1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
// run
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
type Value struct {
X interface{}
Y int
}
type Struct struct {
X complex128
}
const magic = 1 + 2i
func (Value) Complex(x complex128) {
if x != magic {
println(x)
panic("bad complex magic")
}
}
func f(x *byte, y, z int) complex128 {
return magic
}
func (Value) Struct(x Struct) {
if x.X != magic {
println(x.X)
panic("bad struct magic")
}
}
func f1(x *byte, y, z int) Struct {
return Struct{magic}
}
func main() {
var v Value
v.Struct(f1(nil, 0, 0)) // ok
v.Complex(f(nil, 0, 0)) // used to fail
}
|
