enhancement: DRY raw() values

Author: ryanio

packages/tx/src/transaction.ts

@@ -135,19 +135,7 @@ export default class Transaction {
    * Computes a sha3-256 hash of the serialized tx
    */
   hash(): Buffer {
-    const values = [
-      bnToRlp(this.nonce),
-      bnToRlp(this.gasPrice),
-      bnToRlp(this.gasLimit),
-      this.to !== undefined ? this.to.buf : Buffer.from([]),
-      bnToRlp(this.value),
-      this.data,
-      this.v ? bnToRlp(this.v) : Buffer.from([]),
-      this.r ? bnToRlp(this.r) : Buffer.from([]),
-      this.s ? bnToRlp(this.s) : Buffer.from([]),
-    ]
-
-    return rlphash(values)
+    return rlphash(this.raw())
   }
 
   getMessageToSign() {
@@ -383,14 +371,7 @@ export default class Transaction {
   }
 
   private _getMessageToSign(withEIP155: boolean) {
-    const values = [
-      bnToRlp(this.nonce),
-      bnToRlp(this.gasPrice),
-      bnToRlp(this.gasLimit),
-      this.to !== undefined ? this.to.buf : Buffer.from([]),
-      bnToRlp(this.value),
-      this.data,
-    ]
+    const values = this.raw().slice(0, 6)
 
     if (withEIP155) {
       values.push(toBuffer(this.getChainId()))