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cmd/cgo: don't let inserted /*line*/ become a // comment

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Fixes #29383

Change-Id: I0fb2929863e153b96d32d851e25e536231e4ae65
Reviewed-on: https://go-review.googlesource.com/c/155638
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
This commit is contained in:
Ian Lance Taylor 2018-12-21 13:14:09 -08:00
parent e7c20b7917
commit 08477a38ab
2 changed files with 23 additions and 2 deletions
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6
src/cmd/cgo/gcc.go
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@ -1389,7 +1389,9 @@ func (p *Package) rewriteRef(f *File) {
// Record source-level edit for cgo output.
if !r.Done {
repl := gofmtPos(expr, old.Pos())
// Prepend a space in case the earlier code ends
// with '/', which would give us a "//" comment.
repl := " " + gofmtPos(expr, old.Pos())
end := fset.Position(old.End())
// Subtract 1 from the column if we are going to
// append a close parenthesis. That will set the
@ -1399,7 +1401,7 @@ func (p *Package) rewriteRef(f *File) {
sub = 1
}
if end.Column > sub {
repl = fmt.Sprintf("%s/*line :%d:%d*/", repl, end.Line, end.Column-sub)
repl = fmt.Sprintf("%s /*line :%d:%d*/", repl, end.Line, end.Column-sub)
}
if r.Name.Kind != "type" {
repl = "(" + repl + ")"