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cmd/compile: const name and label name may match

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Fixes #13684.

Change-Id: I3977119b6eb1d6b7dc2ea1e7d6656a8f0d421bc1
Reviewed-on: https://go-review.googlesource.com/18060
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
This commit is contained in:
Robert Griesemer 2015-12-18 14:21:41 -08:00
parent 97f854cd7b
commit d6a203ecab
2 changed files with 19 additions and 2 deletions
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4
src/cmd/compile/internal/gc/parser.go
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@ -667,9 +667,9 @@ func (p *parser) simple_stmt(labelOk, rangeOk bool) *Node {
// labelname ':' stmt
if labelOk {
// If we have a labelname, it was parsed by operand
// (calling p.name()) and given an ONAME, ONONAME, OTYPE, or OPACK node.
// (calling p.name()) and given an ONAME, ONONAME, OTYPE, OPACK, or OLITERAL node.
switch lhs.Op {
case ONAME, ONONAME, OTYPE, OPACK:
case ONAME, ONONAME, OTYPE, OPACK, OLITERAL:
lhs = newname(lhs.Sym)
default:
p.syntax_error("expecting semicolon or newline or }")