embedded_cli_macros/
lib.rs

1use proc_macro::TokenStream;
2use quote::quote;
3use syn::parse_macro_input;
4
5mod command;
6mod group;
7mod processor;
8mod utils;
9
10#[proc_macro_derive(Command, attributes(command, arg))]
11pub fn derive_command(input: TokenStream) -> TokenStream {
12    let input = parse_macro_input!(input);
13
14    let output = match command::derive_command(input) {
15        Ok(output) => output,
16        Err(e) => return e.write_errors().into(),
17    };
18
19    // wrap with anonymous scope
20    quote! {
21        const _: () = {
22            extern crate embedded_cli as _cli;
23            use _cli::__private::io as _io;
24
25            #output
26        };
27    }
28    .into()
29}
30
31#[proc_macro_derive(CommandGroup, attributes(group))]
32pub fn derive_command_group(input: TokenStream) -> TokenStream {
33    let input = parse_macro_input!(input);
34
35    let output = match group::derive_command_group(input) {
36        Ok(output) => output,
37        Err(e) => return e.write_errors().into(),
38    };
39
40    // wrap with anonymous scope
41    quote! {
42        const _: () = {
43            extern crate embedded_cli as _cli;
44            use _cli::__private::io as _io;
45
46            #output
47        };
48    }
49    .into()
50}
embedded_cli_macros/lib.rs

embedded_cli_macros/
lib.rs
