64 lines
1.8 KiB
Rust
64 lines
1.8 KiB
Rust
//! Transaction log entry.
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use util::hash::*;
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use util::bytes::*;
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use util::sha3::*;
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/// Data sturcture used to represent Evm log entry.
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pub struct LogEntry {
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address: Address,
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topics: Vec<H256>,
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data: Bytes
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}
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impl LogEntry {
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/// This function should be called to create 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) -> &[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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/// Returns log bloom of given log entry.
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pub fn bloom(&self) -> H2048 {
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let mut bloom = H2048::new();
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bloom.shift_bloom(&self.address.sha3());
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for topic in self.topics.iter() {
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bloom.shift_bloom(&topic.sha3());
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}
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bloom
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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 std::str::FromStr;
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use util::hash::*;
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use util::bytes::*;
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use evm::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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