Struct postcard::Deserializer

pub struct Deserializer<'de> { /* fields omitted */ }

A structure for deserializing a postcard message. For now, Deserializer does not implement the same Flavor interface as the serializer does, as messages are typically easier to deserialize in place. This may change in the future for consistency, or to support items that cannot be deserialized in-place, such as compressed message types

Methods

impl<'de> Deserializer<'de>

pub fn from_bytes(input: &'de [u8]) -> Self

Obtain a Deserializer from a slice of bytes

Trait Implementations

impl<'de, 'a> Deserializer<'de> for &'a mut Deserializer<'de>

type Error = Error

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

fn is_human_readable(&self) -> bool

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

fn deserialize_any<V>(self, _visitor: V) -> Result<V::Value> 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> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a bool value.

fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i8 value.

fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i16 value.

fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i32 value.

fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i64 value.

fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u8 value.

fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u16 value.

fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u32 value.

fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u64 value.

fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a f32 value.

fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a f64 value.

fn deserialize_char<V>(self, visitor: V) -> Result<V::Value> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a char value.

fn deserialize_str<V>(self, visitor: V) -> Result<V::Value> 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> 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> 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> 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> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an optional value.

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

impl<'de, 'a> EnumAccess<'de> for &'a mut Deserializer<'de>

type Error = Error

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

type Variant = Self

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

fn variant_seed<V: DeserializeSeed<'de>>(
    self,
    seed: V
) -> Result<(V::Value, Self)>

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, 'a> VariantAccess<'de> for &'a mut Deserializer<'de>

type Error = Error

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<()>

Called when deserializing a variant with no values.

fn newtype_variant_seed<V: DeserializeSeed<'de>>(
    self,
    seed: V
) -> Result<V::Value>

Called when deserializing a variant with a single value.

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

Called when deserializing a tuple-like variant.

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

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.