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29 lines
745 B
Go
29 lines
745 B
Go
// Copyright 2009 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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// $G $D/$F.go || echo BUG: compilation should succeed
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package main
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type T // BUG forward declaration should be accepted
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type S struct {
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p *T
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}
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type T struct {
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p *S
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}
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func main() {
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var s S;
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}
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/*
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Per discussion w/ Ken, some time ago, we came to the conclusion that explicit
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forward declarations (as on line 5 in this program) are preferrable over
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implicit forward declarations because they make it explicit in which scope a
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type is to be declared fully, eventually. As an aside, the machinery for it is
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almost free in the compiler (one extra 'if' as far as I can tell).
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*/
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