Module#autoload

mod.autoload(const, filename) → nil

static VALUE
rb_mod_autoload(VALUE mod, VALUE sym, VALUE file)
{
    ID id = rb_to_id(sym);

    FilePathValue(file);
    rb_autoload_str(mod, id, file);
    return Qnil;
}

Registers _filename_ to be loaded (using Kernel::require)
the first time that _const_ (which may be a String or
a symbol) is accessed in the namespace of _mod_.

   module A
   end
   A.autoload(:B, "b")
   A::B.doit            # autoloads "b"

If const in mod is defined as autoload, the file name to be loaded is replaced with filename. If const is defined but not as autoload, does nothing.

See also #autoload? #attr_writer #attr_reader #class_eval also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0

‹ prev#attr_writer next ›#autoload?