YuJianrong#3 Make emscripten module build and import browserify-friendly

Solves the "unrar.RarArchive is not a constructor"

YuJianrong#3

package.json

@@ -20,7 +20,6 @@
     "prebuildRelease": "npm run tslint",
     "buildRelease": "npm run clean && tsc && node ./dist/build/make.js release",
     "debug": "npm run test -- --debug-brk --inspect",
-
     "coverage": "tsc --sourceMap --outDir dist_map && istanbul cover node_modules/.bin/_mocha -- dist_map/test/*.spec.js",
     "browserify": "mkdir umd; browserify dist/index.js -s array-diff -o umd/array-diff.js"
   },
@@ -32,9 +31,10 @@
   "devDependencies": {
     "@types/mocha": "^2.2.40",
     "@types/shelljs": "^0.7.0",
+    "browserify": "^17.0.0",
     "mocha": "^3.2.0",
     "shelljs": "^0.7.7",
     "tslint": "^5.0.0",
-    "typescript": "^2.2.2"
+    "typescript": "^3.5.1"
   }
 }

src/build/make.ts

@@ -76,6 +76,7 @@ shjs.exec([
   "-std=c++14",
   "-s ALLOW_MEMORY_GROWTH=1",
   "-s DISABLE_EXCEPTION_CATCHING=0",
+  "-s MODULARIZE=1",
   "--memory-init-file 0",
   release ? "-O3" : "-g4",
   "--js-library ./src/cpp/bridge/bridge.js",

src/js/dataExtractor.ts

@@ -1,6 +1,6 @@
 import {DataFile} from "./dataFile";
 import {Extractor, SeekMethod} from "./extractor";
-import * as unrar from "./unrar";
+import unrar from "./unrarSingleton";
 
 export class DataExtractor extends Extractor {
   protected _filePath: string;

src/js/extractor.ts

@@ -1,6 +1,6 @@
 
 import { Ext as extIns } from "./extractorCurrent";
-import * as unrar from "./unrar";
+import unrar from "./unrarSingleton";
 
 export type SeekMethod = "CUR" | "SET" | "END";
 

src/js/fileExtractor.ts

@@ -2,7 +2,7 @@ import * as fs from "fs";
 import * as path from "path";
 
 import { Extractor, SeekMethod } from "./extractor";
-import * as unrar from "./unrar";
+import unrar from "./unrarSingleton";
 
 export class FileExtractor extends Extractor {
   protected _filePath: string;

src/js/unrarSingleton.ts

@@ -0,0 +1,5 @@
+import * as unrarCls from "./unrar";
+
+const unrar = new (<any>unrarCls);
+
+export default unrar;