Add .toml asset support (#742)

* Add `.toml` asset support

* Leverage `utils/serializeObject` in TOMLAsset

src/Parser.js

@@ -21,6 +21,7 @@ class Parser {
     this.registerExtension('json5', './assets/JSONAsset');
     this.registerExtension('yaml', './assets/YAMLAsset');
     this.registerExtension('yml', './assets/YAMLAsset');
+    this.registerExtension('toml', './assets/TOMLAsset');
     this.registerExtension('gql', './assets/GraphqlAsset');
     this.registerExtension('graphql', './assets/GraphqlAsset');
 

src/assets/TOMLAsset.js

@@ -0,0 +1,22 @@
+const Asset = require('../Asset');
+const toml = require('toml');
+const serializeObject = require('../utils/serializeObject');
+
+class TOMLAsset extends Asset {
+  constructor(name, pkg, options) {
+    super(name, pkg, options);
+    this.type = 'js';
+  }
+
+  parse(code) {
+    return toml.parse(code);
+  }
+
+  generate() {
+    return {
+      js: serializeObject(this.ast, this.options.minify)
+    };
+  }
+}
+
+module.exports = TOMLAsset;

test/integration/toml/index.js

@@ -0,0 +1,5 @@
+var local = require('./local.toml');
+
+module.exports = function () {
+  return local.a + local.b.c;
+};

test/integration/toml/local.toml

@@ -0,0 +1,4 @@
+a = 1
+
+[b]
+c = 2

test/javascript.js

@@ -408,6 +408,24 @@ describe('javascript', function() {
     assert.equal(output(), 3);
   });
 
+  it('should support requiring TOML files', async function() {
+    let b = await bundle(__dirname + '/integration/toml/index.js');
+
+    assertBundleTree(b, {
+      name: 'index.js',
+      assets: ['index.js', 'local.toml'],
+      childBundles: [
+        {
+          type: 'map'
+        }
+      ]
+    });
+
+    let output = run(b);
+    assert.equal(typeof output, 'function');
+    assert.equal(output(), 3);
+  });
+
   it('should support requiring CoffeeScript files', async function() {
     let b = await bundle(__dirname + '/integration/coffee/index.js');
 
@@ -576,4 +594,13 @@ describe('javascript', function() {
     let json = fs.readFileSync(__dirname + '/dist/index.js', 'utf8');
     assert(json.includes('{a:1,b:{c:2}}'));
   });
+
+  it('should minify TOML for production', async function() {
+    await bundle(__dirname + '/integration/toml/index.js', {
+      production: true
+    });
+
+    let json = fs.readFileSync(__dirname + '/dist/index.js', 'utf8');
+    assert(json.includes('{a:1,b:{c:2}}'));
+  });
 });