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Breaking change: improving the clone macro

This commit is contained in:
Pauan 2018-03-08 03:51:14 -10:00
parent 5055439fed
commit 3e7a1bab10
1 changed files with 16 additions and 5 deletions
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21
src/macros.rs
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@ -5,7 +5,7 @@ macro_rules! html {
};
($kind:expr => $t:ty, { $( $name:ident( $( $args:expr ),* ); )* }) => {{
let a: $crate::HtmlBuilder<$t> = $crate::HtmlBuilder::new($kind)$(.$name($($args),*))*;
let b: $crate::Dom = a.into();
let b: $crate::Dom = ::std::convert::Into::into(a);
b
}};
@ -39,11 +39,22 @@ macro_rules! class {
}
// TODO move into stdweb
// TODO this is pretty inefficient, it iterates over the token tree one token at a time
#[doc(hidden)]
#[macro_export]
macro_rules! clone {
({$($x:ident),+} $y:expr) => {{
$(let $x = $x.clone();)+
macro_rules! __internal_clone_split {
(($($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)*) => {
__internal_clone_split!(($($x)* $t), $($after)*)
};
}
// TODO move into stdweb ?
#[macro_export]
macro_rules! clone {
($($input:tt)*) => { __internal_clone_split!((), $($input)*) };
}