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92c732e901
In certain cases, the declkared type of an OpIData is interface{}.
This was not expected (since interface{} is a pair, right?) and
thus caused a crash. What is intended is that these be treated as
a byteptr, so do that instead (this is what happens in 1.15).
Fixes #42568.
Change-Id: Id7c9e5dc2cbb5d7c71c6748832491ea62b0b339f
Reviewed-on: https://go-review.googlesource.com/c/go/+/270057
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
26 lines
415 B
Go
26 lines
415 B
Go
// compile
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// Copyright 2020 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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// Ensure that late expansion correctly handles an OpIData with type interface{}
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package p
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type S struct{}
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func (S) M() {}
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type I interface {
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M()
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}
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func f(i I) {
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o := i.(interface{})
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if _, ok := i.(*S); ok {
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o = nil
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}
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println(o)
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}
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