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// \file src/macros.rs
//! macros for
/*
macro_rules! forward_val_val_binop {
(impl $imp:ident for $res:ty, $method:ident) => {
impl $imp<$res> for $res {
type Output = $res;
#[inline]
fn $method(self, other: $res) -> $res {
// forward to val-ref
$imp::$method(self, &other)
}
}
};
}
*/
macro_rules! forward_ref_val_binop {
(impl $imp:ident for $res:ty, $method:ident) => {
impl<'a> $imp<$res> for &'a $res {
type Output = $res;
#[inline]
fn $method(self, other: $res) -> $res {
// forward to ref-ref
$imp::$method(self, &other)
}
}
};
}
macro_rules! forward_communative_binop {
(impl $trait:ident<$t1:ty>::$method:ident for $t2:ty) => {
forward_communative_binop!(
impl $trait<$t1>::$method for $t2; Output=BigDecimal
);
};
(impl $trait:ident<$t1:ty>::$method:ident for $t2:ty; Output=$output:ty) => {
impl $trait<$t1> for $t2 {
type Output = $output;
#[inline]
fn $method(self, rhs: $t1) -> Self::Output {
// swap operands
$trait::$method(rhs, self)
}
}
};
}
/*
macro_rules! forward_val_ref_binop {
(impl $imp:ident for $res:ty, $method:ident) => {
impl<'a> $imp<&'a $res> for $res {
type Output = $res;
#[inline]
fn $method(self, other: &$res) -> $res {
// forward to ref-ref
$imp::$method(&self, other)
}
}
};
}
// Forward everything to ref-ref, when reusing storage is not helpful
macro_rules! forward_all_binop_to_ref_ref {
(impl $imp:ident for $res:ty, $method:ident) => {
forward_val_val_binop!(impl $imp for $res, $method);
forward_val_ref_binop!(impl $imp for $res, $method);
forward_ref_val_binop!(impl $imp for $res, $method);
};
}
*/