From 4d541f7cf3e3e3835f0556a93e6d300b8d2e32da Mon Sep 17 00:00:00 2001
From: David Barsky <me@davidbarsky.com>
Date: Wed, 23 Oct 2024 12:44:57 -0700
Subject: [PATCH] internal: log original syntax on panic

---
 src/tools/rust-analyzer/crates/span/src/ast_id.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tools/rust-analyzer/crates/span/src/ast_id.rs b/src/tools/rust-analyzer/crates/span/src/ast_id.rs
index 0ebd72e1514..1d81d684511 100644
--- a/src/tools/rust-analyzer/crates/span/src/ast_id.rs
+++ b/src/tools/rust-analyzer/crates/span/src/ast_id.rs
@@ -224,9 +224,10 @@ fn erased_ast_id(&self, item: &SyntaxNode) -> ErasedFileAstId {
         match self.map.raw_entry().from_hash(hash, |&idx| self.arena[idx] == ptr) {
             Some((&idx, &())) => ErasedFileAstId(idx.into_raw().into_u32()),
             None => panic!(
-                "Can't find {:?} in AstIdMap:\n{:?}",
+                "Can't find {:?} in AstIdMap:\n{:?}\n source text: {}",
                 item,
                 self.arena.iter().map(|(_id, i)| i).collect::<Vec<_>>(),
+                item
             ),
         }
     }