Lasse R.H. Nielsen
ef8cc2c1cf
As per planned breaking change to let platforms decide how they and what throw for late initiaization errors, we no longer need a public `LateInitializationError` class. It's confusing to have one if some platforms throw something else instead. Removes the public abstract class. The dart:_internal implementation class `LateError` no longer implements it. This is the only implementation of the public interface, and the class which platforms either throw directly, or through front-end lowering of the feature. Remove mentions in tests. All tests now just expect `Error`, some platform specific tests might test the message. TEST=rewrote tests referring to LateInitializationError. Change-Id: I54344a67f89ce101ed770412db134e12354cdcc4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174928 Commit-Queue: Lasse R.H. Nielsen <lrn@google.com> Reviewed-by: Nate Bosch <nbosch@google.com>
104 lines
2.6 KiB
Dart
104 lines
2.6 KiB
Dart
// Copyright (c) 2020, 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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// @dart=2.8
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dynamic lastInit;
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T init<T>(T value) {
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lastInit = value;
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return value;
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}
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const int constTopLevelField = 324;
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int topLevelFieldWithoutInitializer;
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int topLevelFieldWithInitializer1 = init(42);
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int topLevelFieldWithInitializer2 = init(42);
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final int finalTopLevelFieldWithInitializer1 = init(87);
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int finalTopLevelFieldWithInitializer2Init = 0;
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final int finalTopLevelFieldWithInitializer2 =
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finalTopLevelFieldWithInitializer2Init++ == 0
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? finalTopLevelFieldWithInitializer2 + 1
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: 87;
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class Class {
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static const int staticConstField = 123;
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int instanceFieldWithInitializer = init(55);
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static int staticFieldWithoutInitializer;
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static int staticFieldWithInitializer1 = init(55);
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static int staticFieldWithInitializer2 = init(55);
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static final int staticFinalFieldWithInitializer1 = init(73);
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static int staticFinalFieldWithInitializer2Init = 0;
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static final int staticFinalFieldWithInitializer2 =
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staticFinalFieldWithInitializer2Init++ == 0
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? staticFinalFieldWithInitializer2 + 1
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: 87;
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}
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main() {
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expect(null, lastInit);
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expect(null, topLevelFieldWithoutInitializer);
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expect(324, constTopLevelField);
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expect(null, Class.staticFieldWithoutInitializer);
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expect(123, Class.staticConstField);
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expect(42, topLevelFieldWithInitializer1);
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expect(42, lastInit);
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topLevelFieldWithInitializer2 = 56;
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expect(42, lastInit);
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expect(56, topLevelFieldWithInitializer2);
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expect(42, lastInit);
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expect(87, finalTopLevelFieldWithInitializer1);
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expect(87, lastInit);
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throws(() => finalTopLevelFieldWithInitializer2,
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'Read finalTopLevelFieldWithInitializer2');
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expect(55, Class.staticFieldWithInitializer1);
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expect(55, lastInit);
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Class.staticFieldWithInitializer2 = 63;
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expect(55, lastInit);
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expect(63, Class.staticFieldWithInitializer2);
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expect(55, lastInit);
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expect(73, Class.staticFinalFieldWithInitializer1);
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expect(73, lastInit);
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throws(() => Class.staticFinalFieldWithInitializer2,
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'Read staticFinalFieldWithInitializer2');
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var c = new Class();
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expect(55, lastInit);
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expect(55, c.instanceFieldWithInitializer);
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}
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expect(expected, actual) {
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if (expected != actual) throw 'Expected $expected, actual $actual';
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}
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throws(f(), String message) {
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dynamic value;
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try {
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value = f();
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} catch (e) {
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print(e);
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return;
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}
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throw '$message: $value';
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}
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