Enum serde_cbor::Value
source · [−]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(bool)
Represents a boolean value.
Integer(i128)
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.
Float(f64)
Represents a floating point value.
Bytes(Vec<u8>)
Represents a byte string.
Text(String)
Represents an UTF-8 encoded string.
Array(Vec<Value>)
Represents an array of values.
Map(BTreeMap<Value, Value>)
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.
Tag(u64, Box<Value>)
Represents a tagged value
Trait Implementations
sourceimpl<'de> Deserialize<'de> for Value
impl<'de> Deserialize<'de> for Value
sourcefn deserialize<D>(deserializer: D) -> Result<Value, D::Error> where
D: Deserializer<'de>,
fn deserialize<D>(deserializer: D) -> Result<Value, D::Error> where
D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl Ord for Value
impl Ord for Value
1.21.0 · sourcefn max(self, other: Self) -> Self
fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
1.21.0 · sourcefn min(self, other: Self) -> Self
fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
1.50.0 · sourcefn clamp(self, min: Self, max: Self) -> Self where
Self: PartialOrd<Self>,
fn clamp(self, min: Self, max: Self) -> Self where
Self: PartialOrd<Self>,
Restrict a value to a certain interval. Read more
sourceimpl PartialOrd<Value> for Value
impl PartialOrd<Value> for Value
sourcefn partial_cmp(&self, other: &Value) -> Option<Ordering>
fn partial_cmp(&self, other: &Value) -> Option<Ordering>
This method returns an ordering between self and other values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
impl Eq for Value
Auto Trait Implementations
impl RefUnwindSafe for Value
impl Send for Value
impl Sync for Value
impl Unpin for Value
impl UnwindSafe for Value
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more