Enum TraitBoundModifier

pub enum TraitBoundModifier {
    None,
    Maybe,
    MaybeConst,
}

A set of modifiers applied to a trait.

Variants

None

Marks the absence of a modifier.

Maybe

Indicates that the trait bound relaxes a trait bound applied to a parameter by default, e.g. T: Sized?, the Sized trait is required for all generic type parameters by default unless specified otherwise with this modifier.

MaybeConst

Indicates that the trait bound must be applicable in both a run-time and a compile-time context.

Trait Implementations

impl Clone for TraitBoundModifier

fn clone(&self) -> TraitBoundModifier

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TraitBoundModifier

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TraitBoundModifier

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for TraitBoundModifier

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 PartialEq for TraitBoundModifier

fn eq(&self, other: &TraitBoundModifier) -> 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 Serialize for TraitBoundModifier

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TraitBoundModifier

impl Eq for TraitBoundModifier

impl StructuralPartialEq for TraitBoundModifier

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:

• None: 0 bytes
• Maybe: 0 bytes
• MaybeConst: 0 bytes