Struct rustc_middle::ty::consts::int::ScalarInt

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

Expand description

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

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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.

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pub fn null(size: Size) -> Self

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pub fn is_null(self) -> bool

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

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

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

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

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pub fn try_to_machine_usize<'tcx>(&self, tcx: TyCtxt<'tcx>) -> Result<u64, Size>

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pub fn try_to_uint(self, size: Size) -> Result<u128, Size>

Tries to convert the ScalarInt to an unsigned integer of the given size. Fails if the size of the ScalarInt is unequal to size and returns the ScalarInts size in that case.

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pub fn try_to_u8(self) -> Result<u8, Size>

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pub fn try_to_u16(self) -> Result<u16, Size>

Tries to convert the ScalarInt to u16. Fails if the size of the ScalarInt in not equal to Size { raw: 2 } and returns the size value of the ScalarInt in that case.

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pub fn try_to_u32(self) -> Result<u32, Size>

Tries to convert the ScalarInt to u32. Fails if the size of the ScalarInt in not equal to Size { raw: 4 } and returns the size value of the ScalarInt in that case.

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pub fn try_to_u64(self) -> Result<u64, Size>

Tries to convert the ScalarInt to u64. Fails if the size of the ScalarInt in not equal to Size { raw: 8 } and returns the size value of the ScalarInt in that case.

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pub fn try_to_u128(self) -> Result<u128, Size>

Tries to convert the ScalarInt to u128. Fails if the size of the ScalarInt in not equal to Size { raw: 16 } and returns the size value of the ScalarInt in that case.

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pub fn try_to_int(self, size: Size) -> Result<i128, Size>

Tries to convert the ScalarInt to a signed integer of the given size. Fails if the size of the ScalarInt is unequal to size and returns the ScalarInts size in that case.

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pub fn try_to_i8(self) -> Result<i8, Size>

Tries to convert the ScalarInt to i8. Fails if the size of the ScalarInt is unequal to Size { raw: 1 } and returns the ScalarInts size in that case.

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pub fn try_to_i16(self) -> Result<i16, Size>

Tries to convert the ScalarInt to i16. Fails if the size of the ScalarInt is unequal to Size { raw: 2 } and returns the ScalarInts size in that case.

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pub fn try_to_i32(self) -> Result<i32, Size>

Tries to convert the ScalarInt to i32. Fails if the size of the ScalarInt is unequal to Size { raw: 4 } and returns the ScalarInts size in that case.

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pub fn try_to_i64(self) -> Result<i64, Size>

Tries to convert the ScalarInt to i64. Fails if the size of the ScalarInt is unequal to Size { raw: 8 } and returns the ScalarInts size in that case.

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pub fn try_to_i128(self) -> Result<i128, Size>

Tries to convert the ScalarInt to i128. Fails if the size of the ScalarInt is unequal to Size { raw: 16 } and returns the ScalarInts size in that case.

Trait Implementations

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impl Clone for ScalarInt

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fn clone(&self) -> ScalarInt

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for ScalarInt

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

Formats the value using the given formatter. Read more

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

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fn decode(d: &mut D) -> ScalarInt

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impl Display for ScalarInt

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

Formats the value using the given formatter. Read more

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

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

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impl From<IeeeFloat<DoubleS>> for ScalarInt

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fn from(f: Double) -> Self

Converts to this type from the input type.

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impl From<IeeeFloat<SingleS>> for ScalarInt

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fn from(f: Single) -> Self

Converts to this type from the input type.

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impl<Tag> From<ScalarInt> for Scalar<Tag>

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fn from(ptr: ScalarInt) -> Self

Converts to this type from the input type.

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impl From<bool> for ScalarInt

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fn from(u: bool) -> Self

Converts to this type from the input type.

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impl From<char> for ScalarInt

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fn from(c: char) -> Self

Converts to this type from the input type.

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impl From<u128> for ScalarInt

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fn from(u: u128) -> Self

Converts to this type from the input type.

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impl From<u16> for ScalarInt

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fn from(u: u16) -> Self

Converts to this type from the input type.

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impl From<u32> for ScalarInt

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fn from(u: u32) -> Self

Converts to this type from the input type.

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impl From<u64> for ScalarInt

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fn from(u: u64) -> Self

Converts to this type from the input type.

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impl From<u8> for ScalarInt

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fn from(u: u8) -> Self

Converts to this type from the input type.

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impl Hash for ScalarInt

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

Feeds this value into the given Hasher. Read more

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

Feeds a slice of this type into the given Hasher. Read more

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impl<CTX> HashStable<CTX> for ScalarInt

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

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impl LowerHex for ScalarInt

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

Formats the value using the given formatter.

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impl Ord for ScalarInt

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

This method returns an Ordering between self and other. Read more

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fn max(self, other: Self) -> Self

Compares and returns the maximum of two values. Read more

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fn min(self, other: Self) -> Self

Compares and returns the minimum of two values. Read more

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fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval. Read more

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impl PartialEq<ScalarInt> for ScalarInt

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

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

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

This method tests for !=.

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impl PartialOrd<ScalarInt> for ScalarInt

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

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

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

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

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

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

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

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

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

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

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impl TryFrom<ScalarInt> for u8

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for u16

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for u32

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for u64

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for u128

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for bool

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for char

type Error = CharTryFromScalarInt

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for Single

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl TryFrom<ScalarInt> for Double

type Error = Size

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl UpperHex for ScalarInt

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

Formats the value using the given formatter.

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impl StructuralEq for ScalarInt

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impl StructuralPartialEq for ScalarInt

Auto Trait Implementations

impl RefUnwindSafe for ScalarInt

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,

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fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

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default fn fingerprint_style() -> FingerprintStyle

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default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint

This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more

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default fn to_debug_str(&self, Ctxt) -> String

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default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>

This method tries to recover the query key from the given DepNode, something which is needed when forcing DepNodes during red-green evaluation. The query system will only call this method if fingerprint_style() is not FingerprintStyle::Opaque. It is always valid to return None here, in which case incremental compilation will treat the query as having changed instead of forcing it. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> MaybeResult<T> for T

type Error = !

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fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T> ToString for T where
T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<'a, T> Captures<'a> for T where
T: ?Sized,

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: 17 bytes

Struct rustc_middle::ty::consts::int::ScalarInt

Fields

Implementations

impl ScalarInt

pub const TRUE: ScalarInt = ScalarInt { data: 1_u128, size: 1 }

pub const FALSE: ScalarInt = ScalarInt { data: 0_u128, size: 1 }

pub const ZST: ScalarInt = ScalarInt { data: 0_u128, size: 0 }

pub fn size(self) -> Size

fn check_data(self)

pub fn null(size: Size) -> Self

pub fn is_null(self) -> bool

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>

pub fn try_to_machine_usize<'tcx>(&self, tcx: TyCtxt<'tcx>) -> Result<u64, Size>

pub fn try_to_uint(self, size: Size) -> Result<u128, Size>

pub fn try_to_u8(self) -> Result<u8, Size>

pub fn try_to_u16(self) -> Result<u16, Size>

pub fn try_to_u32(self) -> Result<u32, Size>

pub fn try_to_u64(self) -> Result<u64, Size>

pub fn try_to_u128(self) -> Result<u128, Size>

pub fn try_to_int(self, size: Size) -> Result<i128, Size>

pub fn try_to_i8(self) -> Result<i8, Size>

pub fn try_to_i16(self) -> Result<i16, Size>

pub fn try_to_i32(self) -> Result<i32, Size>

pub fn try_to_i64(self) -> Result<i64, Size>

pub fn try_to_i128(self) -> Result<i128, Size>

Trait Implementations

impl Clone for ScalarInt

fn clone(&self) -> ScalarInt

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

impl Debug for ScalarInt

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

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

fn decode(d: &mut D) -> ScalarInt

impl Display for ScalarInt

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

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

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

impl From<IeeeFloat<DoubleS>> for ScalarInt

fn from(f: Double) -> Self

impl From<IeeeFloat<SingleS>> for ScalarInt

fn from(f: Single) -> Self

impl<Tag> From<ScalarInt> for Scalar<Tag>

fn from(ptr: ScalarInt) -> Self

impl From<bool> for ScalarInt

fn from(u: bool) -> Self

impl From<char> for ScalarInt

fn from(c: char) -> Self

impl From<u128> for ScalarInt

fn from(u: u128) -> Self

impl From<u16> for ScalarInt

fn from(u: u16) -> Self

impl From<u32> for ScalarInt

fn from(u: u32) -> Self

impl From<u64> for ScalarInt

fn from(u: u64) -> Self

impl From<u8> for ScalarInt

fn from(u: u8) -> Self

impl Hash for ScalarInt

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

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

impl<CTX> HashStable<CTX> for ScalarInt

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

impl LowerHex for ScalarInt

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

impl Ord for ScalarInt

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

fn max(self, other: Self) -> Self

fn min(self, other: Self) -> Self

fn clamp(self, min: Self, max: Self) -> Self

impl PartialEq<ScalarInt> for ScalarInt

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

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

impl PartialOrd<ScalarInt> for ScalarInt

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

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

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

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

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

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

impl<T> Any for T where
T: 'static + ?Sized,

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,

fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

impl<T, U> Into<U> for T where
U: From<T>,