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170 lines
4.3 KiB
Dart
170 lines
4.3 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This file is used by ../analyze_snippet_code_test.dart, which depends on the
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// precise contents (including especially the comments) of this file.
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// Examples can assume:
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// bool _visible = true;
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// class _Text extends Text {
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// const _Text(super.text);
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// const _Text.__(super.text);
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// }
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/// A blabla that blabla its blabla blabla blabla.
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///
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/// Bla blabla blabla its blabla into an blabla blabla and then blabla the
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/// blabla back into the blabla blabla blabla.
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///
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/// Bla blabla of blabla blabla than 0.0 and 1.0, this blabla is blabla blabla
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/// blabla it blabla pirates blabla the blabla into of blabla blabla. Bla the
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/// blabla 0.0, the penzance blabla is blabla not blabla at all. Bla the blabla
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/// 1.0, the blabla is blabla blabla blabla an blabla blabla.
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///
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/// {@tool snippet}
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/// Bla blabla blabla some [Text] when the `_blabla` blabla blabla is true, and
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/// blabla it when it is blabla:
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///
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/// ```dart
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/// new Opacity( // error (unnecessary_new)
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/// opacity: _visible ? 1.0 : 0.0,
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/// child: const Text('Poor wandering ones!'),
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/// )
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// Bla blabla blabla some [Text] when the `_blabla` blabla blabla is true, and
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/// blabla it when it is blabla:
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///
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/// ```dart
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/// final GlobalKey globalKey = GlobalKey();
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/// ```
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///
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/// ```dart
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/// // continuing from previous example...
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/// Widget build(BuildContext context) {
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/// return Opacity(
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/// key: globalKey,
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/// opacity: _visible ? 1.0 : 0.0,
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/// child: const Text('Poor wandering ones!'),
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/// );
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/// }
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// Bla blabla blabla some [Text] when the `_blabla` blabla blabla is true, and
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/// blabla finale blabla:
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///
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/// ```dart
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/// Opacity(
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/// opacity: _visible ? 1.0 : 0.0,
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/// child: const Text('Poor wandering ones!'),
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/// )
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// regular const constructor
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///
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/// ```dart
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/// const Text('Poor wandering ones!')
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// const private constructor
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/// ```dart
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/// const _Text('Poor wandering ones!')
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// yet another const private constructor
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/// ```dart
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/// const _Text.__('Poor wandering ones!')
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// const variable
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///
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/// ```dart
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/// const Widget text0 = Text('Poor wandering ones!');
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// more const variables
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///
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/// ```dart
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/// const text1 = _Text('Poor wandering ones!'); // error (always_specify_types)
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/// ```
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/// {@end-tool}
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///
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/// {@tool snippet}
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/// Snippet with null-safe syntax
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///
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/// ```dart
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/// final String? bar = 'Hello'; // error (unnecessary_nullable_for_final_variable_declarations, prefer_const_declarations)
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/// final int foo = null; // error (invalid_assignment, prefer_const_declarations)
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/// ```
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/// {@end-tool}
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///
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/// snippet with trailing comma
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///
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/// ```dart
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/// const SizedBox(),
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/// ```
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///
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/// {@tool dartpad}
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/// Dartpad with null-safe syntax
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///
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/// ```dart
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/// final GlobalKey globalKey = GlobalKey();
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/// ```
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///
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/// ```dart
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/// // not continuing from previous example...
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/// Widget build(BuildContext context) {
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/// final String title;
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/// return Opacity(
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/// key: globalKey, // error (undefined_identifier, argument_type_not_assignable)
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/// opacity: _visible ? 1.0 : 0.0,
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/// child: Text(title), // error (read_potentially_unassigned_final)
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/// );
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/// }
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/// ```
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/// {@end-tool}
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///
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/// ```csv
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/// this,is,fine
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/// ```
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///
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/// ```dart
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/// import 'dart:io'; // error (unused_import)
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/// final Widget p = Placeholder(); // error (undefined_class, undefined_function, avoid_dynamic_calls)
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/// ```
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///
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/// ```dart
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/// // (e.g. in a stateful widget)
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/// void initState() { // error (must_call_super, annotate_overrides)
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/// widget.toString(); // error (undefined_identifier, return_of_invalid_type)
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/// }
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/// ```
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///
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/// ```dart
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/// // not in a stateful widget
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/// void initState() {
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/// widget.toString(); // error (undefined_identifier)
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/// }
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/// ```
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///
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/// ```
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/// error (something about backticks)
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/// this must be the last error, since it aborts parsing of this file
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/// ```
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String? foo;
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