impl<'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
type Error = Error;
forward_to_deserialize_any! {
bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
bytes byte_buf unit seq map identifier ignored_any
}
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
let token = self.next_token()?;
match token {
Token::Bool(v) => visitor.visit_bool(v),
Token::I8(v) => visitor.visit_i8(v),
Token::I16(v) => visitor.visit_i16(v),
Token::I32(v) => visitor.visit_i32(v),
Token::I64(v) => visitor.visit_i64(v),
Token::U8(v) => visitor.visit_u8(v),
Token::U16(v) => visitor.visit_u16(v),
Token::U32(v) => visitor.visit_u32(v),
Token::U64(v) => visitor.visit_u64(v),
Token::F32(v) => visitor.visit_f32(v),
Token::F64(v) => visitor.visit_f64(v),
Token::Char(v) => visitor.visit_char(v),
Token::Str(v) => visitor.visit_str(v),
Token::BorrowedStr(v) => visitor.visit_borrowed_str(v),
Token::String(v) => visitor.visit_string(v.to_owned()),
Token::Bytes(v) => visitor.visit_bytes(v),
Token::BorrowedBytes(v) => visitor.visit_borrowed_bytes(v),
Token::ByteBuf(v) => visitor.visit_byte_buf(v.to_vec()),
Token::None => visitor.visit_none(),
Token::Some => visitor.visit_some(self),
Token::Unit | Token::UnitStruct { .. } => visitor.visit_unit(),
Token::NewtypeStruct { .. } => visitor.visit_newtype_struct(self),
Token::Seq { len } => self.visit_seq(len, Token::SeqEnd, visitor),
Token::Tuple { len } => self.visit_seq(Some(len), Token::TupleEnd, visitor),
Token::TupleStruct { len, .. } => {
self.visit_seq(Some(len), Token::TupleStructEnd, visitor)
}
Token::Map { len } => self.visit_map(len, Token::MapEnd, visitor),
Token::Struct { len, .. } => self.visit_map(Some(len), Token::StructEnd, visitor),
Token::Enum { .. } => {
let variant = self.next_token()?;
let next = self.peek_token()?;
match (variant, next) {
(Token::Str(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_str(variant)
}
(Token::BorrowedStr(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_borrowed_str(variant)
}
(Token::String(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_string(variant.to_string())
}
(Token::Bytes(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_bytes(variant)
}
(Token::BorrowedBytes(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_borrowed_bytes(variant)
}
(Token::ByteBuf(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_byte_buf(variant.to_vec())
}
(Token::U8(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_u8(variant)
}
(Token::U16(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_u16(variant)
}
(Token::U32(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_u32(variant)
}
(Token::U64(variant), Token::Unit) => {
self.next_token()?;
visitor.visit_u64(variant)
}
(variant, Token::Unit) => Err(unexpected(variant)),
(variant, _) => {
visitor.visit_map(EnumMapVisitor::new(self, variant, EnumFormat::Any))
}
}
}
Token::UnitVariant { variant, .. } => visitor.visit_str(variant),
Token::NewtypeVariant { variant, .. } => visitor.visit_map(EnumMapVisitor::new(
self,
Token::Str(variant),
EnumFormat::Any,
)),
Token::TupleVariant { variant, .. } => visitor.visit_map(EnumMapVisitor::new(
self,
Token::Str(variant),
EnumFormat::Seq,
)),
Token::StructVariant { variant, .. } => visitor.visit_map(EnumMapVisitor::new(
self,
Token::Str(variant),
EnumFormat::Map,
)),
Token::SeqEnd
| Token::TupleEnd
| Token::TupleStructEnd
| Token::MapEnd
| Token::StructEnd
| Token::TupleVariantEnd
| Token::StructVariantEnd => Err(unexpected(token)),
}
}
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::Unit | Token::None => {
self.next_token()?;
visitor.visit_none()
}
Token::Some => {
self.next_token()?;
visitor.visit_some(self)
}
_ => self.deserialize_any(visitor),
}
}
fn deserialize_enum<V>(
self,
name: &'static str,
_variants: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::Enum { name: n } if name == n => {
self.next_token()?;
visitor.visit_enum(DeserializerEnumVisitor { de: self })
}
Token::UnitVariant { name: n, .. }
| Token::NewtypeVariant { name: n, .. }
| Token::TupleVariant { name: n, .. }
| Token::StructVariant { name: n, .. }
if name == n =>
{
visitor.visit_enum(DeserializerEnumVisitor { de: self })
}
_ => self.deserialize_any(visitor),
}
}
fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::UnitStruct { .. } => {
assert_next_token(self, Token::UnitStruct { name })?;
visitor.visit_unit()
}
_ => self.deserialize_any(visitor),
}
}
fn deserialize_newtype_struct<V>(
self,
name: &'static str,
visitor: V,
) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::NewtypeStruct { .. } => {
assert_next_token(self, Token::NewtypeStruct { name })?;
visitor.visit_newtype_struct(self)
}
_ => self.deserialize_any(visitor),
}
}
fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::Unit | Token::UnitStruct { .. } => {
self.next_token()?;
visitor.visit_unit()
}
Token::Seq { .. } => {
self.next_token()?;
self.visit_seq(Some(len), Token::SeqEnd, visitor)
}
Token::Tuple { .. } => {
self.next_token()?;
self.visit_seq(Some(len), Token::TupleEnd, visitor)
}
Token::TupleStruct { .. } => {
self.next_token()?;
self.visit_seq(Some(len), Token::TupleStructEnd, visitor)
}
_ => self.deserialize_any(visitor),
}
}
fn deserialize_tuple_struct<V>(
self,
name: &'static str,
len: usize,
visitor: V,
) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::Unit => {
self.next_token()?;
visitor.visit_unit()
}
Token::UnitStruct { .. } => {
assert_next_token(self, Token::UnitStruct { name })?;
visitor.visit_unit()
}
Token::Seq { .. } => {
self.next_token()?;
self.visit_seq(Some(len), Token::SeqEnd, visitor)
}
Token::Tuple { .. } => {
self.next_token()?;
self.visit_seq(Some(len), Token::TupleEnd, visitor)
}
Token::TupleStruct { len: n, .. } => {
assert_next_token(self, Token::TupleStruct { name, len: n })?;
self.visit_seq(Some(len), Token::TupleStructEnd, visitor)
}
_ => self.deserialize_any(visitor),
}
}
fn deserialize_struct<V>(
self,
name: &'static str,
fields: &'static [&'static str],
visitor: V,
) -> Result<V::Value, Error>
where
V: Visitor<'de>,
{
match self.peek_token()? {
Token::Struct { len: n, .. } => {
assert_next_token(self, Token::Struct { name, len: n })?;
self.visit_map(Some(fields.len()), Token::StructEnd, visitor)
}
Token::Map { .. } => {
self.next_token()?;
self.visit_map(Some(fields.len()), Token::MapEnd, visitor)
}
_ => self.deserialize_any(visitor),
}
}
fn is_human_readable(&self) -> bool {
panic!(
"Types which have different human-readable and compact representations \
must explicitly mark their test cases with `serde_test::Configure`"
);
}
}