Enum Primitive 

pub enum Primitive {
    Int(Integer, bool),
    Float(Float),
    Pointer(AddressSpace),
}

Fundamental unit of memory access and layout.

Variants

Int(Integer, bool)

The bool is the signedness of the Integer type.

One would think we would not care about such details this low down, but some ABIs are described in terms of C types and ISAs where the integer arithmetic is done on {sign,zero}-extended registers, e.g. a negative integer passed by zero-extension will appear positive in the callee, and most operations on it will produce the wrong values.

Float(Float)

Pointer(AddressSpace)

Implementations

impl Primitive

pub fn size<C: HasDataLayout>(self, cx: &C) -> Size

pub fn default_align<C: HasDataLayout>(self, cx: &C) -> AbiAlign

The platform-specific ABI alignment of this primitive.

This is the type alignment for the corresponding built-in. In other contexts it might have different alignment.

Trait Implementations

impl Clone for Primitive

fn clone(&self) -> Primitive

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Primitive

impl Debug for Primitive

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

Formats the value using the given formatter.

impl Eq for Primitive

impl Hash for Primitive

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Primitive

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StableHash for Primitive

fn stable_hash<__Hcx: StableHashCtxt>( &self, __hcx: &mut __Hcx, __hasher: &mut StableHasher, )

impl StructuralPartialEq for Primitive

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: 8 bytes

Size for each variant:

• Int: 2 bytes
• Float: 1 byte
• Pointer: 7 bytes