public function visitTernary(O\TernaryExpression $expression)
{
$this->walk($expression->getCondition());
$this->walk($expression->getIfTrue());
$this->walk($expression->getIfFalse());
$this->analysis[$expression] = $this->typeSystem->getCommonAncestorType($this->analysis[$expression->hasIfTrue() ? $expression->getIfTrue() : $expression->getCondition()], $this->analysis[$expression->getIfFalse()]);
}