Class Func

crates/wasmtime/src/runtime/component/func.rs:34–37

here for the C API.

#[derive(Copy, Clone, Debug)]
#[repr(C)] // here for the C API.
pub struct Func {
    instance: Instance,
    index: ExportIndex,
}

// Double-check that the C representation in `component/instance.h` matches our
// in-Rust representation here in terms of size/alignment/etc.