Commit Graph

5912 Commits

Author SHA1 Message Date
Rob Findley 00129ffdb6 internal/lsp/lsprpc: update binder tests to handle forwarding
Update the new binder tests to run both with a standalone server, and
with a forwarding chain.

Make a few superficial improvements along the way as well.

Change-Id: Icd197698093a3f6149ab58171806b2388ed75b7f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/321134
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Ian Cottrell <iancottrell@google.com>
2021-06-25 19:21:47 +00:00
Rob Findley fe2294a1b8 internal/jsonrpc2_v2: initialize async before binding
The lsprpc package needs to wait on the newly bound connection to
perform some tear-down, so it must be safe to call conn.Wait from Bind.

Achieve this by switching async from an init pattern to a constructor.
This means moving async fields to pointers, but since they weren't safe
to use prior to initialization anyway this feels correct.

Change-Id: I4f93980915e0b568fbf2db3cd7d062adf06e4b99
Reviewed-on: https://go-review.googlesource.com/c/tools/+/330929
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Ian Cottrell <iancottrell@google.com>
2021-06-25 19:21:17 +00:00
Rob Findley 636017e131 internal/lsp/cache: fix missing pkg error on Windows
Use filepath.SplitList rather than always splitting GOPATH on ':'.

Fixes golang/go#46805

Change-Id: I27324afba96b550f75cc272b6c7f701b28825d39
Reviewed-on: https://go-review.googlesource.com/c/tools/+/328969
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2021-06-25 15:37:24 +00:00
Jean de Klerk 48cad5ecb1 tools/gopls: small fixes to contributing.md
Change-Id: I261e1936b96e70ad8347655a7a8d0eb792348d44
Reviewed-on: https://go-review.googlesource.com/c/tools/+/330853
Trust: Jean de Klerk <deklerk@google.com>
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2021-06-25 15:05:05 +00:00
Rebecca Stambler da404b52bc internal/lsp: start parsing go.work file like gopls.mod file
Allow users to experiment with golang/go#45713 by adding experimental
support for the go.work file. We handle it like a special case, very
similar to the current gopls.mod file mechanism. The behavior is
undefined if both a gopls.mod and go.work file exist. Ultimately, we
will deprecate support for the gopls.mod file if the go.work file
proposal is accepted, so I don't think it's important to be careful
about handling both simultaneously.

Change-Id: Id822aeec953fc1d4acca343b742afea899dc70ff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/328334
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Reviewed-by: Robert Findley <rfindley@google.com>
2021-06-24 04:20:31 +00:00
Rebecca Stambler 4833ac519e internal/mod: add workfile parser
This is a minimal copy of golang.org/x/mod/modfile that adds the parser
in CL 324764. It will be used to add experimental support for go.work
in gopls.

Change-Id: I75a8171eda763506ea8b5ffa0c6d163d59010333
Reviewed-on: https://go-review.googlesource.com/c/tools/+/329069
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2021-06-24 04:20:08 +00:00
Rob Findley bfc1674319 internal/lsp/cache: fix loading of std and cmd
The go/packages queries std/... and cmd/... don't work. I believe
they're supposed to be just "std" and "cmd" based on experimentation
(and stdlib_test.go), but I didn't see this explicitly documented.

Fixes golang/go#46901

Change-Id: I3d0ed48fa64a50eefe4b5cc6074a93455cd37dc8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/330529
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2021-06-24 03:06:00 +00:00
Rob Findley d824a7481d gopls/doc: include instructions for compiling generic code
Change-Id: Ia7855890c72f9e376816a7c2d71f9715c7f2eb9f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/330369
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2021-06-23 15:16:55 +00:00
Rob Findley 6d3e439322 gopls/doc: add instructions for working with generic code
Change-Id: Ib0e5e16042791d96ed0d71e900b006a2c536032a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/330031
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2021-06-22 19:12:15 +00:00
Rob Findley 4c651fc1fc internal/lsp/source: add inferred types to generic function hover
As an experiment, this CL introduces the first gopls feature that is
specific to generics: enriching function hover information with inferred
types. This is done with no additional gating on build constraints by
using the new internal/typeparams package.

The marker tests are updated to allow tests that rely on type parameters
being enabled.

Change-Id: Ic627d64b61a6211389196814edd0abe1484491eb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/317452
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2021-06-22 16:07:17 +00:00
Karthik Nayak d25f906682 internal/lsp: do not block on channel when there is an error
In `internal/lsp/cmd.(*connection).diagnoseFiles`, when we request for
`gopls/diagnoseFiles`, we are blocked on the channel even if there is an error.
In such a scenario, we've reach a deadlock since. Avoid this by checking for
error, existing if it exists and also closing the channel while we're at it.

Fixes golang/go#46251

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>

Change-Id: I4266ab3ac272a9ae3eac2084b70b6568b72c1984
GitHub-Last-Rev: 94bf2926a0f35d51d62643618a8072ef5a8b5225
GitHub-Pull-Request: golang/tools#324
Reviewed-on: https://go-review.googlesource.com/c/tools/+/329109
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2021-06-18 18:34:00 +00:00
Rebecca Stambler 463a76b3dc internal/lsp: only reload invalid metadata when necessary
This change adds a shouldLoad field to knownMetadata so that we can be
more selective about reloading these.

If a package has invalid metadata, but its metadata hasn't changed, we
shouldn't attempt to reload it until the metadata changes.

Fixes golang/go#40312

Change-Id: Icf5a13fd179421b8f70a5eab6a74b30aaf841f49
Reviewed-on: https://go-review.googlesource.com/c/tools/+/298489
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2021-06-16 01:55:16 +00:00
Rebecca Stambler 116feaea45 internal/lsp: move the progress tracker to the session
Sometimes, we may want to report progress from functions inside of the
cache package, so move the progress tracker to the session to allow for
that.

Change-Id: I15409577a7a5080e7f0224a95d159de42856ffa7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319330
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2021-06-16 01:01:29 +00:00
Rob Findley 3f7c32638c gopls/internal/regtest: skip the flaky TestResolveImportCycle
Also improve the description of the failing expectations.

Updates golang/go#46773

Change-Id: I9465de8a5005bb7ee719a536f8550afc54bd6044
Reviewed-on: https://go-review.googlesource.com/c/tools/+/328369
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2021-06-16 00:40:27 +00:00
Rebecca Stambler b12e6172dc internal/lsp/cache: don't delete metadata until it's reloaded
Retrying CL 271477, this time with parts of CL 322650 incorporated.

This CL moves to a model where we don't automatically delete invalidated
metadata, but rather preserve it and mark it invalid. This way, we can
continue to use invalid metadata for all features even if there is an
issue with the user's workspace.

To keep track of the metadata's validity, we add an invalid flag to
track the status of the metadata. We still reload at the same rate--the
next CL changes the way we reload data.

We also add a configuration to opt-in (currently, this is off by
default).

In some cases, like switches between GOPATH and module modes, and when a
file is deleted, the metadata *must* be deleted outright.

Also, handle an empty GOMODCACHE in the directory filters (from a
previous CL).

Updates golang/go#42266

Change-Id: Idc778dc92cfcf1e4d14116c79754bcca0229e63d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324394
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2021-06-16 00:19:40 +00:00
Rebecca Stambler 4b484fb136 internal/lsp: exclude the module cache from the workspace
This change treats the GOMODCACHE like a directory filter, and it
excludes any modules under the module cache from being considered part
of the workspace. This can happen when users open their entire GOPATH.

To do this, I had to propagate the view's root and gomodcache through
the exclusion functions, and I also had to add BuildGoplsMod to the
snapshot's interface.

Change-Id: Id80b359d73d09a525b380389917451e85357b784
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326816
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2021-06-11 17:18:39 +00:00
Rob Findley 9a55cb1fbb internal/lsp/command: minor clean-up of StartDebugging description
Change-Id: I9975a98fa47f2a17a9e013d67b4a48cc6fa17598
Reviewed-on: https://go-review.googlesource.com/c/tools/+/327110
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2021-06-11 16:06:07 +00:00
Rob Findley 490eac872f internal/lsp/command: add missing doc and support for result parameters
This CL cleans up doc/commands.md to include missing command
documentation and add support for result parameters.

Included are some quick-and-dirty extensions to the command metadata
loader that handle slices and arrays of struct types.

Change-Id: I43a85e88c9c53e21b790d89a45a9de444addcc63
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326909
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2021-06-11 15:30:39 +00:00
Rob Findley 9aa007ed16 internal/lsp/cache: invalidate broken packages when imports are deleted
In the presence of an import cycle, packages.Load will exclude the
problematic import from Package.Imports. This missing edge means that we
wouldn't correctly invalidate broken package metadata when a problematic
import is deleted. We also weren't treating import deletion as a change
that could invalidate metadata.

Fix this by invalidating any broken packages when an import path is
deleted, anywhere. This could be overly coarse, but there are various
problems with trying to do better.

Also change cycle errors from TypeError to ListError, as this
categorization was misleading.

Fixes golang/go#46667

Change-Id: Id19e7baf4009632caf3ae9365497552f9b64b5c7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326589
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2021-06-10 18:32:07 +00:00
Zvonimir Pavlinovic f6327c5b22 vta: adds the VTA call graph construction
This CL uses the results of propagating types and functions over the VTA
graph to create a VTA-based call graph.

Change-Id: I1481641dc6682f8fb874823de3073bf81187f6b7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323051
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2021-06-10 17:33:43 +00:00
Rob Findley 13cf844527 go/ast/astutil: fix panic when rewriting multi-argument type instances
Use the typeparams helper package to fix AST rewriting in go/ast/astutil
when encountering the new ListExpr type.

This is liable to break in the future when the go/ast API changes, but
at least it will be easy to find by virtue of using internal/typeparams.

Fixes golang/vscode-go#1551

Change-Id: Id34bbcdede9024ed9818bef6d73a19e993dd76a8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326131
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2021-06-09 21:40:20 +00:00
Zvonimir Pavlinovic 937957b6d9 vta: adds VTA graph propagation functionality
The propagation consists of two steps. First, VTA graph is converted to
a DAG by computing SCCs (resolving any graph loops) and then types and
higher-order functions are propagated through the DAG.

The results of this propagation are used in the final step to create a
call graph. That CL comes after this one.

Change-Id: Ib66a9401885d4105f3b6a68d5a0007f306882144
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323050
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2021-06-09 16:53:08 +00:00
Muir Manders e0b9cf74f6 lsp/completion: support completing to Elem() types
For array, slice, maps and chan candidates, we now support
transforming them to their element type in completions. For example:

    var m map[string]int
    var _ int = m<>

At <> we complete to "m[]" because we see that the map value type
matches our expected type.

Fixes golang/go#46045.

Change-Id: Ibee088550193a53744f93217cc365f67f301ae90
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2021-06-09 15:58:30 +00:00
Muir Manders 16e5f55009 lsp/completion: search deeper for candidate type mods
Now we search up to three levels for candidate modifiers. For example,
we can now complete "foo" to "foo()()" (double invocation).

Granted this is rarely useful, but it generalizes and simplifies the
searching we did for dereference modifiers.

Updates golang/go#46045.

Change-Id: Ibf0be8158e16a0a26a6344a346f34af8fe182bb0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323450
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2021-06-09 15:58:24 +00:00
Muir Manders b579874149 lsp/completion: reorganize how we track candidate type mods
"type mod" refers to agglutinative expressions such as dereference
"*", invocation "()", and slicing "[:]". When considering an object as
a completion candidate, we check whether applying a type mod would
make it a better candidate.

Previously we tracked the type mods we wanted to apply to a candidate
by setting bool fields. Now instead we keep a slice of the type mods.
This has two main advantages:
- The mods are now ordered which will allow us to format candidates
  properly when the same mods can appear in different order (e.g.
  "<-*foo" or *<-foo").
- We can now record any mod multiple times allowing for "<-<-foo" or
  "foo()()".

I changed the formatting code to always create a snippet object since
that made things simpler. I had to tweak a few snippet helper methods
to accept a snippet argument rather than creating a new snippet.

This commit's only functional change is that we no longer show any
type mods in candidate labels. For example, the user will now see
"foo" in the completion popup instead of "*foo". Showing the operators
adds noise to the candidate list, and we didn't display them
consistently.

Updates golang/go#46045.

Change-Id: I3ea7baa1ee2fee80a1f8cfe88cbae1093ae269ba
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2021-06-09 15:58:13 +00:00
Suzy Mueller 890984ba22 internal/lsp: change generated variable names to be more verbose
If new functions or variables need to be created during an extract
call, then we choose the new names. This change makes those names
more descriptive to make the generated names easier to read and
understand.

Before:
cond0, ret0 := fn0()
if cond0 {
    return ret0
}

After
shouldReturn, returnValue := newFunction()
if shouldReturn {
    return returnValue
}

Change-Id: I44795dc45185c75d5bf65e48378aa54d6c156212
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326112
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2021-06-09 14:15:55 +00:00
Suzy Mueller 9f230b5628 internal/lsp: fix extract bug choosing available identifiers
When choosing variable names, extract makes sure that the chosen
name does not conflict with any existing variables. By avoiding these
conflicts, we may actually have a conflict with the other names we
are choosing. This change removes this conflict by sending the next
index to use as the suffix of the function name.

Change-Id: Icd81b67db29db2503e214d24ec19ca1065cda090
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326111
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2021-06-09 14:15:26 +00:00
Rebecca Stambler 4e58f8f09d internal/lsp: handle out of range panic in template parsing
Fixes golang/vscode-go#1548

Change-Id: I95911a417cecc514151e75a60253ef119803885e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326089
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2021-06-08 16:06:52 +00:00
Zvonimir Pavlinovic 716319fe59 vta: finalizes VTA graph construction by adding support for function calls
These include call and return statements as well as closure creations
and panics/recovers.

Change-Id: Iee4a4e48e1b9c304959fbce4f3eb43eecd8cb851
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2021-06-07 18:10:59 +00:00
Zvonimir Pavlinovic 234f954de3 vta: extends VTA graph construction to handle collections
Collections include channels, slices, ranges, maps, and their related
SSA statements.

Statements involving functions and function calls will be addressed in a
future CL.

Change-Id: I552cbf3ee9d65e125270db69d1fc3c3f6491b121
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2021-06-07 17:02:02 +00:00
Diego Medina 126df1d64a cmd/getgo: determine current version via /dl/?mode=json API
The getgo tool was using the golang.org version as the latest
version to fetch. But this is not always the latest version.

We now use https://golang.org/dl/?mode=json which is the
official latest version.

Fixes golang/go#42676

Change-Id: I1cd90bfba12b19759599e89b7b4a095700999c09
Reviewed-on: https://go-review.googlesource.com/c/tools/+/270878
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2021-06-07 15:22:48 +00:00
Suzy Mueller b9b845e62b internal/lsp: fix folding range for block comments
Block comments are a single comment that stretches across multiple
lines. The folding range code made assumptions that each comment
was a single line. This change fixes the folding range logic to check for multiline comments and adjust the folding range to start at
the end of the first line.

Fixes golang/go#46253
Fixes golang/vscode-go#1511

Change-Id: I902f6cda7547cb1f8b4cd447152c3cf29a691d3b
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2021-06-07 15:13:07 +00:00
Rebecca Stambler 1225b6f53f internal/lsp: memoize allKnownSubdirs instead of recomputing
A lot of the time spent for every file change is recomputing the set of
known subdirectories in the workspace. We can easily memoize these known
subdirectories and avoid recomputing them on every file change. Do that
here and update the set as file creations and deletions come in.

Updates golang/go#45686
Fixes golang/go#45974

Change-Id: Ide07f7c90f0cafc3a3cc7b89ba14ab82d4e3ab28
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2021-06-04 20:34:05 +00:00
Muir Manders 7295a4e735 lsp/completion: don't offer untyped conversions
Don't offer nonsensical untyped conversion candidates like "untyped
int()" in cases like:

    var foo []int
    foo[<>]

Fixes golang/go#46436.

Change-Id: Ied90cd35298696672b8313575b5d603f4921e1be
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2021-06-04 17:45:44 +00:00
Zvonimir Pavlinovic bf132055df vta: adds VTA graph construction for basic program statements
Basic SSA program statements include storing and loading from a
register, storing and loading from a field, unary operations, make
instructions, tuple extractions, and type conversion/assertions.

Support for collections, including channels, and function calls will
happen in future CLs.

Change-Id: I2ab988dbdc5cfe67ba7f3946910a03416045ec6c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322950
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2021-06-04 01:02:31 +00:00
Rebecca Stambler 8f2cf6ccfc gopls/internal/regtest: clean up TestFillReturnsPanic
The test doesn't necessarily need to require exactly 2 log messages, so
the match doesn't need to be so exact.

Updates golang/go#46546

Change-Id: I6ec5dee820c76c41db7b1d4bad3925fc7afe25e4
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2021-06-03 18:03:08 +00:00
Rebecca Stambler 4abb1e2f28 internal/lsp: handle empty buffers in template parsing
Fixes golang/vscode-go#1540

Change-Id: I64514915d555bf0c0ff791b213bb834e9e99a0af
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2021-06-03 16:41:39 +00:00
Rebecca Stambler 7ac129f24a internal/lsp: don't diagnose/analyze intermediate test variants
As part of debugging CL 324394, I found that we were returning
intermediate test variant packages in packageHandlesForFile. This
happened because, even though these packages were not workspace
packages, they would still be picked up by the file URIs -> IDs map.

This is typically not a problem when we are picking out the widest or
narrowest package for a specific request, but for diagnostics on changed
files, we run them on all of the possible packages. This also led to us
analyzing these intermediate test variant packages. Filter them out, as
we will never want them for this purpose.

Change-Id: Ifa780cd104f9c4b3fe6c530402956e2337c8fcdc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324689
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2021-06-03 14:48:35 +00:00
Rebecca Stambler 1c2154ae38 internal/lsp: address some staticcheck warning
Change-Id: I5eea4d35ef6ad4159ca96ba2765477c4603a1ca6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324396
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2021-06-03 03:03:28 +00:00
Rebecca Stambler 384c392572 Revert "internal/lsp/cache: don't delete metadata until it's reloaded"
This reverts commit 46e69bf3b2.

Reason for revert: Still has bugs associated with it and want to do a release

Change-Id: Ifa80bde147aa23aa4029a157d5dbaf6479d53024
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324290
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2021-06-02 19:45:53 +00:00
Bryan C. Mills 29f5b8f057 internal/testenv: treat netbsd-arm*-bsiegert as slow builders
Change-Id: I80f22d6ffdb38085dabba12ec5f53c3e5034d132
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324229
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2021-06-02 19:26:46 +00:00
Bryan C. Mills 7922491030 go/packages/packagestest: make Export skip tests involving unsupported links
Also make Export create all parent directories before all files.
If the files are symlinks to directories, the target directory must
exist before the symlink is created on Windows. Otherwise, the symlink
will be created with the wrong type (and thus broken).

Fixes golang/go#46503
Updates golang/go#38772
Updates golang/go#39183

Change-Id: I17864ed66e0464e0ed1f56c55751b384b8c59484
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234112
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2021-06-02 19:23:16 +00:00
Rebecca Stambler 726034ecff Revert "internal/lsp: enable semantic tokens by default"
This reverts commit 5ab822f631.

Reason for revert: Too early to enable since we need to figure out a plan for formatting directives

Change-Id: I46567b271d4ecd7e4af574221520a72bd8b8e500
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324289
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2021-06-02 18:55:23 +00:00
Fazlul Shahriar 7271753b67 internal/jsonrpc2_v2: make TestIdleTimeout pass on Plan 9
Fixes golang/go#46175

Change-Id: I9c801ff42392dbff2fcb74dea7549d849c7e3624
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323529
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2021-06-02 15:04:26 +00:00
Karthik Nayak 377464f22d internal/lsp: include function literals in outgoing call hierarchy
Currently we don't consider function literals in outgoing call
hierarchy, because we only consider expressions of type
`ast.SelectorExpr` and `ast.Ident`. So function literals are skipped.
Fix this by ensuring we traverse through other types even if we
don't add the type itself as an outgoing call hierarchy.

Fixes golang/go#43438

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>

Change-Id: I9eacbd5ec7a68224518bf0e405319adeb673c853
GitHub-Last-Rev: 3e7118a8fd090b339a3eacf32fa8d62e05a76b87
GitHub-Pull-Request: golang/tools#320
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323809
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2021-06-01 22:58:04 +00:00
Muir Manders df07577eb1 lsp/completion: fix variadic param candidate ordering edge case
In cases like:

    var foo func(...interface{})
    var one int
    var two func() (int, int)

    foo(<>)

At <> we were preferring "two()" over "one" because we were really
excited that the multi return value function was usable. "one" was not
preferred because the expected value is interface{} (we default to
saying candidates _don't_ match interface{} to give non-type based
aspects of candidate inference a chance to shine).

Fix by applying the corresponding interface{} logic to the assignees
checking: ignore the case of completing into func(...interface{})
since all multi return value functions would match.

Fixes golang/go#46378.

Change-Id: I355daa75e067e8b14508ca50b8d3b6b727df5fec
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2021-06-01 17:02:03 +00:00
Dominik Honnef 6123e5fbf2 internal/gocommand: run 'go list' on the unsafe package when fetching release tags
The specific package we run on doesn't matter, but using unsafe will
be a lot faster than running on whatever package the working directory
is pointing at.

Change-Id: Iae65a262c9bb129f8c8442a72cebf131521357ee
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2021-05-29 00:21:43 +00:00
Rebecca Stambler 5ab822f631 internal/lsp: enable semantic tokens by default
Change-Id: Ie094874849fce1ff06988c8b1809f48a5a34b555
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2021-05-27 19:51:27 +00:00
OneOfOne eb0b8a15bc internal/lsp: findIdentifier always return an error
Fixes golang/vscode-go#1522

Change-Id: I9da0e5486e1494cf7948beefa26f57d89d5b3933
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2021-05-27 19:51:01 +00:00
Rob Findley a3eb095d6a gopls/internal/regtest: skip TestDeleteModule_Interdependent
This test is flaky due to orphaned file reloading. Since it is for an
experimental feature, skip it until we understand the problem.

For golang/go#46375
Updates golang/go#46183

Change-Id: Id6b369f2b61730c8503e3532547708f7689343c3
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2021-05-25 21:54:09 +00:00