use core::fmt;
use core::marker;
use crate::Context;
use crate::de::UnsizedVisitor;
use crate::json::parser::SliceParser;
use crate::json::parser::integer::Signed;
use super::parse_signed;
pub(crate) struct KeySignedVisitor<T> {
_marker: marker::PhantomData<T>,
}
impl<T> KeySignedVisitor<T> {
#[inline]
pub(super) const fn new() -> Self {
Self {
_marker: marker::PhantomData,
}
}
}
#[crate::trait_defaults(crate)]
impl<C, T> UnsizedVisitor<'_, C, [u8]> for KeySignedVisitor<T>
where
C: Context,
T: Signed,
{
type Ok = T;
#[inline]
fn expecting(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "bytes")
}
#[inline]
fn visit_ref(self, cx: C, bytes: &[u8]) -> Result<Self::Ok, C::Error> {
parse_signed(cx, &mut SliceParser::new(bytes))
}
}