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4360fd8d6f
This matches longstanding compiler behavior. Also, for unused packages, report: `"pkg" imported and not used` `"pkg" imported as X and not used` This matches the other `X declared and not used` errors. For #55326. Change-Id: Ie71cf662fb5f4648449c64fc51bede298a1bdcbf Reviewed-on: https://go-review.googlesource.com/c/go/+/432557 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Robert Findley <rfindley@google.com> Reviewed-by: Robert Griesemer <gri@google.com> Auto-Submit: Robert Griesemer <gri@google.com> Run-TryBot: Robert Griesemer <gri@google.com>
21 lines
598 B
Go
21 lines
598 B
Go
// errorcheck
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// Copyright 2019 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 various erroneous type switches are caught by the compiler.
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// Does not compile.
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package main
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func notused(x interface{}) {
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// The first t is in a different scope than the 2nd t; it cannot
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// be accessed (=> declared and not used error); but it is legal
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// to declare it.
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switch t := 0; t := x.(type) { // ERROR "declared and not used"
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case int:
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_ = t // this is using the t of "t := x.(type)"
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}
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}
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