Struct libffi::high::arity2::ClosureOnce2
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pub struct ClosureOnce2<A, B, R> { /* fields omitted */ }
A one-shot, typed closure with the given argument and result types.
Methods
impl<A: CType, B: CType, R: CType> ClosureOnce2<A, B, R>
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fn new<Callback>(callback: Callback) -> Self where Callback: FnOnce(A, B) -> R + Any
Constructs a typed closure callable from C from a Rust closure.
impl<A: Copy, B: Copy, R> ClosureOnce2<A, B, R>
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fn new_with_cif<Callback>(cif: Cif2<A, B, R>, callback: Callback) -> Self where Callback: FnOnce(A, B) -> R + Any
Constructs a one-shot closure callable from C from a CIF describing the calling convention for the resulting function and the Rust closure to call.
impl<A, B, R> ClosureOnce2<A, B, R>
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fn code_ptr(&self) -> &extern fn(_: A, _: B) -> R
Gets the C code pointer that is used to invoke the closure.
fn from_parts<U: Any>(cif: Cif2<A, B, R>,
callback: CallbackOnce2<U, A, B, R>,
userdata: U)
-> Self
callback: CallbackOnce2<U, A, B, R>,
userdata: U)
-> Self
Constructs a one-shot 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.