implicit_call_tearoffs

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

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);

To enable the implicit_call_tearoffs rule, add implicit_call_tearoffs under linter > rules in your analysis_options.yaml file:

linter:
  rules:
    - implicit_call_tearoffs

If you're instead using the YAML map syntax to configure linter rules, add implicit_call_tearoffs: true under linter > rules:

linter:
  rules:
    implicit_call_tearoffs: true

除非另有说明，文档之所提及适用于 Dart 3.7.1 版本，本页面最后更新时间: 2025-01-27。 查看文档源码 或者 报告页面问题。