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https://github.com/golang/go
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e3f1c66f31
The generated code for interface stubs sometimes just messes with a few of the args and then tail-calls to the target routine. The args that aren't explicitly modified appear to not be used. But they are used, by the thing we're tail calling. Fixes #16016 Change-Id: Ib9b3a8311bb714a201daee002885fcb59e0463fa Reviewed-on: https://go-review.googlesource.com/23960 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
36 lines
565 B
Go
36 lines
565 B
Go
// run
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// Copyright 2016 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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package main
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import "time"
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type T struct{}
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func (*T) Foo(vals []interface{}) {
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switch v := vals[0].(type) {
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case string:
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_ = v
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}
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}
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type R struct{ *T }
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type Q interface {
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Foo([]interface{})
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}
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func main() {
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var q Q = &R{&T{}}
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for i := 0; i < 10000; i++ {
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go func() {
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defer q.Foo([]interface{}{"meow"})
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time.Sleep(100 * time.Millisecond)
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}()
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}
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time.Sleep(1 * time.Second)
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}
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