From 0a27bee814f5590403bc429355cb8e9f9a57ebfb Mon Sep 17 00:00:00 2001
From: Luke Street <luke@street.dev>
Date: Sat, 13 Sep 2025 12:46:00 -0600
Subject: [PATCH] Fix license allow list and clippy warning

---
 bin/src/main.rs | 4 ++--
 deny.toml       | 2 +-
 lib/src/lib.rs  | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/bin/src/main.rs b/bin/src/main.rs
index ff0430f..1b7074d 100644
--- a/bin/src/main.rs
+++ b/bin/src/main.rs
@@ -21,7 +21,7 @@ struct Args {
 
 fn main() -> Result<(), &'static str> {
     let args: Args = from_env();
-    return if let Some(symbol) = demangle(args.symbol.as_str(), &DemangleOptions {
+    if let Some(symbol) = demangle(args.symbol.as_str(), &DemangleOptions {
         omit_empty_parameters: !args.keep_void,
         mw_extensions: args.mw_extensions,
     }) {
@@ -29,5 +29,5 @@ fn main() -> Result<(), &'static str> {
         Ok(())
     } else {
         Err("Failed to demangle symbol")
-    };
+    }
 }
diff --git a/deny.toml b/deny.toml
index 827de76..5a71998 100644
--- a/deny.toml
+++ b/deny.toml
@@ -92,7 +92,7 @@ allow = [
     "MIT",
     "Apache-2.0",
     "BSD-3-Clause",
-    "Unicode-DFS-2016",
+    "Unicode-3.0",
 ]
 # The confidence threshold for detecting a license from license text.
 # The higher the value, the more closely the license text must be to the
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 5d6eb35..85fa074 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -426,8 +426,8 @@ pub fn demangle(mut str: &str, options: &DemangleOptions) -> Option<String> {
         }
         let rest = &rest[1..];
         if let Some((_, rest2)) = parse_digits(rest) {
-            if rest2.starts_with('@') {
-                let fn_demangled = demangle(&rest2[1..], options)?;
+            if let Some(stripped) = rest2.strip_prefix('@') {
+                let fn_demangled = demangle(stripped, options)?;
                 thunk_res = Some(format!("virtual thunk to {fn_demangled}"));
             }
         }