The ToText method of Package is the only one with a receiver declared
'p'; all the rest have 'pkg'. Fix it to be consistent.
Change-Id: I2b47c719f4f6f8d87336316b7f80deb1b49e17dc
GitHub-Last-Rev: 7d273b4ef0
GitHub-Pull-Request: golang/go#64912
Reviewed-on: https://go-review.googlesource.com/c/go/+/553335
Run-TryBot: Rob Pike <r@golang.org>
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Reviewed-by: qiulaidongfeng <2645477756@qq.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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When building a package, run the cover tool on the collected go/cgo
source files before invoking swig (if swig files are present), as
opposed to running swig and then cover. Running swig adds new Go files
to the "cgo" list, and we want to avoid running those newly generated
files through the cover tool.
Fixes#64661.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest
Change-Id: I32b6dad5c39fcf5e656c40fb3b44220c69320889
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The order of emitting named type and type aliases in the `Walker`'s
`emitType` function is inverted. When the type alias references a basic
type, this causes a panic as the type assertion on `*types.Named` fails.
This change reorders the logic such that type aliases are emitted prior
to this type assertion.
Fixes#64958
Change-Id: I52dbe13999978912ded788d9cf4948103869bcfa
Reviewed-on: https://go-review.googlesource.com/c/go/+/554076
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The input index to a jump table can be out of range for unreachable code.
Dynamically the compiler ensures that an out-of-range index can never
reach a jump table, but that guarantee doesn't extend to the static
realm.
Fixes#64826
Change-Id: I5829f3933ae5124ffad8337dfd7dd75e67a8ec33
Reviewed-on: https://go-review.googlesource.com/c/go/+/552055
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: David Chase <drchase@google.com>
This support was removed in CL 518776.
For #61422.
Fixes#53327.
Change-Id: I8ad0f76aed5f03e32c4c2c5c0001c3f06beb3c7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/548877
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
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This caused other problems, and for the purposes of the Go 1.22
release, we can just roll back to the Go 1.21 behavior and then
decide in January what the correct path forward is.
Revert of CL 546635.
Unfixes #64282.
Fixes#64738.
For #57001.
This reverts commit e44b8b15b1.
Change-Id: I78753c76dcd0bc6dbc90caa17f73248c42e5f64a
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Reviewed-by: Than McIntosh <thanm@google.com>
Per the discussion on the issue, since no problems related to this
appeared since Go 1.20, remove the ability to disable the check for
anonymous interface cycles permanently.
Adjust various tests accordingly.
For #56103.
Change-Id: Ica2b28752dca08934bbbc163a9b062ae1eb2a834
Reviewed-on: https://go-review.googlesource.com/c/go/+/550896
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This reverts commit https://go.dev/cl/c/go/+/549297
Reason for revert: breaks clang builder
Change-Id: I2321dec9bc1fc20dfafa8a984303b0b5710f8aac
Reviewed-on: https://go-review.googlesource.com/c/go/+/550779
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go get golang.org/x/tools@83bceaf2 # CL 550395
go mod tidy
go mod vendor
Fixes#64786
Change-Id: Ia9879975eb3e8e4130ded7b2d8ba1277b5811eec
Reviewed-on: https://go-review.googlesource.com/c/go/+/550895
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The @feat.00 comment is outdated, as Go does support SEH on
windows/amd64. While here, simplify it and add a link to the
relevant documentation.
Change-Id: I6e3c786ca4f4809baf46015edf569d06b12f1239
Reviewed-on: https://go-review.googlesource.com/c/go/+/550635
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Clang 16 introduced a more aggressive behavior regarding uninitialized
memory in the memory sanitizer.
The new option -fsanitize-memory-param-retval is enabled by default
and makes the test msan8 fail, since it uses an
uninitialized variable on purpose.
Disable this behavior if we are running with clang 16+.
Fixes#64616
Change-Id: If366f978bef984ea73f6ae958f24c8fce99b59fe
GitHub-Last-Rev: 60bd64a8fb
GitHub-Pull-Request: golang/go#64691
Reviewed-on: https://go-review.googlesource.com/c/go/+/549297
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Right shift by 0 has bad semantics. Make sure if we try to right shift by 0,
do a left shift by 0 instead.
CL 549955 handled full instructions with this strange no-op encoding.
This CL handles the shift done to instruction register inputs.
(The former is implemented using the latter, but not until deep
inside the assembler.)
Update #64715
Change-Id: Ibfabb4b13e2595551e58b977162fe005aaaa0ad1
Reviewed-on: https://go-review.googlesource.com/c/go/+/550335
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Right shifts, for some odd reasons, can encode shifts of constant
1-32 instead of 0-31. Left shifts, however, can encode shifts 0-31.
When the shift amount is 0, arm recommends encoding right shifts
using left shifts.
Fixes#64715
Change-Id: Id3825349aa7195028037893dfe01fa0e405eaa51
Reviewed-on: https://go-review.googlesource.com/c/go/+/549955
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When the argument to 'go install' or 'go run' looks like a versioned
package, we make a best effort to switch to a toolchain compatible
with the module containing that package, by fetching its go.mod file
and checking the go version it specifies.
At this point in the code, we have not yet parsed the arguments given
on the command line: instead, we just make a best effort to find one
we can use to select a toolchain version. Since that toolchain may be
newer, the command to install it may also include flags that are only
supported by that Go version — and we don't want to fail due to an
error that would be resolved by switching to a more appropriate
toolchain.
So at this point in the code we can't parse the flags in a way that
will surface errors, but we want to make a best effort to parse the
ones that we know about. It turns out that “parse the flags we know
about” is already a familiar problem: that's also what we do in
'go test', so we can reuse the cmdflag library from that to do the
best-effort pass of parsing.
If it turns out that we don't need to switch toolchains after all,
cmd/go's main function will parse the flags again, and will report any
errors at that point.
This fixes a regression, introduced in CL 497879, which caused
'go install -modcacherw pkg@version' to unset the write bit for
directories created while selecting the toolchain to use.
Fixes#64282.
Updates #57001.
Change-Id: Icc409c57858aa15c7d58a97a61964b4bc2560547
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In gitRepo.stat, we were checking ref != "" twice,
which confused me during casual reading because it made it seem like
the string could be empty when it actually never is.
For #56881.
Change-Id: Ib83303a149ea771399cb55fedd5dfa02ad411ff0
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This works around a bug in 'git http-backend' that was fixed in
Git 2.34.0,¹ and will hopefully allow the tests in
cmd/go/internal/modfetch/codehost to pass reliably using older
Git releases (I tested with 2.30.2).
¹ff6a37c99eFixes#56881.
Change-Id: Icd2e4d252d5f712685d146f34e11922dd0c41ff0
Reviewed-on: https://go-review.googlesource.com/c/go/+/549795
Reviewed-by: Michael Matloob <matloob@golang.org>
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This commit is aimed at improving the readability and consistency
of the code base. Extraneous newline characters were present after
some return statements, creating unnecessary separation in the code.
Fixes#64610
Change-Id: Ic1b05bf11761c4dff22691c2f1c3755f66d341f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/548316
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Michael Pratt <mpratt@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change lookupMethod such that "foldCase" means "ignore case
and package" and analyze a lookup result further to determine
if a method name was not exported, and report a better error
message in that case.
Fixes#59831.
Change-Id: Ice6222e1fc00dba13caeda6c48971e8473d12da5
Reviewed-on: https://go-review.googlesource.com/c/go/+/549298
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This is a partial fix for situations where a method lookup leads to
an error due to non-matching signatures, but where the signatures
print exactly the same. This can happen if both signatures contain
type parameters (after instantiation) and the type parameters have
the same name (such as "T").
For now, rather than printing a confusing error message in this
case, leave away the confusing part of the error message (at the
cost of providing slightly less information).
In the long run, we need to find a better solution for this problem;
but this seems better than what we had before.
For #61685.
Change-Id: I259183f08b9db400ffc8e1cf447967c640a0f444
Reviewed-on: https://go-review.googlesource.com/c/go/+/549296
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Make sure the platform we are running the tests on can compile programs
and has cgo support in order to run the fuzzer and msan tests. This is the
same approach used by the asan tests, which share the same requirements.
Fixes#64626
Change-Id: I7c0b912dabdd1b7d7d44437e4ade5e5994994796
GitHub-Last-Rev: 9fae6970f0
GitHub-Pull-Request: golang/go#64640
Reviewed-on: https://go-review.googlesource.com/c/go/+/548715
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Reviewed-by: Bryan Mills <bcmills@google.com>
Add a new flag 'reverse' to control the formatting of type inference
error messages.
This change only impacts error messages.
Fixes#60747.
Change-Id: I81e13075e3157252ccc09f358bd29bd676c34499
Reviewed-on: https://go-review.googlesource.com/c/go/+/549055
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Introduce a new type "target" to pass around target types together
with a suitable description (typically a variable name) for a better
error message.
As a side effect, using a specific type (target), rather than just Type
avoids accidental confusion with other types.
Use the target type description for a better error message in some
cases.
The error message can be further improved by flipping the order of
the sentence (for another CL to keep this one small and simple).
Also, and unrelated to this fix, remove the first argument to errorf
in infer.go: the argument is always "type" (there's only one call).
For #60747.
Change-Id: I2118d0fe9e2b4aac959371941064e0e9ca7b3b6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/548995
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If we encounter an unclassified error in modload.Query, it takes
precedence even if the package is found in some other module.
(That is intentional, so that if a package exists in both a parent
and a nested module the outcome is deterministic, and does not shift
if a temporary error causes one of the modules to be unavailable.)
A pseudo-version is formed from a base version and a commit hash.
Each version tag is specific to the module in a particular directory
of the repo (often the root directory), whereas the commit hash is
the same for all subdirectories. When we go to check a particular
subdirectory for the requested package, we may find that that version
is not valid for that combination of <subdirectory, commit hash>,
but we should keep looking to see whether it is valid for a module
in some other subdirectory.
Fixes#47650.
Change-Id: Id48f590ce906a3d4cf4e82fc66137bf67613277d
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In CL 547998 I relaxed cmd/go's parsing of version lines to allow it
to recognize clang versions with vendor prefixes. To prevent false-positives,
I added a check for a version 3-tuple following the word "version".
However, it appears that some releases of GCC use only a 2-tuple instead.
Updates #64423.
Fixes#64619.
Change-Id: I5f1d0881b6295544a46ab958c6ad4c2155cf51fe
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ZR register can be used in register pair of LDP, LDPW and LDPSW
instructions, but now it's not allowed. This CL fixes this issue.
Change-Id: I8467502de4664214e0b7dad0295c44f6cff16ee6
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We can't delete all the outgoing edges and then add one back in, because
then we've lost the argument of any phi at the target. Instead, move
the important target to the front of the list and delete the rest.
This normally isn't a problem, because there is never normally a phi
at the target of a jump table. But this isn't quite true when in race
build mode, because there is a phi of the result of a bunch of raceread
calls.
The reason this happens is that each case is written like this (where e
is the runtime.eface we're switching on):
if e.type == $type.int32 {
m = raceread(e.data, m1)
}
m2 = phi(m1, m)
if e.type == $type.int32 {
.. do case ..
goto blah
}
so that if e.type is not $type.int32, it falls through to the default
case. This default case will have a memory phi for all the (jumped around
and not actually called) raceread calls.
If we instead did it like
if e.type == $type.int32 {
raceread(e.data)
.. do case ..
goto blah
}
That would paper over this bug, as it is the only way to construct
a jump table whose target is a block with a phi in it. (Yet.)
But we'll fix the underlying bug in this CL. Maybe we can do the
rewrite mentioned above later. (It is an optimization for -race mode,
which isn't particularly important.)
Fixes#64606
Change-Id: I6f6e3c90eb1e2638112920ee2e5b6581cef04ea4
Reviewed-on: https://go-review.googlesource.com/c/go/+/548356
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
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This is a partial revert of CL 483137.
CL 483137 started checking errors in postDecode, which is good. Now we
can catch more malformed pprof protos. However this made
TestEmptyProfile fail, so an early return was added when the profile was
"empty" (no samples).
Unfortunately, this was problematic. Profiles with no samples can still
be valid, but skipping postDecode meant that the resulting Profile was
missing values from the string table. In particular, net/http/pprof
needs to parse empty profiles in order to pass through the sample and
period types to a final output proto. CL 483137 broke this behavior.
internal/profile.Parse is only used in two places: in cmd/compile to
parse PGO pprof profiles, and in net/http/pprof to parse before/after
pprof profiles for delta profiles. In both cases, the input is never
literally empty (0 bytes). Even a pprof proto with no samples still
contains some header fields, such as sample and period type. Upstream
github.com/google/pprof/profile even has an explicit error on 0 byte
input, so `go tool pprof` will not support such an input.
Thus TestEmptyProfile was misleading; this profile doesn't need to
support empty input at all.
Resolve this by removing TestEmptyProfile and replacing it with an
explicit error on empty input, as upstream
github.com/google/pprof/profile has. For non-empty input, always run
postDecode to ensure the string table is processed.
TestConvertCPUProfileEmpty is reverted back to assert the values from
before CL 483137. Note that in this case "Empty" means no samples, not a
0 byte input.
Continue to allow empty files for PGO in order to minimize the chance of
last minute breakage if some users have empty files.
Fixes#64566.
Change-Id: I83a1f0200ae225ac6da0009d4b2431fe215b283f
Reviewed-on: https://go-review.googlesource.com/c/go/+/547996
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To better diagnose bugs like this one in the future, I think
we should also refuse to use a C compiler if we can't identify
a sensible version for it. I did not do that in this CL because
I want it to be small and low-risk for possible backporting.
Fixes#64423.
Change-Id: I21e44fc55f6fcf76633e4fecf6400c226a742351
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Otherwise, if make.bash produced a relative default CC path but the
user has an absolute path to CC set in their environment, the test
will fail spuriously.
For #64423.
Change-Id: I0f3e1d04851585e1b39266badcda9f17489332d9
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Before this CL, testEndToEnd only turns the relative PC to absolute PC
when pattern "off(PC)" is the suffix of an instruction. But there are
some instructions like:
ADR 10(PC), R10
it's also acceptable for the assembler while the pattern "off(PC)" is
not a suffix, which makes the test fail.
This CL fixes this issue by searching the pattern in the whole string
instead of only in the suffix.
Change-Id: I0cffedeb7b3c63abca7697671088cf993aff71ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/547235
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Also confirm that setting the location actually worked before
proceeding with the rest of the test.
This fixes a test failure with git versions older than 2.32.0.
Updates #53955.
Fixes#64603.
Change-Id: I1a954975a3d8300e8b4dca045d3a15438a0407ec
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LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
The exported API is only available with GOEXPERIMENT=rangefunc.
This will let Go 1.22 users who want to experiment with rangefuncs
access an efficient implementation of iter.Pull and iter.Pull2.
For #61897.
Change-Id: I6ef5fa8f117567efe4029b7b8b0f4d9b85697fb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/543319
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
gitRepo.statLocal reports tag and version information.
If we are statting a hash that corresponds to a tag, we need to add that tag
before calling statLocal so that it can be included in that information.
Fixes#53955.
Updates #56881.
Change-Id: I69a71428e6ed9096d4cb8ed1bb79531415ff06c1
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/547155
Auto-Submit: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Use a test-local directory for GOCACHE in "cover_statements" script
test, as a workaround for issue 64014.
For the portion of this test that verifies that caching works
correctly, the cache should theoretically always behave
reliably/deterministically, however if other tests are concurrently
accessing the cache while this test is running, it can lead to cache
lookup failures, which manifest as a flaky failure. To avoid such
flakes, use a separate isolated GOCACHE for this test.
For #64014.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest
Change-Id: Ia66798215a75b7c41188ed15920c17b73f40152a
Reviewed-on: https://go-review.googlesource.com/c/go/+/545235
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
When I was plumbing min/max support through the compiler, I was
thinking mostly about numeric argument types. As a result, I forgot
that escape analysis would need to be aware that min/max can operate
on string values, which contain pointers.
Fixes#64565.
Change-Id: I36127ce5a2da942401910fa0f9de922726c9f94d
Reviewed-on: https://go-review.googlesource.com/c/go/+/547715
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Update the go doc for linker flags. Remove flags that no longer
exist. Also remove flags that are intended for debugging the
linker from user docs. Add -aslr to the doc.
The -n flag does nothing except print a nearly useless message on
XCOFF linking. Deprecate it.
Fixes#64476.
Change-Id: I518c9c6cc009eae50b7c11308348524ad6a62b69
Reviewed-on: https://go-review.googlesource.com/c/go/+/546615
Reviewed-by: Than McIntosh <thanm@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The code generation on riscv64 will currently result in incorrect
assembly when a 32 bit integer is right shifted by an amount that
exceeds the size of the type. In particular, this occurs when an
int32 or uint32 is cast to a 64 bit type and right shifted by a
value larger than 31.
Fix this by moving the SRAW/SRLW conversion into the right shift
rules and removing the SignExt32to64/ZeroExt32to64. Add additional
rules that rewrite to SRAIW/SRLIW when the shift is less than the
size of the type, or replace/eliminate the shift when it exceeds
the size of the type.
Add SSA tests that would have caught this issue. Also add additional
codegen tests to ensure that the resulting assembly is what we
expect in these overflow cases.
Fixes#64285
Change-Id: Ie97b05668597cfcb91413afefaab18ee1aa145ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/545035
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: M Zhuo <mzh@golangcn.org>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
With range over int, the rune literal in range expression will be left
as untyped rune, but idealType is not handling this case, causing ICE.
Fixing this by setting the concrete type for untyped rune expresison.
Fixes#64471
Change-Id: I07a151c54ea1d9e1b92e4d96cdfb6e73dca13862
Reviewed-on: https://go-review.googlesource.com/c/go/+/546296
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The shift amounts were wrong in this case, leading to miscompilation
of load combining.
Also the store combining was not triggering when it should.
Fixes#64468
Change-Id: Iaeb08972c5fc1d6f628800334789c6af7216e87b
Reviewed-on: https://go-review.googlesource.com/c/go/+/546355
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Previously, its value was unset (NoPos), but the correct
value is a point after the signature (FuncType.End) and
before the body.
Also, fix a bug in Scope.Innermost whereby it would return
the wrong (outer) scope when the query position was in
the FuncType portion of a Func{Decl,Lit}.
The fix is to set the scope's pos/end to those of the
complete Func{Decl,Lit}. This is now documented at
Info.Scopes, along with other missing information.
Also, fix a bug in the go/types (but not types2) scope
test, in which comments were discarded by the parser,
causing the entire test to be a no-op (!).
Also, make failures of TestScopeLookupParent more
informative.
Also, add a release note about the change in behavior.
Fixes#64292Fixes#64295
Change-Id: Ib681f59d1b0b43de977666db08302d7524d3305f
Reviewed-on: https://go-review.googlesource.com/c/go/+/544035
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Robert Griesemer <gri@google.com>
The Go 1.22 code freeze has recently started. This is a time to update
all golang.org/x/... module versions that contribute packages to the
std and cmd modules in the standard library to latest master versions.
Generated with:
go install golang.org/x/build/cmd/updatestd@latest
go install golang.org/x/tools/cmd/bundle@latest
updatestd -goroot=$(pwd) -branch=master
For #36905.
Change-Id: I76525261b9a954ed21a3bd3cb6c4a12e6c031d80
Cq-Include-Trybots: luci.golang.try:gotip-windows-amd64-longtest,gotip-linux-amd64-longtest,gotip-linux-386-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/546055
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Mehdi Mostafavi
Cuong Manh Le
Than McIntosh
Devon H. O'Dell
Keith Randall
Bryan C. Mills
Russ Cox
Robert Griesemer
Tim King
qmuntal
Mauri de Souza Meneguzzo
Jes Cok
Danil Timerbulatov
eric fang
Raghvender
Michael Pratt
Ruinan
Matthew Dempsky
Cherry Mui
Joel Sing
Alan Donovan
Dmitri Shuralyov