feat(debug): add debug_executionWitness to debug api (#1649)

crates/provider/Cargo.toml

@@ -31,6 +31,7 @@ alloy-rpc-client.workspace = true
 alloy-rpc-types-admin = { workspace = true, optional = true }
 alloy-rpc-types-anvil = { workspace = true, optional = true }
 alloy-rpc-types-eth = { workspace = true, features = ["serde"] }
+alloy-rpc-types-debug = { workspace = true, optional = true }
 alloy-rpc-types-trace = { workspace = true, optional = true }
 alloy-rpc-types-txpool = { workspace = true, optional = true }
 alloy-rpc-types-engine = { workspace = true, optional = true, features = [
@@ -118,7 +119,7 @@ anvil-node = [
     "dep:alloy-signer-local",
     "dep:alloy-signer",
 ]
-debug-api = ["dep:alloy-rpc-types-trace"]
+debug-api = ["dep:alloy-rpc-types-trace", "dep:alloy-rpc-types-debug"]
 erc4337-api = []
 engine-api = ["dep:alloy-rpc-types-engine"]
 net-api = []

crates/provider/src/ext/debug.rs

@@ -2,6 +2,7 @@
 use crate::Provider;
 use alloy_network::Network;
 use alloy_primitives::{hex, Bytes, TxHash, B256};
+use alloy_rpc_types_debug::ExecutionWitness;
 use alloy_rpc_types_eth::{
     BadBlock, BlockId, BlockNumberOrTag, Bundle, StateContext, TransactionRequest,
 };
@@ -128,6 +129,21 @@ pub trait DebugApi<N, T>: Send + Sync {
         state_context: StateContext,
         trace_options: GethDebugTracingCallOptions,
     ) -> TransportResult<Vec<GethTrace>>;
+
+    /// The `debug_executionWitness` method allows for re-execution of a block with the purpose of
+    /// generating an execution witness. The witness comprises of a map of all hashed trie nodes to
+    /// their preimages that were required during the execution of the block, including during
+    /// state root recomputation.
+    ///
+    /// The first argument is the block number or block hash.
+    ///
+    /// # Note
+    ///
+    /// Not all nodes support this call.
+    async fn debug_execution_witness(
+        &self,
+        block: BlockNumberOrTag,
+    ) -> TransportResult<ExecutionWitness>;
 }
 
 #[cfg_attr(target_arch = "wasm32", async_trait::async_trait(?Send))]
@@ -216,6 +232,13 @@ where
     ) -> TransportResult<Vec<GethTrace>> {
         self.client().request("debug_traceCallMany", (bundles, state_context, trace_options)).await
     }
+
+    async fn debug_execution_witness(
+        &self,
+        block: BlockNumberOrTag,
+    ) -> TransportResult<ExecutionWitness> {
+        self.client().request("debug_executionWitness", block).await
+    }
 }
 
 #[cfg(test)]