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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/407501
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The argument to f.Fuzz is determined, up to the names of arguments,
by the types of the arguments to f.Add. Inside the function argument
of f.Fuzz, only f.Name and f.Failed are allowed.
(The fset passed to fuzz was for debugging. When the change seems solid
it can be removed.)
Fixesgolang/go#51089
Change-Id: Icf8b8cdfd29e499bcc605a358ca9edaef5baa835
Reviewed-on: https://go-review.googlesource.com/c/tools/+/387615
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In test files, function definitions starting with
Test, Bench, or Fuzz can be completed almost automatically.
For the snippets the user hits tab, completes the name, hits
tab again, and the function is defined, except (of course) for its
body.
Otherwise a completion that fills in the signature is proposed.
Where appropriate, 'TestMain(m *testing.M)' is also offered as
a completion.
Fixesgolang/go#46896 and golang/go#51089
Change-Id: I46c05af0ead79c1d82ca40b2c605045e06e1a35d
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CompletionItem.Label is what is shown to the user. Unless InsertText is
overridden by there being a TextEdit, InsertText should be the same
as Label.
Change-Id: I200739fbdfca19aa33154d5391b3ebcc79dd7af5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/382243
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In
type SyncMap[K comparable, V any] struct {}
func (s *Syn
Syn sould be completed as SyncMap[K, V], as the type parameters
are required for receivers by the language definition.
fixesgolang/go#50684
Change-Id: I6946d41c49df8bbd336225718c36e3c17dde0b6f
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TestPostfixSnippetCompletion appears to produce racy writes to the
filesystem, and the failure mode does not seem to be
platform-specific. This skips the test to reduce noise until someone
has the time to investigate in more depth.
For golang/go#50707
Change-Id: I31c3aaf0cdb92ae2323cc8a926d3775d1433a9ff
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This adds two new snippets, centred around string manipulation.
The first snippet applies to variables of type string, and is called
split. When used, it replaces `someStringVar.split!` with
`strings.Split(someStringVar, "|")`, where `|` indicates the location of
the cursor.
The second snippet is essentially the same as the first, but in
"reverse". Meaning that rather than going from a string to a slice of
strings, it goes from a slice of strings to a single string:
`someStringSlice.join!` -> `strings.Join(someStringSlice, "|")`.
Change-Id: I0e303a39766463034687f76a5d9dbab419e2021b
GitHub-Last-Rev: 935cc418e75d54f0e5b1194cdb576c8829252a26
GitHub-Pull-Request: golang/tools#347
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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
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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324394
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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323449
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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324290
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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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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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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313509
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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
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313092
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Trust: Rebecca Stambler <rstambler@golang.org>
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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
Trust: Paul Jolly <paul@myitcv.org.uk>
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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
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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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
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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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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
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Allow fixSrc to run multiple times on a file. For example:
func main() {
var s S
if s.<>
}
type S struct {
i int
}
To properly complete at <>, we need to perform two fixes. We must
insert a phantom underscore after "s." to deal with the dangling
selector, and then we must insert phantom "{}" for the "if" statement
to deal with the incomplete "if" block. Previously we stopped at one
fix, but now we allow for up to 10. I added a limit because I am
afraid there are cases where we could get stuck trying to apply the
same fix again and again.
Also, drive-by set isIncomplete=true when we return early in
lsp/completion.go. I have found my editor incorrectly caches this zero
result in certain cases because it thinks results are "complete".
Fixesgolang/go#43471.
Change-Id: Idd34cc164d579fa12a27920dc3afb372799abf26
Reviewed-on: https://go-review.googlesource.com/c/tools/+/289271
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The only thing that the mod tidy diagnostics use the network for is
adding dependencies, and we already have quick fixes for those. The one
exception is the case covered by TestBadlyVersionedModule, a dependency
that fails to declare one of its own dependencies and therefore requires
an indirect dependency in the workspace module. That only triggers an
error on the dependency's import statement, which the user will never
see.
Fortunately, the go command does expose these problems in the DepsErrors
field of the list response. Add an internal API to access that, and turn
it into diagnostics on both the file and the controlling go.mod.
Refactor the go get diagnostic generation so that it applies to both
modules and packages.
Fixesgolang/go#38462.
Change-Id: Ie2af940087654682a40de9ecfccd46f404a88b60
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Regtests have gotten large, and started timing out on some slow
builders. They also can't yet be run in parallel, due to some
process-level shared state (e.g. gc_details). Furthermore, there seems
to be some per-process resource leak that we don't yet fully understand
causing slowdown as the tests progress.
Address these problems by splitting the regtests up into multiple
packages. This also makes it easier to run only relevant tests during
development.
For golang/go#42789
For golang/go#39384
Change-Id: I1a74e4c379f3a650f4c434db44f9368e527aa459
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Robert Findley
Michael Matloob
Peter Weinberger
Bryan C. Mills
A_D
Rebecca Stambler
Muir Manders
Shoshin Nikita
Paul Jolly
Heschi Kreinick