Struct rustc_middle::ty::ScalarInt

#[repr(packed)]pub struct ScalarInt {
    data: u128,
    size: u8,
}

The raw bytes of a simple value.

This is a packed struct in order to allow this type to be optimally embedded in enums (like Scalar).

Fields

data: u128

The first size bytes of data are the value. Do not try to read less or more bytes than that. The remaining bytes must be 0.

size: u8

Implementations

impl ScalarInt

pub const TRUE: ScalarInt

pub const FALSE: ScalarInt

pub const ZST: ScalarInt

pub fn size(self) -> Size

pub(in ty::consts::int) fn check_data(
    self
)

Make sure the data fits in size. This is guaranteed by all constructors here, but having had this check saved us from bugs many times in the past, so keeping it around is definitely worth it.

pub fn null(size: Size) -> Self

pub fn is_null(self) -> bool

pub(crate) fn ptr_sized_op<E>(
    self,
    dl: &TargetDataLayout,
    f_int: impl FnOnce(u64) -> Result<u64, E>
) -> Result<Self, E>

pub fn try_from_uint(i: impl Into<u128>, size: Size) -> Option<Self>

pub fn try_from_int(i: impl Into<i128>, size: Size) -> Option<Self>

pub fn assert_bits(self, target_size: Size) -> u128

pub fn to_bits(self, target_size: Size) -> Result<u128, Size>

Trait Implementations

impl Clone for ScalarInt

pub fn clone(&self) -> ScalarInt

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ScalarInt

impl Debug for ScalarInt

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

Formats the value using the given formatter.

impl<D: Decoder> Decodable<D> for ScalarInt

pub fn decode(d: &mut D) -> Result<ScalarInt, D::Error>

impl<S: Encoder> Encodable<S> for ScalarInt

pub fn encode(&self, s: &mut S) -> Result<(), S::Error>

impl Eq for ScalarInt

impl From<IeeeFloat<DoubleS>> for ScalarInt

pub fn from(f: Double) -> Self

Performs the conversion.

impl From<IeeeFloat<SingleS>> for ScalarInt

pub fn from(f: Single) -> Self

Performs the conversion.

impl From<bool> for ScalarInt

pub fn from(u: bool) -> Self

Performs the conversion.

impl From<char> for ScalarInt

pub fn from(c: char) -> Self

Performs the conversion.

impl From<u128> for ScalarInt

pub fn from(u: u128) -> Self

Performs the conversion.

impl From<u16> for ScalarInt

pub fn from(u: u16) -> Self

Performs the conversion.

impl From<u32> for ScalarInt

pub fn from(u: u32) -> Self

Performs the conversion.

impl From<u64> for ScalarInt

pub fn from(u: u64) -> Self

Performs the conversion.

impl From<u8> for ScalarInt

pub fn from(u: u8) -> Self

Performs the conversion.

impl Hash for ScalarInt

pub fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<CTX> HashStable<CTX> for ScalarInt

pub fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher)

impl LowerHex for ScalarInt

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

Formats the value using the given formatter.

impl Ord for ScalarInt

pub fn cmp(&self, other: &ScalarInt) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<ScalarInt> for ScalarInt

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

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

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

This method tests for !=.

impl PartialOrd<ScalarInt> for ScalarInt

pub fn partial_cmp(&self, other: &ScalarInt) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

pub fn lt(&self, other: &ScalarInt) -> bool

This method tests less than (for self and other) and is used by the < operator.

pub fn le(&self, other: &ScalarInt) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

pub fn gt(&self, other: &ScalarInt) -> bool

This method tests greater than (for self and other) and is used by the > operator.

pub fn ge(&self, other: &ScalarInt) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for ScalarInt

impl StructuralPartialEq for ScalarInt

impl TryFrom<ScalarInt> for u8

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for u16

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for u32

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for u64

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for u128

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for char

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for Single

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl TryFrom<ScalarInt> for Double

type Error = Size

The type returned in the event of a conversion error.

pub fn try_from(int: ScalarInt) -> Result<Self, Size>

Performs the conversion.

impl UpperHex for ScalarInt

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

Formats the value using the given formatter.