1 files changed, 10 insertions, 0 deletions
diff --git a/src/env.h b/src/env.h
index 20b2ca3841..26d448c450 100644
--- a/src/env.h
+++ b/src/env.h
@@ -450,6 +450,12 @@ struct ContextInfo {
   bool is_default = false;
 };
 
+struct CompileFnEntry {
+  Environment* env;
+  uint32_t id;
+  CompileFnEntry(Environment* env, uint32_t id);
+};
+
 // Listing the AsyncWrap provider types first enables us to cast directly
 // from a provider type to a debug category.
 #define DEBUG_CATEGORY_NAMES(V)                                                \
@@ -720,9 +726,12 @@ class Environment {
   std::unordered_map<uint32_t, loader::ModuleWrap*> id_to_module_map;
   std::unordered_map<uint32_t, contextify::ContextifyScript*>
       id_to_script_map;
+  std::unordered_set<CompileFnEntry*> compile_fn_entries;
+  std::unordered_map<uint32_t, Persistent<v8::Function>> id_to_function_map;
 
   inline uint32_t get_next_module_id();
   inline uint32_t get_next_script_id();
+  inline uint32_t get_next_function_id();
 
   std::unordered_map<std::string, const loader::PackageConfig>
       package_json_cache;
@@ -1006,6 +1015,7 @@ class Environment {
 
   uint32_t module_id_counter_ = 0;
   uint32_t script_id_counter_ = 0;
+  uint32_t function_id_counter_ = 0;
 
   AliasedBuffer<uint32_t, v8::Uint32Array> should_abort_on_uncaught_toggle_;
   int should_not_abort_scope_counter_ = 0;