go/test/fixedbugs/issue20812.go
Kashav Madan d05a1238d6 cmd/compile: avoid duplicate cast error
If an error was already printed during LHS conversion step, we don't reprint
the "cannot convert" error.

In particular, this prevents `_ = int("1")` (and all similar casts) from
resulting in multiple identical error messages being printed.

Fixes #20812.

Change-Id: If6e52c59eab438599d641ecf6f110ebafca740a9
Reviewed-on: https://go-review.googlesource.com/46912
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-08-22 13:44:35 +00:00

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424 B
Go

// errorcheck
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package p
func f() {
_ = int("1") // ERROR "cannot convert"
_ = bool(0) // ERROR "cannot convert"
_ = bool("false") // ERROR "cannot convert"
_ = int(false) // ERROR "cannot convert"
_ = string(true) // ERROR "cannot convert"
}