| // +build ignore | |
| // This is a slice of the fmt package. | |
| package main | |
| type pp struct { | |
| field interface{} | |
| } | |
| func newPrinter() *pp { | |
| return new(pp) | |
| } | |
| func Fprintln(a ...interface{}) { | |
| p := newPrinter() | |
| p.doPrint(a, true, true) | |
| } | |
| func Println(a ...interface{}) { | |
| Fprintln(a...) | |
| } | |
| func (p *pp) doPrint(a []interface{}, addspace, addnewline bool) { | |
| print(a[0]) // @types S | string | |
| stringer := a[0].(interface { | |
| String() string | |
| }) | |
| stringer.String() | |
| print(stringer) // @types S | |
| } | |
| type S int | |
| func (S) String() string { return "" } | |
| func main() { | |
| Println("Hello, World!", S(0)) | |
| } | |
| // @calls (*main.pp).doPrint -> (main.S).String |