Enum ReturnAbi 

pub enum ReturnAbi {
    Void,
    Single(Type),
    Pair(ReturnSlot, ReturnSlot),
    PackedPair(PairSlot),
    PackedFirst(PairSlot, ReturnSlot),
    PackedLast(ReturnSlot, PairSlot),
    PackedQuads(PairSlot, PairSlot),
    Unpacked(Vec<Type>),
    Sret(Vec<Type>),
}

Describes how a list of WebAssembly values is returned by a native ABI.

Every non-void variant retains the values it classified so signature construction, packing, and unpacking all use the same ABI rules.

Variants

Void

No return values.

Single(Type)

One value returned directly.

Pair(ReturnSlot, ReturnSlot)

Two values returned independently in registers.

PackedPair(PairSlot)

Two 32-bit values packed into one register.

PackedFirst(PairSlot, ReturnSlot)

The first two 32-bit values are packed into one register.

PackedLast(ReturnSlot, PairSlot)

The last two 32-bit values are packed into one register.

PackedQuads(PairSlot, PairSlot)

Four 32-bit values packed pairwise into two registers.

Unpacked(Vec<Type>)

Values returned independently in an aggregate of registers.

Sret(Vec<Type>)

Values returned indirectly through a structure-return pointer.

Trait Implementations

impl Clone for ReturnAbi

fn clone(&self) -> ReturnAbi

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReturnAbi

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

Formats the value using the given formatter.

impl PartialEq for ReturnAbi

fn eq(&self, other: &ReturnAbi) -> 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 Eq for ReturnAbi

impl StructuralPartialEq for ReturnAbi