Struct rustc_middle::mir::interpret::allocation::InitMask

pub struct InitMask {
    blocks: Vec<u64>,
    len: Size,
}

A bitmask where each bit refers to the byte with the same index. If the bit is true, the byte is initialized. If it is false the byte is uninitialized.

Fields

blocks: Vec<u64>

len: Size

Implementations

impl InitMask

pub const BLOCK_SIZE: u64

pub fn new(size: Size, state: bool) -> Self

pub fn is_range_initialized(
    &self,
    start: Size,
    end: Size
) -> Result<(), Range<Size>>

Checks whether the range start..end (end-exclusive) is entirely initialized.

Returns Ok(()) if it's initialized. Otherwise returns a range of byte indexes for the first contiguous span of the uninitialized access.

pub fn set_range(&mut self, start: Size, end: Size, new_state: bool)

pub fn set_range_inbounds(&mut self, start: Size, end: Size, new_state: bool)

pub fn get(&self, i: Size) -> bool

pub fn set(&mut self, i: Size, new_state: bool)

pub(in mir::interpret::allocation) fn set_bit(
    &mut self,
    block: usize,
    bit: usize,
    new_state: bool
)

pub fn grow(&mut self, amount: Size, new_state: bool)

Trait Implementations

impl Clone for InitMask

pub fn clone(&self) -> InitMask

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for InitMask

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

Formats the value using the given formatter.

impl<'tcx, __D: TyDecoder<'tcx>> Decodable<__D> for InitMask

pub fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<'tcx, __E: TyEncoder<'tcx>> Encodable<__E> for InitMask

pub fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Eq for InitMask

impl Hash for InitMask

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<StableHashingContext<'__ctx>> for InitMask

pub fn hash_stable(
    &self,
    __hcx: &mut StableHashingContext<'__ctx>,
    __hasher: &mut StableHasher
)

impl Ord for InitMask

pub fn cmp(&self, other: &InitMask) -> 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<InitMask> for InitMask

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

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

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

This method tests for !=.

impl PartialOrd<InitMask> for InitMask

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

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

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

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

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

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

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

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

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

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

impl StructuralEq for InitMask

impl StructuralPartialEq for InitMask