Adds a TODO list for the guru cmd. The main goal is document know
issues that we have not addressed.
Updates golang/go#47326
Updates golang/go#52503
Change-Id: I126b0f06081b606124d89a13f8805fa1ac6e56e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/403354
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Gofmt to update doc comments to the new formatting.
(There are so many files in x/tools I am breaking up the
gofmt'ing into multiple CLs.)
For golang/go#51082.
Change-Id: I0cc2e6cac2e4ed975770aea78cc2f39c13d6f874
Reviewed-on: https://go-review.googlesource.com/c/tools/+/399357
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Fix several tests that were failing at CL 368254 due to inconsistent
formatting of standard library types across Go versions. Generally this
is addressed by replacing interface{} with any, though the mechanism
varies.
Where possible, prefer to update the test data to accurately reflect
1.18 formatting.
Change-Id: Ia92cd565d2ba1dd464891093b78c636fcaff44bc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/370655
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CL 313251 fixed the describe test, but inadvertently broke the referrers
test due to changing line numbers in describe/main.go. This CL amends
those line numbers.
Fixesgolang/go#45778
Change-Id: I1dbdd9157091e061bfa35ec0b5c4690aa09ae092
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313669
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Reviewed-by: Bryan C. Mills <bcmills@google.com>
Go 1.17 adds the unsafe.Add and unsafe.Slice functions, which causes the
guru describe assertions about unsafe to either fail at 1.17 or fail at
earlier Go versions.
This is causing the longtest builds to break.
Remove them for now. If we remember, we can add them back once we no
longer support 1.16.
Fixesgolang/go#45778
Change-Id: Ie72355fbab8e614c0150097c84c796e78d968839
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313251
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The go/types fix for golang/go#44515 changed the type string for unsafe.Pointer
from a fixed "unsafe.Pointer" to a customizable package path followed
by "Pointer" (the customization was in place for any other object already).
The package path customization is done through a user-provider types.Qualifier
function. If none is provided, the ordinary package path is used ("unsafe").
Guru provides a package-relative qualifier which leaves away the package
path if an object is local to a package. As a result, unsafe.Pointer is
printed as "Pointer" which breaks an existing test.
Provide no qualifier function when printing a type from package unsafe
instead (there's only unsafe.Pointer). Since no qualifier was used in
the past, this Guru-specific change will also work when run using earlier
Go versions.
Fixesgolang/go#44596.
Updates golang/go#44515.
Change-Id: I3c467e4ed09aa13deb50368fe98e42c723a6376b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/296289
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Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild
Not strictly necessary but will avoid gofmt changes later
as people edit these files.
Change-Id: I20749ed82e18938a305d9425d0739f0ea7bd24c0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/294414
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I got tired of spurious 'git' diffs while a 'go test' was running, so
I fixed the test that produced the diffs. (We need to do that anyway
in order to run them in the module cache, plus it's just good hygiene
not to have tests interfering with each other's sources.)
Tested using:
$ chmod -R ugo-w . && go test ./...; chmod -R u+w .
Updates golang/go#28387
Change-Id: Ie17e31aecf0e3cb022df5503d7c443000366a5c6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192577
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Some tests were split off for Go 1.9, when we still supported Go 1.8.
This change recombines them and removes the special handling for 1.9.
Fixesgolang/go#24421
Change-Id: Ic871f4c3af4bb90b00cdd6d7b8f3253783554535
Reviewed-on: https://go-review.googlesource.com/c/161000
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Since *ast.CommClause implements ast.Stmt, type switch for
it would never execute in the original code, it will always
execute ast.Stmt branch.
Moving concrete types before interfaces help in this case.
Change-Id: Id84f2f7f3fac859029155d8e6debf4a8ef170b26
Reviewed-on: https://go-review.googlesource.com/c/153397
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Reviewed-by: Alan Donovan <adonovan@google.com>
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>
The several functions not exported, Use "The xxx function ..." rule.
Change-Id: Iaba2490b4a9675213f70d055bd9ded9e5a245aa5
Reviewed-on: https://go-review.googlesource.com/c/47872
Reviewed-by: Alan Donovan <adonovan@google.com>
Some users may set GO111MODULE=on, and we will eventually want to be able to
build x/tools itself in module mode.
Updates golang/go#27858
Updates golang/go#27852
Change-Id: Iaf488b2a89e6526471530245cb580f1f0391a770
Reviewed-on: https://go-review.googlesource.com/137815
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Go 1.11 changed the behavior of line directives, so reflect that in the
golden files for tests.
Change-Id: I7df282dfbeb3bfc5d75481c345acf724bb0b25bf
Reviewed-on: https://go-review.googlesource.com/128999
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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The gccgo compiler does not provide a gc-style GOROOT with standard
library sources. The effect is that guru may not fully work when using
gccgo. However, it can fully work if the GOROOT environment variable
points to valid gc-style GOROOT. In that case, make it work by telling
the go/build package to use gc mode.
Change-Id: Iadff8be61be8cc9a7ff2ca0a067b116b62895451
Reviewed-on: https://go-review.googlesource.com/117997
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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I felt guilty about leaving 2% on the table in CL 108878,
so I thought I'd get it a different way.
Teach readFile to accept a re-usable bytes.Buffer to read into,
to reduce the amount of garbage created.
To limit the possible memory impact of giant files,
only re-use the buffer for the duration of a single package.
Even that is enough to help.
name old time/op new time/op delta
Referrers 4.67s ± 3% 4.58s ± 2% -1.96% (p=0.029 n=10+10)
name old user-time/op new user-time/op delta
Referrers 16.5s ± 3% 15.8s ± 1% -4.39% (p=0.000 n=10+8)
name old sys-time/op new sys-time/op delta
Referrers 16.1s ± 3% 15.9s ± 3% ~ (p=0.218 n=10+10)
This work supported by Sourcegraph.
Change-Id: I594ef25c0fd5ccb766ff5b98dbbd1a75a7a4f957
Reviewed-on: https://go-review.googlesource.com/108935
Reviewed-by: Alan Donovan <adonovan@google.com>
This simplifies and unifies the code.
It also improves the output:
Now the initial result is referred to from the perspective of
the query site, rather than from the perspective of the package
containing the query object, which seems more natural.
This work supported by Sourcegraph.
Change-Id: Ie7a77d39dd6568334e72d894dc66d35494ed4ac4
Reviewed-on: https://go-review.googlesource.com/108936
Reviewed-by: Alan Donovan <adonovan@google.com>
This change parallelizes the outer loop in globalReferrersPkgLevel,
which loops over packages to inspect.
There is also an easily parallelizable inner loop.
However, parallelizing it adds complication
(deffiles needs a mutex, inQueryPackage requires a wait group)
and offers only a 2% speed-up.
Benchmarks for this change, looking for encoding/json.MarshalIndent:
name old time/op new time/op delta
Referrers 5.31s ± 2% 4.67s ± 3% -11.95% (p=0.000 n=10+10)
name old user-time/op new user-time/op delta
Referrers 15.9s ± 2% 16.5s ± 3% +3.71% (p=0.000 n=10+10)
name old sys-time/op new sys-time/op delta
Referrers 15.7s ± 3% 16.1s ± 3% +2.73% (p=0.011 n=10+10)
Fixesgolang/go#24272
Updates golang/go#25017
This work supported by Sourcegraph.
Change-Id: I5dcda9017103cdff59d0ffdf5e87d2c2c955a33a
Reviewed-on: https://go-review.googlesource.com/108878
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Global, package-level queries can be done without typechecking.
This makes it significantly cheaper.
Instead of typechecking, consider all packages that directly
import the query package. In each of those packages, filter out:
* files that don't contain the query name
* files that don't import the query package
Fully parse the remaining files and look for selector expressions
matching the query package and name.
There are a few twists (dot imports, the query package, xtests).
They are described, along with how they are handled,
in the large comment at the beginning of globalReferrersPkgLevel.
On my machine and GOPATH, this reduces typical time
needed to find referrers to encoding/json.MarshalIndent
from (roughly)
real 0m39.946s
user 2m27.844s
sys 0m54.774s
to (roughly)
real 0m5.687s
user 0m15.793s
sys 0m16.001s
The processing of packages could be parallelized;
that is left for a future change, to ease reviewing.
Benefits from that will be limited;
building the reverse import graph accounts for 73%
of the runtime, and that is dominated by syscalls.
Optimization idea from Alan Donovan.
This work supported by Sourcegraph.
Change-Id: Ib19e25fcdcb27673fb03d7300dba2a53198901ad
Reviewed-on: https://go-review.googlesource.com/97800
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
If test files are not included here,
then results in those files will be missing
for queries within a single package.
This work supported by Sourcegraph.
Change-Id: I8136ea250ba980179228d9b408d9e7409c49a873
Reviewed-on: https://go-review.googlesource.com/97799
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This make it possible to easily run individual guru tests.
It also slightly speeds up the overall test run,
from 23s to 18s on my machine;
the TestGuru/calls is now the limiting factor,
by a significant margin.
This work supported by Sourcegraph.
Change-Id: If61ebf1cc60441a65274f3fddd31f69c7ca23b48
Reviewed-on: https://go-review.googlesource.com/108876
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
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This regression is due to https://go-review.googlesource.com/c/go/+/100235
which made the go/scanner behavior match the compiler's scanner by
not modifying filenames in line directives in any form. Specifically,
relative filenames now remain relative. This makes it easier to reason
about the behavior of the scanner but may require clients to adjust
those filenames.
If removing the longer path in the .golden file is not satisfactory,
the (scanner) client may have to massage positions returned via line
directives; or better, the line directives are created with extended
path information.
R=adonovan
Change-Id: I836571a6dafef5e6d81e4c7add203c994e107055
Reviewed-on: https://go-review.googlesource.com/101015
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
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And avoid assumptions about the contents of the standard hash/fnv
package.
Change-Id: I10cc95ac6e3b482da5b027d68ff218d08f425e89
Reviewed-on: https://go-review.googlesource.com/40870
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Change-Id: Ia12ff7a0f6898f8d140565d255793904ce8585c4
Reviewed-on: https://go-review.googlesource.com/38754
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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The go1.9 type checker now returns fake packages in addition to an
error if the package was not found at all. This changes the behavior
of guru in a release-specific way, requiring the test to be split into
a common part and a go1.9-specific part.
In hindsight, perhaps it would have been better to place the
expectation in a comment alongside the query so that they can be
easily enabled or disabled together. (The downside of that design is
that you can't batch-update all the expectations to match the actual
behavior.)
Change-Id: I58054adec428fbab7fe3c57097aefc827f89a46e
Reviewed-on: https://go-review.googlesource.com/37865
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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CL golang.org/cl/37349 broke the tests, because the
golden files were not updated appropriately.
Change-Id: I9a2a56d1ca74b8bc77935aff26ed6297fbacf232
Reviewed-on: https://go-review.googlesource.com/37770
Reviewed-by: Dominik Honnef <dominik@honnef.co>
Run-TryBot: Dominik Honnef <dominik@honnef.co>
A 'what' query reports which other query modes are applicable to the
selected syntax. A 'whicherrs' query is similar to a 'pointsto'
query, so we enable it using the same criteria.
Fixes issue golang/go#18938
Change-Id: Iae062e0c933c7764bc335488adabf816d63ac837
Reviewed-on: https://go-review.googlesource.com/37349
Reviewed-by: Dominik Honnef <dominik@honnef.co>
Found with honnef.co/go/tools/cmd/unused.
Change-Id: Ied3a906269ca7782071428eeb1764b3b863576a2
Reviewed-on: https://go-review.googlesource.com/37600
Reviewed-by: Alan Donovan <adonovan@google.com>
Resolve symlinks in source directories (GOPATH, GOROOT, etc.) and source
files in order to find correct package. All I/O performed through
build.Context. Also add minor fix to guru unit tests in order to pass on
Windows.
Change-Id: Ie6134b9cd74eb7386e1d93603eb37c8e44b083b8
Reviewed-on: https://go-review.googlesource.com/33924
Reviewed-by: Alan Donovan <adonovan@google.com>
Add condition to prevent unit tests from checking cases with symlinks on
Windows and Plan 9.
Change-Id: Idc41db94a04a0daab556a26390db3f75ded7be73
Reviewed-on: https://go-review.googlesource.com/33923
Reviewed-by: Alan Donovan <adonovan@google.com>
Reason: ContainingPackage must do all I/O through build.Context.
This reverts commit c945ee3be4.
Change-Id: I625410bc754ea2d150be097bf424de2be42acde4
Reviewed-on: https://go-review.googlesource.com/33921
Reviewed-by: Alan Donovan <adonovan@google.com>
Restructure tests to account for possibility of being run on Windows
(which doesn't handle symlinks).
Change-Id: I428db26c9a1aad337d8972baa2b71468be3a2e58
Reviewed-on: https://go-review.googlesource.com/33920
Reviewed-by: Alan Donovan <adonovan@google.com>
Resolve symlinks in GOPATH or source file path in order to find correct package.
Fixesgolang/go#17515
Change-Id: Iaf7e85578fce040b329427ce6f51948a69e57a39
Reviewed-on: https://go-review.googlesource.com/33858
Reviewed-by: Alan Donovan <adonovan@google.com>
Add identical workaround from gorename to guru. Only affects queries
that typecheck the code first.
Fixesgolang/go#16530
Change-Id: I718cfceb8d26868eea9128c8873b164333c50f53
Reviewed-on: https://go-review.googlesource.com/33359
Reviewed-by: Alan Donovan <adonovan@google.com>
Also:
- always display the value of a constant expr, whether query expr is a
definition, a reference, or an alias.
- eliminate some go1.5 portability code.
- remove go1.8 fork of referrers; no changes are necessary
since I decided not to treat aliases specially.
- add tests.
Tested with Go 1.6, Go 1.7, and tip (Go 1.8).
Change-Id: I94624cff82f4d8c0dcbf12d11c8ce16e8168a7fe
Reviewed-on: https://go-review.googlesource.com/32730
Reviewed-by: Robert Griesemer <gri@golang.org>
Tim King
Russ Cox
Robert Findley
Zvonimir Pavlinovic
Robert Griesemer
phillc
Bryan C. Mills
Gordon Tyler
Rebecca Stambler
Iskander Sharipov
Dima
Koichi Shiraishi
Alan Donovan
Ian Lance Taylor
Brad Fitzpatrick
Andrew Bonventre
Josh Bleecher Snyder
Yasuhiro Matsumoto
David R. Jenni