thag_proc_macros 0.2.0

Procedural macros for the thag_rs and thag_profiler crates
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
28
29
30
31
32
33

#![allow(clippy::module_name_repetitions)]
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, ItemFn};

pub fn fn_name_impl(_attr: TokenStream, item: TokenStream) -> TokenStream {
    let input = parse_macro_input!(item as ItemFn);

    // Get function details
    let fn_name = &input.sig.ident;
    let inputs = &input.sig.inputs;
    let output = &input.sig.output;
    let generics = &input.sig.generics;
    let where_clause = &input.sig.generics.where_clause;
    let vis = &input.vis;
    let block = &input.block;
    let attrs = &input.attrs;

    let fn_name_str = fn_name.to_string();

    let result = quote! {
        #(#attrs)*
        #vis fn #fn_name #generics(#inputs) #output #where_clause {

            let fn_name = #fn_name_str;

            #block

        }
    };

    result.into()
}