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<?php |
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namespace Groundskeeper\Tokens; |
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use Groundskeeper\Configuration; |
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use Groundskeeper\Tokens\Token as CleanableToken; |
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use Kevintweber\HtmlTokenizer\HtmlTokenizer; |
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use Kevintweber\HtmlTokenizer\Tokens\Element as BasicElement; |
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use Kevintweber\HtmlTokenizer\Tokens\Token as BasicToken; |
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class Tokenizer |
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{ |
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/** @var Configuration */ |
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private $configuration; |
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/** |
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* Constructor |
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*/ |
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public function __construct(Configuration $configuration) |
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{ |
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$this->configuration = $configuration; |
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} |
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public function tokenize($html) |
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{ |
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$tokenizer = new HtmlTokenizer(false); |
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$basicTokenCollection = $tokenizer->parse((string) $html); |
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$tokenContainer = new TokenContainer($this->configuration); |
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foreach ($basicTokenCollection as $basicToken) { |
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$tokenContainer->appendChild($this->createToken($basicToken)); |
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} |
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return $tokenContainer; |
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} |
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private function createToken(BasicToken $basicToken) |
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{ |
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switch ($basicToken->getType()) { |
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case 'cdata': |
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return new CData( |
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$this->configuration, |
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$basicToken->getValue() |
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); |
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case 'comment': |
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return new Comment( |
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$this->configuration, |
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$basicToken->getValue() |
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); |
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case 'doctype': |
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return new DocType( |
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$this->configuration, |
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$basicToken->getValue() |
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); |
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case 'element': |
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return $this->createElement($basicToken); |
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case 'php': |
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return new Php( |
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$this->configuration, |
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$basicToken->getValue() |
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); |
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case 'text': |
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return new Text( |
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$this->configuration, |
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$basicToken->getValue() |
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); |
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} |
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throw new \RuntimeException( |
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'Invalid token type: ' . $basicToken->getType() |
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); |
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} |
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private function createElement(BasicElement $basicElement) |
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{ |
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// Primary class name. |
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$elementClassName = 'Groundskeeper\\Tokens\\Elements\\' . |
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ucfirst(strtolower($basicElement->getName())); |
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if (!class_exists($elementClassName)) { |
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// Secondary class name. |
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// For elements whose names conflict with PHP keywords: var |
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$elementClassName = 'Groundskeeper\\Tokens\\Elements\\' . |
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ucfirst(strtolower($basicElement->getName())) . 'Element'; |
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if (!class_exists($elementClassName)) { |
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$elementClassName = 'Groundskeeper\\Tokens\\Element'; |
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} |
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} |
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$cleanableElement = new $elementClassName( |
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$this->configuration, |
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$basicElement->getName(), |
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$basicElement->getAttributes() |
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); |
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foreach ($basicElement->getChildren() as $basicChild) { |
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$cleanableElement->appendChild( |
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$this->createToken($basicChild) |
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); |
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} |
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return $cleanableElement; |
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} |
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} |
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: