1 files changed, 96 insertions, 0 deletions
diff --git a/internal/box.h b/internal/box.h
new file mode 100644
index 0000000000..c717dc4e24
--- /dev/null
+++ b/internal/box.h
@@ -0,0 +1,96 @@
+#ifndef INTERNAL_BOX_H                                  /*-*-C-*-vi:se ft=c:*/
+#define INTERNAL_BOX_H
+
+#include "ruby/ruby.h"          /* for VALUE */
+
+/**
+ * @author     Ruby developers <ruby-core@ruby-lang.org>
+ * @copyright  This  file  is   a  part  of  the   programming  language  Ruby.
+ *             Permission  is hereby  granted,  to  either redistribute  and/or
+ *             modify this file, provided that  the conditions mentioned in the
+ *             file COPYING are met.  Consult the file for details.
+ * @brief      Internal header for Ruby Box.
+ */
+struct rb_box_struct {
+    /*
+     * To retrieve Ruby::Box object that provides #require and so on.
+     * That is used from load.c, etc., that uses rb_box_t internally.
+     */
+    VALUE box_object;
+    long box_id; // box_id to generate ext filenames
+
+    VALUE top_self;
+
+    VALUE load_path;
+    VALUE load_path_snapshot;
+    VALUE load_path_check_cache;
+    VALUE expanded_load_path;
+    VALUE loaded_features;
+    VALUE loaded_features_snapshot;
+    VALUE loaded_features_realpaths;
+    VALUE loaded_features_realpath_map;
+    struct st_table *loaded_features_index;
+    struct st_table *loading_table;
+    VALUE ruby_dln_libmap;
+
+    VALUE gvar_tbl;
+    struct st_table *classext_cow_classes;
+
+    bool is_root;
+    bool is_user;
+    bool is_optional;
+};
+typedef struct rb_box_struct rb_box_t;
+
+struct rb_box_gem_flags {
+    bool gem;
+    bool error_highlight;
+    bool did_you_mean;
+    bool syntax_suggest;
+};
+typedef struct rb_box_gem_flags rb_box_gem_flags_t;
+
+#define BOX_OBJ_P(obj) (rb_obj_class(obj) == rb_cBox)
+
+#define BOX_MASTER_P(box) (box && !box->is_root && !box->is_user)
+#define BOX_MUTABLE_P(box) (box && (box->is_root || box->is_user))
+#define BOX_ROOT_P(box) (box && box->is_root)
+#define BOX_USER_P(box) (box && box->is_user)
+#define BOX_OPTIONAL_P(box) (box && box->is_optional)
+#define BOX_MAIN_P(box) (box && box->is_user && !box->is_optional)
+
+#define BOX_METHOD_DEFINITION(mdef) (mdef ? mdef->ns : NULL)
+#define BOX_METHOD_ENTRY(me) (me ? BOX_METHOD_DEFINITION(me->def) : NULL)
+#define BOX_CC(cc) (cc ? BOX_METHOD_ENTRY(cc->cme_) : NULL)
+#define BOX_CC_ENTRIES(ccs) (ccs ? BOX_METHOD_ENTRY(ccs->cme) : NULL)
+
+RUBY_EXTERN bool ruby_box_enabled;
+RUBY_EXTERN bool ruby_box_init_done;
+RUBY_EXTERN bool ruby_box_crashed;
+
+static inline bool
+rb_box_available(void)
+{
+    return ruby_box_enabled;
+}
+
+const rb_box_t * rb_master_box(void);
+const rb_box_t * rb_root_box(void);
+const rb_box_t * rb_main_box(void);
+const rb_box_t * rb_current_box(void);
+const rb_box_t * rb_loading_box(void);
+const rb_box_t * rb_current_box_in_crash_report(void);
+
+void rb_box_entry_mark(void *);
+void rb_box_gc_update_references(void *ptr);
+
+rb_box_t * rb_get_box_t(VALUE ns);
+VALUE rb_get_box_object(rb_box_t *ns);
+
+VALUE rb_box_local_extension(VALUE box, VALUE fname, VALUE path, VALUE *cleanup);
+void rb_box_cleanup_local_extension(VALUE cleanup);
+
+void rb_initialize_mandatory_boxes(void);
+void rb_box_init_done(void);
+void rb_box_set_gem_flags(rb_box_gem_flags_t *);
+#endif /* INTERNAL_BOX_H */