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cmd/compile: fix printing of array types in error messages

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Fixes #23094.

Change-Id: I9aa36046488baa5f55cf2099e10cfb39ecd17b06
Reviewed-on: https://go-review.googlesource.com/116256
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Robert Griesemer 2018-06-04 17:17:16 -07:00
parent 75c1aed345
commit 4a2bec9726
2 changed files with 12 additions and 1 deletions
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2
src/cmd/compile/internal/gc/fmt.go
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@ -1268,7 +1268,7 @@ func (n *Node) exprfmt(s fmt.State, prec int, mode fmtMode) {
case OTARRAY:
if n.Left != nil {
mode.Fprintf(s, "[]%v", n.Left)
mode.Fprintf(s, "[%v]%v", n.Left, n.Right)
return
}
mode.Fprintf(s, "[]%v", n.Right) // happens before typecheck

11
test/fixedbugs/issue23094.go Normal file
View file

@ -0,0 +1,11 @@
// errorcheck
// Copyright 2018 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.
// Verify that the array is reported in correct notation.
package p
var a [len(a)]int // ERROR "\[len\(a\)\]int"