Enum cranelift_codegen::machinst::vcode::VCodeConstantData

source · [−]

pub enum VCodeConstantData {
    Pool(Constant, ConstantData),
    WellKnown(&'static [u8]),
    Generated(ConstantData),
}

Expand description

Identify the different types of constant that can be inserted into VCodeConstants. Tracking these separately instead of as raw byte buffers allows us to avoid some duplication.

Variants

`Pool(Constant, ConstantData)`

A constant already present in the Cranelift IR ConstantPool.

`WellKnown(&'static [u8])`

A reference to a well-known constant value that is statically encoded within the compiler.

`Generated(ConstantData)`

A constant value generated during lowering; the value may depend on the instruction context which makes it difficult to de-duplicate–if possible, use other variants.

Implementations

impl VCodeConstantData

pub fn as_slice(&self) -> &[u8 ]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

Retrieve the constant data as a byte slice.

pub fn alignment(&self) -> u32

Calculate the alignment of the constant data.

Auto Trait Implementations

impl RefUnwindSafe for VCodeConstantData

impl Send for VCodeConstantData

impl Sync for VCodeConstantData

impl Unpin for VCodeConstantData

impl UnwindSafe for VCodeConstantData

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.