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go/test/fixedbugs/issue7760.go
Matthew Dempsky 7f40e5e6e5 cmd/gc: disallow pointer constants
Fixes #7760.

LGTM=iant
R=iant, remyoudompheng
CC=golang-codereviews
https://golang.org/cl/130720043
2014-08-15 11:33:31 -07:00

26 lines
832 B
Go

// errorcheck
// Copyright 2014 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 that pointers can't be used as constants.
package main
import "unsafe"
type myPointer unsafe.Pointer
const _ = unsafe.Pointer(uintptr(1)) // ERROR "is not (a )?constant"
const _ = myPointer(uintptr(1)) // ERROR "is not (a )?constant"
const _ = (*int)(unsafe.Pointer(uintptr(1))) // ERROR "is not (a )?constant"
const _ = (*int)(myPointer(uintptr(1))) // ERROR "is not (a )?constant"
const _ = uintptr(unsafe.Pointer(uintptr(1))) // ERROR "is not (a )?constant"
const _ = uintptr(myPointer(uintptr(1))) // ERROR "is not (a )?constant"
const _ = []byte("") // ERROR "is not (a )?constant"
const _ = []rune("") // ERROR "is not (a )?constant"