Throws.php

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<?php
namespace Magento\TestFramework\Integrity\Library\PhpParser;

class Throws implements ParserInterface, DependenciesCollectorInterface
{
    protected $tokens;

    protected $dependencies = [];

    protected $throws = [];

    public function __construct(Tokens $tokens)
    {
        $this->tokens = $tokens;
    }

    public function parse($token, $key)
    {
        if (is_array($token) && $token[0] == T_THROW) {
            $this->throws[] = $key;
        }
    }

    public function getDependencies(Uses $uses)
    {
        foreach ($this->throws as $throw) {
            $class = '';
            if ($this->tokens->getTokenCodeByKey($throw + 2) == T_NEW) {
                $step = 4;
                while ($this->tokens->getTokenCodeByKey(
                    $throw + $step
                ) == T_STRING || $this->tokens->getTokenCodeByKey(
                    $throw + $step
                ) == T_NS_SEPARATOR) {
                    $class .= trim($this->tokens->getTokenValueByKey($throw + $step));
                    $step++;
                }
                if ($uses->hasUses()) {
                    $class = $uses->getClassNameWithNamespace($class);
                }
                $this->dependencies[] = $class;
            }
        }

        return $this->dependencies;
    }
}