Enum FeaturePolicy 

#[non_exhaustive]
pub enum FeaturePolicy {
    Strict,
    AllowEmulation,
    BestEffort,
}

Behavior when a requested feature is not natively supported.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Strict

Reject unsupported, unknown, or emulated features.

AllowEmulation

Permit documented emulation but reject ignored features.

BestEffort

Permit degradation when it is reported as a warning.

Trait Implementations

impl Clone for FeaturePolicy

fn clone(&self) -> FeaturePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FeaturePolicy

impl Debug for FeaturePolicy

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

Formats the value using the given formatter.

impl Default for FeaturePolicy

fn default() -> FeaturePolicy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FeaturePolicy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FeaturePolicy

impl PartialEq for FeaturePolicy

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for FeaturePolicy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FeaturePolicy