Function JSObjectGetPrivate 

pub unsafe extern "C-unwind" fn JSObjectGetPrivate(
    object: JSObjectRef,
) -> *mut c_void

Available on crate features JSBase and JSObjectRef only.

Gets an object’s private data.

Parameter object: A JSObject whose private data you want to get.

Returns: A void* that is the object’s private data, if the object has private data, otherwise NULL.

Safety

object must be a valid pointer.