The following declarations related to syntactic object resolution
are now deprecated:
- Ident.Obj
- Object
- Scope
- File.{Scope,Unresolved}
- Importer
- Package, NewPackage
New programs should use the type checker instead.
Updates golang/go#52463
Updates golang/go#48141
Change-Id: I82b315f49b1341c11ae20dcbf81106084bd2ba86
Reviewed-on: https://go-review.googlesource.com/c/go/+/504915
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An optional interface FileInfoNames has been added.
If the parameter fi of FileInfoHeader implements the interface
the Gname and Uname of the return value Header are
provided by the method of the interface.
Also added testing.
Fixes#50102
Change-Id: I6fd06c7c9aaf29b22b7384542fe57affed33009a
Change-Id: I6fd06c7c9aaf29b22b7384542fe57affed33009a
GitHub-Last-Rev: 5e82257948
GitHub-Pull-Request: golang/go#61662
Reviewed-on: https://go-review.googlesource.com/c/go/+/514235
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To allow for future evolution of the API, make
QUICConn.SendSessionTicket take a QUICSessionTicketOptions
rather than a single bool.
For #60107
Change-Id: I798fd0feec5c7581e3c3574e2de99611c81df47f
Reviewed-on: https://go-review.googlesource.com/c/go/+/514997
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The method AddFS can be used to add the contents of a fs.FS filesystem
to a zip archive.
This method walks the directory tree starting at the root of the filesystem
and adds each file to the archive.
Fixes#54898
Change-Id: I80511cbd91a1d7e09ee52d2d1b09fb5eed25f45f
GitHub-Last-Rev: 1e17f2e6ba
GitHub-Pull-Request: golang/go#61602
Reviewed-on: https://go-review.googlesource.com/c/go/+/513438
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Fixes#60088
Change-Id: I7b43d329def22c2524501ba1d6bfc73becc823d1
GitHub-Last-Rev: becd714c45
GitHub-Pull-Request: golang/go#61598
Reviewed-on: https://go-review.googlesource.com/c/go/+/513478
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Replace reflect.PtrTo with reflect.PointerTo.
Fixes#59599
Change-Id: I49407193e2050543ef983cd637703acc682d9f51
Change-Id: I49407193e2050543ef983cd637703acc682d9f51
GitHub-Last-Rev: 7bc9ccf1dc
GitHub-Pull-Request: golang/go#61440
Reviewed-on: https://go-review.googlesource.com/c/go/+/511035
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Preserve the names in case we want them to return an iterator.
Keep the efficient runtime implementations for now,
as we will probably want them under some name, perhaps KeysSlice
and ValuesSlice.
Fixes#61538
Change-Id: I6b03010bf071fb4531cb2f967dad46425962fcb8
Reviewed-on: https://go-review.googlesource.com/c/go/+/513476
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Clients of go/types, such as analyzers, may need to know which
specific Go version a package is written for. Record that information
in the Package and expose it using the new GoVersion method.
Update parseGoVersion to handle the new Go versions that may
be passed around starting in Go 1.21.0: versions like "go1.21.0"
and "go1.21rc2". This is not strictly necessary today, but it adds some
valuable future-proofing.
While we are here, change NewChecker from panicking on invalid
version to saving an error for returning later from Files.
Go versions are now likely to be coming from a variety of sources,
not just hard-coded in calls to NewChecker, making a panic
inappropriate.
For #61174.
Fixes#61175.
Change-Id: Ibe41fe207c1b6e71064b1fe448ac55776089c541
Reviewed-on: https://go-review.googlesource.com/c/go/+/507975
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Make all functions use a constraint S ~[]E even if they don't return
the slice type. This makes explicitly instantiating the functions more
consistent: you don't have to remember which take ~[]E and which do not.
It also permits inferring the type when passing one of these functions
to some other function that is using a named slice type.
Fixes#60546
Change-Id: Ib3435255d0177fdbf03455ae527d08599b1ce012
Reviewed-on: https://go-review.googlesource.com/c/go/+/502955
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The "To" prefix was a relic of the first draft
that I failed to make consistent with the unprefixed
name used in the proposal. Fortunately iant spotted
it during the API audit.
Updates #56984
Updates #60560
Change-Id: Ifa6eeddf6dd5f0637c0568e383f9a4bef88b10f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/500116
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This reverts CL 467515. Now that we have cmp.Compare,
we don't need math.Compare or math.Compare32 after all.
For #56491Fixes#60519
Change-Id: I8ed33464adfc6d69bd6b328edb26aa2ee3d234d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/499416
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All OpenSSL tests now test operation with EMS. To test a handshake
*without* EMS we need to pass -Options=-ExtendedMasterSecret which is
only available in OpenSSL 3.1, which breaks a number of other tests.
Updates #43922
Change-Id: Ib9ac79a1d03fab6bfba5fe9cd66689cff661cda7
Reviewed-on: https://go-review.googlesource.com/c/go/+/497376
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This can be used by applications to store additional data in a session.
Fixes#57753
For #60105
Change-Id: Ib42387ad64750fa8dbbdf51de5e9c86378bef0ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/496822
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There was a bug in TestResumption: the first ExpiredSessionTicket was
inserting a ticket far in the future, so the second ExpiredSessionTicket
wasn't actually supposed to fail. However, there was a bug in
checkForResumption->sendSessionTicket, too: if a session was not resumed
because it was too old, its createdAt was still persisted in the next
ticket. The two bugs used to cancel each other out.
For #60105Fixes#19199
Change-Id: Ic9b2aab943dcbf0de62b8758a6195319dc286e2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/496821
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This change by itself is useless, because the application has no way to
access or provide SessionStates to crypto/tls, but they will be provided
in following CLs.
For #60105
Change-Id: I8d5de79b1eda0a778420134cf6f346246a1bb296
Reviewed-on: https://go-review.googlesource.com/c/go/+/496818
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Add a QUICConn type for use by QUIC implementations.
A QUICConn provides unencrypted handshake bytes and connection
secrets to the QUIC layer, and receives handshake bytes.
For #44886
Change-Id: I859dda4cc6d466a1df2fb863a69d3a2a069110d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/493655
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Now that the `cmp` package exists, sorting and comparison functions from
`x/exp/slices` can be ported to the standard library, using the
`cmp.Ordered` type and the `cmp.Less` and `cmp.Compare` functions.
This move also includes adjustments to the discussions in #60091 w.r.t.
NaN handling and cmp vs. less functions, and adds Min/Max functions.
The final API is taken from
https://github.com/golang/go/issues/60091#issuecomment-1553850782
Updates #60091
Change-Id: Id7e6c88035b60d4ddd0c48dd82add8e8bc4e22d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/496078
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This relocation is not (yet?) defined in ELFv2, but has been added to
gnu gas a couple years ago. It is the same reloc as
R_PPC64_REL24_NOTOC, but hints power10 instructions should not be
emitted.
See binutils commit 7aba54da426b9999085d8f84e7896b8afdbb9ca6.
Fixes#60348
Change-Id: Ie953cd7bf1ffc621b498d4dbebb5de1231833c8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/496918
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The new cmp package provides types and functions related to
comparing ordered values.
For #59488
Change-Id: I43f4b2e6036f63b87c2152672d2b6fa18235cbeb
Reviewed-on: https://go-review.googlesource.com/c/go/+/496356
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Some C APIs require the use or structures that contain pointers to
buffers (iovec, io_uring, ...). The pointer passing rules would
require that these buffers are allocated in C memory and to process
this data with Go libraries it would need to be copied.
In order to provide a zero-copy way to use these C APIs, this CL
implements a Pinner API that allows to pin Go objects, which
guarantees that the garbage collector does not move these objects
while pinned. This allows to relax the pointer passing rules so that
pinned pointers can be stored in C allocated memory or can be
contained in Go memory that is passed to C functions.
The Pin() method accepts pointers to objects of any type and
unsafe.Pointer. Slices and arrays can be pinned by calling Pin()
with the pointer to the first element. Pinning of maps is not
supported.
If the GC collects unreachable Pinner holding pinned objects it
panics. If Pin() is called with the other non-pointer types it
panics as well.
Performance considerations: This change has no impact on execution
time on existing code, because checks are only done in code paths,
that would panic otherwise. The memory footprint on existing code is
one pointer per memory span.
Fixes: #46787
Signed-off-by: Sven Anderson <sven@anderson.de>
Change-Id: I110031fe789b92277ae45a9455624687bd1c54f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/367296
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For #41198
Change-Id: Ibb030e94618a1f594cfd98ddea214ad7a88d2e73
Reviewed-on: https://go-review.googlesource.com/c/go/+/494122
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The Group function takes a key and a ...any, which is converted
into attrs.
Fixes#59204.
Change-Id: Ib714365dcda2eda37863ce433f3dd8cf5eeda610
Reviewed-on: https://go-review.googlesource.com/c/go/+/487855
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There is now one constructor function for each built-in handler, with
signature
NewXXXHandler(io.Writer, *HandlerOptions) *XXXHandler
Fixes#59339.
Change-Id: Ia02183c5ce0dc15c64e33ad05fd69bca09df2d2d
Reviewed-on: https://go-review.googlesource.com/c/go/+/486415
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For #54451
Change-Id: I3214066f77b1398ac1f2786ea035c83f32f0a826
Reviewed-on: https://go-review.googlesource.com/c/go/+/489555
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See https://go.dev/s/generatedcode for spec.
Fixes#28089
Change-Id: Ic9bb138bdd180f136f9e8e74e187319acca5dbac
Reviewed-on: https://go-review.googlesource.com/c/go/+/487935
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Add a package for testing that a slog.Handler implementation
satisfies that interface's documented requirements.
Code copied from x/exp/slog/slogtest.
Updates #56345.
Change-Id: I89e94d93bfbe58e3c524758f7ac3c3fba2a2ea96
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Add a struct called Source that holds the function, file and line
of a location in the program's source code.
When HandleOptions.AddSource is true, the ReplaceAttr function will
get an Attr whose key is SourceKey and whose value is a *Source.
We use *Source instead of Source to save an allocation. The pointer
and the value each cause one allocation up front: the pointer when it
is created, and the value when it is assigned to the `any` field of a
slog.Value (handle.go:283). If a ReplaceAttr function wanted to modify
a Source value, it would have to create a new slog.Value to return,
causing a second allocation, but the function can modify a *Source in
place.
TextHandler displays a Source as "file:line".
JSONHandler displays a Source as a group of its non-zero fields.
This replaces the previous design, where source location was always a
string with the format "file:line". The new design gives users more
control over how to output and consume source locations.
Fixes#59280.
Change-Id: I84475abd5ed83fc354b50e34325c7b246cf327c7
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Add an AfterFunc function, which registers a function to run after
a context has been canceled.
Add support for contexts that implement an AfterFunc method, which
can be used to avoid the need to start a new goroutine watching
the Done channel when propagating cancellation signals.
Fixes#57928
Change-Id: If0b2cdcc4332961276a1ff57311338e74916259c
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Test cases added to debug/dwarf because that is where it matters in practice.
The new test binary line-gcc-zstd.elf built with
gcc -g -no-pie -Wl,--compress-debug-sections=zstd line[12].c
using
gcc (Debian 12.2.0-10) 12.2.0
with a development version of the GNU binutils.
Fixes#55107
Change-Id: I48507c96902e1f83a174e5647b5cc403d965b52b
Reviewed-on: https://go-review.googlesource.com/c/go/+/473256
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This new TCPConn method returns whether the connection is using MPTCP or
if a fallback to TCP has been done, e.g. because the other peer doesn't
support MPTCP.
When working on the new E2E test linked to MPTCP (#56539), it looks like
the user might need to know such info to be able to do some special
actions (report, stop, etc.). This also improves the test to make sure
MPTCP has been used as expected.
Regarding the implementation, from kernel version 5.16, it is possible
to use:
getsockopt(..., SOL_MPTCP, MPTCP_INFO, ...)
and check if EOPNOTSUPP (IPv4) or ENOPROTOOPT (IPv6) is returned. If it
is, it means a fallback to TCP has been done. See this link for more
details:
https://github.com/multipath-tcp/mptcp_net-next/issues/294
Before v5.16, there is no other simple way, from the userspace, to check
if the created socket did a fallback to TCP. Netlink requests could be
done to try to find more details about a specific socket but that seems
quite a heavy machinery. Instead, only the protocol is checked on older
kernels.
The E2E test has been modified to check that the MPTCP connection didn't
do any fallback to TCP, explicitely validating the two methods
(SO_PROTOCOL and MPTCP_INFO) if it is supported by the host.
This work has been co-developed by Gregory Detal
<gregory.detal@tessares.net> and Benjamin Hesmans
<benjamin.hesmans@tessares.net>.
Fixes#59166
Change-Id: I5a313207146f71c66c349aa8588a2525179dd8b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/471140
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Record.Attrs stops as soon as its argument function returns false.
Fixes#59060.
Change-Id: I578d64635e0e52b0fcdbc57f6d5a27a6efac8c70
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Fixes#46159
Change-Id: I51dc4e9e8915ab5a73f053690fb2395edbeb1151
Reviewed-on: https://go-review.googlesource.com/c/go/+/479401
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For #57001, compilers and others tools will need to understand that
a different Go version can be used in different files in a program,
according to the //go:build lines in those files.
This CL adds a GoVersion string field to ast.File, to allow exposing this
per-file Go version information.
For #59033.
Change-Id: I3931ea86c237983d152964f48dce498bcb1f06aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/476276
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For #57001, programs need to be able to deduce the Go version
implied by a given build constraint. GoVersion determines that,
by discarding all build tags other than Go versions and computing
the minimum Go version implied by the resulting expression.
For #59033.
Change-Id: Ifb1e7af2bdbdf172f82aa490c826c9b6ca5e824b
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Fixes#54768
Change-Id: I588ae33c13e0bbd9d324c11771667b22a864047d
Reviewed-on: https://go-review.googlesource.com/c/go/+/483175
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Expose "http: server gave HTTP response to HTTPS client" error as `ErrSchemeMismatch`, so that it can be compared with `errors.Is` .
Fixes#44855
Change-Id: If96e0d000fdef641fea407310faf9e1c4f7ad0f0
GitHub-Last-Rev: 22879fc883
GitHub-Pull-Request: golang/go#50939
Reviewed-on: https://go-review.googlesource.com/c/go/+/382117
Run-TryBot: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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These are replaced by unsafe.String etc, which were added in Go 1.20.
Per https://go.dev/wiki/Deprecated, we must wait until Go 1.21
to mark them deprecated.
Fixes#56906.
Change-Id: I4198c3f3456e9e2031f6c7232842e187e6448892
Reviewed-on: https://go-review.googlesource.com/c/go/+/452762
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Auto-Submit: Russ Cox <rsc@golang.org>
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Run-TryBot: Russ Cox <rsc@golang.org>
This adds the three functions from #56102 to the sync package. These
provide a convenient API for the most common uses of sync.Once.
The performance of these is comparable to direct use of sync.Once:
$ go test -run ^$ -bench OnceFunc\|OnceVal -count 20 | benchstat -row .name -col /v
goos: linux
goarch: amd64
pkg: sync
cpu: 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz
│ Once │ Global │ Local │
│ sec/op │ sec/op vs base │ sec/op vs base │
OnceFunc 1.3500n ± 6% 2.7030n ± 1% +100.22% (p=0.000 n=20) 0.3935n ± 0% -70.86% (p=0.000 n=20)
OnceValue 1.3155n ± 0% 2.7460n ± 1% +108.74% (p=0.000 n=20) 0.5478n ± 1% -58.35% (p=0.000 n=20)
The "Once" column represents the baseline of how code would typically
express these patterns using sync.Once. "Global" binds the closure
returned by OnceFunc/OnceValue to global, which is how I expect these
to be used most of the time. Currently, this defeats some inlining
opportunities, which roughly doubles the cost over sync.Once; however,
it's still *extremely* fast. Finally, "Local" binds the returned
closure to a local variable. This unlocks several levels of inlining
and represents pretty much the best possible case for these APIs, but
is also unlikely to happen in practice. In principle the compiler
could recognize that the global in the "Global" case is initialized in
place and never mutated and do the same optimizations it does in the
"Local" case, but it currently does not.
Fixes#56102
Change-Id: If7355eccd7c8de7288d89a4282ff15ab1469e420
Reviewed-on: https://go-review.googlesource.com/c/go/+/451356
TryBot-Result: Gopher Robot <gobot@golang.org>
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Reviewed-by: Andrew Gerrand <adg@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Caleb Spare <cespare@gmail.com>
Auto-Submit: Austin Clements <austin@google.com>
Similar to dialMPTCP, this listenMPTCP function is called when the user
has requested MPTCP via SetMultipathTCP in the ListenConfig.
This function falls back to listenTCP on operating systems that do not
support MPTCP or if MPTCP is not supported.
On ListenConfig side, MultipathTCP function can be used to know if the
package will try to use MPTCP or not when Listen is called.
Note that this new listenMPTCP function returns a TCPListener object and
not a new MPTCP dedicated one. The reasons are similar as the ones
explained in the parent commit introducing dialTCP: if MPTCP is used by
default later, Listen will return a different object that could break
existing applications expecting TCPListener.
This work has been co-developped by Gregory Detal
<gregory.detal@tessares.net>.
Updates #56539
Change-Id: I010f1d87f921bbac9e157cef2212c51917852353
Reviewed-on: https://go-review.googlesource.com/c/go/+/471137
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This function is called when the user has requested MPTCP via
SetMultipathTCP in the Dialer.
This new function falls back to dialTCP on operating systems that do not
support MPTCP or if MPTCP is not supported.
On Dialer side, MultipathTCP function can be used to know if the package
will try to use MPTCP or not when Dial is called.
Note that this new dialMPTCP function returns a TCPConn object, like
dialTCP. A new MPTCPConn object using the following composition could
have been returned:
type MPTCPConn struct {
*TCPConn
}
But the drawback is that if MPTCP is used by default one day (see #56539
issue on GitHub), Dial will return a different object: this new
MPTCPConn type instead of the previously expected TCPConn. This can
cause issues for apps checking the returned object.
This work has been co-developped by Gregory Detal
<gregory.detal@tessares.net>.
Updates #56539
Change-Id: I0f9b5b81f630b39142bdd553d4f1b4c775f1dff0
Reviewed-on: https://go-review.googlesource.com/c/go/+/471136
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
