dependency lift + appropriate code changes and adjusted README since stringArrayEncoding is expected to be a string array

Author: mppperez

README.md

@@ -113,7 +113,7 @@ interface ObfuscatorOptions {
   sourceMapFileName?: string
   sourceMapMode?: "separate" | "inline"
   stringArray?: boolean
-  stringArrayEncoding?: boolean
+  stringArrayEncoding?: string[]
   stringArrayThreshold?: 0.75
   target?: "browser" | "extension" | "node"
   unicodeEscapeSequence?: boolean

package.json

@@ -8,17 +8,15 @@
   "license": "MIT",
   "dependencies": {
     "@types/app-root-path": "^1.2.4",
-    "@types/babel-core": "^6.25.3",
-    "@types/babel-generator": "^6.25.1",
-    "babel-traverse": "^6.26.0",
-    "babylon": "^6.18.0",
-    "@types/node": "^9.3.0",
-    "@types/semver": "^5.4.0",
+    "@types/babel__core": "^7.1.14",
+    "@types/babel__generator": "^7.6.2",
+    "@types/node": "^14.14.37",
+    "@types/semver": "^7.3.4",
     "app-root-path": "^2.0.1",
-    "babel-generator": "^6.26.1",
-    "babel-traverse": "^6.26.0",
-    "babylon": "^6.18.0",
-    "javascript-obfuscator": "^2.6.0",
+    "@babel/generator": "^7.13.9",
+    "@babel/traverse": "^7.13.13",
+    "@babel/parser": "^7.13.13",
+    "javascript-obfuscator": "^2.11.0",
     "jju": "^1.3.0",
     "semver": "^5.4.1",
     "source-map": "^0.6.1"
@@ -39,18 +37,18 @@
   },
   "devDependencies": {
     "@types/jest": "^22.0.1",
-    "babel-preset-react-native": "^1.9.1",
+    "babel-preset-react-native": "^4.0.1",
     "husky": "^0.13.3",
-    "jest": "^22.0.6",
+    "jest": "^26.0.22",
     "lint-staged": "^3.4.1",
-    "metro": "^0.45.6",
+    "metro": "^0.65.2",
     "metro-bundler": "^0.22.1",
     "np": "^4.0.2",
     "prettier": "^1.10.2",
-    "react-native": "^0.57.1",
+    "react-native": "^0.64.0",
     "ts-jest": "^22.0.1",
     "ts-node": "^4.1.0",
-    "typescript": "^2.6.2"
+    "typescript": "^4.0.7"
   },
   "jest": {
     "transform": {

src/getMetroTransformer.ts

@@ -1,12 +1,13 @@
-import { Node } from "babel-core"
+import { Node } from "@babel/core"
 import { RawSourceMap, SourceMapConsumer } from "source-map"
 import * as semver from "semver"
 import {
   MetroRawSourceMap,
   convertStandardSourceMapToMetroRawSourceMap,
 } from "./composeSourceMaps"
-import * as babylon from "babylon"
-import traverse from "babel-traverse"
+import * as babylon from "@babel/parser"
+import traverse from "@babel/traverse"
+import generate from "@babel/generator";
 
 export interface MetroTransformerResult {
   ast?: Node
@@ -100,3 +101,27 @@ export function maybeTransformMetroResult(
     return { code, map }
   }
 }
+
+export function generateAndConvert(ast: Node, filename: string): MetroTransformerResult {
+  let generatorResult = generate(ast, {
+    filename: filename,
+    retainLines: true,
+    sourceMaps: true,
+    sourceFileName: filename,
+  });
+
+  if (!generatorResult.map) {
+    return {code: generatorResult.code};
+  }
+
+  const map = {
+    version: generatorResult.map.version + "",
+    mappings: generatorResult.map.mappings,
+    names: generatorResult.map.names,
+    sources: generatorResult.map.sources,
+    sourcesContent: generatorResult.map.sourcesContent,
+    file: generatorResult.map.file
+  }
+
+  return {code: generatorResult.code, map: map};
+}

src/obfuscatingTransformer.ts

@@ -4,11 +4,10 @@ import * as path from "path"
 import * as JavaScriptObfuscator from "javascript-obfuscator"
 import { path as appRootPath } from "app-root-path"
 
-import generate from "babel-generator"
-
 import { getCallerFile } from "./getCallerFile"
 import {
   MetroTransformer,
+  generateAndConvert,
   getMetroTransformer,
   MetroTransformerResult,
   maybeTransformMetroResult,
@@ -71,12 +70,7 @@ export function obfuscatingTransformer({
         const { code, map }: MetroTransformerResult = result.code
           ? result
           : result.ast
-            ? (generate(result.ast, {
-                filename: props.filename,
-                retainLines: true,
-                sourceMaps: true,
-                sourceFileName: props.filename,
-              }) as MetroTransformerResult)
+            ? generateAndConvert(result.ast, props.filename)
             : { code: "", map: "" }
 
         if (!code) {

typings/javascript-obfuscator.d.ts

@@ -22,7 +22,7 @@ declare module "javascript-obfuscator" {
       sourceMapFileName?: string
       sourceMapMode?: "separate" | "inline"
       stringArray?: boolean
-      stringArrayEncoding?: boolean
+      stringArrayEncoding?: string[]
       stringArrayThreshold?: 0.75
       target?: "browser" | "extension" | "node"
       unicodeEscapeSequence?: boolean