Is there any hard and fast rule of when to declare functions as inline and when not declare inline

# announcements

[Hexa]

Is there any hard and fast rule of when to declare functions as inline and when not declare inline

[karelpeeters]

If they're small and have a function parameter yes, otherwise no.

[karelpeeters]

And reified type parameters of course, you don't even have a choice there.

[Marc Knaup]

And if you pass a lambda which is executed immediately.

[streetsofboston]

One reason to make a function that take a lambda an inline function is to support suspend functions better.

If your function or its lambda paramter is not inline, the body of the lambda on the call-site is not ’suspend’able. This means, you can’t call suspend functions in the lambda.

If you function and its lambda parameter are inline, the lambda provided by the calling code (on the call-site) is still suspendable, ie it can call suspend functions.