diff --git a/runtime/ecma_language_context.h b/runtime/ecma_language_context.h
index 9259b5575b6b48fabd6ca7ab0d339a831191a857..973bf4aa44c3b1736168482d3a8dd33bc605dfde 100644
--- a/runtime/ecma_language_context.h
+++ b/runtime/ecma_language_context.h
@@ -16,6 +16,7 @@
 #ifndef ECMASCRIPT_LANGUAGE_CONTEXT_H
 #define ECMASCRIPT_LANGUAGE_CONTEXT_H
 
+#include "include/language_config.h"
 #include "plugins/ecmascript/runtime/common.h"
 #include "include/language_context.h"
 #include "plugins/ecmascript/runtime/js_hclass.h"
@@ -35,6 +36,11 @@ public:
         return panda_file::SourceLang::ECMASCRIPT;
     }
 
+    LangTypeT GetLanguageType() const override
+    {
+        return EcmascriptLanguageConfig::LANG_TYPE;
+    }
+
     std::pair<Method *, uint32_t> GetCatchMethodAndOffset(Method *method, ManagedThread *thread) const override;
 
     PandaVM *CreateVM(Runtime *runtime, const RuntimeOptions &options) const override;
diff --git a/runtime/ecma_vm.cpp b/runtime/ecma_vm.cpp
index f656e28f20899775b3beaffe26bc7704b4ffc939..cf6fdf2eb906857b76bd0adaba36e64cc8c38f09 100644
--- a/runtime/ecma_vm.cpp
+++ b/runtime/ecma_vm.cpp
@@ -14,6 +14,7 @@
  */
 
 #include "plugins/ecmascript/runtime/ecma_vm.h"
+#include "include/mem/panda_containers.h"
 #include "include/mem/panda_string.h"
 #include "plugins/ecmascript/runtime/bridge.h"
 
@@ -469,6 +470,20 @@ void EcmaVM::DumpHeap(PandaOStringStream *o_str) const
     *o_str << "\nTotal dumped " << obj_cnt << std::endl;
 }
 
+PandaString EcmaVM::GetClassesFootprint() const
+{
+    PandaUnorderedMap<JSType, size_t> classes_footprint;
+    PandaStringStream result;
+    GetHeapManager()->GetObjectAllocator()->IterateOverObjects([&classes_footprint](ObjectHeader *mem) {
+        auto obj_type = JSTaggedValue(mem).GetTaggedObject()->GetClass()->GetObjectType();
+        classes_footprint[obj_type] += mem->ObjectSize();
+    });
+    for (const auto &it : classes_footprint) {
+        result << "class: " << JSHClass::DumpJSType(it.first) << ", footprint - " << it.second << std::endl;
+    }
+    return result.str();
+}
+
 tooling::ecmascript::PtJSExtractor *EcmaVM::GetDebugInfoExtractor(const panda_file::File *file)
 {
     tooling::ecmascript::PtJSExtractor *res = nullptr;
diff --git a/runtime/ecma_vm.h b/runtime/ecma_vm.h
index a68988824bf89515e2d22c041e422535d07a5f18..474f2639cee8b1421fce1ba853c4133537dbd452 100644
--- a/runtime/ecma_vm.h
+++ b/runtime/ecma_vm.h
@@ -19,6 +19,7 @@
 #include <tuple>
 
 #include "include/mem/panda_containers.h"
+#include "include/mem/panda_string.h"
 #include "plugins/ecmascript/runtime/base/config.h"
 #include "plugins/ecmascript/runtime/ecma_call_profiling_table.h"
 #include "plugins/ecmascript/runtime/ecma_string_table.h"
@@ -453,6 +454,8 @@ public:
 
     void DumpHeap(PandaOStringStream *o_str) const final;
 
+    PandaString GetClassesFootprint() const final;
+
     static constexpr size_t GetGlobalEnvOffset()
     {
         return MEMBER_OFFSET(EcmaVM, global_env_);