eth/protocols/snap, trie/trienode: polish the code

eth/protocols/snap/handler.go

@@ -332,7 +332,7 @@ func ServiceGetAccountRangeQuery(chain *core.BlockChain, req *GetAccountRangePac
 			return nil, nil
 		}
 	}
-	return accounts, proof.ByteList()
+	return accounts, proof.List()
 }
 
 func ServiceGetStorageRangesQuery(chain *core.BlockChain, req *GetStorageRangesPacket) ([][]*StorageData, [][]byte) {
@@ -434,9 +434,7 @@ func ServiceGetStorageRangesQuery(chain *core.BlockChain, req *GetStorageRangesP
 					return nil, nil
 				}
 			}
-			for _, blob := range proof.ByteList() {
-				proofs = append(proofs, blob)
-			}
+			proofs = append(proofs, proof.List()...)
 			// Proof terminates the reply as proofs are only added if a node
 			// refuses to serve more data (exception when a contract fetch is
 			// finishing, but that's that).

eth/protocols/snap/sync_test.go

@@ -286,7 +286,7 @@ func createAccountRequestResponse(t *testPeer, root common.Hash, origin common.H
 			t.logger.Error("Could not prove last item", "error", err)
 		}
 	}
-	return keys, vals, proof.ByteList()
+	return keys, vals, proof.List()
 }
 
 // defaultStorageRequestHandler is a well-behaving storage request handler
@@ -368,9 +368,7 @@ func createStorageRequestResponse(t *testPeer, root common.Hash, accounts []comm
 					t.logger.Error("Could not prove last item", "error", err)
 				}
 			}
-			for _, blob := range proof.ByteList() {
-				proofs = append(proofs, blob)
-			}
+			proofs = append(proofs, proof.List()...)
 			break
 		}
 	}
@@ -427,9 +425,7 @@ func createStorageRequestResponseAlwaysProve(t *testPeer, root common.Hash, acco
 					t.logger.Error("Could not prove last item", "error", err)
 				}
 			}
-			for _, blob := range proof.ByteList() {
-				proofs = append(proofs, blob)
-			}
+			proofs = append(proofs, proof.List()...)
 			break
 		}
 	}
@@ -614,7 +610,7 @@ func testSyncBloatedProof(t *testing.T, scheme string) {
 			keys = append(keys[:1], keys[2:]...)
 			vals = append(vals[:1], vals[2:]...)
 		}
-		if err := t.remote.OnAccounts(t, requestId, keys, vals, proof.ByteList()); err != nil {
+		if err := t.remote.OnAccounts(t, requestId, keys, vals, proof.List()); err != nil {
 			t.logger.Info("remote error on delivery (as expected)", "error", err)
 			t.term()
 			// This is actually correct, signal to exit the test successfully

trie/trienode/proof.go

@@ -102,12 +102,12 @@ func (db *ProofSet) DataSize() int {
 	return db.dataSize
 }
 
-// ByteList converts the node set to a [][]byte
-func (db *ProofSet) ByteList() [][]byte {
+// List converts the node set to a slice of bytes.
+func (db *ProofSet) List() [][]byte {
 	db.lock.RLock()
 	defer db.lock.RUnlock()
 
-	var values = make([][]byte, len(db.order))
+	values := make([][]byte, len(db.order))
 	for i, key := range db.order {
 		values[i] = db.nodes[key]
 	}