tek/edn/src/lib.rs

73 lines
2.7 KiB
Rust

#![feature(adt_const_params)]
#![feature(type_alias_impl_trait)]
#![feature(impl_trait_in_fn_trait_return)]
mod error; pub use self::error::*;
mod token; pub use self::token::*;
mod atom; pub use self::atom::*;
mod atom_ref; pub use self::atom_ref::*;
mod atom_arc; pub use self::atom_arc::*;
mod context; pub use self::context::*;
pub(crate) use self::ParseError::*;
//pub(crate) use self::TokenKind::*;
pub(crate) use std::sync::Arc;
//pub(crate) use std::marker::ConstParamTy;
pub(crate) use itertools::join;
pub(crate) use konst::iter::{ConstIntoIter, IsIteratorKind};
pub(crate) use konst::string::{split_at, str_range, char_indices};
pub(crate) use std::error::Error;
pub(crate) use std::fmt::{Debug, Display, Formatter, Result as FormatResult, Error as FormatError};
/// Static iteration helper.
#[macro_export] macro_rules! iterate {
($expr:expr => $arg: pat => $body:expr) => {
let mut iter = $expr;
while let Some(($arg, next)) = iter.next() {
$body;
iter = next;
}
}
}
/// Implement the const iterator pattern.
#[macro_export] macro_rules! const_iter {
($(<$l:lifetime>)?|$self:ident: $Struct:ty| => $Item:ty => $expr:expr) => {
impl$(<$l>)? Iterator for $Struct {
type Item = $Item;
fn next (&mut $self) -> Option<$Item> { $expr }
}
impl$(<$l>)? ConstIntoIter for $Struct {
type Kind = IsIteratorKind;
type Item = $Item;
type IntoIter = Self;
}
}
}
#[cfg(test)] #[test] fn test_lang () -> Result<(), ParseError> {
use Atom::*;
assert_eq!(Atom::read_all("")?,
vec![]);
assert_eq!(Atom::read_all(" ")?,
vec![]);
assert_eq!(Atom::read_all("1234")?,
vec![Num(1234)]);
assert_eq!(Atom::read_all("1234 5 67")?,
vec![Num(1234), Num(5), Num(67)]);
assert_eq!(Atom::read_all("foo/bar")?,
vec![Key("foo/bar".into())]);
assert_eq!(Atom::read_all(":symbol")?,
vec![Sym(":symbol".into())]);
assert_eq!(Atom::read_all(" foo/bar :baz 456")?,
vec![Key("foo/bar".into()), Sym(":baz".into()), Num(456)]);
assert_eq!(Atom::read_all(" (foo/bar :baz 456) ")?,
vec![Exp(vec![Key("foo/bar".into()), Sym(":baz".into()), Num(456)])]);
Ok(())
}
#[cfg(test)] #[test] fn test_lang_examples () -> Result<(), ParseError> {
for example in [
include_str!("../../tui/examples/edn01.edn"),
include_str!("../../tui/examples/edn02.edn"),
] {
let items = Atom::read_all(example)?;
//panic!("{layout:?}");
//let content = <dyn ViewContext<::tek_engine::tui::Tui>>::from(&layout);
}
Ok(())
}