chore(rpc): define trait RpcNodeCoreExt and replace LoadBlock::cache

crates/optimism/rpc/src/eth/block.rs

@@ -4,15 +4,13 @@ use alloy_rpc_types::BlockId;
 use op_alloy_network::Network;
 use op_alloy_rpc_types::OpTransactionReceipt;
 use reth_chainspec::ChainSpecProvider;
-use reth_node_api::FullNodeComponents;
 use reth_optimism_chainspec::OpChainSpec;
 use reth_primitives::TransactionMeta;
 use reth_provider::HeaderProvider;
 use reth_rpc_eth_api::{
     helpers::{EthBlocks, LoadBlock, LoadPendingBlock, LoadReceipt, SpawnBlocking},
     RpcNodeCore, RpcReceipt,
 };
-use reth_rpc_eth_types::EthStateCache;
 
 use crate::{OpEthApi, OpEthApiError, OpReceiptBuilder};
 
@@ -80,10 +78,6 @@ where
 impl<N> LoadBlock for OpEthApi<N>
 where
     Self: LoadPendingBlock + SpawnBlocking,
-    N: FullNodeComponents,
+    N: RpcNodeCore,
 {
-    #[inline]
-    fn cache(&self) -> &EthStateCache {
-        self.inner.cache()
-    }
 }

crates/optimism/rpc/src/eth/mod.rs

@@ -30,7 +30,7 @@ use reth_rpc_eth_api::{
         AddDevSigners, EthApiSpec, EthFees, EthSigner, EthState, LoadBlock, LoadFee, LoadState,
         SpawnBlocking, Trace,
     },
-    EthApiTypes, RpcNodeCore,
+    EthApiTypes, RpcNodeCore, RpcNodeCoreExt,
 };
 use reth_rpc_eth_types::{EthStateCache, FeeHistoryCache, GasPriceOracle};
 use reth_tasks::{
@@ -116,7 +116,6 @@ where
 
 impl<N> RpcNodeCore for OpEthApi<N>
 where
-    Self: Clone,
     N: RpcNodeCore,
 {
     type Provider = N::Provider;
@@ -141,6 +140,16 @@ where
     }
 }
 
+impl<N> RpcNodeCoreExt for OpEthApi<N>
+where
+    N: RpcNodeCore,
+{
+    #[inline]
+    fn cache(&self) -> &EthStateCache {
+        self.inner.cache()
+    }
+}
+
 impl<N> EthApiSpec for OpEthApi<N>
 where
     N: RpcNodeCore<

crates/rpc/rpc-eth-api/src/helpers/block.rs

@@ -6,10 +6,9 @@ use alloy_rpc_types::{Header, Index};
 use futures::Future;
 use reth_primitives::{BlockId, Receipt, SealedBlock, SealedBlockWithSenders};
 use reth_provider::{BlockIdReader, BlockReader, BlockReaderIdExt, HeaderProvider};
-use reth_rpc_eth_types::EthStateCache;
 use reth_rpc_types_compat::block::{from_block, uncle_block_from_header};
 
-use crate::{FromEthApiError, FullEthApiTypes, RpcBlock, RpcReceipt};
+use crate::{node::RpcNodeCoreExt, FromEthApiError, FullEthApiTypes, RpcBlock, RpcReceipt};
 
 use super::{LoadPendingBlock, LoadReceipt, SpawnBlocking};
 
@@ -196,12 +195,7 @@ pub trait EthBlocks: LoadBlock {
 /// Loads a block from database.
 ///
 /// Behaviour shared by several `eth_` RPC methods, not exclusive to `eth_` blocks RPC methods.
-pub trait LoadBlock: LoadPendingBlock + SpawnBlocking {
-    /// Returns a handle for reading data from memory.
-    ///
-    /// Data access in default (L1) trait method implementations.
-    fn cache(&self) -> &EthStateCache;
-
+pub trait LoadBlock: LoadPendingBlock + SpawnBlocking + RpcNodeCoreExt {
     /// Returns the block object for the given block id.
     fn block_with_senders(
         &self,

crates/rpc/rpc-eth-api/src/lib.rs

@@ -26,7 +26,7 @@ pub use bundle::{EthBundleApiServer, EthCallBundleApiServer};
 pub use core::{EthApiServer, FullEthApiServer};
 pub use filter::EthFilterApiServer;
 pub use helpers::error::{AsEthApiError, FromEthApiError, FromEvmError, IntoEthApiError};
-pub use node::RpcNodeCore;
+pub use node::{RpcNodeCore, RpcNodeCoreExt};
 pub use pubsub::EthPubSubApiServer;
 pub use types::{EthApiTypes, FullEthApiTypes, RpcBlock, RpcReceipt, RpcTransaction};
 

crates/rpc/rpc-eth-api/src/node.rs

@@ -1,6 +1,7 @@
 //! Helper trait for interfacing with [`FullNodeComponents`].
 
 use reth_node_api::FullNodeComponents;
+use reth_rpc_eth_types::EthStateCache;
 
 /// Helper trait to relax trait bounds on [`FullNodeComponents`].
 ///
@@ -56,3 +57,10 @@ where
         FullNodeComponents::provider(self)
     }
 }
+
+/// Additional components, asides the core node components, needed to run `eth_` namespace API
+/// server.
+pub trait RpcNodeCoreExt: RpcNodeCore {
+    /// Returns handle to RPC cache service.
+    fn cache(&self) -> &EthStateCache;
+}

crates/rpc/rpc/src/eth/core.rs

@@ -10,6 +10,7 @@ use reth_primitives::BlockNumberOrTag;
 use reth_provider::{BlockReaderIdExt, CanonStateSubscriptions, ChainSpecProvider};
 use reth_rpc_eth_api::{
     helpers::{EthSigner, SpawnBlocking},
+    node::RpcNodeCoreExt,
     EthApiTypes, RpcNodeCore,
 };
 use reth_rpc_eth_types::{
@@ -169,6 +170,17 @@ where
     }
 }
 
+impl<Provider, Pool, Network, EvmConfig> RpcNodeCoreExt
+    for EthApi<Provider, Pool, Network, EvmConfig>
+where
+    Self: RpcNodeCore,
+{
+    #[inline]
+    fn cache(&self) -> &EthStateCache {
+        self.inner.cache()
+    }
+}
+
 impl<Provider, Pool, Network, EvmConfig> std::fmt::Debug
     for EthApi<Provider, Pool, Network, EvmConfig>
 {

crates/rpc/rpc/src/eth/helpers/block.rs

@@ -8,7 +8,7 @@ use reth_rpc_eth_api::{
     helpers::{EthBlocks, LoadBlock, LoadPendingBlock, LoadReceipt, SpawnBlocking},
     RpcReceipt,
 };
-use reth_rpc_eth_types::{EthApiError, EthStateCache, ReceiptBuilder};
+use reth_rpc_eth_types::{EthApiError, ReceiptBuilder};
 
 use crate::EthApi;
 
@@ -68,8 +68,4 @@ where
     Self: LoadPendingBlock + SpawnBlocking,
     Provider: BlockReaderIdExt,
 {
-    #[inline]
-    fn cache(&self) -> &EthStateCache {
-        self.inner.cache()
-    }
 }