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use crate::{Custom, Element, IntoTokens, Tokens};
use std::collections::BTreeSet;
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Hash)]
pub enum Modifier {
Async,
Final,
}
impl Modifier {
pub fn name(&self) -> &'static str {
use self::Modifier::*;
match *self {
Async => "async",
Final => "final",
}
}
}
impl<'el, C: Custom> From<Modifier> for Element<'el, C> {
fn from(value: Modifier) -> Self {
value.name().into()
}
}
impl<'el, C: Custom> IntoTokens<'el, C> for Vec<Modifier> {
fn into_tokens(self) -> Tokens<'el, C> {
self.into_iter()
.collect::<BTreeSet<_>>()
.into_iter()
.map(Element::from)
.collect()
}
}
#[cfg(test)]
mod tests {
use super::Modifier;
use crate::dart::Dart;
use crate::tokens::Tokens;
#[test]
fn test_vec() {
use self::Modifier::*;
let el: Tokens<Dart> = toks![Async, Final].join_spacing();
let s = el.to_string();
let out = s.as_ref().map(|s| s.as_str());
assert_eq!(Ok("async final"), out);
}
}