mirror of
https://github.com/golang/go
synced 2024-11-24 04:40:24 -07:00
fc0dc04095
Very few of the compiler regression tests include a comment saying waht they do. Many are obvious, some are anything but. I've started with a-c in the top directory. More will follow once we agree on the approach, correctness, and thoroughness here. zerodivide.go sneaked in too. R=rsc, r CC=golang-dev https://golang.org/cl/5656100
57 lines
805 B
Go
57 lines
805 B
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.
|
|
|
|
// Verify simple assignment errors are caught by the compiler.
|
|
// Does not compile.
|
|
|
|
package main
|
|
|
|
import "sync"
|
|
|
|
type T struct {
|
|
int
|
|
sync.Mutex
|
|
}
|
|
|
|
func main() {
|
|
{
|
|
var x, y sync.Mutex
|
|
x = y // ok
|
|
_ = x
|
|
}
|
|
{
|
|
var x, y T
|
|
x = y // ok
|
|
_ = x
|
|
}
|
|
{
|
|
var x, y [2]sync.Mutex
|
|
x = y // ok
|
|
_ = x
|
|
}
|
|
{
|
|
var x, y [2]T
|
|
x = y // ok
|
|
_ = x
|
|
}
|
|
{
|
|
x := sync.Mutex{0, 0} // ERROR "assignment.*Mutex"
|
|
_ = x
|
|
}
|
|
{
|
|
x := sync.Mutex{key: 0} // ERROR "(unknown|assignment).*Mutex"
|
|
_ = x
|
|
}
|
|
{
|
|
x := &sync.Mutex{} // ok
|
|
var y sync.Mutex // ok
|
|
y = *x // ok
|
|
*x = y // ok
|
|
_ = x
|
|
_ = y
|
|
}
|
|
}
|