Add mirrors tests

test/codegen/lib/mirrors/parameter_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.
+
+// This tests uses the multi-test "ok" feature:
+// none: Desired behaviour, passing on the VM.
+// 01: Trimmed version for dart2js.
+//
+// TODO(rmacnak,ahe): Remove multi-test when VM and dart2js are on par.
+
+/** Test of [ParameterMirror]. */
+library test.parameter_test;
+
+@MirrorsUsed(targets: const ['test.parameter_test', 'dart.core.int'], override: '*')
+import 'dart:mirrors';
+
+import 'package:expect/expect.dart';
+import 'stringify.dart';
+
+class B {
+  B();
+  B.foo(int x);
+  B.bar(int z, x);
+
+  // TODO(6490): Currently only supported by the VM.
+  B.baz(final int x, int y, final int z);
+  B.qux(int x, [int y= 3 + 1]);
+  B.quux(int x, {String str: "foo"});
+  B.corge({int x: 3 * 17, String str: "bar"});
+
+  var _x;
+  get x =>  _x;
+  set x(final value) { _x = value; }
+
+  grault([int x]) {}
+  garply({int y}) {}
+  waldo(int z) {}
+}
+
+class C <S extends int, T> {
+  // TODO(6490): Currently only supported by the VM.
+  foo(int a, S b) => b;
+  bar(S a, T b, num c) {}
+}
+
+main() {
+  ClassMirror cm = reflectClass(B);
+  var constructors = new Map<Symbol, MethodMirror>();
+  cm.declarations.forEach((k, v) {
+    if (v is MethodMirror && v.isConstructor) constructors[k] = v;
+  });
+
+  List<Symbol> constructorKeys =
+      [#B, #B.bar, #B.baz, #B.foo, #B.quux, #B.qux, #B.corge];
+  Expect.setEquals(constructorKeys, constructors.keys);
+
+  MethodMirror unnamedConstructor = constructors[#B];
+  expect('Method(s(B) in s(B), constructor)', unnamedConstructor);
+  expect('[]', unnamedConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         unnamedConstructor.returnType);
+
+  MethodMirror fooConstructor = constructors[#B.foo];
+  expect('Method(s(B.foo) in s(B), constructor)', fooConstructor);
+  expect('[Parameter(s(x) in s(B.foo),'
+         ' type = Class(s(int) in s(dart.core), top-level))]',
+         fooConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         fooConstructor.returnType);
+
+  MethodMirror barConstructor = constructors[#B.bar];
+  expect('Method(s(B.bar) in s(B), constructor)', barConstructor);
+  expect('[Parameter(s(z) in s(B.bar),'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(x) in s(B.bar),'
+         ' type = Type(s(dynamic), top-level))]',
+         barConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         barConstructor.returnType);
+
+  // dart2js stops testing here.
+  return;  /// 01: ok
+
+  MethodMirror bazConstructor = constructors[#B.baz];
+  expect('Method(s(B.baz) in s(B), constructor)', bazConstructor);
+  expect('[Parameter(s(x) in s(B.baz), final,'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(y) in s(B.baz),'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(z) in s(B.baz), final,'
+         ' type = Class(s(int) in s(dart.core), top-level))]',
+         bazConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         bazConstructor.returnType);
+
+  MethodMirror quxConstructor = constructors[#B.qux];
+  expect('Method(s(B.qux) in s(B), constructor)', quxConstructor);
+  expect('[Parameter(s(x) in s(B.qux),'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(y) in s(B.qux), optional,'
+         ' value = Instance(value = 4),'
+         ' type = Class(s(int) in s(dart.core), top-level))]',
+         quxConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         quxConstructor.returnType);
+
+  MethodMirror quuxConstructor = constructors[#B.quux];
+  expect('Method(s(B.quux) in s(B), constructor)', quuxConstructor);
+  expect('[Parameter(s(x) in s(B.quux),'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(str) in s(B.quux), optional, named,'
+         ' value = Instance(value = foo),'
+         ' type = Class(s(String) in s(dart.core), top-level))]',
+         quuxConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         quuxConstructor.returnType);
+
+  MethodMirror corgeConstructor = constructors[#B.corge];
+  expect('Method(s(B.corge) in s(B), constructor)', corgeConstructor);
+  expect('[Parameter(s(x) in s(B.corge), optional, named,'
+         ' value = Instance(value = 51),'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(str) in s(B.corge), optional, named,'
+         ' value = Instance(value = bar),'
+         ' type = Class(s(String) in s(dart.core), top-level))]',
+         corgeConstructor.parameters);
+  expect('Class(s(B) in s(test.parameter_test), top-level)',
+         corgeConstructor.returnType);
+
+  MethodMirror xGetter = cm.declarations[#x];
+  expect('Method(s(x) in s(B), getter)', xGetter);
+  expect('[]', xGetter.parameters);
+
+  MethodMirror xSetter = cm.declarations[const Symbol('x=')];
+  expect('Method(s(x=) in s(B), setter)', xSetter);
+  expect('[Parameter(s(value) in s(x=), final,'
+         ' type = Type(s(dynamic), top-level))]',
+         xSetter.parameters);
+
+  MethodMirror grault = cm.declarations[#grault];
+  expect('Method(s(grault) in s(B))', grault);
+  expect('[Parameter(s(x) in s(grault), optional,'
+         ' type = Class(s(int) in s(dart.core), top-level))]',
+         grault.parameters);
+  expect('Instance(value = <null>)', grault.parameters[0].defaultValue);
+
+  MethodMirror garply = cm.declarations[#garply];
+  expect('Method(s(garply) in s(B))', garply);
+  expect('[Parameter(s(y) in s(garply), optional, named,'
+         ' type = Class(s(int) in s(dart.core), top-level))]',
+         garply.parameters);
+  expect('Instance(value = <null>)', garply.parameters[0].defaultValue);
+
+  MethodMirror waldo = cm.declarations[#waldo];
+  expect('Method(s(waldo) in s(B))', waldo);
+  expect('[Parameter(s(z) in s(waldo),'
+         ' type = Class(s(int) in s(dart.core), top-level))]',
+         waldo.parameters);
+  expect('<null>', waldo.parameters[0].defaultValue);
+
+  cm = reflectClass(C);
+
+  MethodMirror fooInC = cm.declarations[#foo];
+  expect('Method(s(foo) in s(C))', fooInC);
+  expect('[Parameter(s(a) in s(foo),'
+         ' type = Class(s(int) in s(dart.core), top-level)), '
+         'Parameter(s(b) in s(foo),'
+         ' type = TypeVariable(s(S) in s(C),'
+         ' upperBound = Class(s(int) in s(dart.core), top-level)))]',
+         fooInC.parameters);
+
+  MethodMirror barInC = cm.declarations[#bar];
+  expect('Method(s(bar) in s(C))', barInC);
+  expect('[Parameter(s(a) in s(bar),'
+         ' type = TypeVariable(s(S) in s(C),'
+         ' upperBound = Class(s(int) in s(dart.core), top-level))), '
+         'Parameter(s(b) in s(bar),'
+         ' type = TypeVariable(s(T) in s(C),'
+         ' upperBound = Class(s(Object) in s(dart.core), top-level))), '
+         'Parameter(s(c) in s(bar),'
+         ' type = Class(s(num) in s(dart.core), top-level))]',
+         barInC.parameters);
+}