support destructuring in parameter lists - closes #19

test/fixtures/destructuring/parameters/actual.js

@@ -0,0 +1,15 @@
+function somethingAdvanced({topLeft: {x: x1, y: y1}, bottomRight: {x: x2, y: y2}}){
+
+}
+
+function unpackObject({title: title, author: author}) {
+  return title + ' ' + author;
+}
+
+console.log(unpackObject({title: 'title', author: 'author'}));
+
+var unpackArray = function ([a, b, c], [x, y, z]) {
+  return a+b+c;
+};
+
+console.log(unpackArray(['hello', ', ', 'world'], [1, 2, 3]));

test/fixtures/destructuring/parameters/expected.js

@@ -0,0 +1,28 @@
+function somethingAdvanced(_ref){
+  var x1 = _ref.topLeft.x;
+  var y1 = _ref.topLeft.y;
+  var x2 = _ref.bottomRight.x;
+  var y2 = _ref.bottomRight.y;
+}
+
+function unpackObject(_ref2) {
+  var title = _ref2.title;
+  var author = _ref2.author;
+  return title + ' ' + author;
+}
+
+console.log(unpackObject({title: 'title', author: 'author'}));
+
+var unpackArray = function (_ref3, _ref4) {
+  var a = _ref3[0];
+  var b = _ref3[1];
+  var c = _ref3[2];
+
+  var x = _ref4[0];
+  var y = _ref4[1];
+  var z = _ref4[2];
+
+  return a + b + c;
+};
+
+console.log(unpackArray(['hello', ', ', 'world'], [1, 2, 3]));