Enum Feature 

pub enum Feature {
    Enable,
    Disable,
    Keep,
    Error,
}

Set the behavior for a feature flag during conditional translation.

• Keep means that the feature flag will be left as-is. This is useful for incremental compilation, e.g. for generating shader variants
• Error means that unspecified feature flags will trigger a CondCompError::UnexpectedFeatureFlag.

Default is Disable.

Variants

Enable

Disable

Keep

Error

Trait Implementations

impl Clone for Feature

fn clone(&self) -> Feature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Feature

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

Formats the value using the given formatter.

impl Default for Feature

fn default() -> Feature

Returns the “default value” for a type.

impl From<bool> for Feature

fn from(value: bool) -> Self

Converts to this type from the input type.

impl PartialEq for Feature

fn eq(&self, other: &Feature) -> 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 Copy for Feature

impl Eq for Feature

impl StructuralPartialEq for Feature