Macro interoptopus::extra_type

macro_rules! extra_type {
    ($x:ty) => { ... };
}

Register an extra type with an InventoryBuilder.

You must also annotate the type with #[ffi_type] and #[repr(C)].

Note, most types are registered automatically. You only need this to pass types not directly visible in your function signatures, e.g., when accepting multiple types via a void pointer.

Example

use interoptopus::{ffi_type, Inventory, InventoryBuilder, extra_type};

#[ffi_type]
#[repr(C)]
pub struct S<T> {
    t: T
};

pub fn inventory() -> Inventory {
    InventoryBuilder::new()
        .register(extra_type!(S<f32>))
        .inventory()
}