func (qs *QuadStore) createKeyFor(d [4]quad.Direction, q quad.Quad) []byte {
key := make([]byte, quad.HashSize*4)
quad.HashTo(q.Get(d[0]), key[quad.HashSize*0:quad.HashSize*1])
quad.HashTo(q.Get(d[1]), key[quad.HashSize*1:quad.HashSize*2])
quad.HashTo(q.Get(d[2]), key[quad.HashSize*2:quad.HashSize*3])
quad.HashTo(q.Get(d[3]), key[quad.HashSize*3:quad.HashSize*4])
return key
}
func createKeyFor(d [4]quad.Direction, q quad.Quad) []byte {
key := make([]byte, 2+(quad.HashSize*4))
key[0] = d[0].Prefix()
key[1] = d[1].Prefix()
quad.HashTo(q.Get(d[0]), key[2+quad.HashSize*0:2+quad.HashSize*1])
quad.HashTo(q.Get(d[1]), key[2+quad.HashSize*1:2+quad.HashSize*2])
quad.HashTo(q.Get(d[2]), key[2+quad.HashSize*2:2+quad.HashSize*3])
quad.HashTo(q.Get(d[3]), key[2+quad.HashSize*3:2+quad.HashSize*4])
return key
}
func hashOf(s quad.Value) (out NodeHash) {
if s == nil {
return
}
quad.HashTo(s, out[:])
return
}
func createValueKeyFor(s quad.Value) []byte {
key := make([]byte, 1+quad.HashSize)
key[0] = 'z'
quad.HashTo(s, key[1:])
return key
}