alef 0.21.1

Opinionated polyglot binding generator for Rust libraries
Documentation 
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/// Rust-side bridge that holds a C vtable pointer and opaque `user_data`.
///
/// Implements `{{ trait_name }}` by forwarding calls through the vtable.
pub struct {{ bridge_name }} {
    vtable: {{ vtable_name }},
    user_data: *const std::ffi::c_void,
    cached_name: String,
    cached_version: String,
{%- if extra_fields %}
{{ extra_fields -}}
{%- endif %}
}

impl std::fmt::Debug for {{ bridge_name }} {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.debug_struct("{{ bridge_name }}")
            .field("cached_name", &self.cached_name)
            .field("cached_version", &self.cached_version)
            .finish_non_exhaustive()
    }
}

// SAFETY: The caller is responsible for ensuring `user_data` is safe to send across
// thread boundaries. This is documented in `{{ vtable_name }}` and the registration function.
unsafe impl Send for {{ bridge_name }} {}
unsafe impl Sync for {{ bridge_name }} {}