ffi-convert-derive 0.7.0

Macros implementations of CReprOf, AsRust, CDrop traits from ffi-convert
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

use proc_macro::TokenStream;
use quote::quote;

pub fn impl_rawpointerconverter_macro(input: &syn::DeriveInput) -> TokenStream {
    let struct_name = &input.ident;

    quote!(
        impl RawPointerConverter<# struct_name> for # struct_name {
            fn into_raw_pointer(self) -> *const # struct_name {
                ffi_convert::convert_into_raw_pointer(self)
            }

            fn into_raw_pointer_mut(self) -> *mut # struct_name {
                ffi_convert::convert_into_raw_pointer_mut(self)
            }

            unsafe fn from_raw_pointer_mut(input: *mut # struct_name) -> Result<# struct_name, ffi_convert::UnexpectedNullPointerError> {
                ffi_convert::take_back_from_raw_pointer_mut(input)
            }

            unsafe fn from_raw_pointer(input: *const # struct_name) -> Result<# struct_name, ffi_convert::UnexpectedNullPointerError> {
                ffi_convert::take_back_from_raw_pointer(input)
            }

        }
    ).into()
}