When resolving a position to a package we must consider all packages,
including intermediate test variants. This manifests, for example, when
jumping to definition in a package that is imported as a test variant
(see golang/go#47825).
For now, fix this by threading through an 'includeTestVariants' flag to
PackagesForFile. This isn't pretty, but should be a trivially safe
change: the only effect will be to increase the number of packages
considered in FindPackageFromPos. Since we are discussing future changes
to the API for querying packages from the snapshot, now did not seem
like a good time to undertake significant refactoring.
A regtest based on the original issue is included.
This CL is joint with rstambler@golang.org.
Fixesgolang/go#47825
Co-authored-by: Rebecca Stambler <rstambler@golang.org>
Change-Id: I4693ec69b50ed4acd569cff87883769c1edf332b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/347563
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Because of how the compiler internally represents variable references,
it sometimes gets position information incorrectly for them. The
codelens test hits this issue because for
var x string
fmt.Println(x)
the diagnostic about "x" escaping to heap (which actually refers to
the implicit conversion to "interface{}" type) should be rightly
reported at the "x" identifier within the call arguments list.
However, due to the aforementioned compiler bug, historically we
reported the diagnostic at the "(" token instead.
In -G=3 mode, the compiler (correctly) report the diagnostic at "x"
instead; but with GOEXPERIMENT=unified, the compiler intentionally
matches the original -G=0 behavior and continues reporting at "("
instead.
This CL avoids the issue entirely by changing the line to
"fmt.Println(42)", which avoids the issue because the compiler always
correctly prints the diagnostic then at "42".
Change-Id: I22d4c756ae801489f3f16c440e4339bc9b115fb0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/343875
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When searching for references or renaming, we start from all packages
containing the current position. But as reported in golang/go#47564,
this fails if we're renaming an object in another package; we need to
start the search from the package containing the object definition.
This CL finds the missing packages by recursively searching all
locations we encounter. For now, this will cause us to consider the
object location, and may also help us behave correctly with respect to
build constraint variants in the future.
While at it, update the regtests to support renaming. This bug could
be exercised with marker tests, but it's good to have a regtest for
renaming anyway.
Fixesgolang/go#47564
Change-Id: I5517e2aeaaa744fcc6b6b96ffbb0b2625b498ed5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/340472
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Add the scope to the command-line-arguments package ID and path so that
multiple command-line-arguments packages can coexist in the workspace.
Fixesgolang/go#47584
Change-Id: Icbfe90d67627f384c54f352e46270ab2bf4240bd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/341611
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I fixed a check in sandbox.go to check for size of config.Files
instead of nilness. The completion benchmarks run with an absolute
path workdir and were failing this check due to a non-nil but empty
config.Files.
I tweaked the benchmark output so it is compatible with benchstat. In
particular, the benchmark output now appears all on one line for an
imaginary benchmark named BenchmarkStatistics.
I also made a couple changes to the completion benchmarks:
- Don't modify the buffer before every completion. Type checking
completely dominates completion, so if it has to type check every
time then you aren't benchmarking the completion code at all.
- Don't try to exclude GC from the benchmark. I think amortized GC
time should be included in the benchmark timing. Plus, I'm not sure
that forcing a GC every 10 iterations was actually doing a good job
excluding GC from the benchmark.
Change-Id: I53718a5f6e25453146ccf5bb5fdfdfc65e244df3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323251
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ParseHeader mode is used to parse only the package and import declarations.
However, change of go:embed directive should also invalidate metadata.
So, we must use ParseFull mode to get all file comments to compare
old and new go:embed directives.
Fixesgolang/go#47436
Change-Id: If7cdb6741e895315bb6a6de2f207b404e15b269a
GitHub-Last-Rev: 64d606cead064ed5996eb7d55c3664940e7a1deb
GitHub-Pull-Request: golang/tools#333
Reviewed-on: https://go-review.googlesource.com/c/tools/+/339469
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When enriching identifier info with full syntax, it's cleaner to find
the enclosing decl. Use the full decl in hover if we were unable to find
a node in the original type-checked package.
Update the regtest to exercise hovering in a non-workspace package.
Updates golang/go#46158
Change-Id: Ic1772a38fb1758fb57a09da9483a8853cc5498f1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/333690
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We currently support evaluating int literals on hover
if it's a const declaration but not if it's a var. This
change adds support for the same for var.
Fixesgolang/go#45802
Change-Id: I3c4f6024b4b58fed38a5111253aa9e2ac30249fb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/330309
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Going from an import line to an import block with CRLF endings did not
previously work.
Fixesgolang/go#47200
Change-Id: I51334587ad51b828bd0828217ba39fb745d7e835
Reviewed-on: https://go-review.googlesource.com/c/tools/+/334890
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Fix the imports text edits by computing it on first principles. This
fixes at least a couple bugs:
- Incorrect handling of positions between \r and \n with windows line
endings.
- Incorrect computation of edits when the imports source prefix is
synthetically terminated with just \n, but the actual source has
\r\n.
This is an unsatisfying solution, necessary because of the interaction
of token.File with file termination (token.File does not capture this
information).
Efforts to fix token.File proved complicated, and this is causing
problems for our users, so I think we should do this for now.
For golang/vscode-go#1489
Change-Id: I235caf3960c7201af93800d65546fbab5c6e3f4b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319129
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Using the -cpuprofile testing flag for profiling didChange handling
causes the profile to capture the IWL. Add a new -didchange_cpuprof
flag that instruments just the change handling.
Also fix a check for empty workspace files that was preventing
This inaccurate check was preventing the didChange benchmark from
working.
Change-Id: Ie9f5402960ddccda5d6b9b36ae3c111aa5b51bb8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/333939
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CL 333289 introduced a panic, which was subsequently suppressed in test
error output due to the deferred t.Fatal (an interesting gotcha that I
honestly wasn't aware of).
Fix both the panic, and the suppression of regtest panics.
Also fix the regtest editor shutdown to run on a detached context, so
that shutdown doesn't fail for tests that have timed out.
For golang/go#46773
Change-Id: I080a713ae4cd4651476d8b4aab1d2291754a4f5a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/333510
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If a context was canceled during load, only report it as a critical
error if the load actually failed.
Along the way, simplify evaulation of the critical error to use a switch
statement.
Also await IWL in the second Env used in shared regtests. Presumably it
is this Env that is being shutdown prior to IWL, triggering the
panicking code-path from golang/go#47030. I wasn't able to reproduce,
but all panics are occurring in regtest/misc, and this seems highly
plausible.
Fixesgolang/go#47030
Change-Id: I4df65697f644cff275ab1babb783868fd9e10c2d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/332589
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Gopls doesn't send empty diagnostics for open files in some cases
(likely a race to context cancellation). This is probably a bug itself,
but for now don't let this cause TestResolveImportCycle to fail.
Added a TODO to investigate further.
Fixesgolang/go#46773
Change-Id: I197d9b09885951b47b3f90a0480ae75679d2a1a0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/333289
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Gopls's serial processing of didChangeWatchedFile notifications has
historically been a pain point for clients that don't batch file events,
when branch switching or running go generate.
It's "not that tricky" for us to debounce and batch up watched file
notifications on our end, so this CL introduces this functionality as a
new experimental setting. Truth be told it ended up being harder than
expected, due to (1) our requirement for regtests to be able to
determine when diagnostics have completed, and (2) our reliance on
jsonrpc2 for sequencing changes to the server.
To address (1), I factored out the actual processing of change
notifications into a separate method (thus increasing our surprisingly
long chain of method calls). To address (2), I guarded the processing of
file changes with a mutex.
I also guarded some places where views and snapshots were accessed in
potentially racy ways. Our interaction with session.views was rather
complicated, so I had to switch session.viewsMu to a RWMutex.
Add this to the experimental regtest mode, and more generally enable all
experimental features in this mode, rather than just the experimental
workspace module.
Fixesgolang/go#41691
Change-Id: Ifccdbdf86263dbe2e37ffe9f7bbf2a2cd74218b4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/309269
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When setting metadata, we must invalidate any packages that have been
computed with old metadata.
Also make setMetadata atomic, by locking around it in Load. This is just
writing memory after a Load, so should be fast and infrequent. It is
critical that our various maps related to metadata are coherent, so it
makes sense to err on the side of coarser locking, IMO.
Fix a race in TestUpgradeCodeLens.
Change-Id: Iee8003b7e52b9f21681bdba08a009824f4ac6268
Reviewed-on: https://go-review.googlesource.com/c/tools/+/331809
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Allow users to experiment with golang/go#45713 by adding experimental
support for the go.work file. We handle it like a special case, very
similar to the current gopls.mod file mechanism. The behavior is
undefined if both a gopls.mod and go.work file exist. Ultimately, we
will deprecate support for the gopls.mod file if the go.work file
proposal is accepted, so I don't think it's important to be careful
about handling both simultaneously.
Change-Id: Id822aeec953fc1d4acca343b742afea899dc70ff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/328334
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This change adds a shouldLoad field to knownMetadata so that we can be
more selective about reloading these.
If a package has invalid metadata, but its metadata hasn't changed, we
shouldn't attempt to reload it until the metadata changes.
Fixesgolang/go#40312
Change-Id: Icf5a13fd179421b8f70a5eab6a74b30aaf841f49
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Also improve the description of the failing expectations.
Updates golang/go#46773
Change-Id: I9465de8a5005bb7ee719a536f8550afc54bd6044
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Retrying CL 271477, this time with parts of CL 322650 incorporated.
This CL moves to a model where we don't automatically delete invalidated
metadata, but rather preserve it and mark it invalid. This way, we can
continue to use invalid metadata for all features even if there is an
issue with the user's workspace.
To keep track of the metadata's validity, we add an invalid flag to
track the status of the metadata. We still reload at the same rate--the
next CL changes the way we reload data.
We also add a configuration to opt-in (currently, this is off by
default).
In some cases, like switches between GOPATH and module modes, and when a
file is deleted, the metadata *must* be deleted outright.
Also, handle an empty GOMODCACHE in the directory filters (from a
previous CL).
Updates golang/go#42266
Change-Id: Idc778dc92cfcf1e4d14116c79754bcca0229e63d
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This change treats the GOMODCACHE like a directory filter, and it
excludes any modules under the module cache from being considered part
of the workspace. This can happen when users open their entire GOPATH.
To do this, I had to propagate the view's root and gomodcache through
the exclusion functions, and I also had to add BuildGoplsMod to the
snapshot's interface.
Change-Id: Id80b359d73d09a525b380389917451e85357b784
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326816
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In the presence of an import cycle, packages.Load will exclude the
problematic import from Package.Imports. This missing edge means that we
wouldn't correctly invalidate broken package metadata when a problematic
import is deleted. We also weren't treating import deletion as a change
that could invalidate metadata.
Fix this by invalidating any broken packages when an import path is
deleted, anywhere. This could be overly coarse, but there are various
problems with trying to do better.
Also change cycle errors from TypeError to ListError, as this
categorization was misleading.
Fixesgolang/go#46667
Change-Id: Id19e7baf4009632caf3ae9365497552f9b64b5c7
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"type mod" refers to agglutinative expressions such as dereference
"*", invocation "()", and slicing "[:]". When considering an object as
a completion candidate, we check whether applying a type mod would
make it a better candidate.
Previously we tracked the type mods we wanted to apply to a candidate
by setting bool fields. Now instead we keep a slice of the type mods.
This has two main advantages:
- The mods are now ordered which will allow us to format candidates
properly when the same mods can appear in different order (e.g.
"<-*foo" or *<-foo").
- We can now record any mod multiple times allowing for "<-<-foo" or
"foo()()".
I changed the formatting code to always create a snippet object since
that made things simpler. I had to tweak a few snippet helper methods
to accept a snippet argument rather than creating a new snippet.
This commit's only functional change is that we no longer show any
type mods in candidate labels. For example, the user will now see
"foo" in the completion popup instead of "*foo". Showing the operators
adds noise to the candidate list, and we didn't display them
consistently.
Updates golang/go#46045.
Change-Id: I3ea7baa1ee2fee80a1f8cfe88cbae1093ae269ba
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A lot of the time spent for every file change is recomputing the set of
known subdirectories in the workspace. We can easily memoize these known
subdirectories and avoid recomputing them on every file change. Do that
here and update the set as file creations and deletions come in.
Updates golang/go#45686Fixesgolang/go#45974
Change-Id: Ide07f7c90f0cafc3a3cc7b89ba14ab82d4e3ab28
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The test doesn't necessarily need to require exactly 2 log messages, so
the match doesn't need to be so exact.
Updates golang/go#46546
Change-Id: I6ec5dee820c76c41db7b1d4bad3925fc7afe25e4
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This reverts commit 46e69bf3b2.
Reason for revert: Still has bugs associated with it and want to do a release
Change-Id: Ifa80bde147aa23aa4029a157d5dbaf6479d53024
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This test is flaky due to orphaned file reloading. Since it is for an
experimental feature, skip it until we understand the problem.
For golang/go#46375
Updates golang/go#46183
Change-Id: Id6b369f2b61730c8503e3532547708f7689343c3
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Staticcheck's new quickfix category contains optional code
refactorings, such as turning a chain of if/else-if into a switch
statement, or simplifying boolean expressions.
These checks produce diagnostics with the "hint" or "information"
severities. Most use "hint", which produces a subtle hint in VSCode's
UI that a refactoring is available. "information" produces a blue
underline and is only used for those checks that have a very high
likelyhood of improving code readability.
Change-Id: I8f5b4eca67eb6b4e45c17510459d83eb673384e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322492
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Each analyzer in Staticcheck is annotated with the appropriate
severity to use for its diagnostics. For example, most checks in SA*
produce warnings, but some produce errors (e.g. when passing an
invalid regular expression to regexp.Compile).
This will be especially important for a follow-up CL that enables
Staticcheck's new quickfix category, which contains optional
refactorings that shouldn't be flagged as warnings.
Change-Id: I6235303a3bb188ef79f52952c01e9585301a3270
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This CL adds two new commands that let a client request a list of importable packages relative to a Go file and then select which import a programmer would like to add to said file.
Updates golang/go#43351
Change-Id: If12518874a92ed4167bdd711a92e03ee21c7b949
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This CL moves to a model where we don't automatically delete invalidated
metadata, but rather preserve it and mark it invalid. This way, we can
continue to use invalid metadata for all features even if there is an
issue with the user's workspace.
To keep track of the metadata's validity, we add an invalid flag to
track the status of the metadata. We still reload at the same rate--the
next CL changes the way we reload data.
We also add a configuration to opt-in (currently, this is off by
default).
In some cases, like switches between GOPATH and module modes, and when a
file is deleted, the metadata *must* be deleted outright.
Updates golang/go#42266
Change-Id: Iff5e10b641fdb4be270af0cd887a10ee97ac1a19
Reviewed-on: https://go-review.googlesource.com/c/tools/+/271477
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With the new ParseExported logic, we can lose some unexported fields on
exported structs. This can lead to misleading or malformatted hover
information.
Fix this by ensuring we always extract the Spec from a full parse. Since
this path is only hit via user-initiated requests (and should only be
hit ~once per request), it is preferable to do the parse on-demand
rather than parse via the cache and risk pinning the full AST for the
remaining duration of the session.
For golang/go#46158
Change-Id: Ib3eb61c3f75e16199eb492e3e129ba875bd8553e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/320550
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Unimported completion computes invalid text edits with windows line
endings.
To enable this test, add support for windows line endings in the regtest
framework. Doing this required decoupling the txtar encoding from the
sandbox, which was a good change anyway.
For golang/vscode-go#1489
Change-Id: I6c1075fd38d24090271a7a7f33b11ddd8f9decf5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319089
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Unguarded calls to span.URI.Filename() can panic. beginFileRequest
handles this, so use the URI of the returned FileHandle instead.
Fixesgolang/vscode-go#1498
Change-Id: Ie48c27854e4a8ed8cca52ff6547ff580eccb5fd5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319529
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Sometimes users report issues related to edge cases in Gopls that aren't
reproducible. In some of these cases, we end up guarding against
conditions that shouldn't be possible, which is an unfortunately fragile
solution.
Add a new debug.Bug function to both annotate such branches as known
bugs, and help find them when they reoccur. For now this just records
them in the debug server, but in the future we could send the user a
message to the effect of "hey, a known bug has occurred" for debug
builds of gopls.
Also included are some minor cosmetic fixes.
Change-Id: I95df0caf2c81f430661cabd573ce8e338fa69934
Reviewed-on: https://go-review.googlesource.com/c/tools/+/318369
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Support typeDefinition for functions/methods that have only one return value
of a named type. The total number of return values doesn't matter.
Examples:
* func foo() X
* func foo() (X, bool, int)
* func foo() (*float64, *X, error)
Fixesgolang/go#38589
Change-Id: I8840d667437300fd1250a13630e12a36601f0a60
GitHub-Last-Rev: 581d810af959f8b2c0bf62a22e5725f32947f5e4
GitHub-Pull-Request: golang/tools#311
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313093
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Add a benchmark for the processing of workspace/didChange notifications,
attempting to isolate the synchronous change processing from
asynchronous diagnostics. To enable this, add a new type of expectation
that asserts on work that has been _started_, but not necessarily
completed. Of course, what we really want to know is whether the current
notification has been processed, but that's ~equivalent to knowing
whether the next one has been started. Really, it's off-by-one, but
amortized over e.g. the 100 iterations of a benchmark we get
approximately the right results.
Also change some functions to accept testing.TB, because in a first pass
at this I modified the regtest framework to operate on testing.B in
addition to testing.T... but that didn't work out as IWL is just too
slow to execute the benchmarks outside of the environment -- even though
we can ResetTimer, the benchmark execution is just too slow to be
usable. It seems like a fine change to accept testing.TB is some places,
though.
For golang/go#45686
Change-Id: I8894444b01177dc947bbed56ec7df80a15a2eae9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/317292
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Provide some support for template files, implementing most of
https://docs.google.com/document/d/1clKAywucZVBXvL_v4mMhLQXso59lmQPMk1gtSpkV-Xw
Template support is controlled by the option 'experimentalTemplateSupport'
which defaults to false.
Most of the code is in a new 'template' package. Implemented are
semantic tokens, diagnostics, definitions, hover, and references,
and there is a stub for completions.
This code treats all the template files of a package together, so as
to follow cross-references.
Change-Id: I793606d8a0c9e96a0c015162d68f56b5d8599294
Reviewed-on: https://go-review.googlesource.com/c/tools/+/297871
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There are two possible quick fixes for a missing go.sum entry, and the
regression tests always run all available fixes. That never made sense,
but I never got around to fixing it because it didn't cause a problem.
Now that it turns out to be the cause of the problem described in CL
315152, fix it and roll that CL back.
Change-Id: I49430429a99a412f43bd11b30afe8903db99a694
Reviewed-on: https://go-review.googlesource.com/c/tools/+/315910
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In LSP, CompletionItems can say if they are for deprecated names. This
CL implements that for items where the doc comments contain a line
starting // Deprecated.
Semantic tokens now similarly mark deprecated tokens, but in vscode
the default theme doesn't change the display, and the customization
options seem limited to:
"editor.semanticTokenColorCustomizations": {
"rules": {
// only foreground, bold, underline, italic
"*.deprecated": {"italic": true}
}
},
Change-Id: I93ccc227bf4e1e30a4f23b40da4d2cbafe1cd925
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For some reason the "bad" case of this test fails when the main module
is lazy. Since the go.mod file lacks a 'go' version directive, as of
CL 315210 it is upgraded to a lazy module the first time it is edited
by an invocation of cmd/go.
I don't know why this case doesn't exhibit the expected failure mode
when lazy loading is enabled — I guess it's because we attribute the
checksum error to the individual package that needs it instead of the
module as a whole? — but I can't follow this test well enough to
figure out whether there is actually a real problem for lazy modules
here. If there is, we can handle that by adding a new, separate test.
For golang/go#36460
Change-Id: I0949e1f9f5cb1b6c884706e50a9694232308387b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/315152
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Now that this issue has been resolved, we can unskip the tests for it.
Change-Id: I610122a424bedd2cbd066ea9985239fc319e58ae
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313532
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Calling PackagesForFile on builtin.go loads is at a
command-line-arguments package, which has many type checking errors.
Add a new snapshot method IsBuiltin, which is used to avoid calling
PackagesForFile on builtin.go when diagnosing changed files or checking
for orphaned files. There may be other places where this should be used,
but this functionality can't reasonably be pushed down, as
PackagesForFile should always return something.
This exacerbated an existing race to building the builtin, because
ast.NewPackage unfortunately mutates the ast.File. Fix this by just
building the builtin package directly when building the handle. It
should be very fast.
Fixesgolang/go#44866
Change-Id: Ie6c07478493fa011e92e6966289c2fa822d87b35
Reviewed-on: https://go-review.googlesource.com/c/tools/+/314290
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Before this change directory names were used "as is" for package completion.
It could lead to invalid suggestions (for example, 'package 1abc' or package 'ab-cd').
This change adds a check whether a directory name can be used in a package path.
If the directory name is invalid, only 'package main' will be suggested.
Otherwise, the directory name will be normalized and will be used as a package name.
Note: normalized directory names contain only lower case letters and digits.
Fixesgolang/go#44680
Change-Id: I4b710f90d1723c512e29dc3c248a1e681f1cd37f
GitHub-Last-Rev: 8ae69f1c6fdf80831e5773bdb3507a8d51a4a0cf
GitHub-Pull-Request: golang/tools#310
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The utility of the debug server is limited by the requirement to start
gopls with the `-debug` flag and then look in the logs to see which port
the debug server is bound to.
This CL adds a new custom command `gopls.startDebugging` to start the
debug server on demand if it isn't already running, and return its debug
address. It also does some gymnastics to make this turn on debugging for
any intermediate gopls forwarders, when using daemon mode.
For golang/go#45518
Change-Id: I48a90088f96aca54f34f93bedbfe864515320f61
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Rebecca Stambler
Robert Findley
Matthew Dempsky
Muir Manders
Shoshin Nikita
danishprakash
Dominik Honnef
Marwan Sulaiman
Peter Weinbergr
Heschi Kreinick
Bryan C. Mills