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improve tracing and locks
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facile pop culture reference 2026-08-29 18:46:35 +03:00
parent 92f992e2e6
commit 8e7286e409
6 changed files with 123 additions and 47 deletions
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37
src/layout/cond.rs
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@ -1,11 +1,28 @@
use crate::*;
fn_kw_layout!(kw_when |state, output, expr| {
let thunk = draw(move|screen|ok_flat(expr.nth(2)?.map(|x|state.interpret(screen, x))));
ok_flat(matches!(expr.head()?, Some("when")).then(||{
when(state.namespace(&expr.nth(1)?)?.unwrap(), thunk).draw(output)
}))
});
pub struct When<T>(pub bool, pub T);
impl<S: Screen, T: Draw<S>> Draw<S> for When<T> {
fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
#[cfg(feature = "prof")] profiling::scope!("when");
if self.0 {
self.1.draw(to)
} else {
Ok(Default::default())
}
}
}
impl<T> When<T> {
fn_kw_layout!(interpret |state, output, expr| {
#[cfg(feature = "prof")] profiling::scope!("kw_when");
let thunk = draw(move|screen|ok_flat(expr.nth(2)?.map(|x|state.interpret(screen, x))));
ok_flat(matches!(expr.head()?, Some("when")).then(||{
when(state.namespace(&expr.nth(1)?)?.unwrap(), thunk).draw(output)
}))
});
}
/// Only render when condition is true.
///
@ -15,10 +32,11 @@ fn_kw_layout!(kw_when |state, output, expr| {
/// # }
/// ```
pub const fn when <'a, T: Screen> (condition: bool, item: impl Draw<T>) -> impl Draw<T> {
draw(move|to: &mut T|if condition { item.draw(to) } else { Ok(Default::default()) })
When(condition, item)
}
fn_kw_layout!(kw_either |state, output, expr| {
#[cfg(feature = "prof")] profiling::scope!("kw_layout");
let thunk_a = draw(move|screen|ok_flat(expr.nth(2)?.map(|x|state.interpret(screen, x))));
let thunk_b = draw(move|screen|ok_flat(expr.nth(3)?.map(|x|state.interpret(screen, x))));
ok_flat(matches!(expr.head()?, Some("either")).then(||{
@ -36,5 +54,8 @@ fn_kw_layout!(kw_either |state, output, expr| {
pub const fn either <'a, T: Screen> (
condition: bool, a: impl Draw<T>, b: impl Draw<T>
) -> impl Draw<T> {
draw(move|to: &mut T|if condition { a.draw(to) } else { b.draw(to) })
draw(move|to: &mut T|{
#[cfg(feature = "prof")] profiling::scope!("either");
if condition { a.draw(to) } else { b.draw(to) }
})
}