From cc1b2b9684701b9ffd039c50284f0e2009d55b21 Mon Sep 17 00:00:00 2001
From: Nikolay Igotti <nikolay.igotti@jetbrains.com>
Date: Wed, 16 Nov 2016 18:41:36 +0300
Subject: [PATCH] Add CheckCast().

---
 runtime/src/main/cpp/Memory.cpp | 8 ++++++++
 runtime/src/main/cpp/Memory.h   | 1 +
 2 files changed, 9 insertions(+)

diff --git a/runtime/src/main/cpp/Memory.cpp b/runtime/src/main/cpp/Memory.cpp
index 3f1475a5aaf..7f7517dbe79 100644
--- a/runtime/src/main/cpp/Memory.cpp
+++ b/runtime/src/main/cpp/Memory.cpp
@@ -1,6 +1,7 @@
 #include <stdlib.h>
 
 #include "Assert.h"
+#include "Exceptions.h"
 #include "Memory.h"
 
 void FreeObject(ContainerHeader* header) {
@@ -105,6 +106,13 @@ int IsInstance(const ObjHeader* obj, const TypeInfo* type_info) {
   return obj_type_info != nullptr;
 }
 
+void CheckInstance(const ObjHeader* obj, const TypeInfo* type_info) {
+  if (IsInstance(obj, type_info)) {
+    return;
+  }
+  ThrowClassCastException();
+}
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/runtime/src/main/cpp/Memory.h b/runtime/src/main/cpp/Memory.h
index fce850e9499..3542f29a057 100644
--- a/runtime/src/main/cpp/Memory.h
+++ b/runtime/src/main/cpp/Memory.h
@@ -267,6 +267,7 @@ void* AllocInstance(const TypeInfo* type_info, PlacementHint hint);
 void* AllocArrayInstance(
     const TypeInfo* type_info, PlacementHint hint, uint32_t elements);
 int IsInstance(const ObjHeader* obj, const TypeInfo* type_info);
+void CheckCast(const ObjHeader* obj, const TypeInfo* type_info);
 
 #ifdef __cplusplus
 }