Kallen Tu
222947daa2
Tests the following: - Optional/named parameters for extension type primary constructors. - We should still produce an error when there's a body on a const constructor. - Inferring `Object?` as the representation type when the type isn't specified. - We can omit the type of an optional parameter with a default value, in which case, the type is inferred from the default value. Bug: https://github.com/dart-lang/sdk/issues/61687 Change-Id: Id10fb3f3a14cf683601f52b0b3182a10d0730927 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/465801 Commit-Queue: Kallen Tu <kallentu@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
88 lines
2.2 KiB
Dart
88 lines
2.2 KiB
Dart
// Copyright (c) 2025, 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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// A basic declaring header constructor.
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// SharedOptions=--enable-experiment=primary-constructors
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import 'package:expect/expect.dart';
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class Point(var int x, var int y);
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class PointFinal(final int x, final int y);
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// Constant constructors.
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class const CConst(final int x);
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extension type const ExtConst(final int x);
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enum const EnumConst(final int x) {
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e(1);
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}
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// Initializing parameters.
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class CInitParameters(this.y) {
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late int y;
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}
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// Super parameters.
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class C1(final int y);
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class CSuperParameters(final int x, super.y) extends C1;
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// Named parameters (regular and required).
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class CNamedParameters({final int x = 1, required var int y});
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enum EnumNamedParameters({final int x = 1, required var int y}) {
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e(x: 2, y: 3), f(y: 3);
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}
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// Optional parameters.
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class COptionalParameters([final int x = 1, var int y = 2]);
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enum EnumOptionalParameters([final int x = 1, var int y = 2]) {
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e(3, 4), f(3), g();
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}
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void main() {
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var p1 = Point(1, 2);
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Expect.equals(1, p1.x);
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Expect.equals(2, p1.y);
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p1.x = 3;
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Expect.equals(3, p1.x);
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var p2 = PointFinal(3, 4);
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Expect.equals(3, p2.x);
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Expect.equals(4, p2.y);
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Expect.equals(1, const CConst(1).x);
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Expect.equals(1, const ExtConst(1).x);
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Expect.equals(1, EnumConst.e.x);
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Expect.equals(1, CInitParameters(1).y);
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Expect.equals(1, CSuperParameters(1, 2).x);
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Expect.equals(2, CSuperParameters(1, 2).y);
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Expect.equals(1, CNamedParameters(y: 2).x);
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Expect.equals(2, CNamedParameters(y: 2).y);
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Expect.equals(2, EnumNamedParameters.e.x);
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Expect.equals(3, EnumNamedParameters.e.y);
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Expect.equals(1, EnumNamedParameters.f.x);
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Expect.equals(3, EnumNamedParameters.f.y);
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Expect.equals(1, COptionalParameters().x);
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Expect.equals(2, COptionalParameters().y);
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Expect.equals(3, EnumOptionalParameters.e.x);
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Expect.equals(4, EnumOptionalParameters.e.y);
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Expect.equals(3, EnumOptionalParameters.f.x);
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Expect.equals(2, EnumOptionalParameters.f.y);
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Expect.equals(1, EnumOptionalParameters.g.x);
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Expect.equals(2, EnumOptionalParameters.g.y);
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}
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