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https://github.com/golang/go
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1a22738749
Assume that an expression that is not a function call in a defer/go statement is indeed a function that is just missing its invocation. Report the error but continue with a sane syntax tree. Fixes #23586. Change-Id: Ib45ebac57c83b3e39ae4a1b137ffa291dec5b50d Reviewed-on: https://go-review.googlesource.com/94156 Reviewed-by: Matthew Dempsky <mdempsky@google.com>
25 lines
629 B
Go
25 lines
629 B
Go
// errorcheck
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// Copyright 2018 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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// Test that we type-check deferred/go functions even
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// if they are not called (a common error). Specifically,
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// we don't want to see errors such as import or variable
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// declared but not used.
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package p
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import (
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"fmt"
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"math"
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)
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func f() {
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var i int
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defer func() { fmt.Println() } // ERROR "must be function call"
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go func() { _ = math.Sin(0) } // ERROR "must be function call"
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go func() { _ = i} // ERROR "must be function call"
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}
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