Youlin Feng [Mon, 3 Oct 2022 13:15:12 +0000 (13:15 +0000)]
runtime/cgo: let darwin pthread stacksize follow rlimit
On Mac OS X, the default stack size for non-main threads created by cgo is
fixed at 512KB and cannot be altered by setrlimit. This stack size is too
small for some recursive scenarios. We can solve this problem by explicitly
copying the stack size of the main thread when creating a new thread.
Change-Id: I400d5b2e929a1ee261502914a991e208759f64a8
GitHub-Last-Rev: b29c74599ea1cce4683d25e1ac8a70ffd9b86381
GitHub-Pull-Request: golang/go#53667
Reviewed-on: https://go-review.googlesource.com/c/go/+/415915
Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: hopehook <hopehook@golangcn.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
Paul E. Murphy [Tue, 14 Jun 2022 21:13:51 +0000 (16:13 -0500)]
cmd/link: optimize PPC64 inline plt sequences if local
Indirect branches are much more expensive than direct. If the call is
known to be local, we can replace most of the operations with a nop,
and call directly.
Updates #53345
Change-Id: Icfff9ec1f6c7f8e4181f0f28976033308d2f53eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/412715 Reviewed-by: Cherry Mui <cherryyz@google.com>
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eric fang [Wed, 17 Aug 2022 10:01:17 +0000 (10:01 +0000)]
cmd/compile: add late lower pass for last rules to run
Usually optimization rules have corresponding priorities, some need to
be run first, some run next, and some run last, which produces the best
code. But currently our optimization rules have no priority, this CL
adds a late lower pass that runs those rules that need to be run at last,
such as split unreasonable constant folding. This pass can be seen as
the second round of the lower pass.
For example:
func foo(a, b uint64) uint64 {
d := a+0x1234568
d1 := b+0x1234568
return d&d1
}
The code generated by the master branch:
0x0004 00004 ADD $19088744, R0, R2 // movz+movk+add
0x0010 00016 ADD $19088744, R1, R1 // movz+movk+add
0x001c 00028 AND R1, R2, R0
This is because the current constant folding optimization rules do not
take into account the range of constants, causing the constant to be
loaded repeatedly. This CL splits these unreasonable constants folding
in the late lower pass. With this CL the generated code:
0x0004 00004 MOVD $19088744, R2 // movz+movk
0x000c 00012 ADD R0, R2, R3
0x0010 00016 ADD R1, R2, R1
0x0014 00020 AND R1, R3, R0
This CL also adds constant folding optimization for ADDS instruction.
In addition, in order not to introduce the codegen regression, an
optimization rule is added to change the addition of a negative number
into a subtraction of a positive number.
Change-Id: I7c3cc0f48631af73cf34ad3c731c380f46c72359
Reviewed-on: https://go-review.googlesource.com/c/go/+/435257
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Zeke Lu [Tue, 4 Oct 2022 07:10:09 +0000 (07:10 +0000)]
reflect: avoid unnecessary copy of funcTypes
Imagine that initFuncTypes is called with n=3, funcTypes will be
[nil, nil, nil, **reflect.rtype] afterward, then it's called with n=2.
The current implementation will copy funcTypes because funcTypes[2] is
nil. This is unnecessary. It should make a new slice and copy funcTypes
into it only when n >= len(funcTypes).
Updates #56011.
Change-Id: Ia093d2f550d6924a4c58bcd21325093e32b40baa
GitHub-Last-Rev: a599eae7c2f6a388dfe1ff39cf61fd645885a64d
GitHub-Pull-Request: golang/go#56024
Reviewed-on: https://go-review.googlesource.com/c/go/+/438395
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Bryan Mills [Tue, 4 Oct 2022 19:55:56 +0000 (19:55 +0000)]
Revert "os/exec: make StdoutPipe and StderrPipe safe to Close concurrently"
This reverts CL 437176.
Reason for revert: broke programs that plumb StdoutPipe from one command to Stdin on another and then call Wait on the former.
os/exec itself uses a type-assertion to *os.File to determine whether to copy stdin using a goroutine or just pass a file descriptor. An early Wait using a *os.File is benign (because closing the pipe doesn't close the child's inherited file descriptor), but an early Wait using a non-*os.File is not.
cmd/cgo, cmd/compile, cmd/link: remove old style build tags
[Roll-forward of CL 436915 by Tobias Klauser, with builtin and gen
directories dropped now that they've been handled separately.]
The minimum bootstrap version for Go ≥ 1.20 is Go 1.17. That version
supports the new style //go:build lines. Thus the old style //+build
lines can be dropped in this part of the tree as well. Leave the
//+build lines in cmd/dist which will ensure the minimum Go version
during bootstrap.
cmd/compile: rename gen and builtin to _gen and _builtin
These two directories are full of //go:build ignore files.
We can ignore them more easily by putting an underscore
at the start of the name. That also works around a bug
in Go 1.17 that was not fixed until Go 1.17.3.
Change-Id: Ia5389b65c79b1e6d08e4fef374d335d776d44ead
Reviewed-on: https://go-review.googlesource.com/c/go/+/435472
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Than McIntosh [Mon, 3 Oct 2022 22:40:59 +0000 (18:40 -0400)]
runtime/coverage: use atomic access for counter reads
Read counters using atomic ops so as to avoid problems with the race
detector if a goroutine happens to still be executing at the end of a
test run when we're writing out counter data. In theory we could guard
the atomic use on the counter mode, but it's better just to do it in
all cases, leaves us with a simpler implementation.
Fixes #56006.
Change-Id: I81c2234b5a1c3b00cff6c77daf2c2315451b7f6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/438256
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Than McIntosh [Tue, 4 Oct 2022 13:00:31 +0000 (09:00 -0400)]
cmd/internal/sys: migrate support.go functions to new internal pkg
Separate out the functions from cmd/internal/sys/support.go and
migrate them to a new package internal/platform, so that functions such as
"RaceDetectorSupported" can be called from tests in std as well as in
cmd. This isn't a complete move of everything in cmd/internal/sys;
there are still many functions left.
The original version of this CL (patch set 1) called the new package
"internal/sys", but for packages that needed both "internal/sys" and
"cmd/internal/sys" the import of the former had to be done with a
different name, which was confusing and also required a hack in
cmd/dist.
Updates #56006.
Change-Id: I866d62e75adbf3a640a06e2c7386a6e9e2a18d91
Reviewed-on: https://go-review.googlesource.com/c/go/+/438475 Reviewed-by: Bryan Mills <bcmills@google.com>
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Archana R [Thu, 29 Sep 2022 14:53:18 +0000 (09:53 -0500)]
cmd/go: update gcc version check for asan support on ppc64le
Update the minimum version required for asan to be gcc9.
This will ensure that go build -asan is supported only on
systems with the required version of gcc. Update the asan
error message to include the name of the compiler (the
error message is updated to include the name of the compiler
instead of C compiler for other platforms as well).
SecCreatePolicySSL returns null when called from a binary that has a
strange path. This seems to be a weirdo macos bug, but we should be
properly handling those null returns anyway. Also add handling for
SecTrustGetCertificateAtIndex.
Fixes #54590
Change-Id: I251e74f3b0bf65890a80b094b3e88718e13fd3db
Reviewed-on: https://go-review.googlesource.com/c/go/+/438135
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Daniel Martí [Thu, 22 Sep 2022 12:35:08 +0000 (13:35 +0100)]
encoding/gob: prevent a decoder state overflow
When decoding a struct, if a positive delta is large enough to overflow
when added to fieldnum, we would panic due to the resulting negative index.
Instead, catch this problem and produce an error like we do with
negative delta integers. If fieldnum ends up being negative or smaller
than state.fieldnum, the addition overflowed.
While here, remove an unnecessary break after an error call,
since those error functions cause a panic.
Fixes #55337.
Change-Id: I7a0e4f43e5c81a703e79c1597e3bb3714cc832c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/432715 Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Bryan Mills <bcmills@google.com>
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Cuong Manh Le [Mon, 3 Oct 2022 16:46:13 +0000 (23:46 +0700)]
reflect: fix race condition on funcTypes
CL 425314 made creating funcTypes using StructOf, and using a mutex to
protect read+write to funcTypes. However, after initializing funcTypes,
it is accessed in FuncOf without holding lock, causing a race.
Fixing it by returning the n-th Type directly from initFuncTypes, so the
accessing funcTypes will always be guarded by a mutex.
Fixes #56011
Change-Id: I1b50d1ae342943f16f368b8606f2614076dc90fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/437997 Reviewed-by: Keith Randall <khr@google.com>
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cmd/trace: replace loop with append(slice, slice2...)
Change-Id: I4686f36a8f718fea1a08d816bc14e24e3528bb07
Reviewed-on: https://go-review.googlesource.com/c/go/+/436706
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miller [Sat, 1 Oct 2022 13:39:47 +0000 (14:39 +0100)]
runtime/coverage: recognise Plan 9 error message in emitToNonexistentDir
In TestCoverageApis/emitToNonexistentDir there is a list of error
messages to match when a nonexistent directory is opened. The list
has message text only for Unix and Windows. Add the corresponding
text for Plan 9.
Fixes #55983
Change-Id: Id32130300cb02394b319e1aeb1229ee147b4afb2
Reviewed-on: https://go-review.googlesource.com/c/go/+/437557 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: David du Colombier <0intro@gmail.com>
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chanxuehong [Sat, 1 Oct 2022 11:37:36 +0000 (11:37 +0000)]
go/token: fix File.AddLineColumnInfo logic
The offset of the line info should be smaller than the file size.
Otherwise, it should be ignored.
Before the change, such an invalid line info won't be ignored when it's
the first one to add.
Félix Dorn [Sat, 1 Oct 2022 21:53:19 +0000 (21:53 +0000)]
log/syslog: return nil directly
Reduce return complexity.
Change-Id: I280a0fe1a49371e231e93e0d3e177730b6f28769
GitHub-Last-Rev: 2ebc10641d1b6706a66132a84c1c5b0f394034c6
GitHub-Pull-Request: golang/go#55989
Reviewed-on: https://go-review.googlesource.com/c/go/+/437516
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cui fliter [Fri, 30 Sep 2022 09:38:39 +0000 (09:38 +0000)]
regexp: fix a few function names on comments
Change-Id: I192dd34c677e52e16f0ef78e1dae58a78f6d1aac
GitHub-Last-Rev: 1638a7468951df72f13fea34855b6a4fcbb08226
GitHub-Pull-Request: golang/go#55967
Reviewed-on: https://go-review.googlesource.com/c/go/+/436885
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Ian Lance Taylor [Sat, 27 Aug 2022 02:22:50 +0000 (19:22 -0700)]
os: use backslashes for DirFS on Windows
Otherwise DirFS of a UNC path does not work.
Fixes #54694
Change-Id: I82c1c436f7c26b3935c2cc4fd238daf094fc4d86
Reviewed-on: https://go-review.googlesource.com/c/go/+/426094 Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: Ifaa73b64e5b6a1d37c753e2440b642478d7dfbce
Reviewed-on: https://go-review.googlesource.com/c/go/+/436957
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cui fliter [Fri, 30 Sep 2022 03:41:42 +0000 (03:41 +0000)]
syscall: remove redundant type conversion
Change-Id: Iae290216687fd1ce8be720600157fb78cc2446d0
GitHub-Last-Rev: 4fba64ecb14a704d39f6ecc33989522bcac6656f
GitHub-Pull-Request: golang/go#55959
Reviewed-on: https://go-review.googlesource.com/c/go/+/436881
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Daniel Martí [Tue, 5 Jul 2022 14:57:37 +0000 (15:57 +0100)]
cmd/go: remove the -i build flag
The flag is now removed from `go build` and `go test`.
It has been deprecated since Go 1.16, printing a warning message.
The idea was to fully delete it in Go 1.17, but that didn't happen.
First, delete the BuildI variable and its flag declarations,
as well as all the bits of docs that mentioned the flag.
Second, delete or simplify the code paths that used BuildI.
Third, adapt the tests to the removed flag.
Some of them are removed, like test_relative_import_dash_i.txt and
TestGoTestDashIDashOWritesBinary, as they centered around the flag.
The rest are modified to not cover or use the flag.
Finally, change cmd/dist to no longer use `go install -i`.
The purpose of the flag was that, when bootstrapping the toolchain,
all of its dependencies would also be installed as object files.
When removing the use of the -i flags, the checkNotStale call right
after building toolchain3 would fail as expected,
because runtime/internal/sys is now only up to date in the build cache.
Luckily, that's not a problem: we run `go install std cmd` right after,
so all standard library packages will be installed as object files.
Move the checkNotStale call after that install command.
Fixes #41696.
Change-Id: I5d8139f18aaee07da886d483e663f3f2f00d5f3a
Reviewed-on: https://go-review.googlesource.com/c/go/+/416094 Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Mikael Urankar [Sun, 18 Sep 2022 15:33:42 +0000 (17:33 +0200)]
cmd/dist: add support for freebsd/riscv64
Updates #53466
Change-Id: I6643b4254dc707351d397018cee485bb508dde94
Reviewed-on: https://go-review.googlesource.com/c/go/+/431659 Reviewed-by: Ian Lance Taylor <iant@google.com>
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This is the last failed test in Unified IR, since it can inline f5 and
f6 but the old frontend can not. So marking them as //go:noinline, with
a TODO for re-enable once GOEXPERIMENT=nounified is gone.
Fixes #53058
Change-Id: Ifbbc49c87997a53e1b323048f0067f0257655fad
Reviewed-on: https://go-review.googlesource.com/c/go/+/437217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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The mismatch between Unified IR and the old frontend is not about how
they number the closures, but how they name them. For nested closure,
the old frontend use the immediate function which contains the closure
as the outer function, while Unified IR uses the outer most function as
the outer for all closures.
That said, what important is matching the number of closures, not their
name prefix. So this CL relax the test to match both "main.func1.func2"
and "main.func1.2" to satisfy both Unified IR and the old frontend.
Updates #53058
Change-Id: I66ed816d1968aa68dd3089a4ea5850ba30afd75b
Reviewed-on: https://go-review.googlesource.com/c/go/+/437216 Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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os/exec: make StdoutPipe and StderrPipe safe to Close concurrently
For #50436, I want to be able to close the pipes returned by
StdoutPipe and StderrPipe after the Context has been canceled
and the WaitDelay has subsequently expired.
However, the fact that the exec.onceCloser wrapper for StdinPipe
(added in CL 13329043) was retained in CL 65490 suggests to me that
(*os.File).Close is still not safe to call concurrently.
This may cause type assertions of these ReadClosers to *os.File that
once succeeded to no longer do so. However, the StdoutPipe and
StderrPipe methods return interfaces, not concrete *os.Files, so
callers already should not have been relying on that implementation
detail — and as far as I can tell the closeOnce wrapper does not mask
any (*os.File) methods, so assertions to any interface type that
previously succeeded will continue to do so.
This change is logically part of CL 401835, but since it may expose
fragile type-assertions in callers I want to keep it separate for
clearer bisection of any new test failures.
This change undoes CL 401894, because on further consideration
it turns out not to be needed.
This also makes (*Cmd).closeDescriptors a free function, since it does
not actually use the receiver in any way and is not needed to satisfy
any interfaces.
Ian Lance Taylor [Thu, 29 Sep 2022 22:00:08 +0000 (15:00 -0700)]
debug/dwarf: don't crash on negative range/rnglist offset
No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
Fixes #55948
Change-Id: I7ba40ba928d2a14d4ac5b39f966173f3868d4729
Reviewed-on: https://go-review.googlesource.com/c/go/+/436876
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internal/singleflight: avoid race between multiple Do calls
When the first call to Do finished, it calls c.wg.Done() to signal
others that the call was done. However, that happens without holding
a lock, so if others call to Do complete and be followed by a call to
ForgotUnshared, that then returns false.
Fixing this by moving c.wg.Done() inside the section guarded by g.mu, so
the two operations won't be interrupted.
Thanks bcmills@ for finding and suggesting fix.
Change-Id: I850f5eb3f9751a0aaa65624d4109aeeb59dee42c
Reviewed-on: https://go-review.googlesource.com/c/go/+/436437 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Bryan Mills <bcmills@google.com>
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Change-Id: I4698d0fa78108d83ee91732e8d3878dbff7f9c90
Reviewed-on: https://go-review.googlesource.com/c/go/+/436711
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internal/singleflight: fix duplicate deleting key when ForgetUnshared called
A key may be forgotten while the call is still in flight. So when the
call finished, it should only delete the key if that key is associated
with the call. Otherwise, we may remove the wrong newly created call.
Fixes #55343
Change-Id: I4fa72d79cad006e5884e42d885d193641ef84e0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/433315 Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Michael Pratt [Fri, 9 Sep 2022 16:29:48 +0000 (12:29 -0400)]
cmd/link/internal/ld: panic if inlined functions missing FuncInfo
All inlined functions are Go functions, and thus should be capable of
having a FuncInfo. Missing FuncInfo is likely indication of a compiler
bug that dropped the symbol too early, failing to add it to the symbol
list used for writing output. I believe all existing cases have been
fixed; this check will prevent regressions.
The exception is -linkshared mode. There symbols are loaded from the
shared library, and the FuncInfo is not available. This is a bug, as it
can result in incorrect the FuncID in inlinedCall, but it is very
involved to fix.
For #54959.
For #55954.
Change-Id: Ib0dc4f1ea62525b55f68604d6013ff33223fdcdd
Reviewed-on: https://go-review.googlesource.com/c/go/+/429637
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Michael Pratt [Fri, 9 Sep 2022 20:23:39 +0000 (16:23 -0400)]
cmd/compile: eagerly create LSym for closures
The linker needs FuncInfo metadata for all inlined functions. This is
typically handled by gc.enqueueFunc calling ir.InitLSym for all function
declarations in typecheck.Target.Decls (ir.UseClosure adds all closures
to Decls).
However, non-trivial closures in Decls are ignored, and are insteaded
enqueued when walk of the calling function discovers them.
This presents a problem for direct calls to closures. Inlining will
replace the entire closure definition with its body, which hides the
closure from walk and thus suppresses symbol creation.
Explicitly create a symbol early in this edge case to ensure we keep
this metadata.
InitLSym needs to move out of ssagen to avoid a circular dependency (it
doesn't have anything to do with ssa anyway). There isn't a great place
for it, so I placed it in ir, which seemed least objectionable.
The added test triggers one of these inlined direct non-trivial closure
calls, though the test needs CL 429637 to fail, which adds a FuncInfo
assertion to the linker. Note that the test must use "run" instead of
"compile" since the assertion is in the linker, and "compiler" doesn't
run the linker.
Fixes #54959.
Change-Id: I0bd1db4f3539a78da260934cd968372b7aa92546
Reviewed-on: https://go-review.googlesource.com/c/go/+/436240
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Andrew Pogrebnoy [Mon, 1 Aug 2022 14:58:17 +0000 (17:58 +0300)]
runtime: move epoll syscalls to runtime/internal/syscall
This change moves Linux epoll's syscalls implementation to the
"runtime/internal/syscall" package. The intention in this CL was to
minimise behavioural changes but make the code more generalised. This
also will allow adding new syscalls (like epoll_pwait2) without the
need to implement assembly stubs for each arch.
It also drops epoll_create as not all architectures provide this call.
epoll_create1 was added to the kernel in version 2.6.27 and Go requires
Linux kernel version 2.6.32 or later since Go 1.18. So it is safe to
always use epoll_create1.
For #53824
For #51087
Change-Id: I9a6a26b7f2075a38e041de1bab4691da0ecb94fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/421994 Reviewed-by: Michael Pratt <mpratt@google.com>
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Change-Id: I268033bfcda34b76ef1d3a3446d6d1d875fc33ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/436716
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Change-Id: Ie1e76d2e99bf2af7f064c9073c1fb866086962f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/436715
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cmd/cgo, cmd/compile, cmd/link: remove old style build tags
The minimum bootstrap version for Go ≥ 1.20 is Go 1.17. That version
supports the new style //go:build lines. Thus the old style //+build
lines can be dropped in this part of the tree as well. Leave the
//+build lines in cmd/dist which will ensure the minimum Go version
during bootstrap.
Mikael Urankar [Sun, 18 Sep 2022 15:39:37 +0000 (17:39 +0200)]
cmd/link/internal/riscv64: add support for freebsd/riscv64
Updates #53466
Change-Id: Ifa1b8fe79f952a08dbdf91ae5ab23e4431e66134
Reviewed-on: https://go-review.googlesource.com/c/go/+/431660 Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
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Change-Id: Ifa78c98bf919ea62136f19b2bad0a8ee33afc646
Reviewed-on: https://go-review.googlesource.com/c/go/+/435695
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Change-Id: I1257270c55d69962988b6034e7341a9142a0c449
Reviewed-on: https://go-review.googlesource.com/c/go/+/436720
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cmd/compile/internal/noder: remove unnecessary assignment to the blank identifier
Change-Id: I51dd087e630bf433c30d0aaaf3715b62524eb432
Reviewed-on: https://go-review.googlesource.com/c/go/+/436647
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Change-Id: I59b3e72382433a6dd82306f026171f3af4a6cba7
Reviewed-on: https://go-review.googlesource.com/c/go/+/436717 Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: I4b596b252c1785b13c4a166e9ef5f4ae812cd1bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/436704
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cmd/internal/obj: call delete directly without check exist
Change-Id: I5350c6374cd39ce4512d29cd8a341c4996f3b601
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Change-Id: I20956187e925ef6ab35d23b23c40bbb0ee55ef4a
Reviewed-on: https://go-review.googlesource.com/c/go/+/436702
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cmd/internal/cov: use io.SeekStart, io.SeekCurrent, and io.SeekEnd
Change-Id: Ibf7e33e42c649783eaa0e638babff22d96ab51c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/436701
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cmd/go/internal/modindex: should omit comparison to bool constant
Change-Id: Iea75d0475e1cc8f794a7bae864c6ce0e6e33cb6c
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cmd/go/internal/list: should omit comparison to bool constant
Change-Id: Ieef05be39bad1263eacedb33c2043ee83080f629
Reviewed-on: https://go-review.googlesource.com/c/go/+/436697
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Change-Id: I982835eb0d051e48964fc4a66018514c7203dd0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/436696
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Change-Id: I892f17a8a6464d53dbf330a41439a81cb8873262
Reviewed-on: https://go-review.googlesource.com/c/go/+/436654
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Change-Id: I32ab2f2dcc5e8357b8e832bc40f688a88550007f
Reviewed-on: https://go-review.googlesource.com/c/go/+/436650
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internal: use io.SeekStart, io.SeekCurrent, and io.SeekEnd
Change-Id: I23ab738b73bc33d3b0b10013c3fadd95b5b24681
Reviewed-on: https://go-review.googlesource.com/c/go/+/436719
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internal: use time.Since instead of time.Now().Sub
Change-Id: I536c7fad84a63e96658c6930a5a77fd70edca33c
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Change-Id: Ia2b376d134d4fd273924de2e4cdee9eba5a15c57
Reviewed-on: https://go-review.googlesource.com/c/go/+/436707 Reviewed-by: Ian Lance Taylor <iant@google.com>
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cui fliter [Wed, 28 Sep 2022 08:47:08 +0000 (08:47 +0000)]
cmd/fix: use strings.Cut
Change-Id: Ibee86b4c5dc9a18df9bdc65b0ec8339ee1cac7a9
GitHub-Last-Rev: 336580707cd58f2c17ec4c686d54982417d1a4b4
GitHub-Pull-Request: golang/go#55911
Reviewed-on: https://go-review.googlesource.com/c/go/+/435739 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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cui fliter [Thu, 29 Sep 2022 12:46:10 +0000 (12:46 +0000)]
cmd: fix a few function names on comments
Change-Id: Ia0896bd1edf2558821244fecd1c297b599472f47
GitHub-Last-Rev: cfd1e1091a064cdc38469c02c6c013635d7d437b
GitHub-Pull-Request: golang/go#55944
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cui fliter [Thu, 29 Sep 2022 12:56:21 +0000 (12:56 +0000)]
crypto: fix a few function names on comments
Change-Id: I06f85f78c4c802142fc9207b100753decd568274
GitHub-Last-Rev: 4ad4c0f5e93df9ea83deb86b814167e661bba0ff
GitHub-Pull-Request: golang/go#55945
Reviewed-on: https://go-review.googlesource.com/c/go/+/436639
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Change-Id: I164d350ca480640996055dedf38d962921c474a6
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Rename "ifaceWords" to "efaceWords", since we are defining
an empty interface.
Change-Id: I7151fb730a081a800e6dd28bcba831787ee9d6a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/432815 Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: I4f7581d1f4cd8a305acc02454e032c0788d39283
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net/http: using strings.CutPrefix replace strings.HasPrefix and strings.TrimPrefix
Change-Id: I0b7b6e4e9d2539e4fcb5c08430ba5a74733fad3c
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Change-Id: I2854b5e7b48c4c189df84cb7281b7b7de780eebd
Reviewed-on: https://go-review.googlesource.com/c/go/+/435938
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Change-Id: Icfa3fd519df48f8d7d7aa3795535fd7e6aaa159f
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Change-Id: Id4c3a140d9619796aee1ba3214f7d5fce040b4e3
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Change-Id: I4730673130bdfbda9987dcb5869f421082f92150
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Robert Griesemer [Thu, 29 Sep 2022 18:18:09 +0000 (11:18 -0700)]
go/types, types2: use "generic" rather than "parameterized" in error messages
Fix a couple of places where we still use "parameterized".
Change-Id: I2c70356d4e363ee709c5ef19ec8786956d5e9001
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Damien Neil [Thu, 22 Sep 2022 17:43:26 +0000 (10:43 -0700)]
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
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