mirror of
https://github.com/golang/go
synced 2024-11-15 03:20:31 -07:00
d9270ecb3a
CL 35562 substituted zerobase for the pointer for interfaces containing zero-sized values. However, it failed to evaluate the zero-sized value expression for side-effects. Fix that. The other similar interface value optimizations are not affected, because they all actually use the value one way or another. Fixes #19246 Change-Id: I1168a99561477c63c29751d5cd04cf81b5ea509d Reviewed-on: https://go-review.googlesource.com/37395 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
29 lines
499 B
Go
29 lines
499 B
Go
// run
|
|
|
|
// Copyright 2017 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.
|
|
|
|
// Issue 19246: Failed to evaluate some zero-sized values
|
|
// when converting them to interfaces.
|
|
|
|
package main
|
|
|
|
import "os"
|
|
|
|
type B struct{}
|
|
|
|
//go:noinline
|
|
func f(i interface{}) {}
|
|
|
|
func main() {
|
|
defer func() {
|
|
if recover() == nil {
|
|
println("expected nil pointer dereference panic")
|
|
os.Exit(1)
|
|
}
|
|
}()
|
|
var b *B
|
|
f(*b)
|
|
}
|