From de8d73c083b7903d340cb4ec4df02c6296398c70 Mon Sep 17 00:00:00 2001
From: islishude <islishude@gmail.com>
Date: Mon, 17 Feb 2020 17:05:59 +0800
Subject: [PATCH] core/types: add From() helper function for Transaction

---
 core/types/transaction.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/types/transaction.go b/core/types/transaction.go
index 3eb8df0ac7..efc75c76d2 100644
--- a/core/types/transaction.go
+++ b/core/types/transaction.go
@@ -189,6 +189,11 @@ func (tx *Transaction) To() *common.Address {
 	return &to
 }
 
+// From returns the sender address of the transaction
+func (tx *Transaction) From() (common.Address, error) {
+	return NewEIP155Signer(tx.ChainId()).Sender(tx)
+}
+
 // Hash hashes the RLP encoding of tx.
 // It uniquely identifies the transaction.
 func (tx *Transaction) Hash() common.Hash {