feat: add match_versioned_hashes (#1882)

* feat: add match_versioned_hashes

* bet

crates/eips/src/eip4844/sidecar.rs

@@ -1,7 +1,8 @@
 //! EIP-4844 sidecar type
 
 use crate::eip4844::{
-    kzg_to_versioned_hash, Blob, Bytes48, BYTES_PER_BLOB, BYTES_PER_COMMITMENT, BYTES_PER_PROOF,
+    kzg_to_versioned_hash, Blob, BlobAndProofV1, Bytes48, BYTES_PER_BLOB, BYTES_PER_COMMITMENT,
+    BYTES_PER_PROOF,
 };
 use alloc::{boxed::Box, vec::Vec};
 use alloy_primitives::{bytes::BufMut, B256};
@@ -54,6 +55,28 @@ impl core::fmt::Debug for BlobTransactionSidecar {
     }
 }
 
+impl BlobTransactionSidecar {
+    /// Matches versioned hashes and returns an iterator of (index, BlobAndProofV1) pairs
+    /// where index is the position in versioned_hashes that matched.
+    pub fn match_versioned_hashes<'a>(
+        &'a self,
+        versioned_hashes: &'a [B256],
+    ) -> impl Iterator<Item = (usize, BlobAndProofV1)> + 'a {
+        self.versioned_hashes().enumerate().flat_map(move |(i, blob_versioned_hash)| {
+            versioned_hashes.iter().enumerate().filter_map(move |(j, target_hash)| {
+                if blob_versioned_hash == *target_hash {
+                    Some((
+                        j,
+                        BlobAndProofV1 { blob: Box::new(self.blobs[i]), proof: self.proofs[i] },
+                    ))
+                } else {
+                    None
+                }
+            })
+        })
+    }
+}
+
 impl IntoIterator for BlobTransactionSidecar {
     type Item = BlobTransactionSidecarItem;
     type IntoIter = alloc::vec::IntoIter<BlobTransactionSidecarItem>;