Babel preset: Enable support for async generator functions (#126)

* Babel preset: Enabled support for async generator functions * Babel preset: Add unit tests for async generator functions * Babel preset: Update changelog
WordPress · May 22, 2018 · 4a991ec · 4a991ec
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diff --git a/packages/babel-preset-default/CHANGELOG.md b/packages/babel-preset-default/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.3.0 (2018-05-22)
+
+- Added support for async generator functions ([#126](https://github.com/WordPress/packages/pull/126))
+
 ## 1.2.1 (2018-05-18)
 
 - Fix: Standardized `package.json` format  ([#119](https://github.com/WordPress/packages/pull/119))
diff --git a/packages/babel-preset-default/index.js b/packages/babel-preset-default/index.js
@@ -16,6 +16,7 @@ module.exports = {
 		[ require( 'babel-plugin-transform-react-jsx' ), {
 			pragma: 'wp.element.createElement',
 		} ],
+		require( 'babel-plugin-transform-async-generator-functions' ),
 		! isTestEnv && require( 'babel-plugin-transform-runtime' ),
 	].filter( Boolean ),
 };
diff --git a/packages/babel-preset-default/package.json b/packages/babel-preset-default/package.json
@@ -23,6 +23,7 @@
 	},
 	"dependencies": {
 		"@wordpress/browserslist-config": "^2.1.4",
+		"babel-plugin-transform-async-generator-functions": "^6.24.1",
 		"babel-plugin-transform-object-rest-spread": "^6.23.0",
 		"babel-plugin-transform-react-jsx": "^6.24.1",
 		"babel-plugin-transform-runtime": "^6.23.0",

diff --git a/packages/babel-preset-default/test/index.js b/packages/babel-preset-default/test/index.js
@@ -0,0 +1,15 @@
+describe( 'Babel preset default', () => {
+	async function* foo() {
+		await 1;
+		yield 2;
+	}
+
+	test( 'support for async generator functions', async () => {
+		const generator = foo();
+
+		expect( await generator.next() ).toEqual( {
+			done: false,
+			value: 2,
+		} );
+	} );
+} );