Macro elrond_wasm::only_owner

macro_rules! only_owner {
    ($trait_self: expr, $error_msg:expr) => { ... };
}

👎Deprecated since 0.26.0: Replace with the #[only_owner] attribute that can be placed on an endpoint. That one is more compact and shows up in the ABI.

Very compact way of not allowing anyone but the owner to call a function.

It can only be used in a function that returns SCResult<_> where _ can be any type.

fn only_callable_by_owner(&self) -> SCResult<()> {
    only_owner!(self, "Caller must be owner");
    Ok(())
}