Is there any way to have a function that can take any function and its argument and call it?
#Function that can call any function
real hare
gritty egret
yes if their signatures match
lilac shadow
func dosomething(i int, f func(int)) {
f(i)
}
func multiply(i int): int {
return i * 2
}
func main() {
dosomething(2, multiply)
}
frozen cedar
Is there any way to have a function that can take any function and its argument ...
you can use reflect.Value.Call and reflect.Value.CallSlice, though I would strongly caution against their use unless you are extremely experienced.
real hare
Yea I meant using reflect to find out the function type and calling the function using the variadic slice of interface
func dosomething(f interface{}, args ...interface{}) {
something like this
I can always work around it by using
func dosomething(f func())
and just pass in a closure that just calls the function but was wondering if there was any other way to do it
gritty egret
well if we're talking reflect you can use reflect.Type's NumIn()/NumOut() with In()/Out() to get input args/output values and IsVariadic for variadic checks and then use reflect.Value.Call(Slice) as mentioned above. Sounds doable but I personally only worked with In/Out