def default_opinions(codel_size=1, noncoding='block', sliding='halting', color_dir_h='-', color_dir_l='-'):
    """Constructs an opinions dictionary for a repiet compiler pass
    (implicity filling in defaults)"""
    return dict(codel_size=codel_size,
                noncoding=noncoding,
                sliding=sliding,
                color_dir_h=color_dir_h,
                color_dir_l=color_dir_l)