Enum serde_cbor::value::Value[][src]

pub enum Value {
    Null,
    Bool(bool),
    Integer(i128),
    Float(f64),
    Bytes(Vec<u8>),
    Text(String),
    Array(Vec<Value>),
    Map(BTreeMap<Value, Value>),
    Tag(u64, Box<Value>),
    // some variants omitted
}
Expand description

The Value enum, a loosely typed way of representing any valid CBOR value.

Maps are sorted according to the canonical ordering described in RFC 7049 bis. Therefore values are unambiguously serialized to a canonical form of CBOR from the same RFC.

Variants

Null

Represents the absence of a value or the value undefined.

Bool

Represents a boolean value.

Tuple Fields of Bool

0: bool
Integer

Integer CBOR numbers.

The biggest value that can be represented is 2^64 - 1. While the smallest value is -2^64. Values outside this range can’t be serialized and will cause an error.

Tuple Fields of Integer

0: i128
Float

Represents a floating point value.

Tuple Fields of Float

0: f64
Bytes

Represents a byte string.

Tuple Fields of Bytes

0: Vec<u8>
Text

Represents an UTF-8 encoded string.

Tuple Fields of Text

0: String
Array

Represents an array of values.

Tuple Fields of Array

0: Vec<Value>
Map

Represents a map.

Maps are also called tables, dictionaries, hashes, or objects (in JSON). While any value can be used as a CBOR key it is better to use only one type of key in a map to avoid ambiguity. If floating point values are used as keys they are compared bit-by-bit for equality. If arrays or maps are used as keys the comparisons to establish canonical order may be slow and therefore insertion and retrieval of values will be slow too.

Tuple Fields of Map

0: BTreeMap<Value, Value>
Tag

Represents a tagged value

Tuple Fields of Tag

0: u641: Box<Value>

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Deserialize this value from the given Serde deserializer. Read more

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

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

This method tests for !=.

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.