Struct serde_json::Number

pub struct Number { /* fields omitted */ }

Represents a JSON number, whether integer or floating point.

Methods

impl Number

pub fn is_i64(&self) -> bool

Returns true if the number can be represented as i64.

pub fn is_u64(&self) -> bool

Returns true if the number can be represented as u64.

pub fn is_f64(&self) -> bool

Returns true if the number can be represented as f64.

pub fn as_i64(&self) -> Option<i64>

Returns the number represented as i64 if possible, or else None.

pub fn as_u64(&self) -> Option<u64>

Returns the number represented as u64 if possible, or else None.

pub fn as_f64(&self) -> Option<f64>

Returns the number represented as f64 if possible, or else None.

pub fn from_f64(f: f64) -> Option<Number>

Converts a finite f64 to a Number. Infinite or NaN values are not JSON numbers.

Trait Implementations

impl Clone for Number

fn clone(&self) -> Number

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq for Number

fn eq(&self, __arg_0: &Number) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Number) -> bool

This method tests for !=.

impl Display for Number

fn fmt(&self, formatter: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Debug for Number

fn fmt(&self, formatter: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Serialize for Number

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl Deserialize for Number

fn deserialize<D>(deserializer: D) -> Result<Number, D::Error> where
    D: Deserializer, 

Deserialize this value from the given Serde deserializer.

impl Deserializer for Number

type Error = Error

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

fn deserialize<V>(self, visitor: V) -> Result<V::Value, Error> where
    V: Visitor, 

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, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a bool value.

fn deserialize_u8<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u8 value.

fn deserialize_u16<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u16 value.

fn deserialize_u32<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u32 value.

fn deserialize_u64<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u64 value.

fn deserialize_i8<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i8 value.

fn deserialize_i16<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i16 value.

fn deserialize_i32<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i32 value.

fn deserialize_i64<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i64 value.

fn deserialize_f32<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a f32 value.

fn deserialize_f64<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a f64 value.

fn deserialize_char<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a char value.

fn deserialize_str<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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, Self::Error> where
    __V: Visitor, 

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_unit<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a unit value.

fn deserialize_option<__V>(
    self,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an optional value.

fn deserialize_seq<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_seq_fixed_size<__V>(
    self,
    _: usize,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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_bytes<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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, Self::Error> where
    __V: Visitor, 

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_map<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_unit_struct<__V>(
    self,
    _: &'static str,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_newtype_struct<__V>(
    self,
    _: &'static str,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_tuple_struct<__V>(
    self,
    _: &'static str,
    _: usize,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_struct<__V>(
    self,
    _: &'static str,
    _: &'static [&'static str],
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_struct_field<__V>(
    self,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting the name of a struct field.

fn deserialize_tuple<__V>(
    self,
    _: usize,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a tuple value with a particular number of elements.

fn deserialize_enum<__V>(
    self,
    _: &'static str,
    _: &'static [&'static str],
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_ignored_any<__V>(
    self,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

impl<'a> Deserializer for &'a Number

type Error = Error

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

fn deserialize<V>(self, visitor: V) -> Result<V::Value, Error> where
    V: Visitor, 

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, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a bool value.

fn deserialize_u8<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u8 value.

fn deserialize_u16<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u16 value.

fn deserialize_u32<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u32 value.

fn deserialize_u64<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a u64 value.

fn deserialize_i8<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i8 value.

fn deserialize_i16<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i16 value.

fn deserialize_i32<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i32 value.

fn deserialize_i64<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an i64 value.

fn deserialize_f32<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a f32 value.

fn deserialize_f64<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a f64 value.

fn deserialize_char<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a char value.

fn deserialize_str<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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, Self::Error> where
    __V: Visitor, 

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_unit<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a unit value.

fn deserialize_option<__V>(
    self,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting an optional value.

fn deserialize_seq<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_seq_fixed_size<__V>(
    self,
    _: usize,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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_bytes<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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, Self::Error> where
    __V: Visitor, 

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_map<__V>(self, visitor: __V) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_unit_struct<__V>(
    self,
    _: &'static str,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_newtype_struct<__V>(
    self,
    _: &'static str,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_tuple_struct<__V>(
    self,
    _: &'static str,
    _: usize,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_struct<__V>(
    self,
    _: &'static str,
    _: &'static [&'static str],
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_struct_field<__V>(
    self,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting the name of a struct field.

fn deserialize_tuple<__V>(
    self,
    _: usize,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

Hint that the Deserialize type is expecting a tuple value with a particular number of elements.

fn deserialize_enum<__V>(
    self,
    _: &'static str,
    _: &'static [&'static str],
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

fn deserialize_ignored_any<__V>(
    self,
    visitor: __V
) -> Result<__V::Value, Self::Error> where
    __V: Visitor, 

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

impl From<i8> for Number

fn from(i: i8) -> Self

Performs the conversion.

impl From<i16> for Number

fn from(i: i16) -> Self

Performs the conversion.

impl From<i32> for Number

fn from(i: i32) -> Self

Performs the conversion.

impl From<i64> for Number

fn from(i: i64) -> Self

Performs the conversion.

impl From<isize> for Number

fn from(i: isize) -> Self

Performs the conversion.

impl From<u8> for Number

fn from(u: u8) -> Self

Performs the conversion.

impl From<u16> for Number

fn from(u: u16) -> Self

Performs the conversion.

impl From<u32> for Number

fn from(u: u32) -> Self

Performs the conversion.

impl From<u64> for Number

fn from(u: u64) -> Self

Performs the conversion.

impl From<usize> for Number

fn from(u: usize) -> Self

Performs the conversion.