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
Change-Id: I47c8c96d595d62e1c444285ce69ce6a4e61fa74c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/387634
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This analyzer was written at a time when any was only allowed in
constraints, and usage of any vs interface{} was more likely to be
confusing.
Any is now allowed anywhere, and so it is inconsistent to suggest it
only for constraints. However, we can't suggest any over interface{}
everywhere, as that would be incredibly noisy.
Perhaps we should remove this analyzer, but for now simply change it to
off by default.
Change-Id: Ib9726bdb835808d69827c6cd8e4a58dc5d83ad0e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/387614
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This CL adds a quickfix CodeAction that detects "missing method"
compiler errors and suggests adding method stubs to the concrete
type that would implement the interface. There are many ways that
a user might indicate a concrete type is meant to be used as an interface.
This PR detects two types of those errors: variable declaration and function returns.
For variable declarations, things like the following should be detected:
1. var _ SomeInterface = SomeType{}
2. var _ = SomeInterface(SomeType{})
3. var _ SomeInterface = (*SomeType)(nil)
For function returns, the following example is the primary detection:
func newIface() SomeInterface {
return &SomeType{}
}
More detections can be added in the future of course.
Fixesgolang/go#37537
Change-Id: Ibb7784622184c9885eff2ccc786767682876b4d3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/274372
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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
Change-Id: Ied052ded514bb36f561737698f0e2d7b488158e7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/383774
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For dense queries, the fastfuzzy matcher is around 3x faster. It also
has improved scoring for exact matches of CamelCase words or path
segments.
Fixesgolang/go#50016
Change-Id: I04cae11cbc54de59d54733836876a9ee759c80b6
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We have inconsistent rendering of newlines in enums, as pointed out in
CL 314189 (that change edited the markdown directly, which won't work).
Change-Id: Ie39b80fe65287bd447d18cacdaea60b24b4bd08f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/369957
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The fastfuzzy matcher is around 3x faster than the fuzzy matcher for
queries that need to search a large number of symbols, and has improved
scoring due to built-in knowledge about the structure of Go symbols.
Enable it in experimental builds of gopls, with plans to enable it by
default in the next release.
For golang/go#50016
Change-Id: Ie2c333f248bb8397d92f52fbbfdd2bf623372d0a
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There is no standard for go template file extensions, and users may not
want this functionality. Make template support opt-in by changing the
default value of templateExtensions to be [].
Updates golang/vscode-go#1957
Change-Id: I7e37d22b1bc63d8300634b3b0394b4036b43fa49
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Adds 'templateExtensions' (with default ["tmpl", "gotmpl"]) to control
which files gopls considers template files.
Adds template support documentation to features.md.
Fixesgolang/go#36911
Change-Id: If0920912bf3748d1c231b3b29e7a008da186bede
Reviewed-on: https://go-review.googlesource.com/c/tools/+/363360
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Move template processing out of experimental and enable it. Users
can set the option 'templateSupport' to false to disable it.
Also, add a new flag 'templateExtensions', defaulting to ['tmpl','gotmpl']
to let the user provide a list of extensions of files
to be considered as template files.
Change-Id: I724387738c1632256999cda304d6cf9fa48ed91d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/362241
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I mistakenly used DynamicConfigurationSupported for all capabilities,
not just the workspace/configuration one.
Fixesgolang/go#48600
Change-Id: Ie9b205d89da6e4d110a5310b31fc1ba22f2b5383
Reviewed-on: https://go-review.googlesource.com/c/tools/+/352055
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This CL adds a new infertypeargs analyzer, which finds call exprs where
type arguments could be inferred, and suggests a quick fix to simplify
them.
Along the way, may two changes to the supporting frameworks:
- Initialized types.Info.Instances in go/packages
- Fail analysis tests run with suggested fixes if formatting the
resulting source fails.
Change-Id: Ib15e5bd7c26aa293c5fc18a4cff6bc047e9e31d2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/351552
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I missed the TODO in undeclaredname to add support for functions, so
really this belongs in that analyzer. This removes a fair bit of code.
However, the type error analyzers don't really work with the go/analysis
testing framework because the suggested fixes are split from the
diagnostics, so I moved the tests into the gopls tests.
Change-Id: I861a7ad531d2732fe698ee0ac46f23ad53b16812
Reviewed-on: https://go-review.googlesource.com/c/tools/+/351333
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Add an analyzer that checks for empty interfaces in constraint position,
that could instead use the new predeclared "any" type.
Change-Id: I6c11f74c479c2cba64b3b12e61d70d157f94393b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/351549
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This adds an analyzer that provides suggested fixes for undeclared name
errors on function calls, implementing a stub of the fuction (with an
empty body). As of now this doesn't try to guess returned types but
only parameters.
Generated functions are appended at the end of the file where these type
errors occur.
Updates golang/go#47558
Change-Id: Iaef45ada6b7b73de1fbe42e5f7e334512b65e6c7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/348829
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This change adds a command that can be used to see the difference in
API between two gopls versions. It prints out the changes in a way that
can be copy-pasted into the release notes.
Also, only run the copyright test with 1.18. I wanted to do this before
to use filepath.WalkDir, but now it also doesn't work with generic
syntax (it doesn't use packages.Load, so doesn't respect build tags).
Fixesgolang/go#46652
Change-Id: I3670e0289a8eeaca02f4dcd8f88f206796ed2462
Reviewed-on: https://go-review.googlesource.com/c/tools/+/327276
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We use a case-insensitive comparison so this doesn't really
matter but it's a bit confusing that gopls/doc/settings.md and
internal/lsp/source/api_json.go were inconsistent here. I'm assuming
the latter also shows up as user-visible documentation somewhere,
probably in the VSCode plugin.
Change-Id: I14fa5b9d062266b6de0397aafb36e0ad84730752
Reviewed-on: https://go-review.googlesource.com/c/tools/+/344353
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There is a TODO to remove the "codelens" alias. This updates an
example in the documentation to use the new name.
Change-Id: Id807e99f5ba1da663eae9660fb65521596b0c488
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It is unlikely that users want gopls operating on their node_modules
directories, so we should exclude them by default. If a user wants to
include them, they can override their directory filters setting.
This doesn't exclude *any* directory named "node_modules", so we still
need to implement golang/go#46438 to exclude node_modules completely.
Change-Id: I03c42208e62390dc35e44ac5176422ddf8dc53f7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/347297
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Hook up the new fast SymbolMatcher as an option.
Benchmark ("test" in x/tools): 48ms->21ms (with the new matcher)
Benchmark ("test" in kubernetes): 857ms->199ms (with the new matcher)
Change-Id: Ic638eda1ed10572638f32879dd9b56467ae305ef
Reviewed-on: https://go-review.googlesource.com/c/tools/+/338695
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This option has been enabled by default for a while now: remove it from
'experimental' to 'advanced'.
Change-Id: Id8116bf7b8976204a61fe1bbf9dc0b8bd69c68d1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/309271
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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
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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 CL cleans up doc/commands.md to include missing command
documentation and add support for result parameters.
Included are some quick-and-dirty extensions to the command metadata
loader that handle slices and arrays of struct types.
Change-Id: I43a85e88c9c53e21b790d89a45a9de444addcc63
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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
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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 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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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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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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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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Move postfix completion functionality behind an experimental option
flag. For now users can enable it by setting
"experimentalPostfixCompletions" or "allExperiments".
I added a RunnerOption so regtest tests can tweak *source.Options. I
didn't refactor the "Experimental" mode to use the new RunnerOption
because I didn't fully understand its purpose.
Change-Id: I75ed748710cae7fa99f4ea6ea117ce245a4e9749
Reviewed-on: https://go-review.googlesource.com/c/tools/+/296109
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Trust: Heschi Kreinick <heschi@google.com>
Trust: Rebecca Stambler <rstambler@golang.org>
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Postfix snippets are artificial methods that allow the user to compose
common operations in an "argument oriented" fashion. For example,
instead of "sort.Slice(someSlice, ...)" a user can expand
"someSlice.sort!". The snippet labels end in "!" to make it clearer
they do something potentially unexpected. The postfix snippets have
low scores so they should not interfere with normal completions.
The snippets are represented (almost) entirely as Go text/template
templates. This way the user can create custom snippets to match their
general preferences or to capture common patterns in their codebase.
There is currently no way for the user to create snippets, but it
could be accomplished with a configuration file, custom LSP command,
or similar.
I started by implementing a variety of snippets to help flesh out the
various facilities needed by the templates. The most interesting
template capabilities are:
- The ability to import packages as necessary (e.g. "sort" must be
imported to call sort.Slice()).
- The ability to generate unique variable names to avoid accidental
shadowing issues.
- The ability to weave LSP snippets into the template. Currently,
only {{.Cursor}} is exposed, which corresponds to the snippet's
final tab stop.
Briefly, these are the postfix snippets in this commit:
- foo.sort => sort.Slice(foo, func(...){}) (slices)
- foo.last => foo[len(foo)-1] (slices)
- foo.reverse (slices)
- foo.range => for i, v := range foo {} (slices/maps)
- foo.append
This snippet inserts a self-assignment append statement when
appropriate, otherwise just an append expression.
- foo.copy creates a copy of a slice
- foo.clear empties out a map
- foo.keys creates slice of keys
- foo().var assigns result value(s) to variables
- foo.print prints foo to stdout
Some of these are probably not very useful in practice, and I'm sure
there are lots of great ones I didn't think of.
Updates golang/go#39507.
Change-Id: I9ecc748aa79c0d47fa6ff72d4ea671e917a2d5d6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/272586
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Some of the refactoring changed the way that we label code action kinds,
and we need to add quickfix and fixall kinds for each diagnostic type.
Support a per-kind suggested fix, and fix a small issue in setting the
analyzer for a fixall code action.
Fixesgolang/go#45111
Change-Id: I6bb32c9aa7427b690f42910672d3139579e84478
Reviewed-on: https://go-review.googlesource.com/c/tools/+/303209
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As much as possible, try to unify the codeAction code paths. We always
run analysis now. And rather than assuming certain categories of
analyzers will generate certain kinds of code actions, mark them
explicitly and use that information to filter the actions afterward.
Change-Id: I8154cd67aa8b59b2a6c8aa9c3ea811de2e190db4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/300170
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Type error analyzers can be viewed as enhancing type errors, rather
than analyzers in their own right. Create a source.DiagnosePackage
function that combines the list/parse/typecheck diagnostics with type
error analyzers. This allows us to remove some special cases from the
analysis path, and is a first step in removing all the special
handling for analysis quick fixes.
Along the way:
Pass pointers to source.Analyzer after I spent half an hour chasing a
loop capture bug. Spend a further 2-3 hours chasing slowdown in the
command tests as a result.
Move Unnecessary tag generation into diagnostic creation rather than
as a mutating post-processing step that required cloning diagnostics.
Change-Id: Id246667a9dcf484dc79516f92d5524261c435794
Reviewed-on: https://go-review.googlesource.com/c/tools/+/297879
Trust: Heschi Kreinick <heschi@google.com>
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In CL 295413 we fixed the handling of related type checker diagnostics
to correctly identify the primary and secondary errors at a position.
However, on clients that don't support diagnostic related information,
this can lead to confusing primary diagnostics.
Add handling for clients that don't support related information, to
embed the secondary error in the primary error.
Fixesgolang/go#44735
Change-Id: I3d2470d2a4044661e6ed31ac9ffd2f9ff27f7d4b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/297875
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Update our docgen to include documentation for commands. This is done in
an ad-hoc manner. We'll probably need to iterate on this as we go.
For golang/go#40438
Change-Id: I0a6922aa2f5e7dc4c8a43e0f843ddb54971cbe44
Reviewed-on: https://go-review.googlesource.com/c/tools/+/290190
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Fully switch to the new generated command API, and remove the old
dynamic command configuration.
This involved several steps:
+ Switch the command dispatch in internal/lsp/command.go to go through
the command package. This means that all commands must now use the new
signature.
+ Update commandHandler to use the new command signatures.
+ Fix some errors discovered in the command interface now that we're
actually using it.
+ Regenerate bindings.
+ Update all code lens and suggested fixes to new the new command
constructors.
+ Generate values in the command package to hold command names and the
full set of commands, so that they may be referenced by name.
+ Update any references to command names to use the command package.
+ Delete command metadata from the source package. Rename command.go to
fix.go.
+ Update lsp tests to execute commands directly rather than use an
internal API. This involved a bit of hackery to collect the edits.
+ Update document generation to use command metadata. Documenting the
arguments is left to a later CL.
+ Various small fixes related to the above.
This change is intended to be invisible to users. We have changed the
command signatures, but have not (previously) committed to backwards
compatibility for commands. Notably, the gopls.test and gopls.gc_details
signatures are preserved, as these are the two cases where we are aware
of LSP clients calling them directly, not from a code lens or
diagnostic.
For golang/go#40438
Change-Id: Ie1b92c95d6ce7e2fc25fc029d1f85b942f40e851
Reviewed-on: https://go-review.googlesource.com/c/tools/+/290111
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Add a "licenses" command that shows the licenses of included software.
As special cases, we print the Go license first, and the LSP
specification license second since we bundle a Go version of it.
Change-Id: I3575073766a458c214108643b2b550c407a118dd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/282112
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The possible keys for analyses and codelenses are too long to enumerate
in settings, and we'd need to create enums for all possible analyzer
and code lens names, which is probably not feasible. Instead, collect
the list of possible values from the analyzers and command settings
generation and add them to enum values.
Also, handle default values by setting them in the enum keys instead of
one big default value. Quite a few hacks to get this right, but maybe
there are other better alternatives we can consider in the future.
Fixesgolang/go#42961
Change-Id: I5c096862b5e8fb89fe5d6639b4f46c06492e49c4
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Reviewed-by: Suzy Mueller <suzmue@golang.org>
This CL copies Heschi's structural changes to the options from CL 278433
and makes the necessary adjustments in the JSON and documentation
generation. Nested settings are grouped together and the "status" of a
given setting is also listed. Currently the only possible statuses are
"experimental" and "debug", but I will add "advanced" in a follow-up (to
indicate that a setting is only for advanced users).
The options "set" function still expects flattened settings to avoid
fundamentally changing people's current configurations, so VS Code Go
will just have to make sure to flatten the settings before sending them
to gopls (which should be easy enough).
No names of any settings are changed (Heschi's earlier CL adjusted the
experimental prefixes). As discussed offline, we've decided to prefix
any setting that we expect to delete with "experimental", and so we'll
leave existing setting names as they are.
Updates golang/go#43101
Change-Id: I55cf7ef09ce7b5b1f8af06fcadb4ba2a44ec9b17
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Analyzers are configured in the internal/lsp/source/options.go file as
well as settings, and we can generate documentation for them without
even using reflection. We add documentaton for each analyzer and list
whether or not it is enabled by default.
Change-Id: If0ffcd422f3f4a99ca3645c35197925ea1cc1616
Reviewed-on: https://go-review.googlesource.com/c/tools/+/280352
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Robert Findley
Marwan Sulaiman
Michael Matloob
Peter Weinberger
Rebecca Stambler
Francesco Renzi
Johannes Altmanninger
Dominik Honnef
Muir Manders
Heschi Kreinick
Shoshin Nikita
Ainar Garipov