Struct TypeLayout

pub struct TypeLayout {
    pub size_bits: u64,
    pub field_alignment_bits: u64,
    pub pointer_alignment_bits: u64,
    pub required_alignment_bits: u64,
}

The computed layout of a type.

Fields

size_bits: u64

The size of the type in bits.

This is the value returned by sizeof and C and std::mem::size_of in Rust (but in bits instead of bytes). This is a multiple of pointer_alignment_bits.

field_alignment_bits: u64

The alignment of the type, in bits, when used as a field in a record.

This is usually the value returned by _Alignof in C, but there are some edge cases in GCC where _Alignof returns a smaller value.

pointer_alignment_bits: u64

The alignment, in bits, of valid pointers to this type.

This is the value returned by std::mem::align_of in Rust (but in bits instead of bytes). size_bits is a multiple of this value.

required_alignment_bits: u64

The required alignment of the type in bits.

This value is only used by MSVC targets. It is 8 on all other targets. On MSVC targets, this value restricts the effects of #pragma pack except in some cases involving bit-fields.

Trait Implementations

impl Clone for TypeLayout

fn clone(&self) -> TypeLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TypeLayout

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

Formats the value using the given formatter.

impl Default for TypeLayout

fn default() -> TypeLayout

Returns the “default value” for a type.

impl Into<()> for TypeLayout

fn into(self)

Converts this type into the (usually inferred) input type.

impl Layout for TypeLayout

type TypeLayout = TypeLayout

The type used to encode the layout of the type itself.

type FieldLayout = FieldLayout

The type used to encode the layout of a field in a record.

type OpaqueLayout = TypeLayout

The type used to encode the layout of an opaque type.

impl PartialEq for TypeLayout

fn eq(&self, other: &TypeLayout) -> 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 Copy for TypeLayout

impl Eq for TypeLayout

impl StructuralPartialEq for TypeLayout