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Commit Graph

1928 Commits

Author SHA1 Message Date
Heschi Kreinick
2db8f0ff89 internal/lsp/cache: fix -mod=mod for workspace module setups
When we're in workspace module mode, there may not be a go.mod at the
root of the workspace, so checking modURI != "" doesn't tell us whether
module mode is on. Add a flag to workspaceMode which is exactly that.

There are probably many more places that should be updated, but since
the design is in flux I don't want to cause more churn than necessary.
This is enough to unblock -mod=readonly by default.

(I missed this in CL 253799 because I was running the wrong Go Version.)

Change-Id: I718ee44c7a2547c90f9d62393aba390c9b4b0f46
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254756
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-15 17:38:23 +00:00
Rebecca Stambler
6498648128 internal/lsp: check file kind before showing warning
We had been previously popping up warning for go.mod files.

Change-Id: I6ff016e94ec46467a5c60309f825798961df66f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254939
Trust: Rebecca Stambler <rstambler@golang.org>
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2020-09-15 03:16:44 +00:00
Rebecca Stambler
17fc728d0d internal/lsp: handle staticcheck in code actions
Missed this in CL 254038.

Change-Id: I485f6e9112628dc4ff83e7ea47b59b340742711f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254597
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-14 16:17:55 +00:00
Rob Findley
2350fe8b0e internal/lsp/source: fix panic in addFieldItems
I have no idea what I did to trigger this, but I got a panic in this
codepath. Since this is for completion, it should be OK to simply make
this code defensive, without fully understanding the cause.

Here's the panic:
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0xc570f3]

goroutine 5914644 [running]:
golang.org/x/tools/internal/lsp/source/completion.(*completer).addFieldItems(0xc0996ee240, 0x1032020, 0xc0dd21e2a0, 0xc0b99b26f0)
        /usr/local/google/home/rfindley/src/tools/internal/lsp/source/completion/completion.go:1065 +0x193

Change-Id: I82350b30172ead95b6611962c2e040cc49259dc2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254697
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-14 15:58:11 +00:00
Rebecca Stambler
97363e29fc internal/lsp: handle staticcheck in didChangeConfiguration
As we have modified the ways that we control which analyzers get
executed for a given case, we have lost the behavior of enabling and
disabling staticcheck smoothly. This CL splits out the staticcheck
analyzers from the main group so that the "staticcheck" setting can
override whether or not a given staticcheck analysis is enabled.

Fixes golang/go#41311

Change-Id: I9c1695afe4a8f89cd0ee50a79e83b2f42a2c20cb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254038
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-13 03:21:22 +00:00
Heschi Kreinick
b43031a33b internal/lsp/cache: fix for default -mod=readonly
Go 1.16 may set -mod=readonly by default. To maintain current behavior,
gopls needs to override that by passing -mod=mod to all its go
invocations.

While this behavior should be safe on all modern versions of Go, I gated
it on 1.16 just for safety's sake.

Change-Id: Ic8088213d1ab9ab3a3ed0b51f47b2c222974d613
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253799
Run-TryBot: Heschi Kreinick <heschi@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-11 18:30:43 +00:00
Peter Weinbergr
d49a6cb6ca internal/lsp/protocol: add support for upcoming LSP 3.16
These are the changes needed to support Semantic Tokens in the LSP protocol.

Added a function to server.go to make generating server_gen.go work again.

Change-Id: I2e09220560b080dd666e25eaf1a39b9960b6f871
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253938
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-11 12:00:08 +00:00
Rebecca Stambler
d179df38ff internal/lsp/cache: automatically construct the workspace module
This change adds an experimental configuration, which when enabled,
shifts gopls to operate in multi-module mode. It implements the
super-module as described in
https://github.com/golang/proposal/blob/master/design/37720-gopls-workspaces.md.
Replace directives are also added when a workspace module requires
another workspace module (which has not yet been mentioned in the design
doc).

A user-provided workspace gopls.mod file is not yet supported, as it is
not yet testable. Clients will need to add support for change
notifications for the gopls.mod once it is added.

Updates golang/go#32394

Change-Id: I5089358603bca34c5c8db9e5a00f93e1cca0b93f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/247819
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-11 04:00:25 +00:00
Rob Findley
571a207697 internal/lsp/source: fix duplicates in workspaceSymbols
The logic to de-dupe workspace symbols was broken in two ways:
 - The 'seen' map of files already processed was never written.
 - The key to 'seen' was *ast.File, which doesn't work if we parse
   twice.

Fix this by de-duping instead on span.URI.

Change-Id: Iedadfac17a0a993570ff4f8301a97815477f1c2c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254117
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-10 22:23:12 +00:00
Rebecca Stambler
53e29e9d12 internal/lsp: show a warning message when opening an "orphaned" file
Build tags are a common stumbling block for users of gopls, as build
tagged files may be excluded from the initial workspace load without a
clear warning. This change adds a check for every opened file to confirm
if it maps to a package. If not, we show a message with suggestions.

A follow-up improvement might be to check if the opened file actually
has build tags to make the error message more precise (and give a better
example config).

Updates golang/go#31668

Change-Id: I829d8546edea65aa08274021bfde8ea2fb6eeaa1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253798
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-10 16:52:16 +00:00
Heschi Kreinick
6a8222ee25 gopls/doc: generate settings JSON, docs
gopls has many settings. We want to automatically generate
documentation, and we want to allow clients to perform their own
validation if they so desire.

Using all three of AST, type information, and reflection, generate a
JSON description of the settings and their default values. Add a gopls
command that prints it. Add a documentation generator that uses it to
write settings.md.

I assumed that everything not explicitly documented was experimental,
and moved it into that section. I also moved expandWorkspaceToModule to
experimental; I hope it's not long for this world, personally.

Along the way, rename many fields, make the enum matching case
insensitive, and add a stringer call so that the defaults print nicely.

Fixes golang/go#33544.

Change-Id: Ibb652002933e355ed3c6038d6ca48345b39b3025
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252322
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-09 20:53:33 +00:00
Rebecca Stambler
201d438bce internal/lsp: add more tests for package completion
This change adds one more test for package completions (and slightly
modifies the way we pass in file content without a terminal newline).

Also, a few tiny modifications to the package completion code.

Change-Id: I3041b5ad648873881b2b8df17df6f78fbd1898e5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253177
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Danish Dua <danishdua@google.com>
2020-09-09 17:18:21 +00:00
Rebecca Stambler
a4118eb6f6 internal/lsp: break up fillstruct testdata to make it more manageable
Broke a.go into a few files (no real logic to it). These tests could be
categorized better, but it's a good start just to break up that huge
golden file.

Change-Id: I2c173f11ea2766e9232e3ec838c16f535cbee788
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253279
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-08 20:59:11 +00:00
Rebecca Stambler
2e7746ed96 internal/lsp: parse Go files through the new snapshot's cache in clone
I think we had discussed making this change after you finished your
cache rewrites, but I never got back to it. Let me know if you think
there's a better way to do this.

Change-Id: Ia7dfe6830110f21e0d2683e64f8ee0d2549afdea
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253280
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-08 20:42:25 +00:00
Rebecca Stambler
77fbfaef01 internal/lsp: clean up some of the extract function code
This CL creates a struct that simplifies some of the extract function
logic. Also, add a test for extraction with an underscore in the
selection (Josh mentioned that this might not work, but it seems too).

Change-Id: If917614a5824e84fb79a07def3eb75f48f10a5b9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253277
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-08 20:39:53 +00:00
Rebecca Stambler
93a3566fcb internal/lsp/cache: don't set an error by default in load
Change-Id: Icd4495a37f6a3a2eb148d9a1b1949e3741cdd966
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252980
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-08 20:16:59 +00:00
Danish Dua
acefd226e2 internal/lsp/source: move completion to its own package
Completion is slowly becoming a large part of internal/lsp/source and it
makes sense to move to its own seperate package inside source to make
future refactors easier. As a part of this change, any unexported
members from source required by completion are now exported. Util
functions only required by completion are moved from
internal/lsp/source/util.go to internal/lsp/source/completion/util.go.

Change-Id: I6b7405ec598c910545e649bb0e6aa02ffa653b38
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253178
Run-TryBot: Danish Dua <danishdua@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-08 19:19:08 +00:00
Rob Findley
ea3a2cdbfb internal/lsp/source: support some fzf-like tokens in symbol matching
It's useful to be able to switch between case sensitive, case
insensitive, and fuzzy matching for symbol without having to reload
gopls. FZF has some nice syntax for this:
  https://github.com/junegunn/fzf#search-syntax

Adopt a subset of this syntax for our symbol search:
  ' for exact matching
  ^ for prefix matching
  $ for suffix matching

It would be straightforward to also support inversion, using
'!', but I deemed this unnecessary.

I think we should adopt this, since none of these symbols conflicts with
Go identifiers, or (AFAIK) with special syntax in major LSP clients.

Change-Id: If2e4d372d4a45ace5ab5d4e76c460f1dcca0bc2b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/248418
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-08 16:35:05 +00:00
Rebecca Stambler
242af255f0 internal/lsp/analysis: update fillreturns title
Update the title of the diagnostic to account for the fact that
fillreturns can also use in-scope variables to fill in values.

Change-Id: Ib506af76a4187ef611e96b2602f301432fcbccf0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253278
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-08 15:52:18 +00:00
Rob Findley
9786fa3777 internal/lsp/source: fix go1.12 build (again)
A recent change (silently) broke our go1.12 presubmit, because we don't
yet have a means to surface this breakage.  Coming soon: a 'gopls CI'
custom Gerrit label.

In the meantime, fix the build.

Change-Id: I31f5b7512403fdbd8869652cd4b8e77b084c8534
Reviewed-on: https://go-review.googlesource.com/c/tools/+/253517
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-08 15:34:30 +00:00
Peter Weinbergr
39188db588 internal/lsp: add support for RelatedInformation in diagnostics
The type checker sometimes emits secondary diagnostics. For instance,
if a function is defined twice, then when it sees the second definition
it emits a diagnostic at the second definition and a secondary diagnostic
pointing to the first diagnostic. Presently gopls treats these as two
separate diagnostics. The changed code still produces two diagnostics,
but now the secondary diagnostic is also converted into a
RelatedInformation so the user sees a xpointer to the earlier definition.

Updates https://github.com/golang/go/issues/39062.

Change-Id: Ic421ec91d2b46c28681ab3ec010d5b02c0442e68
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251617
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-04 18:57:47 +00:00
Danish Dua
93eecc3576 internal/lsp: support for package completion in all files
This change adds support for package completion in all files at valid
positions. By parsing expressions from an invalid file, we can check if
the cursor is at a position where package completion would be a valid
suggestion. These are positions above any other statements or
declaration or at prefix of the keyword pacakge above these
statements/declarations. This also introduces imporved end of file
handling in completion.

Change-Id: I2a865d018f58c3a98b69fb4100d186b507d123bd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251618
Run-TryBot: Danish Dua <danishdua@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-04 14:04:24 +00:00
Rob Findley
af4cc2cd81 gopls/internal/regtest: use gopls hooks and add a test for staticcheck
To match the actual gopls binary, use hooks.Options when creating the
regtest server.

Add a test for staticcheck diagnostics to leverage this.

For golang/go#39384

Change-Id: I52837c2b12bb586a2530343bdfae5172b08df49c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252683
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-03 18:57:44 +00:00
Rob Findley
e2cc5a1191 gopls/integration/regtest: move regtests to the gopls module
Regtests are slow, and make `go test ./internal/lsp/...` slow. Also,
having them in the tools module means they can't use staticcheck,
go-diff, etc.

Move them to the gopls module. This means that they're annoying to work
with unless you open the gopls module, but hopefully that annoyance will
be gone soon when we support multi-module workspaces.

For golang/go#39384

Change-Id: Ib99c994ffdac56d4da13af981ad397a90a7523af
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252682
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-03 18:25:45 +00:00
Rebecca Stambler
cf7880770c internal/lsp: reproduce and fix golang/go#41057
Fix the comment end position for multi-line comments to account for the
closing "*/".

Fixes golang/go#41057

Change-Id: I5dd3886a81d274514e78f47ac2e7194fd9cceb06
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252457
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-09-02 22:40:51 +00:00
Heschi Kreinick
36b1a880d5 internal/lsp/cache: use the right snapshot in ModUpgrade
Cache computations need to use the passed in snapshot.

Fixes golang/go#41056.

Change-Id: I09501f3fc6abccedcf33482c9ee4d58146fbe716
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252437
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-09-02 17:11:20 +00:00
Rebecca Stambler
5d67d6c6f5 internal/lsp: clean up some of the mod code lens code
Refactor the checks for code lenses being enabled out of the source
package so that the mod code lenses can also make use of them.

Also, a few small changes to the titles of the `go mod tidy` and `go mod
vendor` code lenses.

Change-Id: I4e79ab08a4e7aea4d4d6de6fd652d0b77d30c811
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252397
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-02 16:06:48 +00:00
Rebecca Stambler
d1954cc86c internal/lsp: run gopls as long as there is one folder with a file URI
Fixes golang/vscode-go#585

Change-Id: Icb4295f1cab5c0fe60c86dd5f911023f70d2dd62
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252123
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-02 01:26:52 +00:00
Rebecca Stambler
c30460096a internal/lsp/regtest: reproduce edge cases when creating new files
This adds tests for golang/go#40690, as well as a case for a bug in
changing package names.

Updates golang/go#40690

Change-Id: I516404e77728024f8bee3da31a88bad1f1917a9b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251017
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-02 00:53:14 +00:00
Rebecca Stambler
bf6e7d25bf internal/span: remove check for nil content
We should instead treat nil content as an empty file.

Change-Id: I45f1d1c9f3382d2ef7f6d9769c808fd871d603e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252122
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-09-02 00:13:12 +00:00
Danish Dua
cf97e2b30f internal/lsp: add package completion suggestions
This changes add package completions suggestions for new files. Package
suggestions are other packages used in the same directory, test
packages for those packages, the package 'main' and the directory name.

Fixes golang/go#34008

Change-Id: I69922e0cb0787e82eebe505618c3c07aa48859e6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251160
Run-TryBot: Danish Dua <danishdua@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-01 20:18:13 +00:00
Rob Findley
80e1b0398e internal/lsp/lsprpc: make the LSP forwarder exit error clearer
In cases where the remote panics, make it clearer in the forwarder logs
that the remote has disconnected.

Change-Id: Ic7f9370f615198274696a18adaefe7dc62cac02e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250508
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-09-01 17:31:45 +00:00
Rebecca Stambler
6fbec87eed internal/lsp: use -json for module upgrades
This is better than parsing the default output.
Also, change the start progress message, since it ends up duplicating
the title in the message that the user sees.

Change-Id: I3540d30c7976c6be0722531b2e258341081e0b72
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251920
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-01 17:31:32 +00:00
Rebecca Stambler
fd8950f6eb internal/lsp: add a test that reproduces golang/go#37069
Also, add a directory parameter to RunGoCommand. To make sure that the
parameters aren't misused, change args to a []string.

Updates golang/go#40340

Change-Id: Ib5ce606a401a18c29c904b570ec9339f067a3961
Reviewed-on: https://go-review.googlesource.com/c/tools/+/245818
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-01 15:23:12 +00:00
Rebecca Stambler
5deb263172 internal/lsp/cache: don't invalidate metadata for new invalid imports
Our metadata reloading model makes typing out import paths manually
very slow. We can avoid some of the slowness by not invalidating
metadata when a new import path is obviously invalid.

Updates golang/go#35877

Change-Id: Ifcf9ebaac0b146a2098ef8d411fa85fefa7ba6ca
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251086
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Danish Dua <danishdua@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-08-28 16:18:49 +00:00
Rob Findley
6c983e6784 internal/lsp/fuzzy: fix return value on no match
The fuzzy matcher doc string says that it returns 0 on no match, but
this is in fact not true: it returns -1 on no match.

0 makes more sense, so fix the implementation rather than the docstring.

Change-Id: I997a6b5dcb1d7c25cc73b2c236d24647f9326c80
Reviewed-on: https://go-review.googlesource.com/c/tools/+/248417
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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2020-08-28 15:37:48 +00:00
Danish Dua
97019fc2e6 internal/lsp/source: remove dead code from completion
This code seems to be duplicate of L509-L522 in this CL. It doesn't
affect the results of completion in any way since we already return
early from where we can.

Change-Id: I30ee1c94e58860f86d773d46cb1e527b2e646ef4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251261
Run-TryBot: Danish Dua <danishdua@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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2020-08-28 01:33:09 +00:00
Rob Findley
3c805d2368 internal/lsp/source: add some downranking for workspace symbols
Downrank symbols in packages outside of the workspace.

For golang/go#40548

Change-Id: Ie83f42f844e57aae5fc397d105f33858d6e44d0f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/248383
Run-TryBot: Robert Findley <rfindley@google.com>
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2020-08-27 19:11:38 +00:00
Robert Findley
88346e9948 internal/lsp: refactor workspace Symbol method
This is based on Paul Jolly's CL 228760, updated to use the new cache
API, support the symbolStyle configuration option, and lift up the
concept of symbol score for later improvement.

From that CL:

There are a number of issues with the current implementation:

* test variant packages are not handled correctly, meaning duplicate
  symbols are returned
* fuzzy results are not ordered by score

We refactor the implementation of workspace symbol to use a
symbolCollector that carries context during the walk for symbols. As
part of resolving the test variant issue, we first determine a list of
packages to walk.

(*symbolCollector).collectPackages gathers the packages we are going to
inspect for symbols. This pre-step is required in order to filter out
any "duplicate" *types.Package. The duplicates arise for packages that
have test variants.  For example, if package mod.com/p has test files,
then we will visit two packages that have the PkgPath() mod.com/p: the
first is the actual package mod.com/p, the second is a special version
that includes the non-XTest _test.go files. If we were to walk both of
of these packages, then we would get duplicate matching symbols and we
would waste effort. Therefore where test variants exist we walk those
(because they include any symbols defined in non-XTest _test.go files).

One further complication is that even after this filtering, packages
between views might not be "identical" because they can be built using
different build constraints (via the "env" config option). Therefore on
a per view basis we first build up a map of PkgPath() -> *types.Package
preferring the test variants if they exist. Then we merge the results
between views, de-duping by *types.Package.

Finally, when we come to walk these packages and start gathering
symbols, we ignore any files we have already seen (due to different
*types.Package for the same import path as a result of different build
constraints), keeping track of those symbols via symbolCollector.

Then we walk that list of packages in much the same way as before.

For golang/go#40548

Co-authored-by: Paul Jolly <paul@myitcv.io>
Change-Id: I8af5bdedbd4a6c3631a213d73a735aea556a13ae
Reviewed-on: https://go-review.googlesource.com/c/tools/+/247818
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-08-27 18:13:30 +00:00
Danish Dua
84ab570110 internal/lsp: add completion suggestions for import statements
This change adds completion within import blocks. Completions are suggested by directory depth of import so end user isn't shown a large list of possible imports at once. As an example, searching import for prefix "golang" would suggest "golang.org/" and then subdirectories under that (ex: "golang.org/x/"") on successive completion request and so on until a complete package path is selected.

Change-Id: I962d32f2b7eef2c6b2ce8dc8a326ea34c726aa36
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250301
Run-TryBot: Danish Dua <danishdua@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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2020-08-27 18:03:53 +00:00
Rob Findley
06cc1d0a36 internal/lsp/regtest: add benchmarks for IWL and completion
Add additional benchmarks following the pattern of symbol benchmarks.
One for initial workspace load, and another for completion.

Change-Id: Iba826b188cb81dffabb1b08287dc7b76250dc54c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250802
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-08-27 17:51:12 +00:00
Peter Weinbergr
021d7c6f1e lsp/general.go: change error messages to give more context
The origin and meaning of error messages in IDEs is sometimes obscure.
For instance "unexpected config annotations\nSource: Go (extension)" in vscode has an ambiguous Source, and it's not clear what config annotations
are being referred to. This CL would change the first part of that
message to "unexpected gopls setting 'annotations', making clear that
the message is from gopls (and not the Go extension shim), and that the
suspect value is 'annotations' itself.

Change-Id: Ia79534859fe101e6fbbd660bf426e2c1ac619b7f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251078
Run-TryBot: Peter Weinberger <pjw@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-08-27 16:34:09 +00:00
Rebecca Stambler
debfaf60dc internal/lsp, go/packages: work-around invalid files in GOPATH mode
This change adds a test for this case (empty test file in GOPATH mode)
to go/packages. It is skipped for now, as the go/packages work-around is
too brittle to justify adding. Instead, we suppress gopls-generated
error messages in pop-ups--users should only see error messages if they
come from go/packages.

Fixes golang/go#40825

Change-Id: I0e2af53578d65739ebae582075498d997fc019d7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250949
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-08-27 16:29:21 +00:00
Rebecca Stambler
989ebae23e internal/lsp/source: do not allow extraction of an import spec
Fixes golang/go#40635

Change-Id: Iab8ca37d251a95334c19f32873f9ba9cc1bdd2f4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/251018
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-08-27 16:06:11 +00:00
Rob Findley
df83f4e7c1 internal/lsp: fix builds and tests for go1.12+
Seems we've drifted a bit from go1.12 support, mostly due to error
wrapping.

Fix this, as well as some assorted other failures.

I haven't tested 1.12 interactively.

For golang/go#39146

Change-Id: Id347ead2a13e89b76d2ae0047750e6b6b49911eb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250941
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-08-27 14:30:46 +00:00
Rob Findley
17fd2f27a9 internal/lsp/regtest: add a workspace symbols benchmark
It's pretty easy to add an LSP benchmark using the regtests, provided we
run the benchmark ourselves from inside the runner. Do this for
workspace symbols to start, though we should add several of these.

Also fix some error messages when setting options.

Change-Id: Iab134018edec8837e90a0a926ec2e73addf95bb3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250798
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-08-27 01:05:19 +00:00
Rebecca Stambler
b85e56c1dc internal/lsp/source: sort references and implementations results
We should make sure to return deterministic results for these requests.

Fixes golang/go#40904

Change-Id: If10489e3eca0e1b6a5e449de851d332f2d91ceb4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250737
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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2020-08-26 22:01:59 +00:00
Danish Dua
bc8aaaa29e internal/lsp: ignore period ('.') triggered completions in comments
Period triggered completions don't provide any use in comments and in
worst case can be nuisance. LSP provides a completion context which
provides more info about what triggered a completion and hence we can
use this to ignore period triggererd completions. This will also provide
us options to deal with retriggered completions etc. better in the
future.

Change-Id: I8449aee0fe3cf5f9acf315865ac854d5c894d044
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250337
Run-TryBot: Danish Dua <danishdua@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-08-26 04:07:57 +00:00
Rebecca Stambler
f57a28cb8c internal/lsp/source: use space character in markdown formatting
Use space characters instead of the HTML "&nbsp;" character. VS Code and
other clients treat this character differently from a space, so it
results in different formatting. See
https://github.com/golang/go/issues/40947#issuecomment-680497904 for an
image with the difference.

Fixes golang/go#40947

Change-Id: Ia78cb3ba82dcca8303d1b5a0a6d359a3eaca837c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250697
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Reviewed-by: Robert Findley <rfindley@google.com>
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2020-08-26 03:44:07 +00:00
Rebecca Stambler
28d6951fb6 internal/lsp/mod: handle nil pointer exception for empty go.mod files
Fixes golang/go#41005

Change-Id: I1745c5233977d1b5603cfbb334ff087649feaa80
Reviewed-on: https://go-review.googlesource.com/c/tools/+/250657
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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2020-08-26 01:43:00 +00:00