add define.default

README.md

@@ -31,6 +31,20 @@ require('foo/bar/baz') // => 'hi';
 require('foo') === require('foo/bar/baz');
 ```
 
+
+
+### `define.default('old/path', 'new-name')`
+
+`define.default` is short-hand for `export { default } from 'foo';`
+
+```js
+define('foo', [], () => 'hi');
+define.default('foo', 'foo/bar/baz');
+
+require('foo/bar/baz') // => 'hi';
+require('foo') === require('foo/bar/baz');
+```
+
 ### `require('require')`
 
 When within a module, one can require `require`. This provides a `require` scoped to the current module. Enabling dynamic, relatively path requires.

lib/loader/loader.js

@@ -265,8 +265,9 @@ var loader, define, requireModule, require, requirejs;
  // we don't support all of AMD
  // define.amd = {};
 
- function Alias(id) {
+ function Alias(id, prop) {
  this.id = id;
+ this.prop = prop;
  }
 
  define.alias = function(id, target) {
@@ -277,6 +278,16 @@ var loader, define, requireModule, require, requirejs;
  return new Alias(id);
  };
 
+ define.default = function(id, target) {
+ define(id, ['exports', target], function(exports, targetExports) {
+ Object.defineProperty(exports, 'default', {
+ get: function() {
+ return targetExports.default;
+ }
+ });
+ });
+ };
+
  function missingModule(id, referrer) {
  throw new Error('Could not find module `' + id + '` imported from `' + referrer + '`');
  }

tests/all.js

@@ -1260,6 +1260,43 @@ test('alias entries share same module instance', function() {
  });
 });
 
+test('define.default with default and other exports', function() {
+ var count = 0;
+ define.default('to', 'from');
+ define('from', ['exports'], function(exports) {
+ count++;
+
+ exports.default = 'YUP';
+ exports.other = 'NOPE';
+ });
+
+ equal(count, 0);
+ var result = require('to');
+ equal(count, 1);
+ equal(result.default, 'YUP');
+ deepEqual(require('from'), {
+ default: 'YUP',
+ other: 'NOPE',
+ });
+
+ equal(count, 1, 'second require should use existing instance');
+
+ var stats = statsForMonitor('loaderjs', tree);
+
+ deepEqual(stats, {
+ define: 2,
+ exports: 2,
+ findDeps: 2,
+ findModule: 3,
+ modules: 2,
+ pendingQueueLength: 2,
+ reify: 2,
+ require: 2,
+ resolve: 1,
+ resolveRelative: 0
+ });
+});
+
 test('alias with 2 arguments entries share same module instance', function() {
  var count = 0;
  define.alias('foo/index', 'bar');