package main
-import "time"
+import (
+ "fmt"
+)
+
+type Foo int64
+
+func (f *Foo) F() int64 {
+ return int64(*f)
+}
+
+type Bar int64
+
+func (b Bar) F() int64 {
+ return int64(b)
+}
+
+type Baz int32
+
+func (b Baz) F() int64 {
+ return int64(b)
+}
func main() {
- now := time.Now()
- f := now.Unix
- if now.Unix() != f() {
- println("BUG: ", now.Unix(), "!=", f())
+ foo := Foo(123)
+ f := foo.F
+ if foo.F() != f() {
+ bug()
+ fmt.Println("foo.F", foo.F(), f())
+ }
+ bar := Bar(123)
+ f = bar.F
+ if bar.F() != f() {
+ bug()
+ fmt.Println("bar.F", bar.F(), f()) // duh!
+ }
+
+ baz := Baz(123)
+ f = baz.F
+ if baz.F() != f() {
+ bug()
+ fmt.Println("baz.F", baz.F(), f())
+ }
+}
+
+var bugged bool
+
+func bug() {
+ if !bugged {
+ bugged = true
+ fmt.Println("BUG")
}
}