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zclwrite: Don't crash if EachToken called on a nil TokenSeq.

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This commit is contained in:
Martin Atkins 2017-06-07 07:39:01 -07:00
parent 69a87c73b4
commit ed2a739cdb
1 changed files with 3 additions and 0 deletions
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3
zclwrite/tokens.go
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@ -51,6 +51,9 @@ func (ts Tokens) EachToken(cb TokenCallback) {
} }
func (ts *TokenSeq) EachToken(cb TokenCallback) { func (ts *TokenSeq) EachToken(cb TokenCallback) {
if ts == nil {
return
}
for _, gen := range *ts { for _, gen := range *ts {
gen.EachToken(cb) gen.EachToken(cb)
} }