einstellung_derive 0.1.2

Proc-Macro crate for einstellung
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

use quote::ToTokens;

pub mod generator;
pub mod parser;
pub mod transformer;

pub fn derive(input: proc_macro2::TokenStream) -> proc_macro2::TokenStream {
    let input: syn::DeriveInput = match syn::parse2(input) {
        Ok(val) => val,
        Err(e) => return e.to_compile_error(),
    };

    let parsed = match parser::parse(input) {
        Ok(p) => p,
        Err(e) => return e.write_errors(),
    };

    let model = match transformer::transform(parsed) {
        Ok(m) => m,
        Err(e) => return e.to_compile_error(),
    };

    model.to_token_stream()
}