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extern crate proc_macro;
use proc_macro::{TokenStream, TokenTree, Ident, Punct, Spacing, Span};
#[proc_macro]
pub fn make_struct(input: TokenStream) -> TokenStream {
match input.into_iter().next().unwrap() {
TokenTree::Ident(ident) => {
vec![
TokenTree::Ident(Ident::new("struct", Span::call_site())),
TokenTree::Ident(Ident::new_raw(&ident.to_string(), Span::call_site())),
TokenTree::Punct(Punct::new(';', Spacing::Alone))
].into_iter().collect()
}
_ => panic!()
}
}
#[proc_macro]
pub fn make_bad_struct(input: TokenStream) -> TokenStream {
match input.into_iter().next().unwrap() {
TokenTree::Ident(ident) => {
vec![
TokenTree::Ident(Ident::new_raw("struct", Span::call_site())),
TokenTree::Ident(Ident::new(&ident.to_string(), Span::call_site())),
TokenTree::Punct(Punct::new(';', Spacing::Alone))
].into_iter().collect()
}
_ => panic!()
}
}
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