mirror of
https://github.com/golang/go
synced 2024-11-02 11:50:30 +00:00
9844e4cd7c
The test is not about type mismatches and it causes an extra error to appear. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/6614062
67 lines
1.4 KiB
Go
67 lines
1.4 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.
|
|
|
|
// Test that incorrect short declarations and redeclarations are detected.
|
|
// Does not compile.
|
|
|
|
package main
|
|
|
|
func f1() int { return 1 }
|
|
func f2() (float32, int) { return 1, 2 }
|
|
func f3() (float32, int, string) { return 1, 2, "3" }
|
|
|
|
func main() {
|
|
{
|
|
// simple redeclaration
|
|
i := f1()
|
|
i := f1() // ERROR "redeclared|no new"
|
|
_ = i
|
|
}
|
|
{
|
|
// change of type for f
|
|
i, f, s := f3()
|
|
f, g, t := f3() // ERROR "redeclared|cannot assign|incompatible"
|
|
_, _, _, _, _ = i, f, s, g, t
|
|
}
|
|
{
|
|
// change of type for i
|
|
i, f, s := f3()
|
|
j, i, t := f3() // ERROR "redeclared|cannot assign|incompatible"
|
|
_, _, _, _, _ = i, f, s, j, t
|
|
}
|
|
{
|
|
// no new variables
|
|
i, f, s := f3()
|
|
i, f := f2() // ERROR "redeclared|no new"
|
|
_, _, _ = i, f, s
|
|
}
|
|
{
|
|
// multiline no new variables
|
|
i := f1
|
|
i := func() int { // ERROR "redeclared|no new|incompatible"
|
|
return 0
|
|
}
|
|
_ = i
|
|
}
|
|
{
|
|
// single redeclaration
|
|
i, f, s := f3()
|
|
i := 1 // ERROR "redeclared|no new|incompatible"
|
|
_, _, _ = i, f, s
|
|
}
|
|
// double redeclaration
|
|
{
|
|
i, f, s := f3()
|
|
i, f := f2() // ERROR "redeclared|no new"
|
|
_, _, _ = i, f, s
|
|
}
|
|
{
|
|
// triple redeclaration
|
|
i, f, s := f3()
|
|
i, f, s := f3() // ERROR "redeclared|no new"
|
|
_, _, _ = i, f, s
|
|
}
|
|
}
|