This change replaces the single large map used for snapshot.goFiles
by a map of 256 stripes, each of which becomes immutable once shared.
This optimizes the common case in which the copy is nearly identical
to the original.
We still need to visit each map entry to see whether it needs to be
deleted (which is rare) and to inherit the handle in the usual case.
This is now done concurrently.
Also, share the (logically immutable) []PackageIDs slices across
old and new snapshots. This was worth 5% of CPU and 1/3 of allocations
(all small).
Benchmark on darwin/arm64 shows a 29% reduction for DidChange.
$ go test -v ./gopls/internal/regtest/bench -run=TestBenchmarkDidChange -didchange_dir=$HOME/w/kubernetes -didchange_file=pkg/util/hash/hash.go
Before:
BenchmarkStatistics 100 22955469 ns/op 11308095 B/op 47412 allocs/op
BenchmarkStatistics 100 23454630 ns/op 11226742 B/op 46882 allocs/op
BenchmarkStatistics 100 23618532 ns/op 11258619 B/op 47068 allocs/op
After goFilesMap:
BenchmarkStatistics 100 16643972 ns/op 8770787 B/op 46238 allocs/op
BenchmarkStatistics 100 17805864 ns/op 8862926 B/op 46762 allocs/op
BenchmarkStatistics 100 18618255 ns/op 9308864 B/op 49776 allocs/op
After goFilesMap and ids sharing:
BenchmarkStatistics 100 16703623 ns/op 8772626 B/op 33812 allocs/op
BenchmarkStatistics 100 16927378 ns/op 8529491 B/op 32328 allocs/op
BenchmarkStatistics 100 16632762 ns/op 8557533 B/op 32497 allocs/op
Also:
- Add comments documenting findings of profiling.
- preallocate slice for knownSubdirs.
- remove unwanted loop over slice in Generation.Inherit
Updates golang/go#45686
Change-Id: Id953699191b8404cf36ba3a7ab9cd78b1d19c0a2
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It is inconsistent to only compute IsIntermediateTestVariant for
workspace packages, and could be a source of bugs. Always compute it.
Change-Id: I16f40fe44a1145a74ef77fee4b7fd813abe603cb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/340732
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In preparation for making metadata immutable, move metadata-related
fields to a new MetadataGraph type. Other than instantiating this type
when cloning, this CL contains no functional changes.
For golang/go#45686
Change-Id: I7ad29d1f331ba7e53dad3f012ad7ecdae4f7d4b7
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When using go.work, the go command packs module-specific errors into
synthetic results corresponding to the module query ("modulepath/...").
Extract these for use in diagnostics, by packing them into a new
moduleErrorMap error type.
Fixesgolang/go#50862
Change-Id: I68bf9cf4e9ebf4595acdc4da0347ed97171d637f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/405259
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1. Avoid unnecessary intermediate map updates.
2. Avoid accumulating defers in a loop when the control is simple.
Yield: -10% CPU, -37% allocs.
Typical results:
$ go test -v ./gopls/internal/regtest/bench -run=TestBenchmarkDidChange -didchange_dir=$HOME/w/kubernetes -didchange_file=pkg/util/hash/hash.go
Before:
BenchmarkStatistics 100 25932206 ns/op 11684109 B/op 75458 allocs/op
After:
BenchmarkStatistics 100 23294195 ns/op 11293472 B/op 47299 allocs/op
Also, move profiling logic outside the loop so that later runs
don't overwrite earlier runs. (This doesn't appear to be a problem
in practice, presumably because the last run is the big one.)
Updates golang/go#45686
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Use a detached Context for all progress notifications. In particular,
using a detached Context for the window/workDoneProgress/create
notification avoids races where the $/cancelRequest notification and
create response cross paths, such that the client has created a progress
dialog but the server thinks that starting progress failed.
Also, as a matter of best practice don't store a context on the WorkDone
type, despite the fact that this Context is detached. Instead, only
close over a Context in the WorkDoneWriter, which requires a Context in
order to function but which implements the io.Writer interface.
The TestProgressBarErrors test should now pass reliably.
Fixesgolang/go#46930
Change-Id: I0d115ed3a62de97fe545c8dc0403e7bb55f6e481
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This eliminates some duplication, and lays the groundwork for removing
the use of token.File within ColumnMapper.
Change-Id: I54fe570bfc4f7bca0da643b8727e890dc6343208
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The TokenConverter has been trimmed down to a thin wrapper around
token.File, and can now be removed.
Change-Id: I9985492274c88e6a13e6d62dadab5595c75c7840
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Package loading (at least via go list) fails when the import header
doesn't parse, so we need to invalidate metadata upon a state change
from non parsing->parsing. Refactor metadata invalidation to implement
this feature, add additional documentation, and avoid unnecessary work.
This change revealed a latent bug (via TestDeleteDirectory): when
statting a deleted directory failed, we could fail to invalidate any
package IDs, even those we already knew about. This bug was masked by
the somewhat complicated semantics of pkgNameChanged. The semantics of
pkgNameChanged are simplified to encapsulate any change to a
package->file association.
Also refactor the parsing API somewhat, and add a bug report if we don't
get a ParseGoFile while inspecting for metadata changes.
Update most regtests to panic upon receiving bug reports.
Fixesgolang/go#52981
Change-Id: I1838963ecc9c01e316f887aa9d8f1260662281ab
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The only real implementation of position conversion was via a
*token.File, so refactor the converter logic to eliminate the Converter
interface, and just use a single converter implementation that uses a
*token.File to convert between offsets and positions.
This change is meant to be a zero-impact refactoring for non-test code.
As such, I abstained from panicking in several places where it would
make sense. In later CLs, once the bug reporting API lands, we can
insert bug reports in these places.
Change-Id: Id2e503acd80d089bc5d73e983215784015471f04
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Optimize building the symbol index for a file, in two ways:
- use the cached full parse tree, if it already exists
- if it doesn't exist, optimize parsing by skipping both comments and
object resolution, which aren't necessary for symbols
This results in around 3x faster initial indexing of symbols. In my
manual testing, indexing of Kubernetes went from 16s->5s, and indexing
of x/tools went from 2.4s->700ms.
Also fix a typo in gopls/internal/regtest/bench/bench_test.go.
Fixes#52602
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This avoids an import cycle that prevented these wrappers from being
used in the lsppos package.
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When a file is new or its package name has changed, we should invalidate
all packages for files in the current directory, not just packages
previously containing the file.
Fixesgolang/go#52500
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changes
In principle, we should only parse through the cache when in workspace
mode, else we risk pinning AST in memory that we'll never need.
Alternatively: when unsure we should default to NOT parsing through the
cache.
For now, just update the logic to check for metadata changes to not
memoize its result.
Change-Id: I200af9ffb3353ba8065e46100a588dce6239dc66
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As of golang/go#50827, gopls no longer supports building at 1.12, and so
usage of golang.org/x/xerrors can be replaced with the native support for
error wrapping introduced in Go 1.13.
Remove this usage as a step toward eliminating the xerrors dependency
from x/tools.
For golang/go#52442
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This change uses the new feature on the go command to explicitly ask
for needed fields on the JSON output to ask for needed fields. Not
requesting most of those fields doesn't make as much of a difference,
but being able to skip Deps and Stale should add decent gains in most
cases.
Change-Id: I30e9d53fbdaf2ab485d73d5d9b9ccd60a78ed10c
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Gofmt to update doc comments to the new formatting.
(There are so many files in x/tools I am breaking up the
gofmt'ing into multiple CLs.)
For golang/go#51082.
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Change-Id: I13cf73d7e043dda1a06c28bb09e413a76a68df1f
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If a go.mod file is updated, the packages
in that module may have updated type check
errors since the go version can affect errors.
Fixesgolang/go#51732
Change-Id: I3a8cd8b9ab267336ccc5c841a14c5ec5f6c986e5
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Change-Id: I7bafb1555ab7d35b9c49138c915b6c6c781e92c6
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to avoid losing workFile information when that happens. This fixes an
issue where diagnostics, hover, etc didn't show up after the initial
load when some changes were made to go.work files.
Change-Id: I42e2dcfd94a5b4726856ab0a4d8dfc9c1efc48b1
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Commands will fail with -mod=mod when GOWORK is set. Explicitly set it
to off.
Fixesgolang/go#48941
Change-Id: I39f9d95526ca6f3b0414ff273cecd443d69afa61
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If a go.work file is present, we activate the workspace mode regardless
of the experimentalWorkspaceModule setting.
Fixing this also revealed a long-standing bug in traversing parent
directories. Amazingly I have no recollection of this bug being
reported, but it is far more likely to be hit with go.work files, when
users regularly open nested subdirectories.
Fixesgolang/go#51477
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Report diagnostics on use lines where the directory doesn't have a
go.mod file, and on syntax errors in go.work.
For golang/go#50930
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Before this change, newWorkspace would fall back to other workspace
types if there was an error parsing go.work files, or one of the
workspace modules did not exist. Instead, in those cases, newWorkspace
now successfully builds a *workspace with an error set.
This respects the user's intent when working with a go.work file so that
gopls can surface a diagnostic with the error.
Change-Id: Icfc2cad270111c03d53137fa8f1b2ee9b75093c8
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Adds a command to run go mod edit -go to allow
users to easily upgrade their go directive.
Doing this change also revealed that changing
the go directive does not invalidate the type check
data and there may be stale diagnostics for a package.
Updates golang/go#51086
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The go directive affects type checking errors so
it should be included in the package key.
I manually tested that this fixes the issue in golang/go#51325Fixesgolang/go#51325
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If available, pass the LangVersion and ModulePath provided by
go/packages to gofumpt. This allows gofumpt to apply additional
formatting rules that require this information.
Also add a regression test for gofumpt formatting.
Fixesgolang/go#51327
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Remove support for passing the -workfile flag now that the go command no
longer supports it.
Updates #51215
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This will make GOWORK value appear in the gopls log
when initializing the workspace. This CL does not include
GOWORK in `environmentVariables` (in view.go) (yet).
Change-Id: I16224d1ac50ac8209def008966371c6be858d05a
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Wired through support for calling x/mod's go.work formatter on go.work
files into LSP. Tested it by hand in editor using the "Format Document"
command. Added a test case to workspace_test regtest, though I'm not
totally sure the test is correct.
For golang/go#50930
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Set the language version from the controlling go.mod file's go version,
if any. Also verify that we properly surface a diagnostic if the version
is invalid.
I didn't add any quick fixes.
Fixesgolang/go#50688.
Change-Id: Ic472502d1224a1decb5b989d51110b837020e998
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When using go 1.18 with go.work files, don't fake workspaces by creating
a workspace module: just run from the workspace root and pass -workfile.
For golang/go#44696
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Remove the workspace_metadata command, as VS Code no longer needs this
to run workspace commands (it can use go.work instead).
Updates golang/go#44696
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This CL fixes a several bugs in workspace invalidation:
- When invalidating the workspace due to a change in gopls.mod or
go.work files, we should not update the workspace if the change does
not parse. There was a comment to this effect, but it was not
properly implemented.
- Check go.work before gopls.mod, consistent with our intitial
workspace load.
- If we get an 'unchanged' change (such as a save) to go.work, don't
continue looking for gopls.mod.
A regression test that inadvertently relied on our mishandling of broken
go.work files is updated to have the correct syntax. A new regtest
expectation is added to assert on a clean workspace.
For golang/go#44696
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Remove some duplication in the construction of cache.workspace
instances.
For golang/go#44696
Change-Id: Ic955fa3f9a574781f627c550694f0b87ad2013e1
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Gopls was using an old version of workfile support in x/mod that did not
support the 'use' syntax.
Upgrade to x/mod@master, and update tests accordingly.
For golang/go#44696
Change-Id: I87841cd1322d7b1aa0fbc929838746ea600bee77
Reviewed-on: https://go-review.googlesource.com/c/tools/+/382078
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snapshot.GetVersionedFile already memoizes the file handle in
snapshot.files. There is no reason to do another write, and this write
is unsynchronized.
Fixesgolang/go#50747
Change-Id: Ib196395135de6f22dd59169accb756665ad10e58
Reviewed-on: https://go-review.googlesource.com/c/tools/+/380214
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I'm not sure how to hit this in practice, since it appears that symbols
should only return errors with some type of corruption, but we should
keep going when searching for symbols in snapshot files.
Change-Id: I9fcf6cc92fdc943520e8890ece51d28ec46e8812
Reviewed-on: https://go-review.googlesource.com/c/tools/+/376363
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The pathExcludedByFilter helper function expects path to be relative to
the workspace folder. This is a confusing API, and led to us passing
absolute paths when checking for excluded template files.
Fix it, add a regtest, and add a TODO to clean up the API.
Fixesgolang/go#50431
Change-Id: Iedcf0dd9710e541c9fb8c296d9856a13ef3fbcb6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/378398
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modfile.File.SetRequire panics on duplicate requires with conflicting
versions. Avoid the panic by returning an error in this case.
Skip directness diagnostics that run into this error, rather than
invalidating all diagnostics.
Fixesgolang/go#50425
Change-Id: Ic6379ecc48581e7fd7b470ed295e449833c351dd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/376394
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Now that we honor the template file kind provided by LSP clients, we
need to use this to derive the set of active templates.
For golang/vscode-go#1957
Change-Id: If0883b2acff746fe6d187124b939f3a2d0e0d4f2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/378354
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Honor the file kind provided by clients for overlays, by passing the
FileHandle into View.FileKind and checking for overlays.
For golang/vscode-go#1957
Change-Id: I4a767cb64dc5205f1d10c3126a2cbe67c21a34e4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/378314
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Make the language id (sent from the client) 'gotmpl' equivalent to 'tmpl'
Wherever a view is known, use its options to determine which files
are template files. Whenever the client sends an explicit
languageID, use that.
Partially fixesgolang/vscode-go#1957
Change-Id: I04cd630d6c6c80e0a78c2fafb6ddc1166ce86829
Reviewed-on: https://go-review.googlesource.com/c/tools/+/376854
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The Acquire method is nearly instantaneous; it only potentially blocks
on a small, constant sequence of cache misses, so there is no need to
avoid blocking in it when a Context is cancelled.
An early return when the passed-in Context is canceled was added in CL
242838 to avoid incrementing the Generation's WaitGroup after its
destruction has begun; however, that early return also bypasses the
WaitGroup accounting that blocks Destroy while the generation is still
in use. Instead, we need the invariant that Acquire is not called in
the first place after Destroy, which we can ensure by nilling out
the View's snapshot when we begin destroying it.
I was not able to reproduce golang/go#48774 locally, but I believe
that this CL will fix it. (It may, however, expose other races or
deadlocks that may have been masked by the early return, which we can
then fix separately.)
Fixesgolang/go#48774
Change-Id: Iac36fceb06485f849da5ba0250b44b55f937c44b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/367675
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Alan Donovan
Rob Findley
Michael Matloob
Russ Cox
Dan Kortschak
Suzy Mueller
Hana
Heschi Kreinick
pjw
ye.sijun
Bryan C. Mills