singularRulesets[] = $this->getSingularRuleset(); $this->pluralRulesets[] = $this->getPluralRuleset(); } final public function build(): Inflector { return new Inflector( new CachedWordInflector(new RulesetInflector( ...$this->singularRulesets )), new CachedWordInflector(new RulesetInflector( ...$this->pluralRulesets )) ); } final public function withSingularRules(?Ruleset $singularRules, bool $reset = false): LanguageInflectorFactory { if ($reset) { $this->singularRulesets = []; } if ($singularRules instanceof Ruleset) { array_unshift($this->singularRulesets, $singularRules); } return $this; } final public function withPluralRules(?Ruleset $pluralRules, bool $reset = false): LanguageInflectorFactory { if ($reset) { $this->pluralRulesets = []; } if ($pluralRules instanceof Ruleset) { array_unshift($this->pluralRulesets, $pluralRules); } return $this; } abstract protected function getSingularRuleset(): Ruleset; abstract protected function getPluralRuleset(): Ruleset; }