Method: Module#class_variables

Defined in:
variable.c

#class_variables(inherit = true) ⇒ Array

Returns an array of the names of class variables in mod. This includes the names of class variables in any included modules, unless the inherit parameter is set to false.

class One
  @@var1 = 1
end
class Two < One
  @@var2 = 2
end
One.class_variables          #=> [:@@var1]
Two.class_variables          #=> [:@@var2, :@@var1]
Two.class_variables(false)   #=> [:@@var2]

Returns:



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# File 'variable.c', line 2536

VALUE
rb_mod_class_variables(int argc, const VALUE *argv, VALUE mod)
{
    VALUE inherit;
    st_table *tbl;

    if (argc == 0) {
	inherit = Qtrue;
    }
    else {
	rb_scan_args(argc, argv, "01", &inherit);
    }
    if (RTEST(inherit)) {
	tbl = mod_cvar_of(mod, 0);
    }
    else {
	tbl = mod_cvar_at(mod, 0);
    }
    return cvar_list(tbl);
}