This works around an apparent bug in the Git HTTP backend, introduced
in Git 2.21, that causes responses for the version 1 protocol to
provide incomplete tags.
For Git commands older than 2.18, this configuration flag is ignored.
(Note that Git 2.29 and above already use protocol version 2 by
default.)
Fixes#56881.
Change-Id: I9b241cfb604e5f633ca6a5d799df6706246684a7
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/556358
Run-TryBot: Bryan Mills <bcmills@google.com>
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Reviewed-by: Michael Matloob <matloob@golang.org>
Add missing checks for the case where the range expression is
a (possibly untyped) constant integer expression.
Add context parameter to assignVar for better error message
where the expression is part of a range clause.
Also, rename s/expr/Expr/ where it denotes an AST expression,
for clarity.
Fixes#65133.
For #65137.
Change-Id: I72962d76741abe79f613e251f7b060e99261d3ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/556398
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
For #61422
Change-Id: Ide818366b035eada4ba04b70b4741fb1891585d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/556396
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Very occasionally, at least on linux/386, strace itself will crash in
TestUsingVDSO. Detect these crashes and just skip the test.
Fixes#63734.
Change-Id: I050494459d47dd96c0b8dc0b16353cb532fba93e
Reviewed-on: https://go-review.googlesource.com/c/go/+/556357
Auto-Submit: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This test exercises the SIGQUIT crash loop and managed to trigger the
race from #65138 at least once.
For #65138.
Fixes#64752.
Change-Id: I11091510aa7ae4f58b1d748e53df2e3e3dbfb323
Reviewed-on: https://go-review.googlesource.com/c/go/+/556356
Auto-Submit: Michael Pratt <mpratt@google.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
types2.Unalias is not needed if we know we have a core or underlying
type. Also, types of declared functions (signatures) cannot be aliases
(this includes tuples).
Fixes#65125.
Change-Id: I1faa26b66f6c646719e830dd661136fae86f3775
Reviewed-on: https://go-review.googlesource.com/c/go/+/556036
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Add godoc links from io/fs to testing/fstest for discoverability.
Change-Id: I6550b4b703d2214faa732987ec8630ac903705b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/534095
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
This addresses some panics (out of bounds slice accesses and nil pointer
dereferences) when parsing malformed data. These were found via light
fuzzing, not by any rigorous means, and more potential panics probably
exist.
Fixes#64878.
Fixes#64879.
Change-Id: I4085788ba7dc91fec62e4abd88f50777577db42f
Reviewed-on: https://go-review.googlesource.com/c/go/+/552995
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Now, this is embarrassing. For the whole Go 1.20 and Go 1.21 cycles, we
based RSA public key operation (verification and decryption) benchmarks
on the keys in rsa_test.go, which had E = 3. Most keys in use, including
all those generated by GenerateKey, have E = 65537. This significantly
skewed even relative benchmarks, because the new constant-time
algorithms would incur a larger slowdown for larger exponents.
I noticed this only because I got a production profile for an
application that does a lot of RSA verifications, saw ExpShort show up,
made ExpShort faster, and the crypto/rsa profiles didn't move.
We were measuring the wrong thing, and the slowdown was worse than we
thought. My apologies.
(If E had not been parametrized, it would have avoided issues like this
one, too. Grumble. https://words.filippo.io/parameters/#fn9)
goos: darwin
goarch: arm64
pkg: crypto/rsa
│ g35222eeb78 │ new │
│ sec/op │ sec/op vs base │
DecryptPKCS1v15/2048-8 1.414m ± 2% 1.417m ± 1% ~ (p=0.971 n=10)
DecryptPKCS1v15/3072-8 4.107m ± 0% 4.160m ± 1% +1.29% (p=0.000 n=10)
DecryptPKCS1v15/4096-8 9.363m ± 1% 9.305m ± 1% ~ (p=0.143 n=10)
EncryptPKCS1v15/2048-8 162.8µ ± 2% 212.1µ ± 0% +30.34% (p=0.000 n=10)
DecryptOAEP/2048-8 1.460m ± 4% 1.413m ± 1% ~ (p=0.105 n=10)
EncryptOAEP/2048-8 161.7µ ± 0% 213.4µ ± 0% +31.99% (p=0.000 n=10)
SignPKCS1v15/2048-8 1.419m ± 1% 1.476m ± 1% +4.05% (p=0.000 n=10)
VerifyPKCS1v15/2048-8 160.6µ ± 0% 212.6µ ± 3% +32.38% (p=0.000 n=10)
SignPSS/2048-8 1.419m ± 0% 1.477m ± 2% +4.07% (p=0.000 n=10)
VerifyPSS/2048-8 163.9µ ± 8% 212.3µ ± 0% +29.50% (p=0.000 n=10)
geomean 802.5µ 899.1µ +12.04%
Updates #63516
Change-Id: Iab4a0684d8101ae07dac8462908d8058fe5e9f3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/552895
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Than McIntosh <thanm@google.com>
CL 555355 has a bug in it - the GC program flag was also used to decide
when to free the unrolled bitmap. After that CL, we just don't free any
unrolled bitmaps, leading to a memory leak.
Use a separate flag to track types that need to be freed when their
corresponding object is freed.
Change-Id: I841b65492561f5b5e1853875fbd8e8a872205a84
Reviewed-on: https://go-review.googlesource.com/c/go/+/555416
Auto-Submit: Keith Randall <khr@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Accurate position information for embedded types in interfaces is
crucial to identify the corresponding source file, and with that
the Go language version associated with that file. (The position
information is also important for proper error messages.)
Before this CL, the position information for embedded types was
discarded after type set computation, in the assumption that it
was not needed anymore. However, substitutions that update the
interface may lead to repeated type set computations which then
won't have the correct position information.
This CL does preserve the position information for embedded
types until the end of type checking (cleanup phase), and also
copy the position information during a substitution of the
interface.
The respective bug (#64759) doesn't seem to appear in 1.22 (most
likely because it's hidden by some of the changes made with respect
to the file version logic), but the existing code is still wrong.
The backport of this code to 1.21 and 1.20 fixes the issue in those
releases.
For #64759.
Change-Id: I80f4004c9d79cb02eac6739c324c477706615102
Reviewed-on: https://go-review.googlesource.com/c/go/+/555296
Run-TryBot: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
It doesn't have a GC program - the whole point is that it is
the unrolled version of a GC program.
Fortunately, this isn't a bug as (*mspan).typePointersOfUnchecked
ignores the GCProg flag and just uses GCData as a bitmap unconditionally.
Change-Id: I2508af85af4a1806946e54c893120c5cc0cc3da3
Reviewed-on: https://go-review.googlesource.com/c/go/+/555355
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Reviewed-by: Keith Randall <khr@google.com>
Per https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html:
“If, when attempting to write a file, the destination directory is
non-existent an attempt should be made to create it with permission
0700. […] The application should be prepared to handle the case where
the file could not be written […]. In such case it may choose to
present an error message to the user.”
In certain CI environments, these directories have well-defined
locations but do not exist and cannot be created. In that case,
we now choose to log and return from the test without failing it.
To prevent the functions from falling back to being entirely untested,
we still fail the test (and “present an error message to the user”) if
either function returns an empty string without an error, or returns a
path that refers to a non-directory or results in an error other than
ErrNotExist.
In addition, since the tests themselves no longer create subdirectories,
we add examples illustrating the suggested pattern of usage.
Fixes#64990.
Change-Id: Ie72106424f5ebe36eaf9288c22710d74bb14a462
Reviewed-on: https://go-review.googlesource.com/c/go/+/554815
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
Shape-based stenciling in the Go compiler's generic instantiation
phase looks up shape types using the underlying type of a given target
type. This has a beneficial effect in most cases (e.g. we can use the
same shape type for two different named types whose underlying type is
"int"), but causes some problems when the underlying type is a very
large structure. The link string for the underlying type of a large
imported struct can be extremely long, since the link string
essentially enumerates the full package path for every field type;
this can produce a "go.shape.struct { ... " symbol name that is
absurdly long.
This patch switches the compiler to use a hash of the underlying type
link string instead of the string itself, which should continue to
provide commoning but keep symbol name lengths reasonable for shape
types based on large imported structs.
Fixes#65030.
Change-Id: I87d602626c43172beb99c186b8ef72327b8227a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/554975
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Auto-Submit: Than McIntosh <thanm@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
CL 549536 intended to decouple the internal implementation of rwmutex
from the semantic meaning of an rwmutex read/write lock in the static
lock ranking.
Unfortunately, it was not thought through well enough. The internals
were represented with the rwmutexR and rwmutexW lock ranks. The idea was
that the internal lock ranks need not model the higher-level ordering,
since those have separate rankings. That is incorrect; rwmutexW is held
for the duration of a write lock, so it must be ranked before any lock
taken while any write lock is held, which is precisely what we were
trying to avoid.
This is visible in violations like:
0 : execW 11 0x0
1 : rwmutexW 51 0x111d9c8
2 : fin 30 0x111d3a0
fatal error: lock ordering problem
execW < fin is modeled, but rwmutexW < fin is missing.
Fix this by eliminating the rwmutexR/W lock ranks shared across
different types of rwmutex. Instead require users to define an
additional "internal" lock rank to represent the implementation details
of rwmutex.rLock. We can avoid an additional "internal" lock rank for
rwmutex.wLock because the existing writeRank has the same semantics for
semantic and internal locking. i.e., writeRank is held for the duration
of a write lock, which is exactly how rwmutex.wLock is used, so we can
use writeRank directly on wLock.
For #64722.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-staticlockranking
Change-Id: Ia572de188a46ba8fe054ae28537648beaa16b12c
Reviewed-on: https://go-review.googlesource.com/c/go/+/555055
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Compute median as a + (b-a)/2 instead of (a + b)/2.
Add additional test cases.
Fixes#65025.
Change-Id: Ib716a1036c17f8f33f51e33cedab13512eb7e0be
Reviewed-on: https://go-review.googlesource.com/c/go/+/554617
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Also make the reference into a doc link.
Change-Id: Ib112307a65b65c8f963abf60aa92cb1942de940c
Reviewed-on: https://go-review.googlesource.com/c/go/+/554295
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Currently go test -msan runtime always fails on loong64, arm64
and amd64. Changed the variable name to sz to match the
function prototypes.
For #64256
Change-Id: Ida71197307016520deb39293927850d47845140a
GitHub-Last-Rev: 0ee1e3bb09
GitHub-Pull-Request: golang/go#64572
Reviewed-on: https://go-review.googlesource.com/c/go/+/547696
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Auto-Submit: Keith Randall <khr@golang.org>
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
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The previous TODO comments were somewhat ambiguous. This aims to
provide a clearer understanding of the behavior on Windows.
Windows does not offer a way to peek at the current backlog length, this
is explicitly stated in the winapi for `listen`.
When set to `syscall.SOMAXCONN`, the OS dynamically adjusts the
backlog to a maximum reasonable value. It goes as far as the dotnet
runtime itself introducing a new version of `listen` that does not accept a
backlog parameter to help eliminate the confusion when comparing the
behavior with UNIXes.
The docs also mention that `SOMAXCONN_HINT(N)` can be used, and that
it clips the final computed value between (200, 65535), which suggests
windows might use a `uint16` to back this number. Either way it does not
matter since windows will adjust this value anyway, so I removed the
wrapping TODO as well.
See https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-listen
Change-Id: I7b2e7cb547467c4bfc572ef0477a58de8c772521
GitHub-Last-Rev: 34e74abffe
GitHub-Pull-Request: golang/go#63549
Reviewed-on: https://go-review.googlesource.com/c/go/+/535475
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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This will otherwise trigger an "unusedresult" vet check.
Fixes#64978
Change-Id: Ie19aded0f808d394f389452c3ff7f3edc1ed710d
Reviewed-on: https://go-review.googlesource.com/c/go/+/554196
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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
Reviewed-on: https://go-review.googlesource.com/c/go/+/552095
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Also fixup wording across other templates.
Fixes#64890
Change-Id: I6f9ade440b6702ddfafc21ccb7fbc6cabc2b856e
Reviewed-on: https://go-review.googlesource.com/c/go/+/553155
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Previously, the test could fail spuriously if the CGI process's PID
happened to be reused in between checks. That sort of reuse is highly
unlikely on platforms that cycle through the PID space sequentially
(such as Linux), but plausible on platforms that use randomized PIDs
(such as OpenBSD).
Also unskip the test on Windows, since it no longer relies on being
able to send signal 0 to an arbitrary PID.
Also change the expected failure mode of the test to a timeout instead
of a call to t.Fatalf, so that on failure we get a useful goroutine
dump for debugging instead of a non-actionable failure message.
Fixes#57369 (maybe).
Change-Id: Ib7e3fff556450b48cb5e6ea120fdf4d53547479b
Reviewed-on: https://go-review.googlesource.com/c/go/+/554075
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Reviewed-by: Damien Neil <dneil@google.com>
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
Reviewed-by: Bryan Mills <bcmills@google.com>
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due to a recent change, this experiment does not compile at all. This
simply fixes to pass in the new required parameter.
Change-Id: Idce0e72fa436a7acf4923717913deb3a37847fe2
Reviewed-on: https://go-review.googlesource.com/c/go/+/551415
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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This change fixes Request.Clone to correctly work with SetPathValue
by creating fresh copies for matches and otherValues so that
SetPathValue for cloned requests doesn't pollute the original request.
While here, also added a doc for Request.SetPathValue.
Fixes#64911
Change-Id: I2831b38e135935dfaea2b939bb9db554c75b65ef
GitHub-Last-Rev: 1981db1647
GitHub-Pull-Request: golang/go#64913
Reviewed-on: https://go-review.googlesource.com/c/go/+/553375
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
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Also, join three paragraphs that should have been one.
Change-Id: Ib1c252f88a1e98afe157d477caa5323c0c8365e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/553715
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Reviewed-by: Eli Bendersky <eliben@google.com>
The backing store for the scavengeIndex chunks slice is allocated on demand
as page allocation occurs. When pageAlloc.grow is called, a range is
allocated from a reserved region, before scavengeIndex.grow is called
to ensure that the chunks needed to manage this new range have a valid
backing store. The valid region for chunks is recorded as the index min
and index max. Any changes need to take the existing valid range into
consideration and ensure that a contiguous valid range is maintained.
However, a bug in the min index handling can currently lead to an existing
part of the chunk slice backing store being zeroed via remapping. Initially,
there is no backing store allocated and both min and max are zero. As soon
as an allocation occurs max will be non-zero, however it is still valid for
min to be zero depending on the base addresses of the page allocations. A
sequence like the following will trigger the bug:
1. A page allocation occurs requiring chunks [0, 512) (after rounding) - a
sysMap occurs for the backing store, min is set to 0 and max is set
to 512.
2. A page allocation occurs requiring chunks [512, 1024) - another sysMap
occurs for this part of the backing store, max is set to 1024, however
min is incorrectly set to 512, since haveMin == 0 (validly).
3. Another page allocation occurs requiring chunks [0, 512) - since min is
currently 512 a sysMap occurs for the already mapped and inuse part
of the backing store from [0, 512), zeroing the chunk data.
Correct this by only updating min when either haveMax == 0 (the
uninitialised case) or when needMin < haveMin (the case where the new
backing store range is actually below the current allocation). Remove
the unnecessary haveMax == 0 check for updating max, as the existing
needMax > haveMax case already covers this.
Fixes#63385
Change-Id: I9deed74c4ffa187c98286fe7110e5d735e81f35f
Reviewed-on: https://go-review.googlesource.com/c/go/+/553135
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Run-TryBot: Joel Sing <joel@sing.id.au>
There is no 'of' relationships between float and string. This points to those interfaces with internal type float or string.
Change-Id: I14449f00c192e0d3f8270b433ff508978b7fdf17
GitHub-Last-Rev: f301a8aa52
GitHub-Pull-Request: golang/go#64885
Reviewed-on: https://go-review.googlesource.com/c/go/+/552957
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
Run-TryBot: qiulaidongfeng <2645477756@qq.com>
Run-TryBot: Jorropo <jorropo.pgm@gmail.com>
Follow-up on CL 551095.
For #56010.
Change-Id: I8913d6ca96c419c81683e88c6286b05ae1323416
Reviewed-on: https://go-review.googlesource.com/c/go/+/552915
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
For #56010.
Change-Id: Icca987a03d80587dd0e901f596ff7788584893ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/551095
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Add a new section to the Appendix describing what features were
changed or added in which language version.
Add short links with references to the required language version
where relevant.
Fixes#63857.
Change-Id: I5250f856d8688a71602076fcc662aa678d96a5d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/549518
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Commit generated by update.bash.
For #22487.
Change-Id: I4c8a275bb607981c21a0ad5e49b3cae968fc8e64
Reviewed-on: https://go-review.googlesource.com/c/go/+/552575
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
