Silencing the warning

[nikans]

When there's no need to store the result of the last .on(:_,:_) function call, the warning is raised. Fixed that. Looks like in most cases this behaviour is more practical.

[totocaster]

Hi @nikans, thanks for submitting PR! Before we proceed, can I ask in what case do you get warnings that is not one of following?

1. The .on(:_,:_) chain is not assigned to a variable, e.i. has no reference; or
2. No .start() is called at the end of the chain or reference Typist object.

[nikans]

Hi @totocaster,
basically, both. I first assign an instance variable for Typist

let keyboard = Typist()

then configure the keyboard with code like this

keyboard
    .on(event: _) { ... }
    .on(event: _) { ... }

and then call .start() when the view is ready to listen for events.
Since .on(:_,:_) returns Self and it is non-discardable, a warning is raised.

[totocaster]

Gotcha, fair!