From 346908775a1e4cb7b9bde657c0effd07b794ad9f Mon Sep 17 00:00:00 2001
From: Sina Mahmoodi <itz.s1na@gmail.com>
Date: Wed, 8 May 2019 16:06:02 +0200
Subject: [PATCH] Annotate op handlers with type

---
 lib/evm/opFns.ts | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/evm/opFns.ts b/lib/evm/opFns.ts
index 40fb3ad712..faca3d16e9 100644
--- a/lib/evm/opFns.ts
+++ b/lib/evm/opFns.ts
@@ -21,8 +21,18 @@ function addressToBuffer (address: BN) {
   return address.and(MASK_160).toArrayLike(Buffer, 'be', 20)
 }
 
+export interface SyncOpHandler {
+  (runState: RunState): void
+}
+
+export interface AsyncOpHandler {
+  (runState: RunState): Promise<void>
+}
+
+export type OpHandler = SyncOpHandler | AsyncOpHandler
+
 // the opcode functions
-module.exports = {
+export const handlers: {[k: string]: OpHandler} = {
   STOP: function (runState: RunState) {
     runState.stopped = true
   },