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wip: try to get a simplified parser going

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🪞👃🪞 2025-01-04 08:49:38 +01:00
parent fc82d6ff9b
commit 600d0b3aca
17 changed files with 676 additions and 133 deletions
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35
engine/src/edn.rs
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@ -1,36 +1 @@
use crate::*;
use std::sync::{Arc, RwLock};
use std::collections::BTreeMap;
pub use clojure_reader::edn::Edn;
/// EDN parsing helper.
#[macro_export] macro_rules! edn {
($edn:ident { $($pat:pat => $expr:expr),* $(,)? }) => {
match $edn { $($pat => $expr),* }
};
($edn:ident in $args:ident { $($pat:pat => $expr:expr),* $(,)? }) => {
for $edn in $args {
edn!($edn { $($pat => $expr),* })
}
};
}
pub trait FromEdn<C>: Sized {
const ID: &'static str;
fn from_edn (context: C, expr: &[Edn<'_>]) -> Usually<Self>;
}
/// Implements the [FromEdn] trait.
#[macro_export] macro_rules! from_edn {
($id:expr => |$context:tt:$Context:ty, $args:ident| -> $T:ty $body:block) => {
impl FromEdn<$Context> for $T {
const ID: &'static str = $id;
fn from_edn <'e> ($context: $Context, $args: &[Edn<'e>]) -> Usually<Self> {
$body
}
}
}
}

4
engine/src/lib.rs
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@ -1,10 +1,12 @@
#![feature(associated_type_defaults)]
//mod component; pub use self::component::*;
mod engine; pub use self::engine::*;
mod input; pub use self::input::*;
mod output; pub use self::output::*;
pub mod tui;
pub mod edn;
#[cfg(feature = "edn")] pub mod edn;
pub use std::error::Error;