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Commit Graph

129 Commits

Author SHA1 Message Date
Tomohiro Kusumoto
8feddd8b6a internal/lsp/tests: fix missing period
Change-Id: Idb0b6405aefec1dcef84958482325a68afec5348
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218957
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-11 03:20:47 +00:00
emahiro
b6336cbc8d internal/lsp/tests: move workspace symbol test helpers functions into util.go
Change-Id: I747c7a0ca9b41e82e33a39fc91ddc2afaf458be6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218139
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-07 21:23:39 +00:00
Rohan Challa
6fdc5776f4 internal/lsp: add quickfixes for missing dependencies in go.mod
This change adds quick fixes for diagnostics in .go files, specifically for diagnostics that deal with imported packages that are not declared in the go.mod file. These quick fixes will automatically add the dependency in the go.mod file and format the file if there are any issues.

Updates golang/go#31999

Change-Id: Iab151ce96194fae4b1995859aec416c5473da6e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215898
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-07 00:16:14 +00:00
Rebecca Stambler
37215997d4 internal/lsp: move all of the test helpers functions into one file
Each of these files had a couple of functions that were very similar in
nature. There's no need to have separate files for all of these.

Change-Id: I4ca648d1b7e90539f274871d45b7c97a8111631f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218319
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-06 20:47:26 +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
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
64a0f23fc3 go/packages/packagestest: do not overwrite existing go.mod file
This change adds support for testing go.mod files within packagestest. Primarily, if there are markers in the go.mod file, this will copy the contents to a temporary file, build the modcache, then set the contents back.

Updates golang/go#36091

Change-Id: Icb707906eb7fc9e4a06fe043f94f34d9223d84c9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216839
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-06 15:23:23 +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
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
Rohan Challa
7124308813 internal/lsp/tests: add severity parameter to @diag markers
This change will add another parameter to the diagnostic markers (@diag).

Change-Id: I69f4672e7d5417099c11d1a46d9bc45a4d1e5ecc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/217719
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-04 19:24:00 +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
Rohan Challa
de0b176007 internal/lsp: show dependency quick fixes for go.mod diagnostics
This change adds quickfixes for unused dependencies and dependencies that should not be marked as indirect. It also updates the positions for the diagnostics to make more sense relative to the warning message. There is a testing harness now for suggested fixes.

Updates golang/go#31999

Change-Id: I0db3382bf892fcc2d9ab3b633020d9167a0ad09b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/213917
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-01-15 16:51:05 +00:00
Rob Findley
7fd989f60c internal/lsp/tests: correct typo 'CompletionCaseSensitve'
CompletionCaseSensitve is renamed to CompletionCaseSensitive.

Change-Id: I060d02cd72d271d0a1f5595ca35c55e7e142c996
Reviewed-on: https://go-review.googlesource.com/c/tools/+/214802
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-01-15 14:33:14 +00:00
Rebecca Stambler
8f45075ebc internal/lsp: merge completion options into source.Options
This change flattens the completion options type into UserOptions and
DebuggingOptions, which will enable us to generate documentation for
these options more effectively. This results in some modifications in
the tests.

Additionally, the fuzzyMatching and caseSensitive boolean flags are
merged into one setting, matcher, which can be used to specify the type
of matcher that is used for completion. Other requests (notably
workspaceSymbols) may need to use a matcher in the future.

Change-Id: I185875e50351be4090c7a2b3340d40286dc9f4a0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212635
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-01-13 20:09:44 +00:00
Heschi Kreinick
c2a8f45ada internal/imports,lsp: use callbacks for completion functions
We only need to return a relatively small number of completions to the
user. There's no point continuing once we have those, so switch the
completion functions to be callback-based, and cancel once we've got
what we want.

Change-Id: Ied199fb1f41346819c7237dfed8251fa3ac73ad7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212634
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-12-30 21:11:27 +00:00
Rebecca Stambler
1d943b0903 internal/lsp: change CompletionItem.{Command,TextEdit} to pointers
This is a continuation of the discussion on
https://github.com/microsoft/vscode-go/issues/2920. Add corresponding
checks to internal/lsp/cmd/capabilities_test.go.

Change-Id: I51af05dee9e7ecea0e40733dd4c5ca3dfb8f4dd8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/209859
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-12-16 22:14:42 +00:00
Iskander Sharipov
27b81bef4a internal/lsp/tests: add error handling for @item()
If there are less than 3 args for @item, it does an early
return without recording it for a given pos.
This leads to a panic when tests runner can't lookup
a non-nil item for a pos.

Since other collect* methods seem to use t.Fatal for error
handling, do the same in collectCompletionItems().

Change-Id: I21960731f532b93029e6e06800e0484dc7d599df
Reviewed-on: https://go-review.googlesource.com/c/tools/+/211257
Run-TryBot: Iskander Sharipov <quasilyte@gmail.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-12-13 18:39:29 +00:00
Rebecca Stambler
56eb7d2c19 internal/lsp: don't resend diagnostics if they are unchanged
Cache delivered diagnostics on the server so that we can determine if
they should be resent. To be careful about this, we only reuse cached
diagnostics if they are for a greater version, or if we don't know
the file's version and it is unchanged.

Fixes golang/go#32443

Change-Id: I4ba22d85e5b21a8ad6cc62f74cd83c07d3c220cf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208261
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-12-12 04:27:51 +00:00
Muir Manders
259af5ff87 internal/lsp: tweak implementation tests
- Add test count to golden file so test count gets checked.
- Make @implementation note take a list of marks similar to completion
  tests.
- Get rid of unnecessary intermediate test data type.

Change-Id: I741eb14b77b0b8ed08e86c634ed39457116e8718
Reviewed-on: https://go-review.googlesource.com/c/tools/+/210278
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-12-06 20:40:35 +00:00
Heschi Kreinick
efa866333f internal/lsp/tests: skip cgo tests when not supported
I really should have read the trybot results... :(

Change-Id: If2f5d1b8078827efb0cd8ea9165941864bb94d3a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208669
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-25 21:54:41 +00:00
Rebecca Stambler
004141db30 internal/lsp: delete the source.Diagnostic.File field
Since diagnostics are published with the URI separately, there's no need
for us to keep the FileIdentity around in two places.

Change-Id: I5724b9582e5eee49f66fcf9f08625f14a69e3fc0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208263
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-22 00:05:30 +00:00
Rebecca Stambler
eaeb383209 internal/lsp: use version numbers in diagnostic messages
This change uses the FileIdentity when reporting an error message, so
that the version number can be propagated to through the
publishDiagnostics notification.

Change-Id: I6a2103e304717ca09895008ea40336e3ace3c66d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208260
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-21 20:01:42 +00:00
Heschi Kreinick
4bf2f4069d internal/lsp: fix and re-enable godef tests
None of the godef tests were running due to a mistake in the test
harness code. Fix them and re-enable.

We decided that the range for an import statement should be the whole
import path, not just the first character, so make that change and
adjust the PrepareRename tests accordingly.

Change-Id: I45756a78f2a1beb3c5180b5f288ce078075624bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207900
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-20 21:51:18 +00:00
Rohan Challa
0a33398bd9 internal/lsp: improve highlighting functionality for fields and methods
Modified the way highlights are tested to allow for author to explicitly
mark the matches. Also added highlighting for fields and methods. Used
type checking in addition to ast to get better matching. Worked with
@stamblerre

Updates #34496

Change-Id: I462703e0011c4e0a4b98016e9c25af9bf1ead0b9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207899
Run-TryBot: Rohan Challa <rohan@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-20 18:14:12 +00:00
Jay Conrod
298f0cb188 txtar: promote from internal
Rather than copying this package to another repository, let's promote
this one out of internal.

Change-Id: I6f9cc1ada1577a720905271f7471c3afe05a2b41
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207905
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-19 22:48:55 +00:00
pjw
5091d647ee internal/lsp: reorganize the generated Go code for the lsp protocol
Code generation has been unified, so that tsprotocol.go and tsserver.go
are produced by the same program. tsprotocol.go is about 900 lines shorter,
partly from removing boilerplate comments that golint no longer requires.
(And partly by generating fewer unneeded types.)

The choice made for a union type is commented with the set of types. There
is no Go equivalent for union types, but making themn all interface{}
would replace type checking at unmarshalling with checking runtime
conversions.

Intersection types (A&B) are sometimes embedded (struct{A;B;}, and
sometimes expanded, as they have to be if A and B have fields with the
same names.

There are fewer embedded structs, which had been verbose and confusing to
initialize. They have been replaced by types whose names end in Gn.

Essentially all the generated *structs have been removed. This makes
no difference in what the client sends, and the server may send a {}
where it previously might have sent nothing. The benefit is that some
nil tests can be removed. Thus 'omitempty' in json tags is just
documentation that the element is optional in the protocol.

The files that generate this code will be submitted later, but soon.

Change-Id: I52b997d9c58de3d733fc8c6ce061e47ce2bdb100
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207598
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-18 19:51:19 +00:00
Muir Manders
5a76f03bc7 internal/lsp: fix variadic interface completion ranking
In cases like:

var foo []io.Writer
var buf *bytes.Buffer
foo = append(foo, <>)

we weren't giving "buf" a good score. When comparing the candidate
type *bytes.Buffer to the (variadic) expected type []io.Writer we were
turning the candidate type into []*bytes.Buffer. However, of course,
[]*bytes.Buffer is not assignable to []io.Writer, so the types didn't
match. Now we instead turn the expected type []io.Writer into
io.Writer and compare to *bytes.Buffer.

I fixed the @rank test note to check that the candidates' scores are
strictly decreasing. Previously it would allow candidates with the
same score if they happened to be in the right order. This made it
easier to right a test for this issue, but also uncovered an issue
with untyped completion logic. I fixed it to do the untyped constant
check if _either_ the expected or candidate type is
untyped (previously it required the candidate type to be untyped).

Fixes golang/go#35625.

Change-Id: I9a837d6a781669cb7a2f1d6d3d7f360c85be49eb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207518
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-18 05:14:29 +00:00
Francesco Renzi
a3f652f180 tools/gopls: add cmd support for folding_ranges
This change adds command line support for foldingRange.
Provided with a file, it will display a list of folding
ranges within that file, with 1-indexed positions using
the format
{startingLine}:{startingChar}-{endingLine}:{endingChar}

Example:

$ gopls folding_ranges ~/tmp/foo/main.go
$
$ 3:9-6:0
$ 10:22-11:32
$ 12:10-12:9
$ 12:20-30:0

Updates golang/go#32875

Change-Id: Ib35cf26088736e7c35612d783c80be7ae41b6a70
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206158
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-12 00:55:09 +00:00
Muir Manders
c07e1c6ef6 internal/lsp: improve variadic completion
Improve candidate ranking when completing the variadic parameter of
function calls.

Using the example:

func foo(strs ...string) {}

- When completing foo(<>), we prefer candidates of type []string or
  string (previously we only preferred []string).

- When completing foo("hi", <>), we prefer candidates of type
  string (previously we preferred []string).

- When completing foo(<>), we use a snippet to add on the "..."
  automatically to candidates of type []string.

I also fixed completion tests to work properly when you have multiple
notes referring to the same position. For example:

foo() //@rank(")", a, b),rank(")", a, c)

Previously the second "rank" was silently overwriting the first
because they both refer to the same ")".

Fixes golang/go#34334.

Change-Id: I4f64be44a4ccbb533fb7682738c759cbca3a93cd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205117
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-07 18:57:33 +00:00
Heschi Kreinick
88c5938121 internal/lsp/source: propose exports for unimported packages
When a user completes rand.<>, propose rand.Seed (from math/rand) and
rand.Prime (from crypto/rand), etc.

Because we don't necessarily have type checking information for
unimported packages, I had to add shortcut cases to a number of
functions around the completion code. Better suggestions welcome.

Change-Id: I7822dc75c86b24156963e7bdd959443f4f2748b1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204819
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Muir Manders <muir@mnd.rs>
2019-11-04 21:31:03 +00:00
Francesco Renzi
f02a19dded tools/gopls: add cmd support for symbols
This change adds command line support for symbols.
Symbols are formatted as '{name} {type} {range}', with
children being preceded by a \t.

Example:

$ gopls symbols ~/tmp/foo/main.go
$
$ x Variable 7:5-7:6
$ y Constant 9:7-9:8
$ Quux Struct 29:6-29:10
$ 	Do Method 37:16-37:18
$ 	X Field 30:2-30:3
$ 	Y Field 30:5-30:6

Updates golang/go#32875

Change-Id: I1272fce733fb12b67e3d6fb948f5bf3de4ca2ca1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203609
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-01 17:43:07 +00:00
Kalman Bekesi
b8f202ca5e tools/gopls: add command line support for links
This adds support for calling links from the gopls command line,
e.g.

$ gopls links ~/tmp/foo/main.go

Optional arguments are:
-json, which emits range and uri in JSON
With no arguments, a unique list of links are emitted.

Updates golang/go#32875

Change-Id: I1e7cbf00a636c05ccf21bd544d9a5b7742d5d70b
GitHub-Last-Rev: 7ed1e4612186bce4077d3c73f2407cf6def211d9
GitHub-Pull-Request: golang/tools#181
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203297
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-01 17:18:15 +00:00
Michael Matloob
02d0efc0fb internal/lsp: add support for implements to the LSP
This adds support for the LSP implemention call, based
on the guru code for getting implementations. The guru code
did much more than we need, so some of the code has been
dropped, and other parts of it are ignored (for now).

Fixes golang/go#32973

Change-Id: I1a24450e17d5364f25c4b4120be5320b13ac822b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203918
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-31 16:03:44 +00:00
Francesco Renzi
2b544e3f2d tools/gopls: add cmd support for references
This change adds command line support for references.

Example:

$ gopls references ~/tmp/foo/main.go:8:6
$ gopls references ~/tmp/foo/main.go:#53

Updates golang/go#32875

Change-Id: I9a0cf6ae8ba0a5c3d4ffc829b96fe3b42297c192
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202178
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-25 16:51:12 +00:00
Rebecca Stambler
0bb5a05de8 internal/lsp: use the AST to get correct ranges
Fixes golang/go#29150

Change-Id: I0cb8be25f7f40f7f8becedf2e0002c58620c72da
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202542
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-22 16:21:03 +00:00
Heschi Kreinick
eb46839a96 internal/imports: return non-stdlib candidates from GetAllCandidates
Scan most sources, including GOPATH, the module cache, the main module,
and replace targets as appropriate. Use the cached stdlib instead of
scanning GOROOT.

We heavily cache the contents of the module cache, so performance is
decent. But we have to look at all the modules not in the module cache
too to get the right versions of modules (see
(*ModuleResolver).canonicalize), which currently isn't cached at all,
even just for a single run. That ends up being pretty expensive.

The implementation changes are relatively small; add package name
loading to scan(), cache that result, and allow callers to control what
directories are scanned so that it can skip GOROOT.

I also cleared out most of the stdlib from the unimported completion
test and added a simple external completion to it for safety's sake.

Change-Id: Id50fd4703b1126be35a000fe90719e19c3ab84bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/199178
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-21 20:45:15 +00:00
Rebecca Stambler
ed542cd5b2 internal/lsp: turn off go/packages debug logging
Change-Id: I810cff76e6920156f959643f0d16d10b595d9708
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202043
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-10-18 21:25:57 +00:00
Rebecca Stambler
de666e9706 internal/lsp: add a test to make sure we handle bad imports
There was a regression where gopls would not type-check any package with
a bad import. This change fixes the regression and adds a test to make
sure it doesn't happen again.

Change-Id: I3acf0917d46e9444c20135559f057f0ecd20e15b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/201539
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-17 20:52:05 +00:00
Ian Cottrell
7b81e57de2 internal/lsp: run all the tests as sub tests
This allows us to run a single failing test easily when we need.
It also improves the ability to determine which test fails.

Change-Id: I400212d8c4d8c1f97059260add635ce2015990a1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197737
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-27 18:52:00 +00:00
Ian Cottrell
c7cf430b80 internal/lsp: lift the test loops out into the testing framework
The loops are common to all the testing layers, so lift them.
This prepares for more test improvements, without any funcitonal changes.

Change-Id: Ib750c8a7bb4c424a185cb0bd841674a69db1385b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197717
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-27 18:07:07 +00:00
Ian Cottrell
69890759d9 use a golden file for the expected test counts
This makes it much easier to keep them up to date.
It is also less fragile against accidental changes.

Change-Id: If119f8527c0896d210650859960e77f3e0fa5a99
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197505
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-27 05:27:46 +00:00
Paul Jolly
a8d5d34286 internal/lsp: provide option for case sensitive completion
In CL 192137 deep fuzzy matching was enabled by default. We also have
options independent options "deepCompletion" and "fuzzyMatching" to
control this. When fuzzy matching is disabled, case insensitive prefix
matching is used.

Provide an option, "caseSensitiveCompletion", which allows for case
sensitive prefix matching when fuzzy matching is disabled.

Change-Id: I17c8fa310b2ef79e36cc2f7303e98870690b5903
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194757
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-26 16:59:42 +00:00
Muir Manders
5adc67163c internal/lsp: improve completions in *ast.FieldList
Now we always expect type names inside of *ast.FieldList. This expands
the previous func signature logic to also work for *ast.StructType
and *ast.InterfaceType. For example, we will now prefer type names in
cases like:

type myStruct struct { i i<> }

Also, fix a check for anonymous fields to make sure the field is
actually embedded. This fixes cases like this to properly have no
completions:

type myStruct struct { i<> i }

where this will still give type name completions:

type myStruct struct { i<> }

I introduced a new error type source.ErrIsDefinition so source_test.go
could avoid erroring out on tests that make sure definition
identifiers have no completions.

Fixes golang/go#34412.

Change-Id: Ib56cb52af639f2e2b132274d1f04f8074c0d9353
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196560
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-25 22:58:16 +00:00
Muir Manders
2e68ad74ea internal/lsp: fix scope of FuncType completion candidates
Fix objects defined in the function signature to only be completable
inside the function body. For example:

func (dog Dog) bark(d<>) { // Don't complete <> to "dog".
  d<> // Do complete <> to "dog".
}

Change-Id: Ic9a2dc2ce6771212780f2d6af2221a67d203f35f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196559
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-25 19:53:33 +00:00
Rebecca Stambler
9c4a82ab32 internal/lsp: remove duplicated enums
source.DiagnosticSeverity and source.CompletionItemKind are duplicated
and not worth maintaining.

Change-Id: I8d6c8621a227855309c0977da59d8c9fa53617bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197177
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-25 15:30:23 +00:00
Muir Manders
a044388aa5 internal/lsp: add literal completions for basic types
Normally you don't want literal candidates for basic types (e.g.
"int(0)") since you can type the literal value without the type name.
One exception is if you are creating a named basic type that
implements an interface. For example:

http.Handle("/", http.FileServer(<>))

will now give "http.Dir()" as a candidate since http.Dir is a named
string type that implements the required interface http.FileSystem.

Change-Id: Id2470c45e469ea25cd0f9849cfdad19ac0e784bb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/195838
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-25 13:41:13 +00:00
Ian Cottrell
92496828d1 internal/lsp: fix regeneration of golden files
Suggested fixes was totally broken (invalid command) and many others were not in
correct sorted order.
There were lots of golden entries that were no longer used.
The regeneration script itself was broken
The definition tests are skipped, so the entries were not regenerated.

Files must have been hand edited, we probably need to document how to generate
them somewhere.

Change-Id: I1c021aeadd81f08f4572c2124f0c61912a3cd89e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196987
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-25 13:16:59 +00:00
Rebecca Stambler
3af8461759 internal/lsp: associate code action diagnostics with suggested fixes
Instead of relying on the diagnostics cached on the package, use the
diagnostics sent by the code action when computing suggested fixes.

Change-Id: I77f7fd468b34b824c6c5000a51edbe0f8cc6f637
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197097
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-24 23:33:35 +00:00
Rebecca Stambler
c006dc79eb internal/lsp: reorganize completion tests
Our completion tests check for a lot of different behaviors. It may be
easier to develop if we have separate tests for things like deep
completion and completion snippets.

Change-Id: I7f4b0c0e52670f2a6c00247199933fd1ffa0096f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196021
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-24 17:09:08 +00:00