directives_ordering

Adhere to Effective Dart Guide directives sorting conventions.

此规则自 Dart 2.0 版本起可用。

此规则提供快速修复。

DO follow the directive ordering conventions in Effective Dart:

DO place dart: imports before other imports.

BAD:

dartimport 'package:bar/bar.dart';
import 'package:foo/foo.dart';

import 'dart:async';  // LINT
import 'dart:html';  // LINT

BAD:

dartimport 'dart:html';  // OK
import 'package:bar/bar.dart';

import 'dart:async';  // LINT
import 'package:foo/foo.dart';

GOOD:

dartimport 'dart:async';  // OK
import 'dart:html';  // OK

import 'package:bar/bar.dart';
import 'package:foo/foo.dart';

DO place package: imports before relative imports.

BAD:

dartimport 'a.dart';
import 'b.dart';

import 'package:bar/bar.dart';  // LINT
import 'package:foo/foo.dart';  // LINT

BAD:

dartimport 'package:bar/bar.dart';  // OK
import 'a.dart';

import 'package:foo/foo.dart';  // LINT
import 'b.dart';

GOOD:

dartimport 'package:bar/bar.dart';  // OK
import 'package:foo/foo.dart';  // OK

import 'a.dart';
import 'b.dart';

DO specify exports in a separate section after all imports.

BAD:

dartimport 'src/error.dart';
export 'src/error.dart'; // LINT
import 'src/string_source.dart';

GOOD:

dartimport 'src/error.dart';
import 'src/string_source.dart';

export 'src/error.dart'; // OK

DO sort sections alphabetically.

BAD:

dartimport 'package:foo/bar.dart'; // OK
import 'package:bar/bar.dart'; // LINT

import 'a/b.dart'; // OK
import 'a.dart'; // LINT

GOOD:

dartimport 'package:bar/bar.dart'; // OK
import 'package:foo/bar.dart'; // OK

import 'a.dart'; // OK
import 'a/b.dart'; // OK

要启用 directives_ordering 规则，请在你的 analysis_options.yaml 文件中，在 linter > rules 下添加 directives_ordering ：

analysis_options.yaml
yamllinter:
  rules:
    - directives_ordering

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