Struct KeyValueDeserializer

pub struct KeyValueDeserializer<'de> { /* private fields */ }

Serde deserializer for key-values strings.

Implementations

impl<'de> KeyValueDeserializer<'de>

pub fn error_here(&self, kind: ErrorKind) -> ParseError

Return an kind error for the current position of the input.

pub fn peek_char(&self) -> Option<char>

Returns the next char in the input string without consuming it, or None if we reached the end of input.

pub fn skip_char(&mut self)

Skip the next char in the input string.

pub fn next_char(&mut self) -> Option<char>

Returns the next char in the input string and consume it, or returns None if we reached the end of input.

pub fn parse_identifier(&mut self) -> Result<&'de str, ParseError>

Attempts to parse an identifier, either for a key or for the value of an enum type.

pub fn parse_string(&mut self) -> Result<Cow<'de, str>, ParseError>

Attempts to parse a string.

pub fn parse_bool(&mut self) -> Result<bool, ParseError>

Attempt to parse a boolean.

pub fn parse_number<T>(&mut self) -> Result<T, ParseError>

where T: Num<FromStrRadixErr = ParseIntError>,

Attempt to parse a positive or negative number.

pub fn finish(self) -> Result<(), ParseError>

Consume this deserializer and return a TrailingCharacters error if some input was remaining.

This is useful to confirm that the whole input has been consumed without any extra elements.

Trait Implementations

impl<'de> Deserializer<'de> for &mut KeyValueDeserializer<'de>

type Error = ParseError

The error type that can be returned if some error occurs during deserialization.

fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Require the Deserializer to figure out how to drive the visitor based on what data type is in the input.

fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a bool value.

fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i8 value.

fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i16 value.

fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i32 value.

fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i64 value.

fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u8 value.

fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u16 value.

fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u32 value.

fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u64 value.

fn deserialize_f32<V>(self, _visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a f32 value.

fn deserialize_f64<V>(self, _visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a f64 value.

fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a char value.

fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a string value and does not benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a string value and would benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_bytes<V>(self, _visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a byte array and does not benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a byte array and would benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an optional value.

fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a unit value.

fn deserialize_unit_struct<V>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a unit struct with a particular name.

fn deserialize_newtype_struct<V>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a newtype struct with a particular name.

fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a sequence of values.

fn deserialize_tuple<V>( self, _len: usize, visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a sequence of values and knows how many values there are without looking at the serialized data.

fn deserialize_tuple_struct<V>( self, _name: &'static str, _len: usize, _visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a tuple struct with a particular name and number of fields.

fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a map of key-value pairs.

fn deserialize_struct<V>( self, _name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting a struct with a particular name and fields.

fn deserialize_enum<V>( self, _name: &'static str, _variants: &'static [&'static str], visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an enum value with a particular name and possible variants.

fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting the name of a struct field or the discriminant of an enum variant.

fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Hint that the Deserialize type needs to deserialize a value whose type doesn’t matter because it is ignored.

fn deserialize_i128<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, Self::Error>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i128 value.

fn deserialize_u128<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, Self::Error>

where V: Visitor<'de>,

Hint that the Deserialize type is expecting an u128 value.

fn is_human_readable(&self) -> bool

Determine whether Deserialize implementations should expect to deserialize their human-readable form.

impl<'de> EnumAccess<'de> for &mut KeyValueDeserializer<'de>

type Error = ParseError

The error type that can be returned if some error occurs during deserialization.

type Variant = &mut KeyValueDeserializer<'de>

The Visitor that will be used to deserialize the content of the enum variant.

fn variant_seed<V>( self, seed: V, ) -> Result<(V::Value, Self::Variant), ParseError>

where V: DeserializeSeed<'de>,

variant is called to identify which variant to deserialize.

fn variant<V>(self) -> Result<(V, Self::Variant), Self::Error>

where V: Deserialize<'de>,

variant is called to identify which variant to deserialize.

impl<'de> From<&'de str> for KeyValueDeserializer<'de>

fn from(input: &'de str) -> Self

Converts to this type from the input type.

impl<'de> MapAccess<'de> for KeyValueDeserializer<'de>

type Error = ParseError

The error type that can be returned if some error occurs during deserialization.

fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, ParseError>

where K: DeserializeSeed<'de>,

This returns Ok(Some(key)) for the next key in the map, or Ok(None) if there are no more remaining entries.

fn next_value_seed<V>(&mut self, seed: V) -> Result<V::Value, ParseError>

where V: DeserializeSeed<'de>,

This returns a Ok(value) for the next value in the map.

fn next_entry_seed<K, V>( &mut self, kseed: K, vseed: V, ) -> Result<Option<(<K as DeserializeSeed<'de>>::Value, <V as DeserializeSeed<'de>>::Value)>, Self::Error>

where K: DeserializeSeed<'de>, V: DeserializeSeed<'de>,

This returns Ok(Some((key, value))) for the next (key-value) pair in the map, or Ok(None) if there are no more remaining items.

fn next_key<K>(&mut self) -> Result<Option<K>, Self::Error>

where K: Deserialize<'de>,

This returns Ok(Some(key)) for the next key in the map, or Ok(None) if there are no more remaining entries.

fn next_value<V>(&mut self) -> Result<V, Self::Error>

where V: Deserialize<'de>,

This returns a Ok(value) for the next value in the map.

fn next_entry<K, V>(&mut self) -> Result<Option<(K, V)>, Self::Error>

where K: Deserialize<'de>, V: Deserialize<'de>,

This returns Ok(Some((key, value))) for the next (key-value) pair in the map, or Ok(None) if there are no more remaining items.

fn size_hint(&self) -> Option<usize>

Returns the number of entries remaining in the map, if known.

impl<'de> SeqAccess<'de> for KeyValueDeserializer<'de>

type Error = ParseError

The error type that can be returned if some error occurs during deserialization.

fn next_element_seed<T>( &mut self, seed: T, ) -> Result<Option<T::Value>, ParseError>

where T: DeserializeSeed<'de>,

This returns Ok(Some(value)) for the next value in the sequence, or Ok(None) if there are no more remaining items.

fn next_element<T>(&mut self) -> Result<Option<T>, Self::Error>

where T: Deserialize<'de>,

This returns Ok(Some(value)) for the next value in the sequence, or Ok(None) if there are no more remaining items.

fn size_hint(&self) -> Option<usize>

Returns the number of elements remaining in the sequence, if known.

impl<'de> VariantAccess<'de> for &mut KeyValueDeserializer<'de>

type Error = ParseError

The error type that can be returned if some error occurs during deserialization. Must match the error type of our EnumAccess.

fn unit_variant(self) -> Result<(), ParseError>

Called when deserializing a variant with no values.

fn newtype_variant_seed<T>(self, _seed: T) -> Result<T::Value, ParseError>

where T: DeserializeSeed<'de>,

Called when deserializing a variant with a single value.

fn tuple_variant<V>( self, len: usize, visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Called when deserializing a tuple-like variant.

fn struct_variant<V>( self, _fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, ParseError>

where V: Visitor<'de>,

Called when deserializing a struct-like variant.

fn newtype_variant<T>(self) -> Result<T, Self::Error>

where T: Deserialize<'de>,

Called when deserializing a variant with a single value.