ngeoffray@google.com
3b2c97ae08
R=ahe@google.com Review URL: https://codereview.chromium.org//19101002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24950 260f80e4-7a28-3924-810f-c04153c831b5
70 lines
2.4 KiB
Dart
70 lines
2.4 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Test [Function.apply] on user-defined classes that implement [noSuchMethod].
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import "package:expect/expect.dart";
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import 'dart:mirrors';
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class F {
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call([p1]) => "call";
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noSuchMethod(Invocation invocation) => "NSM";
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}
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class G {
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call() => '42';
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noSuchMethod(Invocation invocation) => invocation;
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}
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class H {
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call(required, {a}) => required + a;
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}
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main() {
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Expect.equals('call', Function.apply(new F(), []));
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Expect.equals('call', Function.apply(new F(), [1]));
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Expect.equals('NSM', Function.apply(new F(), [1, 2]));
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Expect.equals('NSM', Function.apply(new F(), [1, 2, 3]));
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var symbol = const Symbol('a');
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var requiredParameters = [1];
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var optionalParameters = new Map()..[symbol] = 42;
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Invocation i = Function.apply(
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new G(), requiredParameters, optionalParameters);
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Expect.equals(const Symbol('call'), i.memberName);
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Expect.listEquals(requiredParameters, i.positionalArguments);
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Expect.mapEquals(optionalParameters, i.namedArguments);
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Expect.isTrue(i.isMethod);
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Expect.isFalse(i.isGetter);
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Expect.isFalse(i.isSetter);
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Expect.isFalse(i.isAccessor);
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// Check that changing the passed list and map for parameters does
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// not affect [i].
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requiredParameters[0] = 42;
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optionalParameters[symbol] = 12;
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Expect.listEquals([1], i.positionalArguments);
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Expect.mapEquals(new Map()..[symbol] = 42, i.namedArguments);
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// Check that using [i] for invocation yields the same [Invocation]
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// object.
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var mirror = reflect(new G());
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Invocation other = mirror.delegate(i);
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Expect.equals(i.memberName, other.memberName);
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Expect.listEquals(i.positionalArguments, other.positionalArguments);
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Expect.mapEquals(i.namedArguments, other.namedArguments);
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Expect.equals(i.isMethod, other.isMethod);
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Expect.equals(i.isGetter, other.isGetter);
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Expect.equals(i.isSetter, other.isSetter);
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Expect.equals(i.isAccessor, other.isAccessor);
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// Test that [i] can be used to hit an existing method.
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Expect.equals(43, new H().call(1, a: 42));
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Expect.equals(43, Function.apply(new H(), [1], new Map()..[symbol] = 42));
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mirror = reflect(new H());
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Expect.equals(43, mirror.delegate(i));
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Expect.equals(43, mirror.delegate(other));
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}
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