use ethers 5.0.13

apps/remix-ide-e2e/src/commands/testFunction.ts

@@ -48,9 +48,9 @@ class TestFunction extends EventEmitter {
         const equal: boolean = deepequal(logs[key], expectedValue[key])
 
         if (!equal) {
-          browser.assert.fail(`Expected ${expectedValue[key]} but got ${logs[key]}`)
+          browser.assert.fail(`Expected ${JSON.stringify(expectedValue[key])} but got ${JSON.stringify(logs[key])}`)
         } else {
-          browser.assert.ok(true, `Expected value matched returned value ${expectedValue[key]}`)
+          browser.assert.ok(true, `Expected value matched returned value ${JSON.stringify(expectedValue[key])}`)
         }
       })
       this.emit('complete')

apps/remix-ide-e2e/src/tests/transactionExecution.test.ts

@@ -119,34 +119,30 @@ module.exports = {
             '1': 'bytes8[4]: _b8ret 0x1234000000000000,0x1234000000000000,0x1234000000000000,0x1234000000000000'
           },
           logs: [
-            {
-              'from': '0x8c1ed7e19abaa9f23c476da86dc1577f1ef401f5',
-              'topic': '0xd30981760edbf605bda8689e945f622877f230c9a77cbfbd448aa4b7d8ac6e7f',
-              'event': 'event1',
-              'args': {
-                '0': '-123',
-                '1': '123',
-                '2': {
-                  'hash': '0x9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658',
-                  'type': 'Indexed'
-                },
-                '3': '0x12340000',
-                '4': 'test _ test _ test _ test test _ test test _ test test _ test test _ test test _ test test _ test ',
-                '_i': '-123',
-                '_u': '123',
-                '_str': {
-                  'hash': '0x9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658',
-                  'type': 'Indexed'
-                },
-                '_b': '0x12340000',
-                '_notIndexed': 'test _ test _ test _ test test _ test test _ test test _ test test _ test test _ test test _ test ',
-                'length': 5
-              }
-            }
-          ]
+            {"from":"0x8c1ed7e19abaa9f23c476da86dc1577f1ef401f5",
+            "topic":"0xd30981760edbf605bda8689e945f622877f230c9a77cbfbd448aa4b7d8ac6e7f",
+            "event":"event1",
+            "args":{
+              "0":"-123",
+              "1":"123",
+              "2":{
+                "_isIndexed":true,
+                "hash":"0x9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658"
+              },
+              "3":"0x12340000",
+              "4":"test _ test _ test _ test test _ test test _ test test _ test test _ test test _ test test _ test "}
+            }]
         })
       .click('*[data-id="deployAndRunClearInstances"]')
-      .end()
+  },
+
+  'Should Compile and Deploy a contract which has an event declaring a function as parameter': function (browser: NightwatchBrowser) {
+    browser.testContracts('eventFunctionInput.sol', sources[3]['browser/eventFunctionInput.sol'], ['C'])
+        .clickLaunchIcon('udapp')
+        .selectAccount('0xCA35b7d915458EF540aDe6068dFe2F44E8fa733c') // this account will be used for this test suite
+        .click('#runTabView button[class^="instanceButton"]')
+        .waitForElementPresent('.instance:nth-of-type(2)')
+        .end()
   },
 
   tearDown: sauce
@@ -207,5 +203,11 @@ const sources = [
         _b8ret = _b8;
         emit event1(-123, 123, "test", hex"1234", "test _ test _ test _ test test _ test test _ test test _ test test _ test test _ test test _ test ");
     }
+}`}},
+// https://github.com/ethereum/remix-project/issues/404
+{'browser/eventFunctionInput.sol': {content: `
+pragma solidity >= 0.7.0;
+contract C {
+    event Test(function() external);
 }`}}
 ]

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

@@ -40,8 +40,8 @@ class EventsDecoder {
     const eventABI = {}
     const abi = new ethers.utils.Interface(contract.abi)
     for (let e in abi.events) {
-      const event = abi.events[e]
-      eventABI[event.topic.replace('0x', '')] = { event: event.name, inputs: event.inputs, object: event, abi: abi }
+      const event = abi.getEvent(e)
+      eventABI[abi.getEventTopic(e).replace('0x', '')] = { event: event.name, inputs: event.inputs, object: event, abi: abi }
     }
     return eventABI
   }
@@ -57,14 +57,21 @@ class EventsDecoder {
   _event (hash, eventsABI) {
     for (let k in eventsABI) {
       if (eventsABI[k][hash]) {
-        return eventsABI[k][hash]
+        let event = eventsABI[k][hash]
+        for (let input of event.inputs) {
+          if (input.type === 'function') {
+            input.type = 'bytes24'
+            input.baseType = 'bytes24'
+          }
+        }
+        return event
       }
     }
     return null
   }
 
   _stringifyBigNumber (value) {
-    return value._ethersType === 'BigNumber' ? value.toString() : value
+    return value._isBigNumber ? value.toString() : value
   }
 
   _stringifyEvent (value) {
@@ -89,8 +96,8 @@ class EventsDecoder {
       if (eventAbi) {
         const decodedlog = eventAbi.abi.parseLog(log)
         const decoded = {}
-        for (const v in decodedlog.values) {
-          decoded[v] = this._stringifyEvent(decodedlog.values[v])
+        for (const v in decodedlog.args) {
+          decoded[v] = this._stringifyEvent(decodedlog.args[v])
         }
         events.push({ from: log.address, topic: topicId, event: eventAbi.event, args: decoded })
       } else {

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

@@ -36,8 +36,7 @@ module.exports = {
   encodeFunctionId: function (funABI) {
     if (funABI.type === 'fallback' || funABI.type === 'receive') return '0x'
     let abi = new ethers.utils.Interface([funABI])
-    abi = abi.functions[funABI.name]
-    return abi.sighash
+    return abi.getSighash(funABI.name)
   },
 
   sortAbiFunction: function (contractabi) {

package.json

@@ -199,7 +199,7 @@
     "eslint": "6.8.0",
     "eslint-config-prettier": "^6.11.0",
     "ethereumjs-util": "^6.2.0",
-    "ethers": "^4.0.27",
+    "ethers": "^5.0.13",
     "events": "^3.0.0",
     "execr": "^1.0.1",
     "exorcist": "^0.4.0",