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https://github.com/golang/go
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41d2278eef
CALLPART of STRUCTLIT did not check for incomplete initialization of struct; modify PTRLIT treatment to force zeroing. Test for structlit, believe this might have also failed for arraylit. Fixes #18410. Change-Id: I511abf8ef850e300996d40568944665714efe1fc Reviewed-on: https://go-review.googlesource.com/34622 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
41 lines
686 B
Go
41 lines
686 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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// This checks partially initialized structure literals
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// used to create value.method functions have their
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// non-initialized fields properly zeroed/nil'd
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package main
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type X struct {
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A, B, C *int
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}
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//go:noinline
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func (t X) Print() {
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if t.B != nil {
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panic("t.B must be nil")
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}
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}
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//go:noinline
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func caller(f func()) {
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f()
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}
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//go:noinline
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func test() {
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var i, j int
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x := X{A: &i, C: &j}
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caller(func() { X{A: &i, C: &j}.Print() })
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caller(X{A: &i, C: &j}.Print)
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caller(x.Print)
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}
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func main() {
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test()
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}
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