Commit Graph

1077 Commits

Author SHA1 Message Date
Michael Matloob ae5b881676 go/packages: suppress go list errors when ad-hoc package doesn't exist
Updates golang/go#29280

Change-Id: Ie5a5dc1fef8f3d989b3a5fffb6c2ca66e97c143a
Reviewed-on: https://go-review.googlesource.com/c/154517
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-12-17 22:06:04 +00:00
Than McIntosh fe2443f7b9 go/internal/gccgoimporter: test fix for older gccgo versions
Import test fix https://golang.org/cl/153831 from std lib
version (skips issue29198.go test for older versions of gccgo).

Updates golang/go#29198.

Change-Id: Iddd903068a73a307b1d19d93a7c03b1d00365022
Reviewed-on: https://go-review.googlesource.com/c/153870
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-12-13 21:01:26 +00:00
Ian Cottrell c779628d65 go/ssa: convert the objlookup tests to the new marker syntax
Change-Id: I5df3a3cc3d3ab236a6ad964914393a2ccb29803b
Reviewed-on: https://go-review.googlesource.com/c/145637
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-12-13 15:12:02 +00:00
Than McIntosh 7529026f5b go/internal/gccgoimporter: update package to match std lib version
Import changes from std lib version, specifically

    https://golang.org/cl/153821

which fixes a bug (#29198) in reading of import data.

Change-Id: I26d4da015b88bbc8f4f7775b0850bef5dffadbec
Reviewed-on: https://go-review.googlesource.com/c/153868
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-12-13 13:10:58 +00:00
Michael Matloob 59cd96f77e go/packages: add doc for the current state of overlays
Change-Id: Iba4ea587d7a14a1b930df122c925d1bc2f39eda8
Reviewed-on: https://go-review.googlesource.com/c/153678
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-12-11 22:18:32 +00:00
Michael Matloob e00c0697c2 go/internal/packagesdriver: expose function to return sizes
Change-Id: Ifc26abd280607401c8995b6b41fc0fd8ca29e7eb
Reviewed-on: https://go-review.googlesource.com/c/153199
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-10 15:05:41 +00:00
Ian Cottrell 4c874b978a go/packages/packagestest: allow tests to also specify overlay contents
This is needed to write the more advanced test cases for editor integrated
tools.
The expectation system also uses the overlay rather than the file if it is
supplied.

Change-Id: I8fd21f4efe5ac5869fa6e25d3cd0d5096051e5e5
Reviewed-on: https://go-review.googlesource.com/c/153240
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-12-07 22:22:22 +00:00
Ian Cottrell 8bc39b9880 go/packages: an empty overlay does not force source mode
we check length of the map, and a non empty map forces source mode.

Change-Id: Id314ad87b96d9154198122586fd8672a70c5ca95
Reviewed-on: https://go-review.googlesource.com/c/153198
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-07 18:38:36 +00:00
Michael Matloob bcd4e47d02 go/packages: check for containing files after overlay is processed
files specified in file= queries will now also be checked for in overlay
packages.

Fixes golang/go#29048

Change-Id: I096d02c3777e6c7decedfcb97c0d011ce9b47b28
Reviewed-on: https://go-review.googlesource.com/c/152797
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-12-06 19:48:17 +00:00
Alan Donovan 22934f0fdb go/...: use recommended issue tracker URLs
Change-Id: I249de6aad723f4c2c49dc028995f4f6d1fcc54fd
Reviewed-on: https://go-review.googlesource.com/c/152598
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-12-05 01:41:16 +00:00
Than McIntosh 555fafe5a2 go/internal/gccgoimporter: update package to match std lib version
This CL updates the importer to match the original code in the std lib
but for the necessary changes to make the code work in x/tools and
with older versions of the std lib.

Notably, it brings over changes from:

       https://go-review.googlesource.com/c/152378

Change-Id: Icaa05303a05a226c710b5923d8574f255651fe47
Reviewed-on: https://go-review.googlesource.com/c/152577
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-05 00:58:08 +00:00
Alan Donovan 65c3061cc9 go/analysis: remove "experimental" warning
The interface is now stable.

Change-Id: I7dc3feb70131cddb003f9320272a0fbd9b314048
Reviewed-on: https://go-review.googlesource.com/c/152597
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-12-04 18:38:27 +00:00
Alan Donovan 47a17e0312 go/analysis/unitchecker: use importer.ForCompiler under go1.12
importer.For does not populate the caller's token.FileSet
leading to spurious position information in diagnostics.

This change is the upstream fix for
https://go-review.googlesource.com/c/go/+/152258.

Fixes golang/go#28995

Change-Id: I9307d4f1f25c2b0877558426d4d71b3f1df99505
Reviewed-on: https://go-review.googlesource.com/c/152578
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-04 18:22:59 +00:00
Daniel Martí e5f3ab76ea go/analysis: fix more printf pointer bugs
The first issue is that %b and %o can print pointers, but printVerbs
didn't reflect that:

	The %b, %d, %o, %x and %X verbs also work with pointers,
	formatting the value exactly as if it were an integer.

The second issue is that arrays can never be printed as pointers. This
was previously reported as part of #27672.

The third issue is that only %p can print all slices, maps, and
functions as if they were pointers. This differs from verbs like %b or
%o, which can't print these types as pointers.

Fix all of the issues above, and add extensive test cases covering all
the combinations. Verified all of them with an executed program. The
amount of test cases is perhaps overkill, but this is not the first time
we've gotten the printf pointer logic wrong.

Updates #27672.
Fixes #28858.

Change-Id: I62eb79d505fd1e250a16b90bda3c68b702f35a29
Reviewed-on: https://go-review.googlesource.com/c/149979
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-12-03 21:00:56 +00:00
Ian Lance Taylor 99b2a93e1f go/analysis/unitchecker: improve error message for go tool vet
Previously running "go tool vet" said

vet: invalid command: want .cfg file (this reduced version of vet is
intended to be run only by the 'go vet' command)

With this change it says:

vet: invoking "go tool vet" directly is unsupported; use "go vet"

Updates golang/go#28869

Change-Id: I603ab2f75bb52d860e5cd7466e89d051dfbf3f08
Reviewed-on: https://go-review.googlesource.com/c/152217
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-12-03 20:10:58 +00:00
Than McIntosh e51e3523bf go/internal/gccgoimporter: update package to match std lib version
This CL updates the importer to match the original code in the std lib
but for the necessary changes to make the code work in x/tools and
with older versions of the std lib.

Notably, it brings over changes from:

   https://go-review.googlesource.com/c/152078
   https://go-review.googlesource.com/c/152077
   https://golang.org/cl/151997
   https://golang.org/cl/151557
   https://golang.org/cl/149957

including test fixes (we want tests to run when gccgo is available,
not just when all go tools are gccgo-based), bug fixes (primarily
related to aliases), performance enhancements, and new code to read
the V3 export data emitted by the most recent gccgo.

Change-Id: I2d34bace23769e62795599b93db8295169076594
Reviewed-on: https://go-review.googlesource.com/c/151717
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-11-30 22:34:53 +00:00
Michael Matloob 34bb05f9d8 go/packages: add support to overlays for unwritten files to existing packages
This support is not perfect, but should produce more accurate results than
the previous behavior, which is to silently drop those files.

Change-Id: Ia00c042bf303e9ec0fb1cbd579c0fccb29073de0
Reviewed-on: https://go-review.googlesource.com/c/151999
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-30 21:54:54 +00:00
Ian Cottrell 895048a75e go/expect: rewrite the expectation parser
The expectation langauge is LL(1) but the scanner does not support true
lookahead
This change adds a true LL(1) token stream and rewrites the parser in terms of
it.
Also clean up the error handling and use the behaviour to fix all the broken
edge cases, and then change the tests to cover the now correct behaviour.

Change-Id: If3d602cda490ed2f4732efce400eb8eabce8a8ec
Reviewed-on: https://go-review.googlesource.com/c/151998
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-30 19:57:46 +00:00
Ian Cottrell e015b91f26 go/expect: allow multi-line expectations
This allows for multi-line comments where a new line is allowed between
expectations.
It also allows trailing new lines and commas in expectation lists.

Change-Id: I714f8ad483a0238281f26ceb74ce9e73d922af69
Reviewed-on: https://go-review.googlesource.com/c/151718
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-11-29 22:11:41 +00:00
Michael Matloob c5b00d9557 go/packages: fix build breakage caused by math/bits to unsafe dep
Our tests compare import graphs from go/packages to expected graphs,
and one of the test cases imports math/bits. But in tip math/bits
picked up a dependency on unsafe, which means the expected graph
is different when run against a Go version >= go1.11. Remove that edge
before comparing against the expected graph to work around the breakage.

Change-Id: Ic586a75ba530741d251df9f87d0817a8e37d92ea
Reviewed-on: https://go-review.googlesource.com/c/151657
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-11-28 22:57:27 +00:00
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
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 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
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 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
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
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
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 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
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
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