implicit_call_tearoffs

Explicitly tear-off call methods when using an object as a Function.

此规则自 Dart 2.19 版本起可用。

_规则集：core , recommended , flutter _

此规则提供 快速修复 。

DO Explicitly tear off .call methods from objects when assigning to a Function type. There is less magic with an explicit tear off. Future language versions may remove the implicit call tear off.

BAD:

class Callable {
  void call() {}
}
void callIt(void Function() f) {
  f();
}

callIt(Callable());

GOOD:

class Callable {
  void call() {}
}
void callIt(void Function() f) {
  f();
}

callIt(Callable().call);

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

linter:
  rules:
    - implicit_call_tearoffs

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