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153 Commits

Author SHA1 Message Date
weebney
def0be5e34 all: upgrade Unicode from 13.0.0 to 15.0.0
Update unicode/tables.go to reflect changes in the Unicode Standard up to
Unicode 15.0.0, released 13 Sept 2022.

In order to accommodate this update, strconv/isPrint has been updated to
reflect changes in printable characters.

Also changed is template/exec_test.go for both text and html packages- in
the test "TestJSEscaping", rune U+FDFF was used as a placeholder for an
unprintable character. This codepoint was assigned and made printable in
Unicode 14.0.0, breaking this test. It has been replaced with the assigned
and never-printable U+FFFE to fix the test and provide resiliency in the
future.

This upgrade bypasses Unicode 14.0.0, but is compatible.

Updates https://github.com/golang/go/issues/48621
Fixes https://github.com/golang/go/issues/55079

Change-Id: I40efd097eb746db0727ebf7437280916d1242e47
GitHub-Last-Rev: c8885cab7a
GitHub-Pull-Request: golang/go#57265
Reviewed-on: https://go-review.googlesource.com/c/go/+/456837
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Rob Pike <r@golang.org>
2023-02-06 04:29:53 +00:00
Ian Lance Taylor
a96487613e maps: new package
This copies x/exp/maps into the standard library (except for the Clear
function which is now available as the clear builtin.)

Fixes #57436

Change-Id: I30dd470c2f7ae34c7c82b4c1025a7582d61fabaa
Reviewed-on: https://go-review.googlesource.com/c/go/+/464343
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Eli Bendersky <eliben@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-02-03 18:22:53 +00:00
Florin Papa
9222a01e65 debug/elf: add DT_FLAGS_1 constants
Add constants for all ELF dynamic flags (pertaining to DT_FLAGS_1). This will help, for example, determining whether an object is a position-independent executable (PIE). The constants are defined according to Table 15-10 in https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/linkers-libraries/dynamic-section.html.

Fixes #56887

Change-Id: I6cd501af50d9dbcc2aa8a9a002e12c6fb6726761
Reviewed-on: https://go-review.googlesource.com/c/go/+/452496
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-02-03 04:37:17 +00:00
Alan Donovan
fcd0e0963f math/big: add Int.Float64 conversion
This operation converts a big.Int to float64,
reporting the accuracy of the result, with
a fast path in hardware.

Fixes #56984

Change-Id: I86d0fb0e105a06a4009986f2f5fd87a4d446f6f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/453115
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Alan Donovan <adonovan@google.com>
2023-02-02 19:39:34 +00:00
Alan Donovan
18772915a1 go/token: add (*File).Lines method
This method returns the array updated by SetLines, for
use in exporter packages.

Fixes #57708

Change-Id: I12ed5e7e1bae7517f40cb25e76e51997c25d84f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/464515
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Alan Donovan <adonovan@google.com>
2023-02-02 16:40:29 +00:00
Cuong Manh Le
d42c08a2be reflect,runtime: add Value.Clear
Fixes #55002

Change-Id: I7d0f14cc54f67f2769b51d2efafc4ae3714f0e3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/457895
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-30 16:00:58 +00:00
cuiweixie
4b3726e99b encoding/binary: add var NativeEndian
Updates #57237

Change-Id: I149c8b7eeac91b87b5810250f96d48ca87135807
Reviewed-on: https://go-review.googlesource.com/c/go/+/463218
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: xie cui <523516579@qq.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-01-27 18:17:20 +00:00
hopehook
0b3f58c48e bytes, strings: add ContainsFunc
Fixes #54386.

Change-Id: I78747da337ed6129e4f7426dd0483a644bed82e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/460216
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
2023-01-24 22:06:45 +00:00
Sameer Ajmani
8bec956360 context: add APIs for setting a cancelation cause when deadline or timer expires
Fixes #56661

Change-Id: I1c23ebc52e6b7ae6ee956614e1a0a45d6ecbd5b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/449318
Run-TryBot: Sameer Ajmani <sameer@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-20 21:41:01 +00:00
Russ Cox
aa51c40b1c runtime: replace panic(nil) with panic(new(runtime.PanicNilError))
Long ago we decided that panic(nil) was too unlikely to bother
making a special case for purposes of recover. Unfortunately,
it has turned out not to be a special case. There are many examples
of code in the Go ecosystem where an author has written panic(nil)
because they want to panic and don't care about the panic value.

Using panic(nil) in this case has the unfortunate behavior of
making recover behave as though the goroutine isn't panicking.
As a result, code like:

	func f() {
		defer func() {
			if err := recover(); err != nil {
				log.Fatalf("panicked! %v", err)
			}
		}()
		call1()
		call2()
	}

looks like it guarantees that call2 has been run any time f returns,
but that turns out not to be strictly true. If call1 does panic(nil),
then f returns "successfully", having recovered the panic, but
without calling call2.

Instead you have to write something like:

	func f() {
		done := false
		defer func() {
			if err := recover(); !done {
				log.Fatalf("panicked! %v", err)
			}
		}()
		call1()
		call2()
		done = true
	}

which defeats nearly the whole point of recover. No one does this,
with the result that almost all uses of recover are subtly broken.

One specific broken use along these lines is in net/http, which
recovers from panics in handlers and sends back an HTTP error.
Users discovered in the early days of Go that panic(nil) was a
convenient way to jump out of a handler up to the serving loop
without sending back an HTTP error. This was a bug, not a feature.
Go 1.8 added panic(http.ErrAbortHandler) as a better way to access the feature.
Any lingering code that uses panic(nil) to abort an HTTP handler
without a failure message should be changed to use http.ErrAbortHandler.

Programs that need the old, unintended behavior from net/http
or other packages can set GODEBUG=panicnil=1 to stop the run-time error.

Uses of recover that want to detect panic(nil) in new programs
can check for recover returning a value of type *runtime.PanicNilError.

Because the new GODEBUG is used inside the runtime, we can't
import internal/godebug, so there is some new machinery to
cross-connect those in this CL, to allow a mutable GODEBUG setting.
That won't be necessary if we add any other mutable GODEBUG settings
in the future. The CL also corrects the handling of defaulted GODEBUG
values in the runtime, for #56986.

Fixes #25448.

Change-Id: I2b39c7e83e4f7aa308777dabf2edae54773e03f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/461956
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
2023-01-19 22:21:50 +00:00
Michael Pratt
e57e673e7f api: promote next to go1.20
Change-Id: I180f262837b164095f9ac9459d900ec1ac0585a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/455697
Reviewed-by: Jenny Rakoczy <jenny@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-12-07 16:56:12 +00:00
Russ Cox
6ec6492f55 cmd/api: track darwin arm64 port
The darwin arm64 port was added in Go 1.16 and is a first-class port,
so it should be tracked by cmd/api. This CL does that, backfilling
API files as needed.

It also removes a spurious cgo.Incomplete API feature.

Change-Id: Idd995677915e81bf1c2e09be65b31e084b75f668
Reviewed-on: https://go-review.googlesource.com/c/go/+/453260
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-12-02 16:30:41 +00:00
Russ Cox
1711f953e4 cmd/api: track deprecations
Deprecating an API creates notices that go out to potentially
millions of Go developers encouraging them to update their code.
The choice to deprecate an API is as important as the choice to
add a new API. We should track those and make them explicit.
This will also ensure that deprecations go through proposal review.

Change-Id: Ide9f60c32e5a88fb133e0dfedd984b8b0f70f510
Reviewed-on: https://go-review.googlesource.com/c/go/+/453259
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2022-12-02 16:29:41 +00:00
Robert Griesemer
8fd2875c3e go/types, types2: make the new comparable semantics the default
Ordinary interface types now satisfy comparable constraints. This
is a fully backward-compatible change: it simply permits additional
code to be valid that wasn't valid before.

This change makes the new comparable semantics the default behavior,
depending on the Go -lang version.

It also renames the flag types2.Config.AltComparableSemantics to
types2.Config.OldComparableSemantics and inverts its meaning
(or types.Config.oldComparableSemantics respectively).

Add new predicate Satisfies (matching the predicate Implements but
for constraint satisfaction), per the proposal description.

Adjust some existing tests by setting -oldComparableSemantics
and add some new tests that verify version-dependent behavior.

The compiler flag -oldcomparable may be used to temporarily
switch back to the Go 1.18/1.19 behavior should this change
cause problems, or to identify that a problem is unrelated
to this change. The flag will be removed for Go 1.21.

For #52509.
For #56548.
For #57011.

Change-Id: I8b3b3d9d492fc24b0693567055f0053ccb5aeb42
Reviewed-on: https://go-review.googlesource.com/c/go/+/454575
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-12-01 19:48:07 +00:00
Filippo Valsorda
831c6509cc crypto/ed25519: implement Ed25519ctx and Ed25519ph with context
This is missing a test for Ed25519ph with context, since the RFC doesn't
provide one.

Fixes #31804

Change-Id: I20947374c51c6b22fb2835317d00edf816c9a2d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/404274
Auto-Submit: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2022-11-21 15:23:39 +00:00
Filippo Valsorda
5f60f844be crypto/ecdsa,crypto/x509: add encoding paths for NIST crypto/ecdh keys
Fixes #56088
Updates #52221

Change-Id: Id2f806a116100a160be7daafc3e4c0be2acdd6a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/450816
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2022-11-19 16:45:10 +00:00
Roland Shoemaker
04d6aa6514 crypto/x509: implement SetFallbackRoots
Adds a method which allows users to set a fallback certificate pool for
usage during verification if the system certificate pool is empty.

Updates #43958

Change-Id: I279dd2f753743bce19790f2ae29f063c89c9359d
Reviewed-on: https://go-review.googlesource.com/c/go/+/449235
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2022-11-18 23:57:10 +00:00
Gabor Tanz
f64c2a2ce5 crypto/tls: add CertificateVerificationError to tls handshake
Fixes #48152

Change-Id: I503f088edeb5574fd5eb5905bff7c3c23b2bc8fc
GitHub-Last-Rev: 2b0e982f3f
GitHub-Pull-Request: golang/go#56686
Reviewed-on: https://go-review.googlesource.com/c/go/+/449336
Run-TryBot: Roland Shoemaker <roland@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Julie Qiu <julieqiu@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2022-11-18 18:50:57 +00:00
Damien Neil
a2d8157a7e archive/tar, archive/zip: return ErrInsecurePath for unsafe paths
Return a distinguishable error when reading an archive file
with a path that is:

	- absolute
	- escapes the current directory (../a)
	- on Windows, a reserved name such as NUL

Users may ignore this error and proceed if they do not need name
sanitization or intend to perform it themselves.

Fixes #25849
Fixes #55356

Change-Id: Ieefa163f00384bc285ab329ea21a6561d39d8096
Reviewed-on: https://go-review.googlesource.com/c/go/+/449937
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2022-11-16 23:36:48 +00:00
Damien Neil
6d0bf438e3 path/filepath: add IsLocal
IsLocal reports whether a path lexically refers to a location
contained within the directory in which it is evaluated.
It identifies paths that are absolute, escape a directory
with ".." elements, and (on Windows) paths that reference
reserved device names.

For #56219.

Change-Id: I35edfa3ce77b40b8e66f1fc8e0ff73cfd06f2313
Reviewed-on: https://go-review.googlesource.com/c/go/+/449239
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Joedian Reid <joedian@golang.org>
2022-11-16 23:17:58 +00:00
Filippo Valsorda
dafc915204 crypto/ecdh: move ECDH method to PrivateKey
Fixes #56052

Change-Id: Icacba0ed0f77519bca2140c8af68407af97f9734
Reviewed-on: https://go-review.googlesource.com/c/go/+/450335
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joedian Reid <joedian@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
2022-11-16 14:37:29 +00:00
Changkun Ou
395323c4d0 sync: add new Map method Swap, CompareAndSwap, CompareAndDelete
name                                                   time/op
SwapCollision/*sync_test.DeepCopyMap-8                  235ns ± 0%
SwapCollision/*sync_test.RWMutexMap-8                   145ns ± 0%
SwapCollision/*sync.Map-8                               153ns ± 0%
SwapMostlyHits/*sync_test.DeepCopyMap-8                48.2µs ± 0%
SwapMostlyHits/*sync_test.RWMutexMap-8                  190ns ± 0%
SwapMostlyHits/*sync.Map-8                             28.3ns ± 0%
SwapMostlyMisses/*sync_test.DeepCopyMap-8               681ns ± 0%
SwapMostlyMisses/*sync_test.RWMutexMap-8                336ns ± 0%
SwapMostlyMisses/*sync.Map-8                            523ns ± 0%
CompareAndSwapCollision/*sync_test.DeepCopyMap-8       3.99ns ± 0%
CompareAndSwapCollision/*sync_test.RWMutexMap-8         151ns ± 0%
CompareAndSwapCollision/*sync.Map-8                    21.6ns ± 0%
CompareAndSwapNoExistingKey/*sync_test.DeepCopyMap-8   3.95ns ± 0%
CompareAndSwapNoExistingKey/*sync_test.RWMutexMap-8     126ns ± 0%
CompareAndSwapNoExistingKey/*sync.Map-8                6.11ns ± 0%
CompareAndSwapValueNotEqual/*sync_test.DeepCopyMap-8   2.15ns ± 0%
CompareAndSwapValueNotEqual/*sync_test.RWMutexMap-8     132ns ± 0%
CompareAndSwapValueNotEqual/*sync.Map-8                5.32ns ± 0%
CompareAndSwapMostlyHits/*sync_test.RWMutexMap-8        219ns ± 0%
CompareAndSwapMostlyHits/*sync.Map-8                   27.1ns ± 0%
CompareAndSwapMostlyMisses/*sync_test.DeepCopyMap-8    13.0ns ± 0%
CompareAndSwapMostlyMisses/*sync_test.RWMutexMap-8      147ns ± 0%
CompareAndSwapMostlyMisses/*sync.Map-8                 19.6ns ± 0%
CompareAndDeleteCollision/*sync_test.DeepCopyMap-8     2.23ns ± 0%
CompareAndDeleteCollision/*sync_test.RWMutexMap-8       131ns ± 0%
CompareAndDeleteCollision/*sync.Map-8                  16.2ns ± 0%
CompareAndDeleteMostlyHits/*sync_test.RWMutexMap-8      367ns ± 0%
CompareAndDeleteMostlyHits/*sync.Map-8                 33.1ns ± 0%
CompareAndDeleteMostlyMisses/*sync_test.DeepCopyMap-8  8.75ns ± 0%
CompareAndDeleteMostlyMisses/*sync_test.RWMutexMap-8    134ns ± 0%
CompareAndDeleteMostlyMisses/*sync.Map-8               10.9ns ± 0%

name                                                   alloc/op
SwapCollision/*sync_test.DeepCopyMap-8                   336B ± 0%
SwapCollision/*sync_test.RWMutexMap-8                   0.00B
SwapCollision/*sync.Map-8                               16.0B ± 0%
SwapMostlyHits/*sync_test.DeepCopyMap-8                82.1kB ± 0%
SwapMostlyHits/*sync_test.RWMutexMap-8                  12.0B ± 0%
SwapMostlyHits/*sync.Map-8                              28.0B ± 0%
SwapMostlyMisses/*sync_test.DeepCopyMap-8                713B ± 0%
SwapMostlyMisses/*sync_test.RWMutexMap-8                23.0B ± 0%
SwapMostlyMisses/*sync.Map-8                             129B ± 0%
CompareAndSwapCollision/*sync_test.DeepCopyMap-8        0.00B
CompareAndSwapCollision/*sync_test.RWMutexMap-8         0.00B
CompareAndSwapCollision/*sync.Map-8                     3.00B ± 0%
CompareAndSwapNoExistingKey/*sync_test.DeepCopyMap-8    8.00B ± 0%
CompareAndSwapNoExistingKey/*sync_test.RWMutexMap-8     8.00B ± 0%
CompareAndSwapNoExistingKey/*sync.Map-8                 8.00B ± 0%
CompareAndSwapValueNotEqual/*sync_test.DeepCopyMap-8    0.00B
CompareAndSwapValueNotEqual/*sync_test.RWMutexMap-8     0.00B
CompareAndSwapValueNotEqual/*sync.Map-8                 0.00B
CompareAndSwapMostlyHits/*sync_test.RWMutexMap-8        18.0B ± 0%
CompareAndSwapMostlyHits/*sync.Map-8                    33.0B ± 0%
CompareAndSwapMostlyMisses/*sync_test.DeepCopyMap-8     24.0B ± 0%
CompareAndSwapMostlyMisses/*sync_test.RWMutexMap-8      23.0B ± 0%
CompareAndSwapMostlyMisses/*sync.Map-8                  23.0B ± 0%
CompareAndDeleteCollision/*sync_test.DeepCopyMap-8      0.00B
CompareAndDeleteCollision/*sync_test.RWMutexMap-8       0.00B
CompareAndDeleteCollision/*sync.Map-8                   0.00B
CompareAndDeleteMostlyHits/*sync_test.RWMutexMap-8      23.0B ± 0%
CompareAndDeleteMostlyHits/*sync.Map-8                  39.0B ± 0%
CompareAndDeleteMostlyMisses/*sync_test.DeepCopyMap-8   16.0B ± 0%
CompareAndDeleteMostlyMisses/*sync_test.RWMutexMap-8    15.0B ± 0%
CompareAndDeleteMostlyMisses/*sync.Map-8                15.0B ± 0%

name                                                   allocs/op
SwapCollision/*sync_test.DeepCopyMap-8                   2.00 ± 0%
SwapCollision/*sync_test.RWMutexMap-8                    0.00
SwapCollision/*sync.Map-8                                1.00 ± 0%
SwapMostlyHits/*sync_test.DeepCopyMap-8                  4.00 ± 0%
SwapMostlyHits/*sync_test.RWMutexMap-8                   1.00 ± 0%
SwapMostlyHits/*sync.Map-8                               2.00 ± 0%
SwapMostlyMisses/*sync_test.DeepCopyMap-8                6.00 ± 0%
SwapMostlyMisses/*sync_test.RWMutexMap-8                 2.00 ± 0%
SwapMostlyMisses/*sync.Map-8                             6.00 ± 0%
CompareAndSwapCollision/*sync_test.DeepCopyMap-8         0.00
CompareAndSwapCollision/*sync_test.RWMutexMap-8          0.00
CompareAndSwapCollision/*sync.Map-8                      0.00
CompareAndSwapNoExistingKey/*sync_test.DeepCopyMap-8     1.00 ± 0%
CompareAndSwapNoExistingKey/*sync_test.RWMutexMap-8      0.00
CompareAndSwapNoExistingKey/*sync.Map-8                  1.00 ± 0%
CompareAndSwapValueNotEqual/*sync_test.DeepCopyMap-8     0.00
CompareAndSwapValueNotEqual/*sync_test.RWMutexMap-8      0.00
CompareAndSwapValueNotEqual/*sync.Map-8                  0.00
CompareAndSwapMostlyHits/*sync_test.RWMutexMap-8         2.00 ± 0%
CompareAndSwapMostlyHits/*sync.Map-8                     3.00 ± 0%
CompareAndSwapMostlyMisses/*sync_test.DeepCopyMap-8      2.00 ± 0%
CompareAndSwapMostlyMisses/*sync_test.RWMutexMap-8       2.00 ± 0%
CompareAndSwapMostlyMisses/*sync.Map-8                   2.00 ± 0%
CompareAndDeleteCollision/*sync_test.DeepCopyMap-8       0.00
CompareAndDeleteCollision/*sync_test.RWMutexMap-8        0.00
CompareAndDeleteCollision/*sync.Map-8                    0.00
CompareAndDeleteMostlyHits/*sync_test.RWMutexMap-8       2.00 ± 0%
CompareAndDeleteMostlyHits/*sync.Map-8                   3.00 ± 0%
CompareAndDeleteMostlyMisses/*sync_test.DeepCopyMap-8    2.00 ± 0%
CompareAndDeleteMostlyMisses/*sync_test.RWMutexMap-8     1.00 ± 0%
CompareAndDeleteMostlyMisses/*sync.Map-8                 1.00 ± 0%

Fixes #51972

Change-Id: I469e71033592997832c3e8ebdad1b8950a70c99c
Reviewed-on: https://go-review.googlesource.com/c/go/+/399094
Run-TryBot: Changkun Ou <mail@changkun.de>
Reviewed-by: Joedian Reid <joedian@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2022-11-15 17:35:42 +00:00
Damien Neil
fd0c0db4a4 net/http: add ResponseController and per-handler timeouts
The ResponseController type provides a discoverable interface
to optional methods implemented by ResponseWriters.

	c := http.NewResponseController(w)
	c.Flush()

vs.

	if f, ok := w.(http.Flusher); ok {
		f.Flush()
	}

Add the ability to control per-request read and write deadlines
via the ResponseController SetReadDeadline and SetWriteDeadline
methods.

For #54136

Change-Id: I3f97de60d4c9ff150cda559ef86c6620eee665d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/436890
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
2022-11-10 18:18:03 +00:00
Aleks Rudzitis
e48fc2665e crypto: allow hash.Hash for OAEP and MGF1 to be specified independently
crypto/rsa assumes RSA OAEP uses the same hash to be used for both the label
and the mask generation function. However, implementations in other languages,
such as Java and Python, allow these parameters to be specified independently.

This change allows the MGF hash to be specified independently for decrypt
operations in order to allow decrypting ciphertexts generated in other
environments.

Fixes: #19974
Change-Id: If453d628f0da354ceb3b52863f30087471670f7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/418874
Auto-Submit: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Run-TryBot: Andrew Bonventre <andybons@golang.org>
2022-11-09 23:51:34 +00:00
Bryan C. Mills
e70f74b0aa api/next/54299: add missing newline
Updates #54299.

Change-Id: I20a9191fa3c78810987ace69527d34091c4a42fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/449215
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-11-09 22:23:18 +00:00
cuiweixie
2f4d5c3b79 net/http: add Transport.OnProxyConnectResponse
Fixes #54299

Change-Id: I3a29527bde7ac71f3824e771982db4257234e9ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/447216
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
2022-11-09 17:41:34 +00:00
Sameer Ajmani
5b42f89e39 context: add APIs for writing and reading cancelation cause
Extend the context package to allow users to specify why a context was
canceled in the form of an error, the "cause". Users write the cause
by calling WithCancelCause to construct a derived context, then
calling cancel(cause) to cancel the context with the provided cause.
Users retrieve the cause by calling context.Cause(ctx), which returns
the cause of the first cancelation for ctx or any of its parents.

The cause is implemented as a field of cancelCtx, since only cancelCtx
can be canceled. Calling cancel copies the cause to all derived (child)
cancelCtxs. Calling Cause(ctx) finds the nearest parent cancelCtx by
looking up the context value keyed by cancelCtxKey.

API changes:
+pkg context, func Cause(Context) error
+pkg context, func WithCancelCause(Context) (Context, CancelCauseFunc)
+pkg context, type CancelCauseFunc func(error)

Fixes #26356
Fixes #51365

Change-Id: I15b62bd454c014db3f4f1498b35204451509e641
Reviewed-on: https://go-review.googlesource.com/c/go/+/375977
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Sameer Ajmani <sameer@golang.org>
Auto-Submit: Sameer Ajmani <sameer@golang.org>
2022-11-08 13:51:16 +00:00
cuiweixie
7ddbadb397 api: add newline to 55301.txt
Change-Id: I9bcaba0ca9c30b204bf126dbfec4cd48d9ebe2ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/447896
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Than McIntosh <thanm@google.com>
Run-TryBot: xie cui <523516579@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-11-04 14:19:00 +00:00
cuiweixie
90b40c0496 net: add ControlContext to Dialer
Fixes #55301

Change-Id: Ie8abcd383eee9af75038bde908ac638f43d33b7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/444955
Reviewed-by: Bryan Mills <bcmills@google.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>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: xie cui <523516579@qq.com>
2022-11-04 02:00:13 +00:00
Russ Cox
ca8b31920a cmd/api: make check pickier about api/*.txt
We don't have a formatter for these files, so check here that
they are in the right form to allow 'cat next/*.txt >go1.X.txt'
at the end of each cycle.

Fix the api files that the check finds.

Change-Id: I0c5e4ab11751c7d0afce32503131d487313f41c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/431335
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-11-02 19:08:10 +00:00
cuiweixie
581a822a9e regexp: add ErrLarge error
For #56041

Change-Id: I6c98458b5c0d3b3636a53ee04fc97221f3fd8bbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/444817
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: xie cui <523516579@qq.com>
2022-11-02 18:15:21 +00:00
Bryan C. Mills
55eaae452c os/exec: add the Cancel and WaitDelay fields
Fixes #50436.

Change-Id: I9dff8caa317a04b7b2b605f810b8f12ef8ca485d
Reviewed-on: https://go-review.googlesource.com/c/go/+/401835
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-10-25 03:34:36 +00:00
Filippo Valsorda
a1901f898b crypto/ed25519: implement Ed25519ph in Sign and VerifyWithOptions
Updates #31804

Change-Id: I5a48dfc57401576902674aff20b557e4a8ce8ab8
Reviewed-on: https://go-review.googlesource.com/c/go/+/373076
Reviewed-by: Filippo Valsorda <valsorda@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2022-10-24 12:11:20 +00:00
Matt Layher
d5efd0dd63 net/netip: add IPv6LinkLocalAllRouters and IPv6Loopback
Fixes #51766
Fixes #51777

Change-Id: I0510175c20c06442d78b2581cfe218e66be1c35b
Reviewed-on: https://go-review.googlesource.com/c/go/+/412475
Auto-Submit: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Auto-Submit: Damien Neil <dneil@google.com>
2022-10-21 20:14:41 +00:00
Joe Tsai
61f0409c31 reflect: add Value.Grow
The Grow method is like the proposed slices.Grow function
in that it ensures that the slice has enough capacity to append
n elements without allocating.

The implementation of Grow is a thin wrapper over runtime.growslice.
This also changes Append and AppendSlice to use growslice under the hood.

Fixes #48000

Change-Id: I992a58584a2ff1448c1c2bc0877fe76073609111
Reviewed-on: https://go-review.googlesource.com/c/go/+/389635
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-10-15 17:02:11 +00:00
Than McIntosh
47a538842b runtime/coverage: revise/shorten function names
Use shorter more Go-like names for the new APIs being added in the
runtime/coverage package for writing coverage data under user control
from server programs. Old names were a bit too clunky/verbose.

Updates #51430.

Change-Id: Ifdd5b882a88613c7c4342b40ed93b58547483c77
Reviewed-on: https://go-review.googlesource.com/c/go/+/438503
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-10-05 14:59:05 +00:00
Paul E. Murphy
27d4cdd1a6 debug/elf: fix typo in R_PPC64_TPREL34 and R_PPC64_DTPREL34
The suffix should be 34 not 28. I misread the name because the
reloc listed before these two in the ABI is named "R_PC64_PCREL28".

Updates #54345

Change-Id: Ie8238f55e441c787d70ead58e0a177c650f8b89e
Reviewed-on: https://go-review.googlesource.com/c/go/+/435415
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-09-29 19:54:44 +00:00
Damien Neil
4a0a2b33df errors, fmt: add support for wrapping multiple errors
An error which implements an "Unwrap() []error" method wraps all the
non-nil errors in the returned []error.

We replace the concept of the "error chain" inspected by errors.Is
and errors.As with the "error tree". Is and As perform a pre-order,
depth-first traversal of an error's tree. As returns the first
matching result, if any.

The new errors.Join function returns an error wrapping a list of errors.

The fmt.Errorf function now supports multiple instances of the %w verb.

For #53435.

Change-Id: Ib7402e70b68e28af8f201d2b66bd8e87ccfb5283
Reviewed-on: https://go-review.googlesource.com/c/go/+/432898
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
2022-09-29 18:40:40 +00:00
Than McIntosh
ecd112c0d1 runtime/coverage: apis to emit counter data under user control
Add hooks/apis to support writing of coverage counter data and
meta-data under user control (from within an executing "-cover"
binary), so as to provide a way to obtain coverage data from programs
that do not terminate. This patch also adds a hook for clearing the
coverage counter data for a running program, something that can be
helpful when the intent is to capture coverage info from a specific
window of program execution.

Updates #51430.

Change-Id: I34ee6cee52e5597fa3698b8b04f1b34a2a2a418f
Reviewed-on: https://go-review.googlesource.com/c/go/+/401236
Reviewed-by: David Chase <drchase@google.com>
2022-09-29 14:14:24 +00:00
Alan Donovan
f1d281fe4d go/ast: record start and end of file in File.File{Start,End}
This change causes the parser to record the positions of the first
and last character in the file in new ast.File fields FileStart
and FileEnd.

The behavior of the existing Pos() and End() methods,
which record the span of declarations, must remain unchanged
for compatibility.

Fixes golang/go#53202

Change-Id: I250b19e69f41e3590292c3fe6dea1943ec98f629
Reviewed-on: https://go-review.googlesource.com/c/go/+/427955
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-09-28 20:37:59 +00:00
Roger Peppe
d8e6ed3262 time: implement Compare method
Fixes #50770.

Change-Id: If0104883bb409ec85827fa5b570f68099ad4fd1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/382734
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: hopehook <hopehook@golangcn.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2022-09-19 17:10:49 +00:00
Yuval Pavel Zholkover
d8220ac32f syscall: remove FreeBSD 11 and below 64bit inode compatibility shims
Update #53280

Change-Id: Iaa7c0cf5dbefaa8e14c2de499f99755911c17672
Reviewed-on: https://go-review.googlesource.com/c/go/+/411596
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Yuval Pavel Zholkover <paulzhol@gmail.com>
Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
2022-09-16 01:17:28 +00:00
Kir Kolyshkin
bca17d16ca syscall: add CgroupFD support for ForkExec on Linux
Implement CLONE_INTO_CGROUP feature, allowing to put a child in a
specified cgroup in a clean and simple way. Note that the feature only
works for cgroup v2, and requires Linux kernel 5.7 or newer.

Using the feature requires a new syscall, clone3. Currently this is the
only reason to use clone3, but the code is structured in a way so that
other cases may be easily added in the future.

Add a test case.

While at it, try to simplify the syscall calling code in
forkAndExecInChild1, which became complicated over time because:

1. It was using either rawVforkSyscall or RawSyscall6 depending on
   whether CLONE_NEWUSER was set.

2. On Linux/s390, the first two arguments to clone(2) system call are
   swapped (which deserved a mention in Linux ABI hall of shame). It
   was worked around in rawVforkSyscall on s390, but had to be
   implemented via a switch/case when using RawSyscall6, making the code
   less clear.

Let's

 - modify rawVforkSyscall to have two arguments (which is also required
   for clone3);

 - remove the arguments workaround from s390 asm, instead implementing
   arguments swap in the caller (which still looks ugly but at least
   it's done once and is clearly documented now);

 - use rawVforkSyscall for all cases (since it is essentially similar to
   RawSyscall6, except for having less parameters, not returning r2, and
   saving/restoring the return address before/after syscall on 386 and
   amd64).

Updates #51246.

Change-Id: Ifcd418ebead9257177338ffbcccd0bdecb94474e
Reviewed-on: https://go-review.googlesource.com/c/go/+/417695
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Kirill Kolyshkin <kolyshkin@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-09-09 15:34:16 +00:00
Paul E. Murphy
2b6ff90851 debug/elf: define additional PPC64 ELFv2 relocations
The PPC64 ELFv2 supplement version 1.5 defines a handful of
new relocation types, similarly some were not added.

Fixes #54345

Change-Id: Id39b29d404298fca4a10ccf1e96b5964dc452c9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/425555
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-09-08 13:31:46 +00:00
cuiweixie
67e6542467 go/ast: add Range token.Pos to RangeStmt
For #50429

Change-Id: Idb027244f901d9f482c894b5b979a054d0f07de5
Reviewed-on: https://go-review.googlesource.com/c/go/+/426091
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
2022-09-05 08:12:37 +00:00
Cuong Manh Le
846c378b8c cmd/cgo: add and use runtime/cgo.Incomplete instead of //go:notinheap
Updates #46731

Change-Id: Ia83f27c177cc2f57e240cb5c6708d4552423f5be
Reviewed-on: https://go-review.googlesource.com/c/go/+/421879
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-28 16:04:49 +00:00
Jianwei Mao
a2d2e6e7cb net: add FlagRunning to exactly reflect the states of an interface.
Correctly set this flag while parsing the syscall result.

The FlagUp flag can not distinguish the following situations:
1. interface is plugged, automatically up, and in running(UP) state
2. interface is not plugged, administratively or manually set to up,
but in DOWN state

So, We can't distinguish the state of a NIC by the FlagUp flag alone.

Fixes #53482

Change-Id: I43796bea1a7f72d1fddfef914efe603c81995e1b
GitHub-Last-Rev: 686b5d888e
GitHub-Pull-Request: golang/go#53484
Reviewed-on: https://go-review.googlesource.com/c/go/+/413454
TryBot-Result: Gopher Robot <gobot@golang.org>
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: Ryan Schuster <shuey19831@gmail.com>
Reviewed-by: Jianwei Mao <maojianwei2020@gmail.com>
Reviewed-by: Damien Neil <dneil@google.com>
2022-08-27 05:42:03 +00:00
Paul E. Murphy
a0948493ac debug/elf: fix reloc number of R_PPC64_SECTOFF_LO_DS
R_PPC64_SECTOFF_LO_DS is defined as reloc 62 on all PPC64 ELF ABIs.

Fixes #53356

Change-Id: I5fabf6be32f3310c5aed47d4d654e05fb7bc9de0
Reviewed-on: https://go-review.googlesource.com/c/go/+/411915
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-27 02:36:28 +00:00
cuiweixie
acabf87127 reflect: add Value.{Comparable,Equal}
For #46746

Change-Id: I879124974cdb55932cd9d07d3b384d49d5059857
Reviewed-on: https://go-review.googlesource.com/c/go/+/423794
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-08-26 20:56:48 +00:00
Joe Tsai
bc1d0d8eb1 reflect: add Value.SetZero
The v.SetZero method is a faster equivalent of v.Set(Zero(v.Type())).

Performance:

	                     Direct         CachedZero     NewZero
	SetZero/Bool         2.20ns ± 0%    8.97ns ± 5%    11.4ns ± 1%
	SetZero/Int          3.08ns ± 1%    9.06ns ± 1%    11.5ns ± 0%
	SetZero/Uint         2.88ns ± 1%    9.04ns ± 1%    11.7ns ± 5%
	SetZero/Float        2.65ns ± 2%    9.05ns ± 1%    11.5ns ± 1%
	SetZero/Complex      2.68ns ± 3%    9.31ns ± 1%    11.7ns ± 1%
	SetZero/Array        6.69ns ± 4%    9.32ns ± 1%    11.8ns ± 1%
	SetZero/Chan         3.31ns ± 1%    6.19ns ± 1%    8.20ns ± 1%
	SetZero/Func         3.32ns ± 1%    6.20ns ± 0%    8.24ns ± 1%
	SetZero/Interface    2.66ns ± 1%    9.31ns ± 1%    11.8ns ± 1%
	SetZero/Map          3.31ns ± 1%    6.21ns ± 2%    8.19ns ± 1%
	SetZero/Pointer      3.30ns ± 1%    6.22ns ± 1%    8.17ns ± 1%
	SetZero/Slice        2.90ns ± 4%    9.13ns ± 1%    11.6ns ± 1%
	SetZero/String       3.11ns ± 1%    9.30ns ± 1%    11.8ns ± 2%
	SetZero/Struct       6.37ns ± 1%    9.18ns ± 4%    11.5ns ± 1%

where:

	* Direct is measuring Value.SetZero
	* CachedZero is measuring Value.Set with a cached Zero value
	* NewZero is measuring Value.Set with a new Zero value

Fixes #52376

Change-Id: I793ca723aa97627824c5f5b356b2da30c8e46d71
Reviewed-on: https://go-review.googlesource.com/c/go/+/411476
Auto-Submit: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-08-26 17:15:08 +00:00
Paschalis Tsilias
95a786da12 path/filepath, io/fs: add SkipAll
Fixes #47209

Change-Id: If75b0dd38f2c30a23517205d80c7a6683a5c921c
Reviewed-on: https://go-review.googlesource.com/c/go/+/363814
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2022-08-25 18:50:37 +00:00
hopehook
396b153ec4 testing: add Elapsed method to testing.B
Elapsed returns the measured elapsed time of the benchmark,
but does not change the running state of the timer.

Fixes #43620.

Change-Id: Idd9f64c4632518eec759d2ffccbf0050d84fcc03
Reviewed-on: https://go-review.googlesource.com/c/go/+/420254
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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2022-08-25 17:58:32 +00:00
Axel Wagner
7f632f76db encoding/xml: add (*Encoder).Close
Flush can not check for unclosed elements, as more data might be encoded
after Flush is called. Close implicitly calls Flush and also checks that
all opened elements are closed as well.

Fixes #53346

Change-Id: I889b9f5ae54e5dfabb9e6948d96c5ed7bc1110f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/424777
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2022-08-23 18:24:30 +00:00
hopehook
dc8e2a6a8e io: add OffsetWriter, NewOffsetWriter
Offsetwriter refers to the design of SectionReader and removes
the section parameter n.

Since the size of the written data is determined by the user,
we cannot know where the end offset of the original data is.
The offset of SeekEnd is not valid in Seek method.

Fixes #45899.

Change-Id: I9d9445aecfa0dd4fc5168f2f65e1e3055c201b45
Reviewed-on: https://go-review.googlesource.com/c/go/+/406776
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-08-19 17:03:55 +00:00
qmuntal
48297f1fb1 unicode/utf16: add AppendRune
AppendRune appends the UTF-16 encoding of a rune to a []uint16.

    BenchmarkEncodeValidASCII-12                24.61ns 16B 1allocs
    BenchmarkEncodeValidJapaneseChars-12        18.79ns 8B  1allocs
    BenchmarkAppendRuneValidASCII-12            6.826ns 0B  0allocs
    BenchmarkAppendRuneValidJapaneseChars-12    3.547ns 0B  0allocs

The ASCII case is written to be inlineable.

Fixes #51896

Change-Id: I593b1029f603297ef6e80e036f2fee2a0938d38d
Reviewed-on: https://go-review.googlesource.com/c/go/+/409054
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Reviewed-by: Joedian Reid <joedian@golang.org>
2022-08-19 16:45:08 +00:00
Kir Kolyshkin
3204e62dd1 syscall: add new CLONE_ flags for Linux
The constants for these were auto-generated from the C includes
into zerrors_linux* files quite some time ago. The generator is
currently broken, but some new flags need to be added nevertheless.

As the flags won't change and the values are the same for all
architectures, we can just define them statically (as it's already
done in the runtime package):

 - remove the CLONE_* constants from zerrors_linux_*.go;
 - patch mkerrors.sh to not generate CLONE_ constants
   (in case it will be fixed and used in the future);
 - add the constants and some comments about them to exec_linux.go,
   using Linux v5.17 include/uapi/sched.h as the ultimate source.

This adds the following new flags:

 - CLONE_CLEAR_SIGHAND
 - CLONE_INTO_CGROUP
 - CLONE_NEWCGROUP
 - CLONE_NEWTIME
 - CLONE_PIDFD

For #51246.

Change-Id: I0c635723926218bd403d37e113ee4d62194463a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/407574
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2022-08-19 16:12:50 +00:00
Russ Cox
57d05512fe crypto/subtle: add XORBytes
Export cipher.xorBytes as subtle.XORBytes, for proposal #53021,
to provide fast XOR to cryptography libraries outside crypto/cipher.

Along with the move, implement the alignment check TODO
in xor_generic.go, so that systems with neither unaligned
accesses nor custom assembly can still XOR a word at a time
in word-based algorithms like GCM. This removes the need
for the separate cipher.xorWords.

Fixes #53021.

Change-Id: I58f80a922f1cff671b5ebc6168eb046e702b5a4c
Reviewed-on: https://go-review.googlesource.com/c/go/+/421435
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Reviewed-by: Filippo Valsorda <filippo@golang.org>
2022-08-17 18:47:33 +00:00
Damien Neil
a55793835f net/http/httputil: add ReverseProxy.Rewrite
Add a new Rewrite hook to ReverseProxy, superseding the Director hook.

Director does not distinguish between the inbound and outbound request,
which makes it possible for headers added by Director to be inadvertently
removed before forwarding if they are listed in the inbound request's
Connection header. Rewrite accepts a value containing the inbound
and outbound requests, with hop-by-hop headers already removed from
the outbound request, avoiding this problem.

ReverseProxy's appends the client IP to the inbound X-Forwarded-For
header by default. Users must manually delete untrusted X-Forwarded-For
values. When used with a Rewrite hook, ReverseProxy now strips
X-Forwarded-* headers by default.

NewSingleHostReverseProxy creates a proxy that does not rewrite the
Host header of inbound requests. Changing this behavior is
cumbersome, as it requires wrapping the Director function created
by NewSingleHostReverseProxy. The Rewrite hook's ProxyRequest
parameter provides a SetURL method that provides equivalent
functionality to NewSingleHostReverseProxy, rewrites the Host
header by default, and can be more easily extended with additional
customizations.

Fixes #28168.
Fixes #50580.
Fixes #53002.

Change-Id: Ib84e2fdd1d52c610e3887af66f517d4a74e594d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/407214
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2022-08-16 20:01:36 +00:00
Changkun Ou
68005592b3 strings, bytes: add CutPrefix and CutSuffix
Fixes #42537

Change-Id: Ie03c2614ffee30ebe707acad6b9f6c28fb134a45
Reviewed-on: https://go-review.googlesource.com/c/go/+/407176
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
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2022-08-16 19:48:39 +00:00
Alan Donovan
a45bbeae33 go/token: add (*FileSet).RemoveFile(*File) method
The design of FileSet encourages it to be used as a global variable.
Each call to AddFile consumes about 3KB, that is never returned,
even after an application no longer cares about the File.
This change adds a RemoveFile method that a long-running application
can use to release a File that is no longer needed, saving memory.

Fixes golang/go#53200

Change-Id: Ifd34d650fe0d18b1395f922a4cd02a535afbe560
Reviewed-on: https://go-review.googlesource.com/c/go/+/410114
Auto-Submit: Alan Donovan <adonovan@google.com>
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2022-08-16 16:27:35 +00:00
Martin Möhrmann
7b45edb450 bytes: add Clone function
The new Clone function returns a copy of b[:len(b)]
for the input byte slice b.
The result may have additional unused capacity.
Clone(nil) returns nil.

Fixes #45038

Change-Id: I0469a202d77a7b491f1341c08915d07ddd1f0300
Reviewed-on: https://go-review.googlesource.com/c/go/+/359675
Run-TryBot: Martin Möhrmann <martin@golang.org>
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2022-08-15 19:17:20 +00:00
Alexander Yastrebov
05ff045dfe net/http: add Server.DisableOptionsHandler for custom handling of OPTIONS *
Fixes #41773

Change-Id: I432ad5410d5e3bb0aff3a6e0eea6906ab1b214e2
GitHub-Last-Rev: 57d1ee249d
GitHub-Pull-Request: golang/go#49014
Reviewed-on: https://go-review.googlesource.com/c/go/+/356410
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Reviewed-by: Robert Griesemer <gri@google.com>
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2022-08-15 18:57:35 +00:00
Filippo Valsorda
d88d91e32e crypto/ecdh: new package
We use crypto/internal/edwards25519/field to implement X25519 directly,
so that golang.org/x/crypto/curve25519 can be dropped from the src
module dependencies, and eventually replaced with a crypto/ecdh wrapper,
removing the need to keep golang.org/x/crypto/curve25519/internal/field
in sync with crypto/internal/edwards25519/field.

In crypto/internal/nistec, we add BytesX to serialize only the x
coordinate, which we'll need for the horrible ECDSA x-coord-to-scalar
operation, too.

In crypto/tls, we replace the ECDHE implementation with crypto/ecdh,
dropping the X25519 special cases and related scaffolding.

Finally, FINALLY, we deprecate the ~white whale~ big.Int-based APIs of
the crypto/elliptic package.   •_•)   ( •_•)>⌐■-■   (⌐■_■)

Fixes #52182
Fixes #34648
Fixes #52221

Change-Id: Iccdda210319cc892e96bb28a0e7b7123551982c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/398914
Reviewed-by: Fernando Lobato Meeser <felobato@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
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2022-08-12 00:03:39 +00:00
WANG Xuerui
0337fc7e0e debug/elf: add new-style LoongArch reloc types
LoongArch ELF psABI spec update:
https://github.com/loongson/LoongArch-Documentation/pull/57

Corresponding binutils implementation:
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=6d13722a97cee3fd397e116bde3bcedbb1e220be
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=9801120721c3a702ce3bd50433ef920f92a83502

For #54222

Change-Id: I51e72294205847a69c01d741a3126248f7a7e41c
Reviewed-on: https://go-review.googlesource.com/c/go/+/420982
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
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2022-08-11 19:32:40 +00:00
Joe Tsai
0981d9fff1 time: add DateTime, DateOnly, and TimeOnly
Add named constants for the 3rd, 4th, and 13th most popular formats.

Fixes #52746

Change-Id: I7ce92e44dcae18c089124f1d6f5bc2d6359d436c
Reviewed-on: https://go-review.googlesource.com/c/go/+/412495
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2022-08-09 14:33:24 +00:00
Meng Zhuo
4884599a54 debug/pe: add IMAGE_FILE_MACHINE_RISCV{32,64,128}
https://docs.microsoft.com/en-us/windows/win32/debug/pe-format

Fixes #54251

Change-Id: I024130fd9f55b2f1c0439baacdc56cdbc3315215
Reviewed-on: https://go-review.googlesource.com/c/go/+/421357
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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2022-08-09 01:21:43 +00:00
Rob Pike
d75e186e2c fmt: add a function to recover the original format string given a State
Sometimes when implementing a Formatter it's helpful to use the fmt
package without invoking the formatter. This new function, FormatString,
makes that easier in some cases by recreating the original formatting
directive (such as "%3.2f") that caused Formatter.Format to be
called.

The original Formatter interface is probably not what we would
design today, but we're stuck with it. FormatString, although it
takes a State as an argument, compensates by making Formatter a
little more flexible.

The State does not include the verb so (unlike in the issue), we
must provide it explicitly in the call to FormatString. Doing it there
minimizes allocations by returning the complete format string.

Fixes #51668
Updates #51195

Change-Id: Ie31c8256515864b2f460df45fbd231286b8b7a28
Reviewed-on: https://go-review.googlesource.com/c/go/+/400875
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2022-08-06 09:19:31 +00:00
Cherry Mui
840e99ed74 api: promote next to go1.19
Change-Id: I3d80f0691b399fe4ee4a0d161b5cee907ae6b94f
Reviewed-on: https://go-review.googlesource.com/c/go/+/411394
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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2022-06-09 15:15:48 +00:00
Cherry Mui
80f86f706d api/next: minor reformat
Add newline endings to files without them. Delete empty lines. So
it is consistent and easier to put them together.

Change-Id: I84e6b7a1fe59e9f4d7f00f61539f6449f19a5d40
Reviewed-on: https://go-review.googlesource.com/c/go/+/411121
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2022-06-08 23:36:05 +00:00
Russ Cox
f8a53df314 io: revert: add an Err field to LimitedReader
We are having a hard time deciding the exact semantics
of the Err field, and we need to ship the beta.
So revert the Err field change; it can wait for Go 1.20.

For #51115.

This reverts CL 396215.

Change-Id: I7719386567d3da10a614058a11f19dbccf304b4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/410133
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2022-06-04 14:00:38 +00:00
Robert Findley
1170771074 go/types, types2: set an origin object for vars and funcs
Historically, Objects in go/types were canonical, meaning each entity
was represented by exactly one variable and could thus be identified by
its address. With object instantiation this is no longer the case: Var
and Func objects must be copied to hold substituted type information,
and there may be more than one Var or Func variable representing the
same source-level entity.

This CL adds Origin methods to *Var and *Func, so users can efficiently
navigate to the corresponding canonical object on the generic type.

Fixes #51682

Change-Id: Ia49e15bd6515e1db1eb3b09b88ba666659601316
Reviewed-on: https://go-review.googlesource.com/c/go/+/395535
Reviewed-by: Robert Griesemer <gri@google.com>
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Reviewed-by: Alan Donovan <adonovan@google.com>
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2022-05-17 21:28:43 +00:00
Rob Pike
668041ef66 fmt: add Append, Appendln, Appendf
These are straightforward variants of the existing Sprintf etc.,
but append the resulting bytes to a provided buffer rather than
returning a string.

Internally, there is potentially some allocation because the package
uses a pool of buffers to build its output. We make no attempt to
override that, so the result is first printed into the pool and
then copied to the output. Since it is a managed pool, asymptotically
there should be no extra allocation.

Fixes #47579

RELNOTE=yes

Change-Id: Icef797f9b6f0c84d03e7035d95c06cdb819e2649
Reviewed-on: https://go-review.googlesource.com/c/go/+/406177
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2022-05-17 18:55:46 +00:00
hopehook
41b9d8c75e time: add Time.ZoneBounds
The method Location.lookup returns the "start" and "end" times bracketing seconds when that zone is in effect.

This CL does these things:

1. Exported the "start" and "end" times as time.Time form
2. Keep the "Location" of the returned times be the same as underlying time

Fixes #50062.

Change-Id: I88888a100d0fc68f4984a85c75a85a83aa3e5d80
Reviewed-on: https://go-review.googlesource.com/c/go/+/405374
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2022-05-17 03:26:28 +00:00
hopehook
3474cd4eee encoding/csv: add Reader.InputOffset method
Fixes #43401.

Change-Id: I2498e77e41d845130d95012bc8623bfb29c0dda1
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2022-05-14 04:25:13 +00:00
Carl Johnson
fd6ef06296 io: add an Err field to LimitedReader
Fixes #51115

Change-Id: I3c5296e4adc71c1c1b1808a45abd4801ae43465a
GitHub-Last-Rev: 4c197acd51
GitHub-Pull-Request: golang/go#51990
Reviewed-on: https://go-review.googlesource.com/c/go/+/396215
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2022-05-04 20:06:32 +00:00
Russ Cox
ffe48e00ad sync/atomic: add typed atomic values
These implementations will inline to the lower-level primitives,
but they hide the underlying values so that all accesses are
forced to use the atomic APIs. They also allow the use of shorter
names (methods instead of functions) at call sites, making code
more readable.

Pointer[T] also avoids conversions using unsafe.Pointer at call sites.

Discussed on #47141.
See also https://research.swtch.com/gomm for background.

Fixes #50860.

Change-Id: I0b178ee0c7747fa8985f8e48cd7b01063feb7dcc
Reviewed-on: https://go-review.googlesource.com/c/go/+/381317
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
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2022-05-04 18:05:18 +00:00
Michael Anthony Knyszek
f01c20bf2b runtime/debug: export SetMemoryLimit
This change also adds an end-to-end test for SetMemoryLimit as a
testprog.

Fixes #48409.

Change-Id: I102d64acf0f36a43ee17b7029e8dfdd1ee5f057d
Reviewed-on: https://go-review.googlesource.com/c/go/+/397018
Reviewed-by: Michael Pratt <mpratt@google.com>
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2022-05-03 15:14:09 +00:00
Russ Cox
349cc83389 os/exec: return error when PATH lookup would use current directory
CL 381374 was reverted because x/sys/execabs broke.

This CL reapplies CL 381374, but adding a lookPathErr error
field back, for execabs to manipulate with reflect.
That field will just be a bit of scar tissue in this package forever,
to keep old code working with new toolchains.

CL 403256 fixes x/sys/execabs's test to be ready for the change.
Older versions of x/sys/execabs will keep working
(that is, will keep rejecting what they should reject),
but they will return a slightly different error from LookPath
without that CL, and the test fails because of the different
error text.

For #43724.

This reverts commit f2b674756b.

Change-Id: Iee55f8cd9939e1bd31e5cbdada50681cdc505117
Reviewed-on: https://go-review.googlesource.com/c/go/+/403274
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2022-05-02 14:54:05 +00:00
Bryan Mills
f2b674756b Revert "os/exec: return error when PATH lookup would use current directory"
This reverts CL 381374.

Reason for revert: broke tests for x/sys/execabs.

Updates #43724.
Updates #43947.

Change-Id: I9eb3adb5728dead66dbd20f6afe1e7a77e2a26f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/403058
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2022-04-29 23:04:17 +00:00
Russ Cox
3ce203db80 os/exec: return error when PATH lookup would use current directory
Following discussion on #43724, change os/exec to take the
approach of golang.org/x/sys/execabs, refusing to respect
path entries mentioning relative paths by default.

Code that insists on being able to find executables in relative
directories in the path will need to add a couple lines to override the error.

See the updated package docs in exec.go for more details.

Fixes #43724.
Fixes #43947.

Change-Id: I73c1214f322b60b4167a23e956e933d50470fe13
Reviewed-on: https://go-review.googlesource.com/c/go/+/381374
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2022-04-29 20:16:31 +00:00
Carl Johnson
a5d61be040 net/http: add MaxBytesError
Fixes #30715

Change-Id: Ia3712d248b6dc86abef71ccea6e705a571933d53
GitHub-Last-Rev: 6ae68402a5
GitHub-Pull-Request: golang/go#49359
Reviewed-on: https://go-review.googlesource.com/c/go/+/361397
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2022-04-25 23:36:50 +00:00
Ian Lance Taylor
0bf545e51f regexp/syntax: rename ErrInvalidDepth to ErrNestingDepth
The proposal accepted the name ErrNestingDepth.

For #51684

Change-Id: I702365f19e5e1889dbcc3c971eecff68e0b08727
Reviewed-on: https://go-review.googlesource.com/c/go/+/401854
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2022-04-22 22:35:03 +00:00
Ian Lance Taylor
575fd8817a regexp: change ErrInvalidDepth message to match proposal
Also update the file in $GOROOT/api/next to use proposal number.

For #51684

Change-Id: I28bfa6bc1cee98a17b13da196d41cda34d968bb0
Reviewed-on: https://go-review.googlesource.com/c/go/+/401076
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2022-04-22 00:10:17 +00:00
Bryan C. Mills
b34838913d os/exec: set PWD implicitly if Dir is non-empty and Env is nil
Fixes #50599.

Change-Id: I4e5dbb3972cdf21ede049567bfb98f2c992c5849
Reviewed-on: https://go-review.googlesource.com/c/go/+/401340
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2022-04-21 17:37:05 +00:00
Joe Tsai
35a92f92bd encoding/binary: add AppendVarint AppendUvarint
This adds a straight-forward implementation of the functionality.
A more performant version could be added that unrolls the loop
as is done in google.golang.org/protobuf/encoding/protowire,
but usages that demand high performance can use that package instead.

Fixes #51644

Change-Id: I9d3b615a60cdff47e5200e7e5d2276adf4c93783
Reviewed-on: https://go-review.googlesource.com/c/go/+/400176
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2022-04-15 01:19:37 +00:00
Roland Shoemaker
9298f604f4 crypto/x509: add CertPool.Clone
Export the previously private method copy as Clone.

Fixes #35044

Change-Id: I5403d6a3b9f344c980c1c89a6823e1a49dcda26b
Reviewed-on: https://go-review.googlesource.com/c/go/+/400175
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2022-04-13 19:04:59 +00:00
Russ Cox
27b7b1fa19 go/doc: use go/doc/comment
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Use go/doc/comment to implement the existing go/doc comment APIs,
as well as adding new APIs more tailored to the new world.

For #51082.

Change-Id: I05b97ecedbf7cf7b8dede7ace6736ed6d89204a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/384265
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2022-04-11 16:31:52 +00:00
Russ Cox
6eceabf119 go/doc/comment: parse and print headings
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Implement both old-style and new-style headings, like:

	Text here.

	Old Style Heading

	More text here.

	# New Style Heading

	More text here.

For #51082.

Change-Id: I0d735782d0d345794fc2d4e1bdaa0251b8d4bba2
Reviewed-on: https://go-review.googlesource.com/c/go/+/397284
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2022-04-11 16:31:46 +00:00
Russ Cox
910a33a0ee go/doc/comment: parse and print doc links
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Implement parsing and printing of documentation links,
like [math.Sqrt] or [*golang.org/x/text/runes.Set].

For #51082.

Change-Id: I1cc73afbac1c6568773f921ce4b73e52f17acef6
Reviewed-on: https://go-review.googlesource.com/c/go/+/397281
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2022-04-11 16:31:42 +00:00
Russ Cox
6130b88130 go/doc/comment: add Printer and basic comment printing
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Implement printing of plain text doc paragraphs.

For #51082.


Change-Id: Ieff0af64a900f566bfc833c3b5706488f1444798
Reviewed-on: https://go-review.googlesource.com/c/go/+/397279
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2022-04-11 16:31:40 +00:00
Russ Cox
98b17892a0 go/doc/comment: add paragraph parsing and test framework
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Implement parsing of plain text doc paragraphs,
as well as a txtar-based test framework. Subsequent CLs will
implement the rest of the possible markup.

For #51082.

Change-Id: I449aac69b44089f241fde8050ac134e17cb25116
Reviewed-on: https://go-review.googlesource.com/c/go/+/397278
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2022-04-11 16:31:37 +00:00
Russ Cox
494b79f39a go/doc/comment: add data structures
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Implement just the data structures of the new API for
parsing and printing doc comments, as well as a syntax tree
form for inspecting and manipulating them.

The API itself was discussed and accepted as part of the
proposal process in #51082.

For #51082.

Change-Id: Iae7fbc85705964585273b970c5c62e394feb1288
Reviewed-on: https://go-review.googlesource.com/c/go/+/397276
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2022-04-11 16:31:33 +00:00
Eli Bendersky
063f4032f5 sort: add Find function
For golang/go#50340

Change-Id: I3b4d278affc8e7ec706db8c9777f7a8c8ce7441d
Reviewed-on: https://go-review.googlesource.com/c/go/+/396514
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2022-04-07 14:42:13 +00:00
Roland Shoemaker
2de2f6df64 crypto/x509: add new CRL parser, deprecate old one
Adds a new, cryptobyte based, CRL parser, which returns a
x509.RevocaitonList, rather than a pkix.CertificateList. This allows us
to return much more detailed information, as well as leaving open the
option of adding further information since RevocationList is not a
direct ASN.1 representation like pkix.CertificateList. Additionally
a new method is added to RevocationList, CheckSignatureFrom, which is
analogous to the method with the same name on Certificate, which
properly checks that the signature is from an issuing certiifcate.

This change also deprecates a number of older CRL related functions and
types, which have been replaced with the new functionality introduced
in this change:
  * crypto/x509.ParseCRL
  * crypto/x509.ParseDERCRL
  * crypto/x509.CheckCRLSignature
  * crypto/x509/pkix.CertificateList
  * crypto/x509/pkix.TBSCertificateList

Fixes #50674

Change-Id: I27dc219e39bef09a396e666b4fccaa32578fd913
Reviewed-on: https://go-review.googlesource.com/c/go/+/390834
Reviewed-by: Damien Neil <dneil@google.com>
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2022-04-05 23:32:55 +00:00
Russ Cox
9e16cc1541 hash/maphash: add Bytes and String
For very small inputs, h.Reset+h.Write+h.Sum64 is fundamentally
slower than a single operation, by about a factor of two, because
Write must copy the data into h's buffer, just in case there is another
Write before the Sum64.

A single function doing the whole sequence knows there is no extra
write that will happen, so it doesn't need the buffer, so it avoids the copy.

Fixes #42710.

Change-Id: Icc79c68ccb10827f6640071d026df86b4940fcc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/392494
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2022-04-05 18:01:26 +00:00
Dmitri Shuralyov
eec47d06c1 api: add x509.CertPool.Equal to next/46057.txt
CL 388915 added an exported API but was authored (and tested)
before the API check became stricter.

Updates #46057.

Change-Id: Iee6e4969ade77fb0539fa97fcef0047389fb2cf6
Reviewed-on: https://go-review.googlesource.com/c/go/+/398237
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2022-04-05 03:54:36 +00:00
Xiaodong Liu
cd33b4089c debug: define ELF relocation for loong64
Contributors to the loong64 port are:
  Weining Lu <luweining@loongson.cn>
  Lei Wang <wanglei@loongson.cn>
  Lingqin Gong <gonglingqin@loongson.cn>
  Xiaolin Zhao <zhaoxiaolin@loongson.cn>
  Meidan Li <limeidan@loongson.cn>
  Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
  Qiyuan Pu <puqiyuan@loongson.cn>
  Guoqi Chen <chenguoqi@loongson.cn>

This port has been updated to Go 1.15.6:
  https://github.com/loongson/go

For #46229

Change-Id: I0c58305754c20d2a59328adbd82caa527de254ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/396735
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
2022-04-04 21:43:42 +00:00
Russ Cox
1af60b2f49 regexp/syntax: add and use ErrInvalidDepth
The fix for #51112 introduced a depth check but used
ErrInternalError to avoid introduce new API in a CL that
would be backported to earlier releases.

New API accepted in proposal #51684.

This CL adds a distinct error for this case.

For #51112.
Fixes #51684.

Change-Id: I068fc70aafe4218386a06103d9b7c847fb7ffa65
Reviewed-on: https://go-review.googlesource.com/c/go/+/384617
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2022-04-04 10:59:27 +00:00
Than McIntosh
378221bd6e debug/pe: add APIs for reading section def aux info
Add hooks to support reading of section definition symbol aux data
(including COMDAT information) from the aux symbols associated with
section definition symbols. The COFF symbol array made available by
"pe.File" includes entries for aux symbols, but doesn't expose their
structure (since it varies depending on the type of aux symbol). This
patch adds a function for returning a specific class of aux symbol
("type 5") that immediately follows a COFF symbol corresponding to a
section definition.

Updates #35006.
Updates #51868.

Change-Id: I21fcc057150f7a3c64f01a5961aabca0fa43399e
Reviewed-on: https://go-review.googlesource.com/c/go/+/394534
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2022-03-31 14:57:35 +00:00
Emmanuel T Odeke
81f1cc52ab html/template: make FuncMap a type alias of text/template.FuncMap
In preparation to make html/template and text/template use a
single generics package, this change make FuncMap a type alias
of text/template.FuncMap.

Fixes #46121

Change-Id: I5e94cc8fdf4fe029ff223992b5cdfe79f9c098ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/389156
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2022-03-31 00:54:34 +00:00