chore: resolve escaped string formatting issue

tooling/nargo_fmt/src/visitor/expr.rs

@@ -90,7 +90,9 @@ impl FmtVisitor<'_> {
                 format!("{}[{}]", formatted_collection, formatted_index)
             }
             ExpressionKind::Literal(literal) => match literal {
-                Literal::Integer(_) => slice!(self, span.start(), span.end()).to_string(),
+                Literal::Integer(_) | Literal::Bool(_) | Literal::Str(_) | Literal::FmtStr(_) => {
+                    slice!(self, span.start(), span.end()).to_string()
+                }
                 Literal::Array(ArrayLiteral::Repeated { repeated_element, length }) => {
                     format!("[{}; {length}]", self.format_expr(*repeated_element))
                 }
@@ -100,10 +102,7 @@ impl FmtVisitor<'_> {
                         exprs.into_iter().map(|expr| self.format_expr(expr)).collect();
                     format!("[{}]", contents.join(", "))
                 }
-
-                Literal::Bool(_) | Literal::Str(_) | Literal::FmtStr(_) | Literal::Unit => {
-                    literal.to_string()
-                }
+                Literal::Unit => "()".to_string(),
             },
             ExpressionKind::Parenthesized(mut sub_expr) => {
                 let remove_nested_parens = self.config.remove_nested_parens;

tooling/nargo_fmt/tests/expected/literals.nr

@@ -9,5 +9,13 @@ fn main() {
 
     "hello world";
 
+    "hell\0\"world";
+
+    f"i: {i}, j: {j}";
+
+    ();
+
+    (/*test*/);
+
     ()
 }

tooling/nargo_fmt/tests/input/literals.nr

@@ -11,5 +11,13 @@ fn main() {
 
     "hello world";
 
+    "hell\0\"world";
+
+    f"i: {i}, j: {j}";
+
+    (   );
+
+    (/*test*/);
+
     ()
 }