migration symfony 5 4 (#300)

* symfony 5.4 (diff dev)

* symfony 5.4 (working)

* symfony 5.4 (update autoload)

* symfony 5.4 (remove swiftmailer mailer implementation)

* symfony 5.4 (php doc and split Global accessor class)


### Impacted packages:

composer require php:">=7.2.5 <8.0.0" symfony/console:5.4.* symfony/dotenv:5.4.* symfony/framework-bundle:5.4.* symfony/twig-bundle:5.4.* symfony/yaml:5.4.* --update-with-dependencies

composer require symfony/stopwatch:5.4.* symfony/web-profiler-bundle:5.4.* --dev --update-with-dependencies

lib/symfony/css-selector/XPath/Extension/AbstractExtension.php

@@ -26,7 +26,7 @@ abstract class AbstractExtension implements ExtensionInterface
     /**
      * {@inheritdoc}
      */
-    public function getNodeTranslators()
+    public function getNodeTranslators(): array
     {
         return [];
     }
@@ -34,7 +34,7 @@ abstract class AbstractExtension implements ExtensionInterface
     /**
      * {@inheritdoc}
      */
-    public function getCombinationTranslators()
+    public function getCombinationTranslators(): array
     {
         return [];
     }
@@ -42,7 +42,7 @@ abstract class AbstractExtension implements ExtensionInterface
     /**
      * {@inheritdoc}
      */
-    public function getFunctionTranslators()
+    public function getFunctionTranslators(): array
     {
         return [];
     }
@@ -50,7 +50,7 @@ abstract class AbstractExtension implements ExtensionInterface
     /**
      * {@inheritdoc}
      */
-    public function getPseudoClassTranslators()
+    public function getPseudoClassTranslators(): array
     {
         return [];
     }
@@ -58,7 +58,7 @@ abstract class AbstractExtension implements ExtensionInterface
     /**
      * {@inheritdoc}
      */
-    public function getAttributeMatchingTranslators()
+    public function getAttributeMatchingTranslators(): array
     {
         return [];
     }

lib/symfony/css-selector/XPath/Extension/AttributeMatchingExtension.php

@@ -29,7 +29,7 @@ class AttributeMatchingExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getAttributeMatchingTranslators()
+    public function getAttributeMatchingTranslators(): array
     {
         return [
             'exists' => [$this, 'translateExists'],
@@ -43,35 +43,17 @@ class AttributeMatchingExtension extends AbstractExtension
         ];
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateExists(XPathExpr $xpath, $attribute, $value)
+    public function translateExists(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition($attribute);
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateEquals(XPathExpr $xpath, $attribute, $value)
+    public function translateEquals(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value)));
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateIncludes(XPathExpr $xpath, $attribute, $value)
+    public function translateIncludes(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition($value ? sprintf(
             '%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)',
@@ -80,13 +62,7 @@ class AttributeMatchingExtension extends AbstractExtension
         ) : '0');
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateDashMatch(XPathExpr $xpath, $attribute, $value)
+    public function translateDashMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition(sprintf(
             '%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))',
@@ -96,13 +72,7 @@ class AttributeMatchingExtension extends AbstractExtension
         ));
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translatePrefixMatch(XPathExpr $xpath, $attribute, $value)
+    public function translatePrefixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition($value ? sprintf(
             '%1$s and starts-with(%1$s, %2$s)',
@@ -111,13 +81,7 @@ class AttributeMatchingExtension extends AbstractExtension
         ) : '0');
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateSuffixMatch(XPathExpr $xpath, $attribute, $value)
+    public function translateSuffixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition($value ? sprintf(
             '%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s',
@@ -127,13 +91,7 @@ class AttributeMatchingExtension extends AbstractExtension
         ) : '0');
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateSubstringMatch(XPathExpr $xpath, $attribute, $value)
+    public function translateSubstringMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition($value ? sprintf(
             '%1$s and contains(%1$s, %2$s)',
@@ -142,13 +100,7 @@ class AttributeMatchingExtension extends AbstractExtension
         ) : '0');
     }
 
-    /**
-     * @param string $attribute
-     * @param string $value
-     *
-     * @return XPathExpr
-     */
-    public function translateDifferent(XPathExpr $xpath, $attribute, $value)
+    public function translateDifferent(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
     {
         return $xpath->addCondition(sprintf(
             $value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s',
@@ -160,7 +112,7 @@ class AttributeMatchingExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'attribute-matching';
     }

lib/symfony/css-selector/XPath/Extension/CombinationExtension.php

@@ -28,7 +28,7 @@ class CombinationExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getCombinationTranslators()
+    public function getCombinationTranslators(): array
     {
         return [
             ' ' => [$this, 'translateDescendant'],
@@ -38,26 +38,17 @@ class CombinationExtension extends AbstractExtension
         ];
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath)
+    public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
     {
         return $xpath->join('/descendant-or-self::*/', $combinedXpath);
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath)
+    public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
     {
         return $xpath->join('/', $combinedXpath);
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath)
+    public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
     {
         return $xpath
             ->join('/following-sibling::', $combinedXpath)
@@ -65,10 +56,7 @@ class CombinationExtension extends AbstractExtension
             ->addCondition('position() = 1');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath)
+    public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
     {
         return $xpath->join('/following-sibling::', $combinedXpath);
     }
@@ -76,7 +64,7 @@ class CombinationExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'combination';
     }

lib/symfony/css-selector/XPath/Extension/ExtensionInterface.php

@@ -30,40 +30,38 @@ interface ExtensionInterface
      *
      * @return callable[]
      */
-    public function getNodeTranslators();
+    public function getNodeTranslators(): array;
 
     /**
      * Returns combination translators.
      *
      * @return callable[]
      */
-    public function getCombinationTranslators();
+    public function getCombinationTranslators(): array;
 
     /**
      * Returns function translators.
      *
      * @return callable[]
      */
-    public function getFunctionTranslators();
+    public function getFunctionTranslators(): array;
 
     /**
      * Returns pseudo-class translators.
      *
      * @return callable[]
      */
-    public function getPseudoClassTranslators();
+    public function getPseudoClassTranslators(): array;
 
     /**
      * Returns attribute operation translators.
      *
      * @return callable[]
      */
-    public function getAttributeMatchingTranslators();
+    public function getAttributeMatchingTranslators(): array;
 
     /**
      * Returns extension name.
-     *
-     * @return string
      */
-    public function getName();
+    public function getName(): string;
 }

lib/symfony/css-selector/XPath/Extension/FunctionExtension.php

@@ -33,7 +33,7 @@ class FunctionExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getFunctionTranslators()
+    public function getFunctionTranslators(): array
     {
         return [
             'nth-child' => [$this, 'translateNthChild'],
@@ -46,17 +46,12 @@ class FunctionExtension extends AbstractExtension
     }
 
     /**
-     * @param bool $last
-     * @param bool $addNameTest
-     *
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateNthChild(XPathExpr $xpath, FunctionNode $function, $last = false, $addNameTest = true)
+    public function translateNthChild(XPathExpr $xpath, FunctionNode $function, bool $last = false, bool $addNameTest = true): XPathExpr
     {
         try {
-            list($a, $b) = Parser::parseSeries($function->getArguments());
+            [$a, $b] = Parser::parseSeries($function->getArguments());
         } catch (SyntaxErrorException $e) {
             throw new ExpressionErrorException(sprintf('Invalid series: "%s".', implode('", "', $function->getArguments())), 0, $e);
         }
@@ -108,28 +103,20 @@ class FunctionExtension extends AbstractExtension
         // -1n+6 means elements 6 and previous
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateNthLastChild(XPathExpr $xpath, FunctionNode $function)
+    public function translateNthLastChild(XPathExpr $xpath, FunctionNode $function): XPathExpr
     {
         return $this->translateNthChild($xpath, $function, true);
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateNthOfType(XPathExpr $xpath, FunctionNode $function)
+    public function translateNthOfType(XPathExpr $xpath, FunctionNode $function): XPathExpr
     {
         return $this->translateNthChild($xpath, $function, false, false);
     }
 
     /**
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateNthLastOfType(XPathExpr $xpath, FunctionNode $function)
+    public function translateNthLastOfType(XPathExpr $xpath, FunctionNode $function): XPathExpr
     {
         if ('*' === $xpath->getElement()) {
             throw new ExpressionErrorException('"*:nth-of-type()" is not implemented.');
@@ -139,11 +126,9 @@ class FunctionExtension extends AbstractExtension
     }
 
     /**
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateContains(XPathExpr $xpath, FunctionNode $function)
+    public function translateContains(XPathExpr $xpath, FunctionNode $function): XPathExpr
     {
         $arguments = $function->getArguments();
         foreach ($arguments as $token) {
@@ -159,11 +144,9 @@ class FunctionExtension extends AbstractExtension
     }
 
     /**
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateLang(XPathExpr $xpath, FunctionNode $function)
+    public function translateLang(XPathExpr $xpath, FunctionNode $function): XPathExpr
     {
         $arguments = $function->getArguments();
         foreach ($arguments as $token) {
@@ -181,7 +164,7 @@ class FunctionExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'function';
     }

lib/symfony/css-selector/XPath/Extension/HtmlExtension.php

@@ -39,7 +39,7 @@ class HtmlExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getPseudoClassTranslators()
+    public function getPseudoClassTranslators(): array
     {
         return [
             'checked' => [$this, 'translateChecked'],
@@ -56,17 +56,14 @@ class HtmlExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getFunctionTranslators()
+    public function getFunctionTranslators(): array
     {
         return [
             'lang' => [$this, 'translateLang'],
         ];
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateChecked(XPathExpr $xpath)
+    public function translateChecked(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition(
             '(@checked '
@@ -75,18 +72,12 @@ class HtmlExtension extends AbstractExtension
         );
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateLink(XPathExpr $xpath)
+    public function translateLink(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition("@href and (name(.) = 'a' or name(.) = 'link' or name(.) = 'area')");
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateDisabled(XPathExpr $xpath)
+    public function translateDisabled(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition(
             '('
@@ -112,10 +103,7 @@ class HtmlExtension extends AbstractExtension
         // todo: in the second half, add "and is not a descendant of that fieldset element's first legend element child, if any."
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateEnabled(XPathExpr $xpath)
+    public function translateEnabled(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition(
             '('
@@ -149,11 +137,9 @@ class HtmlExtension extends AbstractExtension
     }
 
     /**
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateLang(XPathExpr $xpath, FunctionNode $function)
+    public function translateLang(XPathExpr $xpath, FunctionNode $function): XPathExpr
     {
         $arguments = $function->getArguments();
         foreach ($arguments as $token) {
@@ -171,34 +157,22 @@ class HtmlExtension extends AbstractExtension
         ));
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateSelected(XPathExpr $xpath)
+    public function translateSelected(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition("(@selected and name(.) = 'option')");
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateInvalid(XPathExpr $xpath)
+    public function translateInvalid(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('0');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateHover(XPathExpr $xpath)
+    public function translateHover(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('0');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateVisited(XPathExpr $xpath)
+    public function translateVisited(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('0');
     }
@@ -206,7 +180,7 @@ class HtmlExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'html';
     }

lib/symfony/css-selector/XPath/Extension/NodeExtension.php

@@ -27,27 +27,21 @@ use Symfony\Component\CssSelector\XPath\XPathExpr;
  */
 class NodeExtension extends AbstractExtension
 {
-    const ELEMENT_NAME_IN_LOWER_CASE = 1;
-    const ATTRIBUTE_NAME_IN_LOWER_CASE = 2;
-    const ATTRIBUTE_VALUE_IN_LOWER_CASE = 4;
+    public const ELEMENT_NAME_IN_LOWER_CASE = 1;
+    public const ATTRIBUTE_NAME_IN_LOWER_CASE = 2;
+    public const ATTRIBUTE_VALUE_IN_LOWER_CASE = 4;
 
     private $flags;
 
-    /**
-     * @param int $flags
-     */
-    public function __construct($flags = 0)
+    public function __construct(int $flags = 0)
     {
         $this->flags = $flags;
     }
 
     /**
-     * @param int  $flag
-     * @param bool $on
-     *
      * @return $this
      */
-    public function setFlag($flag, $on)
+    public function setFlag(int $flag, bool $on): self
     {
         if ($on && !$this->hasFlag($flag)) {
             $this->flags += $flag;
@@ -60,12 +54,7 @@ class NodeExtension extends AbstractExtension
         return $this;
     }
 
-    /**
-     * @param int $flag
-     *
-     * @return bool
-     */
-    public function hasFlag($flag)
+    public function hasFlag(int $flag): bool
     {
         return (bool) ($this->flags & $flag);
     }
@@ -73,7 +62,7 @@ class NodeExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getNodeTranslators()
+    public function getNodeTranslators(): array
     {
         return [
             'Selector' => [$this, 'translateSelector'],
@@ -88,26 +77,17 @@ class NodeExtension extends AbstractExtension
         ];
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateSelector(Node\SelectorNode $node, Translator $translator)
+    public function translateSelector(Node\SelectorNode $node, Translator $translator): XPathExpr
     {
         return $translator->nodeToXPath($node->getTree());
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateCombinedSelector(Node\CombinedSelectorNode $node, Translator $translator)
+    public function translateCombinedSelector(Node\CombinedSelectorNode $node, Translator $translator): XPathExpr
     {
         return $translator->addCombination($node->getCombinator(), $node->getSelector(), $node->getSubSelector());
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateNegation(Node\NegationNode $node, Translator $translator)
+    public function translateNegation(Node\NegationNode $node, Translator $translator): XPathExpr
     {
         $xpath = $translator->nodeToXPath($node->getSelector());
         $subXpath = $translator->nodeToXPath($node->getSubSelector());
@@ -120,30 +100,21 @@ class NodeExtension extends AbstractExtension
         return $xpath->addCondition('0');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateFunction(Node\FunctionNode $node, Translator $translator)
+    public function translateFunction(Node\FunctionNode $node, Translator $translator): XPathExpr
     {
         $xpath = $translator->nodeToXPath($node->getSelector());
 
         return $translator->addFunction($xpath, $node);
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translatePseudo(Node\PseudoNode $node, Translator $translator)
+    public function translatePseudo(Node\PseudoNode $node, Translator $translator): XPathExpr
     {
         $xpath = $translator->nodeToXPath($node->getSelector());
 
         return $translator->addPseudoClass($xpath, $node->getIdentifier());
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateAttribute(Node\AttributeNode $node, Translator $translator)
+    public function translateAttribute(Node\AttributeNode $node, Translator $translator): XPathExpr
     {
         $name = $node->getAttribute();
         $safe = $this->isSafeName($name);
@@ -168,34 +139,25 @@ class NodeExtension extends AbstractExtension
         return $translator->addAttributeMatching($xpath, $node->getOperator(), $attribute, $value);
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateClass(Node\ClassNode $node, Translator $translator)
+    public function translateClass(Node\ClassNode $node, Translator $translator): XPathExpr
     {
         $xpath = $translator->nodeToXPath($node->getSelector());
 
         return $translator->addAttributeMatching($xpath, '~=', '@class', $node->getName());
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateHash(Node\HashNode $node, Translator $translator)
+    public function translateHash(Node\HashNode $node, Translator $translator): XPathExpr
     {
         $xpath = $translator->nodeToXPath($node->getSelector());
 
         return $translator->addAttributeMatching($xpath, '=', '@id', $node->getId());
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateElement(Node\ElementNode $node)
+    public function translateElement(Node\ElementNode $node): XPathExpr
     {
         $element = $node->getElement();
 
-        if ($this->hasFlag(self::ELEMENT_NAME_IN_LOWER_CASE)) {
+        if ($element && $this->hasFlag(self::ELEMENT_NAME_IN_LOWER_CASE)) {
             $element = strtolower($element);
         }
 
@@ -223,19 +185,12 @@ class NodeExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'node';
     }
 
-    /**
-     * Tests if given name is safe.
-     *
-     * @param string $name
-     *
-     * @return bool
-     */
-    private function isSafeName($name)
+    private function isSafeName(string $name): bool
     {
         return 0 < preg_match('~^[a-zA-Z_][a-zA-Z0-9_.-]*$~', $name);
     }

lib/symfony/css-selector/XPath/Extension/PseudoClassExtension.php

@@ -29,7 +29,7 @@ class PseudoClassExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getPseudoClassTranslators()
+    public function getPseudoClassTranslators(): array
     {
         return [
             'root' => [$this, 'translateRoot'],
@@ -43,18 +43,12 @@ class PseudoClassExtension extends AbstractExtension
         ];
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateRoot(XPathExpr $xpath)
+    public function translateRoot(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('not(parent::*)');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateFirstChild(XPathExpr $xpath)
+    public function translateFirstChild(XPathExpr $xpath): XPathExpr
     {
         return $xpath
             ->addStarPrefix()
@@ -62,10 +56,7 @@ class PseudoClassExtension extends AbstractExtension
             ->addCondition('position() = 1');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateLastChild(XPathExpr $xpath)
+    public function translateLastChild(XPathExpr $xpath): XPathExpr
     {
         return $xpath
             ->addStarPrefix()
@@ -74,11 +65,9 @@ class PseudoClassExtension extends AbstractExtension
     }
 
     /**
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateFirstOfType(XPathExpr $xpath)
+    public function translateFirstOfType(XPathExpr $xpath): XPathExpr
     {
         if ('*' === $xpath->getElement()) {
             throw new ExpressionErrorException('"*:first-of-type" is not implemented.');
@@ -90,11 +79,9 @@ class PseudoClassExtension extends AbstractExtension
     }
 
     /**
-     * @return XPathExpr
-     *
      * @throws ExpressionErrorException
      */
-    public function translateLastOfType(XPathExpr $xpath)
+    public function translateLastOfType(XPathExpr $xpath): XPathExpr
     {
         if ('*' === $xpath->getElement()) {
             throw new ExpressionErrorException('"*:last-of-type" is not implemented.');
@@ -105,10 +92,7 @@ class PseudoClassExtension extends AbstractExtension
             ->addCondition('position() = last()');
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateOnlyChild(XPathExpr $xpath)
+    public function translateOnlyChild(XPathExpr $xpath): XPathExpr
     {
         return $xpath
             ->addStarPrefix()
@@ -116,26 +100,14 @@ class PseudoClassExtension extends AbstractExtension
             ->addCondition('last() = 1');
     }
 
-    /**
-     * @return XPathExpr
-     *
-     * @throws ExpressionErrorException
-     */
-    public function translateOnlyOfType(XPathExpr $xpath)
+    public function translateOnlyOfType(XPathExpr $xpath): XPathExpr
     {
         $element = $xpath->getElement();
 
-        if ('*' === $element) {
-            throw new ExpressionErrorException('"*:only-of-type" is not implemented.');
-        }
-
         return $xpath->addCondition(sprintf('count(preceding-sibling::%s)=0 and count(following-sibling::%s)=0', $element, $element));
     }
 
-    /**
-     * @return XPathExpr
-     */
-    public function translateEmpty(XPathExpr $xpath)
+    public function translateEmpty(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('not(*) and not(string-length())');
     }
@@ -143,7 +115,7 @@ class PseudoClassExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'pseudo-class';
     }