For #61422.
Change-Id: I0e091c30a445dbc55054c31837c6f051fea3c07d
Reviewed-on: https://go-review.googlesource.com/c/go/+/544537
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Removes the RSA KEX based ciphers from the default list. This can be
reverted using the tlsrsakex GODEBUG.
Fixes#63413
Change-Id: Id221be3eb2f6c24b91039d380313f0c87d339f98
Reviewed-on: https://go-review.googlesource.com/c/go/+/541517
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Updates the default from 1.0 -> 1.2 for servers, bringing it in line
with clients. Add a GODEBUG setting, tls10server, which lets users
revert this change.
Fixes#62459
Change-Id: I2b82f85b1c2d527df1f9afefae4ab30a8f0ceb41
Reviewed-on: https://go-review.googlesource.com/c/go/+/541516
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
This CL exports the previously unexported Alias type and
corresponding functions and methods per issue #63223.
Whether Alias types are used or not is controlled by
the gotypesalias setting with the GODEBUG environment
variable. Setting gotypesalias to "1" enables the Alias
types:
GODEBUG=gotypesalias=1
By default, gotypesalias is not set.
Adjust test cases that enable/disable the use of Alias
types to use -gotypesalias=1 or -gotypesalias=0 rather
than -alias and -alias=false for consistency and to
avoid confusion.
For #63223.
Change-Id: I51308cad3320981afac97dd8c6f6a416fdb0be55
Reviewed-on: https://go-review.googlesource.com/c/go/+/541737
Run-TryBot: Robert Griesemer <gri@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Go 1.21 and earlier do not understand this line, causing
"go mod vendor" of //go:build go1.22-tagged code that
uses this feature to fail.
The solution is to include the go/build change to skip over
the line in Go 1.22 (making "go mod vendor" from Go 1.22 onward
work with this change) and then wait to deploy the cgo change
until Go 1.23, at which point Go 1.21 and earlier will be unsupported.
For #56378.
Fixes#63293.
Change-Id: Ifa08b134eac5a6aa15d67dad0851f00e15e1e58b
Reviewed-on: https://go-review.googlesource.com/c/go/+/539235
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
This CL is partly based on CL 510535.
For #61405.
Change-Id: Ic94f6726f9eb34313f11bec7b651921d7e5c18d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/538859
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Change-Id: I941b6397e2f09a4abb30c0caf91cc2ff2212a445
Reviewed-on: https://go-review.googlesource.com/c/go/+/536675
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Auto-Submit: Roland Shoemaker <roland@golang.org>
Fixes#63525.
Change-Id: Ie9aa4dd47c025cd593e576c6e8de1774e1d1e302
Reviewed-on: https://go-review.googlesource.com/c/go/+/535775
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Add the GODEBUG setting httpmuxgo121.
When set to "1", ServeMux behaves exactly like it did in Go 1.21.
Implemented by defining a new, unexported type, serveMux121, that
uses the original code.
Updates #61410.
Change-Id: I0a9d0fe2a2286e442d680393e62895ab50683cea
Reviewed-on: https://go-review.googlesource.com/c/go/+/530461
Run-TryBot: Jonathan Amsterdam <jba@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
Change-Id: I11d0947d6d2ffa91745c8e36a3984ffee85abbd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/528896
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
This CL clarifies the order of evaluation of the binary logical
operators, && and ||. The clarified semantics matches what cmd/compile
and x/tools/go/ssa already implement, and prohibit some optimizations
that are arguably allowed today but risk surprising users.
First, it specifies that the left operand is evaluated before the
right operand. This prohibits "(f() || true) && *p" from evaluating
"*p" before "f()".
Second, it specifies that binary logical operations are also ordered
lexically left-to-right with regard to function calls and receive
operations. This prohibits "h(*p || true || f(), g())" from evaluating
"*p" after "g()".
Finally, the "order of evaluation of [...] is not specified" wording
in the example is clarified to acknowledge that there are still some
other orderings that are implied lexically; e.g., x must be evaluated
and indexed before g(), and z now must be evaluated before h(). (Note:
Whether z is evaluated before or after f() remains unspecified, as
there's no lexical dependency.)
Change-Id: I9d316a7f1fbc83be663e116380a2cc7a4ace623d
Reviewed-on: https://go-review.googlesource.com/c/go/+/522938
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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The upcoming built-in zero value provides an idiomatic way
to test for zero by comparing to the zero literal: v == zero.
The reflect package is meant to provide a programmatic way to perform
operations that the Go language itself provides.
Thus, it seems prudent that reflect.ValueOf(&v).Elem().IsZero() is
identical to v == zero.
This change alters the behavior of Value.IsZero in two concrete ways:
* negative zero is identical to zero
* blank fields in a struct are ignored
Prior to this change, we were already in an inconsistent state
due to a regression introduced by CL 411478.
The new behavior was already the case for comparable composite types.
This change makes it consistent for all other types
(in particular incomparable composite types and standalone numbers).
Updates #61372Fixes#61827
Change-Id: Id23fb97eb3b8921417cc75a1d3ead963e22dc3d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/517777
Reviewed-by: Russ Cox <rsc@golang.org>
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For #56378
Change-Id: I0c9c662c6d765cad6f7bf17fdd648db8d73e429b
Reviewed-on: https://go-review.googlesource.com/c/go/+/522937
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
The example text below suggests that []byte("") always evaluates to
the non-nil value []byte{}, but the text proper doesn't explicitly
require that. This CL makes it clear that it must not evaluate to
[]byte(nil), which otherwise was allowed by the wording.
Change-Id: I6564bfd5e2fd0c820d9b55d17406221ff93ce80c
Reviewed-on: https://go-review.googlesource.com/c/go/+/521035
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Change-Id: I40595a3f598483d029473af465c756f8777ecc91
Reviewed-on: https://go-review.googlesource.com/c/go/+/520915
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Irrespective of whether unification is exact or inexact, method
signatures of interfaces must always match exactly: a type never
satisfies/implements an interface if relevant method signatures
are different (i.e., not identical, possibly after substitution).
This change matches the fix https://go.dev/cl/519435.
For #61879.
Change-Id: I28b0a32d32626d85afd32e107efce141235a923d
Reviewed-on: https://go-review.googlesource.com/c/go/+/519455
TryBot-Bypass: Robert Griesemer <gri@google.com>
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Auto-Submit: Robert Griesemer <gri@google.com>
For #60370.
Change-Id: Idae906ec7027be6d95f78bf43f7ce8f9d07e6c00
GitHub-Last-Rev: c645f0cf82
GitHub-Pull-Request: golang/go#62033
Reviewed-on: https://go-review.googlesource.com/c/go/+/519555
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Auto-Submit: Ian Lance Taylor <iant@google.com>
The link was missing the /pkg/ prefix.
Fixes#62034.
Change-Id: I96c43f06621e30241e140948129e90f0bd5f8d13
GitHub-Last-Rev: c1e7413f76
GitHub-Pull-Request: golang/go#62040
Reviewed-on: https://go-review.googlesource.com/c/go/+/519575
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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The Content-Length must be a valid numeric value, empty values should not be accepted.
See: https://www.rfc-editor.org/rfc/rfc9110.html#name-content-lengthFixes#61679
Change-Id: Icbcd933087fe5e50199b62ff34c58bf92a09d3d4
GitHub-Last-Rev: 932e46b55b
GitHub-Pull-Request: golang/go#61865
Reviewed-on: https://go-review.googlesource.com/c/go/+/517336
Reviewed-by: Damien Neil <dneil@google.com>
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Add a new GODEBUG setting, tlsmaxrsasize, which allows controlling the
maximum RSA key size we will accept during TLS handshakes.
Change-Id: I52f060be132014d219f4cd438f59990011a35c96
Reviewed-on: https://go-review.googlesource.com/c/go/+/517495
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
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Now that the development of the Go 1.21 release is almost done, its
release notes are moved to their eventual long-term home in x/website
in CL 516095. Delete the initial development copy here.
For golang/go#58645.
Change-Id: I5207d21289b2e7b9328c943a088f45bc81c710a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/516075
Run-TryBot: David Chase <drchase@google.com>
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Left out the following commits that felt more bug-fixy.
* f0de4b4f03 - crypto/x509: fix certificate validation with FQDN on Windows <Patryk Chelmecki>
* 20e08fe68c - crypto/tls: advertise correct ciphers in TLS 1.3 only mode <Monis Khan>
* 295c237b4d - crypto/tls: enforce 1.3 record version semantics <Roland Shoemaker>
Change-Id: Idd38b5c6897130424a0e8b857f371d7d384fc143
Reviewed-on: https://go-review.googlesource.com/c/go/+/515955
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Change-Id: I06345199ff16c80be83c345d734caef1714ec089
Reviewed-on: https://go-review.googlesource.com/c/go/+/515338
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Arrays, structs, and complex numbers are collections of values that
are handled separately by the memory model.
An earlier version may have said this, but the current version does not.
Say it.
Change-Id: If3928bed6659e58e688f88aa0dde05423cbb3820
Reviewed-on: https://go-review.googlesource.com/c/go/+/514476
Run-TryBot: Russ Cox <rsc@golang.org>
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Change-Id: I0d4ccbc396c48d565c0cbe93c9558ab330a44d02
Reviewed-on: https://go-review.googlesource.com/c/go/+/513275
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This leaves the specific unification details out in favor
of a (forthcoming) section in an appendix.
Change-Id: If984c48bdf71c278e1a2759f9a18c51ef58df999
Reviewed-on: https://go-review.googlesource.com/c/go/+/507417
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Change-Id: I9cdb301163b67add39928c8fc7df2b7f3893f45e
Reviewed-on: https://go-review.googlesource.com/c/go/+/511836
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The new section describes type inference as the problem
of solving a set of type equations for bound type parameters.
The next CL will update the section on unification to match
the new inference approach.
Change-Id: I2cb49bfb588ccc82d645343034096a82b7d602e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/503920
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Fixes#53301
Change-Id: Id447d57d43b12c3748267295928d45a089549340
Reviewed-on: https://go-review.googlesource.com/c/go/+/507815
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Reviewed-by: Meidan Li <limeidan@loongson.cn>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Per feedback on #56351.
For #56351.
Change-Id: I63dd1713a1efe4d7180d932dbd8e1510cbb32e90
Reviewed-on: https://go-review.googlesource.com/c/go/+/510935
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Relnote (golang.org/x/build/cmd/relnote) was run again. Some of the
simpler entries were resolved. TODO's remain for other entries.
For #58645
Change-Id: I0acb5e87b2e9655ffd472e728259a4aa6c4da50e
Reviewed-on: https://go-review.googlesource.com/c/go/+/510375
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
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When adding MPTCP support to address the proposal #56539, I missed the
GODEBUG setting from Russ Cox's plan:
I am inclined to say that we add MPTCP as an opt-in for a release or
two, and then make it opt-out. There should be a GODEBUG setting (...)
See: https://github.com/golang/go/issues/56539#issuecomment-1309294637
Thanks to andrius4669 for having reported this issue to me.
It makes sense to have this GODEBUG setting not to have to modify
applications to use MPTCP (if available). It can then be useful to
estimate the impact in case we want to switch from opt-in to opt-out
later.
The MPTCP E2E test has been modified to make sure we can enable MPTCP
either via the source code like it was already the case before or with
this environment variable:
GODEBUG=multipathtcp=1
The documentation has been adapted accordingly.
I don't know if it is too late for Go 1.21 but I had to put a version in
the documentation. The modification is small, the risk seems low and
this was supposed to be there from the beginning according to Russ Cox's
specifications. It can also be backported or only be present in the
future v1.22 if it is easier.
Note: I didn't re-open #56539 or open a new one. It is not clear to me
what I should do in this case.
Fixes#56539
Change-Id: I9201f4dc0b99e3643075a34c7032a95528c48fa0
Reviewed-on: https://go-review.googlesource.com/c/go/+/507375
Reviewed-by: Cherry Mui <cherryyz@google.com>
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RevocationList.RevokedCertificates has been deprecated and
replaced with the new RevocationList.RevokedCertificateEntries field,
not RevocationList.Entries.
Change-Id: I36053e0d67a9997264483d1e04e31774fbab8702
GitHub-Last-Rev: a9f6949b05
GitHub-Pull-Request: golang/go#60984
Reviewed-on: https://go-review.googlesource.com/c/go/+/505935
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Fixes#60978
Change-Id: I3e4bd366dc30ac435698b8f17170695330034683
Reviewed-on: https://go-review.googlesource.com/c/go/+/505795
TryBot-Bypass: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Sameer Ajmani <sameer@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: Ie71bc41bd7f1aecf6ce69a8b310668fdd03da42b
Reviewed-on: https://go-review.googlesource.com/c/go/+/504880
TryBot-Bypass: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Rhys Hiltner <rhys@justin.tv>
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For #57752Fixes#60924
Change-Id: Ie1e16c041885abb51dd6c2f0b7dfa03091cfb338
Reviewed-on: https://go-review.googlesource.com/c/go/+/504879
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Change-Id: I9f008dba7ba6e30f0e62647482a3ed0b51bc1ad0
Reviewed-on: https://go-review.googlesource.com/c/go/+/502997
Reviewed-by: Robert Findley <rfindley@google.com>
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Fixes#60731.
Change-Id: I71fad1c8385b13d036bb0ce7ae6bd21e0f596e51
Reviewed-on: https://go-review.googlesource.com/c/go/+/502657
Reviewed-by: Ian Lance Taylor <iant@google.com>
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For #57411.
Change-Id: I94982d939d16ad17174f801cc167cc10ddc8da30
Reviewed-on: https://go-review.googlesource.com/c/go/+/501696
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
These sections are now complete, remove remaining TODOs. Several entries
were missing CL numbers.
For #58645
Change-Id: I67489356016013be876c4bd522afb977becf54ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/502696
Run-TryBot: Michael Pratt <mpratt@google.com>
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For #59488.
For #58645.
Change-Id: Ia9b76d49825dd74f7e52d829ec6d47e6c2addd76
Reviewed-on: https://go-review.googlesource.com/c/go/+/501825
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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It's not needed per CL 499515.
Change-Id: I2a5ce46be93dad1442c0aad736fd8d230ee35f39
Reviewed-on: https://go-review.googlesource.com/c/go/+/501996
Auto-Submit: Ian Lance Taylor <iant@google.com>
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TryBot-Bypass: Ian Lance Taylor <iant@google.com>
For #60105
For #44886
Change-Id: I8f6cfc4490535979ee8c0d8381c03b03c9c7b9a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/501303
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The returned descriptor now remains in non-blocking mode.
For #58408
For #60211
Change-Id: I88d33c180db642d055b4fed3b03a9afa02e746bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/501699
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
For #59584
Change-Id: Iaa3f8b23010ad452c134ac608c63d2a41cc4e409
Reviewed-on: https://go-review.googlesource.com/c/go/+/501698
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
For #59488
Change-Id: I73ee4d1d8b9d8e6f0aad9e3bb98729aaa0f06a47
Reviewed-on: https://go-review.googlesource.com/c/go/+/501697
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Fill in some of the simpler entries, leave some more TODO entries.
For #58645
Change-Id: I20eb09ba709520ab27301c568d777184a405ffdc
Reviewed-on: https://go-review.googlesource.com/c/go/+/501695
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Reviewed-by: Ian Lance Taylor <iant@google.com>
The section on type inference has not been updated yet for Go 1.21.
Add a temporary note so that readers referred to this section from
the release notes are not confused.
Change-Id: Idc4c74d6d700f891c625289e873ad5aa9c2c5213
Reviewed-on: https://go-review.googlesource.com/c/go/+/501308
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
For #15527
For #57786
Change-Id: I75ed0b4bac8e31fac2afef17dad708dc9a3d74e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/501300
Run-TryBot: Damien Neil <dneil@google.com>
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Fixes#60570.
Change-Id: I7ef834731ea26ceee5ec9b7438fdd8323aaf828e
Reviewed-on: https://go-review.googlesource.com/c/go/+/500416
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Also handle go test -c TODO.
For #15513.
For #56986.
For #57001.
Change-Id: I571ae25d8d8fcd44cb38ac16cdd2a1180016eb94
Reviewed-on: https://go-review.googlesource.com/c/go/+/500956
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Reviewed-by: David Chase <drchase@google.com>
The most important parts of almost any release notes are the
language and tool changes. Those should be the first two sections.
Instead Ports interrupts the flow with information that usually
matters only to very few users.
Move Ports to the end of the release notes.
Change-Id: I78492e91e368184fb5f8e8d44d63f35b8f14eeae
Reviewed-on: https://go-review.googlesource.com/c/go/+/500957
TryBot-Bypass: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
For #58645.
Fixes#57125.
Fixes#57003.
Fixes#57004.
Change-Id: I365929ca36aeb32e9ecd19f870e70869933ba6a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/500239
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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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Change-Id: Ie84cad994c1ffb2c91ce45b2dfb9257e6a7f309b
Reviewed-on: https://go-review.googlesource.com/c/go/+/499957
Reviewed-by: Ian Lance Taylor <iant@google.com>
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This change was already described in the linker section.
Change-Id: I3e36dbd66b3b53c5f0063b0d67d8773383f1f77f
Reviewed-on: https://go-review.googlesource.com/c/go/+/499817
Auto-Submit: Eli Bendersky <eliben@google.com>
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It reads better as a single paragraph. Also added links.
Change-Id: Id6ba54111b63fbd536423272f674e0eb64b087a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/499956
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: Id9a8871af9cc3ac26be539877f2eea3462db6f3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/499955
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Change-Id: Ibcdedb8222a80c0478f783f4a1800e472dbe062c
Reviewed-on: https://go-review.googlesource.com/c/go/+/499935
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Change-Id: I9c6fc4c7e24d0e78086d95dccd61e80bd5ddd856
Reviewed-on: https://go-review.googlesource.com/c/go/+/499815
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Change-Id: Ibc5f23f37e5bd45034771a0205eadac3072d6870
Reviewed-on: https://go-review.googlesource.com/c/go/+/499816
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Auto-Submit: Eli Bendersky <eliben@google.com>
For #59959.
For #58645.
Change-Id: I574153ef2fd61a5e90ec281fca065c42fce22cc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/498263
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Also add a missing </a> in the preceding section.
For #53761
Change-Id: I8e64b86b5b32067f954d58cf9adf86cb4d2eeb2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/499735
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Change-Id: I975b437240df03da84f2ce7c47f7a0097a597f25
Reviewed-on: https://go-review.googlesource.com/c/go/+/499638
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For #51676.
For #58645.
Change-Id: I9045051b5a25c6dfc833eef13e6c105a0d8ae763
Reviewed-on: https://go-review.googlesource.com/c/go/+/499716
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Since log/slog doesn't appear in earlier Go versions, we don't need
to document these proposals as changes.
Change-Id: Iae6ed9ca6bd22d8c46c21deece9ddedf7d739032
Reviewed-on: https://go-review.googlesource.com/c/go/+/498272
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For #48621
For #55079
Change-Id: I279b4fbf07d2fa9de9577559a4e17a57f5692aa3
Reviewed-on: https://go-review.googlesource.com/c/go/+/499618
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For #53685
Change-Id: I237297d19afeb36ad738074d0c61caa7012f65ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/499617
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For #55107
For #56887
For #56892
Change-Id: Ibcca34c931ed3595d877c4573bba221dec66bb5a
Reviewed-on: https://go-review.googlesource.com/c/go/+/499616
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For #47653
Change-Id: Id44c9dba58966f43f188030a53343d890a6ffde7
Reviewed-on: https://go-review.googlesource.com/c/go/+/499419
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For #57803
Change-Id: I8e33f4dd3fc3071bfbf4d2848faefbe8488f5742
Reviewed-on: https://go-review.googlesource.com/c/go/+/499418
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Auto-Submit: Ian Lance Taylor <iant@google.com>
For #53747
Change-Id: Ia5e2f89c1184f2dfd6d672b838b0dbb579e6c954
Reviewed-on: https://go-review.googlesource.com/c/go/+/499417
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Also document the new String methods that call them.
For #54451
Change-Id: I5cd7e0fc6c84097bba6d29c4d6012ed3c8bb1e0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/499177
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For #56986
For #59033
Change-Id: I7d03fe34d418aff97a551b236b5d43506e402871
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While here, I've removed the CL 472195 TODO, which I marked as
RELNOTE=yes by mistake.
For #57441
For #57302
Change-Id: I7563140bf307f8d732f0154d02b8fa0735527323
Reviewed-on: https://go-review.googlesource.com/c/go/+/499515
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For #57411
Change-Id: I56c112bb03dde24c2e2643c9b72ce06158a8e717
Reviewed-on: https://go-review.googlesource.com/c/go/+/499278
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Reviewed-by: Keith Randall <khr@google.com>
Change-Id: I98bdfe8ab338a5b92c466a5aacfa95266171e5c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/499279
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: Ieedddf52ae09cf5a8e9347f0f30aff21e8369787
Reviewed-on: https://go-review.googlesource.com/c/go/+/499281
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TryBot-Bypass: Keith Randall <khr@golang.org>
Fix a broken HTML tag.
Change-Id: I9e7c65c2cc12c7b14ca205f78b78ac1e9c92a3ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/499355
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Also mention errors that implement it.
For #41198
Change-Id: I4f01b112f53b19e2494b701bb012cb2cb52f8962
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For #57436
Change-Id: I99e8b0819c76f1ccf12154a894c9c4c9d68124d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/498602
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For #56539
For #59166
Change-Id: Ief392464916a1a74a8fcc6c3c7bdb213e8c6ef98
Reviewed-on: https://go-review.googlesource.com/c/go/+/498601
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Also move all the language changes to the same part of the release notes.
For #56351
For #57411
Change-Id: Id1c51b5eb8f7d85e61a2ae44ee7d73bb13036631
Reviewed-on: https://go-review.googlesource.com/c/go/+/498755
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Also mention WTF-8 support in the syscall package.
For #32558
For #58977
For #59971
Change-Id: Id1627889b5e498add498748d9bfc69fb58030b35
Reviewed-on: https://go-review.googlesource.com/c/go/+/498600
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Added Value.Clear, deprecated SliceHeader and StringHeader.
For #55002
For #56906
Change-Id: Ib7497aff830d56fad90c31ec28596e71a448e9ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/498757
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For #46159
Change-Id: Ia9cc0827a89d362532d1a662b791de8eebbfb2fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/498756
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Remove x/ repos changes that aren't part of the 1.21 release.
Change-Id: Ia5cbf02ed6c0cc4dc0ff80d68403723b3f9ae0ba
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One of the changes also affects the os package, so mention it
there too.
For #46259
Change-Id: I8041a5ce009725ab210118ee668fc94196d9ff82
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Add a short release note blurb on linker dead-coding of global map
variables.
Updates #58645.
Change-Id: Ibfdd3e2b2b78517db4245b1d7eedd5e75a643b47
Reviewed-on: https://go-review.googlesource.com/c/go/+/498575
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For #37708
Change-Id: I7b04d6331c15771c7d74ff77afd523c435e0dafe
Reviewed-on: https://go-review.googlesource.com/c/go/+/498396
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Reviewed-by: Eli Bendersky <eliben@google.com>
For #44855
Change-Id: I517394b227ea948ed3e1f9ffdaab2bb2676863c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/496795
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For #59488.
Change-Id: Iefabb06014767c5f633082a112a81e9ff5f09a30
Reviewed-on: https://go-review.googlesource.com/c/go/+/498397
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For #57348
Change-Id: I84943711b033d63f0993133f93d9f09ce2af5965
Reviewed-on: https://go-review.googlesource.com/c/go/+/498395
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For #59488.
Change-Id: I50f65216bf02b42c1e0619702833f4a6dbed8925
Reviewed-on: https://go-review.googlesource.com/c/go/+/498136
Reviewed-by: Rob Pike <r@golang.org>
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Put the sections for the various built-ins into alphabetical order
based on the built-in name, while keeping built-ins that belong
together together.
The order is now (captialized letter determines order):
- Append
- Clear
- Close
- Complex, real, imag
- Delete
- Len, cap
- Make
- Min, max (to be inserted here)
- New
- Panic, recover
- Print, println
There are some white space adjustments but no changes to the prose
of the moved sections.
Change-Id: Iaec509918c6bc965df3f28656374de03279bdc9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/498135
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This includes release notes for several small runtime changes, including
runtime/trace and runtime package changes.
For #58645.
Change-Id: I3e9c804da1bb6b385088e16a20d9576c11098021
Reviewed-on: https://go-review.googlesource.com/c/go/+/497095
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
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Reviewed-by: Ansiwen <ansiwen@gmail.com>
Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
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Generated with relnote. I did my best to put things where they made
sense, but some weren't obvious, like the Unicode upgrade and backward
compatibility stuff.
For #58645.
Change-Id: Ic3cd9ef32cec7591ace4d2df1da40e4afd97d083
Reviewed-on: https://go-review.googlesource.com/c/go/+/496316
Auto-Submit: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Fix formatting mistakes in my previous CLs -- a missing code tag
and a broken comment tag.
Change-Id: I7f558f59b4e8fe9cb398d0093e5389b968d89eb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/496115
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Cherry Mui <cherryyz@google.com>
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With CL 408826, CL 413474, etc. reflect.ValueOf no longer
unconditionally escapes its argument, allowing a Value's content
to be allocated on the stack.
Change-Id: I3a0af85c11e2fd0df42b056095565f0ce5548886
Reviewed-on: https://go-review.googlesource.com/c/go/+/494657
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"placeholder" (no space) is already used in the spec and seems to be
the preferred option.
Removed space from "place holder".
Change-Id: I9b98f62f0e3f5adb019b99f5271cc9d19abf505e
GitHub-Last-Rev: ed5aaf9d02
GitHub-Pull-Request: golang/go#59626
Reviewed-on: https://go-review.googlesource.com/c/go/+/484576
Reviewed-by: Ian Lance Taylor <iant@google.com>
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In the language specification under "Constants" the lists matching default
types to untyped contstant types is missing an Oxford comma in the first
list. I found a number of other places in the spec and #23442 that use the
Oxford comma to support its use.
Add missing Oxford comma in Constants default type list.
Change-Id: I4562d692610334bc82452db076145d2414617a04
GitHub-Last-Rev: 8acdb60d6e
GitHub-Pull-Request: golang/go#59528
Reviewed-on: https://go-review.googlesource.com/c/go/+/483555
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Fixes#59506
Change-Id: I2f8b92e93b706b061ca0eb0bd52e5cf798ce9ede
Reviewed-on: https://go-review.googlesource.com/c/go/+/483358
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This change documents the new GODEBUG settings introduced for
html/template and mime/multipart, released with Go 1.19.8 and Go 1.20.3
as part of a security fix.
Updates #59153.
Updates #59234.
Change-Id: I25f4d8245da3301dccccfb44da8ff1a5985392a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/482238
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
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This file is itself template input, so have to hide the template
in the go command example.
Change-Id: Ifc4eaff35ca8dc2fb479f8e28d64c06b2a9c9d3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/480995
Run-TryBot: Russ Cox <rsc@golang.org>
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Reviewed-by: Bryan Mills <bcmills@google.com>
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
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Caleb Spare <cespare@gmail.com>
Auto-Submit: Austin Clements <austin@google.com>
Document the changes to GODEBUG implemented as
part of proposal #56986.
Fixes#56986.
Change-Id: I23153a123e23820c5b22db4767620e037bbdd083
Reviewed-on: https://go-review.googlesource.com/c/go/+/462202
Reviewed-by: Damien Neil <dneil@google.com>
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This is relatively easy using the new traceback iterator.
Ancestor tracebacks are now limited to 50 frames. We could keep that
at 100, but the fact that it used 100 before seemed arbitrary and
unnecessary.
Fixes#7181
Updates #54466
Change-Id: If693045881d84848f17e568df275a5105b6f1cb0
Reviewed-on: https://go-review.googlesource.com/c/go/+/475960
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This initial release notes template is based on previous releases.
For #58645.
Change-Id: I8bae25d6dd9778a69963b8b4903a6dc1c180e15f
Reviewed-on: https://go-review.googlesource.com/c/go/+/470296
Run-TryBot: Than McIntosh <thanm@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
The typechecker already enforces this semantic, but the spec is not
updated when unsafe.{SliceData,String,StringData} were added.
Change-Id: I4ee8c564d5681b2a5fd31ff424a31bdf065d9f3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/467756
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Change-Id: I5e3aca2b8fc78f38c9e2cdc67adf86d57ac85b1c
GitHub-Last-Rev: 0e5ddffe33
GitHub-Pull-Request: golang/go#58353
Reviewed-on: https://go-review.googlesource.com/c/go/+/465615
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Now that the development of the Go 1.20 release is almost done, its
release notes are moved to their eventual long-term home in x/website
in CL 464075. Delete the initial development copy here.
For golang/go#54202.
Change-Id: Ia402d1abd4539fbce415e2a7dffd6709186f08a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/464055
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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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>
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CL 444277 fixed Time.UnmarshalText and Time.UnmarshalJSON to properly
unmarshal timestamps according to RFC 3339 instead of according
to Go's bespoke time syntax that is a superset of RFC 3339.
However, this change seems to have broken an AWS S3 unit test
that relies on parsing timestamps with single digit hours.
It is unclear whether S3 emits these timestamps in production or
whether this is simply a testing artifact that has been cargo culted
across many code bases. Either way, disable strict parsing for now
and re-enable later with better GODEBUG support.
Updates #54580
Change-Id: Icced2c7f9a6b2fc06bbd9c7e90f90edce24c2306
Reviewed-on: https://go-review.googlesource.com/c/go/+/462286
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
The arena goexperiment contains code used inside Google in very
limited use cases that we will maintain, but the discussion on #51317
identified serious problems with the very idea of adding arenas to the
standard library. In particular the concept tends to infect many other
APIs in the name of efficiency, a bit like sync.Pool except more
publicly visible.
It is unclear when, if ever, we will pick up the idea and try to push
it forward into a public API, but it's not going to happen any time
soon, and we don't want users to start depending on it: it's a true
experiment and may be changed or deleted without warning.
The arena text in the release notes makes them seem more official
and supported than they really are, and we've already seen a couple
blog posts based on that erroneous belief. Delete the text to try to
set expectations better.
Change-Id: I4f6e328ac470a9cd410f5f722d0769ef62d5e5ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/462355
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Reviewed-by: Eli Bendersky <eliben@google.com>
