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