mirror of
https://codeberg.org/unspeaker/tek.git
synced 2025-12-07 04:06:45 +01:00
68 lines
3.5 KiB
Rust
68 lines
3.5 KiB
Rust
use crate::*;
|
|
use std::marker::PhantomData;
|
|
use ::tek_layout::{*, tek_engine::{Usually, Content, Render, Engine, Thunk}};
|
|
use Item::*;
|
|
|
|
//pub struct EdnContent<'a, E, T: AsRef<str>>(PhantomData<E>, &'a [Item<T>]);
|
|
|
|
//impl<'a, E, T: AsRef<str>> From<&'a [Item<T>]> for EdnContent<'a, E, T> {
|
|
//fn from (items: &'a [Item<T>]) -> Self {
|
|
//Self(Default::default(), items)
|
|
//}
|
|
//}
|
|
|
|
pub struct EdnView<'a, E: Engine + 'a, T: EdnLayout<'a, E> + 'a>(
|
|
PhantomData<&'a ()>,
|
|
Box<dyn Fn(T)->Box<dyn Render<E> + Send + Sync> + Send + Sync>
|
|
);
|
|
|
|
impl<'a, E: Engine + 'a, T: EdnLayout<'a, E> + 'a> EdnView<'a, E, T> {
|
|
fn from (source: &'a str) -> Usually<Self> {
|
|
let items: Vec<Item<&'a str>> = Item::read_all(source)?;
|
|
let layout = T::parse(items.iter().map(|x|x.to_str()).collect::<Vec<_>>().as_slice());
|
|
Ok(Self(Default::default(), Box::new(move|_|{
|
|
let _ = layout;
|
|
Box::new(())
|
|
})))
|
|
}
|
|
}
|
|
|
|
macro_rules! edn_ns {
|
|
(|$state:ident, $items:ident| { $($match:pat => $handle:expr),* $(,)? }) => {
|
|
match $items {
|
|
$($match => |$state|Box::new($handle),)*
|
|
_ => |$state|Box::new(())
|
|
}
|
|
}
|
|
}
|
|
|
|
pub trait EdnLayout<'a, E: Engine> where Self: 'a {
|
|
fn get_bool (&self, _: &Item<&str>) -> bool { false }
|
|
fn get_unit (&self, _: &Item<&str>) -> E::Unit { 0.into() }
|
|
fn get_usize (&self, _: &Item<&str>) -> usize { 0 }
|
|
fn get_content (&self, _: &Item<&str>) -> Box<dyn Render<E>> { Box::new(()) }
|
|
fn parse (items: &'a [Item<&'a str>]) -> impl Fn(&'a Self)->Box<dyn Render<E> + 'a> + 'a {
|
|
edn_ns!(|state, items|{
|
|
[Key("when"), c, a, ..] => When(state.get_bool(c), state.get_content(a)),
|
|
[Key("either"), c, a, b, ..] => Either(state.get_bool(c), state.get_content(a), state.get_content(b)),
|
|
[Key("fill"), a, ..] => Fill::xy(state.get_content(a)),
|
|
[Key("fill/x"), a, ..] => Fill::x(state.get_content(a)),
|
|
[Key("fill/y"), a, ..] => Fill::y(state.get_content(a)),
|
|
[Key("fixed"), x, y, a, ..] => Fixed::xy(state.get_unit(x), state.get_unit(y), state.get_content(a)),
|
|
[Key("fixed/x"), x, a, ..] => Fixed::x(state.get_unit(x), state.get_content(a)),
|
|
[Key("fixed/y"), y, a, ..] => Fixed::y(state.get_unit(y), state.get_content(a)),
|
|
[Key("shrink"), x, y, a, ..] => Shrink::xy(state.get_unit(x), state.get_unit(y), state.get_content(a)),
|
|
[Key("shrink/x"), x, a, ..] => Shrink::x(state.get_unit(x), state.get_content(a)),
|
|
[Key("shrink/y"), y, a, ..] => Shrink::y(state.get_unit(y), state.get_content(a)),
|
|
[Key("expand"), x, y, a, ..] => Expand::xy(state.get_unit(x), state.get_unit(y), state.get_content(a)),
|
|
[Key("expand/x"), x, a, ..] => Expand::x(state.get_unit(x), state.get_content(a)),
|
|
[Key("expand/y"), y, a, ..] => Expand::y(state.get_unit(y), state.get_content(a)),
|
|
[Key("push"), x, y, a, ..] => Push::xy(state.get_unit(x), state.get_unit(y), state.get_content(a)),
|
|
[Key("push/x"), x, a, ..] => Push::x(state.get_unit(x), state.get_content(a)),
|
|
[Key("push/y"), y, a, ..] => Push::y(state.get_unit(y), state.get_content(a)),
|
|
[Key("pull"), x, y, a, ..] => Pull::xy(state.get_unit(x), state.get_unit(y), state.get_content(a)),
|
|
[Key("pull/x"), x, a, ..] => Pull::x(state.get_unit(x), state.get_content(a)),
|
|
[Key("pull/y"), y, a, ..] => Pull::y(state.get_unit(y), state.get_content(a)),
|
|
})
|
|
}
|
|
}
|