Introduce a metadataGraph.Clone method that can be used to clone a
metadata graph, applying a set of updates. During clone, ids and imports
are recomputed from scratch based on the known metadata.
Also refine the check for "real" packages when determining whether a
command-line-arguments package should be kept as a workspace package: if
all other packages are invalid, but the command-line-arguments package
is valid, we should keep the command-line-arguments package.
Updates golang/go#45686
Change-Id: Iea8d4f19c1d1c5a2b0582b9dda5f9143482a34af
Reviewed-on: https://go-review.googlesource.com/c/tools/+/340851
Reviewed-by: Alan Donovan <adonovan@google.com>
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Now that we preserve stale metadata, we can derive workspace packages
entirely from known metadata and files. This consolidates the logic to
compute workspace packages into a single location, which can be invoked
whenever metadata changes (via load or invalidation in clone).
Additionally:
- Precompute 'HasWorkspaceFiles' when loading metadata. This value
should never change for a given Metadata, and our view.contains func
is actually quite slow due to evaluating symlinks.
- Track 'PkgFilesChanged' on KnownMetadata, since we don't include
packages whose package name has changed in our workspace.
Also introduce a few debug helpers, so that we can leave some
instrumentation in critical functions.
For golang/go#45686
Change-Id: I2c994a1e8ca05c3c42f67bd2f4519bea5095c54c
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This reverts commit 654a14b527.
Reason for revert: my flawed understanding of the concurrency
Change-Id: I31a35267323bb1ff4dff1d9244d3ce69c36cdda4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/412694
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This info is still useful to tell users that some required modules
have known vulnerabilities, but the analyzed packages/workspaces
are not affected.
Those vulnerabilities are missing Symbol/PkgPath/CallStacks.
Change-Id: I94ea0d8f9ebcb1270e05f055caff2a18ebacd034
Reviewed-on: https://go-review.googlesource.com/c/tools/+/412457
Reviewed-by: Jonathan Amsterdam <jba@google.com>
This change reduces the sizes of the critical sections
in traces.ProcessEvent and Generation.Bind, in particular
moving allocations ahead of Lock. This reduces the contention
according to the trace profiler.
See https://go-review.googlesource.com/c/go/+/411909 for
another reduction in contention. The largest remaining
contention is Handle.Get, which thousands of goroutines
wait for because we initiate typechecking top down.
Also, add a couple of possible optimization TODO comments,
and delete a stale comment re: Bind.
Change-Id: I995a0bb46e8c9bf0c23492fb62b56f4539bc32f8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411910
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Known subdirs change rarely and it's quite expensive to compute
a glob pattern derived from them, so cache computation result
and inherit it across generations.
Computation cost is divided ≈evenly between `sort.Sort` and
`span.URI.Filename` calls, and there is no trivial way to optimize
them away besides caching.
Benchmark (didChange in kubernetes): ~37ms->30ms
Change-Id: Idb1691c76b8ff163dc61f637f07229498888606c
GitHub-Last-Rev: cd99a9ce5c797afb5aaa9b478fcf433edd0dc03c
GitHub-Pull-Request: golang/tools#383
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411636
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
The change to implement inlay hints has been merged, so we need to
enable the tests.
Change-Id: I47e7ab343d0ab10283caac0a3d6677dd69c7504a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411898
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I had hoped to see a reduction in total allocation, but it does not
appear to be significant according to the included crude benchmark.
Nonetheless this is a slight code clarity improvement.
Change-Id: I94a503b377dd1146eb371ff11222a351cb5a43b7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411655
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The marker tests are updated to include padding values
when mapping inlay hints to text edits.
Change-Id: Ieb421088238c65b07abdad12763816d3d1e757c8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411654
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This change implements support for textDocument/inlayHint and
adds inlay hints for parameter names.
For golang/go#52343.
For golang/vscode-go#1631.
Change-Id: I3f989838b86cef4fd2b4076cb6340010fff7c24c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411094
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Suzy Mueller <suzmue@golang.org>
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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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When test awaiting fails, we often fail to shut down the server because
the pipe is closed. Fix this by using a detached context for running the
connection.
Also clean up some unnecessary context arguments.
Change-Id: I535c1cc1606e44df5f8e2177c92293d57836f992
Reviewed-on: https://go-review.googlesource.com/c/tools/+/340850
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Set up the tests for inlay hints. We test inlay hints by converting them to text edits
and verifying the output is as we expected it.
This change does not yet deal with making sure the server
settings are correct.
Change-Id: I136f971a87bf9936fd44047d45fe0a3f03c9164e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/411095
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Reviewed-by: Jamal Carvalho <jamal@golang.org>
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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/340730
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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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This reverts commit 5ca4cc8b9a.
Reason for revert: appears insufficient to land CL 410955.
Change-Id: If7029c9a43568e210e89d473b738400f5155715e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/410995
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
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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
Change-Id: I538ca6bb88cc18f1eefe35d2db29a62e5190280e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/410697
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This change replaces various uses of FileSet with either
nothing (when the parameter wasn't really needed) or token.File.
Notably, astutil.Imports was being used to extract the imports
of a file (available at ast.File.Imports), forcing a number
of wrappers to have a FileSet parameter.
Also, simplify various expressions file.Position().Line to file.Line().
Change-Id: I19fe86a18aba50352275f77ed737513744d3930c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/410366
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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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Reviewed-by: Bryan Mills <bcmills@google.com>
Logic in mod.Hover relied upon ColumnMapper.TokFile being the only file
in its FileSet. Fix this to compare offsets with offsets.
Also use safetoken.InRange in semantic.go, to fix an incorrect bounds
check.
Change-Id: Ia18a0799fea1120674e3772efdf0bdb724e554e7
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It turns out PointSpan was only ever used as part of an oft repeated
pattern to get a token.Pos from a protocol position. Cut out the
middle.
Change-Id: I0b2c0fc3d335e6bbd3c1ac72c6f75e2c40c60ca5
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This eliminates some duplication, and lays the groundwork for removing
the use of token.File within ColumnMapper.
Change-Id: I54fe570bfc4f7bca0da643b8727e890dc6343208
Reviewed-on: https://go-review.googlesource.com/c/tools/+/406135
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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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Eliminate the need to work around newline terminated files in
completion, by storing selection ranges as token.Pos and using an
lsppos.TokenMapper derived from the file content, which does not have
problems with newline termination.
This simplifies the completion logic, and removes the last use of
MappedRange.SpanRange, which is an inconisitent API in that it returns
positions in the compiled source, rather than edited source.
Change-Id: I65232787956325172b48fd42d85cbb598039ee5a
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Due to not having a pointer receiver, memoization of the computed
MappedRange.protocolRange had no effect.
Rather than fix the memoization, just remove it since it has apparently
not affected performance significantly.
Change-Id: Ib34becef44dca4074dcc7c8af93883d9a1060f8d
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CL 405546 introduced a latent bug in MappedRange, because it naively
used the wrong TokenConverter to convert mapped positions to offsets.
This was detected via related clean-up work in another CL. Fix this by
passing the correct converter from MappedRange.Range. Add a test that
would have demonstrated the breakage.
More cleanup is needed here. It is subtle that MappedRange.Converter
maps the adjusted position for its start and end, and there may be some
places where this invariant has been broken over the years.
Add additional documentation and bug reports.
Change-Id: If7f177894bac1242ddcc1786e79c7559455e9291
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Add additional bug reporting related to position invariants, and update
marker test runners to panic on encountered bugs.
This revealed a panic on older Go versions, where we try to create a
range for a missing package name span. Lift the check into the caller
for this case, and leave a big comment explaining that
checkForOrphanedFile probably shouldn't be so tolerant of invalid calls.
Change-Id: Ie16a07afba0f8a5682cca50ad8f04450bfa2da65
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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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Our mechanism for reporting internal bugs doesn't work unless we
actually notice them. Add an undocumented option to receive showMessage
dialogs on the first bug occurring server-side.
Change-Id: I259a4c13161271c350fae06dc6ab0e1621725c92
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Adds a function for computing the core type of a type for use within x/tools.
Updates golang/go#52940
Change-Id: I91645c0b27031506be51a5f9d53b3e125e6fd1c2
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Sometimes one wants to run the regtests with verbose output without
seeing the wall of RPC logs. Add a new flag to control the printing of
logs, rather than overloading testing.Verbose().
Change-Id: Iea5727e3079005d229319cbf86f67067f7c1f85d
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This change makes it so that the stub methods analysis can recognize
errors happening to method and function call expressions that are being
passed a concrete type to an interface parameter. This way, a method stub CodeAction will appear at the call site.
Updates golang/go#37537
Change-Id: I886d53f06a85b9e5160d882aa742bb2b7fcea139
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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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The existing debug.Bug mechanism for reporting internal bugs is
insufficient for several reasons:
- It requires a context, which is not always available.
- By being defined in the debug package, it is subject to import
cycles.
- It is too complicated. Listening for bugs requires understanding the
event package.
Replace this with a simpler 'bug' package with no dependencies, that
allows reporting, listing, and listening on internal bugs. Hopefully
this will fulfill the goal of debug.Bug, to help us track down rare
bugs.
Change-Id: I30cab58429b29bd2d944d62e94f5657e40a760fc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/399623
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In JSON output, the Go command was only setting the Error field for one
package involved in an import cycle. As a result, TestResolveImportCycle
was dependent on the chosen package, causing flakes when the chosen
package is not deterministic.
Arguably this behavior should be fixed, both in the go command and in
gopls, but for now make the test resilient to choice by asserting on any
of the possible errors.
Add a new AnyOf expectation to support this type of assertion and tweak the
test output formatting. Also update the test to eagerly fail once the
didOpen notification has been fully processed, so that we don't have to
wait for the assertion timeout.
Updates golang/go#52904
Change-Id: Ic209d8fdcb7308c041b287a8f122c47e96d29a96
Reviewed-on: https://go-review.googlesource.com/c/tools/+/406274
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
If -config=true, gopls vulncheck reads the package load
configuration JSON (build flags, env, tests, and later
maybe overlay info) from stdin.
And, add some logging to gopls/internal/vulncheck/command.go
that helps measuring the package loading overhead.
Update golang/go#50577
Change-Id: I5c1ce145b07f2bed03911613f42c09a3d6be6c28
Reviewed-on: https://go-review.googlesource.com/c/tools/+/404575
Reviewed-by: Robert Findley <rfindley@google.com>
In passing I noticed that this three-way comparison
is not (anti)symmetric. Such comparisons should consist
of a list of pairs of tests of this form:
if x.key1 < y.key1 { return -1 }
if x.key1 > y.key1 { return +1 }
...key2, etc...
return 0
Also in passing:
- simplify panic-proof debug string function.
- augment doc comment of (*Server).beginFileRequest
Change-Id: Idcd0844ea4e96fc2dee5bbc270f5a200b5c27aa0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/405480
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
This CL adds a new analyzer for //go:embed directive, which
checks for the "embed" import.
Along with it, it improves doc for analysistest.Run for
comments of the the form "//...// want..." or
"//...// want..."
Updates #50262
Change-Id: I60ef0ab740feadd4fff3a4d758123b27ceda0bc6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/400854
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Peter Weinberger <pjw@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Nooras Saba <saba@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
Rob Findley
Alan Donovan
Hana (Hyang-Ah) Kim
Ruslan Nigmatullin
Suzy Mueller
Jamal Carvalho
Robert Griesemer
Robert Griesemer
Tim King
Marwan Sulaiman
Nooras Saba