Add .jsconfig to validate js code

.github/workflows/test.yml

@@ -19,6 +19,7 @@ jobs:
           node-version: 18.x
       - run: npm install
       - run: npx eslint .
+      - run: npx tsc -p jsconfig.json
 
   test:
     runs-on: ubuntu-latest

.gitignore

@@ -1,6 +1,5 @@
 /.idea
 /node_modules
-/test.js
 /.nyc_output/
 /coverage/
 .tap/

jsconfig.json

@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "checkJs": true,
+    "target": "ES2022",
+    "moduleResolution":"node",
+    "types": ["node"],
+    "maxNodeModuleJsDepth": 0,
+  },
+  "exclude": [
+    "node_modules",
+    "coverage"
+  ]
+}

lib/BufferStream.js

@@ -3,7 +3,7 @@ const Stream = require('stream');
 module.exports = function(entry) {
   return new Promise(function(resolve, reject) {
     const chunks = [];
-    const bufferStream = Stream.Transform()
+    const bufferStream = new Stream.Transform()
       .on('finish', function() {
         resolve(Buffer.concat(chunks));
       })

lib/Decrypt.js

@@ -21,7 +21,7 @@ function crc(ch, crc) {
 
   if (ch.charCodeAt)
     ch = ch.charCodeAt(0);
-
+  //@ts-ignore
   return (bigInt(crc).shiftRight(8).and(0xffffff)).xor(table[bigInt(crc).xor(ch).and(0xff)]).value;
 }
 
@@ -36,21 +36,24 @@ function Decrypt() {
 
 Decrypt.prototype.update = function(h) {
   this.key0 = crc(h, this.key0);
+  //@ts-ignore
   this.key1 = bigInt(this.key0).and(255).and(4294967295).add(this.key1);
+  //@ts-ignore
   this.key1 = bigInt(this.key1).multiply(134775813).add(1).and(4294967295).value;
   this.key2 = crc(bigInt(this.key1).shiftRight(24).and(255), this.key2);
 };
 
 
 Decrypt.prototype.decryptByte = function(c) {
   const k = bigInt(this.key2).or(2);
+  //@ts-ignore
   c = c ^ bigInt(k).multiply(bigInt(k^1)).shiftRight(8).and(255);
   this.update(c);
   return c;
 };
 
 Decrypt.prototype.stream = function() {
-  const stream = Stream.Transform(),
+  const stream = new Stream.Transform(),
     self = this;
 
   stream._transform = function(d, e, cb) {

lib/NoopStream.js

@@ -1,14 +1,12 @@
 const Stream = require('stream');
-const util = require('util');
-function NoopStream() {
-  if (!(this instanceof NoopStream)) {
-    return new NoopStream();
-  }
-  Stream.Transform.call(this);
+class NoopStream extends Stream.Transform {
+  _transform(d, e, cb) { cb() ;};
+  promise() {
+    return new Promise((resolve, reject) => {
+      this.on('finish', resolve);
+      this.on('error', reject);
+    });
+  };
 }
 
-util.inherits(NoopStream, Stream.Transform);
-
-NoopStream.prototype._transform = function(d, e, cb) { cb() ;};
-
 module.exports = NoopStream;