Enum rustc_target::abi::Abi

pub enum Abi {
    Uninhabited,
    Scalar(Scalar),
    ScalarPair(Scalar, Scalar),
    Vector {
        element: Scalar,
        count: u64,
    },
    Aggregate {
        sized: bool,
    },
}

Describes how values of the type are passed by target ABIs, in terms of categories of C types there are ABI rules for.

Variants

Uninhabited

Scalar(Scalar)

Tuple Fields of Scalar

0: Scalar

ScalarPair(Scalar, Scalar)

Tuple Fields of ScalarPair

0: Scalar1: Scalar

Vector

Fields of Vector

element: Scalarcount: u64

Aggregate

Fields of Aggregate

sized: bool

If true, the size is exact, otherwise it’s only a lower bound.

Implementations

impl Abi

pub fn is_unsized(&self) -> bool

Returns true if the layout corresponds to an unsized type.

pub fn is_signed(&self) -> bool

Returns true if this is a single signed integer scalar

pub fn is_uninhabited(&self) -> bool

Returns true if this is an uninhabited type

pub fn is_scalar(&self) -> bool

Returns true is this is a scalar type

Trait Implementations

impl Clone for Abi

fn clone(&self) -> Abi

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Abi

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

Formats the value using the given formatter.

impl Hash for Abi

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<__CTX> HashStable<__CTX> for Abi where
    __CTX: HashStableContext, 

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

impl PartialEq<Abi> for Abi

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

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

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

This method tests for !=.

impl Copy for Abi

impl Eq for Abi

impl StructuralEq for Abi

impl StructuralPartialEq for Abi

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 88 bytes

Size for each variant:

• Uninhabited: 0 bytes
• Scalar: 47 bytes
• ScalarPair: 87 bytes
• Vector: 55 bytes
• Aggregate: 1 byte