rust-dominator/src/macros.rs

76 lines
2.1 KiB
Rust

#[macro_export]
macro_rules! builder {
($namespace:expr, $default:ty, $kind:expr => $t:ty) => {
$crate::builder!($namespace, $default, $kind => $t, {})
};
($namespace:expr, $default:ty, $kind:expr => $t:ty, { $(.$name:ident($($args:expr),*))* }) => {{
let a: $crate::DomBuilder<$t> = $crate::DomBuilder::new($crate::create_element_ns($kind, $namespace));
let b = a$(.$name($($args),*))*;
let c: $crate::Dom = $crate::DomBuilder::into_dom(b);
c
}};
($namespace:expr, $default:ty, $kind:expr) => {
$crate::builder!($namespace, $default, $kind => $default)
};
($namespace:expr, $default:ty, $kind:expr, { $(.$name:ident($($args:expr),*))* }) => {
$crate::builder!($namespace, $default, $kind => $default, { $(.$name($($args),*))* })
};
}
#[macro_export]
macro_rules! html {
($($args:tt)+) => {
$crate::builder!($crate::HTML_NAMESPACE, $crate::HtmlElement, $($args)+)
};
}
#[macro_export]
macro_rules! svg {
($($args:tt)+) => {
$crate::builder!($crate::SVG_NAMESPACE, $crate::SvgElement, $($args)+)
};
}
#[macro_export]
macro_rules! stylesheet {
($rule:expr) => {
$crate::stylesheet!($rule, {})
};
($rule:expr, { $(.$name:ident($($args:expr),*))* }) => {
$crate::StylesheetBuilder::new($rule)$(.$name($($args),*))*.done()
};
}
#[macro_export]
macro_rules! class {
($(.$name:ident($($args:expr),*))*) => {
$crate::ClassBuilder::new()$(.$name($($args),*))*.done()
};
}
// TODO this is pretty inefficient, it iterates over the token tree one token at a time
#[doc(hidden)]
#[macro_export]
macro_rules! __internal_clone_split {
(($($x:ident)*), $t:ident => $y:expr) => {{
$(let $x = ::std::clone::Clone::clone(&$x);)*
let $t = ::std::clone::Clone::clone(&$t);
$y
}};
(($($x:ident)*), $t:ident, $($after:tt)*) => {
$crate::__internal_clone_split!(($($x)* $t), $($after)*)
};
}
// TODO move into gloo ?
#[macro_export]
macro_rules! clone {
($($input:tt)*) => { $crate::__internal_clone_split!((), $($input)*) };
}