Trait ffi_utils::callback::CallbackArgs

pub trait CallbackArgs {
    fn default() -> Self;
}

Trait for arguments to callbacks. This is similar to Default, but allows us to implement it for foreign types that don't already implement Default.

Required Methods

fn default() -> Self

Return default value for the type, used when calling the callback with error.

Implementations on Foreign Types

impl CallbackArgs for ()

fn default() -> Self

impl CallbackArgs for bool

fn default() -> Self

impl CallbackArgs for u32

fn default() -> Self

impl CallbackArgs for i32

fn default() -> Self

impl CallbackArgs for i64

fn default() -> Self

impl CallbackArgs for u64

fn default() -> Self

impl CallbackArgs for usize

fn default() -> Self

impl<T> CallbackArgs for *const T

fn default() -> Self

impl<T> CallbackArgs for *mut T

fn default() -> Self

impl CallbackArgs for [u8; 32]

fn default() -> Self

impl<T0: CallbackArgs, T1: CallbackArgs> CallbackArgs for (T0, T1)

fn default() -> Self

impl<T0: CallbackArgs, T1: CallbackArgs, T2: CallbackArgs> CallbackArgs for (T0, T1, T2)

fn default() -> Self

impl<T0: CallbackArgs, T1: CallbackArgs, T2: CallbackArgs, T3: CallbackArgs> CallbackArgs for (T0, T1, T2, T3)

fn default() -> Self

Implementors