RawU256 must be big-endian

aurora-is-near · Jun 22, 2021 · 7705c27 · 7705c27
1 parent b67e8be
commit 7705c27
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Showing 2 changed files with 2 additions and 5 deletions.
diff --git a/replayer/types.go b/replayer/types.go
@@ -3,5 +3,5 @@ package replayer
 // RawAddress type for Aurora Engine.
 type RawAddress [20]uint8
 
-// RawU256 type for Aurora Engine (little-endian large integer type).
+// RawU256 type for Aurora Engine (big-endian large integer type).
 type RawU256 [32]uint8
diff --git a/replayer/util.go b/replayer/util.go
@@ -54,10 +54,7 @@ func bigIntToRawU256(b *big.Int) (RawU256, error) {
 			fmt.Errorf("replayer: big.Int cannot be represented as RawU256: %s",
 				b.String())
 	}
-	// convert big-endian to little-endian
-	for i, j := 0, len(bytes)-1; i < j; i, j = i+1, j-1 {
-		bytes[i], bytes[j] = bytes[j], bytes[i]
-	}
+	// the encoding is already big-endian
 	copy(res[:], bytes[:])
 	return res, nil
 }