I use type switches in Go, e.g. the following one:
switch question.(type) {
case interfaces.ComputedQuestion:
handleComputedQuestion(question.(interfaces.ComputedQuestion), symbols)
case interfaces.InputQuestion:
handleInputQuestion(question.(interfaces.InputQuestion), symbols)
}
Is there a way to prevent that I have to assert the type of question inside the case before I can pass it to another function?
Yes, assigning the result of the type switch will give you the asserted type
switch question := question.(type) {
case interfaces.ComputedQuestion:
handleComputedQuestion(question, symbols)
case interfaces.InputQuestion:
handleInputQuestion(question, symbols)
}