Update compiler-worker.ts

libs/remix-solidity/src/compiler/compiler-worker.ts

 'use strict'
 
-import solc from 'solc/wrapper'
+import * as solc from 'solc/wrapper'
 import { CompilerInput, MessageToWorker } from './types'
-var compileJSON: ((input: CompilerInput) => string) | null = (input) => { return '' }
-var missingInputs: string[] = []
+let compileJSON: ((input: CompilerInput) => string) | null = (input) => { return '' }
+const missingInputs: string[] = []
 
 // 'DedicatedWorkerGlobalScope' object (the Worker global scope) is accessible through the self keyword
 // 'dom' and 'webworker' library files can't be included together https://github.com/microsoft/TypeScript/issues/20595
-export default (self) => {
+export default function (self) { // eslint-disable-line @typescript-eslint/explicit-module-boundary-types
   self.addEventListener('message', (e) => {
     const data: MessageToWorker = e.data
     switch (data.cmd) {
       case 'loadVersion':
-        delete self.Module
-        // NOTE: workaround some browsers?
-        self.Module = undefined
-        compileJSON = null
-        //importScripts() method of synchronously imports one or more scripts into the worker's scope
-        self.importScripts(data.data)
-        let compiler: solc = solc(self.Module)
-        compileJSON = (input) => {
-          try {
-            let missingInputsCallback = (path) => {
-              missingInputs.push(path)
-              return { 'error': 'Deferred import' }
+        {
+          delete self.Module
+          // NOTE: workaround some browsers?
+          self.Module = undefined
+          compileJSON = null
+          //importScripts() method of synchronously imports one or more scripts into the worker's scope
+          self.importScripts(data.data)
+          const compiler: solc = solc(self.Module)
+          compileJSON = (input) => {
+            try {
+              const missingInputsCallback = (path) => {
+                missingInputs.push(path)
+                return { 'error': 'Deferred import' }
+              }
+              return compiler.compile(input, { import: missingInputsCallback })
+            } catch (exception) {
+              return JSON.stringify({ error: 'Uncaught JavaScript exception:\n' + exception })
             }
-            return compiler.compile(input, { import: missingInputsCallback })
-          } catch (exception) {
-            return JSON.stringify({ error: 'Uncaught JavaScript exception:\n' + exception })
           }
+          self.postMessage({
+            cmd: 'versionLoaded',
+            data: compiler.version()
+          })
+          break
         }
-        self.postMessage({
-          cmd: 'versionLoaded',
-          data: compiler.version()
-        })
-        break
         
       case 'compile':
         missingInputs.length = 0