method

class_variable_get

v2_1_10 - Show latest stable - 0 notes - Class: Module

class_variable_get(p1) public

Returns the value of the given class variable (or throws a NameError exception). The @@ part of the variable name should be included for regular class variables. String arguments are converted to symbols.

class Fred
  @@foo = 99
end
Fred.class_variable_get(:@@foo)     #=> 99

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static VALUE
rb_mod_cvar_get(VALUE obj, VALUE iv)
{
    ID id = rb_check_id(&iv);

    if (!id) {
        if (rb_is_class_name(iv)) {
            rb_name_error_str(iv, "uninitialized class variable %"PRIsVALUE" in %"PRIsVALUE"",
                              iv, rb_class_name(obj));
        }
        else {
            rb_name_error_str(iv, "`%"PRIsVALUE"' is not allowed as a class variable name",
                              QUOTE(iv));
        }
    }
    if (!rb_is_class_id(id)) {
        rb_name_error(id, "`%"PRIsVALUE"' is not allowed as a class variable name",
                      QUOTE_ID(id));
    }
    return rb_cvar_get(obj, id);
}

class_variable_get

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