Implement various mirror member maps

dart/tests/lib/mirrors/reflect_model_test.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library test.reflect_model_test;
+
+import 'dart:mirrors';
+
+import 'package:expect/expect.dart';
+
+import 'model.dart';
+
+isNoSuchMethodError(e) => e is NoSuchMethodError;
+
+name(Declaration mirror) {
+  return (mirror == null) ? '<null>' : stringify(mirror.simpleName);
+}
+
+stringifyMap(Map map) {
+  var buffer = new StringBuffer('{');
+  bool first = true;
+  for (String key in map.keys.map(MirrorSystem.getName).toList()..sort()) {
+    if (!first) buffer.write(', ');
+    first = false;
+    buffer.write(key);
+    buffer.write(': ');
+    buffer.write(stringify(map[new Symbol(key)]));
+  }
+  return (buffer..write('}')).toString();
+}
+
+stringifySymbol(Symbol symbol) => 's(${MirrorSystem.getName(symbol)})';
+
+writeDeclarationOn(DeclarationMirror mirror, StringBuffer buffer) {
+  buffer.write(stringify(mirror.simpleName));
+  if (mirror.owner != null) {
+    buffer.write(' in ');
+    buffer.write(name(mirror.owner));
+  }
+  if (mirror.isPrivate) buffer.write(', private');
+  if (mirror.isTopLevel) buffer.write(', top-level');
+}
+
+stringifyVariable(VariableMirror variable) {
+  var buffer = new StringBuffer('Variable(');
+  writeDeclarationOn(variable, buffer);
+  if (variable.isStatic) buffer.write(', static');
+  if (variable.isFinal) buffer.write(', final');
+  return (buffer..write(')')).toString();
+}
+
+stringifyMethod(MethodMirror method) {
+  var buffer = new StringBuffer('Method(');
+  writeDeclarationOn(method, buffer);
+  if (method.isStatic) buffer.write(', static');
+  if (method.isGetter) buffer.write(', getter');
+  if (method.isSetter) buffer.write(', setter');
+  return (buffer..write(')')).toString();
+}
+
+stringify(value) {
+  if (value is Map) return stringifyMap(value);
+  if (value is VariableMirror) return stringifyVariable(value);
+  if (value is MethodMirror) return stringifyMethod(value);
+  if (value is Symbol) return stringifySymbol(value);
+  if (value == null) return '<null>';
+  throw 'Unexpected value: $value';
+}
+
+expect(expected, actual) => Expect.stringEquals(expected, stringify(actual));
+
+main() {
+  var unnamed = new Symbol('');
+  var field = new Symbol('field');
+  var instanceMethod = new Symbol('instanceMethod');
+  var accessor = new Symbol('accessor');
+  var aMethod = new Symbol('aMethod');
+  var bMethod = new Symbol('bMethod');
+  var cMethod = new Symbol('cMethod');
+
+  var aClass = reflectClass(A);
+  var bClass = reflectClass(B);
+  var cClass = reflectClass(C);
+  var a = aClass.newInstance(unnamed, []);
+  var b = bClass.newInstance(unnamed, []);
+  var c = cClass.newInstance(unnamed, []);
+
+  expect('{field: Variable(s(field) in s(A))}', aClass.variables);
+  expect('{}', bClass.variables);
+  expect('{}', cClass.variables);
+
+  Expect.isNull(a.getField(field).reflectee);
+  Expect.equals('B:get field', b.getField(field).reflectee);
+  Expect.equals('B:get field', c.getField(field).reflectee);
+
+  Expect.equals(42, a.setField(field, 42).reflectee);
+  Expect.equals(87, b.setField(field, 87).reflectee);
+  Expect.equals(89, c.setField(field, 89).reflectee);
+
+  Expect.equals(42, a.getField(field).reflectee);
+  Expect.equals('B:get field', b.getField(field).reflectee);
+  Expect.equals('B:get field', c.getField(field).reflectee);
+  Expect.equals(89, fieldC);
+
+  expect('{accessor: Method(s(accessor) in s(A), getter)'
+         // TODO(ahe): Include instance field getters?
+         ', field: Method(s(field) in s(A), getter)'
+         '}',
+         aClass.getters);
+  expect('{accessor: Method(s(accessor) in s(B), getter)'
+         ', field: Method(s(field) in s(B), getter)}',
+         bClass.getters);
+  expect('{accessor: Method(s(accessor) in s(C), getter)}',
+         cClass.getters);
+
+  expect('{accessor=: Method(s(accessor=) in s(A), setter)'
+         // TODO(ahe): Include instance field setters?
+         ', field=: Method(s(field=) in s(A), setter)'
+         '}',
+         aClass.setters);
+  expect('{accessor=: Method(s(accessor=) in s(B), setter)}',
+         bClass.setters);
+  expect('{accessor=: Method(s(accessor=) in s(C), setter)'
+         ', field=: Method(s(field=) in s(C), setter)}',
+         cClass.setters);
+
+  Expect.equals('A:instanceMethod(7)', a.invoke(instanceMethod, [7]).reflectee);
+  Expect.equals('B:instanceMethod(9)', b.invoke(instanceMethod, [9]).reflectee);
+  Expect.equals(
+      'C:instanceMethod(13)', c.invoke(instanceMethod, [13]).reflectee);
+
+  expect(
+      '{aMethod: Method(s(aMethod) in s(A))'
+      ', instanceMethod: Method(s(instanceMethod) in s(A))}',
+      aClass.methods);
+
+  expect(
+      '{bMethod: Method(s(bMethod) in s(B))'
+      ', instanceMethod: Method(s(instanceMethod) in s(B))}',
+      bClass.methods);
+  expect(
+      '{cMethod: Method(s(cMethod) in s(C))'
+      ', instanceMethod: Method(s(instanceMethod) in s(C))}',
+      cClass.methods);
+
+  Expect.equals('A:get accessor', a.getField(accessor).reflectee);
+  Expect.equals('B:get accessor', b.getField(accessor).reflectee);
+  Expect.equals('C:get accessor', c.getField(accessor).reflectee);
+
+  Expect.equals('foo', a.setField(accessor, 'foo').reflectee);
+  Expect.equals('bar', b.setField(accessor, 'bar').reflectee);
+  Expect.equals('baz', c.setField(accessor, 'baz').reflectee);
+
+  Expect.equals('foo', accessorA);
+  Expect.equals('bar', accessorB);
+  Expect.equals('baz', accessorC);
+
+  Expect.equals('aMethod', a.invoke(aMethod, []).reflectee);
+  Expect.equals('aMethod', b.invoke(aMethod, []).reflectee);
+  Expect.equals('aMethod', c.invoke(aMethod, []).reflectee);
+
+  Expect.throws(() { a.invoke(bMethod, []); }, isNoSuchMethodError);
+  Expect.equals('bMethod', b.invoke(bMethod, []).reflectee);
+  Expect.equals('bMethod', c.invoke(bMethod, []).reflectee);
+
+  Expect.throws(() { a.invoke(cMethod, []); }, isNoSuchMethodError);
+  Expect.throws(() { b.invoke(cMethod, []); }, isNoSuchMethodError);
+  Expect.equals('cMethod', c.invoke(cMethod, []).reflectee);
+}