Introduce Eth PayloadTypes Impl (paradigmxyz#11519)

Co-authored-by: Matthias Seitz <[email protected]>

crates/ethereum/engine-primitives/src/lib.rs

@@ -26,21 +26,40 @@ use reth_payload_primitives::{
 /// The types used in the default mainnet ethereum beacon consensus engine.
 #[derive(Debug, Default, Clone, serde::Deserialize, serde::Serialize)]
 #[non_exhaustive]
-pub struct EthEngineTypes;
+pub struct EthEngineTypes<T: PayloadTypes = EthPayloadTypes> {
+    _marker: std::marker::PhantomData<T>,
+}
 
-impl PayloadTypes for EthEngineTypes {
-    type BuiltPayload = EthBuiltPayload;
-    type PayloadAttributes = EthPayloadAttributes;
-    type PayloadBuilderAttributes = EthPayloadBuilderAttributes;
+impl<T: PayloadTypes> PayloadTypes for EthEngineTypes<T> {
+    type BuiltPayload = T::BuiltPayload;
+    type PayloadAttributes = T::PayloadAttributes;
+    type PayloadBuilderAttributes = T::PayloadBuilderAttributes;
 }
 
-impl EngineTypes for EthEngineTypes {
+impl<T: PayloadTypes> EngineTypes for EthEngineTypes<T>
+where
+    T::BuiltPayload: TryInto<ExecutionPayloadV1>
+        + TryInto<ExecutionPayloadEnvelopeV2>
+        + TryInto<ExecutionPayloadEnvelopeV3>
+        + TryInto<ExecutionPayloadEnvelopeV4>,
+{
     type ExecutionPayloadV1 = ExecutionPayloadV1;
     type ExecutionPayloadV2 = ExecutionPayloadEnvelopeV2;
     type ExecutionPayloadV3 = ExecutionPayloadEnvelopeV3;
     type ExecutionPayloadV4 = ExecutionPayloadEnvelopeV4;
 }
 
+/// A default payload type for [`EthEngineTypes`]
+#[derive(Debug, Default, Clone, serde::Deserialize, serde::Serialize)]
+#[non_exhaustive]
+pub struct EthPayloadTypes;
+
+impl PayloadTypes for EthPayloadTypes {
+    type BuiltPayload = EthBuiltPayload;
+    type PayloadAttributes = EthPayloadAttributes;
+    type PayloadBuilderAttributes = EthPayloadBuilderAttributes;
+}
+
 /// Validator for the ethereum engine API.
 #[derive(Debug, Clone)]
 pub struct EthereumEngineValidator {

crates/node/types/src/lib.rs

@@ -40,6 +40,7 @@ pub trait NodeTypes: Send + Sync + Unpin + 'static {
 pub trait NodeTypesWithEngine: NodeTypes {
     /// The node's engine types, defining the interaction with the consensus engine.
     type Engine: EngineTypes;
+    // type Engine: EngineTypes;
 }
 
 /// A helper trait that is downstream of the [`NodeTypesWithEngine`] trait and adds database to the