How to declare a generic operator in strong Dart mode?

Question

Dart allows me to declare common methods, for example. T first<T>(List<T> ts). But how can I declare a generic type for methods that are operators, for example operator |? Is there any syntax for this (and documented it somewhere)?

Answer 1

Dart operators cannot be shared.

The main reason is the lack of syntax to provide type. Using a generic method, you can call it as o.foo<int>(...)to explicitly pass a type argument. Cannot be placed <int>in a statement (no, we do not want to allow x+<int>42, which just reads horribly!)

, , . , ( ), .

Answer 2

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"" : https://github.com/dart-lang/sdk/issues/30048