#[macro_export]
macro_rules! bson {
(@array [$($elems:expr,)*]) => {
vec![$($elems,)*]
};
(@array [$($elems:expr),*]) => {
vec![$($elems),*]
};
(@array [$($elems:expr,)*] null $($rest:tt)*) => {
$crate::bson!(@array [$($elems,)* $crate::bson!(null)] $($rest)*)
};
(@array [$($elems:expr,)*] [$($array:tt)*] $($rest:tt)*) => {
$crate::bson!(@array [$($elems,)* $crate::bson!([$($array)*])] $($rest)*)
};
(@array [$($elems:expr,)*] {$($map:tt)*} $($rest:tt)*) => {
$crate::bson!(@array [$($elems,)* $crate::bson!({$($map)*})] $($rest)*)
};
(@array [$($elems:expr,)*] $next:expr, $($rest:tt)*) => {
$crate::bson!(@array [$($elems,)* $crate::bson!($next),] $($rest)*)
};
(@array [$($elems:expr,)*] $last:expr) => {
$crate::bson!(@array [$($elems,)* $crate::bson!($last)])
};
(@array [$($elems:expr),*] , $($rest:tt)*) => {
$crate::bson!(@array [$($elems,)*] $($rest)*)
};
(@object $object:ident () () ()) => {};
(@object $object:ident [$($key:tt)+] ($value:expr) , $($rest:tt)*) => {
$object.insert::<_, $crate::Bson>(($($key)+), $value);
$crate::bson!(@object $object () ($($rest)*) ($($rest)*));
};
(@object $object:ident [$($key:tt)+] ($value:expr)) => {
$object.insert::<_, $crate::Bson>(($($key)+), $value);
};
(@object $object:ident ($($key:tt)+) (: null $($rest:tt)*) $copy:tt) => {
$crate::bson!(@object $object [$($key)+] ($crate::bson!(null)) $($rest)*);
};
(@object $object:ident ($($key:tt)+) (: [$($array:tt)*] $($rest:tt)*) $copy:tt) => {
$crate::bson!(@object $object [$($key)+] ($crate::bson!([$($array)*])) $($rest)*);
};
(@object $object:ident ($($key:tt)+) (: {$($map:tt)*} $($rest:tt)*) $copy:tt) => {
$crate::bson!(@object $object [$($key)+] ($crate::bson!({$($map)*})) $($rest)*);
};
(@object $object:ident ($($key:tt)+) (: $value:expr , $($rest:tt)*) $copy:tt) => {
$crate::bson!(@object $object [$($key)+] ($crate::bson!($value)) , $($rest)*);
};
(@object $object:ident ($($key:tt)+) (: $value:expr) $copy:tt) => {
$crate::bson!(@object $object [$($key)+] ($crate::bson!($value)));
};
(@object $object:ident ($($key:tt)+) (:) $copy:tt) => {
$crate::bson!();
};
(@object $object:ident ($($key:tt)+) () $copy:tt) => {
$crate::bson!();
};
(@object $object:ident () (: $($rest:tt)*) ($kv_separator:tt $($copy:tt)*)) => {
unimplemented!($kv_separator);
};
(@object $object:ident ($($key:tt)*) (, $($rest:tt)*) ($comma:tt $($copy:tt)*)) => {
unimplemented!($comma);
};
(@object $object:ident () (($key:expr) : $($rest:tt)*) $copy:tt) => {
$crate::bson!(@object $object ($key) (: $($rest)*) (: $($rest)*));
};
(@object $object:ident ($($key:tt)*) ($tt:tt $($rest:tt)*) $copy:tt) => {
$crate::bson!(@object $object ($($key)* $tt) ($($rest)*) ($($rest)*));
};
(null) => {
$crate::Bson::Null
};
([]) => {
$crate::Bson::Array(vec![])
};
([ $($tt:tt)+ ]) => {
$crate::Bson::Array($crate::bson!(@array [] $($tt)+))
};
({}) => {
$crate::Bson::Document($crate::doc!{})
};
({$($tt:tt)+}) => {
$crate::Bson::Document($crate::doc!{$($tt)+})
};
($other:expr) => {
$crate::Bson::from($other)
};
}
#[macro_export]
macro_rules! doc {
() => {{ $crate::Document::new() }};
( $($tt:tt)+ ) => {{
let mut object = $crate::Document::new();
$crate::bson!(@object object () ($($tt)+) ($($tt)+));
object
}};
}