What is the preferred naming style for a factory f...

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[Arkadii Ivanov]

What is the preferred naming style for a factory function? Is it better to start names from uppercase or lowercase letters? I have found the following in Kotlin Coding Conventions:

Exception: factory functions used to create instances of classes can have the same name as the class being created

But what is the recommended style?

[Nikky]

as a factory function i usually put invoke on the companion object

[Arkadii Ivanov]

Thanks but I don't really like such an approach because: 1. such overloaded invoke operators do not appear in auto-complete, 2. you don't always have access to a class/interface, 3. I don't like to pollute interfaces with any implementation details. Currently I prefer to put factory functions into a separate file but struggling with naming. That's why I raised this question.

[karelpeeters]

If they don't do a lot of work and have functionality obvious from the signature I think having top level functions with the same name is fine. If they need a better name or do IO or something like that I'd given them better names.