Getting enums for free.

test/kernel/regression/enum.dart.txt

+library;
+import self as self;
+import "dart:core" as core;
+
+class Foo extends core::Object {
+  final field dynamic index;
+  static const field dynamic ec1 = const self::Foo::•(0);
+  static const field dynamic ec2 = const self::Foo::•(1);
+  static const field dynamic values = const <dynamic>[self::Foo::ec1, self::Foo::ec2];
+  const constructor •(core::int index) → void
+    : self::Foo::index = index, super core::Object::•()
+    ;
+  method toString() → core::String
+    return const <dynamic, dynamic>{0: "Foo.ec1", 1: "Foo.ec2"}.[](this.index);

[ahe, 2016/06/20 17:27:26]

This looks a bit odd, but I assume this is to simplify tree-shaking:

Because the names are in a map, individual enum constants can be removed if they
aren't needed.

Because the names aren't stored directly in the constants, the names can be
omitted if the toString method is never called.

+}