From 5b696bac5cbd6cc9108ec83c67bc84c3d5329590 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Mon, 13 May 2024 12:56:02 +0200
Subject: [PATCH] Don't render multi-line literal values

---
 crates/ide/src/hover/render.rs |  8 +++++++-
 crates/ide/src/hover/tests.rs  | 22 ++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/crates/ide/src/hover/render.rs b/crates/ide/src/hover/render.rs
index e392a8ec38..a166bab37c 100644
--- a/crates/ide/src/hover/render.rs
+++ b/crates/ide/src/hover/render.rs
@@ -564,7 +564,13 @@ pub(super) fn literal(sema: &Semantics<'_, RootDatabase>, token: SyntaxToken) ->
 
     let mut s = format!("```rust\n{ty}\n```\n___\n\n");
     match value {
-        Ok(value) => format_to!(s, "value of literal: {value}"),
+        Ok(value) => {
+            if let Some(newline) = value.find('\n') {
+                format_to!(s, "value of literal (truncated up to newline): {}", &value[..newline])
+            } else {
+                format_to!(s, "value of literal: {value}")
+            }
+        }
         Err(error) => format_to!(s, "invalid literal: {error}"),
     }
     Some(s.into())
diff --git a/crates/ide/src/hover/tests.rs b/crates/ide/src/hover/tests.rs
index b5547c0514..76d86f8ede 100644
--- a/crates/ide/src/hover/tests.rs
+++ b/crates/ide/src/hover/tests.rs
@@ -7814,6 +7814,28 @@ fn main() {
             value of literal: 🦀\u{1f980}\\\x41
         "#]],
     );
+    check(
+        r#"
+fn main() {
+    $0r"🦀\u{1f980}\\\x41
+
+
+fsdghs";
+}
+"#,
+        expect![[r#"
+            *r"🦀\u{1f980}\\\x41
+
+
+            fsdghs"*
+            ```rust
+            &str
+            ```
+            ___
+
+            value of literal (truncated up to newline): 🦀\u{1f980}\\\x41
+        "#]],
+    );
 }
 
 #[test]