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facile pop culture reference 2026-08-19 18:21:34 +03:00
parent a9f2fa2cdd
commit 291ab63224
11 changed files with 98 additions and 96 deletions
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16
src/lib.rs
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@ -1797,19 +1797,19 @@ pub trait AsMutOpt<T> { fn as_mut_opt (&mut self) -> Option<&mut T>; }
-> UsuallyRef<'a, Self>;
}
impl<'a, T: Language<'a> + 'a> ColorDsl<'a, T> for Color {
impl<'a, T: Language + 'a> ColorDsl<'a, T> for Color {
fn new_g (expr: &'a T, try_to_u8: impl Fn(PerhapsRef<'a, &'a str>)->PerhapsRef<'a, u8>)
-> Result<Self, Box<dyn Error + 'a>>
{
let n = try_to_u8(expr.tail().map_err(Into::into))?.ok_or(Domain("not gray"))?;
let n = try_to_u8(expr.tail().map_err(Into::into))?.ok_or(LanguageError::domain("not gray"))?;
Ok(Self::Rgb(n, n, n))
}
fn new_rgb (expr: &'a T, try_to_u8: impl Fn(PerhapsRef<'a, &str>)->PerhapsRef<'a, u8>)
-> Result<Self, Box<dyn Error + 'a>>
{
let r = try_to_u8(expr.nth(1).map_err(Into::into))?.ok_or(Domain("not red"))?;
let g = try_to_u8(expr.nth(2).map_err(Into::into))?.ok_or(Domain("not green"))?;
let b = try_to_u8(expr.nth(3).map_err(Into::into))?.ok_or(Domain("not blue"))?;
let r = try_to_u8(expr.nth(1).map_err(Into::into))?.ok_or(LanguageError::domain("not red"))?;
let g = try_to_u8(expr.nth(2).map_err(Into::into))?.ok_or(LanguageError::domain("not green"))?;
let b = try_to_u8(expr.nth(3).map_err(Into::into))?.ok_or(LanguageError::domain("not blue"))?;
Ok(Color::Rgb(r, g, b))
}
}
@ -1935,8 +1935,8 @@ pub trait AsMutOpt<T> { fn as_mut_opt (&mut self) -> Option<&mut T>; }
/// # Ok(()) }
/// ```
pub trait Keywords <U, V>: 'static {
fn keywords () -> impl Iterator<Item = fn(&Self, &mut U, &str) -> Perhaps<V>>;
fn keyword <'a> (&self, to: &mut U, expr: &'a impl Language<'a>) -> PerhapsRef<'a, V> {
fn keywords <'a> () -> impl Iterator<Item = fn(&Self, &mut U, &str) -> PerhapsRef<'a, V>>;
fn keyword <'a> (&self, to: &mut U, expr: &'a (impl Language + ?Sized)) -> PerhapsRef<'a, V> {
if let Some(expr) = expr.src()? {
for keyword in Self::keywords() {
if let Some(result) = keyword(self, to, &expr)? {
@ -1951,7 +1951,7 @@ pub trait AsMutOpt<T> { fn as_mut_opt (&mut self) -> Option<&mut T>; }
#[macro_export] macro_rules! impl_keywords {
($T:ty, $U:ty, $V:ty [ $($kw:ident),* ]) => {
impl Keywords<$T, $U> for $V {
fn keywords () -> impl Iterator<Item = fn(&Self, &mut $T, &str) -> Perhaps<$U>> {
fn keywords <'a> () -> impl Iterator<Item = fn(&Self, &mut $T, &str) -> PerhapsRef<'a, $U>> {
[ $($kw),* ].into_iter()
}
}