1 files changed, 26 insertions, 0 deletions
diff --git a/src/gc.h b/src/gc.h
new file mode 100644
index 000000000..139580533
--- /dev/null
+++ b/src/gc.h
@@ -0,0 +1,26 @@
+#ifndef MRUBY_GC_H
+#define MRUBY_GC_H
+
+typedef struct {
+  union {
+    struct free_obj {
+      MRUBY_OBJECT_HEADER;
+      struct RBasic *next;
+    } free;
+    struct RBasic basic;
+    struct RObject object;
+    struct RClass klass;
+    struct RString string;
+    struct RArray array;
+    struct RHash hash;
+    struct RRange range;
+    struct RStruct structdata;
+    struct RProc procdata;
+#ifdef INCLUDE_REGEXP
+    struct RMatch match;
+    struct RRegexp regexp;
+#endif
+  } as;
+} RVALUE;
+
+#endif  /* MRUBY_GC_H */