src: enter and lock isolate properly in json parser

PR-URL: #57823
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>

Author: joyeecheung

src/json_parser.cc

@@ -18,6 +18,7 @@ bool JSONParser::Parse(const std::string& content) {
   DCHECK(!parsed_);
 
   Isolate* isolate = isolate_.get();
+  v8::Locker locker(isolate);
   v8::Isolate::Scope isolate_scope(isolate);
   v8::HandleScope handle_scope(isolate);
 
@@ -47,6 +48,7 @@ bool JSONParser::Parse(const std::string& content) {
 std::optional<std::string> JSONParser::GetTopLevelStringField(
     std::string_view field) {
   Isolate* isolate = isolate_.get();
+  v8::Locker locker(isolate);
   v8::Isolate::Scope isolate_scope(isolate);
   v8::HandleScope handle_scope(isolate);
 
@@ -73,6 +75,7 @@ std::optional<std::string> JSONParser::GetTopLevelStringField(
 
 std::optional<bool> JSONParser::GetTopLevelBoolField(std::string_view field) {
   Isolate* isolate = isolate_.get();
+  v8::Locker locker(isolate);
   v8::Isolate::Scope isolate_scope(isolate);
   v8::HandleScope handle_scope(isolate);
 
@@ -105,6 +108,8 @@ std::optional<bool> JSONParser::GetTopLevelBoolField(std::string_view field) {
 std::optional<JSONParser::StringDict> JSONParser::GetTopLevelStringDict(
     std::string_view field) {
   Isolate* isolate = isolate_.get();
+  v8::Locker locker(isolate);
+  v8::Isolate::Scope isolate_scope(isolate);
   v8::HandleScope handle_scope(isolate);
   Local<Context> context = context_.Get(isolate);
   Local<Object> content_object = content_.Get(isolate);