Struct SimpleValue 

pub struct SimpleValue(/* private fields */);

A CBOR simple value (major type 7, values 0-23 and 32-255).

In CBOR, booleans and null are not separate types but specific simple values: false is 20, true is 21, null is 22. The constants FALSE, TRUE, and NULL are provided for these. Values 24-31 are reserved by the CBOR specification and cannot be constructed. Note that CBOR also defines undefined (simple value 23), but CBOR::Core does not give it any special treatment.

Implementations

impl SimpleValue

pub const FALSE: Self

CBOR false (simple value 20).

pub const TRUE: Self

CBOR true (simple value 21).

pub const NULL: Self

CBOR null (simple value 22).

pub fn new(value: impl TryInto<Self, Error = Error>) -> Self

Create a simple value from any type that implements TryInto<SimpleValue>.

This is a convenience wrapper around TryInto that unwraps the result.

Panics

Panics if value is in the reserved range 24-31. Use from_u8 for a fallible alternative.

pub const fn from_u8(value: u8) -> Result<Self>

Create a simple value from a raw number. Returns Err for reserved values 24-31.

pub const fn from_bool(value: bool) -> Self

Create from a boolean.

pub const fn data_type(&self) -> DataType

Return the DataType of this simple value.

pub const fn to_bool(&self) -> Result<bool>

Convert to bool. Returns Err for non-boolean simple values.

pub const fn to_u8(&self) -> u8

Return the raw simple value number.

Trait Implementations

impl Clone for SimpleValue

fn clone(&self) -> SimpleValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimpleValue

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

Formats the value using the given formatter.

impl Default for SimpleValue

fn default() -> SimpleValue

Returns the “default value” for a type.

impl From<()> for SimpleValue

fn from(_: ()) -> Self

Converts to this type from the input type.

impl From<SimpleValue> for Value

fn from(value: SimpleValue) -> Self

Converts to this type from the input type.

impl<'a> From<SimpleValue> for ValueKey<'a>

fn from(value: SimpleValue) -> ValueKey<'a>

Converts to this type from the input type.

impl From<SimpleValue> for u8

fn from(value: SimpleValue) -> Self

Converts to this type from the input type.

impl From<bool> for SimpleValue

fn from(value: bool) -> Self

Converts to this type from the input type.

impl Hash for SimpleValue

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SimpleValue

fn cmp(&self, other: &SimpleValue) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for SimpleValue

fn eq(&self, other: &SimpleValue) -> 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 PartialOrd for SimpleValue

fn partial_cmp(&self, other: &SimpleValue) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<&Value> for SimpleValue

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &Value) -> Result<Self>

Performs the conversion.

impl TryFrom<SimpleValue> for bool

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: SimpleValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for SimpleValue

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self>

Performs the conversion.

impl TryFrom<u8> for SimpleValue

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for SimpleValue

impl Eq for SimpleValue

impl StructuralPartialEq for SimpleValue