Struct rustc_abi::WrappingRange

pub struct WrappingRange {
    pub start: u128,
    pub end: u128,
}

Inclusive wrap-around range of valid values, that is, if start > end, it represents start..=MAX, followed by 0..=end.

That is, for an i8 primitive, a range of 254..=2 means following sequence:

254 (-2), 255 (-1), 0, 1, 2

This is intended specifically to mirror LLVM’s !range metadata semantics.

Fields

start: u128

end: u128

Implementations

impl WrappingRange

pub fn full(size: Size) -> Self

pub fn contains(&self, v: u128) -> bool

Returns true if v is contained in the range.

pub(crate) fn with_start(self, start: u128) -> Self

Returns self with replaced start

pub(crate) fn with_end(self, end: u128) -> Self

Returns self with replaced end

pub(crate) fn is_full_for(&self, size: Size) -> bool

Returns true if size completely fills the range.

Trait Implementations

impl Clone for WrappingRange

fn clone(&self) -> WrappingRange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WrappingRange

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

Formats the value using the given formatter.

impl Hash for WrappingRange

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<__CTX> for WrappingRange

where __CTX: HashStableContext,

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

impl PartialEq for WrappingRange

fn eq(&self, other: &WrappingRange) -> 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 WrappingRange

impl Eq for WrappingRange

impl StructuralPartialEq for WrappingRange

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: 32 bytes