Enum DivergingFallbackBehavior 

pub enum DivergingFallbackBehavior {
    ToUnit,
    ToNever,
    NoFallback,
}

Variants

ToUnit

Always fallback to () (aka “always spontaneous decay”)

ToNever

Always fallback to ! (which should be equivalent to never falling back + not making never-to-any coercions unless necessary)

NoFallback

Don’t fallback at all

Trait Implementations

impl Clone for DivergingFallbackBehavior

fn clone(&self) -> DivergingFallbackBehavior

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DivergingFallbackBehavior

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for DivergingFallbackBehavior

fn decode(__decoder: &mut __D) -> Self

impl<__E: SpanEncoder> Encodable<__E> for DivergingFallbackBehavior

fn encode(&self, __encoder: &mut __E)

impl<__CTX> HashStable<__CTX> for DivergingFallbackBehavior

where __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq for DivergingFallbackBehavior

fn eq(&self, other: &DivergingFallbackBehavior) -> 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 PrintAttribute for DivergingFallbackBehavior

fn should_render(&self) -> bool

Whether or not this will render as something meaningful, or if it’s skipped (which will force the containing struct to also skip printing a comma and the field name).

fn print_attribute(&self, __p: &mut Printer)

impl Copy for DivergingFallbackBehavior

impl StructuralPartialEq for DivergingFallbackBehavior

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• ToUnit: 0 bytes
• ToNever: 0 bytes
• NoFallback: 0 bytes