viewbuilder_macros/
lib.rs

1use proc_macro::TokenStream;
2use quote::quote;
3use syn::{parse_macro_input, ItemFn};
4
5#[proc_macro_attribute]
6pub fn main(_attrs: TokenStream, input: TokenStream) -> TokenStream {
7    let input = parse_macro_input!(input as ItemFn);
8    let stmts = input.block.stmts;
9    let expanded = quote! {
10        fn main() {
11            let viewbuilder_macros_ui = viewbuilder::native::UserInterface::default();
12            let _guard = viewbuilder_macros_ui.enter();
13
14            #(#stmts)*
15
16            viewbuilder_macros_ui.run()
17        }
18    };
19    expanded.into()
20}