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wip: providing content chunks with ednprovider

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🪞👃🪞 2025-01-12 16:12:26 +01:00
parent 1ff35baea9
commit 8c54f8e426
8 changed files with 157 additions and 41 deletions
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34
input/src/edn_provide.rs
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@ -1,34 +0,0 @@
use crate::*;
/// Implement `EdnProvide` for a type and context
#[macro_export] macro_rules! edn_provide {
($type:ty:|$self:ident:$State:ty|{ $($pat:pat => $expr:expr),* $(,)? }) => {
impl EdnProvide<$type> for $State {
fn get <S: AsRef<str>> (&$self, edn: &EdnItem<S>) -> Option<$type> {
Some(match edn.to_ref() {
$(EdnItem::Sym($pat) => $expr),*,
_ => return None
})
}
}
}
}
/// Map EDN tokens to parameters of a given type for a given context
pub trait EdnProvide<U> {
fn get <S: AsRef<str>> (&self, _edn: &EdnItem<S>) -> Option<U> {
None
}
fn get_or_fail <S: AsRef<str>> (&self, edn: &EdnItem<S>) -> U {
self.get(edn).expect("no value")
}
}
impl<T: EdnProvide<U>, U> EdnProvide<U> for &T {
fn get <S: AsRef<str>> (&self, edn: &EdnItem<S>) -> Option<U> {
(*self).get(edn)
}
fn get_or_fail <S: AsRef<str>> (&self, edn: &EdnItem<S>) -> U {
(*self).get_or_fail(edn)
}
}

1
input/src/lib.rs
View file

@ -9,7 +9,6 @@ mod event_map; pub use self::event_map::*;
mod edn_command; pub use self::edn_command::*;
mod edn_input; pub use self::edn_input::*;
mod edn_keymap; pub use self::edn_keymap::*;
mod edn_provide; pub use self::edn_provide::*;
pub(crate) use ::tek_edn::EdnItem;
/// Standard error trait.