From dc2f0a86fd9c4f256a6809370e29bfe2631ebd8d Mon Sep 17 00:00:00 2001
From: Micha Reiser <micha@reiser.io>
Date: Tue, 9 Dec 2025 11:12:35 +0100
Subject: [PATCH] Include more details in Tokens 'offset is inside token' panic
 message (#21860)

---
 crates/ruff_python_ast/src/token/tokens.rs | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/crates/ruff_python_ast/src/token/tokens.rs b/crates/ruff_python_ast/src/token/tokens.rs
index edc7e27463..7ca096d9b0 100644
--- a/crates/ruff_python_ast/src/token/tokens.rs
+++ b/crates/ruff_python_ast/src/token/tokens.rs
@@ -154,9 +154,7 @@ impl Tokens {
             // the tokens which is valid as well.
             assert!(
                 offset >= last.end(),
-                "Offset {:?} is inside a token range {:?}",
-                offset,
-                last.range()
+                "Offset {offset:?} is inside token `{last:?}`",
             );
         }
         before
@@ -181,9 +179,7 @@ impl Tokens {
             // the tokens which is valid as well.
             assert!(
                 offset <= first.start(),
-                "Offset {:?} is inside a token range {:?}",
-                offset,
-                first.range()
+                "Offset {offset:?} is inside token `{first:?}`",
             );
         }
 
@@ -391,7 +387,7 @@ mod tests {
     }
 
     #[test]
-    #[should_panic(expected = "Offset 5 is inside a token range 4..7")]
+    #[should_panic(expected = "Offset 5 is inside token `Name 4..7`")]
     fn tokens_after_offset_inside_token() {
         let tokens = new_tokens(TEST_CASE_WITH_GAP.into_iter());
         tokens.after(TextSize::new(5));
@@ -453,7 +449,7 @@ mod tests {
     }
 
     #[test]
-    #[should_panic(expected = "Offset 5 is inside a token range 4..7")]
+    #[should_panic(expected = "Offset 5 is inside token `Name 4..7`")]
     fn tokens_before_offset_inside_token() {
         let tokens = new_tokens(TEST_CASE_WITH_GAP.into_iter());
         tokens.before(TextSize::new(5));
@@ -505,14 +501,14 @@ mod tests {
     }
 
     #[test]
-    #[should_panic(expected = "Offset 5 is inside a token range 4..7")]
+    #[should_panic(expected = "Offset 5 is inside token `Name 4..7`")]
     fn tokens_in_range_start_offset_inside_token() {
         let tokens = new_tokens(TEST_CASE_WITH_GAP.into_iter());
         tokens.in_range(TextRange::new(5.into(), 10.into()));
     }
 
     #[test]
-    #[should_panic(expected = "Offset 6 is inside a token range 4..7")]
+    #[should_panic(expected = "Offset 6 is inside token `Name 4..7`")]
     fn tokens_in_range_end_offset_inside_token() {
         let tokens = new_tokens(TEST_CASE_WITH_GAP.into_iter());
         tokens.in_range(TextRange::new(0.into(), 6.into()));