feat: node/node

Add a starting point for Zones-for-Node.js.

Author: PatrickJS

Diff for: gulpfile.js

@@ -61,10 +61,12 @@ gulp.task('build/zone.js.d.ts', ['compile'], function() {
   return gulp.src('./build/lib/zone.d.ts').pipe(rename('zone.js.d.ts')).pipe(gulp.dest('./dist'));
 });
 
+// Zone for Node.js environment.
 gulp.task('build/zone-node.js', function(cb) {
   return generateBrowserScript('./lib/node/node.ts', 'zone-node.js', false, cb);
 });
 
+// Zone for the browser.
 gulp.task('build/zone.js', function(cb) {
   return generateBrowserScript('./lib/browser/browser.ts', 'zone.js', false, cb);
 });

Diff for: lib/node/node.ts

@@ -0,0 +1,114 @@
+import '../zone';
+import {patchMethod, patchPrototype, patchClass, zoneSymbol} from '../common/utils';
+
+// TODO(juliemr): remove duplication in this file.
+
+const set = 'set';
+const clear = 'clear';
+const blockingMethods = ['alert', 'prompt', 'confirm'];
+const _global = typeof window === 'undefined' ? global : window;
+
+// Timers
+const timers = require('timers');
+patchTimer(timers, set, clear, 'Timeout');
+patchTimer(timers, set, clear, 'Interval');
+patchTimer(timers, set, clear, 'Immediate');
+
+const shouldPatchGlobalTimers = global.setTimeout !== timers.setTimeout;
+
+if (shouldPatchGlobalTimers) {
+  patchTimer(_global, set, clear, 'Timeout');
+  patchTimer(_global, set, clear, 'Interval');
+  patchTimer(_global, set, clear, 'Immediate');
+}
+
+
+// Crypto
+let crypto;
+try {
+  crypto = require('crypto');
+} catch (err) {}
+
+// TODO(gdi2290): implement a better way to patch these methods
+if (crypto) {
+  let nativeRandomBytes = crypto.randomBytes;
+  crypto.randomBytes = function randomBytesZone(size: number, callback?: Function) {
+    if (!callback) {
+      return nativeRandomBytes(size);
+    } else {
+      let zone = Zone.current;
+      var source = crypto.constructor.name + '.randomBytes';
+      return nativeRandomBytes(size, zone.wrap(callback, source));
+    }
+  }.bind(crypto);
+
+  let nativePbkdf2 = crypto.pbkdf2;
+  crypto.pbkdf2 = function pbkdf2Zone(...args) {
+    let fn = args[args.length - 1];
+    if (typeof fn === 'function') {
+      let zone = Zone.current;
+      var source = crypto.constructor.name + '.pbkdf2';
+      args[args.length - 1] = zone.wrap(fn, source);
+      return nativePbkdf2(...args);
+    } else {
+      return nativePbkdf2(...args);
+    }
+  }.bind(crypto);
+}
+
+interface TimerOptions extends TaskData {
+  handleId: number;
+  args: any[];
+}
+
+function patchTimer(
+    window: any,
+    setName: string,
+    cancelName: string,
+    nameSuffix: string) {
+
+  var setNative = null;
+  var clearNative = null;
+  setName += nameSuffix;
+  cancelName += nameSuffix;
+
+  function scheduleTask(task: Task) {
+    const data = <TimerOptions>task.data;
+    data.args[0] = task.invoke;
+    data.handleId = setNative.apply(window, data.args);
+    return task;
+  }
+
+  function clearTask(task: Task) {
+    return clearNative((<TimerOptions>task.data).handleId);
+  }
+
+  setNative = patchMethod(window, setName, (delegate: Function) => function(self: any, args: any[]) {
+    if (typeof args[0] === 'function') {
+      var zone = Zone.current;
+      var options: TimerOptions = {
+        handleId: null,
+        isPeriodic: nameSuffix === 'Interval',
+        delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 : null,
+        args: args
+      };
+      return zone.scheduleMacroTask(setName, args[0], options, scheduleTask, clearTask);
+    } else {
+      // cause an error by calling it directly.
+      return delegate.apply(window, args);
+    }
+  });
+
+  clearNative = patchMethod(window, cancelName, (delegate: Function) => function(self: any, args: any[]) {
+    var task: Task = args[0];
+    if (task && typeof task.type === 'string') {
+      if (task.cancelFn && task.data.isPeriodic || task.runCount === 0) {
+        // Do not cancel already canceled functions
+        task.zone.cancelTask(task);
+      }
+    } else {
+      // cause an error by calling it directly.
+      delegate.apply(window, args);
+    }
+  });
+}