1 files changed, 16 insertions, 6 deletions

diff --git a/crates/ra_ide_api/src/completion/complete_postfix.rs b/crates/ra_ide_api/src/completion/complete_postfix.rs
index b7dc50c34..d1f6b9433 100644
--- a/crates/ra_ide_api/src/completion/complete_postfix.rs
+++ b/crates/ra_ide_api/src/completion/complete_postfix.rs
@@ -15,7 +15,7 @@ use ra_syntax::{
 };
 use ra_text_edit::TextEditBuilder;
 
-fn postfix_snippet(ctx: &CompletionContext, label: &str, snippet: &str) -> Builder {
+fn postfix_snippet(ctx: &CompletionContext, label: &str, detail: &str, snippet: &str) -> Builder {
     let replace_range = ctx.source_range();
     let receiver_range = ctx.dot_receiver.expect("no receiver available").syntax().range();
     let delete_range = TextRange::from_to(receiver_range.start(), replace_range.start());
@@ -23,23 +23,33 @@ fn postfix_snippet(ctx: &CompletionContext, label: &str, snippet: &str) -> Build
     builder.delete(delete_range);
     CompletionItem::new(CompletionKind::Postfix, replace_range, label)
         .snippet(snippet)
+        .detail(detail)
         .text_edit(builder.finish())
 }
 
 pub(super) fn complete_postfix(acc: &mut Completions, ctx: &CompletionContext) {
     if let Some(dot_receiver) = ctx.dot_receiver {
         let receiver_text = dot_receiver.syntax().text().to_string();
-        postfix_snippet(ctx, "not", &format!("!{}", receiver_text)).add_to(acc);
-        postfix_snippet(ctx, "ref", &format!("&{}", receiver_text)).add_to(acc);
-        postfix_snippet(ctx, "if", &format!("if {} {{$0}}", receiver_text)).add_to(acc);
+        postfix_snippet(ctx, "not", "!expr", &format!("!{}", receiver_text)).add_to(acc);
+        postfix_snippet(ctx, "ref", "&expr", &format!("&{}", receiver_text)).add_to(acc);
+        postfix_snippet(ctx, "mref", "&mut expr", &format!("&mut {}", receiver_text)).add_to(acc);
+        postfix_snippet(ctx, "if", "if expr {}", &format!("if {} {{$0}}", receiver_text))
+            .add_to(acc);
         postfix_snippet(
             ctx,
             "match",
+            "match expr {}",
             &format!("match {} {{\n${{1:_}} => {{$0\\}},\n}}", receiver_text),
         )
         .add_to(acc);
-        postfix_snippet(ctx, "while", &format!("while {} {{\n$0\n}}", receiver_text)).add_to(acc);
-        postfix_snippet(ctx, "dbg", &format!("dbg!({})", receiver_text)).add_to(acc);
+        postfix_snippet(
+            ctx,
+            "while",
+            "while expr {}",
+            &format!("while {} {{\n$0\n}}", receiver_text),
+        )
+        .add_to(acc);
+        postfix_snippet(ctx, "dbg", "dbg!(expr)", &format!("dbg!({})", receiver_text)).add_to(acc);
     }
 }