Fix issue 11705: deal with user-defined Function classes that override noSuchMethod, and are being …

tests/corelib/apply3_test.dart

Index: tests/corelib/apply3_test.dart
===================================================================
--- tests/corelib/apply3_test.dart	(revision 0)
+++ tests/corelib/apply3_test.dart	(revision 0)
@@ -0,0 +1,69 @@
+// 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.
+
+// Test [Function.apply] on user-defined classes that implement [noSuchMethod].
+
+import "package:expect/expect.dart";
+import 'dart:mirrors';
+
+class F {
+  call([p1]) => "call";
+  noSuchMethod(Invocation invocation) => "NSM";
+}
+
+class G {
+  call() => '42';
+  noSuchMethod(Invocation invocation) => invocation;
+}
+
+class H {
+  call(required, {a}) => required + a;
+}
+
+main() {
+  Expect.equals('call', Function.apply(new F(), []));
+  Expect.equals('call', Function.apply(new F(), [1]));
+  Expect.equals('NSM', Function.apply(new F(), [1, 2]));
+  Expect.equals('NSM', Function.apply(new F(), [1, 2, 3]));
+
+  var symbol = const Symbol('a');
+  var requiredParameters = [1];
+  var optionalParameters = new Map()..[symbol] = 42;
+  Invocation i = Function.apply(
+      new G(), requiredParameters, optionalParameters);
+
+  Expect.equals(const Symbol('call'), i.memberName);
+  Expect.listEquals(requiredParameters, i.positionalArguments);
+  Expect.mapEquals(optionalParameters, i.namedArguments);
+  Expect.isTrue(i.isMethod);
+  Expect.isFalse(i.isGetter);
+  Expect.isFalse(i.isSetter);
+  Expect.isFalse(i.isAccessor);
+
+  // Check that changing the passed list and map for parameters does
+  // not affect [i].
+  requiredParameters[0] = 42;
+  optionalParameters[symbol] = 12;
+  Expect.listEquals([1], i.positionalArguments);
+  Expect.mapEquals(new Map()..[symbol] = 42, i.namedArguments);
+
+  // Check that using [i] for invocation yields the same [Invocation]
+  // object.
+  var mirror = reflect(new G());
+  Invocation other = mirror.delegate(i);
+  Expect.equals(i.memberName, other.memberName);
+  Expect.listEquals(i.positionalArguments, other.positionalArguments);
+  Expect.mapEquals(i.namedArguments, other.namedArguments);
+  Expect.equals(i.isMethod, other.isMethod);
+  Expect.equals(i.isGetter, other.isGetter);
+  Expect.equals(i.isSetter, other.isSetter);
+  Expect.equals(i.isAccessor, other.isAccessor);
+
+  // Test that [i] can be used to hit an existing method.
+  Expect.equals(43, new H().call(1, a: 42));
+  Expect.equals(43, Function.apply(new H(), [1], new Map()..[symbol] = 42));
+  mirror = reflect(new H());
+  Expect.equals(43, mirror.delegate(i));
+  Expect.equals(43, mirror.delegate(other));
+}