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![Evan Kroske](/assets/img/avatar_default.png)
Fixes #6764. Fixes #8435. LGTM=rsc R=golang-codereviews, r, gobot, rsc CC=golang-codereviews https://golang.org/cl/116440046
69 lines
975 B
Go
69 lines
975 B
Go
// errorcheck
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// Copyright 2009 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 simple assignment errors are caught by the compiler.
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// Does not compile.
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package main
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import "sync"
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type T struct {
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int
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sync.Mutex
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}
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func main() {
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{
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var x, y sync.Mutex
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x = y // ok
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_ = x
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}
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{
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var x, y T
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x = y // ok
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_ = x
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}
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{
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var x, y [2]sync.Mutex
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x = y // ok
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_ = x
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}
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{
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var x, y [2]T
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x = y // ok
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_ = x
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}
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{
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x := sync.Mutex{0, 0} // ERROR "assignment.*Mutex"
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_ = x
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}
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{
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x := sync.Mutex{key: 0} // ERROR "(unknown|assignment).*Mutex"
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_ = x
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}
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{
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x := &sync.Mutex{} // ok
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var y sync.Mutex // ok
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y = *x // ok
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*x = y // ok
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_ = x
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_ = y
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}
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{
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var x = 1
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{
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x, x := 2, 3 // ERROR "x repeated on left side of :="
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_ = x
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}
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_ = x
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}
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{
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a, a := 1, 2 // ERROR "a repeated on left side of :="
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_ = a
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}
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}
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