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wip: directionalize!

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can't fit all into 1 trait because of directionality
of trait implementation rules and constraints :(
This commit is contained in:
🪞👃🪞 2025-05-20 18:48:55 +03:00
parent f797a7143d
commit 7c1cddc759
10 changed files with 221 additions and 222 deletions
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13
output/src/ops/align.rs
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@ -36,20 +36,17 @@ pub enum Alignment { #[default] Center, X, Y, NW, N, NE, E, SE, S, SW, W }
pub struct Align<A>(Alignment, A);
#[cfg(feature = "dsl")]
impl<'state, E: Output + 'state, T: ViewContext<'state, E>>
Dsl<T> for Align<RenderBox<'state, E>> {
fn take_from <'source: 'state> (state: &'state T, iter: &mut TokenIter<'source>) -> Perhaps<Self> {
impl<State: Dsl<A>, A> FromDsl<State> for Align<A> {
fn take_from <'state, 'source: 'state> (state: &'state State, iter: &mut TokenIter<'source>)
-> Perhaps<Self>
{
if let Some(Token { value: Value::Key(key), .. }) = iter.peek() {
match key {
"align/c"|"align/x"|"align/y"|
"align/n"|"align/s"|"align/e"|"align/w"|
"align/nw"|"align/sw"|"align/ne"|"align/se" => {
let _ = iter.next().unwrap();
let content = if let Some(content) = state.get_content(&mut iter.clone())? {
content
} else {
panic!("no content corresponding to {:?}", &iter);
};
let content = state.take_or_fail(&mut iter.clone(), "expected content")?;
return Ok(Some(match key {
"align/c" => Self::c(content),
"align/x" => Self::x(content),