Johnni Winther
08b776ac47
Change-Id: Ie380dda35cbf449669eb06d18cef284915dc748e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/239305 Reviewed-by: Jens Johansen <jensj@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com>
115 lines
2.9 KiB
Dart
115 lines
2.9 KiB
Dart
// Copyright (c) 2019, 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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class Class1 {
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int field;
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Class1(this.field);
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String toString() => 'Class1($field)';
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}
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class Class2 {
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int field;
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Class2(this.field);
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String toString() => 'Class2($field)';
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}
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extension Extension1 on Class1 {
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int method() {
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print('Extension1.method on $this');
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return field;
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}
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num genericMethod<T extends num>(T t) {
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print('Extension1.genericMethod<$T>($t) on $this');
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return field + t;
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}
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int get property {
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print('Extension1.property get on $this');
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return field;
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}
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set property(int value) {
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field = value;
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print('Extension1.property set($value) on $this');
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value++;
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}
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}
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extension Extension2 on Class2 {
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int method() {
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print('Extension2.method on $this');
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return field + 3;
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}
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num genericMethod<T extends num>(T t) {
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print('Extension2.genericMethod<$T>($t) on $this');
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return field + t + 4;
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}
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int get property {
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print('Extension2.property get on $this');
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return field + 5;
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}
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set property(int value) {
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print('Extension2.property set($value) on $this');
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value++;
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field = value;
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}
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}
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main() {
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Class1 c10 = new Class1(0);
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Class1 c11 = new Class1(1);
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testExtension1(c10, c11, c10, c11);
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Class2 c20 = new Class2(0);
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Class2 c21 = new Class2(1);
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testExtension2(c20, c21, c20);
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}
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testExtension1(Class1 c0, Class1 c1, Class1? c0n, Class1? c1n) {
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expect(0, c0.method());
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expect(1, c1.method());
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expect(1, c1n?.method());
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expect(42, c0.genericMethod(42));
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expect(43, c0.genericMethod<num>(43));
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expect(88, c1.genericMethod(87));
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expect(89, c1.genericMethod<num>(88));
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expect(0, c0.property);
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expect(0, c0n?.property);
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expect(42, c0.property = 42);
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expect(1, c1.property);
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expect(87, c0.property = 87);
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expect(27, c0.property = c1.property = 27);
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expect(37, c1.property = c0.property = 37);
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expect(77, c1.property = c0.property = c1.property = 77);
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expect(67, c0.property = c1.property = c0.property = 67);
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}
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testExtension2(Class2 c0, Class2 c1, Class2? c0n) {
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expect(3, c0.method());
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expect(3, c0n?.method());
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expect(4, c1.method());
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expect(46, c0.genericMethod(42));
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expect(47, c0.genericMethod<num>(43));
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expect(92, c1.genericMethod(87));
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expect(93, c1.genericMethod<num>(88));
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expect(5, c0.property);
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expect(5, c0n?.property);
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expect(42, c0.property = 42);
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expect(48, c0.property);
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expect(6, c1.property);
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expect(43, c1.property = 43);
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expect(49, c1.property);
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expect(49, c0.property = c1.property);
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expect(55, c1.property = c0.property);
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expect(61, c1.property = c0.property = c1.property);
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expect(67, c0.property = c1.property = c0.property);
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}
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expect(expected, actual) {
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if (expected != actual) {
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throw 'Mismatch: expected=$expected, actual=$actual';
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}
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} |