Closed
Description
What version of Go are you using (go version)?
$ go version go version go1.19 darwin/arm64
Does this issue reproduce with the latest release?
yes
What operating system and processor architecture are you using (go env)?
go env Output
$ go env GO111MODULE="" GOARCH="arm64" GOBIN="" GOCACHE="/Users/reus/Library/Caches/go-build" GOENV="/Users/reus/Library/Application Support/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="arm64" GOHOSTOS="darwin" GOINSECURE="" GOMODCACHE="/Users/reus/pkg/mod" GONOPROXY="github.com/reusee/*" GONOSUMDB="github.com/reusee/*" GOOS="darwin" GOPATH="/Users/reus" GOPRIVATE="github.com/reusee/*" GOPROXY="https://goproxy.cn,direct" GOROOT="/opt/local/lib/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/opt/local/lib/go/pkg/tool/darwin_arm64" GOVCS="" GOVERSION="go1.19" GCCGO="gccgo" AR="ar" CC="/usr/bin/clang" CXX="clang++" CGO_ENABLED="1" GOMOD="/Users/reus/matrixorigin/matrixone/ice/go.mod" GOWORK="" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/4r/qbq6ljvd4y3c89_zw3yr24v40000gn/T/go-build2375435396=/tmp/go-build -gno-record-gcc-switches -fno-common" GOROOT/bin/go version: go version go1.19 darwin/arm64 GOROOT/bin/go tool compile -V: compile version go1.19 uname -v: Darwin Kernel Version 21.6.0: Sat Jun 18 17:07:22 PDT 2022; root:xnu-8020.140.41~1/RELEASE_ARM64_T6000 ProductName: macOS ProductVersion: 12.5 BuildVersion: 21G72 lldb --version: lldb-1316.0.9.46 Apple Swift version 5.6.1 (swiftlang-5.6.0.323.66 clang-1316.0.20.12)
What did you do?
package foo
type B[T any] struct {
}
type A interface {
a(A)
}
func (e *B[T]) a(o A) {
_ = o.(*B[T])
}
type C[T any] struct {
_ *B[T]
}
func D() {
var _ *C[int]
}
What did you expect to see?
compile OK
What did you see instead?
:1: internal compiler error: panic: runtime error: invalid memory address or nil pointer dereference