Struct rustc_target::abi::Layout[−][src]

pub struct Layout {
    pub fields: FieldsShape,
    pub variants: Variants,
    pub abi: Abi,
    pub largest_niche: Option<Niche>,
    pub align: AbiAndPrefAlign,
    pub size: Size,
}

Fields

fields: FieldsShape
Expand description

Says where the fields are located within the layout.

variants: Variants
Expand description

Encodes information about multi-variant layouts. Even with Multiple variants, a layout still has its own fields! Those are then shared between all variants. One of them will be the discriminant, but e.g. generators can have more.

To access all fields of this layout, both fields and the fields of the active variant must be taken into account.

abi: Abi
Expand description

The abi defines how this data is passed between functions, and it defines value restrictions via valid_range.

Note that this is entirely orthogonal to the recursive structure defined by variants and fields; for example, ManuallyDrop<Result<isize, isize>> has Abi::ScalarPair! So, even with non-Aggregate abi, fields and variants have to be taken into account to find all fields of this layout.

largest_niche: Option<Niche>
Expand description

The leaf scalar with the largest number of invalid values (i.e. outside of its valid_range), if it exists.

align: AbiAndPrefAlignsize: Size

Implementations

impl Layout[src]

pub fn scalar<C: HasDataLayout>(cx: &C, scalar: Scalar) -> Self[src]

Trait Implementations

impl Debug for Layout[src]

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

Formats the value using the given formatter. Read more

impl Hash for Layout[src]

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

Feeds this value into the given Hasher. Read more

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 1.3.0[src]

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

impl<__CTX> HashStable<__CTX> for Layout where
    __CTX: HashStableContext, [src]

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)[src]

impl PartialEq<Layout> for Layout[src]

fn eq(&self, other: &Layout) -> bool[src]

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

fn ne(&self, other: &Layout) -> bool[src]

This method tests for !=.

impl Eq for Layout[src]

impl StructuralEq for Layout[src]

impl StructuralPartialEq for Layout[src]

Auto Trait Implementations

impl RefUnwindSafe for Layout

impl Send for Layout

impl Sync for Layout

impl Unpin for Layout

impl UnwindSafe for Layout

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> MaybeResult<T> for T[src]

type Error = !

pub fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T[src]

pub fn to_result(Self) -> Result<T, <T as MaybeResult<T>>::Error>[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.