use util::*; use basic_types::LogBloom; /// A single log's entry. #[derive(Debug,PartialEq,Eq)] pub struct LogEntry { /// TODO [Gav Wood] Please document me pub address: Address, /// TODO [Gav Wood] Please document me pub topics: Vec, /// TODO [Gav Wood] Please document me pub data: Bytes, } impl RlpStandard for LogEntry { fn rlp_append(&self, s: &mut RlpStream) { s.append_list(3); s.append(&self.address); s.append(&self.topics); s.append(&self.data); } } impl LogEntry { /// Create a new log entry. pub fn new(address: Address, topics: Vec, data: Bytes) -> LogEntry { LogEntry { address: address, topics: topics, data: data } } /// Returns reference to address. pub fn address(&self) -> &Address { &self.address } /// Returns reference to topics. pub fn topics(&self) -> &Vec { &self.topics } /// Returns reference to data. pub fn data(&self) -> &Bytes { &self.data } /// Calculates the bloom of this log entry. pub fn bloom(&self) -> LogBloom { self.topics.iter().fold(LogBloom::from_bloomed(&self.address.sha3()), |b, t| b.with_bloomed(&t.sha3())) } } impl FromJson for LogEntry { /// Convert given JSON object to a LogEntry. fn from_json(json: &Json) -> LogEntry { // TODO: check bloom. LogEntry { address: xjson!(&json["address"]), topics: xjson!(&json["topics"]), data: xjson!(&json["data"]), } } } #[cfg(test)] mod tests { use util::*; use super::LogEntry; #[test] fn test_empty_log_bloom() { let bloom = H2048::from_str("00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap(); let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap(); let log = LogEntry::new(address, vec![], vec![]); assert_eq!(log.bloom(), bloom); } }