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RSX For loop

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This commit is contained in:
selimaj-dev
2026-01-25 20:12:47 +01:00
parent 993a790da7
commit 04a69b138a
2 changed files with 22 additions and 45 deletions
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examples/hello_world.rs
+4 -44
View File
@@ -40,57 +40,17 @@ fn app(cx: &Arc<Context>) -> View {
} }
}); });
// {
// cx.dyn_scope(
// {
// let count = count.clone();
// move |scope| {
// if *count.get() != 0 {
// if scope.children.lock().unwrap().len() == 0 {
// scope.child(
// my_component,
// Some(Arc::new(|ctx, view| {
// let area = ctx.allocate(5, 2, 0, 0);
// ctx.draw_view(area, view)
// })),
// );
// }
// } else {
// scope.children.lock().unwrap().clear();
// }
// }
// },
// &[&count],
// );
// }
// {
// cx.dyn_scope(
// {
// let count = count.clone();
// move |scope| {
// scope.children.lock().unwrap().clear();
// for i in 0..count.get_dl() {
// scope.view(Arc::new(move |ctx| {
// ctx.draw_text(Point { x: 0, y: i }, &format!("{i}"));
// }));
// }
// }
// },
// &[&count],
// );
// }
rsx! { rsx! {
if %count (*count.get() > 0) { if %count (*count.get() > 0) {
my_component (ctx, view) { my_component (ctx, view) {
let area = ctx.allocate(0, 1, 10, 10); let area = ctx.allocate(10, 0, 10, 10);
ctx.draw_view(area, view); ctx.draw_view(area, view);
} }
} }
%count "{count}" for %count (i in 0..count.get_dl()) {
"{i}"
}
} }
.view(cx.clone()) .view(cx.clone())
} }
src/macros.rs
+18 -1
View File
@@ -15,6 +15,23 @@ macro_rules! rsx {
#[macro_export] #[macro_export]
macro_rules! rsx_scope { macro_rules! rsx_scope {
($rsx:expr, for $(%$($dep:ident)+)? ($p:pat in $v:expr) {$($inner:tt)*} $($rest:tt)*) => {
{
$($(let $dep = $dep.clone();)+)?
$rsx.dynamic_scope({
$($(let $dep = $dep.clone();)+)?
move |scope| {
for $p in $v {
$crate::rsx_child!(scope, $($inner)*);
}
}
}, vec![$($(Box::new($dep)),+)?]);
}
$crate::rsx_scope!($rsx, $($rest)*);
};
($rsx:expr, if $(%$($dep:ident)+)? ($st:expr) {$($inner:tt)*} $($rest:tt)*) => { ($rsx:expr, if $(%$($dep:ident)+)? ($st:expr) {$($inner:tt)*} $($rest:tt)*) => {
{ {
$($(let $dep = $dep.clone();)+)? $($(let $dep = $dep.clone();)+)?
@@ -66,7 +83,7 @@ macro_rules! rsx_scope {
{ {
let scope = $crate::component::Scope::new(); let scope = $crate::component::Scope::new();
$crate::rsx_child!(scope, $component $body); $crate::rsx_child!(scope, $component);
$rsx.static_scope(scope); $rsx.static_scope(scope);
} }