mirror of
https://github.com/golang/go
synced 2024-11-11 20:20:23 -07:00
099b819085
Because the Align/Width of pointer types are always set when created, CalcSize() never descends past a pointer. Therefore, we need to do CheckSize() at every level when creating type. We need to do this for types creates by types2-to-types1 conversion and also by type substitution (mostly for stenciling). We also need to do Defer/ResumeCheckSize() at the top level in each of these cases to deal with potentially recursive types. These changes fix issue #47929 and also allow us to remove the special-case CheckSize() call that causes the problem for issue #47901. Fixes #47901 Fixes #47929 Change-Id: Icd8192431c145009cd6df2f4ade6db7da0f4dd3e Reviewed-on: https://go-review.googlesource.com/c/go/+/344829 Trust: Dan Scales <danscales@google.com> Reviewed-by: Keith Randall <khr@golang.org>
22 lines
386 B
Go
22 lines
386 B
Go
// run -gcflags=-G=3
|
|
|
|
// Copyright 2021 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package main
|
|
|
|
type Chan[T any] chan Chan[T]
|
|
|
|
func (ch Chan[T]) recv() Chan[T] {
|
|
return <-ch
|
|
}
|
|
|
|
func main() {
|
|
ch := Chan[int](make(chan Chan[int]))
|
|
go func() {
|
|
ch <- make(Chan[int])
|
|
}()
|
|
ch.recv()
|
|
}
|