1 files changed, 22 insertions, 5 deletions
diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix/format_like.rs b/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix/format_like.rs
index b43bdb9ab..dfcc78e92 100644
--- a/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix/format_like.rs
+++ b/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix/format_like.rs
@@ -54,7 +54,11 @@ pub(crate) fn add_format_like_completions(
     if let Ok((out, exprs)) = parse_format_exprs(receiver_text.text()) {
         let exprs = with_placeholders(exprs);
         for (label, macro_name) in KINDS {
-            let snippet = format!(r#"{}({}, {})"#, macro_name, out, exprs.join(", "));
+            let snippet = if exprs.is_empty() {
+                format!(r#"{}({})"#, macro_name, out)
+            } else {
+                format!(r#"{}({}, {})"#, macro_name, out, exprs.join(", "))
+            };
 
             postfix_snippet(label, macro_name, &snippet).add_to(acc);
         }
@@ -72,16 +76,29 @@ mod tests {
             ("eprintln!", "{}", r#"eprintln!("{}", $1)"#),
             (
                 "log::info!",
-                "{} {expr} {} {2 + 2}",
-                r#"log::info!("{} {} {} {}", $1, expr, $2, 2 + 2)"#,
+                "{} {ident} {} {2 + 2}",
+                r#"log::info!("{} {ident} {} {}", $1, $2, 2 + 2)"#,
             ),
-            ("format!", "{expr:?}", r#"format!("{:?}", expr)"#),
         ];
 
         for (kind, input, output) in test_vector {
             let (parsed_string, exprs) = parse_format_exprs(input).unwrap();
             let exprs = with_placeholders(exprs);
-            let snippet = format!(r#"{}("{}", {})"#, kind, parsed_string, exprs.join(", "));
+            let snippet = format!(r#"{kind}("{parsed_string}", {})"#, exprs.join(", "));
+            assert_eq!(&snippet, output);
+        }
+    }
+
+    #[test]
+    fn test_into_suggestion_no_epxrs() {
+        let test_vector = &[
+            ("println!", "{ident}", r#"println!("{ident}")"#),
+            ("format!", "{ident:?}", r#"format!("{ident:?}")"#),
+        ];
+
+        for (kind, input, output) in test_vector {
+            let (parsed_string, _exprs) = parse_format_exprs(input).unwrap();
+            let snippet = format!(r#"{}("{}")"#, kind, parsed_string);
             assert_eq!(&snippet, output);
         }
     }