[][src]Enum rustc_target::abi::Variants

pub enum Variants {
    Single {
        index: VariantIdx,
    },
    Multiple {
        tag: Scalar,
        tag_encoding: TagEncoding,
        tag_field: usize,
        variants: IndexVec<VariantIdx, Layout>,
    },
}

Variants

Single

Single enum variants, structs/tuples, unions, and all non-ADTs.

Fields of Single

index: VariantIdx
Multiple

Enum-likes with more than one inhabited variant: each variant comes with a discriminant (usually the same as the variant index but the user can assign explicit discriminant values). That discriminant is encoded as a tag on the machine. The layout of each variant is a struct, and they all have space reserved for the tag. For enums, the tag is the sole field of the layout.

Fields of Multiple

tag: Scalartag_encoding: TagEncodingtag_field: usizevariants: IndexVec<VariantIdx, Layout>

Trait Implementations

impl Debug for Variants[src]

impl Eq for Variants[src]

impl Hash for Variants[src]

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

impl PartialEq<Variants> for Variants[src]

impl StructuralEq for Variants[src]

impl StructuralPartialEq for Variants[src]

Auto Trait Implementations

impl RefUnwindSafe for Variants

impl Send for Variants

impl Sync for Variants

impl Unpin for Variants

impl UnwindSafe for Variants

Blanket Implementations

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

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

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

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

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

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

type Error = !

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.

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.