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https://github.com/dart-lang/sdk
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55e34cb2b0
Bug: Change-Id: I781d22614ea06b599dd9bbe6d03f820f0cfea544 Reviewed-on: https://dart-review.googlesource.com/5482 Commit-Queue: Ben Konyi <bkonyi@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com>
131 lines
3.7 KiB
Dart
131 lines
3.7 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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// All things regarding compile time constant expressions.
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import "package:expect/expect.dart";
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abstract class Roman {
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static const I = 1;
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static const II = 2;
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static const III = 3;
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static const IV = 4;
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static const V = 5;
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static const VivaItalia = const {"green": 1, "red": 3, "white": 2};
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}
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class Point {
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static const int zero = 0;
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static const origin = const Point(0, 0);
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static const origin2 = const Point(zero, Roman.IV - 4);
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const Point(x, y)
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: x_ = x,
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y_ = y;
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const Point.X(x)
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: x_ = x,
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y_ = Roman.V - Roman.II - 3;
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bool operator ==(final dynamic other) {
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return (this.x_ == other.x_) && (this.y_ == other.y_);
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}
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final int x_, y_;
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}
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class Line {
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const Line(Point begin, Point end)
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: beg_ = begin,
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end_ = end;
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final Point beg_;
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final Point end_;
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}
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class CTConstTest {
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static int getZero() {
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return 0;
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}
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static const naught = null;
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static testMain() {
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Expect.equals(0, Point.zero);
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Expect.equals(0, Point.origin.x_);
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Expect.equals(true, identical(Point.origin, Point.origin2));
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var p1 = const Point(0, 0);
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Expect.equals(true, identical(Point.origin, p1));
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Expect.equals(false, Point.origin == const Point(1, 1));
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Expect.equals(false, identical(Point.origin, const Point(1, 1)));
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var p2 = new Point(0, getZero());
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Expect.equals(true, Point.origin == p2); // Point.operator==
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Expect.equals(true, identical(const Point.X(5), const Point(5, 0)));
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Line l1 = const Line(Point.origin, const Point(1, 1));
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Line l2 = const Line(const Point(0, 0), const Point(1, 1));
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Line l3 = new Line(const Point(0, 0), const Point(1, 1));
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Expect.equals(true, identical(l1, l2));
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final evenNumbers = const <int>[2, 2 * 2, 2 * 3, 2 * 4, 2 * 5];
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Expect.equals(true, !identical(evenNumbers, const [2, 4, 6, 8, 10]));
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final c11dGermany1 = const {"black": 1, "red": 2, "yellow": 3};
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Expect.equals(true,
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identical(c11dGermany1, const {"black": 1, "red": 2, "yellow": 3}));
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final c11dGermany2 = const {"black": 1, "red": 2, "yellow": 3};
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Expect.equals(true, identical(c11dGermany1, c11dGermany2));
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final c11dBelgium = const {"black": 1, "yellow": 2, "red": 3};
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Expect.equals(false, c11dGermany1 == c11dBelgium);
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Expect.equals(false, identical(c11dGermany1, c11dBelgium));
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final c11dItaly = const {"green": 1, "red": 3, "white": 2};
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Expect.equals(
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true, identical(c11dItaly, const {"green": 1, "red": 3, "white": 2}));
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Expect.equals(true, identical(c11dItaly, Roman.VivaItalia));
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Expect.equals(3, c11dItaly.length);
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Expect.equals(3, c11dItaly.keys.length);
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Expect.equals(true, c11dItaly.containsKey("white"));
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Expect.equals(false, c11dItaly.containsKey("black"));
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// Make sure the map object is immutable.
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bool caughtException = false;
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try {
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c11dItaly["green"] = 0;
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} on UnsupportedError catch (e) {
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caughtException = true;
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}
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Expect.equals(true, caughtException);
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Expect.equals(1, c11dItaly["green"]);
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caughtException = false;
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try {
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c11dItaly.clear();
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} on UnsupportedError catch (e) {
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caughtException = true;
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}
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Expect.equals(true, caughtException);
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Expect.equals(1, c11dItaly["green"]);
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caughtException = false;
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try {
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c11dItaly.remove("orange");
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} on UnsupportedError catch (e) {
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caughtException = true;
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}
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Expect.equals(true, caughtException);
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Expect.equals(1, c11dItaly["green"]);
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Expect.equals(true, null == naught);
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}
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}
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main() {
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CTConstTest.testMain();
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}
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