pub(crate) struct UTF8Deserializer<'de> {
pub(crate) input: &'de str,
}
const _: () = {
impl<'de> UTF8Deserializer<'de> {
#[inline(always)]
fn input(&mut self) -> &str {
let mut input = "";
std::mem::swap(&mut self.input, &mut input);
input
}
}
};
impl<'de> serde::Deserializer<'de> for &mut UTF8Deserializer<'de> {
type Error = super::Error;
#[inline(always)]
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
self.deserialize_str(visitor)
}
fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
self.deserialize_any(visitor)
}
#[inline(always)]
fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_str(self.input())
}
fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
self.deserialize_str(visitor)
}
#[inline(always)]
fn deserialize_newtype_struct<V>(
self,
_name: &'static str,
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_newtype_struct(self)
}
fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
match self.input() {
"true" => visitor.visit_bool(true),
"false" => visitor.visit_bool(false),
other => Err({
serde::de::Error::custom(format!("Expected `true` or `false`, but found `{other}`"))
}),
}
}
fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
self.deserialize_bytes(visitor)
}
fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_bytes(self.input().as_bytes())
}
fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
let mut chars = self.input.chars();
match (chars.next(), chars.next()) {
(Some(c), None) => {
self.input = "";
visitor.visit_char(c)
}
_ => Err(serde::de::Error::custom(format!(
"Expected a single char, but got single"
))),
}
}
#[inline]
fn deserialize_enum<V>(
self,
_name: &'static str,
_variants: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
use serde::de::IntoDeserializer;
visitor.visit_enum(self.input().into_deserializer())
}
fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_f32(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a f32: {e}"))
})?,
)
}
fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_f64(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a f64: {e}"))
})?,
)
}
fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_i8(
self.input()
.parse()
.map_err(|e| serde::de::Error::custom(format!("Can't parse input as a i8: {e}")))?,
)
}
fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_i16(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a i16: {e}"))
})?,
)
}
fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_i32(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a i32: {e}"))
})?,
)
}
fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_i64(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a i64: {e}"))
})?,
)
}
fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_u8(
self.input()
.parse()
.map_err(|e| serde::de::Error::custom(format!("Can't parse input as a u8: {e}")))?,
)
}
fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_u16(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a u16: {e}"))
})?,
)
}
fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_u32(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a u32: {e}"))
})?,
)
}
fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
visitor.visit_u64(
self.input().parse().map_err(|e| {
serde::de::Error::custom(format!("Can't parse input as a u64: {e}"))
})?,
)
}
#[inline]
fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
self.deserialize_str(visitor)
}
#[inline]
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
if self.input.is_empty() {
visitor.visit_none()
} else {
visitor.visit_some(self)
}
}
fn deserialize_map<V>(self, _visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
Err(serde::de::Error::custom(
"ohkami's builtin UTF-8 deserializer doesn't support maps",
))
}
fn deserialize_seq<V>(self, _visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
Err(serde::de::Error::custom(
"ohkami's builtin UTF-8 deserializer doesn't support sequences",
))
}
fn deserialize_struct<V>(
self,
_name: &'static str,
_fields: &'static [&'static str],
_visitor: V,
) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
Err(serde::de::Error::custom(
"ohkami's builtin UTF-8 deserializer doesn't support structs except for newtypes !",
))
}
fn deserialize_tuple<V>(self, _len: usize, _visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
Err(serde::de::Error::custom(
"ohkami's builtin UTF-8 deserializer doesn't support tuples",
))
}
fn deserialize_tuple_struct<V>(
self,
_name: &'static str,
_len: usize,
_visitor: V,
) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
Err(serde::de::Error::custom(
"ohkami's builtin UTF-8 deserializer doesn't support structs except for newtypes !",
))
}
fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
if self.input.is_empty() {
visitor.visit_unit()
} else {
Err(serde::de::Error::custom(format!(
"Expected empty input, but got {}",
self.input
)))
}
}
fn deserialize_unit_struct<V>(
self,
_name: &'static str,
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: serde::de::Visitor<'de>,
{
self.deserialize_unit(visitor)
}
}