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Marking variables in erroneous variable declarations as used is convenient for tests but doesn't necessarily hide follow-on errors in real code: either the variable is not supposed to be declared in the first place and then we should get an error if it is not used, or it is there because it is intended to be used, and the we expect an error it if is not used. This brings types2 closer to go/types. Change-Id: If7ee1298fc770f7ad0cefe7e968533fd50ec2343 Reviewed-on: https://go-review.googlesource.com/c/go/+/486175 Run-TryBot: Robert Griesemer <gri@google.com> Reviewed-by: Robert Griesemer <gri@google.com> Auto-Submit: Robert Griesemer <gri@google.com> Reviewed-by: Robert Findley <rfindley@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
16 lines
734 B
Go
16 lines
734 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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package main
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func main() {
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var a, b = 1 // ERROR "assignment mismatch: 2 variables but 1 value|wrong number of initializations|cannot initialize"
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_ = 1, 2 // ERROR "assignment mismatch: 1 variable but 2 values|number of variables does not match|cannot assign"
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c, d := 1 // ERROR "assignment mismatch: 2 variables but 1 value|wrong number of initializations|cannot initialize"
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e, f := 1, 2, 3 // ERROR "assignment mismatch: 2 variables but 3 values|wrong number of initializations|cannot initialize"
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_, _, _, _, _, _ = a, b, c, d, e, f
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}
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