Struct libffi::high::arity0::Closure0

pub struct Closure0<'a, R> { /* fields omitted */ }

An immutable, typed closure with the given argument and result types.

Implementations

impl<'a, R: CType> Closure0<'a, R>

pub fn new<Callback>(callback: &'a Callback) -> Self where
    Callback: Fn() -> R + 'a, 

Constructs a typed closure callable from C from a Rust closure.

impl<'a, R> Closure0<'a, R>

pub fn code_ptr(&self) -> &extern "C" fn() -> R

Gets the C code pointer that is used to invoke the closure.

pub fn from_parts<U>(
    cif: Cif0<R>,
    callback: Callback0<U, R>,
    userdata: &'a U
) -> Self

Constructs a typed closure callable from C from a CIF describing the calling convention for the resulting function, a callback for the function to call, and userdata to pass to the callback.

impl<'a, R> Closure0<'a, R>

pub fn new_with_cif<Callback>(cif: Cif0<R>, callback: &'a Callback) -> Self where
    Callback: Fn() -> R + 'a, 

Constructs a typed closure callable from C from a CIF describing the calling convention for the resulting function and the Rust closure to call.