Struct rustc_target::abi::VariantIdx

pub struct VariantIdx { /* fields omitted */ }

Methods

impl VariantIdx

pub const MAX_AS_U32: u32

pub const MAX: VariantIdx

pub fn from_usize(value: usize) -> Self

pub fn from_u32(value: u32) -> Self

pub const fn from_u32_const(value: u32) -> Self

Hacky variant of from_u32 for use in constants. This version checks the "max" constraint by using an invalid array dereference.

pub const unsafe fn from_u32_unchecked(value: u32) -> Self

pub fn index(self) -> usize

Extracts the value of this index as an integer.

pub fn as_u32(self) -> u32

Extracts the value of this index as a u32.

pub fn as_usize(self) -> usize

Extracts the value of this index as a usize.

Trait Implementations

impl Clone for VariantIdx

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Ord for VariantIdx

fn cmp(&self, other: &VariantIdx) -> 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 From<VariantIdx> for u32

fn from(v: VariantIdx) -> u32

Performs the conversion.

impl From<VariantIdx> for usize

fn from(v: VariantIdx) -> usize

Performs the conversion.

impl From<usize> for VariantIdx

fn from(value: usize) -> Self

Performs the conversion.

impl From<u32> for VariantIdx

fn from(value: u32) -> Self

Performs the conversion.

impl Eq for VariantIdx

impl Copy for VariantIdx

impl PartialOrd<VariantIdx> for VariantIdx

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

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

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

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

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

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

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

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

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

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

impl PartialEq<VariantIdx> for VariantIdx

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

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

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

This method tests for !=.

impl Debug for VariantIdx

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

Formats the value using the given formatter.

impl Hash for VariantIdx

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].

impl Step for VariantIdx

fn steps_between(start: &Self, end: &Self) -> Option<usize>

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

likely to be replaced by finer-grained traits

Returns the number of steps between two step objects. The count is inclusive of start and exclusive of end.

fn replace_one(&mut self) -> Self

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

likely to be replaced by finer-grained traits

Replaces this step with 1, returning itself.

fn replace_zero(&mut self) -> Self

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

likely to be replaced by finer-grained traits

Replaces this step with 0, returning itself.

fn add_one(&self) -> Self

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

likely to be replaced by finer-grained traits

Adds one to this step, returning the result.

fn sub_one(&self) -> Self

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

likely to be replaced by finer-grained traits

Subtracts one to this step, returning the result.

fn add_usize(&self, u: usize) -> Option<Self>

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

likely to be replaced by finer-grained traits

Adds a usize, returning None on overflow.

impl Encodable for VariantIdx

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

impl Decodable for VariantIdx

fn decode<D: Decoder>(d: &mut D) -> Result<Self, D::Error>

impl Idx for VariantIdx

fn new(value: usize) -> Self

fn index(self) -> usize

fn increment_by(&mut self, amount: usize)