Creates `reflectors`, as a meta-meta feature that enables dynamic selection of a "mirror system".

test_reflectable/test/meta_reflectors_test.dart

+// Copyright (c) 2015, the Dart Team. All rights reserved. Use of this
+// source code is governed by a BSD-style license that can be found in
+// the LICENSE file.
+
+/// File being transformed by the reflectable transformer.
+/// Creates a `MetaReflector` which may be used to reflect on the set of
+/// reflectors themselves.
+///
+/// Independence: This is the only library in this program where both the
+/// reflector classes and the domain classes are seen together. The program
+/// as a whole illustrates a number of ways in which it is possible to make
+/// reflection, usage of reflection, and application specific classes (here
+/// known as 'domain classes') independent of each other, statically and
+/// dynamically.
+library test_reflectable.test.meta_reflectors_test;
+
+@GlobalQuantifyCapability(r"\.(M1|M2|M3|A|B|C|D)$", const Reflector())
+@GlobalQuantifyCapability(r"\.(M1|M2|M3|B|C|D)$", const Reflector2())
+@GlobalQuantifyCapability(r"\.(C|D)$", const ReflectorUpwardsClosed())
+@GlobalQuantifyCapability(r"\.(C|D)$", const ReflectorUpwardsClosedToA())
+@GlobalQuantifyCapability(r"\.(C|D)$", const ReflectorUpwardsClosedUntilA())
+import "package:reflectable/reflectable.dart";
+import "meta_reflectors_domain_definer.dart";
+import "meta_reflectors_definer.dart";
+import "meta_reflectors_meta.dart";
+import "meta_reflectors_user.dart";
+
+Map<String, Iterable<Reflectable>> scopeMap = <String, Iterable<Reflectable>>{
+  "polymer": <Reflectable>[const Reflector(), const ReflectorUpwardsClosed()],
+  "observe": <Reflectable>[const Reflector2(), const ReflectorUpwardsClosed()]
+};
+
+@ScopeMetaReflector()
+Iterable<Reflectable> reflectablesOfScope(String scope) => scopeMap[scope];
+
+main() {
+  runTests();
+}