From ae8b69f33adb4b8c2950145e0de86d372c923289 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukas@zed.dev>
Date: Wed, 6 Aug 2025 17:30:18 +0200
Subject: [PATCH] Report the incorrect payload when failing to deserialize lsp
 messages

---
 crates/ide/src/inlay_hints.rs            | 4 ++--
 crates/ide/src/inlay_hints/param_name.rs | 6 +++++-
 lib/lsp-server/src/msg.rs                | 2 +-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/crates/ide/src/inlay_hints.rs b/crates/ide/src/inlay_hints.rs
index 7a8514c47a..8c2a2f6f72 100644
--- a/crates/ide/src/inlay_hints.rs
+++ b/crates/ide/src/inlay_hints.rs
@@ -228,9 +228,9 @@ fn hints(
                 chaining::hints(hints, famous_defs, config, display_target, &expr);
                 adjustment::hints(hints, famous_defs, config, display_target, &expr);
                 match expr {
-                    ast::Expr::CallExpr(it) => param_name::hints(hints, famous_defs, config, ast::Expr::from(it)),
+                    ast::Expr::CallExpr(it) => param_name::hints(hints, famous_defs, config, file_id, ast::Expr::from(it)),
                     ast::Expr::MethodCallExpr(it) => {
-                        param_name::hints(hints, famous_defs, config, ast::Expr::from(it))
+                        param_name::hints(hints, famous_defs, config, file_id, ast::Expr::from(it))
                     }
                     ast::Expr::ClosureExpr(it) => {
                         closure_captures::hints(hints, famous_defs, config, it.clone());
diff --git a/crates/ide/src/inlay_hints/param_name.rs b/crates/ide/src/inlay_hints/param_name.rs
index ec0a4c46c7..7547077840 100644
--- a/crates/ide/src/inlay_hints/param_name.rs
+++ b/crates/ide/src/inlay_hints/param_name.rs
@@ -7,7 +7,7 @@
 use std::iter::zip;
 
 use either::Either;
-use hir::Semantics;
+use hir::{EditionedFileId, Semantics};
 use ide_db::{RootDatabase, famous_defs::FamousDefs};
 
 use stdx::to_lower_snake_case;
@@ -19,6 +19,7 @@ pub(super) fn hints(
     acc: &mut Vec<InlayHint>,
     FamousDefs(sema, krate): &FamousDefs<'_, '_>,
     config: &InlayHintsConfig,
+    file_id: EditionedFileId,
     expr: ast::Expr,
 ) -> Option<()> {
     if !config.parameter_hints {
@@ -39,6 +40,9 @@ pub(super) fn hints(
         .filter_map(|(p, arg)| {
             // Only annotate hints for expressions that exist in the original file
             let range = sema.original_range_opt(arg.syntax())?;
+            if range.file_id != file_id {
+                return None;
+            }
             let param_name = p.name(sema.db)?;
             Some((p, param_name, arg, range))
         })
diff --git a/lib/lsp-server/src/msg.rs b/lib/lsp-server/src/msg.rs
index 399d674e41..b20337fdbf 100644
--- a/lib/lsp-server/src/msg.rs
+++ b/lib/lsp-server/src/msg.rs
@@ -175,7 +175,7 @@ impl Message {
         let msg = match serde_json::from_str(&text) {
             Ok(msg) => msg,
             Err(e) => {
-                return Err(invalid_data!("malformed LSP payload: {:?}", e));
+                return Err(invalid_data!("malformed LSP payload `{e:?}`: {text:?}"));
             }
         };