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c97ddf9c10
In increment and decrement statements, explicit check that the type
of operand is numeric earlier. This avoids a related but less clear
error about converting "1" to be emitted.
So, when compiling
package main
func main() {
var x bool
x++
}
instead of emitting two errors
prog.go:5: cannot convert 1 to type bool
prog.go:5: invalid operation: x++ (non-numeric type bool)
just emits the second error.
Fixes #12525.
Change-Id: I6e81330703765bef0d6eb6c57098c1336af7c799
Reviewed-on: https://go-review.googlesource.com/20245
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
27 lines
495 B
Go
27 lines
495 B
Go
// errorcheck
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// Copyright 2016 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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// Issue 12525: confusing error trying to increment boolean value
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package main
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func main() {
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var i int
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i++
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var f float64
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f++
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var c complex128
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c++
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var b bool
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b++ // ERROR "invalid operation: b\+\+ \(non-numeric type bool\)"
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var s string
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s-- // ERROR "invalid operation: s-- \(non-numeric type string\)"
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}
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