as_base

This crate allows directly accessing fields within a trait object similar to C++ public base classes. No virtual dispatch is involved, the base object always begins at the same address as the enclosing object. ```rust use as_base::*;

struct BaseType { x: u64, }

trait MyTrait: AsBase {}

[derive(AsBase)]

[repr(C)]

struct Implementor { pub base: BaseType, }

impl MyTrait for Implementor {}

fn main() { let x = Implementor { base: BaseType { x: 42 }, }; let dynreference = &x as &dyn MyTrait; asserteq!(dynreference.asbase().x, 42) } ```