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Commit Graph

210 Commits

Author SHA1 Message Date
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
Michael Matloob
a4a09c7216 internal/lsp: call load in (*session).NewView
Add a source.Scope type that can be used to refer to directories or
files, and modify (*snapshot).load to take source.Scope.
Then call load in NewView.

Change-Id: I8f03c7b271d700b162100d2890d23219ef9578c2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204822
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-07 23:34:59 +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
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
5889748991 internal/lsp: use options hooks to install diff driver
Change-Id: I2f94c2a68d0036a47ccac3fce07cf9f3b784d443
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200558
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-11 16:38:31 +00:00
Rebecca Stambler
57610eddc9 internal/lsp: rework snapshots and cache FileHandles per-snapshot
This change does not complete the work to handle snapshots correctly,
but it does implement the behavior of re-building the snapshot on each
file invalidation.

It also moves to the approach of caching the FileHandles on the snapshot,
rather than in the goFile object, which is now not necessary.

Finally, this change shifts the logic of metadata invalidation into the
content invalidation step, so there is less logic to decide if we should
re-load a package or not.

Change-Id: I18387c385fb070da4db1302bf97035ce6328b5c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197799
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-01 16:26:22 +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
ae58c0ff6b internal/lsp: remove filename print from rename output
This prevents piping back to the file, a common pattern.
Multi file forms should use the unified diff.

Change-Id: I1ea140c59de24feb74a64b0cb41890536f23cd3a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197157
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-25 16:47:12 +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
Rebecca Stambler
035fdb12d3 internal/lsp: remove unnecessary "justOpened" field from goFile
Change-Id: I00a43ba8e2bc3ddc1f270113d8e1a49c801376a3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196986
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-09-24 02:17:48 +00:00
Rebecca Stambler
1081e67f6b internal/lsp: support running go mod tidy as a code action
This changes adds basic support for running `go mod tidy` as a code
action when a user opens a go.mod file. When we have a command
available like `go mod tidy -check`, we will be able to return edits as
part of the codeAction. For now, we execute the command directly.

This change also required a few modifications to our handling of file
kinds so that we could distinguish between a Go file and a go.mod file.

Change-Id: I343079b8886724b67f90a314e45639545a34f21e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196322
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-20 13:08:46 +00:00
Muir Manders
7baacfbe02 internal/lsp: support function literal completions
Now we will offer function literal completions when we know the
expected type is a function. For example:

sort.Slice(someSlice, <>)

will offer the completion "func(...) {}" which if selected will
insert:

func(i, j int) bool {<>}

I opted to use an abbreviated label "func(...) {}" because function
signatures can be quite long/verbose with all the type names in there.

The only interesting challenge is how to handle signatures that don't
name the parameters. For example,

func HandleFunc(pattern string, handler func(ResponseWriter, *Request)) {

does not name the "ResponseWriter" and "Request" parameters. I went
with a minimal effort approach where we try abbreviating the type
names, so the literal completion item for "handler" would look like:

func(<rw> ResponseWriter, <r> *Request) {<>}

where <> denote placeholders. The user can tab through quickly if they
like the abbreviations, otherwise they can rename them.

For unnamed types or if the abbreviation would duplicate a previous
abbreviation, we fall back to "_" as the parameter name. The user will
have to rename the parameter before they can use it.

One side effect of this is that we cannot support function literal
completions with unnamed parameters unless the user has enabled
snippet placeholders.

Change-Id: Ic0ec81e85cd8de79bff73314e80e722f10f8c84c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193699
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-18 23:49:17 +00:00
Muir Manders
3d643c64ae internal/lsp: add literal completion candidates
Add support for literal completion candidates such as "[]int{}" or
"make([]int, 0)". We support both named and unnamed types. I used the
existing type matching logic, so, for example, if the expected type is
an interface, we will suggest literal candidates that implement the
interface.

The literal candidates have a lower score than normal matching
candidates, so they shouldn't be disruptive in cases where you don't
want a literal candidate.

This commit adds support for slice, array, struct, map, and channel
literal candidates since they are pretty similar. Functions will be
supported in a subsequent commit.

I also added support for setting a snippet's final tab stop. This is
useful if you want the cursor to end up somewhere other than the
character after the snippet.

Change-Id: Id3b74260fff4d61703989b422267021b00cec005
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193698
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-18 17:13:17 +00:00
Rebecca Stambler
11affa06ff internal/lsp: show errors when the user is in the wrong directory
If we encounter `go list` errors when loading a user's package, we
should try to see if they've encountered any of our common error cases.
They are: 1) a user has GO111MODULE=off, but is outside of their GOPATH,
and 2) a user is in module mode but doesn't have a go.mod file.

Fortunately, go/packages does a great job handling edge cases so gopls
will work well for most of them. The main issue will be unresolved
imports. These show up in DepErrors in `go list`, so go/packages doesn't
propagate them through to the list of errors. This will require changes
to go/packages.

Updates golang/go#31668

Change-Id: Ibd5253b33b38caffeaad54a403c74c0b861fcc14
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194018
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-17 21:41:55 +00:00
Rebecca Stambler
c52e9e2de4 internal/lsp: fix vet errors
Change-Id: I2435140e7b2b419df704e994ec45ad75932421b1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/195877
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-17 16:21:16 +00:00
Muir Manders
5999de1043 internal/lsp: tighten up completion budget check
Tweak a couple things to improve how we reduce our search scope based
on remaining time budget:

- Check our budget on the first candidate rather than waiting for the
  1000th candidate. If type checking is slow you can be out of budget
  before you even begin.
- Reduce our budget check interval from 1000 candidates to 100
  candidates. This just helps us adjust our search scope faster.

The first tweak required me to raise the completion budget for tests
because 100ms is not always enough. I moved the budget into the
completion options so that tests can raise it.

Change-Id: I1aa7909d7baf9c998bc830c960dc579eb33db12a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/195419
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-09-17 02:32:08 +00:00
Rebecca Stambler
5edc6aefed internal/lsp: reduce usage of column mapper
A mapper is always uniquely tied to a file at a specific version, so
just build it when we get a new *ast.File. We build the mapper using the
*token.File associated with the particular *ast.File, which is why there
is one per ParseGoHandle instead of FileHandle.

Change-Id: Ida40981ef91f6133cdd07e9793337fcd67510fba
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194517
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-16 22:00:07 +00:00
Rebecca Stambler
c7d52e45e2 internal/lsp: use the view options, not the session options
Previous changes to the config mechanism made the config options
per-view, not per-session. We should now make sure to obey config
changes per-view. This does not fix the configuration handling for
"watchChangedFile" however. This should be done in a future CL.

Change-Id: I73f6236386c36d2587fdb9c0601670833a4366c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194818
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-09-11 22:59:40 +00:00
Rebecca Stambler
b13fa046aa internal/lsp: merge session and view options into one
This fixes the issue of config options not being applied.
Also, handle config errors and deprecation by showing a message to the
user.

Change-Id: I850d5303a7a1e301c97324060a87929710ee6700
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194682
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-11 19:36:49 +00:00
Rebecca Stambler
ec76318e79 internal/lsp: treat completion documentation errors as actual errors
Also, handle *ast.StarExpr in the identifier code. This fixes a specific
case with deep completions and documentation.

Change-Id: I630ae4e8f1c123ba1fdea85e6862ae93396e2cd4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194564
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-10 23:05:03 +00:00
Ian Cottrell
3d22a3cfff internal/lsp: only build a view when we have its configuration
We now wait to build views until we have the options for that view,
and pass the options in to the view constructor.
The environment and build flags are now part of the view options.

Change-Id: I303c8ba1eefd01b66962ba9cadb4847d3d2e1d3b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194278
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-10 14:40:41 +00:00
Muir Manders
dd2b5c81c5 internal/lsp: simplify snippet config/generation
I moved the "usePlaceholders" config field on to CompletionOptions.
This way the completion code generates a single snippet with a little
conditional logic based on the "WantPlaceholders" option instead of
juggling the generation of two almost identical "plain" and
"placeholder" snippets at the same time. It also reduces the work done
generating completion candidates a little.

I also made a minor tweak to the snippet builder where empty
placeholders are now always represented as e.g "${1:}" instead of
"${1}" or "${1:}", depending on if you passed a callback to
WritePlaceholder() or not.

Change-Id: Ib84cc0cd729a11b9e13ad3ac4b6fd2d82460acd5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193697
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-09-10 04:45:52 +00:00
Muir Manders
5797d2e298 internal/lsp: add more flexible completion tests
Add a new @completePartial note that does not require you to specify
the full list of completions. This gets rid of a lot of noise when you
just want to test the relative order of some completion candidates but
don't care about all the other candidates in scope.

I changed one existing test to use @completePartial as an example.

Change-Id: I56005405477e562803f094c0cac05ef2b854ad1a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192657
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-10 04:40:04 +00:00
Michael Matloob
75be6cdcda internal/lsp: enable suggested fixes by default
Remove the wantSuggestedFixes flag, and run the flagged code
by default.

Add test cases for suggested fixes.
Generate a suggested fix to the assign analysis that suggests removing redundant assignments.
Fix the propagation of suggested fixes (using rstambler's code).

Change-Id: I342c8e0b75790518f228b00ebd2979d24338be3b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193265
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-09 19:40:07 +00:00
pjw
fef9eaa9e4 x/tools/gopls: convert to the august, 2019 version of the LSP protocol
The latest version of the LSP protocol introduces a number of changes.
It is now possible to indicate partial results and progress. request.ts
had to construct some new types (at the end of tsclient.go and tsserver,go)
to avoid using a struct for a formal parameter type.  Also,
instead of using the same type for many RPCs, most RPCs now have their own
types.

Change-Id: I095a3e872f42a9f851c01ca4e3c6ac6e32446042
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194177
Run-TryBot: Peter Weinberger <pjw@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-08 13:59:31 +00:00
Rebecca Stambler
2ca718005c internal/lsp: use protocol.TextEdits in suggested fixes
Change-Id: I8b454dd8c59839468ecfcb19b7edfa659e386b57
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193957
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-07 02:01:28 +00:00
Rebecca Stambler
8159a2d3d6 internal/lsp: use protocol.Position for textDocument/prepareRename
Change-Id: Ic896321dff17e788d46dae2efc12ecbf2b2f53dd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193723
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-06 18:55:03 +00:00
Rebecca Stambler
04840ef8f3 internal/lsp: switch to using protocol positions for document symbols
Change-Id: I8e550b753328b8e536bff3bb61b4ff4486fcd4f9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193722
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-06 18:11:17 +00:00
Rebecca Stambler
bb4ee55d3d internal/lsp: change to protocol.TextEdit for formatting
The next in the sequence of CLs to convert to using protocol positions.

Change-Id: Ib3421bfc73af1b546b60c328ca66528cb9031e19
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193719
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-06 17:54:09 +00:00
Ian Cottrell
f1f4a3381f internal/lsp: move configuration options to structs
This cl is the first in a set that change the configuration behaviour.
This one should have no behaviour differences, but makes a lot of preparatory changes.
The same options are set to the same values in the same places.
The options are now stored on the Session instead of the Server
The View supports options, but does not have any yet.

Change-Id: Ie966cceca6878861686a1766d63bb8a78021259b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193726
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-06 17:30:54 +00:00
Rebecca Stambler
adb45749da internal/lsp: turn on completion documentation by default
This feature has been in an experimental state for a long enough time
that I think we can enable it by default at master.

Change-Id: I9bbb8b41377719f0e97f608f6e5163a883a176b3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192259
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-05 03:53:08 +00:00
Rebecca Stambler
df305b82d2 internal/lsp: fix declarations in references
Fixes golang/go#34087

Change-Id: I854c03cd124fe783f838dc53ee76cec5fffa563b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193379
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-05 03:51:44 +00:00
Suzy Mueller
be0da057c5 internal/lsp: return only multiline ranges when lineFoldingOnly
If the client registers with foldingRange.lineFoldingOnly = true, only
return folding ranges that span multiple lines. Do this as they are
computed, so that if other filtering is applied later, we do not include
ranges that would go unused by the client anyway.

Change-Id: I27ea24428d25f180e26892de0f6d16c211225bf7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192477
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-03 16:36:17 +00:00
Suzy Mueller
afe7f8212f internal/lsp: add tests for nested folding ranges
FoldingRanges may be nested. Test nested folding ranges by separating
out the folding ranges by nested level and checking each level.

Change-Id: I12c72daa3e6c6b9d4959209b3a41b27e2b59866f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192398
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-03 02:50:54 +00:00
Bryan C. Mills
311ec0312e all: skip more memory-intensive tests on linux-arm
Updates golang/go#32834

Change-Id: I9844dc09d9a6eb2e79a0b28a1e69ed018bfa1bff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192578
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-08-30 17:05:41 +00:00
Muir Manders
6afc7fcab5 internal/lsp: enable deep completion and fuzzy matching by default
Invert "useDeepCompletions" config flag to "disableDeepCompletion" and
separate out "disableFuzzyMatching" which reverts to the previous
prefix matching behavior.

I separated fuzzy matching tests out to a separate file so they aren't
entangled with deep completion tests. In coming up with representative
test cases I found a couple issues which I fixed:

- We were treating a fuzzy matcher score of 0 as no match, but the
  matcher returns 0 for candidates that match but have no bonuses. I
  changed the matcher interface so that a score of 0 counts as a
  match. For example, this was preventing a pattern of "o" from
  matching "foo".
- When we lower a candidate's score based on its depth, we were
  subtracting a static multiplier which could result in the score
  going negative. A negative score messes up future score weighting
  because multiplying it by a value in the range [0, 1) makes it
  bigger instead of smaller. Fix by scaling a candidate's score based
  on its depth rather than subtracting a constant factor.

Updates golang/go#32754

Change-Id: Ie6f9111f1696b0d067d08f7eed7b0a338ad9cd67
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192137
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-08-30 16:47:54 +00:00
Bryan C. Mills
5d7988b71d go/packages,internal/lsp: skip memory-intensive tests on the linux-arm builder
Updates golang/go#32834
Updates golang/go#30309

Change-Id: I75edb84776216523d00fadfb2e2d94ae08533c03
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192336
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2019-08-29 20:36:57 +00:00
Suzy Mueller
c9403068c1 internal/lsp: add prepare rename support
Prepare rename gets the range of the identifier to rename. Returns an
error when there is no identifier to rename.

Change-Id: I5e5865bc9ff97e6a95ac4f0c48edddcfd0f9ed67
Reviewed-on: https://go-review.googlesource.com/c/tools/+/191170
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-08-29 20:19:46 +00:00
Suzy Mueller
114c575556 internal/lsp: add foldingRange support
Support textDocument/foldingRange request. Provide folding ranges for
multiline comment blocks, declarations, block statements, field lists,
case clauses, and call expressions.

Fixes golang/go#32987

Change-Id: I9c76e850ffa0e5bb65bee273d8ee40577c342f92
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192257
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-08-29 20:17:30 +00:00
Rebecca Stambler
42f498d34c internal/lsp: use protocol.Ranges for source.Identifier
Change-Id: I42cb957e3c1676e2ec7e3f50dd5e3613f3dd9555
Reviewed-on: https://go-review.googlesource.com/c/tools/+/191880
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-29 05:14:58 +00:00
Ian Cottrell
85edb9ef32 internal/lsp: abstract the diff library so it can be substituted
this moves the actual diff algorithm into a different package and then provides hooks so it can be easily replaced with an alternate algorithm.

Change-Id: Ia0359f58878493599ea0e0fda8920f21100e16f1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190898
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-08-20 03:37:07 +00:00
Rebecca Stambler
6889da9d54 internal/lsp: separate out getMapper function
This is a super minimal change that will simplify the diffs for when I
actually delete the getMapper function.

Change-Id: I16984b344c87b3645fd451668b6ea747c5be12ab
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190557
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-16 20:05:58 +00:00
Suzy Mueller
caa95bb40b internal/lsp: add completions of unimported std lib pkgs
Unimported packages may be suggested as completion items. Since these
are not yet imported, they should be ranked lower than other candidates.

They also require an additional import statement to be valid, which is
provided as an AdditionalTextEdit.

Adding this import does not use astutil.AddNamedImport, to avoid
editing the current ast and work even if there are errors. Additionally,
it can be hard to determine what changes need to be made to the source
document from the ast, as astutil.AddNamedImport includes a merging
pass. Instead, the completion item simply adds another import
declaration.

Change-Id: Icbde226d843bd49ee3713cafcbd5299d51530695
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190338
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-08-16 18:32:40 +00:00
Rebecca Stambler
a857023c21 internal/lsp: use protocol.Range for diagnostics instead of span.Span
This is the first in a series of many changes that will change the API
of the source package to use different types for positions. Using
token.Pos is particularly fragile, since the pos has to refer to the
specific *ast.File from which it was derived.

Change-Id: I70c9b806f7dd45b2e229954ebdcdd86e2cf3bbbb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190340
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-16 17:06:24 +00:00
Ian Cottrell
5b08f89bfc internal/telemetry: clean up the exporter api
this shuffles things so there a single exporter API rather than an observer
It also removes most of the globals.
per telemetry type.

Change-Id: Iaa82abe2ded1fff9df8e067ed4a55bcbd9d9591f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190405
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-08-15 23:56:12 +00:00
Ian Cottrell
156eb2ae29 internal/lsp: split the telemetry library out
This is a straight move of some code with no changes.
It splits the part of the telemetry code that will become a standalone library from the bit that belongs in the lsp.

Change-Id: Icedb6bf1f3711da9251450531729984df6df7787
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190403
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-08-15 21:28:02 +00:00
Muir Manders
41f3357785 internal/lsp: don't deep complete struct field names
When it is certain we are completing a struct field name, we don't
want deep completions. The only possible completions are the remaining
field names.

I also silenced the log spam in tests by disabling the go/packages
logger and the lsp logger.

Fixes golang/go#33614

Change-Id: Icec8d92112b1674fa7a6a21145ab710d054919b4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190097
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-08-13 21:38:55 +00:00
Rebecca Stambler
89a01ca1a8 internal/lsp: support an experimental structured hover format
Updates golang/go#33352

Change-Id: Ibf18e2529c9ba8c94c66942ea6f2c27f047ed285
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189977
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-12 21:55:50 +00:00
Rebecca Stambler
f07d81a593 internal/lsp: fix documentation for completion items
This change fixes documentation for completion items by using cached
package and AST information to derive the documentation. We also add
testing for documentation in completion items.

Change-Id: I911fb80f5cef88640fc06a9fe474e5da403657e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189237
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-12 17:13:29 +00:00
Rebecca Stambler
cae9aa5434 internal/lsp: show "do not edit" message when user opens generated file
This is probably a better approach than showing an extra diagnostic,
since a user cannot dismiss a diagnostic.

Fixes golang/go#33397

Change-Id: I92b9a00f51a463673993793abfd4cfb99ce69a91
Reviewed-on: https://go-review.googlesource.com/c/tools/+/188766
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-07 16:44:42 +00:00
Rebecca Stambler
1dcc99b65a internal/lsp: do not show errors for code actions on go.mod files
This change keys the supported code actions map by file kind, so that we
can extend it more easily for go.mod files.

Change-Id: Ic28f91bd517700cf070281b1c4d4ded14a702790
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189039
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-06 19:11:59 +00:00
Ian Cottrell
7caf8110c9 internal/lsp: purge the remains of the xlog system now it is not used
Change-Id: Iad8f037de88c2657734b8a1b5c73fc708d3b5924
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186198
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-18 19:11:56 +00:00
Suzy Mueller
a0f5e6c5c2 internal/lsp: sort rename results
We recommend that gopls integrators apply the []TextEdit responses in
reverse order to get a correct resulting document. This strategy works
when the response is already sorted. Have gopls return sorted []TextEdit
for each file.

Fixes golang/go#33123

Change-Id: Ib570881c9623695d2ae3194fa8a97b0a681a3250
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186258
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-15 22:13:26 +00:00
Ian Cottrell
c8ecc7589e interal/lsp: add context based version of xlog
this is a temporary migration solution

Change-Id: Idb6542298dff85a0926aae761f6317ea155293db
Reviewed-on: https://go-review.googlesource.com/c/tools/+/185987
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-15 03:44:47 +00:00
litleleprikon
8308f91286 internal/lsp: add links search in comments and string literals
Add to "textDocument/documentLink" request handler ability to search
URLs in string literals and comments.

Fixes golang/go#32339

Change-Id: Ic67ad7bd94feba0bb67ab090a8903e30b2dff996
Reviewed-on: https://go-review.googlesource.com/c/tools/+/185219
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-12 18:53:41 +00:00
Ian Cottrell
5f9351755f internal/lsp: stop making background contexts everywhere
For all uses inside the lsp we use the detatch logic instead
For tests we build it in the test harness instead
This is in preparation for things on the context becomming important

Change-Id: I7e6910e0d3581b82abbeeb09f9c22a99efb73142
Reviewed-on: https://go-review.googlesource.com/c/tools/+/185677
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-11 16:38:52 +00:00
Suzy Mueller
7b25e351ac internal/lsp: rename identifiers in test packages
Support renaming of identifiers in test packages. The packages for
all of the references must be checked and the changes need to be
deduped, since both a package and its test package contain some of the
same files.

Fixes golang/go#32974

Change-Id: Ie51e19716faae77ce7e5254eeb3956faa42c2a09
Reviewed-on: https://go-review.googlesource.com/c/tools/+/185277
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-09 21:17:00 +00:00
Suzy Mueller
c93f28baaa internal/lsp: check no errs for assignability rename
The satisfy package has a precondition for Finder.Find that requires
that the package has no type errors. If this is a check that we would
perform, give an error and do not rename.

Fixes golang/go#32882

Change-Id: Id44b451bf86ff883fd78a6306f2b2565ad3bdeb9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184857
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-08 20:09:55 +00:00
Paul Jolly
60762fc531 internal/lsp: fix test failure introduced in CL 185058
Failed to properly check the try-bot result in CL 185058. Hence didn't
spot the LSP tests that also verify offset behaviour. This CL fixes
those tests to align the LSP tests with the change introduced in CL
185058.

Change-Id: Ia81ab6db7a2c3a4729d8ef73205b6071af270b00
Reviewed-on: https://go-review.googlesource.com/c/tools/+/185220
Run-TryBot: Paul Jolly <paul@myitcv.org.uk>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-07-08 15:18:58 +00:00
Rebecca Stambler
1c78e26233 internal/lsp: add configuration for hover levels
Instead of defaulting to a one sentence synopsis for documentation on
hover, allow the user to configure the amount of documentation they want
to see. Right now, the options are none, some (using go/doc.Synopsis),
or all. We should add a 4th, single-line, mode, which will allow clients
like vim-go to stop stripping off documentation on hover.

Updates golang/go#32561

Change-Id: I529242da84b794636984d5ef2918b7252886f0ef
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184797
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-07-03 17:17:32 +00:00
Rebecca Stambler
7e72c71c50 internal/lsp: hide signature help in function literals
Often anonymous functions can be passed as arguments to a function. In
these cases, it can be annoying for a user to see signature help for the
entire duration of their writing this function. This change detects if
the user is typing in a function literal and disables signature help in
that case.

Fixes golang/go#31633

Change-Id: I7166910739b6e1ec0da2ec852336136b81d13be0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184260
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Suzy Mueller <suzmue@golang.org>
2019-07-02 15:22:45 +00:00
Suzy Mueller
58bb5bbe30 internal/lsp: find references in test packages
Find references to identifiers in both a package and its test package.

Change-Id: I9d9da4aa37c36c448336aed044df79cfd1c903f1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/183990
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-07-01 19:17:42 +00:00
Rebecca Stambler
e750c417fb internal/lsp: handle the context.only parameter for code actions
This change refactors code actions to handle the Context.Only parameter,
which indicates which code actions a language server should execute.

Change-Id: Iddfccbbeba3a53fde2aa8df844434f2ab9d01666
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184158
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-07-01 18:53:50 +00:00
Muir Manders
4298585011 internal/lsp: provide deep completion candidates
Deep completion refers to searching through an object's fields and
methods for more completion candidates. For example:

func wantsInt(int) { }
var s struct { i int }
wantsInt(<>)

Will now give a candidate for "s.i" since its type matches the
expected type.

We limit to three deep completion results. In some cases there are
many useless deep completion matches. Showing too many options defeats
the purpose of "smart" completions. We also lower a completion item's
score according to its depth so that we favor shallower options. For
now we do not continue searching past function calls to limit our
search scope. In other words, we are not able to suggest results with
any chained fields/methods after the first method call.

Deep completions are behind the "useDeepCompletions" LSP config flag
for now.

Change-Id: I1b888c82e5c4b882f9718177ce07811e2bccbf22
GitHub-Last-Rev: 26522363730036e0b382a7bcd10aa1ed825f6866
GitHub-Pull-Request: golang/tools#100
Reviewed-on: https://go-review.googlesource.com/c/tools/+/177622
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-06-27 18:58:03 +00:00
Rebecca Stambler
3cbd95df51 internal/lsp: support a file belonging to multiple packages
This change adds supports for a package belonging to multiple files.
It requires additional packages.Loads for all of the packages to which a
file belongs (for example, if a non-test file also belongs to a package's
test variant).

For now, we re-run go/packages.Load for each file we open, regardless of
whether or not we already know about it.

This solves the issue of packages randomly belonging to a test or not.
Follow-up work needs to be done to support multiple packages in
references, rename, and diagnostics.

Fixes golang/go#32791
Fixes golang/go#30100

Change-Id: I0a5870a05825fc16cc46d405ef50c775094b0fbb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/183628
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-26 17:56:19 +00:00
Rebecca Stambler
252024b829 internal/lsp: separate refactorings out of memoization CL
This change just separates minor changes made along the course of the
memoization CL out into their own change. This will clean up the diffs
in the memoization CL.

Change-Id: I7d59e05ba6472af5f1bf516b1e5b879a5815b9a5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/183250
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-25 16:04:30 +00:00
Suzy Mueller
4adf7a708c internal/lsp: add identifier renaming
This change provides support to rename identifiers within a single
package.

The renaming is performed by finding all references to an identifier,
and then creating text edits to replace the existing text with the
new identifier.

Editing an import spec is not supported.

Fixes #27571

Change-Id: I0881b65a1b3c72d7c53d7d6ab1ea386160dc00fb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182585
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-19 21:54:42 +00:00
Ian Cottrell
e88138204b internal/span: change URI.Filename so it just returns the filename
We panic if the uri was not a valid file uri instead
They always are a valid file URI, and we would fail miserably to cope if they were
not anyway, and there are lots of places where we need to be able to get the filename
and don't want to cope with an error that cannot occur.
If we ever have not file uri's, you will have to check if it is a file before calling
.Filename, which seems reasonable anyway.

Change-Id: Ifb26a165bd43c2d310378314550b5749b09e2ebd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/181017
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-10 21:39:43 +00:00
Rebecca Stambler
fe937a7521 internal/lsp: allow fine-grained control over vet checks
This change adds an "experimentalDisabledAnalyses" configuration
to the "gopls" configuration. A user can specify a list of excluded
analyses by analyzer name.

Fixes golang/go#31717

Change-Id: I4b162fcd61ecfcef5c926bd0e96f182748a7721d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179920
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-10 19:43:59 +00:00
Suzy Mueller
bca362e842 internal/lsp: add find all references
This change implements the find all references feature by finding all of
the uses and definitions of the identifier within the current package.

Testing for references is done using "refs" in the testdata files and
marking the references in the package.

Change-Id: Ieb44b68608e940df5f65c3052eb9ec974f6fae6c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/181122
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-10 19:06:22 +00:00
Rebecca Stambler
68211a626c internal/lsp: fix some issues with trimming ASTs
This change correctly invalidates the cache when we
have to go from a trimmed to untrimmed AST.

The "ignoreFuncBodies" behavior is still disabled due to a racy test.

Updates golang/go#30309

Change-Id: I6b89d1d2140d77517616cb3956721a157c25ab71
Reviewed-on: https://go-review.googlesource.com/c/tools/+/180857
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-07 20:08:10 +00:00
Rebecca Stambler
8aaa1484dc internal/lsp: add some basic tests for imports
This change adds a few simple tests for the goimports behavior of gopls.
There are still missing cases for non-standard library, but this is a
good start.

Change-Id: I2f9bc2cc876dcabf81413384b83fa3508517adf0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179918
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-06-03 23:13:51 +00:00
Rebecca Stambler
d850aa06e8 internal/lsp: fix setting overlays in tests
This change fixes the test failure that has appeared in a few TryBot
runs.

Change-Id: If583555250d63b7f446ec7d8eb09810b842633ae
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179437
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-29 19:11:38 +00:00
Rebecca Stambler
3d17549cdc internal/lsp: add modfile, sumfile structs, require Go files for diagnostics
This change adds a stub modFile struct for use in the future. It also
moves the singleDiagnostic function out into the lsp package, so that
the source package does not make decisions about what to show to the
user as a diagnostic.

Fixes golang/go#32221

Change-Id: I577c66fcd3c1daadaa221b52ff36bfa0fe07fb53
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178681
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-24 21:02:28 +00:00
Ian Cottrell
7927dbab1b internal/lsp: build the packages config on demand from proper configuration
This moves the fileset down to the base cache, the overlays down to the session
and stores the environment on the view.
packages.Config is no longer part of any public API, and the config is build on
demand by combining all the layers of cache.
Also added some documentation to the main source pacakge interfaces.

Change-Id: I058092ad2275d433864d1f58576fc55e194607a6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178017
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-21 17:12:43 +00:00
Evan Digby
d88f79806b internal/lsp: fix swallowed package errors
If a package has an error that makes it completely unparseable, such as containing a .go file with no "package" statement, the error was previously unreported. Such errors would manifest as other errors.

Fixes golang/go#31712

Change-Id: I11b8d0e2e4d64b03fbcb4c35e7f0b02fccc83fad
GitHub-Last-Rev: 1581cbe36c269dd964f0b9226dbd63b1650c2a5b
GitHub-Pull-Request: golang/tools#102
Reviewed-on: https://go-review.googlesource.com/c/tools/+/177605
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-17 18:33:31 +00:00
Rebecca Stambler
bffc5affc6 internal/lsp: support definitions and hover for builtins
This change adds support for definitions and hover for builtin types and
functions. It also includes some small (non-logic) changes to the import
spec definition function.

Additionally, there are some resulting changes in diagnostics to ignore
the builtin file but also use it for definitions (Ian, you were right
with your comment on my earlier review...).

Fixes golang/go#31696

Change-Id: I52d43d010a5ca8359b539c33e40782877eb730d0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/177517
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-17 00:35:10 +00:00
Ian Cottrell
b9584148ef internal/lsp: add structured layers to the cache
This is primarily to separate the levels because they have different cache
lifetimes and sharability.
This will allow us to share results between views and even between servers.

Change-Id: I280ca19d17a6ea8a15e48637d4445e2b6cf04769
Reviewed-on: https://go-review.googlesource.com/c/tools/+/177518
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-16 21:30:38 +00:00
Ian Cottrell
4f9510c6a1 internal/lsp: prepare for non go files
This abstracts out the concrete file type so that we can support non go files.

Change-Id: I7447daa2ce076ec2867de9e59a0dedfe1a0553f5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/175217
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-15 23:59:46 +00:00
Rebecca Stambler
473d3dc1d7 internal/lsp: handle additional snippet cases
This change handles the case when a function that has already been
written out is being completed.

Change-Id: I0c4e9ec9bb5a8428526f00a4e62e020bcc30f0bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/176923
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-15 17:48:15 +00:00
Ian Cottrell
ce09bef8aa internal/lsp: reduce the api surface of the cache package
The cache now exposes only one symbol, NewView
This is preparing the cache for a re-write

Change-Id: I411c2cd7a7edc2e7c774218c6786f9fd4fcc53cb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/176924
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-15 16:36:46 +00:00
Rebecca Stambler
707862fa78 internal/lsp: use builtin package for signature help
This change uses the builtin package to derive the signature help for
builtin functions.

Updates golang/go#31696

Change-Id: I458b3a89bdf143e7018e8be7cb6a5e8c068a47c2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/176922
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-15 13:46:40 +00:00
Ian Cottrell
80b1e8742c internal/lsp: support dynamic workspace folder changes
This also required us to change the way we map files to a view, as it may change
over time.

Fixes golang/go#31635

Change-Id: Ic82467a1185717081487389f4c25ad69df1af290
Reviewed-on: https://go-review.googlesource.com/c/tools/+/175477
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-10 21:22:50 +00:00
Ian Cottrell
490d13020f internal/lsp: switch golden files to use txtar
I was about to add some more tests and it caused a huge number of golden files,
which was hard to deal with. Now all the golden files are packed into a single
.golden archive in the txtar format.
I also changed the tagging key for hover results to use the marker name rather
than the line and column, as it makes it more stable against test data changes.

Change-Id: Iaa1f54ab55a41d380db67b9f6f928fa7a52d9a5e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/174877
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-08 14:59:27 +00:00
Ian Cottrell
3b6f9c0030 internal/lsp: add document link handling for import paths to godoc
Change-Id: Ib2eef50047dfcc64110c264e77d648f959613b88
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173698
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-03 18:56:57 +00:00
Ian Cottrell
2d28432af7 internal/lsp: first pass at some hover tests
This uses golden files to hold the hover text as they are no more fragile than
hard coding the text in the tests, and much easier to update.
We need a lot more tests, and ones with actual comments, but this is a start and
at least adds the machienery it would take.

Change-Id: Ia2f79257642759e4c2f972d4037f258134e0fb33
Reviewed-on: https://go-review.googlesource.com/c/tools/+/174380
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-30 19:42:29 +00:00
Muir Manders
c6e1543aba internal/lsp: add struct literal field snippets
Now when you accept a struct literal field name completion, you will
get a snippet that includes the colon, a tab stop, and a comma if
the literal is multi-line. If you have "gopls.usePlaceholders"
enabled, you will get a placeholder with the field's type as well.

I pushed snippet generation into the "source" package so ast and type
info is available. This allows for smarter, more context aware snippet
generation. For example, this let me fix an issue with the function
snippets where "foo<>()" was completing to "foo(<>)()". Now we don't
add the function call snippet if the position is already in a CallExpr.

I also added a new "Insert" field to CompletionItem to store the plain
object name. This way, we don't have to undo label decorations when
generating the insert text for the completion response. I also changed
"filterText" to use this "Insert" field since you don't want the
filter text to include the extra label decorations.

Fixes golang/go#31556

Change-Id: I75266b2a4c0fe4036c44b315582f51738e464a39
GitHub-Last-Rev: 1ec28b2395c7bbe748940befe8c38579f5d75f61
GitHub-Pull-Request: golang/tools#89
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173577
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-29 17:59:36 +00:00
Rebecca Stambler
550556f78a internal/lsp/source: refactor completion
This change separates the completion formatting functions from the
completion logic. It also simplifies the completion logic by necessary
values per-request into a struct that is used throughout.

Change-Id: Ieb6b09b7076ecf89c8b76ec12c1f1c9b10618cfe
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173779
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-28 02:47:24 +00:00
Muir Manders
49ba83114e internal/lsp: improve composite literal completion
When the value of a composite literal key/value pair was unparsable,
you were getting completions for the composite literal keys instead of
values. For example "struct { foo int }{foo: []<>" was completing to
the field name "foo". This was because the leaf ast.Node at the cursor
was the composite literal itself, and our go-back-one-character logic
was not happening because the preceding character's node
was *ast.BadExpr, not *ast.Ident. Fix by always generating the ast
path for the character before the cursor's position. I couldn't find
any cases where this broke completion.

I also added expected type detection for the following composite
literal cases:
- array/slice literals
- struct literals (both implicit and explicit field names)
- map keys and values

Fixes golang/go#29153

Change-Id: If8cf678cbd743a970f52893fcf4a9b83ea06d7e9
GitHub-Last-Rev: f385705cc05eb98132e20561451dbb8c39b68519
GitHub-Pull-Request: golang/tools#86
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173099
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-23 22:28:03 +00:00
Ian Cottrell
18110c573c internal/lsp: delay the running of gofmt until the test is running
Change-Id: I222c83313a6366367fbeb7ce7d08058968d3a08e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173340
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-23 21:55:36 +00:00
Ian Cottrell
7f54bd5c70 internal/lsp: extract the common test logic
Change-Id: I0a3e8a2837cdeefb3dbbe7b86ed75a32b321797e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172778
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-22 16:50:02 +00:00
Muir Manders
aa740d4807 internal/lsp: handle embedded struct pointer definitions
When jumping to definition of an embedded struct pointer, be sure to
unwrap the pointer type so you properly jump to the pointee type.

Also, fix jumping to definition of an embedded struct inside an
anonymous struct inside a struct. The embedded struct detection was
continuing too far and thinking it wasn't an embedded struct when it
saw the anonymous struct.

Fixes golang/go#31451

Change-Id: I96017764270712a2ae02a85306605495075d12e7
GitHub-Last-Rev: 9997f60855ebe37bcca2fecc1ba2a7b871f393d4
GitHub-Pull-Request: golang/tools#83
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172583
Run-TryBot: Paul Jolly <paul@myitcv.org.uk>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-20 18:18:00 +00:00
Ian Cottrell
afc68fbc60 internal/lsp: a cleaner way of doing overlays
Change-Id: I3ee053cfc4b63f54b9bf43d0ce6a2bae713e3a0d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172638
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-17 21:35:05 +00:00
Muir Manders
7e40e1726e internal/lsp: improve signatureHelp in various cases
- show signature for function calls whose function expression is not
  an object (e.g. the second call in foo()()). since the function name
  is not available, we use the generic "func"
- only provide signature help when the position is on or within the
  call expression parens. this is consistent with the one other lsp
  server i tried (java). this improves the gopls experience in emacs
  where lsp-mode is constantly calling "hover" and
  "signatureHelp" ("hover" should be preferred unless you are inside
  the function params list)
- use the entire signature type string as the label since that includes
  the return values, which are useful to see
- don't qualify the function name with its package. it looks funny to
  see "bytes.Cap()" as the help when you are in a call
  to (*bytes.Buffer).Cap(). it could be useful to include invocant
  type info, but leave it out for now since signature help is meant to
  focus on the function parameters.
- don't turn variadic args "foo ...int" into "foo []int" for the
  parameter information (i.e. maintain it as "foo ...int")
- when determining active parameter, count the space before a
  parameter name as being part of that parameter (e.g. the space
  before "b" in "func(a int, b int)")
- handle variadic params when determining the active param (i.e.
  highlight "foo(a int, *b ...string*)" on signature help for final
  param in `foo(123, "a", "b", "c")`
- don't generate an extra space in formatParams() for unnamed
  arguments

I also tweaked the signatureHelp server log message to include the
error message itself, and populated the server's logger in lsp_test.go
to aid in development.

Fixes golang/go#31448

Change-Id: Iefe0e1e3c531d17197c0fa997b949174475a276c
GitHub-Last-Rev: 5c0b8ebd87a8c05d5d8f519ea096f94e89c77e2c
GitHub-Pull-Request: golang/tools#82
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172439
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-17 18:10:49 +00:00
Ian Cottrell
7b3e515a8c internal/lsp: switch completion item tests to using the enum strings
Also change the enum values to match the prior string conversion routine.

Change-Id: I23ac6a72c8e116c5ee05e9324356481e519781e9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172410
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-17 17:57:43 +00:00