feat(node): add native module polyfills: url, crypto (#729)

node/README.md

@@ -8,12 +8,12 @@ deno standard library as it's a compatibility module.
 
 ## Supported Builtins
 
-- [ ] assert
+- [x] assert _partly_
 - [x] buffer
 - [ ] child_process
 - [ ] cluster
 - [ ] console
-- [ ] crypto
+- [x] crypto _partly_
 - [ ] dgram
 - [ ] dns
 - [x] events
@@ -30,15 +30,15 @@ deno standard library as it's a compatibility module.
 - [x] querystring
 - [ ] readline
 - [ ] repl
-- [ ] stream
-- [ ] string_decoder
+- [x] stream
+- [x] string_decoder
 - [ ] sys
 - [x] timers
 - [ ] tls
 - [ ] tty
-- [ ] url
+- [x] url
 - [x] util _partly_
-- [ ] ~~v8~~ _can't implement_
+- ~~v8~~ _can't implement_
 - [ ] vm
 - [ ] worker_threads
 - [ ] zlib

node/module.ts

@@ -23,6 +23,7 @@ import "./global.ts";
 
 import * as nodeAssert from "./assert.ts";
 import * as nodeBuffer from "./buffer.ts";
+import * as nodeCrypto from "./crypto.ts";
 import nodeEvents from "./events.ts";
 import * as nodeFS from "./fs.ts";
 import * as nodeOs from "./os.ts";
@@ -31,6 +32,7 @@ import * as nodeQueryString from "./querystring.ts";
 import * as nodeStream from "./stream.ts";
 import * as nodeStringDecoder from "./string_decoder.ts";
 import * as nodeTimers from "./timers.ts";
+import * as nodeUrl from "./url.ts";
 import * as nodeUtil from "./util.ts";
 
 import * as path from "../path/mod.ts";
@@ -598,6 +600,7 @@ function createNativeModule(id: string, exports: any): Module {
 
 nativeModulePolyfill.set("assert", createNativeModule("assert", nodeAssert));
 nativeModulePolyfill.set("buffer", createNativeModule("buffer", nodeBuffer));
+nativeModulePolyfill.set("crypto", createNativeModule("crypto", nodeCrypto));
 nativeModulePolyfill.set("events", createNativeModule("events", nodeEvents));
 nativeModulePolyfill.set("fs", createNativeModule("fs", nodeFS));
 nativeModulePolyfill.set("os", createNativeModule("os", nodeOs));
@@ -608,13 +611,14 @@ nativeModulePolyfill.set(
 );
 nativeModulePolyfill.set(
   "stream",
-  createNativeModule("string_decoder", nodeStream),
+  createNativeModule("stream", nodeStream),
 );
 nativeModulePolyfill.set(
   "string_decoder",
   createNativeModule("string_decoder", nodeStringDecoder),
 );
 nativeModulePolyfill.set("timers", createNativeModule("timers", nodeTimers));
+nativeModulePolyfill.set("url", createNativeModule("url", nodeUrl));
 nativeModulePolyfill.set("util", createNativeModule("util", nodeUtil));
 
 function loadNativeModule(

node/module_test.ts

@@ -76,3 +76,40 @@ Deno.test("requireFileInSymlinkDir", () => {
   const { C } = require("./_module/cjs/dir");
   assertEquals(C, "C");
 });
+
+Deno.test("requireNodeJsNativeModules", () => {
+  // Checks these exist and don't throw.
+  require("assert");
+  require("buffer");
+  require("crypto");
+  require("events");
+  require("fs");
+  require("os");
+  require("path");
+  require("querystring");
+  require("stream");
+  require("string_decoder");
+  require("timers");
+  require("url");
+  require("util");
+
+  // TODO(kt3k): add these modules when implemented
+  // require("child_process");
+  // require("cluster");
+  // require("console");
+  // require("dgram");
+  // require("dns");
+  // require("http");
+  // require("http2");
+  // require("https");
+  // require("net");
+  // require("perf_hooks");
+  // require("readline");
+  // require("repl");
+  // require("sys");
+  // require("tls");
+  // require("tty");
+  // require("vm");
+  // require("worker_threads");
+  // require("zlib");
+});