#![doc(hidden)]
use std::{borrow::Cow, fmt, marker::PhantomData};
use serde::{
de::{self, EnumAccess, Expected, MapAccess, SeqAccess, Unexpected, Visitor},
Deserialize, Deserializer,
};
use super::key_de::KeyDeserializer;
#[derive(Debug, Clone)]
pub enum Content<'de> {
Bool(bool),
U8(u8),
U16(u16),
U32(u32),
U64(u64),
I8(i8),
I16(i16),
I32(i32),
I64(i64),
F32(f32),
F64(f64),
Char(char),
String(String),
Str(&'de str),
ByteBuf(Vec<u8>),
Bytes(&'de [u8]),
None,
Some(Box<Content<'de>>),
Unit,
Newtype(Box<Content<'de>>),
Seq(Vec<Content<'de>>),
Map(Vec<(Cow<'de, str>, Content<'de>)>),
}
impl<'de> Content<'de> {
#[cold]
fn unexpected(&self) -> Unexpected {
match *self {
Content::Bool(b) => Unexpected::Bool(b),
Content::U8(n) => Unexpected::Unsigned(n as u64),
Content::U16(n) => Unexpected::Unsigned(n as u64),
Content::U32(n) => Unexpected::Unsigned(n as u64),
Content::U64(n) => Unexpected::Unsigned(n),
Content::I8(n) => Unexpected::Signed(n as i64),
Content::I16(n) => Unexpected::Signed(n as i64),
Content::I32(n) => Unexpected::Signed(n as i64),
Content::I64(n) => Unexpected::Signed(n),
Content::F32(f) => Unexpected::Float(f as f64),
Content::F64(f) => Unexpected::Float(f),
Content::Char(c) => Unexpected::Char(c),
Content::String(ref s) => Unexpected::Str(s),
Content::Str(s) => Unexpected::Str(s),
Content::ByteBuf(ref b) => Unexpected::Bytes(b),
Content::Bytes(b) => Unexpected::Bytes(b),
Content::None | Content::Some(_) => Unexpected::Option,
Content::Unit => Unexpected::Unit,
Content::Newtype(_) => Unexpected::NewtypeStruct,
Content::Seq(_) => Unexpected::Seq,
Content::Map(_) => Unexpected::Map,
}
}
}
impl<'de> Deserialize<'de> for Content<'de> {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
deserializer.deserialize_any(ContentVisitor { value: PhantomData })
}
}
struct ContentVisitor<'de> {
value: PhantomData<Content<'de>>,
}
impl<'de> Visitor<'de> for ContentVisitor<'de> {
type Value = Content<'de>;
fn expecting(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.write_str("any value")
}
fn visit_bool<F>(self, value: bool) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::Bool(value))
}
fn visit_i8<F>(self, value: i8) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::I8(value))
}
fn visit_i16<F>(self, value: i16) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::I16(value))
}
fn visit_i32<F>(self, value: i32) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::I32(value))
}
fn visit_i64<F>(self, value: i64) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::I64(value))
}
fn visit_u8<F>(self, value: u8) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::U8(value))
}
fn visit_u16<F>(self, value: u16) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::U16(value))
}
fn visit_u32<F>(self, value: u32) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::U32(value))
}
fn visit_u64<F>(self, value: u64) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::U64(value))
}
fn visit_f32<F>(self, value: f32) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::F32(value))
}
fn visit_f64<F>(self, value: f64) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::F64(value))
}
fn visit_char<F>(self, value: char) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::Char(value))
}
fn visit_str<F>(self, value: &str) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::String(value.into()))
}
fn visit_borrowed_str<F>(self, value: &'de str) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::Str(value))
}
fn visit_string<F>(self, value: String) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::String(value))
}
fn visit_bytes<F>(self, value: &[u8]) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::ByteBuf(value.into()))
}
fn visit_borrowed_bytes<F>(self, value: &'de [u8]) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::Bytes(value))
}
fn visit_byte_buf<F>(self, value: Vec<u8>) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::ByteBuf(value))
}
fn visit_unit<F>(self) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::Unit)
}
fn visit_none<F>(self) -> Result<Self::Value, F>
where
F: de::Error,
{
Ok(Content::None)
}
fn visit_some<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: Deserializer<'de>,
{
Deserialize::deserialize(deserializer).map(|v| Content::Some(Box::new(v)))
}
fn visit_newtype_struct<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: Deserializer<'de>,
{
Deserialize::deserialize(deserializer).map(|v| Content::Newtype(Box::new(v)))
}
fn visit_seq<V>(self, mut visitor: V) -> Result<Self::Value, V::Error>
where
V: SeqAccess<'de>,
{
let mut vec = Vec::with_capacity(size_hint::cautious(visitor.size_hint()));
while let Some(e) = visitor.next_element()? {
vec.push(e);
}
Ok(Content::Seq(vec))
}
fn visit_map<V>(self, mut visitor: V) -> Result<Self::Value, V::Error>
where
V: MapAccess<'de>,
{
let mut vec = Vec::with_capacity(size_hint::cautious(visitor.size_hint()));
while let Some(kv) = visitor.next_entry()? {
vec.push(kv);
}
Ok(Content::Map(vec))
}
fn visit_enum<V>(self, _visitor: V) -> Result<Self::Value, V::Error>
where
V: EnumAccess<'de>,
{
Err(de::Error::custom(
"fragment deserialization doesn't support enum input",
))
}
}
pub struct ContentDeserializer<'de, E> {
content: Content<'de>,
err: PhantomData<E>,
}
impl<'de, E> ContentDeserializer<'de, E>
where
E: de::Error,
{
pub fn new(content: Content<'de>) -> Self {
ContentDeserializer {
content,
err: PhantomData,
}
}
#[cold]
fn invalid_type(self, exp: &dyn Expected) -> E {
de::Error::invalid_type(self.content.unexpected(), exp)
}
fn deserialize_integer<V>(self, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match self.content {
Content::U8(v) => visitor.visit_u8(v),
Content::U16(v) => visitor.visit_u16(v),
Content::U32(v) => visitor.visit_u32(v),
Content::U64(v) => visitor.visit_u64(v),
Content::I8(v) => visitor.visit_i8(v),
Content::I16(v) => visitor.visit_i16(v),
Content::I32(v) => visitor.visit_i32(v),
Content::I64(v) => visitor.visit_i64(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_float<V>(self, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match self.content {
Content::F32(v) => visitor.visit_f32(v),
Content::F64(v) => visitor.visit_f64(v),
Content::U8(v) => visitor.visit_u8(v),
Content::U16(v) => visitor.visit_u16(v),
Content::U32(v) => visitor.visit_u32(v),
Content::U64(v) => visitor.visit_u64(v),
Content::I8(v) => visitor.visit_i8(v),
Content::I16(v) => visitor.visit_i16(v),
Content::I32(v) => visitor.visit_i32(v),
Content::I64(v) => visitor.visit_i64(v),
_ => Err(self.invalid_type(&visitor)),
}
}
}
fn visit_content_seq<'de, V, E>(content: Vec<Content<'de>>, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
E: de::Error,
{
let seq = content.into_iter().map(ContentDeserializer::new);
let mut seq_visitor = de::value::SeqDeserializer::new(seq);
let value = visitor.visit_seq(&mut seq_visitor)?;
seq_visitor.end()?;
Ok(value)
}
fn visit_content_map<'de, V, E>(
content: Vec<(Cow<'de, str>, Content<'de>)>,
visitor: V,
) -> Result<V::Value, E>
where
V: Visitor<'de>,
E: de::Error,
{
let map = content
.into_iter()
.map(|(k, v)| (KeyDeserializer::new(k), ContentDeserializer::new(v)));
let mut map_visitor = de::value::MapDeserializer::new(map);
let value = visitor.visit_map(&mut map_visitor)?;
map_visitor.end()?;
Ok(value)
}
impl<'de, E> Deserializer<'de> for ContentDeserializer<'de, E>
where
E: de::Error,
{
type Error = E;
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Bool(v) => visitor.visit_bool(v),
Content::U8(v) => visitor.visit_u8(v),
Content::U16(v) => visitor.visit_u16(v),
Content::U32(v) => visitor.visit_u32(v),
Content::U64(v) => visitor.visit_u64(v),
Content::I8(v) => visitor.visit_i8(v),
Content::I16(v) => visitor.visit_i16(v),
Content::I32(v) => visitor.visit_i32(v),
Content::I64(v) => visitor.visit_i64(v),
Content::F32(v) => visitor.visit_f32(v),
Content::F64(v) => visitor.visit_f64(v),
Content::Char(v) => visitor.visit_char(v),
Content::String(v) => visitor.visit_string(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(v) => visitor.visit_byte_buf(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
Content::Unit => visitor.visit_unit(),
Content::None => visitor.visit_none(),
Content::Some(v) => visitor.visit_some(ContentDeserializer::new(*v)),
Content::Newtype(v) => visitor.visit_newtype_struct(ContentDeserializer::new(*v)),
Content::Seq(v) => visit_content_seq(v, visitor),
Content::Map(v) => visit_content_map(v, visitor),
}
}
fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Bool(v) => visitor.visit_bool(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_float(visitor)
}
fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_float(visitor)
}
fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Char(v) => visitor.visit_char(v),
Content::String(v) => visitor.visit_string(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_string(visitor)
}
fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::String(v) => visitor.visit_string(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(v) => visitor.visit_byte_buf(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_byte_buf(visitor)
}
fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::String(v) => visitor.visit_string(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(v) => visitor.visit_byte_buf(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
Content::Seq(v) => visit_content_seq(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::None => visitor.visit_none(),
Content::Some(v) => visitor.visit_some(ContentDeserializer::new(*v)),
Content::Unit => visitor.visit_unit(),
_ => visitor.visit_some(self),
}
}
fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Unit => visitor.visit_unit(),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_unit_struct<V>(
self,
_name: &'static str,
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Map(ref v) if v.is_empty() => visitor.visit_unit(),
Content::Seq(ref v) if v.is_empty() => visitor.visit_unit(),
_ => self.deserialize_any(visitor),
}
}
fn deserialize_newtype_struct<V>(self, _name: &str, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Newtype(v) => visitor.visit_newtype_struct(ContentDeserializer::new(*v)),
_ => visitor.visit_newtype_struct(self),
}
}
fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Seq(v) => visit_content_seq(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_tuple<V>(self, _len: usize, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_seq(visitor)
}
fn deserialize_tuple_struct<V>(
self,
_name: &'static str,
_len: usize,
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_seq(visitor)
}
fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Map(v) => visit_content_map(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_struct<V>(
self,
_name: &'static str,
_fields: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::Seq(v) => visit_content_seq(v, visitor),
Content::Map(v) => visit_content_map(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_enum<V>(
self,
_name: &str,
_variants: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_any(visitor)
}
fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match self.content {
Content::String(v) => visitor.visit_string(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(v) => visitor.visit_byte_buf(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
Content::U8(v) => visitor.visit_u8(v),
Content::U64(v) => visitor.visit_u64(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
drop(self);
visitor.visit_unit()
}
}
pub struct ContentRefDeserializer<'a, 'de: 'a, E> {
content: &'a Content<'de>,
err: PhantomData<E>,
}
impl<'a, 'de, E> ContentRefDeserializer<'a, 'de, E>
where
E: de::Error,
{
pub fn new(content: &'a Content<'de>) -> Self {
ContentRefDeserializer {
content,
err: PhantomData,
}
}
#[cold]
fn invalid_type(self, exp: &dyn Expected) -> E {
de::Error::invalid_type(self.content.unexpected(), exp)
}
fn deserialize_integer<V>(self, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match *self.content {
Content::U8(v) => visitor.visit_u8(v),
Content::U16(v) => visitor.visit_u16(v),
Content::U32(v) => visitor.visit_u32(v),
Content::U64(v) => visitor.visit_u64(v),
Content::I8(v) => visitor.visit_i8(v),
Content::I16(v) => visitor.visit_i16(v),
Content::I32(v) => visitor.visit_i32(v),
Content::I64(v) => visitor.visit_i64(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_float<V>(self, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match *self.content {
Content::F32(v) => visitor.visit_f32(v),
Content::F64(v) => visitor.visit_f64(v),
Content::U8(v) => visitor.visit_u8(v),
Content::U16(v) => visitor.visit_u16(v),
Content::U32(v) => visitor.visit_u32(v),
Content::U64(v) => visitor.visit_u64(v),
Content::I8(v) => visitor.visit_i8(v),
Content::I16(v) => visitor.visit_i16(v),
Content::I32(v) => visitor.visit_i32(v),
Content::I64(v) => visitor.visit_i64(v),
_ => Err(self.invalid_type(&visitor)),
}
}
}
fn visit_content_seq_ref<'a, 'de, V, E>(
content: &'a [Content<'de>],
visitor: V,
) -> Result<V::Value, E>
where
V: Visitor<'de>,
E: de::Error,
{
let seq = content.iter().map(ContentRefDeserializer::new);
let mut seq_visitor = de::value::SeqDeserializer::new(seq);
let value = visitor.visit_seq(&mut seq_visitor)?;
seq_visitor.end()?;
Ok(value)
}
fn visit_content_map_ref<'a, 'de, V, E>(
content: &'a [(Cow<'de, str>, Content<'de>)],
visitor: V,
) -> Result<V::Value, E>
where
V: Visitor<'de>,
E: de::Error,
{
let map = content.iter().map(|&(ref k, ref v)| {
(
KeyDeserializer::new(k.clone()),
ContentRefDeserializer::new(v),
)
});
let mut map_visitor = de::value::MapDeserializer::new(map);
let value = visitor.visit_map(&mut map_visitor)?;
map_visitor.end()?;
Ok(value)
}
impl<'de, 'a, E> Deserializer<'de> for ContentRefDeserializer<'a, 'de, E>
where
E: de::Error,
{
type Error = E;
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match *self.content {
Content::Bool(v) => visitor.visit_bool(v),
Content::U8(v) => visitor.visit_u8(v),
Content::U16(v) => visitor.visit_u16(v),
Content::U32(v) => visitor.visit_u32(v),
Content::U64(v) => visitor.visit_u64(v),
Content::I8(v) => visitor.visit_i8(v),
Content::I16(v) => visitor.visit_i16(v),
Content::I32(v) => visitor.visit_i32(v),
Content::I64(v) => visitor.visit_i64(v),
Content::F32(v) => visitor.visit_f32(v),
Content::F64(v) => visitor.visit_f64(v),
Content::Char(v) => visitor.visit_char(v),
Content::String(ref v) => visitor.visit_str(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(ref v) => visitor.visit_bytes(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
Content::Unit => visitor.visit_unit(),
Content::None => visitor.visit_none(),
Content::Some(ref v) => visitor.visit_some(ContentRefDeserializer::new(v)),
Content::Newtype(ref v) => visitor.visit_newtype_struct(ContentRefDeserializer::new(v)),
Content::Seq(ref v) => visit_content_seq_ref(v, visitor),
Content::Map(ref v) => visit_content_map_ref(v, visitor),
}
}
fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::Bool(v) => visitor.visit_bool(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_integer(visitor)
}
fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_float(visitor)
}
fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_float(visitor)
}
fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::Char(v) => visitor.visit_char(v),
Content::String(ref v) => visitor.visit_str(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::String(ref v) => visitor.visit_str(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(ref v) => visitor.visit_bytes(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_str(visitor)
}
fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::String(ref v) => visitor.visit_str(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(ref v) => visitor.visit_bytes(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
Content::Seq(ref v) => visit_content_seq_ref(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_bytes(visitor)
}
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match *self.content {
Content::None => visitor.visit_none(),
Content::Some(ref v) => visitor.visit_some(ContentRefDeserializer::new(v)),
Content::Unit => visitor.visit_unit(),
_ => visitor.visit_some(self),
}
}
fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::Unit => visitor.visit_unit(),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_unit_struct<V>(
self,
_name: &'static str,
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_unit(visitor)
}
fn deserialize_newtype_struct<V>(self, _name: &str, visitor: V) -> Result<V::Value, E>
where
V: Visitor<'de>,
{
match *self.content {
Content::Newtype(ref v) => visitor.visit_newtype_struct(ContentRefDeserializer::new(v)),
_ => visitor.visit_newtype_struct(self),
}
}
fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::Seq(ref v) => visit_content_seq_ref(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_tuple<V>(self, _len: usize, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_seq(visitor)
}
fn deserialize_tuple_struct<V>(
self,
_name: &'static str,
_len: usize,
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_seq(visitor)
}
fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::Map(ref v) => visit_content_map_ref(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_struct<V>(
self,
_name: &'static str,
_fields: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::Seq(ref v) => visit_content_seq_ref(v, visitor),
Content::Map(ref v) => visit_content_map_ref(v, visitor),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_enum<V>(
self,
_name: &str,
_variants: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
self.deserialize_any(visitor)
}
fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
match *self.content {
Content::String(ref v) => visitor.visit_str(v),
Content::Str(v) => visitor.visit_borrowed_str(v),
Content::ByteBuf(ref v) => visitor.visit_bytes(v),
Content::Bytes(v) => visitor.visit_borrowed_bytes(v),
Content::U8(v) => visitor.visit_u8(v),
Content::U64(v) => visitor.visit_u64(v),
_ => Err(self.invalid_type(&visitor)),
}
}
fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where
V: Visitor<'de>,
{
visitor.visit_unit()
}
}
impl<'de, E> de::IntoDeserializer<'de, E> for ContentDeserializer<'de, E>
where
E: de::Error,
{
type Deserializer = Self;
fn into_deserializer(self) -> Self {
self
}
}
impl<'de, 'a, E> de::IntoDeserializer<'de, E> for ContentRefDeserializer<'a, 'de, E>
where
E: de::Error,
{
type Deserializer = Self;
fn into_deserializer(self) -> Self {
self
}
}
mod size_hint {
#[inline]
pub fn cautious(hint: Option<usize>) -> usize {
std::cmp::min(hint.unwrap_or(0), 4096)
}
}