Enum rustc::middle::const_val::ConstInt

pub enum ConstInt {
    I8(i8),
    I16(i16),
    I32(i32),
    I64(i64),
    I128(i128),
    Isize(ConstIsize),
    U8(u8),
    U16(u16),
    U32(u32),
    U64(u64),
    U128(u128),
    Usize(ConstUsize),
}

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Variants

I8(i8)

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I16(i16)

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I32(i32)

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I64(i64)

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I128(i128)

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Isize(ConstIsize)

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U8(u8)

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U16(u16)

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U32(u32)

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U64(u64)

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U128(u128)

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Usize(ConstUsize)

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Methods

impl ConstInt

pub fn new_unsigned(val: u128, ty: UintTy, usize_ty: UintTy) -> Option<ConstInt>

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Creates a new unsigned ConstInt with matching type while also checking that overflow does not happen.

pub fn new_signed(val: i128, ty: IntTy, isize_ty: IntTy) -> Option<ConstInt>

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Creates a new signed ConstInt with matching type while also checking that overflow does not happen.

pub fn new_unsigned_truncating(
    val: u128,
    ty: UintTy,
    usize_ty: UintTy
) -> ConstInt

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Creates a new unsigned ConstInt with matching type.

pub fn new_signed_truncating(val: i128, ty: IntTy, isize_ty: IntTy) -> ConstInt

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Creates a new signed ConstInt with matching type.

pub fn description(&self) -> &'static str

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Description of the type, not the value

pub fn to_u128_unchecked(self) -> u128

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Erases the type and returns a u128. This is not the same as -5i8 as u128 but as -5i8 as i128 as u128

pub fn to_u32(&self) -> Option<u32>

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Converts the value to a u32 if it's in the range 0...std::u32::MAX

pub fn to_u64(&self) -> Option<u64>

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Converts the value to a u64 if it's in the range 0...std::u64::MAX

pub fn to_u128(&self) -> Option<u128>

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Converts the value to a u128 if it's in the range 0...std::u128::MAX

pub fn is_negative(&self) -> bool

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pub fn try_cmp(self, rhs: ConstInt) -> Result<Ordering, ConstMathErr>

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Compares the values if they are of the same type

pub fn wrap_incr(self) -> ConstInt

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Adds 1 to the value and wraps around if the maximum for the type is reached

pub fn int_type(self) -> IntType

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Trait Implementations

impl<'tcx> HashStable<StableHashingContext<'tcx>> for ConstInt

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

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impl Encodable for ConstInt

fn encode<__S>(&self, __arg_0: &mut __S) -> Result<(), <__S as Encoder>::Error> where
    __S: Encoder, 

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impl Sub<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the - operator.

fn sub(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

Performs the - operation.

impl Shr<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

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fn shr(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

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impl PartialOrd<ConstInt> for ConstInt

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

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

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

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

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

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

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

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

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

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

impl Add<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the + operator.

fn add(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

Performs the + operation.

impl PartialEq<ConstInt> for ConstInt

fn eq(&self, __arg_0: &ConstInt) -> bool

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

fn ne(&self, __arg_0: &ConstInt) -> bool

This method tests for !=.

impl Ord for ConstInt

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

impl Decodable for ConstInt

fn decode<__D>(__arg_0: &mut __D) -> Result<ConstInt, <__D as Decoder>::Error> where
    __D: Decoder, 

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impl Copy for ConstInt

impl Not for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the ! operator.

fn not(self) -> Result<ConstInt, ConstMathErr>

Performs the unary ! operation.

impl Div<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

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fn div(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

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impl Debug for ConstInt

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for ConstInt

impl Mul<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the * operator.

fn mul(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

Performs the * operation.

impl Hash for ConstInt

fn hash<__H>(&self, __arg_0: &mut __H) where
    __H: Hasher, 

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].

impl BitOr<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the | operator.

fn bitor(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

Performs the | operation.

impl Rem<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

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fn rem(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

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impl Neg for ConstInt

type Output = Result<ConstInt, ConstMathErr>

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fn neg(self) -> Result<ConstInt, ConstMathErr>

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impl BitAnd<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the & operator.

fn bitand(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

Performs the & operation.

impl Display for ConstInt

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

Formats the value using the given formatter.

impl Shl<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

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fn shl(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

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impl Clone for ConstInt

fn clone(&self) -> ConstInt

Returns a copy of the value.

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

Performs copy-assignment from source.

impl BitXor<ConstInt> for ConstInt

type Output = Result<ConstInt, ConstMathErr>

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: ConstInt) -> Result<ConstInt, ConstMathErr>

Performs the ^ operation.