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https://github.com/golang/go
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fc0dc04095
Very few of the compiler regression tests include a comment saying waht they do. Many are obvious, some are anything but. I've started with a-c in the top directory. More will follow once we agree on the approach, correctness, and thoroughness here. zerodivide.go sneaked in too. R=rsc, r CC=golang-dev https://golang.org/cl/5656100
57 lines
805 B
Go
57 lines
805 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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