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4ebab25d8f
One detail that isn't implemented yet is canonicalization of constructor tear-offs. At the moment, two tear-offs of the same constructor result in closures that are not equal. BUG= R=regis@google.com Review URL: https://codereview.chromium.org//1255063005 .
81 lines
1.7 KiB
Dart
81 lines
1.7 KiB
Dart
// Copyright (c) 2015, 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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// Basic test for tear-off constructor closures.
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import "package:expect/expect.dart";
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class A {
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// Implicit constructor A();
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var f1 = "A.f1";
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}
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class P {
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var x, y;
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P(this.x, this.y);
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factory P.origin() { return new P(0,0); }
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factory P.ursprung() = P.origin;
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P.onXAxis(x) : this(x, 0);
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}
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class C<T> {
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T f1;
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C(T p) : f1 = p;
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C.n([T p]) : f1 = p;
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listMaker() { return new List<T>#; } // Closurize type parameter.
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}
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testMalformed() {
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Expect.throws(() => new NoSuchClass#);
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Expect.throws(() => new A#noSuchContstructor);
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}
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testA() {
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var cc = new A#; // Closurize implicit constructor.
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var o = cc();
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Expect.equals("A.f1", o.f1);
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Expect.equals("A.f1", (new A#)().f1);
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Expect.throws(() => new A#foo);
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}
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testP() {
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var cc = new P#origin;
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var o = cc();
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Expect.equals(0, o.x);
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cc = new P#ursprung;
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o = cc();
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Expect.equals(0, o.x);
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cc = new P#onXAxis;
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o = cc(5);
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Expect.equals(0, o.y);
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Expect.equals(5, o.x);
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Expect.throws(() => cc(1, 1)); // Too many arguments.
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}
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testC() {
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var cc = new C<int>#;
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var o = cc(5);
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Expect.equals("int", "${o.f1.runtimeType}");
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Expect.throws(() => cc()); // Missing constructor parameter.
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cc = new C<String>#n;
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o = cc("foo");
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Expect.equals("String", "${o.f1.runtimeType}");
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o = cc();
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Expect.equals(null, o.f1);
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cc = o.listMaker();
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Expect.isTrue(cc is Function);
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var l = cc();
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Expect.equals("List<String>", "${l.runtimeType}");
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}
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main() {
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testA();
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testC();
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testP();
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testMalformed();
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}
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