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Commit Graph

3022 Commits

Author SHA1 Message Date
Ian Cottrell
e782529d0d go/packages/packagestest: allow expectations to have *regexp.Regexp and interface{} parameters
Change-Id: I86312ae2f30ba04290e9b7a001e0284439f4bfe6
Reviewed-on: https://go-review.googlesource.com/c/151346
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-27 23:25:45 +00:00
Austin Clements
b4e97c0ed8 cmd/stress: prefix logs with start date/time
Currently, stress logs are named "/tmp/go-stress-" plus a random
number. This makes it really annoying to tease apart failures from
different stress runs.

This CL changes the default prefix to

  "/tmp/go-stress-<ISO 8601 date/time>-<random number>"

where the date/time part is when the stress command started.  This
naming clusters logs by stress invocation, making it easy to tease
apart invocations, even if there are multiple stresses running
concurrently or they are run back-to-back.

This also provides a flag to override this prefix.

Change-Id: I043e5ee7168ba6db4e2355e39b147071edbc6864
Reviewed-on: https://go-review.googlesource.com/c/150047
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-27 19:52:27 +00:00
Rebecca Stambler
36a8f0a386 internal/lsp: sort completions according to rank
The LSP specification doesn't have a Score field, so we must provide
sortText to the protocol in order to maintain the correct order.

Change-Id: I075849f520c21a0465dfb2060c598d8bae5f876b
Reviewed-on: https://go-review.googlesource.com/c/151237
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-27 19:33:00 +00:00
Yury Smolsky
04b5d21e00 cmd/gorename: move gorename TODOs to a comment in the code
This CL moves gorename TODOs from -help output
to a comment in the code.

Fixes golang/go#25824

Change-Id: I60e843804ebf1e374882ea3424e4ab749d038c1f
Reviewed-on: https://go-review.googlesource.com/c/150937
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-11-22 21:37:34 +00:00
Michael Matloob
91f80e683c go/packages: use absolute path of dir in call to go list for file= query
When running go list for a file= query, the go/packages code previously ran "go list ." command in the directory of the provided file. This was necessary for compatibility with the fallback, but caused problems when running file= queries for files in the module cache. We now use absolute directory paths (supported in Go >=1.11) in the non-fallback case and retain the previous behavior in the fallback case.

Change-Id: I3a9feaaeda12e068ec3d510b5f78437482c65b4c
Reviewed-on: https://go-review.googlesource.com/c/148199
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-21 19:39:51 +00:00
Ian Cottrell
72292f0c83 go/packages/packagestest: adds a benchmark version of TestAll
This is needed because testing.TB does not have a "Run" method for sub
tests, and the signature of the function it takes needs to match the
testing parameter.

Change-Id: I9201dd75891ed1bda300a4247fe7eac1e25bd30d
Reviewed-on: https://go-review.googlesource.com/c/150857
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-21 19:29:16 +00:00
Michael Matloob
ff0519d4cf go/packages: change driver communication mechanism
Pass in parameters to the driver in stdin rather than through argv.
This allows us to more easily route parameters to the driver and add
more parameters without breaking users. The driver doesn't need to
have the same interface as go list, because it's unlikely the driver interface
will converge with the go list interface.

We still pass in the query "words" to the driver in the argv, because
that's as good a place as any, but there's no "list" command.

Question: should we add a "command" option to the driverRequest struct?

Change-Id: Ifdbb3f84b6bfd04259f5ab63e756341d7f69de9b
Reviewed-on: https://go-review.googlesource.com/c/150337
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-21 18:20:56 +00:00
Rebecca Stambler
b5f2cae84d internal/lsp: fix a bug stopped package names from being printed
Also, trigger signature help on completion of a function (the "(" as a
trigger character doesn't work if it's part of a completion).

Change-Id: I952cb875fa72a741d7952178f85e20f9efa3ebff
Reviewed-on: https://go-review.googlesource.com/c/150638
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-20 23:48:46 +00:00
Rebecca Stambler
d5eafb537d internal/lsp: add InsertText to completions
If signature help is enabled, we should not offer parameter suggestions.
If signature help is not enabled, the user should be able to tab
through parameter completions.

Change-Id: I10990ef4aefb306ddbf51ed14cc1110065eba655
Reviewed-on: https://go-review.googlesource.com/c/150637
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-20 22:45:09 +00:00
Dima
9c8bd463e3 cmd/guru: add type position to describe command
Add typepos field to json output of describe command. This field shows where
type of current (under cursor) identifier is defined. This will help code editors
implement command 'Go to type definition'.

Implements [#27308](https://github.com/golang/go/issues/27308)

Change-Id: I4e02ddbdc03fecec98135b8996f9562a88a9cfb8
GitHub-Last-Rev: be47e397a293a96d3d39776d6090d861e7904a24
GitHub-Pull-Request: golang/tools#50
Reviewed-on: https://go-review.googlesource.com/c/140379
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-11-20 20:06:22 +00:00
Rebecca Stambler
b6bf295893 internal/lsp: fix formatting bug that keeps adding extra newlines
If a file ends with an empty newline, go/token treats the newline as the
final character of the previous line. VSCode, however, treats this as a
final line with no characters. We handle this by determining if the file
we are formatting ends with a newline character and updating the
protocol ranges accordingly.

Change-Id: Id8be0fd776ae65c8f0f937f3e718825e407cb217
Reviewed-on: https://go-review.googlesource.com/c/150338
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-20 17:38:33 +00:00
Rebecca Stambler
fc4f04983f internal/lsp: add more testdata for completion and diagnostics
Change-Id: I2a73e51b60f76a2af0f8ff4d34220b551e0cd378
Reviewed-on: https://go-review.googlesource.com/c/150041
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-20 06:06:34 +00:00
Ian Cottrell
89e258047f go/ssa: convert tests to new annotation system
Change-Id: I4f44da4fa6a4976b790b6707300cd4facf99c9a5
Reviewed-on: https://go-review.googlesource.com/c/144738
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-11-19 18:26:14 +00:00
Ian Cottrell
6dfe7efaa9 internal/lsp: add definition tests from godef
This makes our internal version of go to definition be tested with the
same test data that godef now uses

Change-Id: I04e488b6b9b2d891181f202ea1125b823a079c50
Reviewed-on: https://go-review.googlesource.com/c/150045
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-19 18:17:22 +00:00
Ian Cottrell
1aef897494 internal/lsp: fix for limitations of export data
It is impossible to reconstruct a line and column correctly from export data, so
we have to attempt to find open and process the file in order to guess what the
original pos was when we have one that originated in export data.
This occurs in any time in go to definition when the target is not in the same
pacakge as the source.

Change-Id: Ib2ee404d4f1c39d8bd7f1fbc2096d8d6cbeed6f8
Reviewed-on: https://go-review.googlesource.com/c/150044
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-19 18:00:18 +00:00
Alan Donovan
d1f8dbfb0b go/analysis/cmd/vet-lite: remove
The vet-lite tool was useful for developing the new cmd/vet but no
longer needs to exist. This changes removes the command and moves the
main.go file to the unitchecker directory where it serves as an
example and can still be built for testing and debugging.

See also https://go-review.googlesource.com/c/go/+/150297.

Change-Id: Ic10c7cd3aeeaa2e1397dd81939616c6877f7005d
Reviewed-on: https://go-review.googlesource.com/c/150298
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2018-11-19 17:56:07 +00:00
Ian Cottrell
3d801af142 internal/lsp: use subtests for all lsp categories
This makes it possible to run just one type of test if needed
Also add some verification that the right number of tests is being run
And finally collect all the expectations up front, including the completions.

Change-Id: Iee6045a8ad89fa399fefd03bc0712770701ec6f8
Reviewed-on: https://go-review.googlesource.com/c/149737
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-19 17:56:05 +00:00
Ian Cottrell
68f7e630ce internal/lsp: make all the tests work on 1.10
Also improve the error messages from a failing diagnostic tests so you can read
them.

Change-Id: I3554ce5a029de22a55a9636ed26ba02d95fc3246
Reviewed-on: https://go-review.googlesource.com/c/150042
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-19 17:55:51 +00:00
Ian Cottrell
31e4346e36 go/packages/packagestest: change the Export method to take a testing.TB
This allows it to be used in benchmarks as well as tests.

Change-Id: I1eb7307a0a7d27c541b14dd8b84c4bc2c770f3c9
Reviewed-on: https://go-review.googlesource.com/c/150257
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-19 17:55:25 +00:00
Daniel Martí
139d099f66 go/analysis: use TypeString when matching types
As Alan rightfully guessed, porting the stdmethods check to use go/types
required the use of types.TypeString not only when printing signatures
in warnings, but also when matching them.

Added a simple test case too.

Fixes golang/go#28792.

Change-Id: Ifbbdd4b1a2f1090d6f9a1674d52b8f0887a67d06
Reviewed-on: https://go-review.googlesource.com/c/149977
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-11-19 13:03:50 +00:00
Daniel Martí
70b12541d3 go/analysis: unindent some pieces of code
All of these were quite heavily indented for no good reason; breaking or
returning early makes the code easier to read and follow.

Change-Id: Ic539517b07604d71495277b16f1b7eb60d2e3d3c
Reviewed-on: https://go-review.googlesource.com/c/149978
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-11-19 11:39:21 +00:00
Alan Donovan
2ddaf7f79a go/analysis: two trivial doc tweaks
Change-Id: I9a85d4099550e56dd07dfb6e0f8921e3b3e8bd30
Reviewed-on: https://go-review.googlesource.com/c/150043
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-17 15:47:41 +00:00
Brad Fitzpatrick
e77c06808a godoc/redirect: improve Rietveld CL heuristic
Go's CL numbers as assigned by Gerrit have started to collide with the
lower numbers in the sparse set of CL numbers as returned by our old
code review system (Rietveld).

The old heuristic no longer works now that Gerrit CL numbers have
reached 150000.

Instead, include a map of the low Rietveld CL numbers where we might
overlap and bump the threshold heuristic up.

Updates golang/go#28836

Change-Id: Ice719ab807ce3922b885a800ac873cdbf165a8f7
Reviewed-on: https://go-review.googlesource.com/c/150057
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2018-11-16 19:35:47 +00:00
Alan Donovan
8e5aba0a36 go/analysis: harmonize flags across all checkers
The -json and -c=N flags, formerly belonging only to the
go/packages-based {single,multi}checkers, are now supported by
unitchecker as well.

The no-op -source, -v, -all, and -tags flags, formerly belonging only
to unitchecker, have moved to the analysisflags package, which is
common to all checkers.

The -flags flag now reports all registered flags (except the
{single,multi}checker-only debugging flags) rather than just those
related to analyzers, allowing one to say: 'go vet -json' or 'go vet -c=1'.

The code for printing diagnostics, either plain or in JSON, has been
factored and moved into the common analysisflags package.

This CL depends on https://go-review.googlesource.com/c/go/+/149960 to
cmd/go, which causes 'go vet' to populate the ID field of the *.cfg.
This field is used as a key in the JSON tree.

Added basic tests of the new -json and -c unitchecker flags.

Change-Id: Ia7a3a9adc86de067de060732d2c200c58be3945a
Reviewed-on: https://go-review.googlesource.com/c/150038
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-16 19:20:06 +00:00
Alan Donovan
e3f267ad69 go/analysis/cmd/vet-lite: remove pkgfact
It's only for debugging.

Change-Id: Ic2aacc6bcb52607c253f02b963e0e281213142b0
Reviewed-on: https://go-review.googlesource.com/c/150039
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-16 19:02:25 +00:00
Alan Donovan
23984592fe go/analysis/cmd/vet: remove pkgfact, findcall analyzers
The suite used by this tool matters to GOROOT/src/cmd/vet/all and the
'vetall' builder.  Add a comment to this effect.

Change-Id: I2e16eb670b03a7bae8224625baaebd1298e2424c
Reviewed-on: https://go-review.googlesource.com/c/150040
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-16 19:02:14 +00:00
Ian Cottrell
8190738e3d internal/lsp: add formatting functions to some common lsp protocol types
These are intended only for debug printing and error messages for the most
common protocol types that you need to know the contents of.

Change-Id: I1f0f7b17b4b12c3b26096b46808bce37c3722ced
Reviewed-on: https://go-review.googlesource.com/c/150037
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-16 18:53:46 +00:00
Rebecca Stambler
f87c222f14 internal/lsp: fix and add tests for formatting
The go/format.Node function fails silently on malformed ASTs, even
though it writes out an invalid tree containing the strings "BadExpr"
and "BadStmt". We fix this by checking for *ast.Bad{Expr,Decl,Stmt}
before running the function. Ultimately, this should be fixed upstream
and just return an error from format.Node.

Change-Id: I2ba25551f0e97c0321d8e757de67360af44044d7
Reviewed-on: https://go-review.googlesource.com/c/149613
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-15 19:42:43 +00:00
Ian Cottrell
fc2e60c3c3 internal/lsp: make Definition handle embedded fields
This change allows it to jump to the type if you are directly on the
embedded field when you trigger go to definition.

Change-Id: I48825a5a683e69c0714978c76b1d188d40b38c5d
Reviewed-on: https://go-review.googlesource.com/c/149615
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-15 19:04:06 +00:00
Alan Donovan
5215be16cd go/analysis/internal/unitchecker: reenable integration test
Fixes golang/go#28676

Change-Id: I361a5d61fb6acc90ff8c0167651a45cb9a433472
Reviewed-on: https://go-review.googlesource.com/c/149697
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
2018-11-15 19:00:07 +00:00
Ian Cottrell
1a405fd27e internal/lsp: better handling of .in files
This walks the list produced by the MustCopyFileTree call instead of
scanning the file system
It also removes the .in file from the copies, so only the trimmed
version will be present in the exported data set.

Change-Id: I95b0298ab49021a09f6b26e08158ce162b5a99e6
Reviewed-on: https://go-review.googlesource.com/c/149614
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-15 17:55:04 +00:00
Alan Donovan
f62bfb5415 go/analysis/passes/printf: fix regression in "recursive stringer" logic
The recursive stringer check should report cases such as

   func (x T) String() string { return fmt.Sprint(x) }

in which the receiver x (or possibly &x) was passed into a fmt print call.
However, in translating it from the go/ast to the go/types representation,
I inadvertently made it report any situation in which a value of type T
was passed to fmt, even when the value is not x, as in:

   func (cons *cons) String() string {
	... fmt.Sprint(cons.cdr) ...
   }

Fixed and tested.

Change-Id: I57e88755c9989deaaad45cc306a604f3db4ee269
Reviewed-on: https://go-review.googlesource.com/c/149616
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
2018-11-15 16:22:56 +00:00
Alan Donovan
17409aa234 go/analysis/unitchecker: a main function for vet-lite tools
(By "vet lite", we mean static tools that must be invoked by a build
system, such as 'go vet'.)

This CL publishes the former internal/unitchecker package.
Its misnamed Main function is renamed Run, and it has a new Main
that does the steps of a real main (log, flag, etc).

The motivation for this change is to reduce cmd/vet-lite to the point
of triviality to simplify the maintenance of the vendored copy of
x/tools in GOROOT, because GOROOT/src/cmd/vet will need a copy of that
logic. It is now essentially a one-liner.

Also, improve usage messages; analysisflags.PrintUsage wasn't
appropriate for all callers so it has been eliminated.
Each of {single,multi,unit}checker prints its own 1-line usage message.

Change-Id: I214c0e4ae7a2923eee8df3f7548341f2320cad2b
Reviewed-on: https://go-review.googlesource.com/c/149742
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-15 16:00:22 +00:00
Alan Donovan
1fdeb1692e go/analysis/internal/unitchecker: three fixes
- add a no-op -tags flag for legacy compatibility.
  Tags processing is done by go vet, but it passes the flag on.
  Exercised by cmd/go TestGoVetWithTags.

- rename OtherFiles to NonGoFiles in the JSON *.cfg file, to match
  the name actually used for this field (see github.com/golang/go/issues/27665).
  We really need to publish the types for this protocol.
  Exercised by cmd/go TestScript/vet_asm.

- suppress diagnostics in cfg.VetxOnly mode.
  Exercised by cmd/go TestTestVet.

Change-Id: I63259f1bd01531d110362e38190a220389b2ec4b
Reviewed-on: https://go-review.googlesource.com/c/149608
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-15 15:59:15 +00:00
Alan Donovan
103f3f3613 go/analysis: doc updates
Change-Id: Id784b350955cc8d76a1cc903b3ff29be36414434
Reviewed-on: https://go-review.googlesource.com/c/149741
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-15 15:56:33 +00:00
Alan Donovan
29e82b56d9 go/analysis/passes/printf: actually use doc constant
Change-Id: If33697d77a86e4b29089f3a1ba096477a34062be
Reviewed-on: https://go-review.googlesource.com/c/149740
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-15 15:56:23 +00:00
Ian Cottrell
2a3f5192be internal/lsp: handle $GOROOT in file paths
This happens whenever we load standard library information from export
data, and prevents the editor from understanding the file names

Change-Id: If5c04176a3e669ba396f322275993616e51ec097
Reviewed-on: https://go-review.googlesource.com/c/149612
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-15 01:11:54 +00:00
Ian Cottrell
6778892796 internal/lsp: use the new marker support
We use the custom marker support to allow us to simplify the
annotations, making it much easier to understand the tests.

Change-Id: Id818a286e4e85f48cfe505f14ec82a80498e494c
Reviewed-on: https://go-review.googlesource.com/c/149611
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-15 01:11:27 +00:00
Ian Cottrell
cd212e53e1 make the packagestest marker system more flexible
This exposes the ability to add markers to the public interface, and
changes the way markers are collected to make it so a standard call to
Expect can replicate the internal behaviour.
This allows custom rules to also add marks.

Also add a special EOF identifier that acts like a mark at the end of
the file in which it occurs.

Change-Id: Ic5e41cbc5b7ae3c4d1c5b8baba980147c1d22ef1
Reviewed-on: https://go-review.googlesource.com/c/149610
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-15 01:11:15 +00:00
Ian Cottrell
94339b8328 internal/jsonrpc2: change to a more synchronous dispatch model
Delivering each message in a go routine turned out to be problematic, there are some messages
that must be fully processed before later messages are started, and there was no way to guarantee that.
We now push concurrence handling up to the higher level, this has the disadvantage of not being able to guarantee
we respond to call messages correctly, but its a small price to pay.
The LSP currently processes each message fully in order blocking the handler, while we still work on basic
functionality.

Change-Id: If0648c77713ddbe4fed69da97a57696f433b8002
Reviewed-on: https://go-review.googlesource.com/c/149497
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-14 19:09:51 +00:00
Alan Donovan
7d6b83ca4d go/analysis: exit nonzero upon diagnostics
This change causes singlechecker and multichecker to exit with the
correct error code: 0 for success, 1 for load/analysis and other
errors, 3 for diagnostics.  (We avoid 2 because the flag package uses
it.)

In JSON mode, errors in package loading, parsing, typechecking and
analysis are successfully in JSON format, with exit code 0.

+ Test.

Change-Id: Iaf130ed3d4cb3e747a628af6da8dc97d065aa869
Reviewed-on: https://go-review.googlesource.com/c/149603
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-14 17:55:09 +00:00
Alan Donovan
2f5a1a7a23 go/analysis/passes/stdmethods: show p.T not dir/p.T in diagnostic
Type.String prints named types using the complete package path: "dir/pkg.T"

The notation used by canonicalMethod, and the cmd/vet/all whitelist,
and the one users want to see, uses only the package name: "pkg.T".

Change-Id: If2334a8cca1fb80e947cb105530b946a5a8dec7b
Reviewed-on: https://go-review.googlesource.com/c/149597
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-14 16:30:30 +00:00
Alan Donovan
4f7cb802ba go/analysis/passes/asmdecl: turn two diagnostics into log messages
Vet issues a warning (non-error diagnostic) when, for example, it
cannot check an assembly file because the Go and asm symbols are in
different packages. The new analysis API has no concept of warnings:
any diagnostic always causes a non-zero exit.

This change turns the asmdecl diagnostics back into warnings using
log.Print, which is not ideal, but is necessary to pacify cmd/vet/all
and its whitelist during the transition. Better solutions would be for
the new analysis API to have a concept of warning, or for asmdecl to
be silent and cmd/vet/all's whitelist not to expect these messages.

Also, fix a bug in the "cross-check" predicate: cmd/vet confuses the
name of a package and its path. The a∕b∕c names (using Unicode
division slash) that appear in assembly correspond directly to the
path.

The only effective test of this change will be cmd/vet/all itself.

Change-Id: I2e402d48717df723e2efdc2379636ec9b204031d
Reviewed-on: https://go-review.googlesource.com/c/149598
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-14 16:30:01 +00:00
Alan Donovan
99072bc9d7 go/analysis/passes/stdmethods: rewrite check to use go/types
Now that vet can rely on go/types, there's no reason to do extra work to
avoid using it. The rewrite lets us get rid of the field list flattening
code, as well as the slight verbosity that comes with go/printer.

While at it, make the testdata/method.go expected errors be more
specific, to make sure that we're not breaking the warnings that are
printed.

This change was originally made to cmd/vet in
https://go-review.googlesource.com/c/148919

Change-Id: I123e64d369e521199712c9807583c53d428534ac
Reviewed-on: https://go-review.googlesource.com/c/149418
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-14 14:52:09 +00:00
Rebecca Stambler
7e59e591a2 internal/lsp: implement signature help
Add SignatureHelp functionality to source package. Tests will be added
in a subsequent change.

Change-Id: Ia43280946d96a984c5741273a00c12255d637b2a
Reviewed-on: https://go-review.googlesource.com/c/149177
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
2018-11-13 20:09:34 +00:00
Alan Donovan
0a8e63141f go/analysis/passes/printf: fix false negative with nested pointers
Pointers to compound objects (structs, slices, arrays, maps) are only
followed by fmt if the pointer is at the top level of an argument. This
is to minimise the chances of fmt running into loops.

However, vet did not follow this rule. It likely doesn't help that fmt
does not document that restriction well, which is being tracked in
 #28625.

This change was originally made to cmd/vet as
https://go-review.googlesource.com/c/147997.

Updates #27672.

Change-Id: I65944cf355baedb4578af57046e2bbfd3fe6a9dc
Reviewed-on: https://go-review.googlesource.com/c/149319
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
2018-11-13 19:37:33 +00:00
Alan Donovan
c921186869 go/analysis/internal/analysisflags: add flag aliases for renames
Some of the Analyzers' names were changed during the refactoring.
These legacy flags ensure the old names continue to work.

Change-Id: I466aa38ec55071c944fb73571915aa7afb42dbc2
Reviewed-on: https://go-review.googlesource.com/c/149417
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
2018-11-13 19:21:26 +00:00
Alan Donovan
ea84011da2 go/analysis/passes/printf: fix some pointer false positives
fmt's godoc reads:

	For compound objects, the elements are printed using these
	rules, recursively, laid out like this:

		struct:             {field0 field1 ...}
		array, slice:       [elem0 elem1 ...]
		maps:               map[key1:value1 key2:value2 ...]
		pointer to above:   &{}, &[], &map[]

That is, a pointer to a struct, array, slice, or map, can be correctly
printed by fmt if the type pointed to can be printed without issues.

vet was only following this rule for pointers to structs, omitting
arrays, slices, and maps. Fix that, and add tests for all the
combinations.

This change was originally made to cmd/vet in
https://go-review.googlesource.com/c/147758

Updates #27672.

Change-Id: I7e25ecaeed619ae8b6ada79bccacba6b67171733
Reviewed-on: https://go-review.googlesource.com/c/149318
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-11-13 18:24:24 +00:00
Alan Donovan
150d8ac285 go/analysis/cmd/vet-lite: remove deprecation warnings
Per discussion with Russ,
the -all/-source/-v flags now silently do nothing, and
the -printffuncs (et al) shims now silently delegate to -printf.funcs, and
the -NAME.enable (et al) flags are now called just -NAME.

Various minor tweaks to command-line help messages.

Change-Id: If6587937f58446e605eca4d3a5be0aaf6287065d
Reviewed-on: https://go-review.googlesource.com/c/148879
Reviewed-by: Russ Cox <rsc@golang.org>
2018-11-13 15:29:50 +00:00
Rebecca Stambler
a8570e12b6 internal/lsp: use bytes.Buffer instead of strings.Builder
x/tools only supports Go 1.10 and Go 1.11, but it's such a simple fix to
support 1.9, so change from strings.Builder to bytes.Buffer.

Change-Id: Ie37d6c7da7ce7dbbd4e9ec933e1eff3304142a59
Reviewed-on: https://go-review.googlesource.com/c/149178
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-13 03:38:37 +00:00