mirror of
https://github.com/golang/go
synced 2024-11-23 22:00:11 -07:00
106 lines
1.9 KiB
Go
106 lines
1.9 KiB
Go
// Copyright 2010 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
|
|
|
|
import (
|
|
p0 "./bug0"
|
|
p1 "./bug1"
|
|
|
|
"reflect"
|
|
"strings"
|
|
)
|
|
|
|
var v0 p0.T
|
|
var v1 p1.T
|
|
|
|
type I0 interface {
|
|
M(p0.T)
|
|
}
|
|
|
|
type I1 interface {
|
|
M(p1.T)
|
|
}
|
|
|
|
type t0 int
|
|
|
|
func (t0) M(p0.T) {}
|
|
|
|
type t1 float64
|
|
|
|
func (t1) M(p1.T) {}
|
|
|
|
var i0 I0 = t0(0) // ok
|
|
var i1 I1 = t1(0) // ok
|
|
|
|
var p0i p0.I = t0(0) // ok
|
|
var p1i p1.I = t1(0) // ok
|
|
|
|
func main() {
|
|
// check that reflect paths are correct,
|
|
// meaning that reflect data for v0, v1 didn't get confused.
|
|
|
|
// path is full (rooted) path name. check suffix for gc, prefix for gccgo
|
|
if s := reflect.TypeOf(v0).PkgPath(); !strings.HasSuffix(s, "/bug0") && !strings.HasPrefix(s, "bug0") {
|
|
println("bad v0 path", len(s), s)
|
|
panic("fail")
|
|
}
|
|
if s := reflect.TypeOf(v1).PkgPath(); !strings.HasSuffix(s, "/bug1") && !strings.HasPrefix(s, "bug1") {
|
|
println("bad v1 path", s)
|
|
panic("fail")
|
|
}
|
|
|
|
// check that dynamic interface check doesn't get confused
|
|
var i interface{} = t0(0)
|
|
if _, ok := i.(I1); ok {
|
|
println("used t0 as i1")
|
|
panic("fail")
|
|
}
|
|
if _, ok := i.(p1.I); ok {
|
|
println("used t0 as p1.I")
|
|
panic("fail")
|
|
}
|
|
|
|
i = t1(1)
|
|
if _, ok := i.(I0); ok {
|
|
println("used t1 as i0")
|
|
panic("fail")
|
|
}
|
|
if _, ok := i.(p0.I); ok {
|
|
println("used t1 as p0.I")
|
|
panic("fail")
|
|
}
|
|
|
|
// check that type switch works.
|
|
// the worry is that if p0.T and p1.T have the same hash,
|
|
// the binary search will handle one of them incorrectly.
|
|
for j := 0; j < 3; j++ {
|
|
switch j {
|
|
case 0:
|
|
i = p0.T{}
|
|
case 1:
|
|
i = p1.T{}
|
|
case 2:
|
|
i = 3.14
|
|
}
|
|
switch i.(type) {
|
|
case p0.T:
|
|
if j != 0 {
|
|
println("type switch p0.T")
|
|
panic("fail")
|
|
}
|
|
case p1.T:
|
|
if j != 1 {
|
|
println("type switch p1.T")
|
|
panic("fail")
|
|
}
|
|
default:
|
|
if j != 2 {
|
|
println("type switch default", j)
|
|
panic("fail")
|
|
}
|
|
}
|
|
}
|
|
}
|