Zend\Code\Generator\TraitUsageGenerator::addTrait PHP Method

    public function addTrait($trait)
    {
        $traitName = $trait;
        if (is_array($trait)) {
            if (!array_key_exists('traitName', $trait)) {
                throw new Exception\InvalidArgumentException('Missing required value for traitName');
            }
            $traitName = $trait['traitName'];
            if (array_key_exists('aliases', $trait)) {
                foreach ($trait['aliases'] as $alias) {
                    $this->addAlias($alias);
                }
            }
            if (array_key_exists('insteadof', $trait)) {
                foreach ($trait['insteadof'] as $insteadof) {
                    $this->addTraitOverride($insteadof);
                }
            }
        }
        if (!$this->hasTrait($traitName)) {
            $this->traits[] = $traitName;
        }
        return $this;
    }