Function NewIncreaseLevelCore

zapcore/increase_level.go:39–47

NewIncreaseLevelCore creates a core that can be used to increase the level of an existing Core. It cannot be used to decrease the logging level, as it acts as a filter before calling the underlying core. If level decreases the log level, an error is returned.

(core Core, level LevelEnabler)

// as a filter before calling the underlying core. If level decreases the log level,
// an error is returned.
func NewIncreaseLevelCore(core Core, level LevelEnabler) (Core, error) {
	for l := _maxLevel; l >= _minLevel; l-- {
		if !core.Enabled(l) && level.Enabled(l) {
			return nil, fmt.Errorf("invalid increase level, as level %q is allowed by increased level, but not by existing core", l)
		}
	}

	return &levelFilterCore{core, level}, nil
}

func (c *levelFilterCore) Enabled(lvl Level) bool {
	return c.level.Enabled(lvl)