mirror of
https://github.com/golang/go
synced 2024-11-02 13:42:29 +00:00
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
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 that illegal uses of indirection are caught by the compiler.
|
|
// Does not compile.
|
|
|
|
package main
|
|
|
|
var m0 map[string]int
|
|
var m1 *map[string]int
|
|
var m2 *map[string]int = &m0
|
|
var m3 map[string]int = map[string]int{"a": 1}
|
|
var m4 *map[string]int = &m3
|
|
|
|
var s0 string
|
|
var s1 *string
|
|
var s2 *string = &s0
|
|
var s3 string = "a"
|
|
var s4 *string = &s3
|
|
|
|
var a0 [10]int
|
|
var a1 *[10]int
|
|
var a2 *[10]int = &a0
|
|
|
|
var b0 []int
|
|
var b1 *[]int
|
|
var b2 *[]int = &b0
|
|
var b3 []int = []int{1, 2, 3}
|
|
var b4 *[]int = &b3
|
|
|
|
func f() {
|
|
// this is spaced funny so that
|
|
// the compiler will print a different
|
|
// line number for each len call when
|
|
// it decides there are type errors.
|
|
x :=
|
|
len(m0)+
|
|
len(m1)+ // ERROR "illegal|invalid|must be"
|
|
len(m2)+ // ERROR "illegal|invalid|must be"
|
|
len(m3)+
|
|
len(m4)+ // ERROR "illegal|invalid|must be"
|
|
|
|
len(s0)+
|
|
len(s1)+ // ERROR "illegal|invalid|must be"
|
|
len(s2)+ // ERROR "illegal|invalid|must be"
|
|
len(s3)+
|
|
len(s4)+ // ERROR "illegal|invalid|must be"
|
|
|
|
len(a0)+
|
|
len(a1)+
|
|
len(a2)+
|
|
|
|
cap(a0)+
|
|
cap(a1)+
|
|
cap(a2)+
|
|
|
|
len(b0)+
|
|
len(b1)+ // ERROR "illegal|invalid|must be"
|
|
len(b2)+ // ERROR "illegal|invalid|must be"
|
|
len(b3)+
|
|
len(b4)+ // ERROR "illegal|invalid|must be"
|
|
|
|
cap(b0)+
|
|
cap(b1)+ // ERROR "illegal|invalid|must be"
|
|
cap(b2)+ // ERROR "illegal|invalid|must be"
|
|
cap(b3)+
|
|
cap(b4) // ERROR "illegal|invalid|must be"
|
|
_ = x
|
|
}
|