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// 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|cannot use"
_, _, _, _, _ = i, f, s, g, t
}
{
// change of type for i
i, f, s := f3()
j, i, t := f3() // ERROR "redeclared|cannot assign|incompatible|cannot use"
_, _, _, _, _ = 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
}
}