Fix

crates/ruff_linter/src/rules/ruff/rules/dotless_with_suffix.rs

@@ -47,7 +47,7 @@ impl AlwaysFixableViolation for DotlessWithSuffix {
 pub(crate) fn dotless_with_suffix(checker: &mut Checker, call: &ExprCall) {
     let (func, arguments) = (&call.func, &call.arguments);
 
-    if is_path_with_suffix_call(checker.semantic(), func) {
+    if !is_path_with_suffix_call(checker.semantic(), func) {
         return;
     }
 
@@ -85,7 +85,7 @@ fn single_string_literal_argument(arguments: &Arguments) -> Option<&ExprStringLi
     }
 
     match arguments.find_argument("suffix", 0)? {
-        Expr::StringLiteral(string) => Some(&string),
+        Expr::StringLiteral(string) => Some(string),
         _ => None,
     }
 }
@@ -95,12 +95,14 @@ fn add_leading_dot_fix(string: &ExprStringLiteral) -> Option<Fix> {
 
     // |r"foo"
     let before_prefix = first_part.range.start();
+
     // r|"foo"
     let prefix_length = first_part.flags.prefix().as_str().len();
-    let after_prefix = before_prefix.checked_add((prefix_length as u32).into())?;
+    let after_prefix = before_prefix.checked_add(u32::try_from(prefix_length).ok()?.into())?;
+
     // r"|foo"
-    let quote_length = first_part.flags.is_triple_quoted().then(|| 3).unwrap_or(1);
-    let after_leading_quote = after_prefix.checked_add((quote_length as u32).into())?;
+    let quote_length = first_part.flags.quote_str().len();
+    let after_leading_quote = after_prefix.checked_add(u32::try_from(quote_length).ok()?.into())?;
 
     let edit = Edit::insertion(".".to_string(), after_leading_quote);