refactor: simp

fzyzcjy · Mar 7, 2024 · 2ae4307 · 2ae4307
1 parent 9c9c22d
commit 2ae4307
Showing 1 changed file with 0 additions and 32 deletions.
diff --git a/frb_macros/src/lib.rs b/frb_macros/src/lib.rs
@@ -11,42 +11,10 @@ use proc_macro::*;
 #[proc_macro_attribute]
 pub fn frb(attribute: TokenStream, item: TokenStream) -> TokenStream {
     let mut output = format_frb_attribute(format!("#[frb({attribute})]"));
-    let item = strip_frb_attr(item);
     output.extend(item);
     output
 }
 
-fn strip_frb_attr(item: TokenStream) -> TokenStream {
-    item.into_iter()
-        .scan(None, |pound, tok| {
-            use TokenTree as TT;
-            match (&pound, &tok) {
-                (None, TT::Punct(punct)) if punct.as_char() == '#' => {
-                    *pound = Some(tok);
-                    Some(TokenStream::new())
-                }
-                (Some(_), TT::Group(group)) if is_frb_bracket(group) => {
-                    _ = pound.take();
-                    Some(format_frb_attribute(format!("#[{}]", group.stream())))
-                }
-                (_, TT::Group(group)) => Some(
-                    [
-                        pound.take(),
-                        Some(TT::Group(Group::new(
-                            group.delimiter(),
-                            strip_frb_attr(group.stream()),
-                        ))),
-                    ]
-                    .into_iter()
-                    .flatten()
-                    .collect(),
-                ),
-                _ => Some(tok.into()),
-            }
-        })
-        .collect()
-}
-
 fn is_frb_bracket(group: &Group) -> bool {
     matches!((group.delimiter(), group.stream().into_iter().next()), (Delimiter::Bracket, Some(TokenTree::Ident(ident))) if ident.to_string() == "frb")
 }