Enum rustc_middle::ty::layout::ValidityRequirement

pub enum ValidityRequirement {
    Inhabited,
    Zero,
    UninitMitigated0x01Fill,
    Uninit,
}

Used in check_validity_requirement to indicate the kind of initialization that is checked to be valid

Variants

Inhabited

Zero

UninitMitigated0x01Fill

The return value of mem::uninitialized, 0x01 (unless -Zstrict-init-checks is on, in which case it’s the same as Uninit).

Uninit

True uninitialized memory.

Implementations

impl ValidityRequirement

pub fn from_intrinsic(intrinsic: Symbol) -> Option<Self>

Trait Implementations

impl Clone for ValidityRequirement

fn clone(&self) -> ValidityRequirement

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ValidityRequirement

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

Formats the value using the given formatter.

impl Display for ValidityRequirement

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

Formats the value using the given formatter.

impl Hash for ValidityRequirement

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<'__ctx> HashStable<StableHashingContext<'__ctx>> for ValidityRequirement

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )

impl PartialEq<ValidityRequirement> for ValidityRequirement

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ValidityRequirement

impl Eq for ValidityRequirement

impl StructuralEq for ValidityRequirement

impl StructuralPartialEq for ValidityRequirement

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:

• Inhabited: 0 bytes
• Zero: 0 bytes
• UninitMitigated0x01Fill: 0 bytes
• Uninit: 0 bytes