Function JoinHandlers

context/handler.go:351–369

JoinHandlers returns a copy of "h1" and "h2" Handlers slice joined as one slice of Handlers.

(h1 Handlers, h2 Handlers)

// JoinHandlers returns a copy of "h1" and "h2" Handlers slice joined as one slice of Handlers.
func JoinHandlers(h1 Handlers, h2 Handlers) Handlers {
	if len(h1) == 0 {
		return h2
	}

	if len(h2) == 0 {
		return h1
	}

	nowLen := len(h1)
	totalLen := nowLen + len(h2)
	// create a new slice of Handlers in order to merge the "h1" and "h2"
	newHandlers := make(Handlers, totalLen)
	// copy the already Handlers to the just created
	copy(newHandlers, h1)
	// start from there we finish, and store the new Handlers too
	copy(newHandlers[nowLen:], h2)
	return newHandlers
}

// UpsertHandlers like `JoinHandlers` but it does
// NOT copies the handlers entries and it does remove duplicates.