feat: add logs_bloom (#768)

* feat: add logs_bloom

* accrue_log

crates/primitives/src/lib.rs

@@ -42,7 +42,7 @@ mod common;
 pub use common::TxKind;
 
 mod log;
-pub use log::{IntoLogData, Log, LogData};
+pub use log::{logs_bloom, IntoLogData, Log, LogData};
 
 #[cfg(feature = "map")]
 pub mod map;

crates/primitives/src/log/mod.rs

@@ -1,9 +1,18 @@
-use crate::{Address, Bytes, B256};
+use crate::{Address, Bloom, Bytes, B256};
 use alloc::vec::Vec;
 
 #[cfg(feature = "serde")]
 mod serde;
 
+/// Compute the logs bloom filter for the given logs.
+pub fn logs_bloom<'a>(logs: impl IntoIterator<Item = &'a Log>) -> Bloom {
+    let mut bloom = Bloom::ZERO;
+    for log in logs {
+        bloom.accrue_log(log);
+    }
+    bloom
+}
+
 /// An Ethereum event log object.
 #[derive(Clone, Debug, Default, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(::serde::Serialize, ::serde::Deserialize))]