mirror of
https://github.com/dart-lang/sdk
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8fd6d0aafd
Committed: https://code.google.com/p/dart/source/detail?r=19755 Reverted: http://code.google.com/p/dart/source/detail?r=19756 Review URL: https://codereview.chromium.org//12212016 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20996 260f80e4-7a28-3924-810f-c04153c831b5
72 lines
1.4 KiB
Dart
72 lines
1.4 KiB
Dart
// Copyright (c) 2012, 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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import "package:expect/expect.dart";
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// Test cascades.
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class A {
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int x;
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int y;
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A(this.x, this.y);
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A setX(int x) { this.x = x; return this; }
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void setY(int y) { this.y = y; }
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Function swap() {
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int tmp = x;
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x = y;
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y = tmp;
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return this.swap;
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}
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void check(int x, int y) {
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Expect.equals(x, this.x);
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Expect.equals(y, this.y);
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}
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operator[](var i) {
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if (i == 0) return x;
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if (i == 1) return y;
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if (i == "swap") return this.swap;
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return null;
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}
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int operator[]=(int i, int value) {
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if (i == 0) {
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x = value;
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} else if (i == 1) {
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y = value;
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}
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}
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/**
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* A pseudo-keyword.
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*/
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import() {
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x++;
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}
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}
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main() {
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A a = new A(1, 2);
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a..check(1, 2)
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..swap()..check(2, 1)
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..x = 4..y = 9..check(4, 9)
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..setX(10)..check(10, 9)
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..y = 5..check(10, 5)
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..swap()()()..check(5, 10)
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..[0] = 2..check(2, 10)
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..setX(10).setY(3)..check(10, 3)
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..setX(7)["swap"]()..check(3, 7)
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..import()..check(4, 7)
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..["swap"]()()()..check(7, 4);
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a.check(7,4);
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a..(42); /// 01: compile-time error
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a..37; /// 02: compile-time error
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a.."foo"; /// 03: compile-time error
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}
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