AcceptedTypes class

Used to annotate fields or parameters that have a type Object, but should only receive a known subset of types (e.g. String and int).

The intention of this annotation is to help avoid passing an incorrect or unexpected value.

For example:

void fn() {
 fn(1); // LINT
 SomeClass(false); // LINT
}

void fn(@AcceptedTypes({String, bool}) Object value) {}

class SomeClass {
 @AcceptedTypes({String, int})
 final Object field;

 const SomeClass(this.field);
}

DCM will provide feedback if an invocation receives an argument that does not match the type listed in the @AcceptedTypes().

For more information, see the documentation for "pass-correct-accepted-types".