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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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29
output/src/ops/bsp.rs
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@ -21,9 +21,8 @@ impl<E: Output, A: Content<E>, B: Content<E>> Content<E> for Bsp<A, B> {
}
}
#[cfg(feature = "dsl")]
impl<'state, E: Output + 'state, T: ViewContext<'state, E>>
Dsl<T> for Bsp<RenderBox<'state, E>, RenderBox<'state, E>> {
fn take_from <'source: 'state> (state: &'state T, iter: &mut TokenIter<'source>) -> Perhaps<Self> {
impl<A, B, T: Dsl<A> + Dsl<B>> FromDsl<T> for Bsp<A, B> {
fn take_from <'state, 'source: 'state> (state: &'state T, iter: &mut TokenIter<'source>) -> Perhaps<Self> {
Ok(if let Some(Token {
value: Value::Key("bsp/n"|"bsp/s"|"bsp/e"|"bsp/w"|"bsp/a"|"bsp/b"),
..
@ -31,23 +30,23 @@ Dsl<T> for Bsp<RenderBox<'state, E>, RenderBox<'state, E>> {
let base = iter.clone();
return Ok(Some(match iter.next() {
Some(Token { value: Value::Key("bsp/n"), .. }) =>
Self::n(state.get_content_or_fail(iter)?,
state.get_content_or_fail(iter)?),
Self::n(state.take_or_fail(iter, "expected content 1")?,
state.take_or_fail(iter, "expected content 2")?),
Some(Token { value: Value::Key("bsp/s"), .. }) =>
Self::s(state.get_content_or_fail(iter)?,
state.get_content_or_fail(iter)?),
Self::s(state.take_or_fail(iter, "expected content 1")?,
state.take_or_fail(iter, "expected content 2")?),
Some(Token { value: Value::Key("bsp/e"), .. }) =>
Self::e(state.get_content_or_fail(iter)?,
state.get_content_or_fail(iter)?),
Self::e(state.take_or_fail(iter, "expected content 1")?,
state.take_or_fail(iter, "expected content 2")?),
Some(Token { value: Value::Key("bsp/w"), .. }) =>
Self::w(state.get_content_or_fail(iter)?,
state.get_content_or_fail(iter)?),
Self::w(state.take_or_fail(iter, "expected content 1")?,
state.take_or_fail(iter, "expected content 2")?),
Some(Token { value: Value::Key("bsp/a"), .. }) =>
Self::a(state.get_content_or_fail(iter)?,
state.get_content_or_fail(iter)?),
Self::a(state.take_or_fail(iter, "expected content 1")?,
state.take_or_fail(iter, "expected content 2")?),
Some(Token { value: Value::Key("bsp/b"), .. }) =>
Self::b(state.get_content_or_fail(iter)?,
state.get_content_or_fail(iter)?),
Self::b(state.take_or_fail(iter, "expected content 1")?,
state.take_or_fail(iter, "expected content 2")?),
_ => unreachable!(),
}))
} else {