macros.rs

macro_rules! take_url {
    ($url:ident) => {
        match $url.take() {
            Some(url) => url,
            None => {
                return Poll::Ready(Err(Error::builder("URL already taken in Pending::Request")))
            }
        }
    };
}

macro_rules! take_err {
    ($err:ident) => {
        match $err.take() {
            Some(err) => err,
            None => Error::builder("Error already taken in Error"),
        }
    };
}

macro_rules! apply_option {
    ($self:expr, $emulation:expr, $(($field:ident, $method:ident)),*) => {
        $(
            if let Some(value) = $emulation.$field {
                $self = $self.$method(value);
            }
        )*
    };
}