1 files changed, 35 insertions, 0 deletions
diff --git a/deps/v8/src/parsing/preparser-logger.h b/deps/v8/src/parsing/preparser-logger.h
new file mode 100644
index 0000000000..55394ca2be
--- /dev/null
+++ b/deps/v8/src/parsing/preparser-logger.h
@@ -0,0 +1,35 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_PARSING_PREPARSER_LOGGER_H_
+#define V8_PARSING_PREPARSER_LOGGER_H_
+
+namespace v8 {
+namespace internal {
+
+class PreParserLogger final {
+ public:
+  PreParserLogger() : end_(-1), num_parameters_(-1), num_inner_functions_(-1) {}
+
+  void LogFunction(int end, int num_parameters, int num_inner_functions) {
+    end_ = end;
+    num_parameters_ = num_parameters;
+    num_inner_functions_ = num_inner_functions;
+  }
+
+  int end() const { return end_; }
+  int num_parameters() const { return num_parameters_; }
+  int num_inner_functions() const { return num_inner_functions_; }
+
+ private:
+  int end_;
+  // For function entries.
+  int num_parameters_;
+  int num_inner_functions_;
+};
+
+}  // namespace internal
+}  // namespace v8.
+
+#endif  // V8_PARSING_PREPARSER_LOGGER_H_