refactor eventsDecoder

apps/remix-ide/src/app/udapp/make-udapp.js

@@ -45,11 +45,7 @@ export function makeUdapp (blockchain, compilersArtefacts, logHtmlCallback) {
   blockchain.startListening(txlistener)
 
   const eventsDecoder = new EventsDecoder({
-    api: {
-      resolveReceipt: function (tx, cb) {
-        transactionReceiptResolver.resolve(tx, cb)
-      }
-    }
+    resolveReceipt: transactionReceiptResolver.resolve.bind(transactionReceiptResolver)
   })
   txlistener.startListening()
   registry.put({api: eventsDecoder, name: 'eventsDecoder'})

libs/remix-lib/src/execution/eventsDecoder.js

@@ -7,8 +7,8 @@ const txHelper = require('./txHelper')
   *
   */
 class EventsDecoder {
-  constructor (opt = {}) {
-    this._api = opt.api
+  constructor ({resolveReceipt}) {
+    this.resolveReceipt = resolveReceipt
   }
 
 /**
@@ -20,7 +20,7 @@ class EventsDecoder {
   */
   parseLogs (tx, contractName, compiledContracts, cb) {
     if (tx.isCall) return cb(null, { decoded: [], raw: [] })
-    this._api.resolveReceipt(tx, (error, receipt) => {
+    this.resolveReceipt(tx, (error, receipt) => {
       if (error) return cb(error)
       this._decodeLogs(tx, receipt, contractName, compiledContracts, cb)
     })