"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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323449
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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/317410
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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 reverts commit 5ab822f631.
Reason for revert: Too early to enable since we need to figure out a plan for formatting directives
Change-Id: I46567b271d4ecd7e4af574221520a72bd8b8e500
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324289
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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322491
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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
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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
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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
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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
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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
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Leave the options flag so people can disable it for now if needed.
Updates golang/go#39507.
Change-Id: I78bbac157caa18c5d9a8e2ffe1a5c5eba4c6c30f
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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
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This change was produced using 'go mod tidy -go=1.17'
with a go command built at CL 315210.
This activates lazy loading, and updates the go.mod file to maintain
the lazy-loading invariants (namely, including an explicit requirement
for every package transitively imported by the main module).
Note that this does *not* prevent users with earlier go versions from
successfully building packages from this module.
For golang/go#36460.
Change-Id: I117d8ae9ea605a4c78ee6a0816739e74b09b2e48
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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
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This enables the narrower "all" pattern described in
https://golang.org/doc/go1.16#all-pattern,
eliminating some otherwise-unnecessary checksums.
For golang/go#36460.
Change-Id: Ia894b1c1d85f8d1317aebb816921e95e7c1da506
Reviewed-on: https://go-review.googlesource.com/c/tools/+/315569
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Clarify that we have best-effort support for the last 4 major Go
versions, and that support for Go releases 3 and 4 versions ago may not
block releases and may be dropped if necessary.
Also explain that Kokoro CI is not automatically re-run when the result
is removed in Gerrit.
For golang/go#45919
Change-Id: Ic1480c9276dad9502aaf885b98bb9445deeed0c5
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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
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It wasn't obvious that there are two different kind of diagnostics
reported by fieldalignment, one for struct size and another for pointer
bytes.
The documentation now mentions both types, and shows an example that
clarify what "pointer bytes" are.
Fixesgolang/go#45541
Change-Id: Ia62fb05980ddddf52e579ac51459aaaed168cfa7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/314469
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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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This test checks that if a single value in the Initialize message
changes, the resulting unmarshalled struct changes in no more than
one place. The implication is that ignoring UnmarshalTypeErrors
in LSP processing is safer than causing a fatal error, which is the
current state.
Change-Id: I64bbf6f785c32fa7483966a117ac3b6f11d573be
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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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We still hear from users for whom gopls uses too much memory. My efforts
to reduce memory usage while maintaining functionality are proving
fruitless, so perhaps it's time to accept some functionality loss.
DegradeClosed MemoryMode typechecks all packages in ParseExported mode
unless they have a file open. This should dramatically reduce memory
usage in monorepo-style scenarious, where a ton of packages are in the
workspace and the user might plausibly want to edit any of them.
(Otherwise they should consider using directory filters.)
The cost is that features that work across multiple packages...won't.
Find references, for example, will only find uses in open packages or in
the exported declarations of closed packages.
The current implementation is a bit leaky; we keep the ParseFull
packages in memory even once all their files are closed. This is related
to a general failure on our part to drop unused packages from the
snapshot, so I'm not going to try to fix it here.
Updates golang/go#45457, golang/go#45363.
Change-Id: I38b2aeeff81a1118024aed16a3b75e18f17893e2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/310170
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Note: this only moves the regtest framework, not the gopls regtest
tests.
Change-Id: Ia70d2e97df8a8bd48a042e5b037c1e56a210b594
Reviewed-on: https://go-review.googlesource.com/c/tools/+/312412
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The previous fix (d1362d7) is not sufficient for all cyclic types.
This change updates Deref function to support more complex cases.
We use a map with underlying types to detect cycles.
Fixesgolang/go#45510
Change-Id: I28f655a9c1d4f363cb7ae3f47db3e8567fe6e80a
GitHub-Last-Rev: 4c898741c0cf07cb765b759b1edf15e004fc1a0e
GitHub-Pull-Request: golang/tools#305
Reviewed-on: https://go-review.googlesource.com/c/tools/+/310311
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Return a pointer type if the type refers to itself (for example, type a *a).
Fixesgolang/go#45510
Change-Id: Ifaf9c0fe9df8a1cab300479394a7127dfb820a88
GitHub-Last-Rev: 009802341673cfd24c04d6a115a6082029dfa2a2
GitHub-Pull-Request: golang/tools#302
Reviewed-on: https://go-review.googlesource.com/c/tools/+/310050
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After the last code correction, the name of the argument is different from the name used in the code.
Was "timeoutms" became "timeout_ms"
Change-Id: Id2c94b9a39ea162a9102e20e33b5ffcd019c5225
GitHub-Last-Rev: 4a2d3c8c6dee3f1995406772b70cfd41a2591071
GitHub-Pull-Request: golang/tools#301
Reviewed-on: https://go-review.googlesource.com/c/tools/+/309229
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First test that it's being run from the tools module's root, and then
that the directory structure is ok.
Fix the formatting of verbose output.
Change-Id: Icd27fb24277ca80069da12825ea60fc30ff399b8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/307269
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Don't use GetParsedFile because it extracts a package with
TypecheckWorkspace mode, but we want to support std and
3rd-party packages. So, we reuse the content of GetParsedFile
directly in Highlight function with TypecheckFull mode.
Fixesgolang/go#43511
Change-Id: Ibd1d42e28a6739ba011113df0e6e7e98d1b86eb5
GitHub-Last-Rev: 3746092210a38ec152faf26c84f6b0a8bb9f0d25
GitHub-Pull-Request: golang/tools#298
Reviewed-on: https://go-review.googlesource.com/c/tools/+/307171
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My hope is that CL 304169 resolved this flake, but we'll have to see.
For golang/go#44099
Change-Id: Iac82dc24167daacd0361eac1a5567048a7ecf11c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/305409
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Muir Manders
Rebecca Stambler
Rob Findley
Dominik Honnef
Marwan Sulaiman
Shoshin Nikita
Peter Weinbergr
Bryan C. Mills
Heschi Kreinick
Pontus Leitzler
Hossein Zolfi
Paul Jolly
Sergey Kacheev