macro_rules! pure_cell {
(
$pure_cell:expr,
$input:expr,
|$state:ident: $ty:ty, $args:ident: $argty:ty| -> $ret:ty $block:block
) => { ... };
($pure_cell:expr, $input:expr, |$state:ident: $ty:ty, $args:ident: $argty:ty| $block:block) => { ... };
}
Expand description
Main safe mechanism to mutate PureCell
via a const
expression.