1 files changed, 20 insertions, 0 deletions
diff --git a/ext/objspace/objspace.h b/ext/objspace/objspace.h
new file mode 100644
index 0000000000..95b84d6c1e
--- /dev/null
+++ b/ext/objspace/objspace.h
@@ -0,0 +1,20 @@
+#ifndef OBJSPACE_H
+#define OBJSPACE_H 1
+
+/* object_tracing.c */
+struct allocation_info {
+    /* all of information don't need marking. */
+    int living;
+    VALUE flags;
+    VALUE klass;
+
+    /* allocation info */
+    const char *path;
+    unsigned long line;
+    const char *class_path;
+    VALUE mid;
+    size_t generation;
+};
+struct allocation_info *objspace_lookup_allocation_info(VALUE obj);
+
+#endif