Defines a named attribute for this module, where the name is symbol.id2name, creating an
instance variable (@name) and a
corresponding access method to read it. If the optional writable
argument is true, also creates a method called name= to set the attribute.
/*
* call-seq:
* attr(symbol, writable=false) => nil
*
* Defines a named attribute for this module, where the name is
* <i>symbol.</i><code>id2name</code>, creating an instance variable
* (<code>@name</code>) and a corresponding access method to read it.
* If the optional <i>writable</i> argument is <code>true</code>, also
* creates a method called <code>name=</code> to set the attribute.
*
* module Mod
* attr :size, true
* end
*
* <em>is equivalent to:</em>
*
* module Mod
* def size
* @size
* end
* def size=(val)
* @size = val
* end
* end
*/
static VALUE
rb_mod_attr(argc, argv, klass)
int argc;
VALUE *argv;
VALUE klass;
{
VALUE name, pub;
rb_scan_args(argc, argv, "11", &name, &pub);
rb_attr(klass, rb_to_id(name), 1, RTEST(pub), Qtrue);
return Qnil;
}