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allocate a 512 byte buffer if none exists during Iterator.Reset() #669

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3 changes: 3 additions & 0 deletions iter.go
Expand Up @@ -130,6 +130,9 @@ func (iter *Iterator) Pool() IteratorPool {
// Reset reuse iterator instance by specifying another reader
func (iter *Iterator) Reset(reader io.Reader) *Iterator {
iter.reader = reader
if iter.buf == nil {
iter.buf = make([]byte, 512)
}
iter.head = 0
iter.tail = 0
iter.depth = 0
Expand Down