Struct OwnedArg 

pub struct OwnedArg {
    ty: Option<Type>,
    bytes: Box<[u8]>,
}

An argument for an FFI call.

Fields

ty: Option<Type>

The type descriptor for this argument.

bytes: Box<[u8]>

Corresponding bytes for the value.

Implementations

impl OwnedArg

pub fn new(ty: FfiType, bytes: Box<[u8]>) -> Self

Instantiates an argument from a type descriptor and bytes.

fn ptr(&self) -> ArgPtr

Creates a libffi argument pointer pointing to this argument’s bytes. NB: Since libffi::middle::Arg ignores the lifetime of the reference it’s derived from, it is up to the caller to ensure the OwnedArg is not dropped before unsafely calling libffi::middle::Cif::call()!

Trait Implementations

impl Clone for OwnedArg

fn clone(&self) -> OwnedArg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OwnedArg

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

Formats the value using the given formatter.

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: 32 bytes