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Commit Graph

546 Commits

Author SHA1 Message Date
Rebecca Stambler
7cfd24942e internal/lsp/cache: hardcode parse modes instead of guessing them
This change largely reverts CL 217139, which attempted to guess a
package's parse mode based on whether or not it was in the user's
workspace. This ignored the fact that a user may jump to the definition
of a file outside of their workspace.

Fixes golang/go#37045

Change-Id: Icb6b9d055bd1f260013227db1a6a34873c45b680
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218499
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-02-07 20:00:15 +00:00
Tomohiro Kusumoto
112b90105c internal/lsp/source: eliminate setKind
Eliminate unnecessary function

Change-Id: I1b590961c3b2042f244eeb4c11c34fbf20b8b74a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218138
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-07 19:42:34 +00:00
Rebecca Stambler
3d51b05cfb internal/lsp: don't use overlays from the session in the snapshot
Hold the session's overlay mutex the whole time we compute new overlays,
and then pass these overlays directly into clone. This avoids us calling
s.session.GetFile, which can return overlays that the snapshot doesn't
yet "know" about.

Change-Id: I1a10c78e26f8fec64550bfe0a97b5975ea8f976b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218321
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-07 19:21:16 +00:00
Rebecca Stambler
b753a1ba74 internal/lsp: build overlays through the snapshot
This is the first in a series of changes to move overlay handling to the
snapshot instead of the session. We may not be able to fully get away
from managing overlays on the session, but we should be able to only use
overlays when they are known to the snapshot.

Change-Id: I88b125117cd2cfbd0ff9ef16a944a34297c81b10
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218324
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-07 18:37:49 +00:00
Rohan Challa
a9bd9c230f internal/lsp/cache: improve ModTidyHandle cache key
This change alters the key that is used to cache go.mod diagnostic changes, in particular it replaces using the snapshot ID with a string of all the imports used in the module and the hashed contents of the go.mod file. This reduces the number of times that we run "go mod tidy" to only when we detect import changes or the go.mod file is changed.

Change-Id: Icf49db34f44a4ae4772fff6dfb8b9a6955a8e2d6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218238
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-07 18:07:39 +00:00
emahiro
f8c9a4c3ab internal/lsp: export DiffSymbols to avoid duplication
Change-Id: I9002d19067011e0fcff22782eebc593a124594c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218137
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
2020-02-06 20:09:13 +00:00
Rebecca Stambler
222e5d4b1b internal/lsp: don't return references for builtins
https://github.com/fatih/vim-go/issues/2701 contains a report of a panic
when finding references on a builtin. Avoid this by simply not returning
any references.

Change-Id: I195fcb4502634201888f0c65022c9d16169cc1f3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218317
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-06 19:49:06 +00:00
Rebecca Stambler
6224300ba8 internal/lsp: remove unnecessary source.SignatureInformation type
We should just use the protocol.SignatureInformation type, as it's
essentially the same thing. Refactor tests a bit to make use of the
shared type.

Change-Id: I169949f6e23757ce0a6f54de36560c4c8e0479ad
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217731
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-02-06 19:05:38 +00:00
Rohan Challa
2529d2857a internal/lsp/tests: standardize testdata folder format
This change standardizes the folder structure for testdata that are used for testing the lsp. In particular, it uses the following format:
- dir
  - primarymod
    - .go files
    - packages
    - go.mod (optional)
  - modules
    - repoa
      - mod1
        - .go files
        -  packages
        - go.mod (optional)

As we can see, any folder inside of testdata should be of this format, where the primary test files with the markers are all located inside the primarymod folder. The modules folder is used to hold any potential dependencies that are used for testing.

A consequence of this change is that we can have one directory separated by folders, where each folder is it's own module, this allows us to use internal/lsp/tests with go.mod files. Now, tests.Load() will return an array of Data objects, where each object corresponds to one of the directories structured above.

Updates golang/go#36091

Change-Id: I437cc2a2a9fc1bac93779845737aa74383fbf9c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217541
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-06 14:14:23 +00:00
Muir Manders
dd0d5d4851 internal/lsp: filter keyword completions in tests
Filter keywords out of completion results in tests similar to
builtins. You don't care about keyword completions unless you are
explicitly testing keyword completion.

Change-Id: I0caaaef8b0f5b08c4b15ba3ada1a963f35a14028
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217499
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-06 05:08:30 +00:00
Muir Manders
f66ef90017 internal/lsp/source: improve completion after accidental keywords
Completion often fails when the completion prefix happens to be a
keyword. We previously tried to fix this with AST surgery, but
often the accidental keyword is not apparent looking at the AST.
For example:

    chan<>
    foo()

parses as CallExpr{Fun: ChanType{Value: Ident{"foo"}}} with very few
hints that something is wrong, and:

    default
    foo()

is completely omitted from the AST.

Rather than look in the AST, we now instead manually look for a
keyword token that contains the completion position. If we find one,
we treat that as our surrounding identifier.

Updates golang/go#34332.

Change-Id: I68ed0dd905848c0eae61f39ecb8b73adb1e72746
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216961
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-06 05:08:22 +00:00
Muir Manders
50d618665b internal/lsp/source: improve completion involving multiple return values
For example:

// Prefer functions that return one or two values. Previously
// we had no preference.
foo, bar := <>

// Prefer functions that return "(int)" or "(int, ??)". Previously we
// only preferred the former.
var foo int
foo, bar := <>

// Prefer functions that return "(int)" or "(int, int)". Previously we
// only preferred the former.
var foo func(int, int)
foo(<>)

In the above example, we don't handle "foo" being variadic yet.

I also took the liberty to break up matchingCandidate() into separate
functions since it was getting rather long.

Updates golang/go#36540.

Change-Id: I9140dd989dfde1ddcfcd9d2a14198045c02587f2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215537
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-06 05:07:08 +00:00
Daisuke Suzuki
6e8b36d2c7 internal/lsp: add support for workspace symbol
This change adds support for the LSP workspace/symbol. Unlike
documentSymbol, the target is symbols that exist not only in a specific
file, but also in the current or imported packages. It returns symbols
whose name contains the query string of the request(case-insensitive),
or all symbols if the query string is empty.

However, the following is not implemented:
- Setting of deprecated and containerName fields in SymbolInformation
- Consideration of WorkspaceClientCapabilities
- Progress support
- CLI support

Updates golang/go#33844

Change-Id: Id2a8d3c468084b9d44228cc6ed2ad37c4b52c405
Reviewed-on: https://go-review.googlesource.com/c/tools/+/213317
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-05 19:03:17 +00:00
Rebecca Stambler
ab391d50b5 internal/lsp: don't show links in hover for test functions
source.Identifier previously was used for references and rename, so it
needed to take a package policy. Now, it's only used for definition and
hover, so it should always be the narrowest package handle. We can use
this fact to determine if the identifier is located in its declaring
package, and if that package is a test variant, we don't link to the
documentation on pkg.go.dev, since it doesn't exist.

Change-Id: I5686828858a3feafb8ff2e4c5964b562f66db9fa
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217137
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-03 21:56:10 +00:00
Rohan Challa
c4cbd3b08f internal/lsp: add diagnostics in .go files for missing deps in go.mod
This change adds diagnostics to imports in .go files that are missing the dependency in the go.mod file. The quick fix that adds the appropriate require statement is coming in a follow up CL.

Updates golang/go#31999

Change-Id: I314cdbe8e3dd27da744ca0391e7a6e5dc1ebaa77
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216277
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-03 17:57:15 +00:00
Muir Manders
bc0b458b10 internal/lsp/source: improve completion for "make()" args
Fix type inference to expect a type name for the first "make()"
parameter and an integer for later parameters. For example:

   // Previously we expected "[]int{}", now we expect "[]int".
   var _ []int = make(<>)

Note that we don't currently support actually completing to unnamed
type names like "[]int", but this improvement at least eliminates
nonsensical completion suggestions.

   // Previously we had no expectation, now we expect an int.
   var _ []int = make([]int, <>)

Change-Id: Ifd349767662ab6902d3a3ea9e52de7df70cb37c7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217310
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ingo Oeser <nightlyone@googlemail.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-02 23:20:50 +00:00
Rob Findley
b4fe758a9b internal/lsp/source: don't allow mutating DefaultOptions
DefaultOptions was a value type, but held map values. This CL changes it
to a function that returns an Options value that has new instances of
all reference types. It would be better if this function returned a
pointer, but that change ended up being too large. I will need to
refactor handling of options later anyway, in order to support sessions
with differing options for golang.org/issues/34111.

This fixes a race in internal/lsp/tests: internal/hooks/analysis.go
mutates the Analyzers map.

See for example the trybots result at:
https://storage.googleapis.com/go-build-log/0d34f5f0/linux-amd64-race_4ecdf9c8.log

Change-Id: I41be450b590a3f3104ac9a1cb9cb312ea3ff7ff4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217077
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-31 15:48:08 +00:00
Heschi Kreinick
ec2e11d257 internal/lsp/source: check cancellation before analysis
We check cancellation pretty early on in analysis, but not before we
read Options. Checking earlier avoids a race in the command tests.

Fixes golang/go#36699.

Change-Id: I557c0441d70c80e122655be00a03b47080ddb7f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216844
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-29 21:19:39 +00:00
Rebecca Stambler
ae42f3cd5c internal/lsp: recover from a view initialization failure
If an orphaned file is used to recover a workspace package, we should
remove the initialization error and treat the view as correctly
initialized.

Also, stop caching metadata for packages with no files. We have no way
to invalidate it, and it's useless, so just re-load those files as
needed.

Fixes golang/go#36795.
Fixes golang/go#36671.
Fixes golang/go#36772.

Change-Id: I0aee5a43401517b6073d27136cca533160effef2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216637
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-28 22:02:46 +00:00
Rohan Challa
dd312ab63b internal/lsp: surface missing dependencies for imports not in go.mod
This change sets up the infrastructure to surface the dependencies that are missing in a go.mod file. In a follow up CL, we will use these to add diagnostics to the imports of .go files telling the user to add the dependency to their go.mod file.

Updates golang/go#31999

Change-Id: I697df0d7c6eabfdc2f0c75cb36aa35794647fd13
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214700
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 22:30:17 +00:00
Rebecca Stambler
7736277c76 internal/lsp: remove shadow analysis from default suite
Mostly because I find it very annoying.
But I imagine lots of people shadow variables intentionally, and it's
very noisy.

Also, fix an error caught by the nilness check while I'm thinkng about
analyses.

Change-Id: I1867c8613194028815666efd879899bb5065c9d7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216541
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 21:40:33 +00:00
Rebecca Stambler
ed30b9180d internal/lsp: don't show list errors unless necessary
The go/packages workaround to hide errors for overlay packages doesn't
seem to work well. It's easier to just hide list errors in gopls
diagnostics unless the package genuinely failed to type-check. Check if
the package has missing dependencies as an approximation of if it is
well-typed.

This required some additional special casing for the import cycle error
detection, which now causes them to have duplicate diagnostics. It's a
rare enough case that this doesn't concern me, but we should clean this
up at some point.

Fixes golang/go#36754.

Change-Id: If12c92fb9a0e0b69b711ae9a509ecb1b2a32255c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216310
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 19:59:09 +00:00
Rebecca Stambler
ab094738a9 internal/lsp: fix active parameter for incomplete parentheses
I had originally thought I might be able to use exprAtPos for this,
which is why I ended up eliminating that function when I saw it only had
one use.

One test also had to change in order to fit better with the spec.
Specifically: "If [the active parameter is] omitted or the value
lies outside the range of `signatures[activeSignature].parameters`
it defaults to 0 if the active signature has parameters."

Fixes golang/go#36766.

Change-Id: I400d5b2db2985bfaa5efbcd91225151ca8b5f46a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216309
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 19:24:44 +00:00
Michael Matloob
f3a16861ae internal/lsp/source: add more go/analysis/passes analyzers to LSP's suite
The LSP already supports a bunch of analyses we have less confidence in
than the vet suite so we should add these too.

Updates golang/go#36639

Change-Id: Ifc37d09e3acd73de021be7b45b3d80fe8c00e0d7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215677
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-27 19:05:40 +00:00
Rebecca Stambler
4320446551 internal/lsp: permit renaming symbols declared in other packages
Also, add a test for it.

Fixes golang/go#36743

Change-Id: I750ea36189a4ec5c9dc8553e4739b0238c2b29c8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216306
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 18:56:10 +00:00
Rebecca Stambler
bcecb1fcc1 internal/lsp: return context cancellation from LookupBuiltin
Change-Id: If90d111fbe89d2be445b15ec3721d48280540de9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216305
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-27 18:55:29 +00:00
Rebecca Stambler
bdfa187a52 internal/lsp: remove the checkErrors command in internal/lsp/source
Now that the view can report its own validity, we no longer need to have
an extra function to handle that.

Change-Id: Icd22f9b08601bd0fe18be064c43d21be2d6782e7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216144
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 21:19:55 +00:00
Rebecca Stambler
e0332898b9 internal/lsp: push more build-specific logic into the view
The view should really be able to determine if it's valid, not the
source package. Expand moduleInformation to be buildInfo, and use it to
collect additional details.

Use this information to determine if we should load a view's
subdirectories as part of the initial workspace load. If a module is
initialized, we will recreate the view, so we should be fine. Not sure
what will happen if the directory is moved into GOPATH, but that should
be less of a concern (I think).

Fixes golang/go#35818.

Change-Id: Ic8ceedd37386b1653b8965c64d9ba8953778ab78
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216143
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 21:10:25 +00:00
Rebecca Stambler
1b668f2091 internal/lsp: disable literal completion candidates for some clients
If a client doesn't support the snippet format in completion insert
text, they can't take full advantage of the literal completion
candidates. Disable it in those cases, and remove the setting in
internal/lsp/source/options.go.

Fixes golang/go#36655.

Change-Id: Ibc045a0f2945aab753b0187194a03d0c0398dba5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216299
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-24 20:07:20 +00:00
Rebecca Stambler
24841a4f5f internal/lsp: eliminate redundant view.ModFile function
view.ModFiles used to not return the real mod file, even if one existed.
Now, we construct view.moduleInformation even if -modfile isn't
supported.

Change-Id: I03faf2ea521c2f404d4e1ba47f71ae48f3cb08d9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216138
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rohan Challa <rohan@golang.org>
2020-01-23 22:07:07 +00:00
Rebecca Stambler
59ae353e8e internal/lsp: recreate the view when needed
If the initial workspace load fails (due to a lack of a go.mod file or
an invalid go.mod file), we should try to re-load as changes to the
go.mod come in. Rather than retrying within the view, we just drop the
view entirely and try to recreate it. This shouldn't lead to any
noticeable lag, as anything that has been cached can still be reused.

Fixes golang/go#36531

Change-Id: I6e157075e8b3665f0ceef35e051e56ac3c29f286
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216037
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 21:53:29 +00:00
Rebecca Stambler
219d3418f5 internal/lsp: batch file changes in didChangeWatchedFiles
Remove the special handling for go.mod file saves. This was only really
added to be extra careful, but our cancellation logic should cope with
this.

Fixes golang/go#31553

Change-Id: I0a69bcdeaf6369697e79aba4689a7b714484ccc2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215908
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 20:51:52 +00:00
Rebecca Stambler
e54d0edf47 internal/lsp: support batched on-disk changes in source.DidModifyFiles
We don't yet propagate these batched changes in text_synchronization.go,
but this is the next step in moving towards a batched approach.

Updates golang/go#31553

Change-Id: Id6496af9d5422cc50ccb995f81c71ec1886f965a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215907
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 20:28:28 +00:00
Rohan Challa
0043dadf92 internal/lsp: use x/mod to get edits for go.mod quick fixes
This change uses the wonderful functions from x/mod to get the proper edits for the quick fixes on a go.mod diagnostic. It also creates a goModData structure to hold the data thats gets passed into the various parse functions, this will help reduce the large function prototypes that can occur when we decompose the logic. It also refactors the Modfiles() function to return span.URIs vs FileHandles.

Change-Id: Ifa0896442650f2ddbd8fe98d8f231a9e94c3d042
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215097
Run-TryBot: Rohan Challa <rohan@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-23 20:18:34 +00:00
Rebecca Stambler
ba161d9e22 internal/lsp: add tests for references includeDeclaration setting
Make sure to test both modes, as this is the second time we've
accidentally broken this.

Fixes golang/go#36598.

Change-Id: I3993af3d106b18c76c44ada558b2c6cd9cbfcf17
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215777
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-23 01:39:50 +00:00
Muir Manders
9bae6688e3 internal/lsp/source: support dereferencing for completion
In cases like:

    var j *int
    var i int = <>

We will now provide "*j" as a completion candidate.

Change-Id: I1d35c2dca4864f13f7534e15b17450d784985557
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215358
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-22 21:43:17 +00:00
Rob Findley
78d067421b internal/lsp: remove the Context argument from NewSession
The passed-in Context is not used, and creates the illusion of a startup
dependency problem: existing code is careful to pass in the context
containing the correct Client instance.

This allows passing in a source.Session, rather than a source.Cache,
into lsp server constructors.

Updates golang/go#34111

Change-Id: I081ad6fa800b846b63e04d7164577e3a32966704
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215740
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-01-21 23:07:03 +00:00
Muir Manders
3e306b7b28 internal/lsp/source: rename "typeInference" to "candidateInference"
This is in preparation for inferring stuff beyond just the expected
candidate type.

Change-Id: I31be9c1e4c82d82b1ff848858042a5edf46594e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215340
Run-TryBot: Muir Manders <muir@mnd.rs>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-21 20:43:48 +00:00
Rebecca Stambler
62545537a9 internal/lsp: use correct file identities when computing diagnostics
CL 214586 switched to using URIs in error messages instead of file
identities. It wasn't fully correct because the reports were being
allocated for the file identities in the package handle (which may be
outdated).

Fixes golang/go#36601

Change-Id: I4fcfc02df74d94fff49540c784ef816c357e7232
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215680
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-21 20:00:43 +00:00
Rohan Challa
bd79bb77d6 internal/lsp/cache: create infra for caching go.mod diagnostics
This change creates the infrastructure for caching diagnostics. Right now it uses a naive key of the entire snapshot which does not really add any benefit from using the cache. It also moves some code from inside the internal/lsp/mod to internal/lsp/cache.

Updates golang/go#31999

Change-Id: I599ad281baa062448d33ca0ea88ae6e09e10d73e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215021
Run-TryBot: Rohan Challa <rohan@golang.org>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-21 19:43:28 +00:00
Iskander Sharipov
dbc83e6dc0 internal/lsp/source: fix typeIsValid() inf recursion
typeIsValid() intended to stop on a named type, but
since we called Underlying(), switch case never caught any
named type. To avoid that, do an early check.

Fixes golang/go#36637

Change-Id: I2700afbb8f9678b4542e2e7dccc3be59b1d9ebdf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215238
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-01-21 04:27:40 +00:00
Heschi Kreinick
0cba7a3a9e internal/lsp/source: enable unimported completions by default
Fixes golang/go#31906.

Change-Id: I626ff1fe94a171d2280d9deeb4578b5abc759913
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214947
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 22:05:05 +00:00
Heschi Kreinick
fe56e63357 internal/lsp/source: fix ranking of untyped completions
Claiming that untyped candidates matched the type of whatever we were
looking for messed up rankings in found(). The only other places that
use it will all work better with false. Return false.

Updates golang/go#36591.

Change-Id: I5e1e8af7cc5c27422740cbb77f9a4a20edb1e447
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215322
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 21:50:04 +00:00
Rebecca Stambler
1486df0b25 internal/lsp: do not invoke the Go command when checking common errors
There's no need to do this more than once per view.

Change-Id: I3160adc602764204155dd0e506fd554aeb55d639
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215321
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-17 21:23:25 +00:00
Heschi Kreinick
95ece921ff internal/lsp/source: trim file very carefully
Apparently the AST will sometimes give us offsets past the end of the
file. Don't crash when it does.

Fixes golang/go#36610.

Change-Id: I3cfbf8645bfcea94a5d87bca5bef4236d657b2c0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215119
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 20:34:13 +00:00
Muir Manders
a20955124b internal/lsp: consolidate completion sorting
Move completion candidate sorting into internal/lsp/source so
source_test.go and internal/lsp don't have to duplicate the logic.

Change-Id: Ifbe7ca5ad6a5b74020fd1260b4d4f775709968cf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215137
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-01-17 20:30:43 +00:00
Rohan Challa
ade7f2547e internal/lsp: add highlighting for import statement
This change adds highlights for imports when the cursor is over the use of that import. It also adds it for the opposite direction when the cursor is on the import, it will highlight uses of that import.

Fixes golang/go#36590

Change-Id: Ifd04d81ec9b4fdf2be1b763f31b44d0ef7d92f47
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215258
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rohan Challa <rohan@golang.org>
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2020-01-17 17:07:20 +00:00
Heschi Kreinick
6edc0a871e internal/lsp/source: score in-memory unimported candidates
We were assuming that all in-memory packages were equally useful. That's
not true for projects with a large dependency tree. Call into the
imports code to score them.

While I'm here, score the main module above direct deps.

Updates golang/go#36591.

Change-Id: I07c56dd3ff7338e76f3643e18d35abc1b52d6763
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215023
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-17 01:23:04 +00:00
Muir Manders
0508ad4c83 internal/lsp/source: return obj decl first in find-references
Restore previous behavior where the object's declaration is returned
as the first reference in find-reference calls.

Fixes golang/go#36598.

Change-Id: Ibdeaf9971aa5cb1f3244f6a888fe77bdf386e563
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215057
Run-TryBot: Muir Manders <muir@mnd.rs>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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2020-01-16 16:57:51 +00:00
Muir Manders
473961ec04 internal/lsp/source: improve completion for "range" and "<-"
Now that we understand object "kind" for builtin generic functions, we
can apply it to a couple more places as well:

// prefer rangeable object kinds
for i := range <> {
}

// prefer channels
<- <>

Change-Id: If9cfba3a06b3abde073a9d397000bb3f3b0e9853
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214678
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-16 06:24:25 +00:00