Update cmd/doc and go/doc for the generics, by adding handling for type
parameters and the new embedded interface elements.
Specifically:
- Format type parameters when summarizing type and function nodes.
- Find the origin type name for instantiation expressions, so that
methods are associated with generic type declarations.
- Generalize the handling of embedding 'error' in interfaces to
arbitrary predeclared types.
- Keep embedded type literals.
- Update filtering to descend into embedded type literals.
Also add "any" to the list of predeclared types.
Updates #49210
Change-Id: I6ea82869f19c3cdbc3c842f01581c8fc7e1c2ee7
Reviewed-on: https://go-review.googlesource.com/c/go/+/359778
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
The x/sys/windows package currently uses go:linkname for other facilities
inside of runtime that are not suitable to be exposed as a public API
due to their dangers but are still necessary for manipulating any
low-level plumbing that the runtime controls.
Logging, via the built-in println and panic handler, is one such
low-level plumbing feature. In this case, x/sys/windows/svc needs to be
able to redirect panics to the Windows event log. Because the event log
is a complicated interface, this requires a bit more fiddling than the
simple solution used on Android (baking it into runtime itself), and
because Windows services are very diverse, the event log might not even
always be a desirable destination.
This commit accomplishes this by exposing a function pointer called
"overrideWrite" that low-level runtime packages like x/sys/windows/svc
can use to redirect output logs toward the event log or otherwise.
It is not safe or acceptable to use as a generic mechanism, and for that
reason, we wouldn't want to expose this as a real stable API, similar to
the other instances of go:linkname in x/sys/windows. But for packages
that must interoperate with low-level Go runtime fundamentals, this is a
safety hatch for packages that are developed in tandem with the runtime.
x/sys/windows is one such package.
Updates #42888.
Change-Id: I77a32ff7e1494324e8cc38e792e007f86d32672d
Reviewed-on: https://go-review.googlesource.com/c/go/+/278792
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
The test had been setting an arbitrary 200ms timeout to allow the
server's handler to set up before timing out. That is not only
potentially flaky on slow machines, but also typically much longer
than necessary. Replace the hard-coded timeout with a much shorter
initial timeout, and use exponential backoff to lengthen it if needed.
This allows the test to be run about 20x faster in the typical case,
which may make it easier to reproduce rare failure modes by running
with a higher -count flag.
For #43120
Change-Id: I1e0d0ec99d5a107fff56e3bcc7174d686ec582d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/361275
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
It appears Windows 7 ignores WER_FAULT_REPORTING_NO_UI WerSetFlags
API flag.
And now after CL 307372, runtime will display WER GUI dialogue.
We don't want to introduce random GUI dialogues during Go program
execution. So disable dump crash creation on Windows 7 altogether.
Updates #20498
Change-Id: Ie268a7d4609f8a0eba4fe9ecf250856b0a61b331
Reviewed-on: https://go-review.googlesource.com/c/go/+/360617
Trust: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
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Reviewed-by: Patrik Nyblom <pnyb@google.com>
These functions are exported for the compiler and are used after
type checking is finished. There is no need to call under() in
their implementations; they can rely entirely on the public API.
This opens the door to moving them into the compiler eventually.
They may also be slightly more efficient.
Change-Id: Ib4f83d2dcf82e3c319c3147e01ecaea684553ea5
Reviewed-on: https://go-review.googlesource.com/c/go/+/361214
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
- reordered some functions for better organization
- renamed single arguments typ to t for consistency
- updated some comments
No functional changes.
Change-Id: I4362ac48044595cdf5c3d9eb7b2f7b94e776d65b
Reviewed-on: https://go-review.googlesource.com/c/go/+/360956
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This is s/is_/is/ throughout. No other changes.
Change-Id: I1be77a209133edc68a6dec0677a4991a7683f116
Reviewed-on: https://go-review.googlesource.com/c/go/+/361134
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Rename the isX predicates to allX to clearly identify that these
predicates are looking inside type parameters.
Introduce is_X as predicates that do not look
inside type parameters so we can see all call sites.
The next CL will rename them all back to isX.
Review all call sites and use correct predicate.
Replace the single helper function is with isBasic and allBasic.
Change-Id: I3430ccfc466fdedf4b58a6158f95d47b9020f7a5
Change-Id: I81116b87cf8f2e17526723c7440676d133057aca
Reviewed-on: https://go-review.googlesource.com/c/go/+/360955
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This is a clean port of CL 360938 from go/types to types2.
For #49215.
Change-Id: If20779c862b71641cb6afe4c281fbad5488a8abe
Reviewed-on: https://go-review.googlesource.com/c/go/+/361266
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
After removing trivial wrapper types, the source needs to be updated
with new type, otherwise, it leads to mismatch between field offset and
the source type for selecting struct/array.
Fixes#49249
Change-Id: I26f9440bcb2e78bcf0617afc21d9d40cdbe4aca6
Reviewed-on: https://go-review.googlesource.com/c/go/+/360057
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
RegEnumKeyEx has an undocumented requirement that subsequent calls need
to be made from the same thread. This change documents that requirement
and fixes uses of it in std.
Fixes#49320.
Change-Id: I6d182227e22dd437996a878b3a978943f01b2d61
Reviewed-on: https://go-review.googlesource.com/c/go/+/361154
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Just add a test for another function that is not monomorphisable, which
comes from the Featherweight Go paper.
Updates #48018
Change-Id: I664e3f48412b02678e32b50204dc4befae90374c
Reviewed-on: https://go-review.googlesource.com/c/go/+/361262
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Type parameters only exist within the scope of a type or function
declaration, so there is really no reason to package-qualify them. It is
also confusing to do so, as it makes their type string look like a
defined type.
Fixes#49215
Change-Id: I986c527e78d45f3cadd75bc3b244e23dabe707ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/360938
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This redundancy is now caught by the improved printf vet checker.
Updates #49322
Change-Id: Ic7a931b8d4838be02ebb855b69624b95093bd114
Reviewed-on: https://go-review.googlesource.com/c/go/+/361265
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Zvonimir Pavlinovic <zpavlinovic@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This redundancy is now caught by the improved printf vet checker
(golang/go#30436).
Updates #49322
Change-Id: Id450247adc6fa28a9244c019be3c1b52c2d17f49
Reviewed-on: https://go-review.googlesource.com/c/go/+/361263
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Zvonimir Pavlinovic <zpavlinovic@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
These were identical. This is a preliminary step
towards remove allocs per UDP receive.
Change-Id: I83106cd3f1fe4bc5bae2d1b0ebd23eedd820abed
Reviewed-on: https://go-review.googlesource.com/c/go/+/361258
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
These were identical. This is a preliminary step
towards remove allocs per UDP send.
Change-Id: I21e1264c7d4747baa626ddb93afff4c1cf225d13
Reviewed-on: https://go-review.googlesource.com/c/go/+/361256
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Change-Id: I67998f70969ac6e6ff1b52a56e49a61ef167ed50
Reviewed-on: https://go-review.googlesource.com/c/go/+/361055
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
When drivers return driver.ErrBadConn, no meaningful
information about what the cause of the problem is
returned. Ideally the driver.ErrBadConn would be
always caught with the retry loop, but this is not
always the case. Drivers today must choose between
returning a useful error and use the rety logic.
This allows supporting both.
Fixes#47142
Change-Id: I454573028f041dfdf874eed6c254fb194ccf6d96
Reviewed-on: https://go-review.googlesource.com/c/go/+/333949
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
Trust: Daniel Theophanes <kardianos@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
CL 331490 and friends added new API to package syscall.
This was a mistake that we need to fix before Go 1.18 is released.
Change-Id: I697c9a4fa649d564822f585dc163df5ab9e5ae08
Reviewed-on: https://go-review.googlesource.com/c/go/+/361216
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Use go.shape instead of .shape as the package the compiler uses
to store shape types.
Prevent path escaping for compiler-internal types, so we don't
need to see %2e everywhere.
Change-Id: I98e39c3b6472560113bdea7e0ba6eb7b81cb35e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/361174
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
Fix idle connection reuse so that ConnMaxIdleTime clears down excessive
idle connections.
This now ensures that db.freeConn is ordered by returnedAt and that
connections that have been idle for the shortest period are reused
first.
In addition connectionCleanerRunLocked updates the next check deadline
based on idle and maximum life time information so that we avoid waiting
up to double MaxIdleTime to close connections.
Corrected the calling timer of connectionCleaner.
Fixes#39471
Change-Id: I6d26b3542179ef35aa13e5265a89bc0f08ba7fa1
Reviewed-on: https://go-review.googlesource.com/c/go/+/237337
Reviewed-by: Tamás Gulácsi <tgulacsi78@gmail.com>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Trust: Ian Lance Taylor <iant@golang.org>
On 64-bit, this is more efficient, and on ARM64, this prevents the time
from moving backwards due to the weaker memory model. On ARM32 due to
the weaker memory model, we issue a memory barrier.
Updates #48072.
Change-Id: If4695716c3039d8af14e14808af217f5c99fc93a
Reviewed-on: https://go-review.googlesource.com/c/go/+/361057
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
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Reviewed-by: Austin Clements <austin@google.com>
Pointers to arrays can be used to cast from a slice. We need
the shape of such type params to be different so we can compile
those casts correctly.
This is kind of a big hammer to fix#49295. It would be nice to
only do this when we know there's a []T->*[N]T conversion.
Fixes#49295
Change-Id: Ibda33057fab2dd28162537aab0f1244211d68e3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/361135
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
TestCPUProfileMultithreadMagnitude compares Go's CPU profile against the
OS's accounting of the process's execution time, expecting them to be
near equal. Background work from the runtime (especially in the garbage
collector) can add significant noise to that measurement and flakiness
to the test. Disable automatic GC cycles during the test.
Updates #49065
Change-Id: Ie88895bfea17374278c5187f3a83e9f486bd37fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/359934
Reviewed-by: Michael Pratt <mpratt@google.com>
Trust: Michael Pratt <mpratt@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
Add test for indexing on variables whose types are constrained to
various kinds of types.
Change-Id: I991eecfe39dba5d817c0fbe259ba558d4881ea84
Reviewed-on: https://go-review.googlesource.com/c/go/+/360867
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This provides the runtime glue (_rt0_riscv64_linux_lib) for c-archive and c-shared
support, along with enabling both of these buildmodes on linux/riscv64.
Both misc/cgo/testcarchive and misc/cgo/testcshared now pass on this platform.
Fixes#47100
Change-Id: I7ad75b23ae1d592dbac60d15bba557668287711f
Reviewed-on: https://go-review.googlesource.com/c/go/+/334872
Trust: Joel Sing <joel@sing.id.au>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
The X3 (aka GP) register will potentially be loaded with the __global_pointer$ symbol
during program start up (usually by the dynamic linker). As such, non-Go code may depend
on the contents of GP and calculate offsets based on it, including code called via cgo
and signal handlers installed by non-Go code. As such, stop using the X3 register so
that there are fewer issues interacting between Go and non-Go code.
While here remove the X4 (TP) name from the assembler such that any references must
use the 'TP' name. This should reduce the likelihood of accidental use (like we do
for the 'g' register). The same applies for X3 (GP) when the -shared flag is given.
Updates #47100
Change-Id: I72e82b5ca3f80c46a781781345ca0432a4111b74
Reviewed-on: https://go-review.googlesource.com/c/go/+/351859
Trust: Joel Sing <joel@sing.id.au>
Run-TryBot: Joel Sing <joel@sing.id.au>
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TryBot-Result: Go Bot <gobot@golang.org>
Same logic as CL 357449 (including CL 360815), just ported to types2.
Updates #48098.
Change-Id: I4578f7329bb4ffc42410025bb6cb97e24697ebfd
Reviewed-on: https://go-review.googlesource.com/c/go/+/360857
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Fixes#49288
Change-Id: I7bfcbecbefa68871a3e556935a73f241fff44c0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/360861
Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This is a port of CL 360795 to go/types. Error messages were adjusted
accordingly, with a TODO to fix the discrepancy.
Change-Id: Ifd7d8248fa11a31fde391021f3c5f1840877892f
Reviewed-on: https://go-review.googlesource.com/c/go/+/360937
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a clean port of CL 360603 to go/types.
Change-Id: Iadb312f07e509ff83339d5525765b7b7987bf233
Reviewed-on: https://go-review.googlesource.com/c/go/+/360936
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a clean port of CL 360514 to go/types.
Change-Id: Ia13638b3758b3b8017867934d09136ac5f9a62ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/360935
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a port of both CL 360396 and CL 360796 to go/types. The latter
is added to avoid introducing an intermediate bug.
An error message was adjusted in issue49296.go2, with a TODO to switch
to the types2 error.
Change-Id: Iede294b69b4e097e53876498f039ee18667568c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/360934
Trust: Robert Findley <rfindley@google.com>
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Fixes#49287
Change-Id: I3f970d6db0b1dee886df2f7bb6cbeb56a37c42c2
Reviewed-on: https://go-review.googlesource.com/c/go/+/360860
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
types2 methods are now sorted in the same way as types1, so this TODO is
no longer needed. (Comment change only).
Change-Id: Ic975ce001a5d54f15381a9cb7b6969dff795e3b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/360856
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This is a clean port of CL 360274 to go/types.
Change-Id: Idfa584fab95f7226e10b1a7c5b06d56a0bf9d757
Reviewed-on: https://go-review.googlesource.com/c/go/+/360759
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a clean port of CL 359177 to go/types.
Change-Id: I6c1574e3a1c23ea326eb8d4aacea0e78415703ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/360758
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a clean port of CL 359015 to go/types.
Change-Id: Iea4e3bfe0a4ae0e5a9052cb6e66c01405bd57c3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/360756
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a clean port of CL 358621 to go/types.
Change-Id: I4e858b1b70cff69b6e0e76bb8a58a70ff54990c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/360755
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a clean port of CL 358774 to go/types.
Change-Id: Icba54336de2b8de7c2002d2a44cac856907178c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/360754
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
"so" didn't have an antecedent.
Change-Id: I27f7b334decea7bc34bfa3f3f2d3a79874c6fe90
Reviewed-on: https://go-review.googlesource.com/c/go/+/360797
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Previously, opening a zip with (*Reader).Open could result in a panic if
the zip contained a file whose name was exclusively made up of slash
characters or ".." path elements.
Open could also panic if passed the empty string directly as an argument.
Now, any files in the zip whose name could not be made valid for
fs.FS.Open will be skipped, and no longer added to the fs.FS file list,
although they are still accessible through (*Reader).File.
Note that it was already the case that a file could be accessible from
(*Reader).Open with a name different from the one in (*Reader).File, as
the former is the cleaned name, while the latter is the original one.
Finally, made the actual panic site robust as a defense-in-depth measure.
Fixes CVE-2021-41772
Fixes#48085
Co-authored-by: Filippo Valsorda <filippo@golang.org>
Change-Id: I6271a3f2892e7746f52e213b8eba9a1bba974678
Reviewed-on: https://go-review.googlesource.com/c/go/+/349770
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Trust: Katie Hockman <katie@golang.org>
Trust: Julie Qiu <julie@golang.org>
This is a port of CL 358597 to go/types. A comment was missing in the
base of applyTypeFunc, which had been there since the initial check-in
of types2; somehow it was not in go/types.
Change-Id: If08efd92d782dd3099b26254ae6e311c6cea8c3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/360477
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
