
}

// prefer channels
<- <>

Change-Id: If9cfba3a06b3abde073a9d397000bb3f3b0e9853
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214678
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 06:24:25 +00:00
Muir Manders
f80fb1dfa1 internal/lsp: refactor find-references and rename
The main goal is to push the package variant logic from internal/lsp
into internal/lsp/source so all users of internal/lsp/source benefit.

"references" and "rename" now have top-level source.References() and
source.Rename() entry points (as opposed to hanging off
source.Identifier()). I expanded objectsAtProtocolPos() to know about
implicit objects (type switch and import spec), and to
handle *ast.ImportSpec generically. This gets rid of special case
handling of *types.PkgName in various places.

The biggest practical benefit, though, is that "references" no longer
needs to compute the objectpath for every types.Object comparison it
does, instead using direct types.Object equality. This speeds up
"references" and "rename" a lot.

Two other notable improvements that fell out of not using
source.Identifier()'s logic:

- Finding references on an embedded field now shows references to the
  field, not the type being embedded.
- Finding references on an imported object now works
  correctly (previously it searched the importing package's dependents
  rather than the imported package's dependents).

Finally, I refactored findIdentifier() to use pathEnclosingObjNode()
instead of astutil.PathEnclosingInterval. Now we only need a single
call to get the path because pathEnclosingObjNode() has the
"try pos || try pos-1" logic built in.

Change-Id: I667be9bed6ad83912404b90257c5c1485b3a7025
Reviewed-on: https://go-review.googlesource.com/c/tools/+/211999
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 06:24:15 +00:00
Heschi Kreinick
7042ee646e internal/lsp/source: always look up mapper when building ranges
Any file could have //line directives in it, which means that we should
never trust a mapper that was looked up for a whole file. Remove the
range conversion helpers that accepted a mapper and look it up on the
spot.

Change-Id: Ic518891fcc1a682b31cbc6d1d4e1e1af1ef21962
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214949
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 01:10:02 +00:00
Muir Manders
49797d04a8 internal/lsp/source: improve completion in type assertions
In cases like:

var foo *someType = bar.(some<>)

We will now complete "some" to "*someType". This involved two changes:

1. Properly detect expected type as *someType in above example. To do
   this I just removed *ast.TypeAssertExpr from
   breaksExpectedTypeInference() so we continue searching up the AST for
   the expected type.

2. If the given type name T doesn't match, also try *T. If *T does
   match, we mark the candidate as "makePointer=true" so we know to
   prepend the "*" when formatting the candidate.

Change-Id: I05859c68082a798141755b614673a1483d864e3e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212717
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 01:06:23 +00:00
Rebecca Stambler
96555e0fa5 internal/lsp/cache: initialize view before LookupBuiltin
This will crash otherwise.

Change-Id: I4fbce813283291792ed21fa5d83186ec59543ff1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214948
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-16 00:42:58 +00:00
Rebecca Stambler
a7dab0268b internal/lsp: diagnose the snapshot on every text synchronization event
This change moves to our ultimate approach of diagnostics the snapshot
on every file change, instead of carefully picking which files and
packages to diagnose. Analyses are shown for packages whose files are
open in the editor. Reverse dependencies are no longer needed for
source.Diagnostics because they will be invalidated when the snapshot is
cloned, so diagnosing the entire snapshot will bring them up to date.

This even works for go.mod files because all of workspace-level `go list`s
will be canceled as the user types, and then we trigger an uncancellable
go/packages.Load when the user saves. There is still room for improvement
here, but it will require much more careful invalidation of metadata for
go.mod files.

Change-Id: Id068505634b5e701c6f861a61b09a4c6704c565f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214419
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-15 23:07:48 +00:00