golang pointer 代码
文件路径：/test/interface/pointer.go
/ errorcheck
/ Copyright 2009 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.
/ Test that interface{M()} = *interface{M()} produces a compiler error.
/ Does not compile.
package main
type Inst interface {
Next() *Inst
}
type Regexp struct {
code []Inst
start Inst
}
type Start struct {
foo *Inst
}
func (start *Start) Next() *Inst { return nil }
func AddInst(Inst) *Inst {
print("ok in addinst\n")
return nil
}
func main() {
print("call addinst\n")
var x Inst = AddInst(new(Start)) / ERROR "pointer to interface|incompatible type"
print("return from addinst\n")
var y *Inst = new(Start) / ERROR "pointer to interface|incompatible type"
}