split internal.h into files

One day, I could not resist the way it was written.  I finally started
to make the code clean.  This changeset is the beginning of a series of
housekeeping commits.  It is a simple refactoring; split internal.h into
files, so that we can divide and concur in the upcoming commits.  No
lines of codes are either added or removed, except the obvious file
headers/footers.  The generated binary is identical to the one before.

1 files changed, 59 insertions, 0 deletions

diff --git a/internal/variable.h b/internal/variable.h
new file mode 100644
index 0000000000..1de31f6b92
--- /dev/null
+++ b/internal/variable.h
@@ -0,0 +1,59 @@
+#ifndef INTERNAL_VARIABLE_H /* -*- C -*- */
+#define INTERNAL_VARIABLE_H
+/**
+ * @file
+ * @brief      Internal header for variables.
+ * @author     \@shyouhei
+ * @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.
+ */
+
+/* global variable */
+
+struct rb_global_entry {
+    struct rb_global_variable *var;
+    ID id;
+};
+
+struct rb_global_entry *rb_global_entry(ID);
+VALUE rb_gvar_get(struct rb_global_entry *);
+VALUE rb_gvar_set(struct rb_global_entry *, VALUE);
+VALUE rb_gvar_defined(struct rb_global_entry *);
+
+/* variable.c */
+#if USE_TRANSIENT_HEAP
+#define ROBJECT_TRANSIENT_FLAG    FL_USER13
+#define ROBJ_TRANSIENT_P(obj)     FL_TEST_RAW((obj), ROBJECT_TRANSIENT_FLAG)
+#define ROBJ_TRANSIENT_SET(obj)   FL_SET_RAW((obj), ROBJECT_TRANSIENT_FLAG)
+#define ROBJ_TRANSIENT_UNSET(obj) FL_UNSET_RAW((obj), ROBJECT_TRANSIENT_FLAG)
+#else
+#define ROBJ_TRANSIENT_P(obj)     0
+#define ROBJ_TRANSIENT_SET(obj)   ((void)0)
+#define ROBJ_TRANSIENT_UNSET(obj) ((void)0)
+#endif
+void rb_gc_mark_global_tbl(void);
+size_t rb_generic_ivar_memsize(VALUE);
+VALUE rb_search_class_path(VALUE);
+VALUE rb_attr_delete(VALUE, ID);
+VALUE rb_ivar_lookup(VALUE obj, ID id, VALUE undef);
+void rb_autoload_str(VALUE mod, ID id, VALUE file);
+VALUE rb_autoload_at_p(VALUE, ID, int);
+void rb_deprecate_constant(VALUE mod, const char *name);
+NORETURN(VALUE rb_mod_const_missing(VALUE,VALUE));
+rb_gvar_getter_t *rb_gvar_getter_function_of(const struct rb_global_entry *);
+rb_gvar_setter_t *rb_gvar_setter_function_of(const struct rb_global_entry *);
+bool rb_gvar_is_traced(const struct rb_global_entry *);
+void rb_gvar_readonly_setter(VALUE v, ID id, VALUE *_);
+
+RUBY_SYMBOL_EXPORT_BEGIN
+/* variable.c (export) */
+void rb_mark_generic_ivar(VALUE);
+void rb_mv_generic_ivar(VALUE src, VALUE dst);
+VALUE rb_const_missing(VALUE klass, VALUE name);
+int rb_class_ivar_set(VALUE klass, ID vid, VALUE value);
+void rb_iv_tbl_copy(VALUE dst, VALUE src);
+RUBY_SYMBOL_EXPORT_END
+
+#endif /* INTERNAL_VARIABLE_H */