在Dart中禁用print（）

Question

有没有办法禁用打印功能Dart代码或以某种方式拦截它？我们团队中的一些开发人员继续使用print而不是我们构建的记录器，这意味着我们会在控制台中看到很多垃圾，除非我们进行搜索替换并查找并替换print(String)为所有代码，否则我们无法关闭它们log.info(String)

理想情况下，我们应该使用pre-commit钩子来检查已提交的代码是否包含打印，然后拒绝提交，但是似乎仅在代码级阻止打印会更快。

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

part of dart.core;

/// Prints a string representation of the object to the console.
void print(Object object) {
  String line = "$object";
  if (printToZone == null) {
    printToConsole(line);
  } else {
    printToZone(line);
  }
}

print是的一部分dart.core，是否dart.core可以通过代码或通过某些转换器覆盖中的任何内容pubspec.yaml？

如果没有，我想是时候设置预提交的挂钩了。

Answer 1

我认为最好的解决方案是像https://github.com/dart-lang/linter/issues/88这样的linter规则

同时，您可以在新区域中运行代码并在该区域中覆盖打印方法

https://api.dartlang.org/stable/1.24.3/dart-async/ZoneSpecification-class.html https://api.dartlang.org/stable/1.24.3/dart-async/Zone/print.html https://api.dartlang.org/stable/1.24.3/dart-async/PrintHandler.html

http://jpryan.me/dartbyexample/examples/zones/

import 'dart:async';

main() {
  // All Dart programs implicitly run in a root zone.
  // runZoned creates a new zone.  The new zone is a child of the root zone.
  runZoned(() async {
    await runServer();
  },
  // Any uncaught errors in the child zone are sent to the [onError] handler.
      onError: (e, stacktrace) {
    print('caught: $e');
  },
  // a ZoneSpecification allows for overriding functionality, like print()
    zoneSpecification: new ZoneSpecification(print: (Zone self, ZoneDelegate parent, Zone zone, String message) {
      parent.print(zone, '${new DateTime.now()}: $message');
    })
  );
}