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.

Implementors

• impl CallbackArgs for ()
• impl CallbackArgs for bool
• impl CallbackArgs for u32
• impl CallbackArgs for i32
• impl CallbackArgs for i64
• impl CallbackArgs for u64
• impl CallbackArgs for usize
• impl<T> CallbackArgs for *const T
• impl<T> CallbackArgs for *mut T
• impl CallbackArgs for [u8; 32]
• impl<T0: CallbackArgs, T1: CallbackArgs> CallbackArgs for (T0, T1)
• impl<T0: CallbackArgs, T1: CallbackArgs, T2: CallbackArgs> CallbackArgs for (T0, T1, T2)
• impl<T0: CallbackArgs, T1: CallbackArgs, T2: CallbackArgs, T3: CallbackArgs> CallbackArgs for (T0, T1, T2, T3)