Struct ResolvedValueConstraint

pub struct ResolvedValueConstraint<T> {
    pub exact: Option<T>,
    pub ideal: Option<T>,
}

A constraint specifying a single accepted value.

W3C Spec Compliance

There exists no direct corresponding type in the W3C “Media Capture and Streams” spec, since the ValueConstraint<T> type aims to be a generalization over multiple types in the W3C spec:

Rust	W3C
ResolvedValueConstraint<bool>	ConstrainBooleanParameters

Fields

exact: Option<T>

The exact required value for this property.

This is a required value.

ideal: Option<T>

The ideal (target) value for this property.

This is an optional value.

Implementations

impl<T> ResolvedValueConstraint<T>

pub fn exact<U>(self, exact: U) -> Self

where Option<T>: From<U>,

Consumes self, returning a corresponding constraint with the exact required value set to exact.

pub fn ideal<U>(self, ideal: U) -> Self

where Option<T>: From<U>,

Consumes self, returning a corresponding constraint with the ideal required value set to ideal.

pub fn is_required(&self) -> bool

Returns true if value.is_some() is true for any of its required values, otherwise false.

pub fn is_empty(&self) -> bool

Returns true if value.is_none() is true for all of its values, otherwise false.

pub fn to_required_only(&self) -> Self

where T: Clone,

Returns a corresponding constraint containing only required values.

pub fn into_required_only(self) -> Self

Consumes `self, returning a corresponding constraint containing only required values.

Trait Implementations

impl<T: Clone> Clone for ResolvedValueConstraint<T>

fn clone(&self) -> ResolvedValueConstraint<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for ResolvedValueConstraint<T>

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

Formats the value using the given formatter.

impl<T> Default for ResolvedValueConstraint<T>

fn default() -> Self

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for ResolvedValueConstraint<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> Display for ResolvedValueConstraint<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueConstraint<String>

where String: PartialEq<String>,

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance( &self, setting: Option<&'a String>, ) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueConstraint<bool>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance( &self, setting: Option<&'a String>, ) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a bool>> for ResolvedValueConstraint<bool>

where bool: PartialEq<bool>,

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance( &self, setting: Option<&'a bool>, ) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueConstraint<bool>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance(&self, setting: Option<&'a f64>) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueConstraint<f64>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance(&self, setting: Option<&'a f64>) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueConstraint<u64>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance(&self, setting: Option<&'a f64>) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueConstraint<bool>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance(&self, setting: Option<&'a i64>) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueConstraint<f64>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance(&self, setting: Option<&'a i64>) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueConstraint<u64>

type Error = SettingFitnessDistanceError

The type returned in the event of a computation error.

fn fitness_distance(&self, setting: Option<&'a i64>) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

impl From<ResolvedValueConstraint<String>> for MediaTrackConstraint

fn from(constraint: ResolvedValueConstraint<String>) -> Self

Converts to this type from the input type.

impl From<ResolvedValueConstraint<String>> for ResolvedMediaTrackConstraint

fn from(constraint: ResolvedValueConstraint<String>) -> Self

Converts to this type from the input type.

impl<T> From<ResolvedValueConstraint<T>> for ValueConstraint<T>

fn from(constraint: ResolvedValueConstraint<T>) -> Self

Converts to this type from the input type.

impl From<ResolvedValueConstraint<bool>> for MediaTrackConstraint

fn from(constraint: ResolvedValueConstraint<bool>) -> Self

Converts to this type from the input type.

impl From<ResolvedValueConstraint<bool>> for ResolvedMediaTrackConstraint

fn from(constraint: ResolvedValueConstraint<bool>) -> Self

Converts to this type from the input type.

impl<T: PartialEq> PartialEq for ResolvedValueConstraint<T>

fn eq(&self, other: &ResolvedValueConstraint<T>) -> 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<T> Serialize for ResolvedValueConstraint<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq> Eq for ResolvedValueConstraint<T>

impl<T> StructuralPartialEq for ResolvedValueConstraint<T>