feat(p2p): integrate txpool in p2p (#208)

crates/primitives/src/lib.rs

@@ -42,8 +42,8 @@ pub use log::Log;
 pub use receipt::Receipt;
 pub use storage::StorageEntry;
 pub use transaction::{
-    AccessList, AccessListItem, FromRecoveredTransaction, Signature, Transaction, TransactionKind,
-    TransactionSigned, TransactionSignedEcRecovered, TxType,
+    AccessList, AccessListItem, FromRecoveredTransaction, IntoRecoveredTransaction, Signature,
+    Transaction, TransactionKind, TransactionSigned, TransactionSignedEcRecovered, TxType,
 };
 
 /// A block hash.

crates/primitives/src/transaction/mod.rs

@@ -571,6 +571,8 @@ impl TransactionSigned {
     }
 
     /// Recover signer from signature and hash.
+    ///
+    /// Returns `None` if the transaction's signature is invalid.
     pub fn recover_signer(&self) -> Option<Address> {
         let signature_hash = self.signature_hash();
         self.signature.recover_signer(signature_hash)
@@ -724,6 +726,22 @@ impl FromRecoveredTransaction for TransactionSignedEcRecovered {
     }
 }
 
+/// The inverse of [`FromRecoveredTransaction`] that ensure the transaction can be sent over the
+/// network
+pub trait IntoRecoveredTransaction {
+    /// Converts to this type into a [`TransactionSignedEcRecovered`].
+    ///
+    /// Note: this takes `&self` since indented usage is via `Arc<Self>`.
+    fn to_recovered_transaction(&self) -> TransactionSignedEcRecovered;
+}
+
+impl IntoRecoveredTransaction for TransactionSignedEcRecovered {
+    #[inline]
+    fn to_recovered_transaction(&self) -> TransactionSignedEcRecovered {
+        self.clone()
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use crate::{