1 files changed, 23 insertions, 1 deletions
diff --git a/deps/v8/src/torque/server-data.cc b/deps/v8/src/torque/server-data.cc
index 2dc92a4960..2911a2b4cd 100644
--- a/deps/v8/src/torque/server-data.cc
+++ b/deps/v8/src/torque/server-data.cc
@@ -4,6 +4,9 @@
 
 #include "src/torque/server-data.h"
 
+#include "src/torque/declarable.h"
+#include "src/torque/implementation-visitor.h"
+
 namespace v8 {
 namespace internal {
 namespace torque {
@@ -17,7 +20,12 @@ void LanguageServerData::AddDefinition(SourcePosition token,
 
 base::Optional<SourcePosition> LanguageServerData::FindDefinition(
     SourceId source, LineAndColumn pos) {
-  for (const DefinitionMapping& mapping : Get().definitions_map_.at(source)) {
+  if (!source.IsValid()) return base::nullopt;
+
+  auto iter = Get().definitions_map_.find(source);
+  if (iter == Get().definitions_map_.end()) return base::nullopt;
+
+  for (const DefinitionMapping& mapping : iter->second) {
     SourcePosition current = mapping.first;
     if (current.Contains(pos)) return mapping.second;
   }
@@ -25,6 +33,20 @@ base::Optional<SourcePosition> LanguageServerData::FindDefinition(
   return base::nullopt;
 }
 
+void LanguageServerData::PrepareAllDeclarableSymbols() {
+  const std::vector<std::unique_ptr<Declarable>>& all_declarables =
+      global_context_->declarables_;
+
+  for (const auto& declarable : all_declarables) {
+    // Class field accessors and implicit specializations are
+    // auto-generated and should not show up.
+    if (!declarable->IsUserDefined()) continue;
+
+    SourceId source = declarable->Position().source;
+    symbols_map_[source].push_back(declarable.get());
+  }
+}
+
 }  // namespace torque
 }  // namespace internal
 }  // namespace v8