/**
* @param Sum $sum
*
* @return int|float
*/
public function visitSum(Sum $sum)
{
return $sum->firstOperand()->accept($this) + $sum->secondOperand()->accept($this);
}
<?php require 'vendor/autoload.php'; use Cubiche\Core\Visitor\Tests\Fixtures\Calculator; use Cubiche\Core\Visitor\Tests\Fixtures\Mult; use Cubiche\Core\Visitor\Tests\Fixtures\Sum; use Cubiche\Core\Visitor\Tests\Fixtures\Value; $expression = new Sum(new Value(5), new Mult(new Value(3), new Value(2))); $calculator = new Calculator(); $result = $expression->accept($calculator); echo 'The result is ' . $result . PHP_EOL;
<?php require 'vendor/autoload.php'; use Cubiche\Core\Visitor\Tests\Fixtures\Calculator; use Cubiche\Core\Visitor\Tests\Fixtures\Mult; use Cubiche\Core\Visitor\Tests\Fixtures\SmartExpressionToStringConverter; use Cubiche\Core\Visitor\Tests\Fixtures\Sum; use Cubiche\Core\Visitor\Tests\Fixtures\Value; $expression1 = new Sum(new Value(5), new Mult(new Value(3), new Value(2))); $expression2 = new Mult(new Value(4), $expression1); $calculator = new Calculator(); $converter = new SmartExpressionToStringConverter(); echo $expression1->accept($converter) . ' = ' . $expression1->accept($calculator) . PHP_EOL; echo $expression2->accept($converter) . ' = ' . $expression2->accept($calculator) . PHP_EOL;
<?php require 'vendor/autoload.php'; use Cubiche\Core\Visitor\Tests\Fixtures\Calculator; use Cubiche\Core\Visitor\Tests\Fixtures\Mult; use Cubiche\Core\Visitor\Tests\Fixtures\Sum; use Cubiche\Core\Visitor\Tests\Fixtures\Value; use Cubiche\Core\Visitor\Tests\Fixtures\ExpressionToStringConverter; $expression = new Sum(new Value(5), new Mult(new Value(3), new Value(2))); $calculator = new Calculator(); $result = $expression->accept($calculator); $converter = new ExpressionToStringConverter(); echo $expression->accept($converter) . ' = ' . $result . PHP_EOL;