Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    Number(Number),
    String(String),
    Array(Vec<Value>),
    Object(Object),
}

Represents any valid BEVE value.

This enum can represent all BEVE types and enables dynamic/schemaless deserialization of BEVE data.

Variants

Null

Represents a null value.

Bool(bool)

Represents a boolean.

Number(Number)

Represents a number (signed, unsigned, or float).

String(String)

Represents a string.

Array(Vec<Value>)

Represents an array of values.

Object(Object)

Represents an object with string or integer keys.

Implementations

impl Value

pub fn is_null(&self) -> bool

Returns true if the value is null.

pub fn is_bool(&self) -> bool

Returns true if the value is a boolean.

pub fn is_number(&self) -> bool

Returns true if the value is a number.

pub fn is_string(&self) -> bool

Returns true if the value is a string.

pub fn is_array(&self) -> bool

Returns true if the value is an array.

pub fn is_object(&self) -> bool

Returns true if the value is an object.

pub fn as_bool(&self) -> Option<bool>

Returns the boolean value, if this is a Bool.

pub fn as_number(&self) -> Option<&Number>

Returns a reference to the number, if this is a Number.

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

Returns the value as an i64, if applicable.

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

Returns the value as a u64, if applicable.

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

Returns the value as an f64, if applicable.

pub fn as_str(&self) -> Option<&str>

Returns a reference to the string, if this is a String.

pub fn as_array(&self) -> Option<&Vec<Value>>

Returns a reference to the array, if this is an Array.

pub fn as_array_mut(&mut self) -> Option<&mut Vec<Value>>

Returns a mutable reference to the array, if this is an Array.

pub fn as_object(&self) -> Option<&Object>

Returns a reference to the object, if this is an Object.

pub fn as_object_mut(&mut self) -> Option<&mut Object>

Returns a mutable reference to the object, if this is an Object.

pub fn get(&self, index: usize) -> Option<&Value>

Index into an array. Returns None if not an array or index out of bounds.

pub fn get_key(&self, key: &str) -> Option<&Value>

Index into an object by string key. Returns None if not an object or key not found.

pub fn get_int_key(&self, key: i128) -> Option<&Value>

Index into an object by integer key. Returns None if not an object or key not found.

pub fn get_uint_key(&self, key: u128) -> Option<&Value>

Index into an object by unsigned integer key. Returns None if not an object or key not found.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Value

fn default() -> Value

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Value

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<'de> Deserializer<'de> for &'de Value

type Error = ValueError

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

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

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

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

Hint that the Deserialize type is expecting a bool value.

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

Hint that the Deserialize type is expecting an i8 value.

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

Hint that the Deserialize type is expecting an i16 value.

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

Hint that the Deserialize type is expecting an i32 value.

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

Hint that the Deserialize type is expecting an i64 value.

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

Hint that the Deserialize type is expecting an i128 value.

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

Hint that the Deserialize type is expecting a u8 value.

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

Hint that the Deserialize type is expecting a u16 value.

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

Hint that the Deserialize type is expecting a u32 value.

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

Hint that the Deserialize type is expecting a u64 value.

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

Hint that the Deserialize type is expecting an u128 value.

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

Hint that the Deserialize type is expecting a f32 value.

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

Hint that the Deserialize type is expecting a f64 value.

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

Hint that the Deserialize type is expecting a char value.

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

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

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

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

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

Hint that the Deserialize type is expecting an optional value.

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

Hint that the Deserialize type is expecting a unit value.

fn deserialize_unit_struct<V: Visitor<'de>>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, Self::Error>

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

fn deserialize_newtype_struct<V: Visitor<'de>>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, Self::Error>

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

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

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

fn deserialize_tuple<V: Visitor<'de>>( self, _len: usize, visitor: V, ) -> Result<V::Value, Self::Error>

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: Visitor<'de>>( self, _name: &'static str, _len: usize, visitor: V, ) -> Result<V::Value, Self::Error>

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

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

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

fn deserialize_struct<V: Visitor<'de>>( self, _name: &'static str, _fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>

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

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

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

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

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

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

fn is_human_readable(&self) -> bool

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

impl<'de> Deserializer<'de> for Value

type Error = ValueError

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

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

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

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

Hint that the Deserialize type is expecting a bool value.

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

Hint that the Deserialize type is expecting an i8 value.

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

Hint that the Deserialize type is expecting an i16 value.

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

Hint that the Deserialize type is expecting an i32 value.

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

Hint that the Deserialize type is expecting an i64 value.

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

Hint that the Deserialize type is expecting an i128 value.

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

Hint that the Deserialize type is expecting a u8 value.

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

Hint that the Deserialize type is expecting a u16 value.

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

Hint that the Deserialize type is expecting a u32 value.

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

Hint that the Deserialize type is expecting a u64 value.

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

Hint that the Deserialize type is expecting an u128 value.

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

Hint that the Deserialize type is expecting a f32 value.

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

Hint that the Deserialize type is expecting a f64 value.

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

Hint that the Deserialize type is expecting a char value.

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

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

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

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

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

Hint that the Deserialize type is expecting an optional value.

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

Hint that the Deserialize type is expecting a unit value.

fn deserialize_unit_struct<V: Visitor<'de>>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, Self::Error>

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

fn deserialize_newtype_struct<V: Visitor<'de>>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, Self::Error>

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

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

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

fn deserialize_tuple<V: Visitor<'de>>( self, _len: usize, visitor: V, ) -> Result<V::Value, Self::Error>

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: Visitor<'de>>( self, _name: &'static str, _len: usize, visitor: V, ) -> Result<V::Value, Self::Error>

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

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

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

fn deserialize_struct<V: Visitor<'de>>( self, _name: &'static str, _fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>

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

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

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

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

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

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

fn is_human_readable(&self) -> bool

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

impl Display for Value

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&str> for Value

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<()> for Value

fn from(_: ()) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<Option<T>> for Value

fn from(opt: Option<T>) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(s: String) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<Vec<T>> for Value

fn from(v: Vec<T>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f32> for Value

fn from(n: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(n: f64) -> Self

Converts to this type from the input type.

impl From<i128> for Value

fn from(n: i128) -> Self

Converts to this type from the input type.

impl From<i16> for Value

fn from(n: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(n: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(n: i64) -> Self

Converts to this type from the input type.

impl From<i8> for Value

fn from(n: i8) -> Self

Converts to this type from the input type.

impl From<u128> for Value

fn from(n: u128) -> Self

Converts to this type from the input type.

impl From<u16> for Value

fn from(n: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Value

fn from(n: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Value

fn from(n: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Value

fn from(n: u8) -> Self

Converts to this type from the input type.

impl Index<&str> for Value

type Output = Value

The returned type after indexing.

fn index(&self, key: &str) -> &Self::Output

Performs the indexing (container[index]) operation.

impl Index<usize> for Value

type Output = Value

The returned type after indexing.

fn index(&self, index: usize) -> &Self::Output

Performs the indexing (container[index]) operation.

impl PartialEq for Value

fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Value

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Value