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Commit Graph

258 Commits

Author SHA1 Message Date
Rebecca Stambler
73cd2cc3b5 internal/lsp: don't run analyses on the entire view
Running staticcheck on the entire workspace causes a slowdown, and most
likely users don't want to see staticcheck reports for every
subdirectory of their workspace. Only run staticcheck on open files.

Also, fixed a staticcheck warning that showed up along the way. Filed
golang/go#35718 to remind ourselves to fix all of the staticcheck warnings
that showed up when we ran gopls with staticcheck on x/tools.

Finally, made sure that we don't send empty diagnostics when diagnosing
the snapshot on start-up, as that is not necessary.

Change-Id: Ic51d1abfc80b1b53397057f06a4cfd7e2dc930f9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208098
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-25 22:48:44 +00:00
Rebecca Stambler
d7101b74a4 internal/lsp: set version correctly after textDocument/didOpen
The early return logic for didOpen events in
(*snapshot).invalidateContent was preventing the creation of a new
snapshot, which was in turn stopping the versions from being updated.

This exposed a fundamental issue in the way we were calculating
workspace diagnostics. Since we weren't waiting for diagnostics to be
completed for an entire snapshot before replying that the server had
been initialized, snapshots were being cloned without any type
information. For quickfix code actions, we assume that we have all
information cached (since we need to have sent the diagnostics that the
quickfix is mapped to), so we were not finding the cached analysis
results.

To handle this in the short-term, we key analyses by their names, and
then regenerate results as-needed for code actions. This is technically
more correct than simply assuming that we have the analyses cached. In a
follow-up CL, I will send a follow-up that will make sure that
snapshots "wait" on each other to be fully constructed before being
cloned.

Change-Id: Ie89fcdb438b6b8b675f87335561bf47b768641ac
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208265
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-25 19:35:51 +00:00
Heschi Kreinick
ef6787d357 internal/lsp: track and parse non-compiled go files
When packages.Load'ing cgo packages, the authored files show up in
GoFiles, and the generated files show up in CompiledGoFiles. We need the
AST and type information for the latter, since they're the only thing we
can type check. But we also need the contents (and column mapper) for
the authored file so that we can navigate into it.

Store GoFiles in package metadata and checked Packages. Parse the extra
files, just for their mappers. Refactor the View functions a little bit,
since there's only one place that actually needs to find the mapper for
a file.

Updates golang/go#35720.

Change-Id: I9f96872a9a592bf0e11da27ebd8976c6db8752c9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208502
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-25 19:20:50 +00:00
Rebecca Stambler
a911d9008d internal/lsp: only search for references in reverse dependencies
Updates golang/go#35597

Change-Id: I78e83ad0ee1ae3c59a7452c467b3abd34587a845
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208657
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-25 14:46:06 +00:00
Rebecca Stambler
c02aa52d2b internal/lsp: handle first change behavior on the server side
I'm not sure why this was being managed by the view, but delete the code
that handles tracking a file's first change. It is only used to avoid
spamming the user with error messages.

Change-Id: Id95089478ffb7e189d38cbc147e3dde6a1c55c5e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208274
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-22 18:53:53 +00:00
Rebecca Stambler
2189885de9 internal/lsp/cache: disable analysis on dependencies (temporarily)
Right now, we request analyses for files in ParseExported mode, which
doesn't actually produce any meaningful facts. Disable it until we
resolve golang/go#35089, since right now, all this is doing is wasting
memory and CPU.

Change-Id: I6ffb7bdf6c915159b55753b51289cef4bd937603
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208270
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-22 18:46:19 +00:00
Rebecca Stambler
f191eec953 internal/lsp: use snapshot to get reverse dependencies
This change modifies the behavior of the GetReverseDependencies function
used for diagnostics. Since we now return diagnostics for the entire
workspace, we don't have to worry if a file is open to show errors in
it. This change requires the addition of a new (*snapshot).PackageHandle
function that gets a CheckPackageHandle for a given package ID. This
function does not cause a re-load of the package metadata, though if we
feel that this is something we need in the future we can add it.

Change-Id: I863bdf284d15f2317d8fae395928a90b9455146b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208102
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-22 02:13:35 +00:00
Rebecca Stambler
eaeb383209 internal/lsp: use version numbers in diagnostic messages
This change uses the FileIdentity when reporting an error message, so
that the version number can be propagated to through the
publishDiagnostics notification.

Change-Id: I6a2103e304717ca09895008ea40336e3ace3c66d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208260
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-21 20:01:42 +00:00
Rebecca Stambler
35ba81b9fb internal/lsp: reorganize and refactor code
This change cleans up internal/lsp/source/view.go to have a more logical
ordering and deletes the view.CheckPackageHandle function. Now, the only
way to get a CheckPackageHandle is through a snapshot (so all of the
corresponding edits).

Also, renamed fuzzy tests to fuzzymatch. Noticed this weird error when
debugging - I had golang.org/x/tools/internal/lsp/fuzzy in my module
cache and it conflicted with the test version.

Change-Id: Ib87836796a8e76e6b6ed1306c2a93e9a5db91cce
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208099
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-21 02:33:28 +00:00
Heschi Kreinick
8fd459516a internal/lsp: rename Files to CompiledGoFiles
As we improve support for cgo we'll need to reference GoFiles, not just
CompiledGoFiles. "Files" is right out.

I think I got everything that needs renaming but please let me know if
not.

Updates golang/go#35720.

Change-Id: I97a6ebf5b395535de0d5f4f8b3f84b46ca34643f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208101
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-20 22:19:51 +00:00
Heschi Kreinick
328c41bf04 internal: avoid use of (*token.File).Name
When line directives are in use, we want the logical file name, not the
one we found the bytes in. This matters most for cgo, where the file we
parsed is not the one the user wants to see.

Updates golang/go#35720.

Change-Id: I495328071d8865e6895cb731467f1601f11e93db
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208100
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-20 22:11:42 +00:00
Rebecca Stambler
ad01d5993d internal/lsp: run diagnostics on the entire workspace
This change runs diagnostics on all packages in the workspace, instead
of just open files. We also want to avoid invalidating the type
information for a newly-opened file (since we should have it be default
now), so handle that case.

This causes a large increase in memory usage in the
internal/lsp/cmd tests, so to handle that, share an app between all of
the tests, rather than creating one per-test type.

Change-Id: Ifba18d77a700cda79ec79f66174de0e7f13fe319
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207353
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-20 00:10:58 +00:00
Rebecca Stambler
7f7817c0f9 internal/lsp: handle breakage caused by CL 207598
textDocument/didChange events need to indicate if the change includes
the full file content or just a diff. Previously, the
contentChange.Range field was a pointer, so if it was nil, then we would
conclude that the file change was for the whole file. Now, the best we
can do is compare it to an empty range, but this still doesn't work if
you are at the beginning of a file. I think that the range needs to be a
pointer for this to work correctly.

Also, some minor changes that came up along the way while debugging:
(1) Don't close over the *cache variable for fear of pinning anything in
    memory
(2) Improve the error message when the token.File is nil
(3) Check for a nil token.File earlier

Change-Id: If9f310e92b7fb740b45e6cd3f9ca678a6fb52ff6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207906
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-19 22:59:52 +00:00
Rebecca Stambler
80313e1ba7 internal/lsp: fix panic in bestView
Rather than panicking when we have not created any views for the packages,
we should show a reasonable error to the user. This change propagates the
errors to the user.

Updates golang/go#35599

Change-Id: I49789d8ce18e154f111bc3584488f468a129e30c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207344
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-11-16 21:44:31 +00:00
Rebecca Stambler
3a792d9c32 internal/lsp: fix panic when logging errors in snapshot.KnownPackages
Fixes golang/go#35606

Change-Id: I85eef677ed2e6a971d2955ba97358d26ecf18ac1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207346
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-11-15 20:25:09 +00:00
Michael Matloob
caa0b0f7d5 internal/lsp/source: add support for references in the same workspace
When looking for references, look in the entire workspace rather than
the same package. This makes the references query more expensive because
it needs to look at every package in the workspace, but hopefully
it shouln't be user-noticable. This can be made more efficient by only
checking packages that are transitive reverse dependencies. I don't think a
mechanism to get all transitive reverse dependencies exists yet.

One of the references test have been changed: it looked up references
of the builtin int type, but now there are so many refererences that
the test too slow and doesn't make sense any more. Instead look up
references of the type "i" in that file.

Change-Id: I93b3bd3795386f06ce488e76e6c7c8c1b1074e22
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206883
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-14 20:04:27 +00:00
Rebecca Stambler
faa69481e7 internal/lsp/cache: add finer-grained control of file changes
This change is the first step in centralizing control of modifications
to different files, either within the workspace or outside of it. We add
a source.FileAction type to pass into the internal/lsp/cache package and
handle the difference between opening and creating a file.

Now that we load all packages in a workspace by default, we no longer
need to re-load a file on open. This CL should enable CL 206883 to work
correctly.

Change-Id: I2ddb21ca2dd33720d668066e73283f5629d02867
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206888
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-14 16:11:15 +00:00
Rebecca Stambler
e2727e816f internal/lsp: use the versions provided by the client
This change propagates the versions sent by the client to the overlay
so that they can be used when sending text edits for code actions and
renames.

Fixes golang/go#35243

Change-Id: I8d1eb86fe9f666f7aa287be5026b176b46712c97
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205863
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-13 23:20:20 +00:00
Rebecca Stambler
bc1376d635 internal/lsp: look up files in packages by position instead of URI
This change makes sure that we only return files that contain the given
position. There are a few instances of needing to look up files by URI
in the internal/lsp/cache package, so use an unexported package for
that. This allows us to remove some code in the implementations code.

Change-Id: Ifa7a62c67271826e6c632e4c88667d60f8b760c4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206880
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-11-13 16:34:02 +00:00
Rebecca Stambler
e33b02e766 internal/lsp: use versioned URIs in rename and code actions
This change adds support for returning versions along with file URIs, so
that the client can know when to apply changes. The version is not yet
propagated along to the internal/lsp/cache package, so this change will
have no effect (VS Code ignores a version of 0 and still applies the
changes).

A few minor changes made in the rename code (to remove the view
parameter). Some minor staticcheck fixes.

Updates golang/go#35243

Change-Id: Icc26bd9d9e5703c699f555424b94034c97b01d6f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206882
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-13 05:52:40 +00:00
Heschi Kreinick
76a3b8da50 internal/memoize: propagate cancellation
If a user is typing fast, they will quickly invalidate many snapshots.
We don't want to stack up a bunch of stale type check and analysis
operations, so we should propagate cancellation through the cache.

Handles are long-lived, so we may cancel an operation only to
restart it again later. Also, there may be multiple operations waiting on
the same computation, and just because one is cancelled doesn't mean we
should necessarily stop. The easiest way to support all that was to add
an explicit state to each handle, and track the number of waiters.

See the code for more details on Handle life cycles.

As far as I can tell, the rest of gopls is prepared for this behavior.
I added an explicit check to the type checking code, where I was worried
it might get overly confused. But long-term it would probably be good to
return an error from Get.

Change-Id: I3ea6e141b52b94300a41248d3f2e039b023709d0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206879
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-12 23:22:37 +00:00
Michael Matloob
323f198ced internal/lsp: support implementations requests for implementations in other packages
Look in all packages the snapshot knows of (through a new method on snapshot called
KnownPackages) and see if any of those packages contain implementations. Before,
the Implementation call only looked in the current package.

Much of the new complexity in implementation.go is routing through the Type to
Package data in the implementsResult.pkg field so the identifier can be looked up
in its correct package.

Fixes golang/go#32973

Change-Id: Ifa7115b300f52fb4fb55cc00db2e7f339e8c2582
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206518
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-12 18:49:59 +00:00
Ian Cottrell
c41a8f58b5 internal/lsp: make View.SetOptions save and useful
It attempts to detect changes that would invalidate the view and replace itself
with a new view when that happens

Change-Id: I0f1a8cd3bd6ddcef115fedc6c57ae0398b16d3b6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206147
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-12 16:15:35 +00:00
Rebecca Stambler
52adfe5cb6 internal/lsp/cache: avoid returning errors when building source.Errors
We don't want to return an error for the whole package when we are just
building out error positions.

Change-Id: I56b5b88ff2b4b44da8a372ade81cd9b1534235c4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206597
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
2019-11-12 00:54:22 +00:00
Michael Matloob
50fa39b762 internal/lsp/cache: have NewView create view even if load all packages fails
Even if the packages.Load of the directory the NewView is being created for
fails, create and add the view. But also return the error from NewView, just
after the new view has been added.

Fixes golang/go#35468

Change-Id: I76c2d3cbe1a508ad0794a6fcd3bc67cd48c97e22
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206497
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-11 18:23:52 +00:00
Michael Matloob
46f5a7f28b go/packages: ignore no packages error from (*snapshot).load in (*session).NewView
Treat it as okay if no packages are found when loading all the packages in a
workspace. Users may open workspaces that don't have any Go files, either because
they are workspaces for other languages, or because no Go files have been created
yet.

Fixes golang/go#35455

Change-Id: I60912472ec8930649996edc150d1d19cd74a0a2e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206140
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-08 17:56:16 +00:00
Rebecca Stambler
b93886dd8b internal/lsp/cache: handle a nil pointer exception in analysis
Updates golang/go#35339

Change-Id: I2611b1a61bcf777fe4ce0f5446d1897c5698af86
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205859
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-08 17:37:09 +00:00
Michael Matloob
a4a09c7216 internal/lsp: call load in (*session).NewView
Add a source.Scope type that can be used to refer to directories or
files, and modify (*snapshot).load to take source.Scope.
Then call load in NewView.

Change-Id: I8f03c7b271d700b162100d2890d23219ef9578c2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204822
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-07 23:34:59 +00:00
Muir Manders
ea203083f5 internal/lsp: add config flag to hide debugging output
Add a new "verboseOutput" config flag (defaults to "false") to enable
verbose go/packages and imports output. Previously this output was
always present.

The go/packages output would dump out the entire (humongous) "go list"
JSON response which would lock up my editor for a second whenever
something triggered a go/packages call.

The imports output would produce a bunch of "gopathwalk" debug
messages that aren't useful in general and in particular add noisy
output to tests.

Change-Id: Ie4693d074cb84f1397e0e51d7346dc9391bd1278
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205138
Reviewed-by: Koichi Shiraishi <zchee.io@gmail.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-05 20:43:22 +00:00
Heschi Kreinick
818555187f internal/lsp/source: attach Package to completions when available
Unimported completions now try to pull Packages from everywhere, not
just the transitive dependencies of the current package. That confused
the import formatting code, which only looked at deps. Pass the Package
along with the import suggestion, and use it when it's present.

Also change some error messages to be different for diagnostic purposes.

Fixes golang/go#35359.

Change-Id: Ia8ca923e46723e855ddd2da7611e6eb13c02bb4f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205501
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-05 20:21:09 +00:00
Rebecca Stambler
dc038396d1 internal/lsp: add additional check for analysis value
Updates golang/go#35339

Change-Id: Ie990672b619d1844f66abf62010fe9a69daf00d9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205161
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-04 23:23:14 +00:00
Rebecca Stambler
3c3d1ad199 internal/lsp: add LocalPrefix configuration
Updates golang/go#32049

Change-Id: I64e5201170b5be8b470c436264e18e12ec8d12f2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204820
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-04 23:01:36 +00:00
Heschi Kreinick
fda23558a1 internal/lsp/cache: only refresh imports cache every 30 seconds
Loading completion suggestions can be slow, especially in GOPATH mode
where basically anything can change at any time. As a compromise, cache
everything for 30 seconds. Specifically, after a completion operation
finishes, if the cache is more than 30 seconds old, refresh it
asynchronously. That keeps user-facing latency consistent, without
chewing up CPU when the editor isn't in use. It does mean that if you
walk away for an hour and come back, the first completion may be stale.

In module mode this is relatively benign. The only things the
longer caching affects are the main module and replace targets, and
relevant packages in those will generally be loaded by gopls, so they'll
have full, up-to-date type information regardless.

In GOPATH mode this may be more troublesome, since it affects
everything. In particular, go get -u of a package that isn't imported
yet won't be reflected until the cache period expires. I think that's a
rare enough case not to worry about.

Change-Id: Iaadfd0ff647cda2b1dcdead9254b5492b397e86e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205163
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-04 21:31:29 +00:00
Heschi Kreinick
f505e54dbd internal/lsp: use available type info for unimported completions
Packages that aren't imported in the current file will often have been
used elsewhere, which means that gopls will have their type information
available. Expose loaded packages in the Snapshot, and try to use that
information when possible for unimported packages.

Change-Id: Icb672618a9f9ec31b9796f0c5da56ed3d2b38aa7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204824
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-04 21:31:10 +00:00
Rebecca Stambler
979d74e0bb internal/lsp: fix race condition in metadata handling
The metadata was being added to the cache before it was fully computed.

Change-Id: I6931476a715f0383f7739fa4e950dcaa6cbec4fe
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204562
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-04 20:35:57 +00:00
Rebecca Stambler
075a17623f internal/lsp: do not format the file on import organization
Updates golang/go#30843
Updates golang/go#35114

Change-Id: Id3f66d20b1ada9e53298b2370214b23b87bb0680
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204557
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-04 17:18:53 +00:00
Rebecca Stambler
8dbcdeb83d internal/lsp/cache: recover from panics in analyses
Some analyses may panic, so we should be careful to recover.

Change-Id: Ie13df07aca1a21f4e6a66648cd4890b6a31966cc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204817
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-11-01 20:02:57 +00:00
Rebecca Stambler
229318561b internal/lsp: revert to old method of computing error ranges
The approach of using ASTs to determine error ranges had more
complications than I anticipated. Revert it for now to go back to the
old user experience, while we consider a better approach.

Change-Id: I5b23f0147c26089330f8a4bbf7b6914ae66cf59a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204561
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-01 16:09:22 +00:00
Rebecca Stambler
5be387d313 internal/lsp: enable go-diff by default
Also, fix a minor staticcheck warning.

Change-Id: Ic500215dac7985a9d8a7189aea4e1be7b20f7780
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204560
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-01 15:53:06 +00:00
Rebecca Stambler
e931b35e96 internal/lsp/cache: don't close around actionHandle or snapshot
This change stops the memory leak from happening. It does not stop the
large number of allocations done by analysis, however, so these still
need to be prevented through correct cancellation.

Change-Id: I1cf7fbf6f85ed413af1f2ea55f91862a6d7f2db7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204558
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-01 15:50:08 +00:00
Rebecca Stambler
b2a7f28a18 internal/lsp: do not close over the handle in the memoize function
Closing over the checkPackageHandle creates a cycle that forces the
checkPackageHandle not to be garbage collected until the value is
created. If a value is never created, the handle will not be collected.

Change-Id: I0f94557da917330ebe307a0e843b16ca7382e210
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204079
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-30 00:30:36 +00:00
Rebecca Stambler
8456940f41 internal/lsp: remove the pkg.view field, in preparation for CL 204079
This change encompasses the refactorings needed to correctly implement
CL 204079. The goal of this CL is to make the actual relevant diffs more
clear.

Change-Id: I38acfd436e2380be790910e01b6e37d8280e9100
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204139
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-29 23:14:01 +00:00
Rebecca Stambler
9cc4af7d6b internal/lsp: type check packages in parallel
This change eliminates the need for the importer struct. We should no
longer need the "seen" map for cycle detection. This is because
go/packages will not return import maps with cycles, and we fail in the
Import function if we see an import we do not recognize.

Change-Id: I06922c74e07eb47ce63b56fa2ac2099e7fc8bd8a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202299
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-29 04:13:27 +00:00
Rebecca Stambler
2077df3685 internal/lsp: remove analyzers from Analyze result
Also, address minor comments that I ignored from Heschi because I am
obnoxious.

Change-Id: I99dcac38578585af2cdd951dd2b9755732ef945f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203281
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-25 02:35:17 +00:00
Rebecca Stambler
3d91e92cde internal/lsp: stop caching diagnostics on the package
Now that we are using the memoize package to cache analysis results, we
can use that cache for suggested fixes.

Change-Id: I42905a6fe575f49d38979d53d58ea8ec59210ae0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203278
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-10-24 22:03:59 +00:00
Rebecca Stambler
e7a0da15e1 internal/lsp: don't cache analysis.Pass on actionHandle
There is no need to cache the pass on the actionHandle, as it does not
need to be reused and does not live outside the exec function.

Change-Id: I1737271383776b35718df3475b4f888232d57ae4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203177
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-24 21:34:16 +00:00
Rebecca Stambler
b24f3822ec internal/lsp: fix fallback and error handling logic
We don't need to worry about a package's errors unless it is the
top-level package. Also fix some fallback logic in the type error range
computation.

Change-Id: Ib26b5e25bd70193ea24ec4a197811eedf69b0e2c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202622
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-10-24 17:20:55 +00:00
Rebecca Stambler
2b779830f9 internal/lsp: don't associate package with snapshot
This change effectively reverts CL 202039. This CL was a mistake, as it
creates a cycle. Snapshots hold CheckPackageHandles, which in turn hold
pkgs.

Change-Id: I944304cb365f0ef98b5e54ea38edea6cece40453
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202740
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-10-23 20:24:04 +00:00
Muir Manders
98e333b8b3 internal/lsp: improve completion for *ast.ArrayTypes
*ast.ArrayTypes are type expressions like "[]foo" or "[2]int". They
show up as standalone types (e.g. "var foo []int") and as part of
composite literals (e.g. "[]int{}"). I made the following
improvements:

- Always expect a type name for array types.
- Add a "type modifier" for array types so completions can be smart
  when we know the expected type. For example:

var foo []int
foo = []i<>

  we know we want a type name, but we also know the expected type is
  "[]int". When evaluating type names such as "int" we turn the type
  into a slice type "[]int" to match against the expected type.
- Tweak the AST fixing to add a phantom selector "_" after a naked
  "[]" so you can complete directly after the right bracket.

I split out the type name related type inference bits into a separate
typeNameInference struct. It had become confusing and complicated,
especially now that you can have an expected type and expect a type
name at the same time.

Change-Id: I00878532187ee5366ab8d681346532e36fa58e5f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197438
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-23 16:34:50 +00:00
Rebecca Stambler
0bbdf54eff internal/lsp: modify approach to watching changed files
This change modifies the invalidContent function to take a file change
type. This allows us to eliminate the separate invalidateMetadata
function. The logic of watching changed files is then further pushed
into the caching layer.

Updates golang/go#34218

Change-Id: Id31b3931c45ec408b6e7b4a362e00f9091ba4f70
Reviewed-on: https://go-review.googlesource.com/c/tools/+/201221
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-22 21:33:45 +00:00