Commit Graph

1201 Commits

Author SHA1 Message Date
Alan Donovan 942d58378d go/cfg: a syntactic control-flow graph (CFG)
This package defines a control-flow graph of Go statements and
expressions. It was originally built as part of cmd/vet (where
it was in turn derived from x/tools/go/ssa) and is being
published to make it available to other analyses.

Change-Id: Ib6077c5a856bb74d6a8411e9c3f9e2f79beb5658
Reviewed-on: https://go-review.googlesource.com/135636
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-09-26 00:57:46 +00:00
Alan Donovan 31d48d9a8c go/analysis: more API renamings:
Info -> TypesInfo
              Syntax -> Files
          Diagnostic -> Finding

Also, diagnostics are now reported by calling Pass.Report (or Reportf).

Change-Id: Id5e0745fca914699a6a64be3554049ffc02e822b
Reviewed-on: https://go-review.googlesource.com/137395
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-09-25 20:33:08 +00:00
Michael Matloob 0b24b358f4 go/packages: add missing test variants to fallback loader
For all packages p, q where there's an dependency path of
p.test -> ... -> q -> ... -> p, Go creates test variants
q [p.test] of each q and replaces the dependency on q with
a dependency on q [p.test], and replaces p with the expanded
test variant p[p.test]. Fix the fallback logic to add
these missing test variants. (Before this change, it was
only producing the variant of p: p [p.test].)

Fixes golang/go#27670

Change-Id: Ic56ba35fadcdf8c5928ec76f5a7b0ebe650c9f02
Reviewed-on: https://go-review.googlesource.com/136176
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-09-25 16:56:39 +00:00
Alan Donovan e2857128af go/analysis: several API renamings
Analysis -> Analyzer
                 Unit     -> Pass
                 Output   -> Result
                 Inputs   -> ResultOf
                 Lemma    -> Fact
 Set{Object,Package}Lemma -> Export{Object,Package}Fact
    {Object,Package}Lemma -> Import{Object,Package}Fact
               LemmaTypes -> UsesFacts bool
                 plugins/ -> passes/

Notes:
- Unit.Output is no longer a field; it's the result of calling Analyzer.Run.
- Because analyzers no longer declare their LemmaTypes, they, not the
  driver, are now responsible for registering Fact types with Gob.

A follow-up change will additionally rename:

                  Finding -> Report
              Pass.Syntax -> Pass.Files
                Pass.Info -> Pass.TypesInfo

Change-Id: Iccbdadbea5a0aafe732e23a344dd57fd93681931
Reviewed-on: https://go-review.googlesource.com/137095
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-09-25 16:28:27 +00:00
Bryan C. Mills dca76387a0 go/ssa/interp: skip failing test
This test introduces noise when using 'go test all' or 'go test ./...'
to test go/packages and the tools that depend on it.

Since it has been broken for around a month, skip it indefinitely.

Updates golang/go#27292

Change-Id: I796292310332712e14bc8a0b73e36a8ed6f8a73f
Reviewed-on: https://go-review.googlesource.com/137315
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-09-25 15:50:07 +00:00
Michael Matloob 90fa682c2a go/packages: generate test main files from the golist fallback
Part of the testmain generation logic (sans coverage) has been taken
from go build and put into golist_fallback_testmain.go.
golist_fallback invokes this logic and builds up the package metadata
for the testmain.
The tests checking for testmain are now no longer skipped from
packages_test.go.

Change-Id: I487a947f087f3ad4161ea6c2bed06ebb2f833422
Reviewed-on: https://go-review.googlesource.com/134119
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-09-17 22:19:12 +00:00
Alan Donovan 9f3b32b5c4 go/analysis: a new API for analysis tools
This CL contains just the API, the validate function,
and two example analyses, findcall and pkglemma.

Change-Id: Ia1f2652647050b1e0e15dad8b9ae10cf1a5fbdbc
Synopsis: go-review.googlesource.com/c/tools/+/134935
Design:   docs.google.com/document/d/1-azPLXaLgTCKeKDNg0HVMq2ovMlD-e7n1ZHzZVzOlJk
Reviewed-on: https://go-review.googlesource.com/135635
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-09-17 22:09:49 +00:00
Alan Donovan 02eab57fcf go/types/typeutil: add StaticCallee helper function
StaticCallee reports the destination of a CallExpr, if it is a static
call to a Go function or method.

StaticCallee is not a complicated function, but I wrote it four times
during the course of prototyping the analysis API in
go-review.googlesource.com/c/tools/+/134935.

Change-Id: Icd26fc1e5f6ed9edebd4d0a00fdf18aa0acb074c
Reviewed-on: https://go-review.googlesource.com/135676
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-09-17 22:04:51 +00:00
Alan Donovan 677d2ff680 go/ssa: use correct type for variadic parameter in wrapper methods
For some reason, the type of the last Param in a wrapper function
for a variadic method (T) f(...U) had type [][]U instead of []U.
(Possibly a workaround for a long-since fixed bug in go/types?)

Added a sanity check to ensure that the common suffix of
fn.Params and fn.Signature.Params match in type.

Fixes golang/go#27453

Change-Id: I9506f4f67a7ff3a283e9ec0142f638aad00287a9
Reviewed-on: https://go-review.googlesource.com/134515
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-09-11 13:30:44 +00:00
Koichi Shiraishi 18207bb12d go/packages: remove unnecessary newline on import section
Change-Id: I5d0019b76335460b35d4253f5c534810cc6bda77
Reviewed-on: https://go-review.googlesource.com/134335
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-09-10 18:00:08 +00:00
Michael Matloob 0aa4b8830f go/packages: remove the Config.Error hook
Errors relating to a particular package (as opposed to the Load
operation as a whole) are now only recorded in the Errors
field of the corresponding Package.
Clients are responsible for printing or otherwise handling errors.
This is a breaking API change.

The PrintErrors function prints all accumulated errors,
dependencies first, and is provided for convenience.

PrintErrors is based on Visit, another helper function, which
visits each Package in an import graph.

Also:
- add an Example documenting typical use.
- update clients to handle errors explicitly.

Depends on https://go-review.googlesource.com/c/tools/+/130576

Change-Id: I39407ab7f46dae2f0dd0fdde21080e172e1258aa
Reviewed-on: https://go-review.googlesource.com/131015
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-09-04 20:52:37 +00:00
Michael Matloob 18b2bbde9d go/packages: fix incorrect x_test graph in fallback
This change fixes a bug that occured in the golist fallback logic when
an x_test package imported its own package under test. For a package
"a", if "a_test" imported "a", we'd populate "a_test"'s import map
with an entry "a [a.test]" pointing to the test variant of the package
with id "a [a.test]". This change fixes the key to be "a", the correct
import path of the package, not "a [a.test], which is the ID".

Change-Id: If798f2675b01aa537c6ccc129dc35d042d967337
Reviewed-on: https://go-review.googlesource.com/133356
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-09-04 20:42:50 +00:00
Michael Matloob f1c1faf65a go/packages: coerce all errors to a single type
Rather than document the range of possible error types, requiring
clumsy client code to extract position information, we now expose a
single concrete type for all errors. Position information (in
standardized string form) is technically optional, but we should
strive for 100%, fixing gaps as they arise.

This change enables us to unify the Package and JSON structs in a
follow-up.

Question: should we eliminate the Config.Error hook and be silent by default?
Pro:
+ most clients suppress it.
Con:
- clients that want to print errors (e.g. vet-like tools) would have
  to traverse the entire import graph to find them.
- silence is not the most fail-safe behavior.

Change-Id: Ie92b9fb7641ceda429f00928474b650d1dfadedd
Reviewed-on: https://go-review.googlesource.com/130576
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-09-04 20:04:35 +00:00
Todd Neal 7ca1327549 go/packages: fix docs
Change-Id: Ife879995fd1a8f23821efefe6970a0e907f2fb12
Reviewed-on: https://go-review.googlesource.com/132600
Run-TryBot: Todd Neal <todd@tneal.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Kevin Burke <kev@inburke.com>
2018-08-31 21:12:45 +00:00
Brad Fitzpatrick 4426aff4d0 go/ssa/interp: disable regularly broken tests in short mode
Updates golang/go#27292

Change-Id: I845afc64ca9ed2065c3b5645b7ce6def290d7a6d
Reviewed-on: https://go-review.googlesource.com/131717
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-08-28 01:46:48 +00:00
Jay Conrod ff6c8c104a go/packages: initialize config.Env with os.Environ when unset
This makes Load use the value of GOPACKAGESDRIVER in the current
process's environment if the loader's environment wasn't explicitly
set.

Note that if GOPACKAGESDRIVER is not set, we'll still search PATH in
the current process, regardless of whether PATH is set in the loader's
environment. This has not changed.

Change-Id: I3081a6cb0876a21ccd4d87b4b8d082aa47911b75
Reviewed-on: https://go-review.googlesource.com/131016
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-23 20:10:42 +00:00
Alan Donovan 0bd7993ac0 go/ssa/interp: disable failing part of a test
The interpreter has no intrinsic for reflect.Value.MapRange,
so it no longer supports fmt.Sprint on a map, which uses it.
Suppressing part of complit.go test for now.

Change-Id: Id6ade19bdbb92593d6da57c82e75f311fb65b4fe
Reviewed-on: https://go-review.googlesource.com/131075
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-08-23 16:10:49 +00:00
Alan Donovan 447b503c8b go/packages: fix flaky TestJSON
Visit packages in deterministic order for predictable JSON.

(I don't know why the test only appears to fail on darwin;
I would expect it to randomly fail in linux 50% of the time.)

Change-Id: I5270804077fc9ca8f529a1f4657e1c35f0586579
Reviewed-on: https://go-review.googlesource.com/130755
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-22 15:05:42 +00:00
Jay Conrod 5fad05c818 go/packages: rename config.Flags to BuildFlags
This change adds the -buildflag argument to go/packages/gopackages,
which may be passed repeatedly to set config.BuildFlags. I felt -flag
was too vague.

config.Flags is renamed to config.BuildFlags for consistency, and
packages.findExternalDriver now passes -buildflag instead of -flag to
drivers. This will break existing drivers.

Change-Id: Iaed58026373a46e137a236ee9a652eb3a9433ee3
Reviewed-on: https://go-review.googlesource.com/130136
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-21 16:42:13 +00:00
Alan Donovan c1406c36ef go/packages: fix test failing on go1.10
The legacy implementation currently always loads from source code, so
packages are more complete than expected.

Change-Id: Ib8c9f7ac590038108dba05c1f47d22e70734945c
Reviewed-on: https://go-review.googlesource.com/130095
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-20 21:11:00 +00:00
Alan Donovan 7395529d16 go/packages: disable failing test on plan9
Updates golang/go#27100

Change-Id: I41528e3635a9d7a68c84c3f089a3b4634469830d
Reviewed-on: https://go-review.googlesource.com/129975
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-08-20 18:05:05 +00:00
Alan Donovan 7d1dc99761 go/packages: smooth API documentation for release
Change-Id: Ia3d06a320228831115eb0e0e99d45a84a812da03
Reviewed-on: https://go-review.googlesource.com/129636
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-08-17 17:07:05 +00:00
Ian Cottrell 641913b2bd go/packages: reduce the number of export data files loaded
In ModeTypes, we only need the roots, in ModeSyntax we need the direct
dependancies.
We now do exactly what we need rather than the entire set of transitive
dependancies.
Without this change tools operating on source of a deep dependancy tree are far
to slow.

Change-Id: I3ddbe660709184758ad33ab7cdea860244433ce6
Reviewed-on: https://go-review.googlesource.com/129355
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-17 16:41:42 +00:00
Ian Cottrell 1dfe8478fd go/packages: disable modules in all tests that set GOPATH
Change-Id: I940e3eebe2f2f5c3ab75b6961fc90ba7e26cdf56
Reviewed-on: https://go-review.googlesource.com/129496
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-16 15:27:21 +00:00
Alan Donovan 9de1900191 go/packages: opt: ignore function bodies in non-initial packages
This saves 35% of wall time in a command such as

 $ gopackages -mode=syntax golang.org/x/tools/go/packages/gopackages fmt

that would otherwise typecheck every function in each package that
depends on fmt. It also applies in -mode=types when source was loaded
as a fall back for missing export data due to an error in a lower package.

Also, remove Config.TypeChecker field now that not a single of its
subfields is passed through go/packages to the type checker.
(The Sizes function is logically a result, not an input, of loading,
though we have yet to implement it properly.)

Change-Id: I472d21b34fc5e2832f7353e82992a67a06e4e4cc
Reviewed-on: https://go-review.googlesource.com/129497
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-08-16 00:26:32 +00:00
Dominik Honnef a434f64ace go/pointer: support reflect.Value in AddExtendedQuery
We were calling types.Type.Underlying() too early, which caused CanPoint
to see an ordinary struct, not reflect.Value.

Change-Id: I23ba3b9451bc1abc1ad8a45c790d2e22c1481f26
Reviewed-on: https://go-review.googlesource.com/129196
Run-TryBot: Dominik Honnef <dominik@honnef.co>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-13 20:51:10 +00:00
Ian Cottrell 7883bde2a5 go/packages: minor fixes
This is fixes for review comments made on cl/128120

Change-Id: Ie6382d6ec91db2bbdece564a83ae028be4e2e269
Reviewed-on: https://go-review.googlesource.com/129000
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-10 19:50:59 +00:00
Suzy Mueller 69b93a3d4a go/packages: prefer import map to identity imports
For any identity imports to be added to the import map of a package,
make sure these are not already in there.  If the package imports "C",
be sure not to overwrite the import map entries for "runtime/cgo", "unsafe",
and "syscall".

Test the import map when test variants are loaded. This tests the fix
in 'go list' made by https://golang.org/cl/128836

Fixes golang/go#26847

Change-Id: I05dff4d3a75fab03f333f6d88128de6a6bf169e6
Reviewed-on: https://go-review.googlesource.com/128876
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-10 19:35:07 +00:00
Kazuhiro Sera 4354ead92e all: fix typos in comments
This pull request fixes several typos in comments. I believe that they're safe enough.

Change-Id: Ic7c594bdb89dcd04f8775f225abbc0f966f3728e
GitHub-Last-Rev: 2394feb263714c83b419f45eccb3c6c9fdff7fed
GitHub-Pull-Request: golang/tools#45
Reviewed-on: https://go-review.googlesource.com/128956
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-08-10 18:15:57 +00:00
Alan Donovan e96c4e2476 x/tools: remove old renaming imports of go/constant as exact
Fixes golang/go#26522

Change-Id: Ie8184a358f11bc7ad855e0eeb964c29848d2263e
Reviewed-on: https://go-review.googlesource.com/128998
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-10 17:04:37 +00:00
Rebecca Stambler 00d4fcd841 go/packages: remove dependency on imports
Copy imports.VendorlessPath into go/packages to avoid an unnecessary
dependency on imports.

Change-Id: Ie77c2fb87f2199f139ece9f3d1b707f065fc1a79
Reviewed-on: https://go-review.googlesource.com/128996
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-10 17:01:50 +00:00
Ian Cottrell af5e78811a go/packages: use Package as the raw form
This deletes the raw and golist packatges, instead using the main
Package structure as the serialzied form between the build tool and the
loader.
This requires a few new fields on Package for information that we used
to hide, and some extra json tags on Package.
It also required Package to have custom JSON marshalling methods.

Change-Id: Ib72171bc93e2b494b97f4b0266504acaa9b3f647
Reviewed-on: https://go-review.googlesource.com/128120
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-10 14:45:52 +00:00
Michael Matloob aaa76ee82d go/packages: cleanup style
This change addresses some style issues pointed out by rsc in
golang.org/cl/126177. It doesn't fix the comment on listfunc
or the comment on the processing of the containing directories.
Those will be handled in a separate cl.

Change-Id: I2094ad1e5e2ee181a646466675f4d993bd69ff9b
Reviewed-on: https://go-review.googlesource.com/128897
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-09 21:03:15 +00:00
Michael Matloob 0167fde410 go/packages: make corrections to fallback golist processing
This change addresses adonovan's comments in golang.org/cl/125939.
Make sure to include CXXFiles, MFiles, HFiles, FFiles, SwigFiles,
SwigCXXFiles, and SysoFiles from the go list output into the Package
struct's OtherFiles field.
When computing packages from the output of fallback golist,
make sure to create the test variant of a package whenever creating
an x_test for a package because the x_test always depends on
the test variant even when there are no non-x_test files.
Sort dependency packages from the fallback golist to ensure
output is deterministic.

Change-Id: I3a942898c7edbe0ad62dbdf3d521775ffd9b9594
Reviewed-on: https://go-review.googlesource.com/128838
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-09 18:57:07 +00:00
Alan Donovan 2e5c1e6f75 go/packages: make LoadFiles the zero mode
Also:
- make a nil *Config equivalent to new(Config).
- add a test for nil *Config.
- document that Load may return an empty list of packages.

Change-Id: I642133abe18553ca8c7f46b7bd2709a03eda0b28
Reviewed-on: https://go-review.googlesource.com/128875
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-09 18:40:53 +00:00
Suzy Mueller 2fda359797 go/packages: use export data to load types info
Use export data in LoadTypes mode, when it is available to get the type information.

The lock can be moved back to loadFromExportData, as each package is
loaded in topological order, and all calls to loadFromExportData for a
particular package occur when that package is being loaded.

Fixes golang/go#26834

Change-Id: Ib6c28eb8642a473cc100d54d0aac7b90644d5d22
Reviewed-on: https://go-review.googlesource.com/128365
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-09 18:26:40 +00:00
Dominik Honnef 2fad9c5652 go/ssa: emit position information for assignment operators
Fixes golang/go#26294

Change-Id: Ica2aa9787c58f703aa65786c2123a28b820af45d
Reviewed-on: https://go-review.googlesource.com/128776
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-09 14:07:54 +00:00
Alan Donovan 5b5e9c877a go/ssa: updates to support go/packages
Adds ssautil.Packages function, which creates ssa.Packages
from packages.Packages.

Deprecates testmain synthesis logic now that go/packages
reports the test packages synthesized by the build system
as first-class packages.

Updates docs, examples, and tests.

Flags potential confusion around legacy concept of "importable" packages.

Change-Id: I6d9cd7c6436c715d1ef39e3e280f4af4d48ccc5a
Reviewed-on: https://go-review.googlesource.com/128675
Reviewed-by: Dominik Honnef <dominik@honnef.co>
2018-08-08 20:03:34 +00:00
Michael Matloob 62181fabb0 go/internal/cgo: simplify names of ProcessCgoFiles and RunCgo
Also collect errors so we can set them on the Package (once
golang.org/cl/128120 is in).

Change-Id: I2950405404f060312813e4aa27393496078a3b7e
Reviewed-on: https://go-review.googlesource.com/128357
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-08 19:23:19 +00:00
Alan Donovan 201986631b go/packages: initialise Fset if mode >= Types
...as it is required not just for Syntax processing but also
when loading export data.

Clarify comments surrounding Types, Fset.
Remove bogus comment re: Dir.

Change-Id: I8d234bc311d73cbed4fd271ef883ebba22ba2708
Reviewed-on: https://go-review.googlesource.com/128595
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-08 18:17:01 +00:00
Suzy Mueller e832138124 go/packages: make cache names predictable in tests
Check for the go-build subdirectory to identify a filepath in the go
build cache.  The go command uses a subdirectory of the default os cache
called "go-build" for the build cache.

Additionally, this responds to the comments about function names and tests in the following
CLs:
https://golang.org/cl/125536
https://golang.org/cl/125302

Fixes https://github.com/golang/go/issues/26387

Change-Id: I4ec65822e1e178d3de215a773e42f09fcc5bdb0d
Reviewed-on: https://go-review.googlesource.com/128360
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-08 16:32:21 +00:00
Michael Matloob ca6481ae56 go/packages/golist: fix golist fallback selection
The fallback was being reset to the incorrect value
after it was set. This change fixes it.

Also add a test that triggers the fallback (a query with both
a contains: line and a regular package path).

Change-Id: I49a9aeb3a0c7d7cc308ac56f4985545315a5bfd2
Reviewed-on: https://go-review.googlesource.com/128356
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-08-07 20:59:40 +00:00
Ian Cottrell 3c07937fe1 go/packages: enable an external source of package information
This allows an external binary (not go list) to be the source of package
information.
It uses a binary called gopackagesraw if present in the PATH.
The binary can be overriden by specifying the GOPACKAGESRAW
environment variable.
The command must accept the -test -deps -export and -flags, and take a
list of package patterns to match. It then returns a raw.Results followed by
the matching raw.Package structs in json format on stdout.

Change-Id: I836014d837a284999ded0c1157b8e6dac058ba69
Reviewed-on: https://go-review.googlesource.com/125938
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-03 18:01:56 +00:00
Michael Matloob 1f25352b1e go/packages: add cgo support to go1.10 fallback loader
This change moves the cgo support for go loader to a common
internal package that can be reused by go/packages. That
support is used to invoke cgo to process the files returned
by the fallback pre-go1.11 Go list.

The cgo processing does not propagate all of the config correctly.
We're building a go/build.Package to get the cgo command line
invocation and it might be incorrectly configured if the user's
configuration is different from go/build.Default.

Change-Id: I0de3c65cb723587e1551edeb77219614ba9650bf
Reviewed-on: https://go-review.googlesource.com/127816
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-08-03 18:01:09 +00:00
Michael Matloob 82515cf895 go/packages: fix race detected by race detector
Diamonds in the dependency graph could cause the same package
to be processed by two separate gorotines, causing a potential
race between checking if the package's Types field is set, and
setting the field.

adonovan's comment suggested this might be unnecessary. We'll
ask him about this once he returns from his vacation.

Change-Id: I27511b6e44bb1b6a04ea294206fd8ed4ea60f56f
Reviewed-on: https://go-review.googlesource.com/127636
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-02 19:53:59 +00:00
Michael Matloob 4a42e0a488 go/packages/golist: pass in -compiled to go list
This is mostly straightforward, except that go list -e -compiled
will now return errors if a package can't build. This is a bug.
We need to skip the errors test until that's fixed.

For now, don't try to run go list with no arguments because it will
fail. So when all arguments are contains, we will check for empty
patterns and skip running go list.

Change-Id: I7c92b1bf9448e5dbea22f9ade9fb9429945e3719
Reviewed-on: https://go-review.googlesource.com/127339
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-08-02 18:51:39 +00:00
Suzy Mueller 78b3e71765 go/packages: include test deps in golist fallback
In Go 1.10 and earlier, the Deps field returned by go list does not
include the dependencies of any test files.  To get the dependencies
of the test packages, we need to run go list another time (for a total
of 3 calls to go list), to get the dependencies of the packages the
tests import.

Fixes golang/go#26753

Change-Id: Id3b424ac935e5ed459b4d4a55630715171bb9710
Reviewed-on: https://go-review.googlesource.com/127457
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-02 17:10:33 +00:00
Ian Cottrell 681bc0c94c go/packages: fix the documentation
It got out of sync after the round of API design changes, this brings it
back in line.
Also fix the behavior of passing nil as the config to match the
expected/documented behavior.

Change-Id: I8b51f5bd29ef9338ddb920fb872d857f180f9c84
Reviewed-on: https://go-review.googlesource.com/127255
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-02 15:09:54 +00:00
Michael Matloob 1801cb7c15 go/packages/golist: remove -cgo flag from go list invocation
It's been removed from go list.

Change-Id: I45b496bb6b693462484b1089cdb89c4e19e35b2e
Reviewed-on: https://go-review.googlesource.com/127341
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-08-01 20:59:36 +00:00
Ian Cottrell 8149a73649 go/packages: extract the raw API to its own package
We want to make it public to enable external sources of information
(other than go list), but we don't want to clutter the main
go/packages API with things that are intended for implementers only.
We also want to move the two API's from experimental to stable at
different times.
We also need to split the API because the golist implementation has to depend on
the raw structs, and then the main packages.Load has to depend on the golist
implementation.

The golist functionality is now in it's own package, and provides a Load method
to return the raw structures. This can be re-used by more complex raw providers.

Change-Id: I767af216b0d1ad9391e613cbf24eb2db5f503369
Reviewed-on: https://go-review.googlesource.com/126718
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-01 17:44:00 +00:00
Ian Cottrell 7ebc57ba19 go/packages: remove DepOnly from the raw package
All the other members of raw package are stable for any given package,
DepOnly relates to the query patterns, not thepackages.
Instead the raw functions now return the set of roots matched

Other minor changes included:
rawConfig.ExtraFlags -> rawConfig.Flags
delete rawConfig.Context

Change-Id: I3a729fa4557043f65da386eed94ab46fdfacb8ad
Reviewed-on: https://go-review.googlesource.com/127035
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-08-01 17:19:07 +00:00
Ian Cottrell 33176b2029 go/packages: make a test Errorf into Fatalf
It is a bounds check on an array before an access, the test cannot
continue safely if it fails, so it should be fatal.

Change-Id: Icd081df9cb81d549519d69bd34739d950946ccf5
Reviewed-on: https://go-review.googlesource.com/126975
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-31 19:12:26 +00:00
Ian Cottrell ade7853a2a go/packages: allow Load to use source if no export data is possible
We ask the underlying tool to produce export data if needed, but if it
cant we should fall back to source rather than just failing.

Change-Id: I376d41b4c8ad4d3c1aef3ca4ab4e3d0466b83b56
Reviewed-on: https://go-review.googlesource.com/126875
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-31 16:59:11 +00:00
Ian Cottrell cfaff8d5db go/packages: fix tests for new go list behaviour
go list has been changed so that when -tests is added it reports the
test packages as well as the test mains in the initial set.
This fixes all the tests that assumed the old behaviour.
I changed the test that checked the initial set to check the entire
graph because the comparison became unreadable with the expanded set,
and this seemd like a nicer standardised way to check the behaviour.

Change-Id: I69404f8ef77cd092b0f02011a7789db71bee9b47
Reviewed-on: https://go-review.googlesource.com/126796
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-31 16:04:58 +00:00
Suzy Mueller 8cc4e8a6f4 go/packages: add Flags to Config
Add the Flags field to the Config struct in packages to provide a way
for users to pass along additional information to the underlying query
tool.

Since users that need Flags will already know something about the build
system they are using (and flags will vary depending on the underlying
build system), they can pass through the flags that they need for that
build system.

For example, build tags should be passed through using the Flags field in go build,
using "-tags=".

Change-Id: Ia65bf0d003db2f6d9aaad6cd09c602f4bc5bf3e3
Reviewed-on: https://go-review.googlesource.com/125302
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-07-27 19:51:41 +00:00
Michael Matloob 9dbe528bbb go/packages: add support for 'contains:' words
If a 'word' provided to go/packages' Load function starts with contains,
go/packages will interpret that word as the package containing the given
file.

For example:
   packages.Load(config, "contains:/usr/local/go/src/fmt/format.go")
would load the fmt package from the Go installation at /usr/local/go.

This implementation uses "go list ." in the directory the file is
contained in to find the package, but this won't work in the module
cache. We plan to add support to go list directly to help find the
containing package. Then, because we won't need to change directory,
go list will have knowledge of the correct vgo root module, and will
be able to surface correct results.

Change-Id: I6bff62447c12f13dae5e4c0c65f729d9f271c388
Reviewed-on: https://go-review.googlesource.com/126177
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-07-27 19:42:20 +00:00
Suzy Mueller 0bf5a32247 go/packages: add tests for vendoring
Test that the import graph for packages in the GOPATH that use vendoring
are correct and are keyed by the import path as it appears in the source
file.

Change-Id: Ibf9a516b4bfcc9f2d45f349d2ae49a0dbf958e30
Reviewed-on: https://go-review.googlesource.com/125298
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-07-26 17:31:39 +00:00
Suzy Mueller 54429628ee go/packages: test absolute filepaths
Paths to files in a Package should exist and be absolute.

Check that both GoFiles and OtherFiles are absolute paths.

Change-Id: I381830425ef313a91fa49be4d1751631d0a3a0c8
Reviewed-on: https://go-review.googlesource.com/125536
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-26 17:13:15 +00:00
Suzy Mueller 83365fc83f go/packages: fix bug preventing build
Change-Id: Ia5bc184c3762dc00338bfad182371568827da75e
Reviewed-on: https://go-review.googlesource.com/126095
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-26 17:03:46 +00:00
Michael Matloob ceb18cec46 go/packages: switch fallback implementation to use go list
The go/loader based implementation was too different. Instead
Just call go list twice to get all the dependencies. This immediately
enables more functionality.

Change-Id: I22883492e996133bc61664314318c5e0a9cc10dc
Reviewed-on: https://go-review.googlesource.com/125939
Reviewed-by: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-07-26 16:53:35 +00:00
Ian Cottrell 475b7a1e12 go/packages: fix the gopackages command
It got broken when we renamed all the modes, and because it is just an
example binary it is not testsed.

Change-Id: Ia6608af574d0abebb4fe0d967e1bed88af6563bd
Reviewed-on: https://go-review.googlesource.com/125937
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-25 23:55:34 +00:00
Ian Cottrell b1e4acd68a go/packages: alter the internal api to go list
This separates the go list specific behavior from the generalised go/packages
loading behaviour, to enable alternate build system back ends.

Change-Id: I07e7649f8f2afc7470a3ee3d0d743cbbcc6f713e
Reviewed-on: https://go-review.googlesource.com/125715
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-25 20:44:53 +00:00
Ian Cottrell 14e571052b go/packages: fix internal go list function signatures
After a discussion in cl/125535 this is a proposal to clean up some
internal function signatures that were becomming unwieldy.

Change-Id: I37a9e525ab18dface9ea9fb0b0ec68ac942ee632
Reviewed-on: https://go-review.googlesource.com/125659
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-25 19:03:22 +00:00
Michael Matloob 526516e9c4 go/packages: support pre go1.10.4 using go/loader
If go list fails because it doesn't support the new flags added
for Go 1.11 (which will be also released in Go 1.10.4) try again
using the Loader to approximate the packages requested.

This implementation is incomplete. It will never support test packages
because of the two phase test loading process of the Loader. It
also doesn't reliably have access to export data so it will
always do an upgraded whole-program query. But we'll try to get
the best level of support we can for the go/packages interface
given the limitations of the loader.

Once Go 1.12 is released, we'll delete this support. By then, most
Go users should have at least switched to Go 1.10.4.

Change-Id: I5248e20980032695a86b052caa9ff368ecf7b142
Reviewed-on: https://go-review.googlesource.com/125616
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2018-07-25 00:20:46 +00:00
Ian Cottrell 214274eeeb go/packages: changes to the API per CL 125305
Collapse the main entry points to the single Load function.
Make public the Mode enumeration in the Config.
Add a lowest level mode that does not do the import graph.
Remove PkgPath.
Remove the DisableCgo option.
Rename some fields of Package:
  Srcs -> GoFiles
  OtherSrcs -> OtherFiles
  Type -> Types
  Files -> Syntax
  Info -> TypesInfo
delete the All function

Change-Id: I54e5dc3ca5cb0b7e33fe6aa6f70cc66e18ea8cac
Reviewed-on: https://go-review.googlesource.com/125535
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-25 00:10:29 +00:00
Ian Cottrell ded554d068 go/packages: splitting the scratch fields out of Package
This makes Package a struct we can re-use in other places/algorithms.

Change-Id: I2e095a624bf44223319ba1ea3d60deb727b38f81
Reviewed-on: https://go-review.googlesource.com/124855
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-23 20:42:46 +00:00
Russ Cox 96ee42108a go/packages: revise documentation
I made a pass through the documentation trying to simplify
and make it more accessible to readers who are unfamiliar
with all the ins and outs of the implementation.

I also added TODOs about things I don't understand
and names that we should think about changing.

Change-Id: I633316bd407f3360eb8a683bc8d85fba93ca381e
Reviewed-on: https://go-review.googlesource.com/125305
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-23 18:30:23 +00:00
Michael Matloob 54f9f5980a go/packages: remove Package.IsTest field
We have not yet settled on the meaning of Package.IsTest, and more
deeply which packages are test and which are non test packages.

This change will remove Package.IsTest in the meantime to avoid
confusion. We may later add a boolean or some other way to distinguish
test and non-test packages.

Change-Id: If6b128f7914009fdd42b8bc3de3bff73c8f006cd
Reviewed-on: https://go-review.googlesource.com/124388
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-19 17:37:31 +00:00
Michael Matloob d74aaa1f57 go/packages: Options.{Dir,Env} pass-through
This change adds optional Dir string and Env []string options
that are passed through to the build system's metadata query.
As with exec.Cmd, the defaults are inherited from the parent
process.

Options.GOPATH is gone. If the client needs to override
GOPATH, they must use Env, but typically the inherited environment
is correct.

The tests not longer use os.Chdir.

We now guarantee that Package.Srcs are absolute file names.

Added test for Options.Dir and relative patterns.

This is a copy of golang.org/cl/123777, which had a merge conflict.

Change-Id: I301724581f3d8c712ea78fa5ab5cabd909940dca
Reviewed-on: https://go-review.googlesource.com/123777
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-17 15:06:01 +00:00
Brad Fitzpatrick fd2d2c45eb go/packages: fix/skip some tests making build.golang.org red
Updates golang/go#26387

Change-Id: I5d91f3747b4f17186813d830f24aa510f5cf0060
Reviewed-on: https://go-review.googlesource.com/123957
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-07-14 20:55:45 +00:00
Alan Donovan 18e9dfbf20 go/packages: add Option.Tests bool, which affects pattern expansion
In the go build system, test packages and executables do not have a
name distinct from the package under test; they are implied, so
"go test fmt" means build those packages but "go build fmt" does not.

This change adds a Tests boolean option to indicate that implied
tests are desired during pattern expansion.
It has no effect on build systems that have explicit names
for tests, such as Blaze/Bazel.

The gopackages diagnostic tool now has a -test flag.

Change-Id: I424f343958c4286539e518d5f30067da19a57f3b
Reviewed-on: https://go-review.googlesource.com/123775
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-13 17:38:36 +00:00
Alan Donovan 9d3ae49c73 go/packages: report a distinguished ErrGoTooOld error for older go commands
We should add support for older go commands using the multiple-calls
approach of earlier drafts of go/packages.

Also, tag tests for go1.11 to make 1.10 builder happy.

Change-Id: Ia04979528af25cbcd4b4fa5b21cb91d014d530c1
Reviewed-on: https://go-review.googlesource.com/123756
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-13 17:38:21 +00:00
Alan Donovan 2087f8c107 go/packages: remove POSIX filename assumption from test
Change-Id: If1aac9f109b05897b21a2f27a4050fbee2cc2d2e
Reviewed-on: https://go-review.googlesource.com/123357
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-11 20:34:38 +00:00
Alan Donovan 9622293277 go/packages: a new Go package loader for go, vgo and other build systems
This package defines a new API for applications that need information
about Go packages, such as their source files, tests, dependencies,
and (optionally) typed syntax trees. It is intended to replace both
go/build and golang.org/x/tools/go/loader with an API that is simpler
yet supports a range of build systems including 'go build', vgo,
Bazel, and Blaze.

This CL contains the API, the "go list"-based implementation, and some
basic tests. More tests, more features as described in doc.go, and
implementations for bazel and blaze will follow.

Read doc.go for orientation and a list of open questions.

Change-Id: Ib39f15b5e4e2f854553e7185fec5cf135641ffb0
Reviewed-on: https://go-review.googlesource.com/116359
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2018-07-11 20:11:18 +00:00
LE Manh Cuong 8cb83b71b4 imports: fix lost line between package and import statement
Fixes golang/go#26290

Change-Id: Ide797a46bf1d0d6070940fb5b9db3e76502bc528
Reviewed-on: https://go-review.googlesource.com/122736
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-10 02:38:27 +00:00
Alan Donovan 16699b2d33 go/gcexportdata: add -package flag to diagnostic tool
...to show information about indirectly mentioned packages.

Change-Id: Ib74b56493861bf41d9720760e76ace186efae2ea
Reviewed-on: https://go-review.googlesource.com/121195
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-27 17:17:06 +00:00
Robert Griesemer 56e9b8e653 go/internal/gcimporter,gccgoimporter: use types.NewInterfaceType
https://go-review.googlesource.com/c/go/+/120875 changed the name
of types.NewInterface2 to NewInterfaceType. Adjust x/tools code to
match new API.

For golang/go#25301.

Change-Id: I21e13566f7c88591a16ce461cb4cce8901980b05
Reviewed-on: https://go-review.googlesource.com/120895
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-26 17:42:40 +00:00
Austin Clements 25b95b4822 go/ssa: fix some incorrect comments
Change-Id: I8aa4780e0fa4a182678f1d34b247ab203e906144
Reviewed-on: https://go-review.googlesource.com/119915
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-06-20 14:00:53 +00:00
David Symonds fcb3cb6c24 go/vcs: match go-import package prefixes by slash
This is related to golang/go#15947.

This ports https://golang.org/cl/23732 (June 2016)
from cmd/go to this repository.

Change-Id: I9960556bd19775b433d4eecc0ecca3f09ce1368b
Reviewed-on: https://go-review.googlesource.com/119935
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-20 03:09:55 +00:00
Robert Griesemer c995a08888 go/internal/gcimporter: move 1.11 specific tests out of non-1.11 builds (fix build)
TBR=adonovan

The tests TestImportedTypes and TestIssue25301 are dependent on many
1.11-specific bug fixes that went into go/types. Just move them out
of non-1.11 builds.

While doing so, also extended the set of test cases run by
TestImportedTypes (now matching the corresponding tests cases
in the std lib).

This also makes it again unnecessary to factor out the embeddedType
function into build-specific versions. Removed again.

For https://github.com/golang/lint/issues/402.

Change-Id: I45eb8c3d1dcca7b392f14a7660bc1599a44a0d41
Reviewed-on: https://go-review.googlesource.com/118567
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-06-13 19:12:07 +00:00
Robert Griesemer e580e344d4 go/internal/gcimporter: don't use Interface.EmbeddedType for builds before go1.11
For https://github.com/golang/lint/issues/402.

Change-Id: I3f4eab123e52460980e76f5ffaca3a77a3af7374
Reviewed-on: https://go-review.googlesource.com/118565
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-06-13 18:37:28 +00:00
Robert Griesemer 6f857df7d4 go/internal/gccgoimporter: use types.NewInterface (not NewInterface2) for builds before Go 1.11
For https://github.com/golang/lint/issues/402.

Change-Id: I06d944aaa168fb595ff96eb27a7d6e7da344ebd6
Reviewed-on: https://go-review.googlesource.com/118564
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-06-13 18:13:43 +00:00
Robert Griesemer 9d855108b0 go/internal/gcimporter: missed a NewInterface2 call in prior CL
For https://github.com/golang/lint/issues/402.

Change-Id: Ideaac18b4f0be1674bb07010840b3d10e6ebe9d6
Reviewed-on: https://go-review.googlesource.com/118639
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-06-13 18:12:16 +00:00
Robert Griesemer 58c6d92c35 go/internal/gcimporter: use types.NewInterface (not NewInterface2) for builds before Go 1.11
For https://github.com/golang/lint/issues/402.

Change-Id: If8802c93679af57bcb50c43f386f37458813d910
Reviewed-on: https://go-review.googlesource.com/118563
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-13 17:48:59 +00:00
Robert Griesemer 9a70f1fcbf go/internal/gcimporter, gccgoimporter: updated to match latest version in std lib
This CL brings over the changes from:

https://go-review.googlesource.com/118496 (better error message when importer is out of date)
https://go-review.googlesource.com/114317 (permit embedding of non-defined interfaces via alias type names)
https://go-review.googlesource.com/85318  (use named receiver types for methods of named interfaces)
https://go-review.googlesource.com/42870  (report import path if package is not found)
https://go-review.googlesource.com/41710  (version tests for 1.8, v4 and v5)

Also updated go/gcexportdata to select between binary and new indexed export format.

For golang/go#25856.
For golang/go#25301.
For golang/go#20230.
For golang/go#13829.

Change-Id: Ibf77c50f86e767cef411bd1d3809e12397678958
Reviewed-on: https://go-review.googlesource.com/118555
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-06-13 15:25:57 +00:00
Ian Lance Taylor c65208ee29 go/...: make most tests pass with gccgo
There is one non-test change: have FakeContext change the compiler to
"gc", as callers expect to be accessing a gc-style GOROOT.

The go/pointer, go/ssa, and go/ssa/interp tests still fail with gccgo.

Change-Id: I850c9618401f6b9e63d7ca7196f91931b03f1524
Reviewed-on: https://go-review.googlesource.com/117395
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-08 16:58:49 +00:00
Andrew Gerrand 28aef64757 go/internal/gcimporter: return error from BExportData
This change adds an error return value to BExportData and replaces the
various calls to log.Fatal within that library with panics that
propagate the internal error up the call stack to BExportData which
recovers and returns the error.

Fixes golang/go#25431

Change-Id: Id628c63a04145bb469bd6fbc7fbab1b0fa291b2c
Reviewed-on: https://go-review.googlesource.com/113457
Reviewed-by: David Symonds <dsymonds@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-05-17 02:09:35 +00:00
Rebecca Stambler 6e0e2181b9 go/internal/gcimporter: support indexed export data
Support indexed export data in the x/tools gcimporter. Fixes tests with
tip.

This is just a copy of the bimport.go and iimport.go files in the
standard library gcimporter package, including some minor fixes to the
existing bimport.go. The iexport logic in x/tools still needs to be
updated.

Fixes golang/go#25052

Change-Id: I2858e5c0853735c904f32b7b27c1c288a9e62e88
Reviewed-on: https://go-review.googlesource.com/109595
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2018-04-26 19:07:32 +00:00
Tobias Klauser ccd319aab1 go/ssa/interp: add internal/syscall/unix.syscall_fcntl to fix tests
CL 100077 added the syscall_fcntl function in the internal/syscall/unix
package to refer to syscall.fcntl outside of the syscall package in a
unified way.

Add a replacement that simulates a successful fcntl call to fix the
interp tests.

Change-Id: I05847d222f18a19cb30f1395497e708a027a002e
Reviewed-on: https://go-review.googlesource.com/106415
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-11 19:48:31 +00:00
Matthew Dempsky 5dfd8930f2 go/internal/gcimporter: rename from go/gcimporter15
Follow through on promise to remove the old API.

Change-Id: If1f5addfeb1b82acc5a1730474e2f06102dbb615
Reviewed-on: https://go-review.googlesource.com/105977
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-04-10 13:03:03 +00:00
Matthew Dempsky 14d5b80f95 go/gcimporter15: support bimport format v6
Format change introduced by golang.org/cl/105038.

Change-Id: I76eefe9ce7f52743cb5cdcfe77e5ee0b5eb8743f
Reviewed-on: https://go-review.googlesource.com/105976
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-09 23:44:46 +00:00
Dmitri Shuralyov 9f6d4ad827 go/buildutil: use build.Import to find GOPATH containing x/tools
Previously, the test assumed that golang.org/x/tools was always in the
first GOPATH workspace. It may not be. Find it dynamically instead.

Fixes golang/go#19400.

Change-Id: I9c75d5ff1409aebd403d7ad4314b496fe1a04140
Reviewed-on: https://go-review.googlesource.com/94900
Run-TryBot: Dmitri Shuralyov <dmitri@shuralyov.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-03-05 17:28:52 +00:00
Dmitri Shuralyov e8fdd2090a go/vcs: fix command injection in VCS path
Apply same change as CL 94656 did for cmd/go/internal/get, but for
golang.org/x/tools/go/vcs, to help keep them in sync.

It indirectly includes changes from CL 94603, since CL 94656 was
rebased on top of CL 94603.

Updates golang/go#23867.
Helps golang/go#11490.

Change-Id: I33eca1aba19f47bbe3e83d4ef9f9cc9a9c9ae975
Reviewed-on: https://go-review.googlesource.com/94899
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-02-21 04:00:24 +00:00
Alan Donovan 2c62430689 go/callgraph/cha: fix bug computing correspondence of abstract/concrete methods
In a dynamic interface method call x.f() where x has type I, it is not sound
to assume that the receiver of the types.Signature for types.Func f has type I, as
Func objects for abstract methods may be shared by multiple interfaces.

Fixes golang/go#23925

Change-Id: I755e3010d1310480c46855e072946346626b3e59
Reviewed-on: https://go-review.googlesource.com/95697
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-02-21 01:23:17 +00:00
Dmitri Shuralyov a4ae709237 go/vcs: add package comment
According to https://golang.org/doc/effective_go.html#commentary,
"Every package should have a package comment."

Updates golang/go#11490.

GitHub-Last-Rev: 8dd80d0f1cbd94ab14dbfdbf0199ca199f33e1fd
GitHub-Pull-Request: golang/tools#22
Change-Id: Ia3af83cc68bcde12c37492ad240031aecf6934a3
Reviewed-on: https://go-review.googlesource.com/93081
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-02-14 20:11:16 +00:00
Daniel Martí 90b807ada4 all: fix a few issues found by unparam
In cmd/present, a mode was being passed to the function parse, but it
wasn't actually being used. Use it.

In go/ssa, checkFinalInstr received an idx integer but it doesn't
actually need it. Get rid of it.

Lastly, in imports, findImportStdlib always returned rename==false. Get
rid of that result parameter.

Change-Id: I719006b69ee80a3ef4b0ea24c1c206016a7e304b
Reviewed-on: https://go-review.googlesource.com/93596
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-02-13 22:52:51 +00:00
Alan Donovan a5d79d28aa go/...: fix/disable broken tests
gp/ssa: add {Start,Stop}TestLog methods to synthesized test main package.

go/ssa/interp: add (not thread-safe) intrinsics for atomic.Value,
which are now used by Getenv.

go/pointer: disable test of callbacks from runtime timers
as the analysis's intrinsics are out of date.  Also fix 3 typos.

Change-Id: I25f95ba18986727275a730b465e7fd23c08b2af2
Reviewed-on: https://go-review.googlesource.com/88055
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-01-17 18:00:52 +00:00
Robert Griesemer fbec762f83 go/internal/gccgoimporter: parse optional escape info in export data
This is a copy of https://go-review.googlesource.com/c/go/+/86977
and brings those changes into the x/tools repo.

It also includes a minor change to parser.go that was done via
https://go-review.googlesource.com/37839 but that wasn't brought
over.

For golang/go#23324.

Change-Id: I84b7cf134fec250ac340e404802158860cb3c630
Reviewed-on: https://go-review.googlesource.com/87295
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-11 04:04:09 +00:00
Brad Fitzpatrick ef037a11d2 go/ssa/interp: skip tests on darwin until crashes are fixed
Updates golang/go#23166

Change-Id: Ie9db70d6f2f8d90817ec3de35e6ca51ec476f949
Reviewed-on: https://go-review.googlesource.com/85995
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-01-03 17:43:40 +00:00
Michael Hudson-Doyle 894cde2672 go/ssa/interp: add intrinsic for math.hasVectorFaciliy to fix tests on s390x
Change-Id: I482924585d2d74a25bf88169900a8788b5333738
Reviewed-on: https://go-review.googlesource.com/85235
Reviewed-by: Michael Munday <mike.munday@ibm.com>
Run-TryBot: Michael Munday <mike.munday@ibm.com>
2018-01-02 20:34:48 +00:00
Kashav Madan f271d7a0f8 go/pointer: fix typo ("distiction" -> "distinction")
Change-Id: I88334b30b08e110b837c255220385c9c4cd4a823
Reviewed-on: https://go-review.googlesource.com/85576
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2017-12-28 08:16:41 +00:00
Robert Griesemer 04447353bc go/ssa: complete interface types for correct string form (fix build)
Fixes golang/go#22933.

Change-Id: I0cf0aab8b77114ee7eb1e181aee2c5b75087aa83
Reviewed-on: https://go-review.googlesource.com/80897
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-11-30 18:55:14 +00:00
Alan Donovan 2c687adedb go/ssa/interp: drop interpretation of "testing" package
The "testing" package depends on low-level details that change too often.

Change-Id: I59101e16588296cb40c851d4a34ddf199f4d176c
Reviewed-on: https://go-review.googlesource.com/80376
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-11-28 21:57:06 +00:00
Alan Donovan 0e42b0fe40 go/ssa/interp: add fake runtime.callerName to fix broken tests
We are inching towards the point at which I blow away this entire
package, or at least all tests that interpret the standard "testing"
package.

Change-Id: I06d99aac6d7baab14ee6c6a61afe0af34b814767
Reviewed-on: https://go-review.googlesource.com/80356
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-11-28 20:52:38 +00:00
Robert Griesemer 6d70fb2e85 go/ast/astutil: add Apply, for rewriting Go ASTs
This change implements an AST walker, Apply, with the capability
to perform various actions (including rewrites) during the AST
walk, in pre- and post-iteration order.

Ideally we would like to have this functionality in the std lib
(go/ast), but as this change contains significant new API, it
is better to first gain some experience with it in x/tools.

Credits: This is joint work of Josh Bleecher Snyder, Roger
Peppe, and myself (author of this CL). The code is based on
proposal golang/go#17108 which I had started, together with an
initial implementation. It was then reworked significantly by
Josh in golang.org/cl/55790, further refined by suggestions
from Roger (allocation reduction), and finally cleaned up a bit
by me (AST simplifications).

Fixes golang/go#17108.

Change-Id: I56d56b7f2bc5be2acfeb927f76aea7f264bb7b94
Reviewed-on: https://go-review.googlesource.com/77811
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-11-16 01:30:56 +00:00
Dmitri Shuralyov ebae2dcdba go/vcs: reject update of VCS inside VCS
Manually apply same change as CL 68110 did for cmd/go/internal/get,
but for golang.org/x/tools/go/vcs, to help keep them in sync.

Updates golang/go#22125.
Helps golang/go#11490.

Change-Id: I255f7a494d9572389fc8dc8ce96891b6fcc214a0
Reviewed-on: https://go-review.googlesource.com/68352
Reviewed-by: Russ Cox <rsc@golang.org>
2017-10-05 08:21:07 +00:00
haya14busa 84a35ef54d go/ast/astutil: new third-party imports shouldn't go in the std group
Before this change, astutil would only do a prefix match of a new import
with all the existing ones, to try to place it in the correct group. If
none was found, the new import would be placed at the beginning of the
first import group.

This works well for new std imports, but it doesn't work well for new
third-party packages that don't share any prefix with any of the
existing imports.

Example:

	import (
		"time"

		"github.com/golang/snappy"
	)

When adding "golang.org/x/sys/unix" with astutil.AddImport, the import
is inserted as follows:

	import (
		"golang.org/x/sys/unix"
		"time"

		"github.com/golang/snappy"
	)

And goimports reorganizes the imports to separate std and third-party
packages:

	import (
		"time"

		"golang.org/x/sys/unix"

		"github.com/golang/snappy"
	)

We usually don't want to introduce a new import group; in most cases,
the desired behavior is separating std from third-party packages.

With this CL, new imports that don't share prefix with any existing ones
will be placed with the first group of third-party imports, if any
exist. If no third-party import group exists, a new one will be added.
In the case of our example above, this will be the new outcome:

	import (
		"time"

		"github.com/golang/snappy"
		"golang.org/x/sys/unix"
	)

Fixes golang/go#19190.

Change-Id: Id4630015c029bd815234a6c8726cb97f4af16f1c
Reviewed-on: https://go-review.googlesource.com/37552
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-08-15 00:39:00 +00:00
Kirill Smelkov c2d03f470b go/loader: Fix thinko in FindPackage hook signature
(*build.Context).Import has signature of

	(ctx, importPath, fromDir, mode)

not

	(ctx, fromDir, importPath, mode)

and the loader actually uses the first version.

The thinko was introduced in d6e83e53 (go/loader: changes for vendor
support; CL 18053) and was possible because importPath and fromDir both
have the same type string.

Fix it.

Change-Id: I52deaec6d141846b8a495835b121c1bdc2864215
Reviewed-on: https://go-review.googlesource.com/47343
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-07-05 16:38:48 +00:00
Alan Donovan 63c6481f3b go/loader: fix a data race
The loader was calling (*types.Checker).Files on the "unsafe" package,
a global variable.  Even with zero files, this operation is not a no-op
because it sets the package's "complete" flag, leading to a data race.
(Because Unsafe.complete is already set at construction, the
race is benign, but is reported by -race nonetheless.)

Fixes golang/go#20718

Change-Id: I5a4f95be5ab4c60ea3b6c2a7fb6f1b67acbf42bc
Reviewed-on: https://go-review.googlesource.com/46071
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-06-19 17:45:44 +00:00
Alan Donovan 34f7837286 go/ssa: remove statement with no effect
Change-Id: I1c7958ab16f19fbdc71d2305da3d4afb6e150f73
Reviewed-on: https://go-review.googlesource.com/45934
Reviewed-by: Dmitri Shuralyov <shurcool@gmail.com>
2017-06-15 21:28:45 +00:00
Alan Donovan 6d30ceaab7 go/ssa: fix regression in φ-elimination
https://go-review.googlesource.com/37157 introduced a bug that caused
some live φ-nodes to be removed from the CFG.  The cause was that
reachability traversal considered edges only among "new" φ-nodes
(those introduced during SSA renaming) but not existing φ-nodes from
&& and || expressions.  The fix is to mark existing phis, and thus
other phis reachable from them, as live.  We also clear the Phi.block
field when eliminating a φ-node.

Also, during reachability, we treat DebugRef instructions as roots
like any other non-Phi instruction.  This eliminates a related known
bug whereby the operand of a DebugRef may be a dead φ.

This change also adds a sanity check that all operands of an SSA value
that are themselves instructions must belong to a block.  The sanity
check would fail 7 times on the standard library without the fix.

Fixes golang/go#19622

Change-Id: If3a897a6a593a17bc3f0f8228d1edf483be7a3d0
Reviewed-on: https://go-review.googlesource.com/45832
Run-TryBot: Dominik Honnef <dominik@honnef.co>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dominik Honnef <dominik@honnef.co>
2017-06-15 18:36:17 +00:00
Alan Donovan 365911de24 go/ssa: opt: avoid an allocation
In the dom tree traversal, the final child of each node now
inherits the parent's renaming map, reducing garbage.

This reduces allocations by 1.4% and bytes allocated by 2.0% when
building SSA for the entire standard library.

Change-Id: Id19b6d6766b3e0bf32d1db1238eff8a42d11b242
Reviewed-on: https://go-review.googlesource.com/45833
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-06-15 16:36:43 +00:00
Robert Griesemer b9ad13c5e8 go/gcexportdata: fix test again (fix older builds)
This time, chose a package that's not changed across several builds.
Follow-up on https://go-review.googlesource.com/45151.

Change-Id: I0b487a45f8b12179b3aa495d852c0b7caa44c921
Reviewed-on: https://go-review.googlesource.com/45154
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-06-08 21:12:18 +00:00
Robert Griesemer add5a52034 go/gcexportdata: fix test output (fix build)
Change-Id: Ib9a92c7b7ac09e739177b8c4c16f893dfb5e4420
Reviewed-on: https://go-review.googlesource.com/45151
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-06-08 18:19:49 +00:00
Alan Donovan b62b8c72b8 go/gcexportdata: a command for inspecting gc export data in archive files
Change-Id: I2428b201c49dc441a0023053798f3287902fc370
Reviewed-on: https://go-review.googlesource.com/44861
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-06-05 19:49:53 +00:00
Spencer Nelson 2a5864fcfb x/tools/go/ssa: Accept struct conversions that ignore tags
This is now allowed in go1.8.

Fixes golang/go#19646.

Change-Id: Iece4fd2a881144bdbe841e0a26ba4348d6b8828e
Reviewed-on: https://go-review.googlesource.com/38452
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-06-02 20:57:42 +00:00
Fatih Arslan bc6db94186 go/ast/astutil: do not merge if import path is last line
DeleteNamedImport assumes the import declaration is in the form of:

    import (
      "foo"
    )

If an import path is deleted there might be a blank line-sized hole:

    import (

    )

It'll merge the black hole with the last line to change it to:

    import (
    )

However the import declaration might be in the following form as well:

    import (
      "foo")

Whic means after deleting the import path, it changes to:

    import (
    )

In this case it still tries to merge the line with a non existing line,
causing token.File.MergeLine to panic.

We fix the issue by checking that the import path line is not the last
line to avoid panicing.

Fixes golang/go#20229

Change-Id: I37537a4eaa83d14db59a2926d7bb14c27167a2e4
Reviewed-on: https://go-review.googlesource.com/44372
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-05-29 01:35:25 +00:00
Brad Fitzpatrick 15c7897560 go/ssa/interp: fix tests on Go 1.7 and Go 1.8
This mostly reverts commit 1c59bc354d
(CL 43350) which had fixed Go tip but broken Go 1.7 and Go 1.8
builders.

Change-Id: I4e7bdfafde74c9e730bb870b9db05b663b4f56a3
Reviewed-on: https://go-review.googlesource.com/43391
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-05-12 16:33:29 +00:00
Martin Möhrmann 1c59bc354d go/ssa/interp: add internal/cpu.cpuid to fix short tests
http://golang.org/cl/41476 added the internal/cpu package
to unify cpu feature flag detection in the standard library.

Add a replacement for the assembler function internal/cpu.cpuid
that simulates a x86 cpu with no feature detection capabilities.

Remove bytes.init and strings.init from the external function list
because they do not depend on assembler functions anymore.

Remove hash/crc32.haveSSE42 and math.hasSSE4 because they
have been removed from the go standard library.

Change-Id: Icab6ed3cb13eb14b28d23f2b9c5ae94688f2dc95
Reviewed-on: https://go-review.googlesource.com/43350
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-05-12 13:04:21 +00:00
Koichi Shiraishi 9862c35773 go/gcexportdata: fix unnecessary plural type definitions of arg
importPath and srcDir are both of string type.

Change-Id: Ia5230bd19ea83bc210cb0b1a50046e4e0ef2accb
Reviewed-on: https://go-review.googlesource.com/42890
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-05-06 16:03:34 +00:00
Dmitri Shuralyov 2382e3994d go/vcs: allow go get on github.com/ import paths with Unicode letters
Manually apply same change as CL 41822 did for cmd/go/internal/get,
but for golang.org/x/tools/go/vcs, to help keep them in sync.

Updates golang/go#18660.
Helps golang/go#11490.

Change-Id: I6c7759c073583dea771bc438b70f8c2eb7b5ebfb
Reviewed-on: https://go-review.googlesource.com/42017
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-04-28 05:47:26 +00:00
Josh Bleecher Snyder 4bb9a6d30b go/gcimporter: update to latest copy from master
Backport of CL 41619.
Generated by copying bimport.go and reverting
the chunk containing the "This file is a copy"
comment near the top.

Fixes golang/go#20121

Change-Id: If24c97d01a550318ab919c37cd0c4a8f34d776c7
Reviewed-on: https://go-review.googlesource.com/41756
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-25 22:48:49 +00:00
Robert Griesemer c853fd5769 go/gcimporter: fix importing of anonymous interfaces
This is a backport of https://go-review.googlesource.com/#/c/41198/.

For golang/go#20046.

Change-Id: I58448c7dcc5e835d5c774e253cb56fec6e154f12
Reviewed-on: https://go-review.googlesource.com/41204
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-04-20 22:13:23 +00:00
Ross Light a17c85b5d7 go/vcs: fix doc for Cmd.TagSync
Change-Id: I6037372d7390faad23e12d85a0f1189648e80f8f
Reviewed-on: https://go-review.googlesource.com/41199
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-20 21:08:16 +00:00
Alan Donovan fc77adfcad go/ssa/interp: add two intrinsics to fix tests
(specifically: strings.Count, testing.callerEntry)

The interpreter tests were very useful for finding bugs during
development of go/ssa but now seem to be all cost and no benefit.
It may be time to delete this package.

Change-Id: I22348be9fb37bb0fd0c572c3e6f57e70fc069e02
Reviewed-on: https://go-review.googlesource.com/40871
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-15 13:02:17 +00:00
Robert Griesemer c21bc47f89 go/gcimporter: exclude failing test from gcimporter tests (fix build)
This is already tested in the std library. Ok to take the easy way
out here.

Change-Id: Ie17e16fddba827bfe279e1f790006b3874f830ad
Reviewed-on: https://go-review.googlesource.com/38455
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-03-22 23:20:07 +00:00
Matthew Dempsky b08393ce6d go/gcimporter15: backport interface embedding support
Backports golang.org/cl/38392 from go/internal/gcimporter.

Updates golang/go#16369.

Change-Id: Ic805f96e6565590987a5dae9f0f76c206fceab05
Reviewed-on: https://go-review.googlesource.com/38429
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-03-21 22:26:56 +00:00
Alan Donovan 767744efe2 go/ssa/interp: add more intrinsics for sync/atomic and runtime
Change-Id: I4743fa32be5549b2d141595d236c653e53cc9ff4
Reviewed-on: https://go-review.googlesource.com/37712
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-03-06 18:20:00 +00:00
Dominik Honnef a99f4ece36 go/pointer: implement extended queries
The existing API for querying values only allows directly querying
pointer-like values, or pointers to such values. The new, extended
queries make it possible to destructure values and access arbitrarily
nested pointers, such as fields in structs, or specific values in
tuples.

We use single Go expressions as the queries, which we further restrict
to a subset of the language (indexing, field access, pointer
dereferences and channel receives).

Instead of adding another map to Result, we return a *Pointer and
populate it during analysis. This does mean that a Config cannot be
reused for multiple analyses, as it now holds analysis-specific state.
That is, however, not a big problem as reusing one Config had little
use.

Since the new API can do everything the old could, it deprecates
AddQuery and AddIndirectQuery.

Change-Id: I4b2ae7d85c462bc7faa6bab76456106e76be5a65
Reviewed-on: https://go-review.googlesource.com/37635
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-03-06 04:11:41 +00:00
Alan Donovan 181cdfd456 go/ssa: create an 'init' function even if len(files)==0
Package "unsafe" has no files, and is treated like a regular package since
https://go-review.googlesource.com/37710, and the interpreter needs an
init function with a body for every package.

Change-Id: I27bd7cdb1ecaf01d0b5ed91db57145d1b4f551e1
Reviewed-on: https://go-review.googlesource.com/37711
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-03-03 14:03:29 +00:00
Alan Donovan 7a49e427c8 go/loader: don't create types.Package for "unsafe"
https://golang.org/cl/37694 is a backwards-incompatible change to the
go/types API that causes "unsafe" to be included among the results of
(*types.Package).Imports().  Client packages such as go/loader and
go/ssa now need to recognize the special unsafe package and its
unusual *Bultin members and not create a types.Package for it.

Change-Id: I902725d3053cb887246978efdb5ec5dcdc0e4818
Reviewed-on: https://go-review.googlesource.com/37710
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-03-02 21:55:26 +00:00
David R. Jenni b20a216efb x/tools/go/internal/gccgoimporter: remove unused method
Found with honnef.co/go/tools/cmd/unused.

Change-Id: Ib8acac744a171b70f3f842f8f5f8c34064869383
Reviewed-on: https://go-review.googlesource.com/37604
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-03-01 14:54:10 +00:00
David R. Jenni 76c38d6bce x/tools/go/buildutil: remove unused function
Found with honnef.co/go/tools/cmd/unused.

Change-Id: I1dc8e4dbfd784bb22b2f0dabb7c1a08cf1ef44ee
Reviewed-on: https://go-review.googlesource.com/37603
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-03-01 14:53:57 +00:00
David R. Jenni 36a48c93a6 x/tools/go/ssa: remove unused field from NamedConst
Found with honnef.co/go/tools/cmd/unused.

Change-Id: I68b4af07cc64a46f5794a0e339859f4d6bc9dad1
Reviewed-on: https://go-review.googlesource.com/37605
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-03-01 14:40:01 +00:00
David R. Jenni 718875e4f9 x/tools: simplify and format code
Semi-mechanical changes using gofmt -s
and honnef.co/go/tools/cmd/gosimple.

Change-Id: I41bcf4bea5b16c4776b7cf6534b76aa59b3c022d
Reviewed-on: https://go-review.googlesource.com/37447
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-28 14:15:42 +00:00
Alan Donovan 219e654bb7 go/ssa: eliminate dead φ-nodes in cycles
The previous "dead φ" check was simple and naive but left cycles of
dead φ-nodes.  This confused some downstream static analysis tools.
This change makes the φ-nodes liveness check transitive.

+ Test.

Also, number phi nodes so they're not all called t0 during debugging.

Reduces memory consumption by  1%.
Increases execution time   by <1%.

Change-Id: I2908662c1478d455fdf4a179f4a12d6184a456c0
Reviewed-on: https://go-review.googlesource.com/37157
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-22 01:23:56 +00:00
Ian Lance Taylor f84eaba4be go/loader: only run examples on 1.8
Tip introduces a new internal/poll package that breaks the expected
output.

Fixes golang/go#19150
Updates golang/go#19152

Change-Id: I5ff7e8a92afe4d25feb6365933062e931c9b435f
Reviewed-on: https://go-review.googlesource.com/37148
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-02-17 19:31:53 +00:00
David R. Jenni be0fcc31ae x/tools/go: gofmt -s -w
Change-Id: I978b981d95909f2590c1e1db05e8a95e232a67d5
Reviewed-on: https://go-review.googlesource.com/32794
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-02-15 21:43:35 +00:00
Alan Donovan 6e7ee5a9ec x/tools: support Go 1.9 type aliases
For #18130.

Change-Id: Ice695602619dbbf851af970e790f07ff2ac2c141
Reviewed-on: https://go-review.googlesource.com/36623
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-13 21:46:59 +00:00
haya14busa 8524ce5143 imports, go/ast/astutil: do not make grouped imports non-grouped when removing
import (
		"fmt"
		"strings"
	)

When deleting "fmt" import statement, code should be converted to the
following code.

	import (
		"strings"
	)

Instead of

	import "strings"

Diff becomes nicer by this change and it avoids that rewriting grouped
imports non-grouped may result in confusion comments.

Example:

	// comment 1
	import (
		"fmt"
	        // comment 2
		"strings"
	)

should be

	// comment 1
	import (
	        // comment 2
		"strings"
	)

instead of

	// comment 1
        // comment 2
	import "strings"

Fixes golang/go#18051

Change-Id: I3c07b70b657191eacf83c3197a965e587286c950
Reviewed-on: https://go-review.googlesource.com/36853
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-13 18:56:44 +00:00
Alan Donovan b56ef30191 tools: updates for minimum Go version 1.6
Details:
- remove go1.5 "default version" labels on most files
- remove go1.6 labels on a few files
- go/loader: use conf.Cwd not "." in a couple places; update faulty
  test expectations.  (Not sure why this wasn't caught sooner.)
- go/ssa/interp: add 'mono' result to time.now intrinsic
- go/gcimporter15/bimport.go: make consistent with the version in gc
- go/ssa/interp: update test error message
- go/ssa: update a comment

The go/gcimporter15/bexport.go logic is stale and needs to be brought
up to date.  Needs a separate CL since it's tricky.

Tested on go1.6, go1.7, go1.8.

Change-Id: I841189d30e131b7c49a4e8690ea7c40b55041bae
Reviewed-on: https://go-review.googlesource.com/36540
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-07 21:06:19 +00:00
Alan Donovan 1977f1cf7d go/ssa/interp: remove old TODO
Change-Id: Ia518721769048a5f7413eb90265cc27128cc9c10
Reviewed-on: https://go-review.googlesource.com/36537
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-07 19:36:57 +00:00
Robert Griesemer b55a2aaa40 go/internal/gccgoimporter: add missing testfile (fix 1.9 build)
Change-Id: Icba8d6917dcac4b8f541fc11305981539a12924a
Reviewed-on: https://go-review.googlesource.com/36116
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-01 22:16:26 +00:00
Robert Griesemer fcfba28e23 go/internal/gccgoimporter: support for type aliases
This is essentially a copy of the changes in https://golang.org/cl/35268/
but with Go1.9 specific tests factored out into a separate file with build
tag.

For golang/go#18130.

Change-Id: I235693e1bc6145bb53bfd3b343647704c8e82e61
Reviewed-on: https://go-review.googlesource.com/35269
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-01-20 05:57:59 +00:00
Robert Griesemer de557280a1 go/gcimporter15: update import/export to handle type aliases
- bimport.go is a 1:1 copy of the respective version in the std
  library: $GOROOT/src/go/internal/gcimporter/bimport.go .

- bexport.go is mimicking the respective code in the cmd/compile.

- isAlias18/19.go are needed because types.TypeName.IsAlias does
  not exist before Go 1.9.

Tested against Go 1.6, 1.7, 1.8, 1.9 (dev.typealias branch).

For golang/go#18130.

Change-Id: Ic46c5850923fab2a35d4dc33850f2b0667c30398
Reviewed-on: https://go-review.googlesource.com/35104
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-01-11 20:35:34 +00:00
Samuel Tan dd79664177 go/internal/gccgoimporter: accept missed portions of v2 format
Same as https://go-review.googlesource.com/c/34371/ in the standard library.

Fixes #18301.

Change-Id: I132585e0f98c53437fdef44ac36af8f21d141a83
Reviewed-on: https://go-review.googlesource.com/34387
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-12-15 00:32:54 +00:00
Brad Fitzpatrick a888bfdffa go/loader: fix broken tests after context removal from testing package
Updates golang/go#11811
Updates golang/go#18199

Change-Id: I2ce4615653034563a64b9c126651d2a6ce2aef50
Reviewed-on: https://go-review.googlesource.com/34274
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2016-12-10 02:42:22 +00:00
Alan Donovan 3d92dd6003 go/internal/gccgoimporter: handle conversions in exported const values
Same as https://go-review.googlesource.com/c/33412/ in the standard library.

Fixes #17981.

Change-Id: Iaf47872840a4456d824ed5d7b3eda205c043e4cf
Reviewed-on: https://go-review.googlesource.com/34110
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-12-07 20:12:13 +00:00
Rebecca Stambler 99be5a0b85 go/buildutil, cmd/guru: resolve symlinks in filenames through build.Context
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>
2016-12-06 21:45:43 +00:00
Rebecca Stambler ae1141fc8b Revert "go/buildutil: handle symlinks in filenames"
Reason: ContainingPackage should do all I/O through build.Context.

This reverts commit 3a9a2cbbc4.

Change-Id: I3897d8da5026ddc470989e3f239540286e89df4d
Reviewed-on: https://go-review.googlesource.com/33922
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-05 22:44:39 +00:00
Rebecca Stambler 07e766bf81 Revert "go/buildutil, cmd/guru: fix tests for symlinks in guru and gorename to account for windows."
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>
2016-12-05 22:43:53 +00:00
Rebecca Stambler c945ee3be4 go/buildutil, cmd/guru: fix tests for symlinks in guru and gorename to account for windows
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>
2016-12-05 21:18:37 +00:00
Rebecca Stambler 3a9a2cbbc4 go/buildutil: handle symlinks in filenames
Resolve symlinks in source directories (GOPATH, GOROOT, etc.) and source
files in order to find correct package.

Fixes golang/go#16219

Change-Id: I6fae14908827d5ebac55dfe455eaf616f71f8767
Reviewed-on: https://go-review.googlesource.com/33919
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-05 20:02:40 +00:00
Zac Bergquist 8462b1669f go/buildutil: fix doc reference
Fix reference to OverlayContext in the doc for
ParseOverlayArchive.

Change-Id: I0b1db478489764fa309cb2e2f788865ac7ff71bb
Reviewed-on: https://go-review.googlesource.com/33916
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-12-05 17:11:22 +00:00
Alan Donovan 34fe8ce027 go/gcexportdata: better error when reading exportdata directly from archive
Change-Id: Iaa6fe8a33bee852be4e2414c6db7ca5df17006b6
Reviewed-on: https://go-review.googlesource.com/33715
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-30 19:52:27 +00:00
Alan Donovan 6c803ab014 go/loader: resolve imports in "created" packages w.r.t. parent dir not cwd
Fixes golang/go#16580

Change-Id: Id891f40659257eac9dbb0d70dae17f725e911f9b
Reviewed-on: https://go-review.googlesource.com/33589
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-28 22:26:25 +00:00
Alan Donovan 89662b06bc go/ssa/interp: add several intrinsics for Darwin
Also: drop all pretense of support for platforms other than darwin and linux.
This package is just a test of go/ssa, not a portable interpreter, and these
are the only platforms to which I have easy access.

Builds on: freebsd darwin plan9 linux windows

Change-Id: I965abc67b1280d33e933b83607a4372d65e070cf
Reviewed-on: https://go-review.googlesource.com/33163
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-28 17:49:04 +00:00
Alan Donovan 167995c67f go/ssa: avoid no-arg println(), for gccgo compatibility
Change-Id: I5f789ae492ff0f0ad62d89e3ae762ece6c867d20
Reviewed-on: https://go-review.googlesource.com/33573
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-23 22:44:20 +00:00
Alan Donovan 5e2ae75eb7 go/ssa/interp: add syscall.Readlink intrinsic, needed by os package
Change-Id: Ie408fd5ffb2be2d60773eb3fda91912887df0a7e
Reviewed-on: https://go-review.googlesource.com/33147
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-11 21:41:07 +00:00
Alan Donovan 22ba3f367c go/gcimporter15: pretend blank fields have same owner
The export data formats (text and binary) emitted by gc in Go 1.7 did
not record the package that "owns" each blank field, even though blank
is an unexported identifier.  Before, gcimporter would assume the
package of the export data file owns blank fields within it, even
blank fields reexported from another package.  As a result, identical
types would become nonidentical during reexporting.

For bug compatibility with gc, gcimporter now treats blank fields as
if they all belong to the same dummy package, avoiding spurious "can't
assign A to B" errors in tools based on go/types.

Change-Id: I0dbf71491a0ec0f376e9dc8a91efe0376c855a28
Reviewed-on: https://go-review.googlesource.com/33146
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-11 21:27:08 +00:00
Robert Griesemer a69656e0e2 go/gcimporter: update export data format version
We already are compatible with the latest format. Update version.

Tested against 1.6, 1.7, and tip.

Fixes golang/go#17734.

Change-Id: Ia167adf0ed1de371c348329513819fb9e8ca2628
Reviewed-on: https://go-review.googlesource.com/33113
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-11 18:00:05 +00:00
Robert Griesemer c959b77b38 go/gcimporter15: update build tags and comments
We don't support Go1.5 anymore.

Tested with 1.6, 1.7, and tip.

For golang/go#17734.

Change-Id: I718c7996b99f9b98744346e119ee209b4709a070
Reviewed-on: https://go-review.googlesource.com/33111
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-11 17:55:17 +00:00
Alan Donovan 5061f921c7 go/gccgoexportdata: correctly handle archive files containing string tables
If the name of an archive member is longer than 16 bytes, an ELF archive
file contains a string table of file names under the name "//", and this
member has no mode.  Skip such members.

+ Test.

Change-Id: Ib10db1cc42816c9002433be6176240e490678560
Reviewed-on: https://go-review.googlesource.com/32973
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-11-09 21:28:38 +00:00
Alan Donovan 7ce0cddaad go/ssa: synthesize Go 1.8-compatible test main package
...to match the new interface between "go test" and the standard testing
package.

Rather than generate SSA code directly, which was tricky and fragile, we
now generate source just as "go test" does, type-check it, and build an
SSA package from it.  crawshaw suggested I do this in the very first
version of testmain.go, but at the time I believed it to be infeasible.

The testMainStartBodyHook mechanism has gone away; installations that
needed it can now achieve the same results more easily by overriding the
templates.

Tested with Go 1.6, 1.7 and 1.8.

Fixes golang/go#17722

Change-Id: I3ffd25f01157f6fb7a39acd18af46f17e9c07b99
Reviewed-on: https://go-review.googlesource.com/32888
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-08 18:33:05 +00:00
Samuel Tan 09079c88dc go/gccgoexportdata: plumb additional arguments to gccgo compiler
Allow extra arguments to be passed to the specified gccgo compiler
when it is called in GccgoInstallation.InitFromDriver. This allows
the call to gccgo to be adjusted depending on the build environment.

For example, some build environments require the
'no-canonical-prefixes' option to prevent gccgo from resolving
symlinks when generating relative prefixes.

Change-Id: I0ecf338ee7a3780f1f65b30e214e69c1698041bb
Reviewed-on: https://go-review.googlesource.com/32874
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-07 23:39:01 +00:00
Robert Griesemer 46c63f3841 go/gcimporter15: revert user-visible changes related to aliases
Reason: Decision to back out current alias implementation.
For golang/go#16339 (comment).

Change-Id: Id2a394d78a8661c767bcc05370b81f79d9bfb714
Reviewed-on: https://go-review.googlesource.com/32756
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Chris Manghane <cmang@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-11-05 01:00:22 +00:00
Alan Donovan 58ec10c513 go/ssa/interp: handle nil *hashmap cleanly
Change-Id: I2cb8eef79bc011b209b3df0b859bcddefd4c8337
Reviewed-on: https://go-review.googlesource.com/32818
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:49:12 +00:00
Alan Donovan 2e348630fd go/loader: fix fragile example test
Change-Id: Ib6313cdba54da8911b8a2ec9e1bc115c30ea6afe
Reviewed-on: https://go-review.googlesource.com/32817
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:44:43 +00:00
Alan Donovan 701d657347 tools: remove go1.8-tagged files
Change-Id: Ib52b85e1c981b6fca55c472120371a0cd37d2dc9
Reviewed-on: https://go-review.googlesource.com/32816
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:29:52 +00:00
Alan Donovan fe1fa38300 go/ssa: remove go1.8 tagged files
Change-Id: Iac37a0dba27459f0484aa4e286c21bb618116619
Reviewed-on: https://go-review.googlesource.com/32836
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:18:10 +00:00
Alan Donovan e2e4d7aa62 go/ast/astutil: revert support for Go 1.8 type aliases
This reverts commit 50193ec1c5.

Reason for revert: aliases will not be part of Go 1.8

Change-Id: Idb3b74243eeb8dbeb2a2f4bd69a248c1dafa5348
Reviewed-on: https://go-review.googlesource.com/32835
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:17:24 +00:00
Alan Donovan 50193ec1c5 go/ast/astutil: support Go 1.8 type aliases
Change-Id: I67d561755c1c06c0438f2b42e6a13efb024558c4
Reviewed-on: https://go-review.googlesource.com/32732
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-03 21:54:53 +00:00
Robert Griesemer f08d70c2ed go/gcimporter15: support export/import of invalid aliases
+ test

Tested on 1.6, 1.7, and 1.8.

Fixes golang/go#17731.

Change-Id: I06dff4a72ff08ed5e8ae1d23a1e65fe719c03180
Reviewed-on: https://go-review.googlesource.com/32581
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-03 15:57:31 +00:00
Robert Griesemer c3ce94f8a8 go/gcimporter15: update importer test (fix build)
The -newexport flag is on by default for 1.7,
no need to special-case it anymore.

Tested against 1.6, 1.7, and 1.8.

Change-Id: I9c4a31f80d1309564e2a01514fca4b17e4378b9c
Reviewed-on: https://go-review.googlesource.com/32582
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-11-02 23:36:01 +00:00
Robert Griesemer d54c98191e go/loader: fix ExampleConfig_Import (fix build)
TBR=adonovan

Tested against 1.6, 1.7, and 1.8.

Change-Id: Ifd8e02a83e7b92c00a746f10475ab725801199e2
Reviewed-on: https://go-review.googlesource.com/32638
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-11-02 23:31:09 +00:00
Matthew Dempsky d4397e8931 go/gcimporter15: backport double-export fix for aliased objects
Backport of https://golang.org/cl/32575.

Change-Id: Ic4b0794ee440b7ac6275f0ef7dacda20de4fdad0
Reviewed-on: https://go-review.googlesource.com/32577
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-02 20:38:00 +00:00
Robert Griesemer a829b5068d go/gcimporter15: remove support for Go1.5
Change-Id: I183090131a675237be42cc005719554399704f8d
Reviewed-on: https://go-review.googlesource.com/32541
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-02 18:31:16 +00:00
Robert Griesemer a4fe4f6140 go/gcimporter15: implement support for exporting aliases
Tested with 1.6, 1.7, 1.8.

Change-Id: Ib0f751484c360b02aa34c993ce795cb94656705f
Reviewed-on: https://go-review.googlesource.com/32540
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-02 18:30:30 +00:00
Robert Griesemer 5b3db00587 go/gcimporter15: implement support for importing aliases
- backport of changes made to std lib:
  https://go-review.googlesource.com/32350/
  https://go-review.googlesource.com/32538

- factored out newAlias for non-Go1.8 builds

- tested against 1.6, 1.7, 1.8

Change-Id: I538b2d4a0f0c93c517a7aaa3b1562aa3afd154dd
Reviewed-on: https://go-review.googlesource.com/32470
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-02 17:35:51 +00:00
Alan Donovan 4549178751 x/tools: clone some files in preparation for alias changes
This CL only copies files and updates build tags.
Substantive changes will come in follow-ups.
This is a workaround for git's lack of rename/copy tracking.

Tested with go1.6, go1.7, and tip (go1.8).

Change-Id: Id88a05273fb963586b228d5e5dfacab32133a960
Reviewed-on: https://go-review.googlesource.com/32630
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-02 16:57:37 +00:00
Alan Donovan b814a3b030 go/internal/gccgoimporter: use 0 not io.SeekStart for Go 1.6 compatibility.
Change-Id: I396e221217c7fac5e7a9d66cbd97ef51782b0dd8
Reviewed-on: https://go-review.googlesource.com/32298
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-28 18:18:45 +00:00
Alan Donovan f24fea3cd4 go/gcexportdata: suppress example_test.go on Go 1.6
because its export data doesn't contain file position information.

Change-Id: Ia3ab54ae8a493666b9ad63577aa8fad513385052
Reviewed-on: https://go-review.googlesource.com/32299
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-28 18:18:30 +00:00
Alan Donovan 6d7cee0134 go/gcimporter15: read v3 export data not containing type aliases
This is a short-term stop-gap to keep the builders happy.

Change-Id: I87171c20bf44f36fd2c4d7213211217de6110fdd
Reviewed-on: https://go-review.googlesource.com/32293
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-28 16:05:56 +00:00
Alan Donovan 0db92ca630 go/gcexportdata: make example portable to MS Windows, 2nd attempt
(The first was go-review.googlesource.com/c/31813)

Fixes issue golang/go#17565

Change-Id: I61c124e041af689913aedebdde654197c5526228
Reviewed-on: https://go-review.googlesource.com/32034
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-25 20:54:37 +00:00
Alan Donovan 17d0fe57ec go/gccgoexportdata: lost edits from review of CL 31822
Change-Id: I4d1eb36c2da5c7ad51989a1c9ab09b03019fd8f0
Reviewed-on: https://go-review.googlesource.com/31971
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-10-25 15:10:52 +00:00
Alan Donovan 5e7fa1cbaa go/gccgoexporter: an API for parsing gccgo export data
This package is provided as a stop-gap until gccgo uses the same export
data format as gc.  Once that occurs, this package will be deprecated
and eventually deleted.  The API is similar to (a subset of) gcexportdata.

Change-Id: I3398dbb8eab508a24d12036bbadaa60c2c1e77b3
Reviewed-on: https://go-review.googlesource.com/31822
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-25 15:07:10 +00:00
Alan Donovan 20055e012d go/internal/gccgoimporter: fork go/internal/gccgoimporter
The standard go/internal/gccgoimporter package is essentially unusable
behind the go/importer.For API, so this change makes a copy of it in
x/tools.  A follow-up change will expose a small but usable API to it.

Change-Id: Ica5092267ecafb78e1d983c86aa46e4e0bef02d5
Reviewed-on: https://go-review.googlesource.com/31854
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-24 21:32:26 +00:00
Alan Donovan b5ed9db83f go/gcexportdata: support old export data (again), needed by AE1.6
+ test

Change-Id: I0842795ece634e4441b17a10009d26bfc2a8481a
Reviewed-on: https://go-review.googlesource.com/31818
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-24 17:37:43 +00:00
Alan Donovan 0f7f54c9d9 go/gcexportdata: make test portable to MS Windows
Fixes issue #17565

Change-Id: I67d2e11acae873ac47694a73ced40d2db38c0fc0
Reviewed-on: https://go-review.googlesource.com/31813
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-24 16:32:43 +00:00
Alan Donovan 1a954d519b go/gcexportdata: a new simpler API for the deprecated go/gcimporter15
Fixes golang/go#15651

Change-Id: I7dc7ba731a22c677e3c01bf13e91ecfff9e46765
Reviewed-on: https://go-review.googlesource.com/30612
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-19 20:22:14 +00:00
Alan Donovan 8e53eb937b go/ssa: support custom TestMain functions in test packages
Supporting user-defined TestMain functions requires that we generate a
"testmain" package for each testable package, rather than a single one
for the entire program.  This entails these API changes:

1. (*ssa.Program).{CreateTestMainPackage,FindTests} both now
   accept only a single package.  Existing clients that pass them
   multiple packages must call them from a loop.

2. (*ssa.Program).FindTests returns an additional result, the the
   optional TestMain *ssa.Function.  Existing clients may discard it.

Also:
- Test the new logic using the SSA interpreter
- add ssautil.MainPackages helper
- callgraph: allow multiple main packages, and analyze them all
- ssadump -run: allow multiple main/test packages, and run each in a new interpreter
- minor simplifications to some callers (e.g. guru)

Fixes golang/go#9553

Change-Id: Ia7de9bd27448fb08b8d172ba5cdbcf37a762b7a0
Reviewed-on: https://go-review.googlesource.com/25102
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-19 17:50:59 +00:00
Rhys Hiltner af95c112ad go/ast/astutil: do not remove imports in AddNamedImport
When adding imports to an existing import declaration, ensure that
the target declaration will be printed with parentheses. This allows
all of the imported packages to be printed, not just the first one.

Fixes golang/go#17212

Change-Id: Ie5de5ec9bca6169650336ee2ea98334817e64e48
Reviewed-on: https://go-review.googlesource.com/29688
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-10-18 18:48:44 +00:00
Alan Donovan 2f93937767 x/tools: s/oracle/guru/g in various comments
Change-Id: Ie0da80db4f58d9f6e7d9675c89f106d1cd01710a
Reviewed-on: https://go-review.googlesource.com/30983
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-13 18:54:04 +00:00
Russ Cox b44548ae6a go/vcs: accept plain file for .vcs (instead of directory)
Sometimes .git is a plain file; maybe others will follow.

Fixes golang/go#10322.

Change-Id: Id57424998c207080c3ed5826b1e5e091fa26aad5
Reviewed-on: https://go-review.googlesource.com/21430
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-10-13 13:57:49 +00:00
Alan Donovan 992f6f9bcc go/loader: fix CreateFromFilenames example
The "sort" package is no longer quite as low-level as it once was.

Change-Id: Ic62d780841ef1172f65d4c00ec500994f94cb4b7
Reviewed-on: https://go-review.googlesource.com/30931
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-10-12 15:34:52 +00:00
David R. Jenni f4e1751b91 go/ast/astutil: handle documentation of imports in DeleteNamedImport.
If the parens of an ast.GenDecl are dropped, move the documentation
of the ImportSpec above the import statement, otherwise the the
code is invalid.

Fixes golang/go#15432.

Change-Id: I715750b8f528380b96a6bc8b5f216043937976c2
Reviewed-on: https://go-review.googlesource.com/22415
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-10-12 15:09:30 +00:00
Robert Griesemer b5358b5fee go/gcimporter15: update exportdata.go to match latest version from std lib
For golang/go#17281.

Change-Id: I7bed233368939719672eb331cca1d6aef01e807d
Reviewed-on: https://go-review.googlesource.com/30591
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-10-06 19:19:18 +00:00
Alan Donovan 03663480fa go/buildutil: ExpandPatterns: ignore a trailing slash in a pattern
Previously, a trailing slash would cause "foo/" to be treated as the
name of a package, with comical results.

Fixed golang/go#14584

Change-Id: I660f8a079bbd63d3645812e516a9264c8e080e61
Reviewed-on: https://go-review.googlesource.com/30452
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-05 19:34:25 +00:00
Rhys Hiltner c2ef61f450 go/ast/astutil: fix loop logic in AddNamedImport
When merging import declarations into a single block, AddNamedImport
modifies the list of declarations in the provided file while
iterating over the list. Take care to adjust the index into the list
so as to not skip entries or fall off the end.

Fixes golang/go#17213

Change-Id: I807246f762c965ea1fc51eb57759f6088336db86
Reviewed-on: https://go-review.googlesource.com/29681
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-09-24 00:48:36 +00:00
Alan Donovan 86ad1193da go/ssa/interp: turn {strings,bytes}.init into no-ops
...to avoid executing the supportAVX2 assembly function.

Also, combine all no-op intrinsics into a single function.

Change-Id: Ic65a80d3a6df52c3850c34406f034781057a0991
Reviewed-on: https://go-review.googlesource.com/28711
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-09-07 20:36:55 +00:00
Robert Griesemer 9deed8c6c1 go/gcimporter15: update to recognize export format version 2
Port of https://go-review.googlesource.com/#/c/27999/.

Change-Id: I71c4553e925fcf943ecafdef307591f63136d432
Reviewed-on: https://go-review.googlesource.com/28001
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-08-29 18:38:39 +00:00
Robert Griesemer a832035fe5 go/gcimporter15: update to match latest changes to cmd/compiler exporter
Backport of https://go-review.googlesource.com/27814 changes to
bexport.go.

With this, the gcimporter15 is again up-to-date and in sync with both
the compiler's export code, and the compiler's and std lib gcimporter's
import code.

Change-Id: I8e229660eb78ddc1506b7b96a89c81ff083e0412
Reviewed-on: https://go-review.googlesource.com/27914
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-08-26 22:16:59 +00:00
Robert Griesemer e545a4ce60 go/gcimporter15: update to match latest changes to std lib gcimporter
Mostly a backport of https://go-review.googlesource.com/27816.
Includes an update to TestIssue13898 to match the std lib gcimporter
test.

Change-Id: I790123a49deb2d52f19e51c84bbc7ee74c99156e
Reviewed-on: https://go-review.googlesource.com/27913
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-08-26 22:16:48 +00:00
Robert Griesemer b2560d12f6 go/gcimporter15: backport compiler exporter fix for golang/go#15514
Code from https://go-review.googlesource.com/#/c/27639/ .

Remain backward-compatible with possibly installed packages
that remain in Go1.6 format.

Change-Id: If424e7a881c81bbfcacf38c0946542793c406abd
Reviewed-on: https://go-review.googlesource.com/27640
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-08-23 23:43:11 +00:00
Robert Griesemer 2bbdb4568e go/gcimporter15: update to match std lib gcimporter (fix build)
TBR=adonovan

Change-Id: Ib2464def48932e0d0fc24f67c76a10e8918acb9d
Reviewed-on: https://go-review.googlesource.com/27235
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-08-23 00:37:51 +00:00
Robert Griesemer 1cf0a337cd go/gcimporter15: don't run 1.7-specific test under 1.8 (fix build)
TBR=adonovan

Change-Id: I310ff6e51d681b2e5c8288e73870ce7d68e45518
Reviewed-on: https://go-review.googlesource.com/27208
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-08-17 05:10:56 +00:00
David R. Jenni 491cbb1158 go/ast/astutil: add tests for UsesImport.
Change-Id: I05e9897b2ac858e1c3cc0d54f9da74e34f72f9e2
Reviewed-on: https://go-review.googlesource.com/27002
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-08-16 21:44:40 +00:00
Tim Henderson 1634796cc3 go/ssa: fix stale docs for CreateProgram and Build
Both functions had documentation referring to BuildAll when the
function is now called Build.

Change-Id: I59cce397a0a72bf7fa36f9798e2b07bb6b1da726
Reviewed-on: https://go-review.googlesource.com/25084
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-07-20 18:52:54 +00:00
Robert Griesemer c550f66b0b go/gcimporter15: backport of https://golang.org/cl/23606/
Change-Id: I24a6a844e179dd1b69c90c5834d7998cb963c543
Reviewed-on: https://go-review.googlesource.com/24974
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-07-15 21:35:32 +00:00
Robert Griesemer 3f933d433a go/gcimporter15: backport of https://golang.org/cl/23012/
Fixes golang/go#16365.

Change-Id: I8e33fbd9f1bf1b4b5d85a5c972ad43414cea57cb
Reviewed-on: https://go-review.googlesource.com/24973
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-07-15 21:35:22 +00:00
Robert Griesemer 6c3528d5c1 go/gcimporter15: backport https://golang.org/cl/24648/
Change-Id: Id85050b236f5da2c705c45163c90fef1a396e8f8
Reviewed-on: https://go-review.googlesource.com/24700
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-07-01 19:20:20 +00:00
Alan Donovan 0d2bde8553 go/ast/astutil: describe fewer CallExprs as "conversions"
Only unary CallExprs with no ellipsis, f(x), are ambiguous.

Change-Id: If4f17445ab0725dee916992db133eac5536133a7
Reviewed-on: https://go-review.googlesource.com/24552
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-06-30 18:40:56 +00:00
Monty Taylor 6d483ee832 vcs: Add support for git.openstack.org
Go is being proposed as an officially supported language for elements of
OpenStack:

  https://review.openstack.org/#/c/312267/

As such, repos that exist in OpenStack's git infrastructure
are likely to become places from which people might want to go get
things. Allow optional .git suffixes to allow writing code that
depends on git.openstack.org repos that will work with older go versions
while we wait for this support to roll out.

Change-Id: I1f7be6b7aae63f9c554dbcdbfa46855bcff321df
Reviewed-on: https://go-review.googlesource.com/23362
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-05-24 15:53:25 +00:00
Robert Griesemer fbb6674a74 go/gcimporter15: match recent changes to export format
This is a copy&paste fix of the changes in golang.org/cl/22839.

Fixes https://github.com/golang/lint/issues/207 .

Change-Id: I2c4850395c8aa330ea27ad629b21ac21b973ef75
Reviewed-on: https://go-review.googlesource.com/22963
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-05-10 02:37:36 +00:00
Alan Donovan 3f1f7eeff1 go/gcimporter15: set Pos attribute of decoded types.Objects
BImportData now requires a token.FileSet.
Column numbers are not exported, and are always reported as 1.
Line numbers greater than the limit (currently 64K) are reported as 1.

+ Test that file/line info is correctly preserved for the entire
  standard library.

Change-Id: I80cf370685320240dfb262d36fafd6cdf8569bfb
Reviewed-on: https://go-review.googlesource.com/22788
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-05-09 13:28:09 +00:00
Robert Griesemer 8dab6f1129 go/gcimporter15: adopt changes from golang.org/cl/22714
Fixes x/tools build.

Change-Id: Ifd958ff1293ec2c4fd971813ae7b199b5d8244fe
Reviewed-on: https://go-review.googlesource.com/22721
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-05-03 16:15:14 +00:00
Alan Donovan 686d0ad5b8 go/ssa: reduce set of expected indirect imports
...now that gc's export data records fewer dependencies.

Change-Id: Ie0f68f1f7b0825f6d2c100dfe189be017383db60
Reviewed-on: https://go-review.googlesource.com/22584
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-04-28 21:42:55 +00:00
Robert Griesemer c5c16cf68a go/gcimporter: update importer to match latest gc export data changes
Adjustments taken from https://golang.org/cl/22580.

Change-Id: Ic88137b410767bd17e3d6142cec2b5a112df56be
Reviewed-on: https://go-review.googlesource.com/22582
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-28 21:04:03 +00:00
Alan Donovan 56005b4126 go/ssa/interp: add intrinsic for runtime.NumGoroutine
...which is used by $GOROOT/test/goprint.go.

Change-Id: I4626b8fae3f87d9c8dd8cdcd8c05036955a36262
Reviewed-on: https://go-review.googlesource.com/22560
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-04-28 18:16:55 +00:00
Robert Griesemer 4e3242e000 go/gcimporter: cut off any gc-specific parameter numbering
Matching pending CL https://golang.org/cl/22441/.

Change-Id: I96fab1da7abfeb8f22ce680183649dfa4b84d461
Reviewed-on: https://go-review.googlesource.com/22442
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-25 22:17:50 +00:00
Robert Griesemer 487c81ee33 go/gcimporter15: match https://golang.org/cl/22385
Don't export position info for now. Enabled/disabled with a flag.
The importer recognizes the chosen format automatically.

Change-Id: I055818eb9dba50cc97f40eb92220258a1ddbfbec
Reviewed-on: https://go-review.googlesource.com/22427
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-25 20:08:02 +00:00
Robert Griesemer 764c4ccf44 go/gcimporter15: match https://golang.org/cl/22096/
Read and write position info.

Change-Id: Ibe4a914ff51911bbda656b08f1397132e495ab8a
Reviewed-on: https://go-review.googlesource.com/22098
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-15 16:49:27 +00:00
Robert Griesemer 5da1e91fb2 go/gcimporter15: match https://golang.org/cl/21939/
Plus cleanups from https://golang.org/cl/21963/.

Change-Id: Ifb216081581950f38d73bcb5f22e2ca7acd64f01
Reviewed-on: https://go-review.googlesource.com/21965
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-13 17:25:25 +00:00
Dominik Honnef 446a18e709 go/buildutil, cmd/guru: extract overlay context into buildutil
This extracts the overlay context and archive parsing from guru into
buildutil.

At least one tool (gogetdoc) has a vendored copy of this code already,
and more tools implementing the same functionality will follow.

The new code in buildutil is an almost identical copy of the code in
guru (names aside), except for the following changes:

- Instead of reading into a bytes.Buffer, we read directly into a []byte
  of appropriate size

- sameFile first attempts a simple comparison of path.Clean'ed paths.

Change-Id: I97cd978ccc10722e3648e5e10625fa7f1407f202
Reviewed-on: https://go-review.googlesource.com/21805
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-13 01:11:48 +00:00
Robert Griesemer b9ac36caf8 go/gcimporter15: match https://golang.org/cl/21896/
Change-Id: I1cd7a77617658c057c863bd311470f1f22062aee
Reviewed-on: https://go-review.googlesource.com/21900
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-12 19:34:05 +00:00
Alan Donovan 51487f711d x/tools: remove remaining files tagged for Go 1.4
(accidentally omitted from https://go-review.googlesource.com/20810)

Change-Id: Ib6ee4b2e43b6f32c5c0c031910087cc39d5c5d14
Reviewed-on: https://go-review.googlesource.com/21862
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-04-12 18:58:24 +00:00
Dmitri Shuralyov d601baae9c go/vcs: apply test style improvements from cmd/go
Apply style improvements to TestFromDir from golang/go@b6cd6d7d32,
in order to keep them in sync.

Check for error when creating a directory, its successful existence is a
precondition for the test to run.

Helps golang/go#11490.

Change-Id: I87054114c84aead96977f603ca3bd9eccfcfbd5e
Reviewed-on: https://go-review.googlesource.com/21795
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2016-04-12 07:00:54 +00:00
Dmitri Shuralyov 13c24a6d6a go/vcs: report correct directory for 'no version control'
Apply golang/go@b99fdb2a11.

Updates golang/go#6175.
Helps golang/go#11490.

Change-Id: I897bac1bac94b53e950cb5cf5e572d25a7c5996b
Reviewed-on: https://go-review.googlesource.com/21342
Reviewed-by: Andrew Gerrand <adg@golang.org>
2016-04-08 03:23:12 +00:00
Robert Griesemer 83f918d66b go/gcimporter15: update gcexporter to match gc export format
Change-Id: Icd84cbef6463ba584a2a29f01b23c7e4542d0101
Reviewed-on: https://go-review.googlesource.com/21618
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-06 22:12:38 +00:00
Robert Griesemer adaaa07486 x/tools: delete x/tools/go/types and dependent packages/client files
Per https://groups.google.com/forum/#!topic/golang-announce/qu_rAphYdxY
this change deletes the packages

  go/exact
  go/gccgoimporter
  go/gcimporter
  go/importer
  go/types
  cmd/vet

from the x/tools repo and any files depending on those packages
building against Go 1.4.

x/tools packages depending on any of these libraries must use the
respective versions from the std lib or use vendored versions if
building against 1.4.

Remaining packages may or may not build against Go 1.4 anymore
and will not be supported against 1.4.

Change-Id: I1c655fc30aee49b6c7326ebd4eb1bb0836ac97e0
Reviewed-on: https://go-review.googlesource.com/20810
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-06 21:52:49 +00:00
Robert Griesemer 44f369b779 gco/gcimporter15: update importer to match new gc binary export format
This is simply a copy of std lib's go/internal/gcimporter/bimport.go
with updated header comment and build tag. No semantic changes.

This will fix part of the x/tools build break at tip. The other part
is to adjust bexport.go (next CL).

Change-Id: Ibc37fae7e0d0447fdea9e3a733aa38589735c59a
Reviewed-on: https://go-review.googlesource.com/21543
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-05 20:22:26 +00:00
Alan Donovan 6361b5799a go/pointer: clarify a comment
Change-Id: Ia434ca4e7259cdb9a6f50d51432977fd31be27db
Reviewed-on: https://go-review.googlesource.com/21391
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-04-01 17:12:30 +00:00
Alan Donovan 84e7bc0dd3 go/loader: don't pass ldflags to cgo
Although these flags are harmless on linux, they
cause clang on darwin to issue an error about
unused flags (-lpthread).  We only care about compilation
so we don't need them.

Change-Id: I0fc756e2f4d7a829d43b5aa912c4e4b24a802a1c
Reviewed-on: https://go-review.googlesource.com/21283
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-29 18:37:41 +00:00
Alan Donovan 0ed9f242ee go/loader: update stdlib test after changes to stdlib
The os/user.lookup function no longer exists so instead we use
os/user.current.  (This function also existed in go1.5.)

Change-Id: Ic66d80acc186289331f1023e0145370feab6a001
Reviewed-on: https://go-review.googlesource.com/21281
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-29 16:31:44 +00:00
Alan Donovan 0d7417cc02 go/pointer: disable analysis of runtime package
It has few interesting effects on aliasing and it contains a lot of
unsafe code that we can't analyze.

Change-Id: I66d3592ea7797802c6be36eb30fd17e2ee307e50
Reviewed-on: https://go-review.googlesource.com/21260
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-29 16:14:39 +00:00
Akihiro Suda 681404b4b2 go/loader: support pkg-config
Fix golang/go#13526

Signed-off-by: Akihiro Suda <suda.kyoto@gmail.com>

Change-Id: I015a3777c345ec06455ebf275c6acc246e8be73d
Reviewed-on: https://go-review.googlesource.com/21121
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-29 01:50:51 +00:00
David R. Jenni c6be41b91f go/ast/astutil: add merging pass to AddImport and AddNamedImport.
After inserting an import, merge all import declarations.

Fixes golang/go#14075.

Change-Id: I17fceb60f490deced2ee8eadf78091720580ffa1
Reviewed-on: https://go-review.googlesource.com/19828
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-03-27 21:31:10 +00:00
Dominik Honnef 361bcb2be3 all: address vet issues, fix print calls
This fixes some print calls with wrong format directives. Additionally,
struct initialisers were changed to use keyed fields, purely to reduce
the amount of noise generated by go vet.

Change-Id: Ib9f6fd8f2dff7ce84826478de0ba83dda9746270
Reviewed-on: https://go-review.googlesource.com/21180
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-03-27 20:36:34 +00:00
Idora Shinatose 3b9441cce4 go/importer: fix doc typo
Fix the following issue detected by golint:

	import.go:9:1: package comment should be of the form "Package importer ..."

It makes the package comment more consistent with other packages.

Change-Id: I1415066c136ce249af19d70848a38203caf7c9c7
Reviewed-on: https://go-review.googlesource.com/21177
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-03-26 09:02:56 +00:00
Alan Donovan fcde77432e go/gcimporter15: create dummy "anyType" to fix breakage
The previous CL added a duplicate InvalidType to the predecl table so
that it tracked the one used by gc, but this caused it to fail an
assertion of uniqueness, and I ran the wrong tests.

Change-Id: I56342046cea328e503d917127f5b12205df7999a
Reviewed-on: https://go-review.googlesource.com/20870
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-18 17:20:55 +00:00
Alan Donovan 8a9be374d7 go/gcimporter15: support invalid types and constants in binary export data
Although invalid types and unknown constant values should never appear
in .a files (since gc will stop with an error before writing export
data), they can now be faithfully encoded and decoded.  This makes the
protocol robust for IDE-like applications that must deal with incomplete
or incorrect programs.

(Corresponding std lib CL: https://go-review.googlesource.com/20828)

Change-Id: I539ffd951b90f01705a7f23ec778c623c729d9a0
Reviewed-on: https://go-review.googlesource.com/20827
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-18 16:35:36 +00:00
Alan Donovan 758728c4b2 go/ssa/interp: add no-op intrinsic for sync.runtime_notifyListCheck
Change-Id: Iece2511253c0ab361cdc493ab954a2e7f6aeaeac
Reviewed-on: https://go-review.googlesource.com/20760
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-16 14:58:28 +00:00
Robert Griesemer f42ec616d3 go/gcimporter15: require go1.6 for binary import/export (fix build)
The binary import/export functionality depends on go/constant from
go1.6 - make it only available if we build against go1.6. Eventually
this packet will be replaced by std lib go/importer functionality.

Change-Id: If96cf2e889daf1250152d7719afa64ad1ba8fb0e
Reviewed-on: https://go-review.googlesource.com/20716
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-15 20:04:44 +00:00
Robert Griesemer cac5711748 go/gcimporter15: update build tag for binary import (fix build for 1.6)
Also: renamed file to match 1.7 tag.

Fixes golang/go#14824.

Change-Id: Iea92292d93c1140e3396678bc37f50f0348e616a
Reviewed-on: https://go-review.googlesource.com/20694
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-15 01:10:22 +00:00
Robert Griesemer 48737e9c89 go/gcimporter15: update import/export to match std lib at tip
This change copies the respective changes from https://golang.org/cl/20605.

There is a format conflict here - we are going to track tip, not 1.6.
This change should fix the issue when testing against tip.

Fixes golang/go#14824.

Change-Id: I58e79cc65748e7a3e5c8486c6cee339884110a07
Reviewed-on: https://go-review.googlesource.com/20693
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-15 00:34:34 +00:00
Alan Donovan 3d26f6847a go/ssa: make *BuilderMode satisfy flag.Value
The BuilderModeFlag function does not work with flag packages (such as
Google's) that define their own FlagSet.  This change exposes a type
that satisifies flag.Value insted of a function.  That type
is *BuilderMode; there's no need for a separate wrapper type.

Change-Id: I8095b80de499e3c52a29a5c1996d1b1fe3799358
Reviewed-on: https://go-review.googlesource.com/20330
Reviewed-by: Michael Matloob <matloob@golang.org>
2016-03-07 22:18:09 +00:00
Alan Donovan 2336c53cf0 cmd/guru: compute referrers as packages are type checked
This CL makes little observable difference to the behavior but paves the
way for streaming 'referrers' and (later) 'implements' queries which
scan the entire workspace, but print each result as soon as it is found.

The go/loader package now exposes a hook, AfterTypeCheck, that lets
clients inspect each package as soon as it is type-checked, and also
modify it, for instance to release unneeded data structures.

A 'referrers' query applied to an exported object must scan the entire
workspace.  It uses this hook so to gather uses of the query object in
streaming fashion.  However, for now, it still accumulates the results
and prints them all at the end, though I propose to change that in a
follow-up.

Code details:
- The referrers logic had a 2-iteration loop to load first the query
  package and then if necessary the enlarged program.  The second
  iteration has now been unrolled and split into globalReferrers.
- Queries for package names (whether in a package declaration or
  a qualified identifier) have been split off into packageReferrers.
  It now loads all direct importers of the query package,
  which catches some references that were missing before.
  (It used to inspect only the forward dependencies of the query
  package.)

Also:
- Referrers.Pos (the position of query identifier) was removed from the
  JSON output.  It's a nuisance to compute now, and it's already
  absent from the plain output.
  (In a follow-up, I plan to simplify the information content of the
  JSON output exactly what is currently printed in the plain output.)

Change-Id: Ia5677636dc7b0fe4461a5d393107665757fb9a97
Reviewed-on: https://go-review.googlesource.com/19794
Reviewed-by: Daniel Morsing <daniel.morsing@gmail.com>
2016-03-04 21:13:08 +00:00
Alan Donovan 3dafbd1ba4 go/types/typeutil: make IntuitiveMethodSet(*C) nonempty for concrete types C
This fixes a bug in guru describe.

Also, add a test of IntuitiveMethodSet.

Change-Id: Ied3780807afd88e664fdb186619499670529fe33
Reviewed-on: https://go-review.googlesource.com/20166
Reviewed-by: Daniel Morsing <daniel.morsing@gmail.com>
2016-03-03 19:43:35 +00:00
Alan Donovan 2f1d035a8a go/gcimporter15: BExportData: inverse of BImportData
+ test

Change-Id: I8db03e19ebb4cf3888f259457aaa3c931da23f24
Reviewed-on: https://go-review.googlesource.com/20109
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-03-02 22:33:32 +00:00
David R. Jenni e852fdd89f go/ast/astutil: add function DeleteNamedImport.
DeleteNamedImport deletes the import with a given
name and path from a parsed file, if present.

imports uses this function to delete named imports.

Fixes golang/go#8149.

Change-Id: I84539d5627191c45f06db2d008507aee4d3b1eb2
Reviewed-on: https://go-review.googlesource.com/19951
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-02-26 17:37:10 +00:00
Robert Griesemer 06f9f0dd88 go/gcimporter15: backport latest changes to binary export format (fix build)
This is the gcimporter/bimport.go part of:

https://go-review.googlesource.com/19627

Also, fixed a type that was fixed in gcimporter/bimport.go before.

TBR=adonovan

Change-Id: I0be8549f6ea8c199842623284091499abf698322
Reviewed-on: https://go-review.googlesource.com/19926
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-02-26 01:18:04 +00:00
David R. Jenni 108746816d go/ast/astutil: keep comment position for existing imports.
Fixes golang/go#10337.

Change-Id: Ia21547bb57790c077ca01a2ad656086da3f2ba8a
Reviewed-on: https://go-review.googlesource.com/19822
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-02-23 17:36:30 +00:00
Alan Donovan 9aae8f06b5 go/loader: update comment
CL 18580 (Jan 12) made the loader cache non-blocking.

Change-Id: I8f280dbd405bd9b19a201191a4a987f13d862300
Reviewed-on: https://go-review.googlesource.com/19830
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-02-22 20:28:10 +00:00
Alan Donovan ba766134cc go/buildutil: add ExpandPatterns utility
This will be used by the guru command's -scope argument.

+ test

Change-Id: I5bf38b544809e4518e2c22a73ec3349a5d2c09fc
Reviewed-on: https://go-review.googlesource.com/19746
Reviewed-by: Michael Matloob <matloob@golang.org>
2016-02-22 20:15:22 +00:00
Alan Donovan ee6079c0ac go/buildutil: add (*TagsFlag).Get method to satisfy Getter interface
Change-Id: I8a52a1cc006608ff87d1436d14c836b6e9c7d6d4
Reviewed-on: https://go-review.googlesource.com/16810
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-02-21 00:49:10 +00:00
Alberto Donizetti a17fa845d7 go/gcimporter15: add missing argument to error message
Backport of Change 19641

Change-Id: Ic386cc8ecc006a2cd96c5ac3ff00f3d314873fd3
Reviewed-on: https://go-review.googlesource.com/19643
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-02-18 21:23:36 +00:00
Alan Donovan cadb821a95 cmd/guru: don't panic on *ast.Bad{Decl,Stmt,Expr}
These nodes are common in incomplete programs.

Change-Id: Iff9750050c78762f0cb8bebc7739584c197d661e
Reviewed-on: https://go-review.googlesource.com/19509
Reviewed-by: Michael Matloob <matloob@golang.org>
2016-02-15 21:39:56 +00:00
Robert Griesemer 7ed774bdc0 go/gcimporter15: interpret relative srcDir relative to cwd
This is a backport of the respective changes in golang.org/cl/19393.

For golang/go#14215.

Change-Id: I8d60dd6daa827a60597f3af925e6732914537319
Reviewed-on: https://go-review.googlesource.com/19394
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-02-10 17:55:37 +00:00
Alan Donovan 02f1928320 go/loader: ignore (*build.Package).Goroot flag when handling "unsafe"
For the default build.Context, the Package.Goroot flag indicates when a
package was loaded from the standard library.  Until now, the loader
used it to enable the typechecker's intrinsics for the "unsafe" package.
This seemed like a good check, but it is troublesome for clients that
use a nonstandard build.Context.  For example, if a client defines
nonstandard Context hooks that load all packages, whether standard or
user-defined, from a flat sstable, there is no way for those hooks to
indicate which packages should have this flag set and which not.  As a
result the contents of the "unsafe" package directory are treated as Go
source code when they are merely documentation.

Change-Id: Iea0a7cc9877507d73606391293971a28279c4e4b
Reviewed-on: https://go-review.googlesource.com/19188
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-02-05 00:45:20 +00:00
Brad Fitzpatrick b47dfd93e5 all: fix plan9 failures
Updates golang/go#11811

Change-Id: I6ed252eb3272354fce8084ec99f4777e41c3daa3
Reviewed-on: https://go-review.googlesource.com/18993
Reviewed-by: Chris Broadfoot <cbro@golang.org>
2016-01-28 00:31:03 +00:00
Brad Fitzpatrick 2fd075ed02 all: skip slow tests in short mode
Updates golang/go#14113
Updates golang/go#11811

Change-Id: I61851de12ff474d3b738fc88f402742677973cae
Reviewed-on: https://go-review.googlesource.com/18992
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-28 00:14:01 +00:00
Mikio Hara 09dc3ef4c7 go/gcimporter15: fix build
This change prevents test code to slip into package gcimporter15 and
fixes a weird situation that the test passes but the package doesn't
exist.

For example, we can see the situation with Go 1.6 like the follwoing:

go build
./gcimporter_test16.go:20: undefined: MustHaveGoBuild
./gcimporter_test16.go:45: undefined: testPath

go test
PASS
ok  	golang.org/x/tools/go/gcimporter15	0.896s

Change-Id: I95550574ccd1b2273072c700c28a82c791c16c63
Reviewed-on: https://go-review.googlesource.com/18950
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-27 07:08:15 +00:00
Mikio Hara 7421583666 go/vcs: drop support for Google Code Project Hosting
The hosting service was shut down on January 25, 2016 and a few tests
started to fail like the following:

=== RUN   TestRepoRootForImportPath
--- FAIL: TestRepoRootForImportPath (2.47s)
	vcs_test.go:129: RepoRootForImport("code.google.com/p/go"):
unable to detect version control system for code.google.com/ path
FAIL

This change drops support for code.google.com and fixes test. See
http://google-opensource.blogspot.jp/2015/03/farewell-to-google-code.html
for further information.

Fixes golang/go#14105

Change-Id: I87cb9a3d666c2a1af0f8bf39a66ba0f669c99fd5
Reviewed-on: https://go-review.googlesource.com/18951
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-27 00:23:28 +00:00
Alan Donovan f3a63969dd go/gcimporter15: fix build for go1.4
Change-Id: I0b2650bbb2bf35d7895e1a808cfb45f7f0194ea9
Reviewed-on: https://go-review.googlesource.com/18822
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-21 22:50:50 +00:00
Robert Griesemer d2e00652ba x/tools: fix build
Change-Id: I02b42abcc29ee04c8f54dc8ba2c6079b3e6c4153
Reviewed-on: https://go-review.googlesource.com/18816
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-01-21 22:29:25 +00:00
Robert Griesemer 7912bef4df go/gcimporter15: only test binary export when running against Go 1.6
Also: rename setname15.go to setname.go for consistency

Change-Id: I3f7e37ef4ade716ce64674edb4d53a543a1150c5
Reviewed-on: https://go-review.googlesource.com/18772
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-01-20 21:48:19 +00:00
Robert Griesemer e6d5370703 go/gcimporter15: implement types.Package.SetName for Go 1.5
This makes gcimporter15 build against Go 1.5.

Change-Id: I14e7ff80b28d99f996abc19a0a74b08e5e1bbd75
Reviewed-on: https://go-review.googlesource.com/18771
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-01-20 21:18:18 +00:00
Robert Griesemer 2fb4b8bc95 go/gcimporter15: use latest std/lib gcimporter code
Change-Id: Ia497e56084cf262510461b7e94296570ca8e2049
Reviewed-on: https://go-review.googlesource.com/18770
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-01-20 20:18:03 +00:00
Dmitri Shuralyov 5804fef4c0 x/tools/go/vcs: fix FromDir returning bad root on Windows
Import path is a '/'-separated path. FromDir documentation says
on return, root is the import path corresponding to the root of
the repository. On Windows and other OSes where os.PathSeparator
is not '/', that wasn't true since root would contain characters
other than '/', and therefore it wasn't a valid import path
corresponding to the root of the repository. Fix that by using
filepath.ToSlash.

Add test coverage for root value returned from FromDir, it was
previously not tested.

Additionally, remove a dubious statement from the documentation
"(thus root is a prefix of importPath)". There is no variable
importPath that is being referred to. It's also redundant and
confusing. Without it, the description of root value matches
the documentation of RepoRoot.Root struct field:

	// Root is the import path corresponding to the root of the
	// repository.
	Root string

Fixes golang/go#7723.

Change-Id: If9f5f55b5751e01a7f88b79d9b039402af3e9312
Reviewed-on: https://go-review.googlesource.com/18461
Reviewed-by: Chris Manghane <cmang@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-19 15:45:24 +00:00
Kenji Kaneda 3c782264fb go/types: fix a comment of Named.Obj
// TypeName returns ...
-> // Obj returns ...

Change-Id: I2ac6133a703ec2c4b2045d4bdf9acc70049f0e1e
Reviewed-on: https://go-review.googlesource.com/18704
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-01-16 17:31:34 +00:00
Alan Donovan 5a2875abe7 go/loader: reduce contention for findPackage mutex
...by making the cache non-blocking and duplicate-suppressing.

(The bottleneck was introduced while adding vendoring support.)
This reduces the 95th percentile map shard time for type-checking 120K
packages to 8min from 20min.

Also: move the I/O-limiting counting semaphore and the NoGoError check
from FindPackage to findPackage so that all implementations benefit.

Change-Id: I43527122262cf80475dd3212d78c340e1c71e36c
Reviewed-on: https://go-review.googlesource.com/18580
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-13 18:09:25 +00:00
Alan Donovan ae186f56a2 go/loader: don't treat unsafe specially wrt vendoring
The loader treats GOROOT's "unsafe" package specially,
with no source files and a Package of types.Unsafe.

Tested on Go 1.4.1, 1.5, and ~1.6 (tip).

Fixes issue #13882

Change-Id: I86c4e394665d86a50ec3852d6d702f0e9c5d2276
Reviewed-on: https://go-review.googlesource.com/18457
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-08 20:29:04 +00:00
Alan Donovan 1fb1f857ac go/loader: use Skipf in test
(late response to comment in review of CL 18452)

Change-Id: I1fa80fd1c7fd22cec752c839d20a483e0732337c
Reviewed-on: https://go-review.googlesource.com/18454
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-01-08 19:32:38 +00:00
Alan Donovan 10712091e1 tools: fallout from flipped sense of build.IgnoreVendor flag
(See https://go-review.googlesource.com/#/c/18450)

Details:
- delete buildutil.AllowVendor flag.
  Instead use unexported 'go16' var in each package that needs it.
- delete buildutil.StripVendor; was never needed.
- remove inapplicable vendoring comments from loader14.go
- importgraph: go1.5: don't bother checking for 1.6 before calling
  absolutize (minor simplifiication and deoptimization).

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

Change-Id: If692b0df2eb6c120a9c09d7b1ed99f1b4c6b0826
Reviewed-on: https://go-review.googlesource.com/18452
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-08 18:54:48 +00:00
Alan Donovan 4747062949 go/gcimporter15: a copy of go/gcimporter using go1.5 std go/types
Because the std go/importer's Lookup functionality is incomplete,
clients have no way to create a Go 1.5 types.Package from an io.Reader
reading from gc export data.  This package provides a stopgap until
the standard library is complete.

The go/gcimporter package remains unchanged, and uses only the
golang.org/x/tools/go/types package.

Change-Id: I47a817f4b6a52ddab26c6b01de6e28099301faf5
Reviewed-on: https://go-review.googlesource.com/18382
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-07 18:06:54 +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
Alan Donovan 2477c0d578 x/tools/...: fork and tag !1.5 all files that use go/types et al
This change will ensure that the tree continues to work with go1.4.1.

All files continue to depend on golang.org/x/tools/go/types, but in a
follow-up change, I will switch the primary files to depend on the
standard go/types package.  Another (smaller) set of files will be
forked and tagged, this time !1.6, due to API differences between the
two packages.

All tests pass using 1.4.1, 1.5, and ~1.6 (tip).

Change-Id: Ifd75a6330e120957d646be91693daaba1ce0e8c9
Reviewed-on: https://go-review.googlesource.com/18333
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-06 20:40:09 +00:00
Alan Donovan 8f90b5e560 go/ssa/interp: remove stale TODO
Followup to TBR'd change https://go-review.googlesource.com/#/c/18191/.

Change-Id: I7d6957a46aea00cfe0b734576b5392d578ee06d9
Reviewed-on: https://go-review.googlesource.com/18326
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-01-06 19:24:01 +00:00
Alan Donovan c49318f04a go/ssa/interp: make os.Pipe intrinsic POSIX-portable; disable on Windows
Change-Id: I6c2f495c7c75f86590a0d79f86423ca67d695347
Reviewed-on: https://go-review.googlesource.com/18325
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-06 19:21:02 +00:00
Alan Donovan 0f870d4d86 go/loader: fix interaction of cwd and vendor
Packages specified on the command line should be interpreted relative to
cwd iff they are local (e.g. ./http within $GOROOT/src/net), otherwise a
request for, say, "golang.org/x/net/http2/hpack" might return the vendored
package depending on the working directory.

The FindPackage hook function now takes a build.ImportMode parameter, so
it matches the signature of (*build.Context).Import.  The AllowVendor
flag is enabled only for imports within source files, but not for the
initial packages.

+ test.

Change-Id: I756dc46b70928d2fd9f824e6670092d8169e0d64
Reviewed-on: https://go-review.googlesource.com/18318
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-01-06 18:28:16 +00:00
Alan Donovan 3a85b8da38 refactor/importgraph: reduce I/O concurrency to avoid EMFILE
Use an concurrency-limiting semaphore to reduce I/O parallelism in Import.

Also, start the producer in a new goroutine so that it runs in parallel
with the consumer.  Paradoxically, this reduces the peak number of
goroutines.

Also, in buildutil.ForEachPackage, make the concurrency limiting
semaphore global, since I/O parallelism is a process-wide resource.

Change-Id: I282b717c50603361826e5675077c9f464c874132
Reviewed-on: https://go-review.googlesource.com/18215
Reviewed-by: Michael Matloob <matloob@golang.org>
2015-12-30 22:01:03 +00:00
Alan Donovan b2a7698651 go/loader: in stdlib_test, remove workaround for lack of vendoring
Change-Id: I058081ef596e8b5231321ef05d5256ec44cc58c6
Reviewed-on: https://go-review.googlesource.com/18214
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-30 16:37:28 +00:00
Alan Donovan a09dffbb6c go/vcs: workaround EOF bug in token-based XML decoder
...using same logic as in $GOROOT/go/src/cmd/go/discovery.go

See issue #13757

Change-Id: I2ace0abed0743f4a8675fa8780e190d640b57e6c
Reviewed-on: https://go-review.googlesource.com/18196
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-12-29 20:27:04 +00:00
Dmitri Shuralyov 157f8abbbd go/vcs: accept domain.root in RepoRootForImportDynamic
This is the same change as in https://golang.org/cl/12193.

Fixes golang/go#13506.

Related to golang/go#9357.

Change-Id: I9c7d956008641b1907e14bcb08198235f5f9552f
Reviewed-on: https://go-review.googlesource.com/18152
Reviewed-by: Russ Cox <rsc@golang.org>
2015-12-29 15:00:21 +00:00
Alan Donovan 2b78567943 go/loader: fix tests to work at go1.5 and tip
Change-Id: Icc80f112a7ec4b64519220c57b6ccb2612166656
Reviewed-on: https://go-review.googlesource.com/18197
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-28 22:42:32 +00:00
Alan Donovan b14dd1a5b7 go/importer: in TestImportStdLib, skip 2 packages that use vendoring
(See issue #13756)

Change-Id: Icda14c34f3460e941ae092f147432c795465a077
Reviewed-on: https://go-review.googlesource.com/18195
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-28 21:28:10 +00:00
Alan Donovan 9b7a39c6be go/loader: fix brittle example test
We need a better approach for tests such as these.

Change-Id: I6fb608acc096088fe377f6f2c40ff6124cf3d09c
Reviewed-on: https://go-review.googlesource.com/18194
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-28 21:24:47 +00:00
Alan Donovan 8463610142 go/ssa/interp: enable support for Example tests
1. Added intrinsic for os.Pipe to avoid use of "unsafe".  This makes
   Example tests work in the interpreter, fixing the broken "unicode"
   package (which recently sprouted some Examples) and allowing us to
   enable tests for:

      encoding/csv
      flag
      path
      text/scanner
      unicode/utf8

   The implementation of os.Pipe may require tweaking for non-Linux platforms.

2. Added intrinsic for strings.Index to avoid assembly dependency.

3. Added dumb intrinsic for testing۰runExample to work around a bug in
   go/ssa/testmain.go that requires an invasive fix
   (Until then, the output of Example functions will not be checked.)

Change-Id: I6374c9c47aa802275b7cdc98525e057f5db0615a
Reviewed-on: https://go-review.googlesource.com/18191
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-28 21:19:28 +00:00
Alan Donovan e3e5aae018 go/types: in TestStdlib, skip 2 packages that use vendoring
(gcimporter does not support vendoring---see issue #13756)

Change-Id: Ief4101e4f33007d497ed1519845febfcffdded38
Reviewed-on: https://go-review.googlesource.com/18193
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-28 21:04:49 +00:00
Alan Donovan f75338cbc6 go/types: skip two failing $GOROOT/test/fixedbugs tests
Change-Id: I7dfb95f34ae23c0b7905714b32068dc336a05656
Reviewed-on: https://go-review.googlesource.com/18192
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-12-28 19:40:50 +00:00
Alan Donovan d6e83e534d go/loader: changes for vendor support
Prior to this change, the loader made the simplifying assumption
that an import path is equal to a package path, that is, a
subdirectory of src/.  (This assumption was already false because
relative imports "../foo" are possible, though discouraged.)
Now, an import "foo" may denote "a/vendor/foo" or "b/vendor/foo"
depending on whether it appears beneath a/ or b/.  Thus import
paths and package paths are no longer the same, and the directory
containing an import declaration is a necessary input to the
import resolution function.

This change makes the loader hygienic w.r.t. the directory of
each import declaration, and cleans up the terminology.
The only API change is to the FindPackage hook, which most
clients never use.

Details:
- Add a 'fromDir string' parameter to the FindPackage hook function.
- Add a dir field to each PackageInfo.
- doImport (called by go/types) now consists of two steps:
  use FindPackage(dir, importPath) to locate the package,
  then consult the import map using the canonical package path.
  Only the first step can fail.
- Memoize FindPackage.
- Simplify importInfo now that it no longer has to deal with errors.
  Replace a condition variable with a channel.
- Use a separate type to report importErrors.
- Rename loadAll to importAll
- Delete the importMode constant.
- Test.

Change-Id: I3defab51bfa12b48b1511a2172fb48dc8e9150e6
Reviewed-on: https://go-review.googlesource.com/18053
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-12-22 18:31:24 +00:00
Alan Donovan 27534aa951 go/buildutil: changes for vendor support
Add AllowVendor constant for convenience across x/tools.
 (Will delete go/loader's importMode later)
Add StripVendor utility function + test.

Change-Id: I885076cb4ea67588996d85b749b85f49cd619f0d
Reviewed-on: https://go-review.googlesource.com/18049
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-12-18 20:00:43 +00:00
Alan Donovan 42bc1282f3 go/loader: update example_test for Go1.6
Change-Id: Ib3bf913e3c8f3cf06ba855f8dda855453e0a1aa2
Reviewed-on: https://go-review.googlesource.com/18048
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-18 18:15:14 +00:00
Russ Cox 34ae141ecc go/loader: use build.AllowVendor during Import on Go 1.6 and later
Makes programs like ssadump work on packages using vendored code,
for example net/http.

For golang/go#12278.
Depends on CL 17726 in main repository.

Change-Id: Ibabf564e397044a0f449087124dd96161081baaf
Reviewed-on: https://go-review.googlesource.com/17727
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-12-17 20:34:07 +00:00
Brad Fitzpatrick 1cdaff4a02 go/types: fix build
Fixes golang/go#13603

Change-Id: Ie35094e9fd9976317340fae19425bffa307d7c8a
Reviewed-on: https://go-review.googlesource.com/17753
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-12-14 01:42:23 +00:00
David Symonds e842f6af3a go/types: Remove ancient Go 1.1 compatibility indirections.
Change-Id: Ie16cc01ea2bd4806eaa7bd77cfbd2fa90f11ea36
Reviewed-on: https://go-review.googlesource.com/17792
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-12-14 00:47:24 +00:00
Alex Brainman fff8fd7b19 go/buildutil: ignore path letters case in ContainingPackage on windows
Fixes golang/go#13368

Change-Id: I4cee2078bc64b6f175f206daa9609246cc1b1f85
Reviewed-on: https://go-review.googlesource.com/17211
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-11-25 03:21:30 +00:00
Alan Donovan 977844c7af go/ssa: fix crash when building map[*struct{}]bool{{}: true}
Since Go 1.5, if a key expression in a map literal is itself a composite
literal, the type may be omitted.  An & operation may be implied,
but was not generated, resulting in a type mismatch crash.

Added regression test.
Also, added missing intrinsic math.hasSSE4 to interpreter.

Fixes issue 13341

Change-Id: I6a5e560460cdcac295a500a3fc3738cbe8aa5853
Reviewed-on: https://go-review.googlesource.com/17123
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-11-23 19:08:17 +00:00
Dmitri Shuralyov 747ae2594e go/buildutil: Fix example code for TagsFlag.
The example incorrectly used buildutil.TagsDoc identifier which does not
exist. It should be buildutil.TagsFlagDoc instead.

The issue was introduced in https://golang.org/cl/9172 when this code was
first written.

Also use more idiomatic style for Go comments, '//' followed by a space,
then tab (instead of skipping the space). Although both render correctly
in godoc, this form is more correct and consistent.

Change-Id: I3b3c9767fe313106a8ff81e7887f3241c5806b59
Reviewed-on: https://go-review.googlesource.com/16743
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-11-09 14:36:24 +00:00
Alan Donovan 0f9d71c428 go/pointer: fix bug in constraint generation of "for _, v := range map"
+ regression test

Change-Id: I9ec28f222e14af0cb737494e3c48e5423cdcf236
Reviewed-on: https://go-review.googlesource.com/16294
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-10-26 16:28:05 +00:00
Daniel Morsing b6b32a4fbf go/ssa: emit DebugRefs for x, y = z() assignments
This would cause oracle callee lookup failures when the RHS is an
invoke-style call.

Fixes golang/go#12999

Change-Id: Ifd561c4e7bf26f57ace5f62afac746b926c70993
Reviewed-on: https://go-review.googlesource.com/16210
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-10-23 10:25:05 +00:00
Brad Fitzpatrick 4caddfa68c go/vcs: fix doc typos
Change-Id: Ife1f9534d08d3bd9beeb4e6e798733d71e6f72b5
Reviewed-on: https://go-review.googlesource.com/15750
Reviewed-by: Dmitri Shuralyov <shurcool@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-10-10 23:46:02 +00:00
Alan Donovan 9d2ff756b7 go/loader: document cgo limitation
Change-Id: I8ce744d204fe2850d322b3095d04e8a399984983
Reviewed-on: https://go-review.googlesource.com/15391
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-10-05 16:43:58 +00:00
Alan Donovan 8049553ca8 go/ssa: use sync.Once instead of sync.atomic
This adds a missing memory barrier at the end of Package.Build.

Change-Id: Ife35d5ad5a48ba121f35656fef682863d4f2aef6
Reviewed-on: https://go-review.googlesource.com/14761
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-09-18 15:11:51 +00:00
Alan Donovan afcda55b39 go/ssa: rename some API features (incompatible change)
Rename the following exported names:
	(*Program).BuildAll → Build
	(*Program).Method   → MethodValue
	Package.Object      → Pkg
Also:
	(*Function).pkgobj  → pkg

Change-Id: Iff7e6c240ebe6786ba759278ac0daa3d66698013
Reviewed-on: https://go-review.googlesource.com/14134
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-08-31 22:20:12 +00:00
Alan Donovan b9f1f6a3c1 go/loader: in stdlib_test, skip packages that depend on vendoring
until vendoring support is added (soon).

Change-Id: I954514b5c6b82622c0c831a289ccdcc16dbd37f8
Reviewed-on: https://go-review.googlesource.com/14130
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-08-31 20:55:27 +00:00
Russ Cox 93604a3dc2 go/loader: fix fd leak and limit calls to ioutil.ReadDir
This makes 'ulimit -n 128; go test -short -v' pass.
It did not before, and that was breaking the openbsd/386 builder.

For golang/go#11811.

Change-Id: Idfdb2f4007ed06c6084486c0e58a561add552d2c
Reviewed-on: https://go-review.googlesource.com/13695
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-08-18 23:39:26 +00:00
Robert Griesemer 958ab4f550 x/tools: disable tests not supported on Android
For golang/go#11811.

Change-Id: Icf16a2d47fcf2fe0d79dd825ccb851a3d63a660f
Reviewed-on: https://go-review.googlesource.com/13268
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-08-06 00:36:03 +00:00
Robert Griesemer 874e71548b go/ssa/interp: exclude another long-running test if -short is set
For #11811.

Change-Id: Ic3bf3c035ce402f144b5b6670d5ef062874b167e
Reviewed-on: https://go-review.googlesource.com/13260
Reviewed-by: Chris Manghane <cmang@golang.org>
2015-08-05 21:28:02 +00:00
Robert Griesemer 50fdc6b946 go/loader: exclude example tests from Windows tests
The output of ExampleConfig_CreateFromFiles and ExampleConfig_Import
are different for Windows that for other platforms: They contain
internal/syscall/windows packages and unicode/utf16 not present in
the output for other platforms.

For golang/go#11811.

Change-Id: Id391fbeec8123616da86cb68fc3cefcd513b2493
Reviewed-on: https://go-review.googlesource.com/13032
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-07-31 22:13:26 +00:00
Robert Griesemer 784fe34e06 go/ssa/interp: abort long-running test when testing.Short() is set
This should help on slower machines.

For golang/go#11811.

Change-Id: Ibb5d5bf0f6cedcda6437ef0ee3fc1f4ba89dab90
Reviewed-on: https://go-review.googlesource.com/13009
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-07-31 22:12:02 +00:00
Alex Brainman d89a972634 go/loader: remove blank line
Blank line was inserted by mistake in CL 12830.

Change-Id: I9e4b3562a4efcab43c5a85c2960a0d22c0aab752
Reviewed-on: https://go-review.googlesource.com/12883
Reviewed-by: Dmitri Shuralyov <shurcool@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-07-31 21:22:20 +00:00
Robert Griesemer fe546a3233 go/types: exclude some tests when running against Go 1.4
For golang/go#11811.

Change-Id: I130f9608840177cfb7fb9fae30765fcb5aa77411
Reviewed-on: https://go-review.googlesource.com/13008
Reviewed-by: Russ Cox <rsc@golang.org>
2015-07-31 20:09:52 +00:00
Alan Donovan 14b8253455 go/loader: fork example_test.go for go1.4 since the expectations differ
Change-Id: I91138351525ce49b9afccdc66c59e7a4c1c0e096
Reviewed-on: https://go-review.googlesource.com/12870
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2015-07-30 00:13:23 +00:00
Alex Brainman f25d0131d4 go/loader: make TestLoad_ParseError_AllowErrors pass on windows
Update golang/go#11811

Change-Id: Ic5f1ea87c88d563b6e0ef2d44042e28a9ea03a03
Reviewed-on: https://go-review.googlesource.com/12830
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-07-30 00:12:49 +00:00
Alan Donovan 739a26ae62 go/loader: add paranoid assertions to help diagnose issue 11012
Change-Id: I5e24fe0fb605bdb39de11309e0e3c8ffd7a1eb8b
Reviewed-on: https://go-review.googlesource.com/12842
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-07-29 18:39:32 +00:00
Alex Brainman 166a1118e9 go/loader: update examples Output
Some standard library dependencies have changed (packages and files).
Both ExampleConfig_CreateFromFiles and ExampleConfig_Import Output
needs to be adjusted. Do that.

Update golang/go#11811

Change-Id: I523f2adc1aa46f0932a71ccb23dd7c5a6b07fb27
Reviewed-on: https://go-review.googlesource.com/12832
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-07-29 16:23:00 +00:00
Michal Cierniak 7fe0389f47 go/ssa: update package doc to mention ssautil.CreateProgram
Change-Id: I92fb6cf5683c335826d2e84394cc594639e34fe6
Reviewed-on: https://go-review.googlesource.com/12542
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-07-27 18:48:45 +00:00
Robert Griesemer 1c460ffc92 go/types: run tests that were excluded by mistake
Backport of https://go-review.googlesource.com/#/c/12517/.

TBR=adonovan

Change-Id: I6b010c977c9a770a27c3fa1271c07c38d9b84185
Reviewed-on: https://go-review.googlesource.com/12601
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-07-23 22:55:45 +00:00
Robert Griesemer 88421f4cb2 go/types: unexport UniverseByte/Rune; make Typ a slice
Also: backport https://go-review.googlesource.com/#/c/12443/ .

Change-Id: Ia8a664c627a70a17701b2d48946704c15f4f49c0
Reviewed-on: https://go-review.googlesource.com/12482
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-07-21 18:42:36 +00:00
Robert Griesemer 436a79e5dd go/types: fix internal inInteger operand predicate
Backport of https://go-review.googlesource.com/#/c/12045/

Fixes golang/go#11594.

Change-Id: I3c81e2b1bbdc084d4a323fd963c1c780054ce223
Reviewed-on: https://go-review.googlesource.com/12046
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-07-21 17:32:59 +00:00
Alan Donovan c5ca59aab8 go/loader: issue informative error (not panic) if cgo used in ad hoc package
See https://github.com/golang/go/issues/11627.

Change-Id: I458bc4ea54d0db34f3ba96060d284eda4bad7111
Reviewed-on: https://go-review.googlesource.com/12190
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-07-14 18:01:18 +00:00
Alan Donovan 543085f0ec go/callgraph: add "concurrent" or "deferred" prefix to (*Edge).Description
Fixes golang/go#11518

Change-Id: If6c86c1995c0b6a1226deedaa1713947baa6593a
Reviewed-on: https://go-review.googlesource.com/12085
Reviewed-by: Daniel Morsing <daniel.morsing@gmail.com>
2015-07-13 18:17:08 +00:00
Robert Griesemer 4cd43f3077 go/types: exclude tests that run too long
Backport of the go/types-specific changes of:

https://go-review.googlesource.com/#/c/11673/

(from std repo go/types). This will allow running
the go/types tests again in the x/tools repo.

Change-Id: I97d4664d5aed6309e74b571f86f36f8bb4df4fca
Reviewed-on: https://go-review.googlesource.com/12042
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-07-10 21:57:21 +00:00
Alan Donovan 997b3545fd go/types: change {Type,Object,Selection}String to accept a Qualifier function
The optional Qualifier function determines what prefix to attach to
package-level names, enabling clients to qualify packages in different
ways, for example, using only the package name instead of its complete
path, or using the locally appropriate name for package given a set of
(possibly renaming) imports.

Prior to this change, clients wanting this behavior had to copy
hundreds of lines of complex printing logic.

Fun fact: (*types.Package).Path and (*types.Package).Name are valid
Qualifier functions.

We provide the RelativeTo helper function to create Qualifiers so that
the old behavior remains a one-liner.

Fixes golang/go#11133

Change-Id: Ibd63f639c7b3aa1738826d6165f2d810efeb8293
Reviewed-on: https://go-review.googlesource.com/11692
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-30 19:00:00 +00:00
Alan Donovan 749901c676 go/types: add an API test of the Scope type
Also: make (*Scope).Innermost work for Package scopes.

Change-Id: I9836676e94f95df897101606bed6f29ba46e0f9d
Reviewed-on: https://go-review.googlesource.com/11691
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-29 20:05:11 +00:00
Alan Donovan 27bc91e0ba go/ssa/interp: disable interpretation of packages that have sprouted Examples
since we can't interpret os.Pipe yet.

Change-Id: If27dadc18532274ce97ad7e7557e8614dd15279e
Reviewed-on: https://go-review.googlesource.com/11712
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-29 19:24:15 +00:00
Robert Griesemer e841ad2e00 go/types: fix minor typo in comment
Change-Id: I2d696655c409f94a5ab6a3837b4b83bc7eb0b15d
Reviewed-on: https://go-review.googlesource.com/11366
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-23 21:03:00 +00:00
Robert Griesemer 8c8cd541fa go/types: in string(x) conversions, x must be of integer type
Fixes golang/go#11357.

Change-Id: Id6994a0fe3830cf56d3dbdd60a4dff89404e5a41
Reviewed-on: https://go-review.googlesource.com/11365
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-23 20:21:05 +00:00
Robert Griesemer 6369699504 go/types: better error message for certain unaary/binary expression errors
Fixes golang/go#11367.

Change-Id: Ic7f1bad51165685097c909fd18c245a57924cdc8
Reviewed-on: https://go-review.googlesource.com/11363
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-23 19:43:07 +00:00
Robert Griesemer e9a746de6e go/types: add missing test for constant shifts
Fixes golang/go#11325.

Change-Id: Ic302098fffd337fcfa31274319cdbd78907a6d5d
Reviewed-on: https://go-review.googlesource.com/11344
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-22 22:52:46 +00:00
Robert Griesemer af817890aa go/gccgoimporter: fix tests for Plan9
This is a backport of https://go-review.googlesource.com/#/c/11194/.

Change-Id: I2f8a8efec77a29258c85f5a1b11cd9deb81853d0
Reviewed-on: https://go-review.googlesource.com/11210
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-06-18 00:30:47 +00:00
Robert Griesemer 605d5bf7f5 go/gcimporter, go/types: skip nacl-arm for some tests
Backport of https://go-review.googlesource.com/9674 .

Change-Id: Ie86bea98e910616b2d6a49387b1aed973d4f1c66
Reviewed-on: https://go-review.googlesource.com/11126
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-15 20:50:49 +00:00
Robert Griesemer f9379e5b1f go/types: be robust in the presence of incorrect/missing position info
Fixes go/loader test crash.

TBR: adonovan

Change-Id: I91dba5e001afa0ee188ccea4db904a6ce744c4d0
Reviewed-on: https://go-review.googlesource.com/11042
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-13 01:27:06 +00:00
Robert Griesemer e5c3ebe4c7 go/pointer: fix build (provide correct args to types.NewSignature and types.Eval)
TBR: adonovan

Change-Id: I4b43b566278ede6b780a59f986c0fc392a5ef4ac
Reviewed-on: https://go-review.googlesource.com/11041
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-13 01:08:28 +00:00
Robert Griesemer f389b29208 go/ssa: fix build (remove unused params to types.NewSignature)
TBR: adonovan

Change-Id: I669140d6e0735804625b0327caa51f4e1807d277
Reviewed-on: https://go-review.googlesource.com/11040
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-13 00:57:15 +00:00
Robert Griesemer 136b4e419b go/types: revert most recent change - we cannot rely on 1.5 features quite yet
Revert "go/types: fix Eval to use correct file set when evaluating an expression"

This reverts commit d241a1448b.

Change-Id: Ie16c57da2732d8b079108efef100fc956b71f737
Reviewed-on: https://go-review.googlesource.com/11010
Reviewed-by: David Symonds <dsymonds@golang.org>
2015-06-13 00:06:15 +00:00
Robert Griesemer d241a1448b go/types: fix Eval to use correct file set when evaluating an expression
Change-Id: I221bd26cc90755de57c8f1941cabddd14d56584d
Reviewed-on: https://go-review.googlesource.com/10999
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-12 23:51:01 +00:00
Robert Griesemer b5429ae521 go/types: fix comment (missed in last commit)
Change-Id: I4ea2a6b89b44b11cbcf771d0aab3e30370f59d31
Reviewed-on: https://go-review.googlesource.com/10996
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-12 23:17:17 +00:00
Robert Griesemer ee0cf325b1 go/types: provide full source file extent to file scope
Change-Id: Ib3472ab9e6b5bae0b03474ea57857fde1afbd43a
Reviewed-on: https://go-review.googlesource.com/10995
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-12 23:15:45 +00:00
Robert Griesemer 44761a8f84 go/types: remove unused scope parameter from NewSignature
Change-Id: I93c4185d7eeafde43b6b512b6e574d3332401c09
Reviewed-on: https://go-review.googlesource.com/10994
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-12 23:15:00 +00:00
Robert Griesemer 3c2fc37aec go/gccgoimporter: remove incorrect scope passed to NewSignature
Change-Id: I4b9670dc72ef85b852361aa5524a55b82d88e8f2
Reviewed-on: https://go-review.googlesource.com/10993
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-12 23:06:12 +00:00
Robert Griesemer 568df9f49c go/types: remove global vars in test
Change-Id: I5fb61a38362a40c706ba5cb8968c387c8dc4aef2
Reviewed-on: https://go-review.googlesource.com/10992
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-12 23:05:41 +00:00
Robert Griesemer 665374f1c8 go/types: add pos parameter to Eval; remove New, EvalNode
Scopes now have "extent" information; that is they provide a
range [scope.Pos(), scope.End()) which describes the source
text range covered by the scope. It requires that the incoming
AST has correct position information; also the extent for the
Universe and for package scopes is not set (positions are invalid).

Objects have a new (currently unexported) scopePos position,
which is the position at which the object becomes visible inside
its *Scope.

Scope.LookupParent takes an addition parameter pos. If valid, an
identifier is looked up as if found at position pos. This can be
used to find the object corresponding to an identifier at position
pos after scopes have been completely populated (and thus may
contain the same identifier which may be defined only later in the
source text).

Fixes #9980.

Change-Id: Icb49c44c5c3d4b93c0718ce2a769ec468877709d
Reviewed-on: https://go-review.googlesource.com/10800
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-12 23:04:54 +00:00
Alan Donovan ac303766f5 go/ssa/interp: don't run encoding/pem tests in interpreter
since they use quick.Check, which requires the unimplemented
(reflect.Value).SetString.

Also:
- Add reflect.Type.{In,NumIn} methods, whose absence
  was only the proximate cause of the failed test.
- Delete bodies of reflect.Value methods so that it's obvious a
  function that should be intrinsic is missing.

Change-Id: Ib64b8f4953a913f4ead90e376bda70419adb87cb
Reviewed-on: https://go-review.googlesource.com/10796
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-06-06 15:50:50 +00:00
Robert Griesemer de24c4870a go/types: remove unused return value (minor cleanup)
Change-Id: I37dd83100b7e977e1d5a06ae84a93a40bbd651c3
Reviewed-on: https://go-review.googlesource.com/10773
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-05 18:41:51 +00:00
Robert Griesemer e262ee18f0 go/types/typeutil: add missing copyright notices
Change-Id: I101c033ffc20fde38b0f0b075f559aa10a6e43d0
Reviewed-on: https://go-review.googlesource.com/10772
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-05 18:11:17 +00:00
Robert Griesemer 3f8eecd15b go/types: move MethodSetCache into package go/types/typeutil
Change-Id: Iba5d7c2df533948a5b28373b077cc0476a6745ad
Reviewed-on: https://go-review.googlesource.com/10770
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-06-05 17:34:01 +00:00
Alan Donovan 8ccf558e8a cmd/callgraph: update flag docstring
And add a TODO.

Change-Id: I51c63b32e9ac4309cdfb8228348a5d528f36a919
Reviewed-on: https://go-review.googlesource.com/10489
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-05-29 17:21:31 +00:00
Robert Griesemer 5e9beacd77 go/types: fix error message for embedded non-interface types in interfaces
Backport of https://go-review.googlesource.com/#/c/10466/ .

Change-Id: Ib88a9707ea8ad6e2dbfaeb2edeb586a968abd508
Reviewed-on: https://go-review.googlesource.com/10468
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-05-28 20:04:54 +00:00