First implementation of ObjectSpace moved outside of gc.c

include/mruby/gc.h

@@ -0,0 +1,53 @@
+/*
+** gc.c - garbage collector for mruby
+**
+** See Copyright Notice in mruby.h
+*/
+
+#ifndef MRUBY_GC_H
+#define MRUBY_GC_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include "mruby.h"
+#include "mruby/array.h"
+#include "mruby/class.h"
+#include "mruby/data.h"
+#include "mruby/hash.h"
+#include "mruby/proc.h"
+#include "mruby/range.h"
+#include "mruby/string.h"
+#include "mruby/variable.h"
+
+struct free_obj {
+  MRB_OBJECT_HEADER;
+  struct RBasic *next;
+};
+
+struct RVALUE {
+  union {
+    struct free_obj free;
+    struct RBasic basic;
+    struct RObject object;
+    struct RClass klass;
+    struct RString string;
+    struct RArray array;
+    struct RHash hash;
+    struct RRange range;
+    struct RData data;
+    struct RProc proc;
+  } as;
+};
+
+typedef struct RVALUE RVALUE;
+
+typedef int each_object_callback(RVALUE *obj, void *data);
+void mrb_objspace_each_objects(mrb_state *mrb, each_object_callback* callback, void *data);
+
+#if defined(__cplusplus)
+}  /* extern "C" { */
+#endif
+
+#endif  /* MRUBY_GC_H */