mirror of
https://github.com/golang/go
synced 2024-11-22 07:14:40 -07:00
b6f0632e93
Previously, whether declaring a type which copied the structure of a type it was referenced in via a pointer field would work depended on whether you declared it before or after the type it copied, e.g. type T2 T1; type T1 struct { F *T2 } would work, however type T1 struct { F *T2 }; type T2 T1 wouldn't.
Fixes #667.
R=rsc
CC=golang-dev
https://golang.org/cl/4313064
87 lines
1.2 KiB
Go
87 lines
1.2 KiB
Go
// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2011 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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type T1 struct {
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Next *T2
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}
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type T2 T1
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type T3 struct {
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Next *T4
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}
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type T4 T5
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type T5 T6
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type T6 T7
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type T7 T8
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type T8 T9
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type T9 T3
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type T10 struct {
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x struct {
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y ***struct {
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z *struct {
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Next *T11
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}
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}
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}
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}
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type T11 T10
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type T12 struct {
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F1 *T15
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F2 *T13
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F3 *T16
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}
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type T13 T14
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type T14 T15
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type T15 T16
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type T16 T17
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type T17 T12
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// issue 1672
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type T18 *[10]T19
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type T19 T18
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func main() {
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_ = &T1{&T2{}}
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_ = &T2{&T2{}}
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_ = &T3{&T4{}}
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_ = &T4{&T4{}}
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_ = &T5{&T4{}}
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_ = &T6{&T4{}}
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_ = &T7{&T4{}}
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_ = &T8{&T4{}}
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_ = &T9{&T4{}}
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_ = &T12{&T15{}, &T13{}, &T16{}}
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var (
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tn struct{ Next *T11 }
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tz struct{ z *struct{ Next *T11 } }
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tpz *struct{ z *struct{ Next *T11 } }
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tppz **struct{ z *struct{ Next *T11 } }
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tpppz ***struct{ z *struct{ Next *T11 } }
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ty struct {
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y ***struct{ z *struct{ Next *T11 } }
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}
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)
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tn.Next = &T11{}
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tz.z = &tn
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tpz = &tz
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tppz = &tpz
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tpppz = &tppz
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ty.y = tpppz
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_ = &T10{ty}
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t19s := &[10]T19{}
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_ = T18(t19s)
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}
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