Companion PR for 'Simplify NativeExecutionDispatch and remove the native_executor_instance!' (9562) (#3643)

* Companion PR

* Add test executors

* Change comment to doc comment

* Update node/test/service/src/lib.rs

* Improve comments

* update Substrate

Co-authored-by: parity-processbot <>

polkadot/node/test/polkadot-simnet/common/src/lib.rs

@@ -40,12 +40,22 @@ type BlockImport<B, BE, C, SC> = BabeBlockImport<B, C, GrandpaBlockImport<BE, B,
 type Block = polkadot_primitives::v1::Block;
 type SelectChain = sc_consensus::LongestChain<TFullBackend<Block>, Block>;
 
-sc_executor::native_executor_instance!(
-	pub Executor,
-	polkadot_runtime::api::dispatch,
-	polkadot_runtime::native_version,
-	(benchmarking::benchmarking::HostFunctions, SignatureVerificationOverride),
-);
+/// Declare an instance of the native executor named `Executor`. Include the wasm binary as the
+/// equivalent wasm code.
+pub struct Executor;
+
+impl sc_executor::NativeExecutionDispatch for Executor {
+	type ExtendHostFunctions =
+		(benchmarking::benchmarking::HostFunctions, SignatureVerificationOverride);
+
+	fn dispatch(method: &str, data: &[u8]) -> Option<Vec<u8>> {
+		polkadot_runtime::api::dispatch(method, data)
+	}
+
+	fn native_version() -> sc_executor::NativeVersion {
+		polkadot_runtime::native_version()
+	}
+}
 
 /// `ChainInfo` implementation.
 pub struct PolkadotChainInfo;