From 1a1caa422dd2941e889300c9ce00fbf92fddc577 Mon Sep 17 00:00:00 2001
From: Eugene Kim <ek@harmony.one>
Date: Mon, 9 Sep 2019 16:22:43 -0700
Subject: [PATCH] Add BodyInterface

---
 core/types/block.go | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/core/types/block.go b/core/types/block.go
index 4a4264b0b..9cc4ba28d 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -75,6 +75,31 @@ func (n *BlockNonce) UnmarshalText(input []byte) error {
 	return hexutil.UnmarshalFixedText("BlockNonce", input, n[:])
 }
 
+// BodyInterface is a simple accessor interface for block body.
+type BodyInterface interface {
+	// Transactions returns a deep copy the list of transactions in this block.
+	Transactions() []*Transaction
+
+	// SetTransactions sets the list of transactions with a deep copy of the
+	// given list.
+	SetTransactions(newTransactions []*Transaction)
+
+	// Uncles returns a deep copy of the list of uncle headers of this block.
+	Uncles() []*block.Header
+
+	// SetUncles sets the list of uncle headers with a deep copy of the given
+	// list.
+	SetUncles(newUncle []*block.Header)
+
+	// IncomingReceipts returns a deep copy of the list of incoming cross-shard
+	// transaction receipts of this block.
+	IncomingReceipts() CXReceiptsProofs
+
+	// SetIncomingReceipts sets the list of incoming cross-shard transaction
+	// receipts of this block with a dep copy of the given list.
+	SetIncomingReceipts(newIncomingReceipts CXReceiptsProofs)
+}
+
 // Body is a simple (mutable, non-safe) data container for storing and moving
 // a block's data contents (transactions and uncles) together.
 type Body struct {