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https://github.com/golang/go
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39 lines
822 B
Go
39 lines
822 B
Go
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// errorcheck
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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Verify that comparisons of slice/map/func values against converted nil
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// values are properly rejected.
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package p
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func bug() {
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type S []byte
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type M map[int]int
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type F func()
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var s S
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var m M
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var f F
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_ = s == S(nil) // ERROR "compare.*to nil"
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_ = S(nil) == s // ERROR "compare.*to nil"
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switch s {
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case S(nil): // ERROR "compare.*to nil"
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}
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_ = m == M(nil) // ERROR "compare.*to nil"
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_ = M(nil) == m // ERROR "compare.*to nil"
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switch m {
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case M(nil): // ERROR "compare.*to nil"
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}
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_ = f == F(nil) // ERROR "compare.*to nil"
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_ = F(nil) == f // ERROR "compare.*to nil"
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switch f {
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case F(nil): // ERROR "compare.*to nil"
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}
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}
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