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go/ast: fix walk to handle "for range x"

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LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/117790043
This commit is contained in:
Robert Griesemer 2014-07-14 19:14:27 -07:00
parent 79b106ec62
commit deae10e038
1 changed files with 3 additions and 1 deletions
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4
src/pkg/go/ast/walk.go
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@ -275,7 +275,9 @@ func Walk(v Visitor, node Node) {
Walk(v, n.Body)
case *RangeStmt:
Walk(v, n.Key)
if n.Key != nil {
Walk(v, n.Key)
}
if n.Value != nil {
Walk(v, n.Value)
}