80 lines
2.2 KiB
Rust
80 lines
2.2 KiB
Rust
use util::*;
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use basic_types::LogBloom;
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/// A single log's entry.
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#[derive(Debug,PartialEq,Eq)]
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pub struct LogEntry {
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/// TODO [Gav Wood] Please document me
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pub address: Address,
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/// TODO [Gav Wood] Please document me
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pub topics: Vec<H256>,
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/// TODO [Gav Wood] Please document me
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pub data: Bytes,
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}
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impl RlpStandard for LogEntry {
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fn rlp_append(&self, s: &mut RlpStream) {
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s.append_list(3);
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s.append(&self.address);
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s.append(&self.topics);
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s.append(&self.data);
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}
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}
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impl LogEntry {
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/// Create a new log entry.
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pub fn new(address: Address, topics: Vec<H256>, data: Bytes) -> LogEntry {
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LogEntry {
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address: address,
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topics: topics,
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data: data
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}
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}
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/// Returns reference to address.
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pub fn address(&self) -> &Address {
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&self.address
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}
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/// Returns reference to topics.
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pub fn topics(&self) -> &Vec<H256> {
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&self.topics
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}
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/// Returns reference to data.
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pub fn data(&self) -> &Bytes {
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&self.data
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}
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/// Calculates the bloom of this log entry.
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pub fn bloom(&self) -> LogBloom {
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self.topics.iter().fold(LogBloom::from_bloomed(&self.address.sha3()), |b, t| b.with_bloomed(&t.sha3()))
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}
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}
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impl FromJson for LogEntry {
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/// Convert given JSON object to a LogEntry.
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fn from_json(json: &Json) -> LogEntry {
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// TODO: check bloom.
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LogEntry {
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address: xjson!(&json["address"]),
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topics: xjson!(&json["topics"]),
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data: xjson!(&json["data"]),
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use util::*;
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use super::LogEntry;
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#[test]
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fn test_empty_log_bloom() {
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let bloom = H2048::from_str("00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
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let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
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let log = LogEntry::new(address, vec![], vec![]);
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assert_eq!(log.bloom(), bloom);
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}
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}
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