CL 294430 made packages in std and cmd modules use Go 1.17 gofmt format,
adding //go:build lines. This change applies the same formatting to some
more packages that 'go fmt' missed (e.g., syscall/js, runtime/msan), and
everything else that is easy and safe to modify in bulk.
Consider the top-level test directory, testdata, and vendor directories
out of scope, since there are many files that don't follow strict gofmt
formatting, often for intentional and legitimate reasons (testing gofmt
itself, invalid Go programs that shouldn't crash the compiler, etc.).
That makes it easy and safe to gofmt -w the .go files that are found
with gofmt -l with aforementioned directories filtered out:
$ gofmt -l . 2>/dev/null | \
grep -v '^test/' | \
grep -v '/testdata/' | \
grep -v '/vendor/' | wc -l
51
None of the 51 files are generated. After this change, the same command
prints 0.
For #41184.
Change-Id: Ia96ee2a0f998d6a167d4473bcad17ad09bc1d86e
Reviewed-on: https://go-review.googlesource.com/c/go/+/341009
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
On Linux ARMv6 and below runtime/internal/atomic.Cas calls into a kernel
cas helper at a fixed address. If a SIGPROF arrives while executing the
kernel helper, the sigprof lostAtomic logic will miss that we are
potentially in the spinlock critical section, which could cause
a deadlock when using atomics later in sigprof.
Fixes#47505
Change-Id: If8ba0d0fc47e45d4e6c68eca98fac4c6ed4e43c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/341889
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
This will let cmd/cgo and cmd/link use this package for argument parsing.
For golang/go#41400
Change-Id: I12ee21151bf3f00f3e8d427faaaab2453c823117
Reviewed-on: https://go-review.googlesource.com/c/go/+/334730
Trust: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/341934
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
'go mod graph', 'go mod vendor', 'go mod verify', and 'go mod why'
will no longer edit go.mod or go.sum.
'go mod graph', 'go mod verify', and 'go mod why' may still fetch
files and look up packages as if they were able to update
go.mod. They're useful for debugging and should still work when go.mod
is a little broken.
This is implemented in modload.setDefaultBuildMod based on command
name for now. Super gross. Sorry. This should be fixed with a larger
refactoring for #40775.
Fixesgolang/go#45551
Change-Id: If5f225937180d32e9a5dd252c78d988042bbdedf
Reviewed-on: https://go-review.googlesource.com/c/go/+/336151
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
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Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/341933
Reviewed-by: Bryan C. Mills <bcmills@google.com>
-testsum may be set to "tidy", "listm", or "listall". When set,
TestScript runs 'go mod tidy', 'go list -m -mod=mod all', or
'go list -mod=mod all' at the beginning of each test that has a go.mod
file in its root directory. If the test passes and go.mod or go.sum
was updated, TestScript will rewrite the test file with the initial
content of go.mod and go.sum (after the above command).
This is useful for writing tests that need a working go.sum and for
fixing tests that rely on -mod=mod.
For golang/go#41302
Change-Id: I63a5667621a5082ccedfc1bff33c3969c29e8b3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/336150
Run-TryBot: Jay Conrod <jayconrod@google.com>
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Reviewed-on: https://go-review.googlesource.com/c/go/+/341932
Reviewed-by: Bryan C. Mills <bcmills@google.com>
The current text is slightly inaccurate. Make it more correct.
Change-Id: Iebe0051b74649d13982d7eefe3697f9e69c9b75d
Reviewed-on: https://go-review.googlesource.com/c/go/+/340449
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Conflicts:
- src/go/types/check_test.go
CL 324730 on dev.typeparams changed the directory paths in TestCheck,
TestExamples, and TestFixedbugs and renamed checkFiles to testFiles;
whereas CL 337529 on master added a new test case just above them and
that used checkFiles.
Merge List:
+ 2021-08-12 46fd547d89 internal/goversion: update Version to 1.18
+ 2021-08-12 5805efc78e doc/go1.17: remove draft notice
+ 2021-08-12 39634e7dae CONTRIBUTORS: update for the Go 1.17 release
+ 2021-08-12 095bb790e1 os/exec: re-enable LookPathTest/16
+ 2021-08-11 dea23e9ca8 src/make.*: make --no-clean flag a no-op that prints a warning
+ 2021-08-11 d4c0ed26ac doc/go1.17: linker passes -I to extld as -Wl,--dynamic-linker
+ 2021-08-10 1f9c9d8530 doc: use "high address/low address" instead of "top/bottom"
+ 2021-08-09 f1dce319ff cmd/go: with -mod=vendor, don't panic if there are duplicate requirements
+ 2021-08-09 7aeaad5c86 runtime/cgo: when using msan explicitly unpoison cgoCallers
+ 2021-08-08 507cc341ec doc: add example for conversion from slice expressions to array ptr
+ 2021-08-07 891547e2d4 doc/go1.17: fix a typo introduced in CL 335135
+ 2021-08-06 8eaf4d16bc make.bash: do not overwrite GO_LDSO if already set
+ 2021-08-06 63b968f4f8 doc/go1.17: clarify Modules changes
+ 2021-08-06 70546f6404 runtime: allow arm64 SEH to be called if illegal instruction
+ 2021-08-05 fd45e267c2 runtime: warn that KeepAlive is not an unsafe.Pointer workaround
+ 2021-08-04 6e738868a7 net/http: speed up and deflake TestCancelRequestWhenSharingConnection
+ 2021-08-02 8a7ee4c51e io/fs: don't use absolute path in DirEntry.Name doc
+ 2021-07-31 b8ca6e59ed all: gofmt
+ 2021-07-30 b7a85e0003 net/http/httputil: close incoming ReverseProxy request body
+ 2021-07-29 70fd4e47d7 runtime: avoid possible preemption when returning from Go to C
+ 2021-07-28 9eee0ed439 cmd/go: fix go.mod file name printed in error messages for replacements
+ 2021-07-28 b39e0f461c runtime: don't crash on nil pointers in checkptrAlignment
+ 2021-07-27 7cd10c1149 cmd/go: use .mod instead of .zip to determine if version has go.mod file
+ 2021-07-27 c8cf0f74e4 cmd/go: add missing flag in UsageLine
+ 2021-07-27 7ba8e796c9 testing: clarify T.Name returns a distinct name of the running test
+ 2021-07-27 33ff155970 go/types: preserve untyped constants on the RHS of a shift expression
+ 2021-07-26 840e583ff3 runtime: correct variable name in comment
+ 2021-07-26 bfbb288574 runtime: remove adjustTimers counter
+ 2021-07-26 9c81fd53b3 cmd/vet: add missing copyright header
Change-Id: Ia80604d24c6f4205265683024e3100769cf32065
The type substituter (typecheck.Typ()) was temporarily substituting from
shapes back to concrete types, but doesn't need to anymore. So, remove
two shape checks, so the type substituter is now only for substituting
type params again.
Several other cleanups:
- renamed makeGenericName() to makeInstName1(), since that function is
a helper to MakeInstName() and MakeDictName() that definitely makes
instantiated names, not generic names.
- removed the logic in makeInstName1() that adds the ".inst." prefix
for concrete type args. We are only specifying concrete type args (as
opposed to shape args) when we are calling from MakeDictName, and
then we immediately strip of the .inst prefix anyway.
- Added a comment on types.Identical that a shape type is considered
identicall to another type if their underlying types are the same, or
they are both pointers.
Change-Id: I3e0206dbd403897797ae7bec3c527ae16b0b930a
Reviewed-on: https://go-review.googlesource.com/c/go/+/341729
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
This is the start of the Go 1.18 development cycle, so update the
Version value accordingly. It represents the Go 1.x version that
will soon open up for development (and eventually become released).
Updates #40705
Updates #47351
Change-Id: Icfb99e28529a3c9fb7394e114a34586f613dfcbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/341590
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
This failure was confirmed to be due to a bug in prerelease versions
of Windows, and has been fixed by now. Remove the skip for this test.
Fixes#44379.
Change-Id: Idfb92ffd6b9d416d4c78ef3800a5ffdda06c6562
Reviewed-on: https://go-review.googlesource.com/c/go/+/341455
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This has been a part of the node dumping since the very beginning, but
this makes diffing -W output pretty annoying. -d=dumpptrs already prints
these out if needed.
Change-Id: I9524a7f7b44ec780ae42a8a2a9588f11ab3950f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/340253
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
This flag is undocumented and is no longer useful. Users who want to
install additional toolchains without cleaning the installed packages
should just use `go install`.
This CL changes cmd/dist to print a warning that --no-clean is
deprecated and to advise users to use `go install std cmd` instead,
and then otherwise ignores it:
```
$ ./make.bash --no-clean
Building Go cmd/dist using $GOROOT_BOOTSTRAP. (devel +b7a85e0003 linux/amd64)
warning: --no-clean is deprecated and has no effect; use 'go install std cmd' instead
Building Go toolchain1 using $GOROOT_BOOTSTRAP.
```
Fixes#47204.
Change-Id: I275031832098401a49e491e324e8de3427973630
Reviewed-on: https://go-review.googlesource.com/c/go/+/341392
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
This is a temporary change. We will revert this back before the 1.18
release. We make this change now to simplify testing, since a lot of
tools will break on the new export version.
Updates #47654.
Change-Id: I0650fa753bb11229c71254d779dd61b5c1af9cdf
Reviewed-on: https://go-review.googlesource.com/c/go/+/341211
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
As we commit to always enabling register ABI on AMD64, remove the
fallback code.
Change-Id: I30556858ba4bac367495fa94f6a8682ecd771196
Reviewed-on: https://go-review.googlesource.com/c/go/+/341152
Trust: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
In Go 1.17 we added register ABI on AMD64 on Linux/macOS/Windows
as a GOEXPERIMENT, on by default. In Go 1.18, we commit to always
enabling register ABI on AMD64.
Now "go build" for AMD64 always have goexperiment.regabi* tags
set. However, at bootstrapping cmd/dist does not set the tags
when building go_bootstrap. For this to work, unfortunately, we
need to hard-code AMD64 to use register ABI in runtime code.
Change-Id: I0b31e678e186b9cdeeb8502cd9e38ed0d7e72d4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/341151
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Use TypeParam.Constraint instead.
Change-Id: Iebd77d304f2b7238baa231fb9869c964f66ea355
Reviewed-on: https://go-review.googlesource.com/c/go/+/340990
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Calling SetTArgs without substituting can leave the type in incoherent
state, so we should avoid exposing this API unless necessary. Since it
is currently not used by the importer(s), it is probably not necessary
to expose for 1.18, so remove it.
Change-Id: I06bd7b5bbfacd3c65e2e66a9d5980f20cd1c10c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/341290
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
The TypeSet API is very new and probably not necessary to expose outside
of go/types, at least for 1.18. Users can check whether a type is
contained within a type set via Implements, and can access the
representation of the type set via the embedded Unions.
Change-Id: Icc7355285785bee5aa7a8fe74052bcb0fedcd0a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/341289
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Added new export tags 'G' and 'U' to export parameterized
functions/methods and parameterized types respectively. This has the
advantage that the Go 1.18 format remains backward-compatible with the
Go 1.17 format if no type parameters are exported.
Change-Id: I9dba8faaa65609eb3f9c693bd0c79daee98bd865
Reviewed-on: https://go-review.googlesource.com/c/go/+/340989
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
RegabiG and regabiDefer have been always enabled and removed from
experiments. Update the comment.
Change-Id: Ieaf4b4f0a7e0e9d6733a18932ca457be4f150d08
Reviewed-on: https://go-review.googlesource.com/c/go/+/341150
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Update vendored golang.org/x/tools repo to pick up CL 339250 for
assembly function check for register ABI.
This is done with
cd GOROOT/cmd
go get golang.org/x/tools@master
go mod tidy
go mod vendor
Update cmd/vet tests as the error ouput changes in CL 301949.
The error message now includes full package-qualified name.
Change-Id: I52dc7223aee9e011214254488bacf02dc5b4c2ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/341149
Trust: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
Change-Id: I9bba21a64d7e9f42395b6fcdf8aa3ca01cf131dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/340912
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
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Reviewed-by: Dan Scales <danscales@google.com>
Add the respective check and add missing bodies to tests.
Use {} as body for functions that don't return a result.
Use { panic(0) } as body for functions that return a result.
For #47069.
Change-Id: Ia5d7525c9c036baf8a955d13bff448401e08235e
Reviewed-on: https://go-review.googlesource.com/c/go/+/340911
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Now that the pointer identity for a *Named type doesn't change
anymore when going from lazy instantiated to actually instantiated
(= expanded) state, expand() only needs to be called when we deal
with *Named types and only if we care about a *Named type's internals.
Remove the expand function and respective calls for all types and
replace with specific t.expand() method calls where t is a *Named.
Change-Id: If82299360d60108b00adc4013b29399aec90b940
Reviewed-on: https://go-review.googlesource.com/c/go/+/340749
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
The current document uses the "top" and "bottom" when talking
about the address within a frame, which may easily lead to
misunderstandings. This patch directly uses "high address"
and "low address" to make the expression clearer.
Change-Id: I7469330bbdc158672d7f0314fe6680ebdd9ab79a
Reviewed-on: https://go-review.googlesource.com/c/go/+/339369
Trust: fannie zhang <Fannie.Zhang@arm.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
types2.Constraint() returns the top-level constraint type, including any
unions or other interface elements. Because of that, we needed to
add/fix some code in the type substituter and generic type instantiater
in the importer to deal with unions and non-method members of an
interface. Also, NewUnion was not correctly setting the HasTParam flag.
I also added a better error message when a symbol is not found in
(*deadcodePass).decodeIfaceMethod().
Change-Id: Id3668dc596dce63690fa05a9e5e42295b5e2bbb5
Reviewed-on: https://go-review.googlesource.com/c/go/+/340670
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
In loadModFile with -mod=vendor, load the vendor list and use it to
initialize the module graph before calling updateRoots.
In updateLazyRoots with any mode other than "mod", return the original
*Requirements if no roots needed to be upgraded, even if there are
inconsistencies. This means 'go list -m -mod=readonly' and -mod=vendor
may succeed if there are duplicate requirements or requirements on
versions of the main module.
Fixes#47565
Change-Id: I4640dffc4a7359367cc910da0d29e3538bfd1ca4
Reviewed-on: https://go-review.googlesource.com/c/go/+/340252
Trust: Jay Conrod <jayconrod@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
In the cases where we do an early call to typecheckaste() in noder to
expose CONVIFACE nodes, we need a preceding call to transformArgs().
This is needed to allow typecheckaste() to run correctly, in the case of
f(g()), where g has multiple return values.
I also cleaned up the code a bit and commented the code in Call(), and
we do the call to typecheckaste() in several more cases.
In stencil.go:stencil(), I moved the transformCall earlier for the
OCALLMETH/ODOTMETH case, just as I did in my previous CL for
OCALL/OFUNCINST. By doing this, transformArgs no longer needs to deal
with the extra dictionary args. Therefore, I was able to simply
transformArgs() to look like typecheckargs() again, and make use of
RewriteMultiValue directly.
Updates #47514
Change-Id: I49eb82ac05707e50c2e2fb03e39458a70491d406
Reviewed-on: https://go-review.googlesource.com/c/go/+/340531
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Add a new dynamicType node, which is used as a case entry when
the type being switched to is generic.
Change-Id: Ice77c6f224b8fdd3ff574fdf4a8ea5f6c7ddbe75
Reviewed-on: https://go-review.googlesource.com/c/go/+/339429
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Simplify the implementation of interface conversions in the compiler.
Don't pass fields that aren't needed (the data word, usually) to the runtime.
For generics, we need to put a dynamic type in an interface. The new
dataWord function is exactly what we need (the type word will come
from a dictionary).
Change-Id: Iade5de5c174854b65ad248f35c7893c603f7be3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/340029
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
This avoids an incorrect msan uninitialized memory report when using
runtime.SetCgoTraceback when a signal occurs while the fifth argument
register is undefined. See the issue for more details.
Fixes#47543
Change-Id: I3d1b673e2c93471ccdae0171a99b88b5a6062840
Reviewed-on: https://go-review.googlesource.com/c/go/+/339902
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Austin Clements <austin@google.com>
types2 now determines type parameter indices lazily, so we don't need
them just as we are importing. We set them in types1 as we are importing
the type param list itself.
type param indices are not strongly needed in types1 - we only use them
in one place which could be rewritten. But I kept them in analogy to
types2 (TypeParam.Index).
Fixes#47451
Change-Id: I30631f95c45a259354eaf7ec5194f71e799eb358
Reviewed-on: https://go-review.googlesource.com/c/go/+/340532
Run-TryBot: Dan Scales <danscales@google.com>
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Trust: Dan Scales <danscales@google.com>
Change-Id: I704bdb411bda3d8a40906c12f182e268dca4718f
Reviewed-on: https://go-review.googlesource.com/c/go/+/340450
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Interface.Complete is not needed anymore. We can remove it in
types2 (and eventually make it an empty function in go/types,
where we must maintain the existing API).
Change-Id: I689f0d6f3a83997d8ca5bae773b9af0083d0bf4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/340255
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
At the moment, operations on termlists are O(n^2).
This is fine for normal-sized unions, but overlong
termlist lenghts will lead to excessive type checking
times.
Limit the length of termlists to avoid "compilations
that don't finish".
Change-Id: I39a7fc61b01c9db06faeb49a0e014b1ede532710
Reviewed-on: https://go-review.googlesource.com/c/go/+/340254
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
Export a term as a pair (tilde, type) rather than (type, tilde)
to match the new Union/Term API.
Change-Id: I221c09c2c746ae19fbae0c970ffb26fa7a8ac736
Reviewed-on: https://go-review.googlesource.com/c/go/+/340251
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Instead of providing a list of tildes and types, use a list of
Terms to create a Union, with suitable accessors.
Define the (exported) notion of a Term representing a union term.
This simplified various uses and also will be easier to extend
should we want to add more information to a Term in the future.
Change-Id: I52fd73938bfa11bac60adbf10580b6d0680df4f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/340250
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
Follow-up on https://golang.org/cl/339596 .
Change-Id: Ifa249379df083f80176b9f99900be0bf12483f41
Reviewed-on: https://go-review.googlesource.com/c/go/+/339905
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
End-users are not expected to deal with the details of panics,
so providing extra information such as an "internal error" prefix
is not helpful.
Matches the types2 changes made in https://golang.org/cl/339969 .
Change-Id: Icb34a9daab981a84f41f8ae7ae5dc1b85b2d2c81
Reviewed-on: https://go-review.googlesource.com/c/go/+/339904
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Change-Id: Iaa58b17ad65e93548bb3da8231e0cb6da0c48105
Reviewed-on: https://go-review.googlesource.com/c/go/+/339903
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
For make with a type parameter argument, the structural type of
the type parameter's constraint determines what make is making.
Change-Id: I3b48f8ce3236b7624e0638b5f5be208c5915c987
Reviewed-on: https://go-review.googlesource.com/c/go/+/339899
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
For range expressions of type parameter type, the structural type
of the type parameter's constraint determines the range operation.
While at it, rename implicitArrayDeref to arrayPtrDeref.
Change-Id: Ib631a8a14e717498e5264944f659309df1f68cc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/339897
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
- use the symbol 𝓤 (as in 𝓤niverse) instead of ⊤ to denote the set
of all types (for better readabilty, ⊤ is hard to distinguish from
T in some fonts)
- use isAll instead of isTop to test for the set of all types
- use allTermlist instead of topTermlist to denote the termlist
representing all types
Change-Id: Idcb0b3398782b38653338e65173c0dbb935e430a
Reviewed-on: https://go-review.googlesource.com/c/go/+/339891
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
Simple change - added some comments, but also removed some TODO comments
which are now done or no longer a question. Cleaned up the initial check
for generic methods.
The one remaining TODO that really needs to be done is generating
dictionary wrappers for any methods involving embedded fields. Given we
are not doing this, I think this would only affect if a struct with an
embedded field with methods was converted to an interface containing the
embedded method, and then the method was called via that interface.
Change-Id: I6a8a2885de33ad60b313c1899b659daef7550dfb
Reviewed-on: https://go-review.googlesource.com/c/go/+/340260
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Do the transformCall using the original types2-derived type of the call
(in particular, the types of the params as non-shapes). Currently, since
we were using the param types of the instantiation, we might add in
interface conversions to an interface with shapes in the one case of a
full-instantiated generic call. So, we do the transformCall() before
installing the shaped-based instantiation. transformCall() works
correctly even in the case of OCALL/FUNCINST.
Fixed two related bugs:
- Fixed case where we still were not correctly substituting the types
for a function instantiation.
- The type substituter needs to copy field flags while substituting in
tstruct.
Change-Id: I14e960737d6840a75846ede480e6650534ba3af3
Reviewed-on: https://go-review.googlesource.com/c/go/+/340259
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Closures inside generic functions were being added to the g.target.Decls
list during noding, just like other closures. We remove generic
functions/methods from g.target.Decls, so they don't get compiled
(they're only available for export and stenciling). Most closures inside
generic functions/methods were similarly being removed from
g.target.Decls, because they have a generic parameter. But we need to
ensure no closures in generic function/methods are left remaining in
g.target.Decls, since we don't want them transformed and compiled.
So, we set a flag in (*irgen) that records when we are noding a
top-level generic function/method, and don't add any closures to
g.target.Decls when the flag is true.
Updates #47514
Change-Id: Id66b4c41d307ffa8f54cab6ce3646ade81606862
Reviewed-on: https://go-review.googlesource.com/c/go/+/340258
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
DLLs built with recent Microsoft toolchains for ARM64 test for ARMv8.1
atomics by potentially calling an illegal instruction, and then trapping
the exception to disable use of them by way of a structured exception
handler. However, vectored exception handlers are always called before
structured exception handlers. When LoadLibrary-ing DLLs that do this
probing during initialization, our lastcontinuehandler winds up being
called, and then crashing, but actually it should give execution back to
the library to handle the exception and fix up the state. So special
case this for arm64 with illegal instructions, and hope that we're not
masking other things in external DLLs that might more fatally trigger an
illegal instruction exception.
Updates #47576.
Change-Id: I341ab99cd8d513ae999b75596749d49779072022
Reviewed-on: https://go-review.googlesource.com/c/go/+/340070
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
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TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Even experienced users occasionally mistake that runtime.KeepAlive can
be used as a workaround for following the unsafe.Pointer safety rules,
but it cannot. Add an explicit warning to this effect to dissuade
users from trying to use it as such.
Fixes#47562.
Change-Id: I842e33a3e1c080933c6b1bd1b6318448adbf495c
Reviewed-on: https://go-review.googlesource.com/c/go/+/340269
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
