Struct rustc_target::abi::Scalar

pub struct Scalar {
    pub value: Primitive,
    pub valid_range: RangeInclusive<u128>,
}

Information about one scalar component of a Rust type.

Fields

value: Primitive

valid_range: RangeInclusive<u128>

Inclusive wrap-around range of valid values, that is, if start > end, it represents start..=max_value(), 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.

Methods

impl Scalar

pub fn is_bool(&self) -> bool

pub fn valid_range_exclusive<C: HasDataLayout>(&self, cx: &C) -> Range<u128>

Returns the valid range as a x..y range.

If x and y are equal, the range is full, not empty.

Trait Implementations

impl Eq for Scalar

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<Scalar> for Scalar

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

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

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

This method tests for !=.

impl Debug for Scalar

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

Formats the value using the given formatter.

impl Hash for Scalar

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,

Feeds a slice of this type into the given [Hasher].