to_s

static VALUE
method_inspect(VALUE method)
{
    struct METHOD *data;
    VALUE str;
    const char *s;
    const char *sharp = "#";

    Data_Get_Struct(method, struct METHOD, data);
    str = rb_str_buf_new2("#<");
    s = rb_obj_classname(method);
    rb_str_buf_cat2(str, s);
    rb_str_buf_cat2(str, ": ");

    if (FL_TEST(data->oclass, FL_SINGLETON)) {
        VALUE v = rb_iv_get(data->oclass, "__attached__");

        if (data->recv == Qundef) {
            rb_str_buf_append(str, rb_inspect(data->oclass));
        }
        else if (data->recv == v) {
            rb_str_buf_append(str, rb_inspect(v));
            sharp = ".";
        }
        else {
            rb_str_buf_append(str, rb_inspect(data->recv));
            rb_str_buf_cat2(str, "(");
            rb_str_buf_append(str, rb_inspect(v));
            rb_str_buf_cat2(str, ")");
            sharp = ".";
        }
    }
    else {
        rb_str_buf_cat2(str, rb_class2name(data->rclass));
        if (data->rclass != data->oclass) {
            rb_str_buf_cat2(str, "(");
            rb_str_buf_cat2(str, rb_class2name(data->oclass));
            rb_str_buf_cat2(str, ")");
        }
    }
    rb_str_buf_cat2(str, sharp);
    rb_str_append(str, rb_id2str(data->oid));
    rb_str_buf_cat2(str, ">");

    return str;
}