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9e8ea567c8
Enables V2 unified IR bitstreams when GOEXPERIMENT aliastypeparams are enabled. Allows pkgbits.NewPkgEncoder to set the output version. Reenables support for writing V0 streams. Updates #68778 Updates #68526 Change-Id: I590c494d81ab7db148232ceaba52229068d1e986 Reviewed-on: https://go-review.googlesource.com/c/go/+/608595 Reviewed-by: David Chase <drchase@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
46 lines
885 B
Go
46 lines
885 B
Go
// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build goexperiment.aliastypeparams
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package main
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import (
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"fmt"
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"issue68526.dir/a"
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)
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func main() {
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unexported()
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exported()
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}
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func unexported() {
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var want struct{ F int }
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if any(want) != any(a.B{}) || any(want) != any(a.F()) {
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panic("zero value of alias and concrete type not identical")
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}
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}
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func exported() {
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var (
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astr a.A[string]
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aint a.A[int]
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)
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if any(astr) != any(struct{ F string }{}) || any(aint) != any(struct{ F int }{}) {
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panic("zero value of alias and concrete type not identical")
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}
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if any(astr) == any(aint) {
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panic("zero value of struct{ F string } and struct{ F int } are not distinct")
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}
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if got := fmt.Sprintf("%T", astr); got != "struct { F string }" {
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panic(got)
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}
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}
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