From 8932cd1d89e8640e93e70513aeb2197c5817a858 Mon Sep 17 00:00:00 2001
From: Roman Krasiuk <rokrassyuk@gmail.com>
Date: Tue, 15 Oct 2024 12:51:33 +0200
Subject: [PATCH] feat: `RlpNode::as_hash`

---
 src/nodes/rlp.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/nodes/rlp.rs b/src/nodes/rlp.rs
index 6f54531..c858327 100644
--- a/src/nodes/rlp.rs
+++ b/src/nodes/rlp.rs
@@ -89,6 +89,16 @@ impl RlpNode {
     pub fn as_slice(&self) -> &[u8] {
         &self.0
     }
+
+    /// Returns hash if this is an RLP-encoded hash
+    #[inline]
+    pub fn as_hash(&self) -> Option<B256> {
+        if self.len() == B256::len_bytes() + 1 {
+            Some(B256::from_slice(&self.0[1..]))
+        } else {
+            None
+        }
+    }
 }
 
 #[cfg(feature = "arbitrary")]