1//! This module defines a macro that lets you go from a raw pointer to a struct
2//! to a raw pointer to a field of the struct.
3
4macro_rules! generate_addr_of_methods {
5 (
6 impl<$($gen:ident)*> $struct_name:ty {$(
7 $(#[$attrs:meta])*
8 $vis:vis unsafe fn $fn_name:ident(self: NonNull<Self>) -> NonNull<$field_type:ty> {
9 &self$(.$field_name:tt)+
10 }
11 )*}
12 ) => {
13 impl<$($gen)*> $struct_name {$(
14 $(#[$attrs])*
15 $vis unsafe fn $fn_name(me: ::core::ptr::NonNull<Self>) -> ::core::ptr::NonNull<$field_type> {
16 let me = me.as_ptr();
17 let field = ::std::ptr::addr_of_mut!((*me) $(.$field_name)+ );
18 ::core::ptr::NonNull::new_unchecked(field)
19 }
20 )*}
21 };
22}
23