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Commit Graph

51 Commits

Author SHA1 Message Date
Michael Matloob
e8e6be9f45 internal/lsp: plumb suggested fixes through the LSP
Change-Id: Ia9e077e6b9cf8a817103d90481768ae99409c574
Reviewed-on: https://go-review.googlesource.com/c/tools/+/183264
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-26 21:02:18 +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
Michael Matloob
8b2b8cf54a internal/lsp: add a field on the package to store diagnostics
So we can surface their code actions later.

Change-Id: I735e5d025a1250861d49db227f5a79453f599140
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182837
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-06-19 16:20:43 +00:00
Rebecca Stambler
fdf1049a94 internal/lsp: determine diagnostics to show per-file, not per-package
Previously, if any one file in a package had a parse error, we would not
send type errors for any of the other files. Now we make this decision
per-file, so that, even if a file has parse errors, type errors in the
other files will be shown.

Fixes golang/go#32596

Change-Id: I086c04f0ec37cd1b33845153328faf368232d834
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182466
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-18 16:30:18 +00:00
Rebecca Stambler
9a3b5d688f internal/lsp: parse filenames only out of go list errors
This changes the packageErrorSpan function into the listErrorSpan.
Previously, this was causing the gopls-generated errors to get parsed,
which would result in attempts to send diagnostics for invalid filenames.

Fixes golang/go#32603

Change-Id: I7a54ed8884b78beb3f894598f18a24ed232f7412
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182460
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-14 19:27:58 +00:00
Ian Cottrell
1edc8e83c8 internal/lsp: update analysis runner for new features
This adds support for the AllObjectFacts and AllPackageFacts features that were
added to the analysis library.
It also moves the list of analyzers to an exported global so it can be added to
easily.

Change-Id: Ibbe81b17b190d04a0e49510c23558430bc03ca70
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182177
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-06-14 15:20:01 +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
Ian Cottrell
4d9ae51c24 internal/lsp: remove source.FileContent
On FileHandle Read now just returns the data hash and error
This makes it more obvious that you should handle the error, rather than hiding
it all in a struct.
We also change the way we get and return content, the main source.File
constructs now hold a FileHandle that then updates on invalidation

Change-Id: I20be1b995355e948244342130eafec056df10081
Reviewed-on: https://go-review.googlesource.com/c/tools/+/180417
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-06 05:02:23 +00:00
Rebecca Stambler
178e83bc9d internal/lsp: build the builtin package preemptively
This change fixes a regression introduced by the building the builtin
package on demand. Although this change increases the startup tasks of
gopls, it is necessary to ensure that we ignore diagnostics from
builtin.go.

Change-Id: I897e747a273056d70cecba486a74c75a736d8f80
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179921
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-03 18:19:26 +00:00
Michael Matloob
2b03ca6e44 go/analysis: add an End field to Diagnostic
This will allow diagnostics to denote the range they apply to.
The ranges are now interpreted using the internal/span library.

This is primarily intended for the benefit of the LSP, which will
be able to (in future CLs) more accurately highlight the part
of the code a diagnostic applies to.

Change-Id: Ic35cec2b21060c9dc6a8f5ebb7faa62d81a07435
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179237
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-30 17:14:27 +00:00
Rebecca Stambler
12d7342421 internal/lsp: refactor to separate pieces of type-checking
Change-Id: Idab49286e59803e4ae0f749eb9f2990b611ea689
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179439
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-30 04:37:10 +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
75713da896 internal/lsp: add a file system abstraction
Change-Id: Ie42835b835ed22fddbba187ab10d8c31019ff008
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178097
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-05-24 13:48:47 +00:00
Rebecca Stambler
38d8bcfa38 internal/lsp: don't show diagnostics for mod files
The Go file changes didn't actually check the file extensions for the
files the Go extension is receiving. This error was not noticed because
the VSCode extension doesn't yet actually send mod files to gopls yet,
but it will in its next release.

Fixes golang/go#32178

Change-Id: Ia04d0a92ce7df13fcf4c601421bc000d69855f6d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178679
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-23 17:46:34 +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
Rebecca Stambler
9558fe4a78 internal/lsp: update column mapper with content on incremental changes
Fixes golang/go#32114

Change-Id: If2ffade3d8d1e026e3b0aa7f2c9db4dc46d7c8b2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178157
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-05-20 19:04:59 +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
2d081dbd58 internal/lsp: fix nil pointer when propagating diagnostics
Fixes golang/go#32030

Change-Id: I5ae7f2dc68c68c1a4851c637dcb75f312b0b35f5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/177057
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-14 14:35:49 +00:00
Rebecca Stambler
3eedecdc80 internal/lsp: propagate diagnostics for reverse dependencies
Prior to this change, if a package was rendered invalid by a change in
one of its dependencies, diagnostics would not be propagated until the
user typed in one of the package's files. Now, these updated diagnostics
are sent along with the diagnostics for the dependency.

Fixes golang/go#29817

Change-Id: I4761de31c4bdee820e024005f6112b3b3d2e1da6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/174977
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-10 13:52:23 +00:00
Rebecca Stambler
b9fed7929f internal/lsp: change some comments and variable names in completion code
Also, return diagnostics instead of errors from source.Diagnostics (to
avoid stuck diagnostics).

Change-Id: I56b067273982fd086ed74185e50eda5b72b5fba1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/174400
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-30 00:41:04 +00:00
Rebecca Stambler
079ac3a490 internal/lsp: handle error from runAnalyses
Change-Id: I73062bd3b4db8f238f009b8c8f3786c39c5d0d54
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173957
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-25 22:07:02 +00:00
Rebecca Stambler
e58f34171d internal/lsp: add more error propagation and logging for analyses
This change propagates more errors from analyses, instead of just saving
them in act.err, we actually return immediately. Ultimately, we'd want
to return to the previous behavior, but this will help us figure out
what's going wrong.

Updates golang/go#30786

Change-Id: I9d3288fd113c43775140e5c008e3e300b6d28c2a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/173497
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-24 02:44:48 +00:00
Rebecca Stambler
c6b416e8a4 internal/lsp: add more error handling to analysis
Updates golang/go#30786

Change-Id: Icf054b9bcd62b36e3aa55288946a9f0d1c845300
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172972
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-22 21:49:46 +00:00
Ian Cottrell
35716ff3bc internal/lsp: set the diagnostic source earlier
We now set the diagnostic source in the diagnostics call rather than when
converting it to the LSP protocol.

Change-Id: Ic762aaab1b2bf93b75c4c3d78aa84e2f918398fc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172408
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-17 00:57:43 +00:00
Rebecca Stambler
76038274be internal/lsp: fix badly formatted error messages from go vet
Fixes golang/go#31494

Change-Id: Id65e0daaa67a9fe955b7586af82e4433762cd56c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172398
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-04-16 19:41:54 +00:00
Ian Cottrell
f558378bf8 internal/lsp: make definition use the lsp protocol
instead of driving the source pacakge directly, it indirects through the lsp
protocol (the same way check does)
We are normalizing on all the command lines doing this, so that server mode
is more viable in the future.

Change-Id: Ib5f2a059a44a5c60a53129c554e3cc14ca72c4a8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/170577
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-05 17:02:55 +00:00
Ian Cottrell
5d16bdd7b5 internal/lsp: add the ability to log back to the client
Also use it for errors that were otherwise silently dropped
This makes it much easier to debug problems.

Also added command line control over whether the rpc trace messages are printed, which allows you to read the
log, otherwise the file edit messages swamp the log.

Change-Id: I7b70fd18034a87b2964e6d6d5f6f33dcaf7d8ea8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/170178
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-04-01 16:22:08 +00:00
Rebecca Stambler
24738cbdc1 internal/lsp: add an error result to findFile
This change allows us to return diagnostics in the case of a file that
doesn't exist.

Change-Id: I6275c0dc9103a3f44070919937afe27c64545828
Reviewed-on: https://go-review.googlesource.com/c/tools/+/170009
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
2019-03-29 21:46:45 +00:00
Ian Cottrell
ab21143f23 internal/lsp: adding command line access to diagnostics
Change-Id: I011e337ec2bce93199cf762c09e002442ca1bd0d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/167697
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-03-28 21:17:00 +00:00
Ian Cottrell
c70d86f8b7 internal/lsp: match files by identity
Instead of using a simple path map we now attempt to match files with
os.SameFile with fast paths for exact path matches. This should fix issues both
with symlinked directories (the mac tmp folder) and with case sensitivity
(windows)

Change-Id: I014dd01f89d08a348e7de7697cbc3a2512a6e5b3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/169699
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-03-27 20:14:19 +00:00
Ian Cottrell
2f43c6d1a2 internal/span: change to private fields
Change span to hide its fields and have validating accessors
This catches the cases where either the offset or the position is being used
when it was not set.
It also normalizes the forms as the API now controls them, and allows us to
simplify some of the logic.
The converters are now allowed to return an error, which lets us cleanly
propagate bad cases.
The lsp was then converted to the new format, and also had some error checking
of its own added on the top.
All this allowed me to find and fix a few issues, most notably a case where the
wrong column mapper was being used during the conversion of definition results.

Change-Id: Iebdf8901e8269b28aaef60caf76574baa25c46d4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/167858
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-03-15 18:05:47 +00:00
Rebecca Stambler
8110780cfa internal/lsp: add correct handling for circular imports
This change brings back handling for circular imports, which was removed
because I originally thought that go/packages would handle that.
However, since we are type-checking from source, we still end up having
to deal with that.

Additionally, we propagate the errors of type-checking to the
diagnostics so that the user can actually see some of the problems.

Change-Id: I0139bcaae461f1bcaf95706532bc5026f2430101
Reviewed-on: https://go-review.googlesource.com/c/tools/+/166882
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-03-15 16:49:21 +00:00
Rebecca Stambler
a10017ccd2 internal/lsp: handle common nil pointer exceptions
We may encounter these nil pointer if go/packages cannot find the
package of the given file, for example, when the user creates a new file
or a new package.

Change-Id: I16993017243a56332dd9f7e0aaf3c1d57f20fc3a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/167462
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-03-13 23:43:22 +00:00
Ian Cottrell
dbad8e90c9 internal/lsp: convert to the new location library
This rationalises all the position handling and conversion code out.
Fixes golang/go#29149

Change-Id: I2814f3e8ba769924bc70f35df9e5bf4d97d064de
Reviewed-on: https://go-review.googlesource.com/c/tools/+/166884
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-03-13 19:34:21 +00:00
Rebecca Stambler
7b79afddac internal/lsp: add a source.Package interface
This change adds a Package interface to the source package, which allows
us to reduce the information cached per-package (we don't use any of the
unnecessary fields in a *go/packages.Package).

This change also adds an analysis cache for each package, which is used
to cache the results of analyses to avoid recomputation.

Change-Id: I56c6b5ed51126c27f46731c87ac4eeacc63cb81a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165750
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-03-12 16:49:27 +00:00
Rebecca Stambler
00c44ba9c1 internal/lsp: add cache for type information
This change adds an additional cache for type information, which here is
just a *packages.Package for each package. The metadata cache maintains
the import graph, which allows us to easily determine when a package X
(and therefore any other package that imports X) should be invalidated.

Additionally, rather than performing content changes as they happen, we
queue up content changes and apply them the next time that any type
information is requested.

Updates golang/go#30309

Change-Id: Iaf569f641f84ce69b0c0d5bdabbaa85635eeb8bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165438
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-03-08 17:45:44 +00:00
Rebecca Stambler
d56157ae75 internal/lsp: remove handling for circular imports
Also, separate type-checking logic into its own file.
go/packages returns import cycle errors anyway, so we just return them instead.

Change-Id: I1f524cdf81e1f9655c1b0afd50dd2aeaa167bb2f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/165021
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-03-04 22:34:19 +00:00
Rebecca Stambler
f0a709d59f internal/lsp: set severity levels for compiler errors and vet checks
This change adds severity levels to source.Diagnostics, allowing us to
pass this information along to the LSP. This allows compiler errors to
show up in red, while vet results show up in green.

Change-Id: I2bc0b27ed6629f987c05affe00fdbe4b9bfb3b3e
Reviewed-on: https://go-review.googlesource.com/c/164299
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2019-02-27 23:25:17 +00:00
Ian Cottrell
508f945e1a internal/lsp: change File.Read to a File.GetContent accessor
Like the previous change to the FIle interface, we treat Read as if it were an
accessor, we remember the content part but not the error part, and we may fill
it in asynchronously, so this change makes it explicit.
In the future we should probably trap the error in the read and push it back
through another channel though, it will be the root cause of later errors.

Change-Id: I3d374dd557178b4e8c5544813cd77f5c0faefe5b
Reviewed-on: https://go-review.googlesource.com/c/162403
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-02-14 04:36:41 +00:00
Ian Cottrell
69a2705782 internal/lsp: remove error return values from interface "field" accessors
we don't really use them, only generate them in cases where the failure is way more fundamental, and then also fail
to remember them for the next call to the same accessor. Better to not have them.

Change-Id: I0e8abeda688f5cc2a932ed95a80d89225c399f93
Reviewed-on: https://go-review.googlesource.com/c/162399
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-02-13 21:58:50 +00:00
Michael Matloob
340a1cdb50 internal/lsp: copy fact support from go/analysis/internal/checker.go
This changes the analysis code from that which was in unitchecker.go
to that in checker.go, so we can run actions that get facts for dependencies
concurrently.

Adds the rest of the traditional vet suite to the LSP.

TODO(matloob): test that facts are actually propagated between packages

Change-Id: I946082159777943af81bcf10e503fecc99da521e
Reviewed-on: https://go-review.googlesource.com/c/161671
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-02-12 19:58:15 +00:00
Michael Matloob
a3f91d6be4 internal/lsp: add support for analyzers with dependencies on other analyzers
Steal alan's parallel analysis-graph-running code from multichecker.
Facts are still not supported.

Change-Id: I22f83375d7a314b49d4f458d6dd40c33febc795b
Reviewed-on: https://go-review.googlesource.com/c/161659
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-02-08 18:55:13 +00:00
Michael Matloob
a8576e2603 internal/lsp: connect basic analysis functionality
This starts hooking up the analysis framework into the LSP. It runs
the Tests analysis (which I think might be the only one that doesn't
need facts or results) and reports its diagnostics if there are
no parse or typecheck failures.

Next step: figure out how to pass through results.

Change-Id: I21702d1cf5d54da399df54437f556b9351caa864
Reviewed-on: https://go-review.googlesource.com/c/161358
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-02-06 21:48:25 +00:00
Rebecca Stambler
62138107df internal/lsp: fix diagnostics range computation
Diagnostics were failing because of
https://go-review.googlesource.com/c/tools/+/154742, where I was using
the wrong *token.File for the position calculations. This should fix the
problem.

Change-Id: Ic44e7799da56010b5014d56029fb4e0a8a6bb0e8
Reviewed-on: https://go-review.googlesource.com/c/155479
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-12-21 20:18:27 +00:00
Rebecca Stambler
85a09cd5ed internal/lsp: set file contents through the source.View, not File
Refactor code as a follow-up to
https://go-review.googlesource.com/c/tools/+/154742.
Also, change every instance of "source.URI()" to "fromProtocolURI", so
that we can add a better implementation of that later on (for Windows
support).

Change-Id: Ifa24ffd7e1aebf1f7d05df6f65742769ead0922f
Reviewed-on: https://go-review.googlesource.com/c/154741
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-21 19:33:31 +00:00
Rebecca Stambler
f344c7530c internal/lsp: add ranges to some diagnostics messages
Added a View interface to the source package, which allows for reading
of other files (in the same package or in other packages). We were
already reading files in jump to definition (to handle the lack of
column information in export data), but now we can also read files in
diagnostics, which allows us to determine the end of an identifier so
that we can report ranges in diagnostic messages.

Updates golang/go#29150

Change-Id: I7958d860dea8f41f2df88a467b5e2946bba4d1c5
Reviewed-on: https://go-review.googlesource.com/c/154742
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-12-20 19:13:07 +00:00
Rebecca Stambler
3576414c54 internal/lsp: refactor source package to use an interface
This change separates a cache package out of the
golang.org/x/tools/internal/lsp/source package. The source package now
uses an interface instead a File struct, which will allow it be reused
more easily. The cache package contains the View and File structs now.

Change-Id: Ia2114e9dafc5214c8b21bceba3adae1c36b9799d
Reviewed-on: https://go-review.googlesource.com/c/152798
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-12-05 22:49:35 +00:00