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use super::utils::Context;
pub trait TokenTrait
where
Self: Sized + PartialEq,
{
fn match_char(c: char) -> Option<Self>;
}
pub trait TokenWrapper<T>
where
Self: Sized,
T: TokenTrait,
{
fn wrap(token: T, context: Context) -> Self;
}
impl<T> TokenWrapper<T> for T
where
T: TokenTrait,
{
fn wrap(token: T, _: Context) -> Self {
token
}
}
pub trait TokenMatch<T>
where
T: TokenTrait,
{
fn matches_token(&self, t: &T) -> bool;
}
impl<T> TokenMatch<T> for T
where
T: TokenTrait,
{
fn matches_token(&self, t: &T) -> bool {
self == t
}
}
impl<T> TokenMatch<T> for Vec<T>
where
T: TokenTrait,
{
fn matches_token(&self, t: &T) -> bool {
for token in self {
if token == t {
return true;
}
}
false
}
}