feat: add utility trait methods to Transaction (#12704)

crates/primitives-traits/src/transaction/mod.rs

@@ -7,6 +7,11 @@ pub mod tx_type;
 use crate::{InMemorySize, MaybeArbitrary, MaybeCompact, MaybeSerde};
 use core::{fmt, hash::Hash};
 
+use alloy_consensus::constants::{
+    EIP1559_TX_TYPE_ID, EIP2930_TX_TYPE_ID, EIP4844_TX_TYPE_ID, EIP7702_TX_TYPE_ID,
+    LEGACY_TX_TYPE_ID,
+};
+
 /// Helper trait that unifies all behaviour required by transaction to support full node operations.
 pub trait FullTransaction: Transaction + MaybeCompact {}
 
@@ -27,6 +32,35 @@ pub trait Transaction:
     + MaybeSerde
     + MaybeArbitrary
 {
+    /// Returns true if the transaction is a legacy transaction.
+    #[inline]
+    fn is_legacy(&self) -> bool {
+        self.ty() == LEGACY_TX_TYPE_ID
+    }
+
+    /// Returns true if the transaction is an EIP-2930 transaction.
+    #[inline]
+    fn is_eip2930(&self) -> bool {
+        self.ty() == EIP2930_TX_TYPE_ID
+    }
+
+    /// Returns true if the transaction is an EIP-1559 transaction.
+    #[inline]
+    fn is_eip1559(&self) -> bool {
+        self.ty() == EIP1559_TX_TYPE_ID
+    }
+
+    /// Returns true if the transaction is an EIP-4844 transaction.
+    #[inline]
+    fn is_eip4844(&self) -> bool {
+        self.ty() == EIP4844_TX_TYPE_ID
+    }
+
+    /// Returns true if the transaction is an EIP-7702 transaction.
+    #[inline]
+    fn is_eip7702(&self) -> bool {
+        self.ty() == EIP7702_TX_TYPE_ID
+    }
 }
 
 impl<T> Transaction for T where