mirror of
https://github.com/golang/go
synced 2024-11-12 07:50:23 -07:00
58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
// errchk $G -e $D/$F.go
|
|
|
|
// 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 basic operations on named types are valid
|
|
// and preserve the type.
|
|
|
|
package main
|
|
|
|
type Bool bool
|
|
|
|
type Map map[int]int
|
|
func (Map) M() {}
|
|
|
|
func asBool(Bool) {}
|
|
|
|
func main() {
|
|
var (
|
|
b Bool = true;
|
|
i, j int;
|
|
c = make(chan int);
|
|
m = make(Map);
|
|
)
|
|
|
|
asBool(b);
|
|
asBool(!b);
|
|
asBool(true);
|
|
asBool(*&b);
|
|
asBool(Bool(true));
|
|
asBool(1!=2); // ERROR "cannot use.*type bool.*as type Bool"
|
|
asBool(i < j); // ERROR "cannot use.*type bool.*as type Bool"
|
|
|
|
_, b = m[2]; // ERROR "cannot assign bool.*type Bool"
|
|
m[2] = 1, b; // ERROR "cannot use.*type Bool.*as type bool"
|
|
|
|
b = c<-1; // ERROR "cannot use.*type bool.*type Bool"
|
|
_ = b;
|
|
asBool(c<-1); // ERROR "cannot use.*type bool.*as type Bool"
|
|
|
|
_, b = <-c; // ERROR "cannot assign bool.*type Bool"
|
|
_ = b;
|
|
|
|
var inter interface{};
|
|
_, b = inter.(Map); // ERROR "cannot assign bool.*type Bool"
|
|
_ = b;
|
|
|
|
var minter interface{M()};
|
|
_, b = minter.(Map); // ERROR "cannot assign bool.*type Bool"
|
|
_ = b;
|
|
|
|
asBool(closed(c)); // ERROR "cannot use.*type bool.*as type Bool"
|
|
b = closed(c); // ERROR "cannot use.*type bool.*type Bool"
|
|
_ = b;
|
|
}
|
|
|