Change the internal constant enableInterfaceInference to a unifier
field that can be controlled dynamically and set it for Go 1.21
or later.
This restores Go 1.20 unification behavior for interfaces.
Fixes#61903.
Change-Id: Iefd6c0899811f8208a8be9cef2650a07787ae177
Reviewed-on: https://go-review.googlesource.com/c/go/+/519855
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Some file systems do not support file IDs. We should not use
FILE_ID_BOTH_DIR_INFO when reading directories on these file systems,
as it will fail. Instead, we should use FILE_ID_FULL_DIR_INFO,
which doesn't require file ID support.
Fixes#61907Fixes#61918
Change-Id: I83d0a898f8eb254dffe5b8fc68a4ca4ef21c0d85
Reviewed-on: https://go-review.googlesource.com/c/go/+/518195
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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).
Fixes#61879.
Change-Id: I20c0aa28ac86e2edec615b40f2269938e4a96938
Reviewed-on: https://go-review.googlesource.com/c/go/+/519435
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Auto-Submit: Robert Griesemer <gri@google.com>
Change-Id: I26be9a9faa27c6c03cf8b9dec5908d8617d61312
Reviewed-on: https://go-review.googlesource.com/c/go/+/518276
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Relocate the definitions in cmddefs.go (used by the compiler and
the cover tool) to a separate package "covcmd". No change
in functionality, this is a pure refactoring, in preparation
for a subsequent change that will require updating the
imports for the package.
Change-Id: Ic1d277c94d9a574de0a11ec5ed77e892302b9a47
Reviewed-on: https://go-review.googlesource.com/c/go/+/517696
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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>
Auto-Submit: Bryan Mills <bcmills@google.com>
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KDSA(Compute Digital Signature Authentication) instruction provides
support for the signing and verification of elliptic curves
Change-Id: I19996a307162dd4f476a1cfe4f8d1a74a609e6c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/503215
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This packages already contains other similar functions. Also add a test
for it.
Change-Id: Iafa8c14f5cb1f5ef89a0e16ccc855c568a3b5727
Reviewed-on: https://go-review.googlesource.com/c/go/+/518317
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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>
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MkdirAll fails to create directories under root paths using volume
names (e.g. //?/Volume{GUID}/foo). This is because fixRootDirectory
only handle extended length paths using drive letters (e.g. //?/C:/foo).
This CL fixes that issue by also detecting volume names without path
separator.
Updates #22230Fixes#39785
Change-Id: I813fdc0b968ce71a4297f69245b935558e6cd789
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PrintMarker was printing 50 NUL bytes before the marker.
Also, the examples for writing your own ShouldEnable helper suggest
"if m == nil { return false }", but this is inconsistent with how
Matcher.ShouldEnable handles nil pointers.
Change-Id: Ie45075ba7fb8fcc63eadce9d793a06ef0c8aa9f6
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It is only used on Darwin. This fixes "go vet" on ios.
Fixes#61667
Change-Id: Iaf00fcee5d89eb8e454f75bb1c0ea62c3950b684
Reviewed-on: https://go-review.googlesource.com/c/go/+/514495
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CL 515656 updated go/types to use file base as key in the posVers map,
but introduced a panic when the corresponding *token.File is nil.
Check that pos is valid before performing the lookup.
Fixes#61822
Change-Id: I1ac9d48c831a470de8439a50022ba5f59b3e0bed
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TestNetworkSymbolicLink needs to enable the Workstation service, otherwise it will fail.
This CL avoids failure by skipping testing when the Workstation service is not enabled.
Fixes#61467
Change-Id: I395952fc18329e0b0dfdec55c8a18f4007ea91de
Change-Id: I395952fc18329e0b0dfdec55c8a18f4007ea91de
GitHub-Last-Rev: 7f089d1dff
GitHub-Pull-Request: golang/go#61564
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sysctl kern.arandom has been supported since NetBSD 4.0, works inside a
chroot, has no confusing bells and whistles like Linux getrandom,
requires no complicated querying to avoid SIGSYS traps, and is what
NetBSD 10 will usee for the getentropy(3) library routine soon to
appear in POSIX.
Change-Id: I23bd84ecd5ff3e33e8958c60896db842c44667ba
GitHub-Last-Rev: 5db094c85a
GitHub-Pull-Request: golang/go#61441
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Change-Id: I7d960ebeac38262c8ee39deeed9e1a2ea2803f5f
GitHub-Last-Rev: 59c5d7ea76
GitHub-Pull-Request: golang/go#61755
Reviewed-on: https://go-review.googlesource.com/c/go/+/515800
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The recent version of darwin linker ld64 emits an warning about
deprecation of the -no_pie flag. Further, the new darwin linker
ld-prime ignores -no_pie flag and generates a PIE binary anyway.
Switch to building PIE binaries by default.
Updates #54482.
Updates #61229.
Change-Id: I81294dcd07a368a20e1349d56556ee2fdcb8df44
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Add "NewInliner" to the list of Go experiments, used for enabling an
updated/improved version of the function inlining phase within the Go
compiler.
Updates #61502.
Change-Id: I3218b3ae59a2d05156e8017cd9ee1d7b66cad031
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Change-Id: I7f4ac72fe3230d8b7486fab0c925015cefcbe355
GitHub-Last-Rev: 54455839b6
GitHub-Pull-Request: golang/go#61544
Reviewed-on: https://go-review.googlesource.com/c/go/+/512376
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Also use a unique share name for each run of the test.
This may help with #61467, but since I couldn't reproduce the failure
in the first place I don't know. It passes locally for me.
For #61467.
Change-Id: Ie51e3cf381063e02e4849af5c1a1ed7441ce21c0
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This CL partially reverts CL 297034. Inheritable handles are not
inherited by all workers thanks to using AdditionalInheritedHandles,
which explicitly specifies which handles to inherit by each worker.
This CL doesn't fix any bug, it's more of a cleanup, but also makes
the code more robust and more similar to its Unix counterpart.
Change-Id: I24c2d7f69dfb839a1aeb5858088d8f38b022f702
Reviewed-on: https://go-review.googlesource.com/c/go/+/506535
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Use generic implementation of IndexByte/IndexByteString
on plan9/amd64 since the assembly implementation
uses SSE instructions which are classified as floating
point instructions and cannot be used in a note handler.
A similar issue was fixed in CL 100577.
This fixes runtime.TestBreakpoint.
Fixes#61087.
Change-Id: Id0c085e47da449be405ea04ab9b93518c4e2fde8
Reviewed-on: https://go-review.googlesource.com/c/go/+/508400
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Change-Id: I5f06a4ef1d827eb0fe32a8d98444142108b0d573
Reviewed-on: https://go-review.googlesource.com/c/go/+/508996
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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
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The required gc bootstrap compiler, 1.17, has an internal/lazyregexp
package. It permits that package to be imported by internal/profile
while bootstrapping. The gccgo compiler also has an internal/lazyregexp
package, but it does not permit the gc compiler to import it.
Permit bootstrapping with gccgo by adding internal/lazyregexp to the
list of bootstrap directories.
The gccgo compiler recognizes the magic functions internal/abi.FuncPCABI0
and FuncPCABIInternal, but only in the internal/abi package, not
in the bootstrapping internal/abi package.
Permit bootstrapping with gccgo by adding definitions of those functions
with build tags so that they are only used by gccgo.
Fixes#60913
Change-Id: I3a78848d545db13314409d170d63f4cc737ca12e
Reviewed-on: https://go-review.googlesource.com/c/go/+/505036
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When unification of two types succeeds and at least one of them
is an interface, we must be more cautious about when to accept
the unification, to avoid order dependencies and unexpected
inference results.
The changes are localized and only affect matching against
interfaces; they further restrict what are valid unifications
(rather than allowing more code to pass). We may be able to
remove some of the restriotions in a future release.
See comments in code for a detailed description of the changes.
Also, factored out "asInterface" functionality into a function
to avoid needless repetition in the code.
Fixes#60933.
Fixes#60946.
Change-Id: I923f7a7c1a22e0f4fd29e441e016e7154429fc5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/505396
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Also switch internal/platform to commit the generated code instead of
regenerating it in cmd/dist. Nothing in the generated code depends on
the target configuration, and committing the source file makes it
more amenable to searching and indexing (particularly on
https://cs.opensource.google/go/go).
For #60939.
Change-Id: I9133dfd5129b3c4d7457267589dfac5e7ecbef65
Reviewed-on: https://go-review.googlesource.com/c/go/+/505175
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This is intended for the specific case of 'fmahash=qn' where someone
wants to disable fma without all the hash-search-handshake output.
There are cases where arm64, ppc64, and s390x users might want to do
this.
Change-Id: Iaf46c68a00d7c9f7f82fd98a4548b72610f84bed
Reviewed-on: https://go-review.googlesource.com/c/go/+/503776
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
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Change-Id: I869ebcd9a134d0010e419dc51b6f91eddeaa0bbd
GitHub-Last-Rev: 0fc44edaea
GitHub-Pull-Request: golang/go#60764
Reviewed-on: https://go-review.googlesource.com/c/go/+/502835
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To infer type arguments in an assignment of the form
var target func(t1, t2, ...) = g
where g is a generic function
func g[P1, P2, ...](p1, p2, ...)
the type checker used the synthetic function call
g(t1, t2, ...)
But because each argument (of type) t1, t2, ... is assigned to its
corresponding parameter p1, p2, ..., type inference uses assignment
rules ("inexact match") for unification.
As a result, types such as mystring and string match even though
they should not (they are not identical), yet function parameter
types must be identical to match.
This CL fixes this by constructing the synthetic call
g'(func(t1, t2, ...))
where g' is the generic function
func g'[P1, P2, ...](func(p1, p2, ...))
This mimics the function assignment directly by representing it as
a single argument passing (of a function-typed argument). Function
parameter types must now be identical to unify.
As an added benefit, the implementation is simpler.
As a consequence, when such an assignment is invalid because the
function types cannot possibly match, we now correctly get an
inference error. Without this change, in some cases unification
would succeed, only to lead to an assignment error afterwards.
While at it, update the date in the copyright notice of
testdata/manual.go so we don't need to fix it each time we copy
code from a test case in manual.go into a issueXXXXX.go file.
Fixes#60688.
Change-Id: I716247f426ef33d76c7849b0c33c59124e55b859
Reviewed-on: https://go-review.googlesource.com/c/go/+/501938
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Change-Id: I915eff34fcfe82f3514254f7d8998baa88a91da6
Reviewed-on: https://go-review.googlesource.com/c/go/+/501997
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For #45964
For #59359
Change-Id: I9f8f4c17ccd9711f81d152953a5e6aea50c6a28f
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This reverts CL 422375.
Reason for revert: We still need the fallback path on Solaris.
For #45964
For #59359
Change-Id: Ie598b9ef180708fb157080015aee44f67f6737c4
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If we don't have exact unification, we must consider interface
unification whether one of the types is a defined (named) interface
or not. Otherwise, if one of them is named, and the other one isn't,
the code selects interface-vs-non-interface unification and possibly
uses the wrong method set as the "required" method set, leading to
(incorrect) unification failure as was the case in #60564.
We can also not simply rely on getting this right in the subsequent
switch, through the handling of *Named types.
This CL fixes this simple logic error. If there's inexact unification,
now all (non-type parameter) interface cases are handled in one place,
before the switch. After handling interfaces, we are guaranteed that
we have either no interfaces, or we have exact unification where both
types must be of the same structure.
As a consequence, we don't need special handling for named interfaces
in the *Named case of the switch anymore.
Also, move the (unbound) type parameter swap from before interface
handling to after interface handling, just before the switch which
is the code that relies on a type parameter being in x, if any.
Fixes#60564.
Change-Id: Ibf7328bece25808b8dbdb714867048b93689f219
Reviewed-on: https://go-review.googlesource.com/c/go/+/500195
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Do not return prematurely in assignableTo.
Fixes#54424.
Change-Id: I769b3b4ad9d79b7bce60b92cc59c3564117e36db
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Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Interface inference must only be used if we don't require exact
unification, otherwise we may infer types (that are reasonable)
but then fail with an assignment error.
Only checking if exact is set for defined (named) types is not
sufficient, we must also check outside. Oversight.
Fixes#60562.
Change-Id: I208a74bf7ed80bcb976ba9cc172715c83f9e3d0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/499996
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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