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https://github.com/golang/go
synced 2024-11-24 21:30:10 -07:00
f6a952599e
Small change to cmd/gc to catch a "fallthrough" in the final case of a switch. R=golang-dev, rsc, mtj CC=golang-dev https://golang.org/cl/7841043
37 lines
526 B
Go
37 lines
526 B
Go
// errorcheck
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// Copyright 2011 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 erroneous switch statements are detected by the compiler.
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// Does not compile.
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package main
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type I interface {
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M()
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}
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func bad() {
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i5 := 5
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switch i5 {
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case 5:
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fallthrough // ERROR "cannot fallthrough final case in switch"
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}
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}
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func good() {
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var i interface{}
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var s string
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switch i {
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case s:
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}
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switch s {
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case i:
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}
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}
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