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31 Commits

Author SHA1 Message Date
Alan Donovan
da91609d88 cmd/vet: roll back update of go/types import
(from importing golang.org/x/tools/go/types to std lib go/types)

The cmd/vet package should never have been included in this change.

Tested with 1.4.1, 1.5 and ~1.6 (tip).

Change-Id: I6d915619cbfa0297dbb9aa9ba033c1320a08c367
Reviewed-on: https://go-review.googlesource.com/18385
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-07 20:27:05 +00:00
Alan Donovan
542ffc7e75 tools: switch to standard go/types at tip
A few files have been forked and tagged "go1.5,!go1.6" to work around
minor API changes between the two types packages:
- constant.Value.String() in oracle/describe.go and its tests;
- constant.ToInt must now be called before constant.Int64Val.
- types.Config{Importer: importer.Default()} in a number of places
- go/types/typeutil/import_test.go uses lowercase names to avoid 'import "C"'.

Files in go/types/typesutil, missing from my previous CL, have been
tagged !go1.5; these files will be deleted in February.

All affected packages were tested using 1.4.1, 1.5, and ~1.6 (tip).

Change-Id: Iec7fd370e1434508149b378438fb37f65b8d2ba8
Reviewed-on: https://go-review.googlesource.com/18207
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-06 22:15:26 +00:00
Rob Pike
5a90b2958f vet: put a notice in main that this version of vet is not the place to update
Change-Id: I295d1e902626a3f5edd09a3b594a2059530ca821
Reviewed-on: https://go-review.googlesource.com/14820
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-21 17:48:06 +00:00
Matt T. Proud
871b75fbfc tools/cmd/vet: Incorporate comments from r@.
This commit fixes a few defects from a25a8d567b:

(1.) Making the top-level vars in main consistent w.r.t. documentation
     formatting, and the-like.

(2.) Removing of one-use top-level is-test predicate.

(3.) Including documentation of what the validation does and when.

Change-Id: I19b34d25836bb2af865219d18600e1add78c3fd7
Reviewed-on: https://go-review.googlesource.com/14557
Reviewed-by: Rob Pike <r@golang.org>
2015-09-15 16:08:13 +00:00
Matt T. Proud
a25a8d567b tools/cmd/vet: Create vet checks for examples.
In spite of https://blog.golang.org/examples and
http://golang.org/pkg/testing/#pkg-examples, a number of internal Go
authors have found writing documentation examples to be problematic in
the sense that the syntax is error-prone due to loose coupling with
identifiers found in the source corpus.

This commit introduces a suite of validations for documentation
examples:

    Overall:
    - Correct suffices, if present
    - Niladic function argument and return signatures

    func Example() {}
    func ExampleF() {}
    - F exists
    func ExampleT() {}
    - T exists
    func ExampleT_M() {}
    - T exists
    - M exists within T

Further, if the example is in `package foo_test`, vet attempts to
resolve the respective lookups in `package foo`, if `package foo`
exists (cf., `package stringutil_test`).

Change-Id: Ifa13906363541ebf28325681b749b14b7f8b103d
Reviewed-on: https://go-review.googlesource.com/11982
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-15 07:54:34 +00:00
Rob Pike
3caa6cfbd2 cmd/vet: add -tags flag
This is needed to control which files to test in the usual manner.
A followup CL on the main repo will add the flag to the go vet command.

Updates golang/go#10228

Change-Id: I820d3c74657b58de5e92276627368dedf4e2096c
Reviewed-on: https://go-review.googlesource.com/10692
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-06-04 19:20:34 +00:00
Robert Griesemer
850ba653f7 Revert "cmd/vet: switch to go/types from std repo"
This reverts commit 5b72e8e9bb.

Change-Id: I75270045022d69444b7812f290cdd5861af13feb
Reviewed-on: https://go-review.googlesource.com/8915
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-04-14 03:54:48 +00:00
Robert Griesemer
5b72e8e9bb cmd/vet: switch to go/types from std repo
Depends on https://golang.org/cl/8767/.

With this change, cmd/vet does not depend on x/tools anymore
and could be moved into the std repo if so desired.

Change-Id: Ia205c6e1a6a63eebb27776064e5c24491043b683
Reviewed-on: https://go-review.googlesource.com/8791
Reviewed-by: Rob Pike <r@golang.org>
2015-04-14 00:30:21 +00:00
Alan Donovan
4a08fb6fc3 cmd/vet: -unusedresult: report calls of pure functions in expression statements
Change-Id: Ib8b6eaecd56ae15c44fb8ac11c781244964428f1
Reviewed-on: https://go-review.googlesource.com/6661
Reviewed-by: David Symonds <dsymonds@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2015-04-06 21:44:23 +00:00
Andrew Gerrand
5ebbcd132f go.tools: use golang.org/x/... import paths
Rewrite performed with this command:
  sed -i '' 's_code.google.com/p/go\._golang.org/x/_g' \
    $(grep -lr 'code.google.com/p/go.' *)

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/170920043
2014-11-10 08:50:40 +11:00
Dmitri Shuralyov
cccd43354a cmd/vet: fix bug where incorrect exit code was returned
Fixes golang/go#8792.

This is a simple change that fixes the issue. It may be desireable
to opt for a larger code change that makes this problem less likely
to be inadvertedly reintroduced in the future. For instance, a vetMain()
func can be used similar to gofmtMain(), or the os.Exit call can be
deferred.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/150850043
2014-10-02 10:33:35 -07:00
Rob Pike
1e11d05bd8 cmd/vet: simplify file-reading code per gri
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/140960043
2014-09-03 16:49:14 -07:00
David Symonds
f895b43688 vet: Rearrange checkers to use a registration system.
This removes much of the AST logic out of main.go,
and makes it easier to build custom vet binaries

The trade-off in this change is for flexibility.
There's very little change in the per-check files,
a lot less code in main.go (specifically the AST walking
logic has shrunk), and it makes it much easier to build
custom vet binaries simply by dropping new source files
in the directory.

LGTM=josharian, r
R=r, josharian, kamil.kisiel
CC=golang-codereviews
https://golang.org/cl/83400043
2014-06-13 15:04:45 +10:00
Russ Cox
d8a81d8377 cmd/vet: fix line number in asm errors
Before:
: asm_amd64.s:16: [amd64] invalid offset new+16(FP); expected new+8(FP)
: asm_amd64.s:26: [amd64] invalid offset new+16(FP); expected new+8(FP)

After:
asm_amd64.s:16: [amd64] invalid offset new+16(FP); expected new+8(FP)
asm_amd64.s:26: [amd64] invalid offset new+16(FP); expected new+8(FP)

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/91510043
2014-05-19 12:31:28 -04:00
Russ Cox
b752e9ffdf cmd/vet: diagnose use of unsafe.Pointer to convert integer to pointer
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/100470044
2014-05-15 15:32:51 -04:00
Rob Pike
6bd3206b1f go.tools/cmd/vet: allow checks to be disabled explicitly as well as set explicitly
Now we can say
        vet -printf=false
to disable the printf test but run all others.
Implemented by creating a tri-state boolean flag that records whether it has been
set explicitly; before this, -printf=false was not distinguishable from not having
mentioned the printf flag at all.

Fixes golang/go#7422.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/72330043
2014-03-07 16:02:49 +11:00
Alan Donovan
ced954c167 go.tools/go/types: split Info.Objects map into Defs and Uses.
An identifier X in anonymous struct field struct{X} is both a
definition of a field (*Var) and reference to a type
(*TypeName).  Now that we have split the map, we can capture
both of these aspects.

Interestingly, every client but one was going to extra effort
to iterate over just the uses or just the defs; this
simplifies them.

Also, fix two bug related to tagless switches:
- An entry was being recorded in the Object map for a piece of
  synthetic syntax.
- The "true" identifier was being looked up in the current scope,
  which allowed perverse users to locally redefine it.  Now
  we use the bool (not untyped boolean) constant true, per the
  consequent clarification of the spec (issue 7404).

+ tests.

Fixes golang/go#7276

LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/68270044
2014-02-27 13:21:59 -05:00
Rob Pike
ee3eeefaa3 cmd/vet: check for nil result set in isStringer
Fixes golang/go#7149.

LGTM=gri
R=golang-codereviews, gri
CC=golang-codereviews
https://golang.org/cl/68260044
2014-02-24 11:39:42 -08:00
Rob Pike
cde4d316d2 go.tools/cmd/vet: docs: explain the command line interface better
How it handles packages vs. directories vs. files was not explained.

LGTM=rsc
R=golang-codereviews, gobot, rsc
CC=golang-codereviews
https://golang.org/cl/67150043
2014-02-24 10:44:02 -08:00
Alan Donovan
64ec206bfd go.tools/go/types: combine Info.{Types,Values} maps.
This results in significant improvement to type-checking time:
it reduces by 4% the entire running time of ssa/stdlib_test
(GOMAXPROCS=8, n=7).

LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/57770043
2014-01-28 16:46:24 -05:00
Josh Bleecher Snyder
866b24e166 cmd/vet: check for sync types being copied during function calls
Using a type containing a sync type directly
in a function call (whether as a receiver,
a param, or a return value) is an easy way
to accidentally copy a lock or other sync primitive.
Check for it.

The test as implemented does not provide 100%
coverage; see the discussion near the bottom of
testdata/copylock.go for shortcomings.

Fixes golang/go#6729.

R=adg, r, dsymonds
CC=golang-dev
https://golang.org/cl/23420043
2013-12-09 20:14:28 -08:00
Robert Griesemer
27563ff576 go.tools/go/types: move gcimporter to its own package
- fixed a couple of TODOs
- various cleanups along the way
- adjusted clients

Once submitted, clients of go/types that don't explicitly
specify Config.Import will need to add the extra import:

import _ "code.google.com/p/go.tools/go/gcimporter"

to install the default (gc) importer in go/types.

R=adonovan, gri
CC=golang-dev
https://golang.org/cl/26390043
2013-11-14 14:11:43 -08:00
Andrew Gerrand
61d86e98d5 go.tools/cmd/vet: check for recursive stringers
Fixes golang/go#6129.

R=r
CC=golang-dev
https://golang.org/cl/12936046
2013-08-21 11:07:53 +10:00
Andrew Gerrand
74ecc2c09b go.tools/cmd/vet: detect useless function comparisons
Also fix bug in types.go discovered by this check.

Fixes golang/go#5347.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/13102043
2013-08-20 16:11:01 +10:00
Rob Pike
aecec2f502 go.tools/cmd/vet: the composite test is about keys, not tags
Fix the confusion.
No semantic change, just some renamings.

Fixes golang/go#6017.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/12394043
2013-08-03 12:19:59 +10:00
David Symonds
75919c8eee cmd/vet: avoid panic if no valid inputs are found.
I'd like to make vet work as a filter, but passing /dev/stdin as a
command line argument doesn't work. This at least makes it not panic.

R=r
CC=golang-dev
https://golang.org/cl/11521045
2013-07-22 12:43:11 +10:00
Rob Pike
331c428e76 go.tools/cmd/vet: add check for shadowed variables
Experimental feature. It's too noisy yet to be enabled by default,
so it must be enabled explicitly by
        go tool vet -shadow *.go
or
        go tool vet -shadow directory
(The go command does not know about the -shadow flag.)

Fixes golang/go#5634.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/10409047
2013-06-21 11:27:53 -07:00
Rob Pike
86c0ff156c go.tools/cmd/vet: set the package name unconditionally
A better fix than the one in CL 10400044

R=gri
CC=golang-dev
https://golang.org/cl/10376044
2013-06-18 14:12:51 -07:00
Rob Pike
ce82fb0e23 go.tools/cmd/vet: use directory for pkg.path if path is "."
Before:
        math/big/nat_test.go:688: arg r for printf verb %s of wrong type: ..Word
After:
        math/big/nat_test.go:688: arg r for printf verb %s of wrong type: big.Word

R=gri
CC=golang-dev
https://golang.org/cl/10400044
2013-06-18 14:02:01 -07:00
Rob Pike
08cc526448 go.tools/cmd/vet: update to new go/types package
Now that it's in the same repository as the go/types package we can delete
the mechanism to build it without type checking.

Add a make rule to install it where the go tool can find it.
Why doesn't "go install" take a -o flag?

R=gri
CC=gobot, golang-dev
https://golang.org/cl/9526043
2013-05-20 12:20:05 -07:00
Rob Pike
01f8cd246d go.tools: add go/types, ssa, and cmd/vet
They will be deleted from their current homes once this has landed.
Changes made to import paths to make the code compile, and to find
errchk in the right place in cmd/vet's Makefile.
TODO in a later CL: tidy up vet.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/9495043
2013-05-17 13:20:39 -07:00