laravel-6 support

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

@@ -29,36 +29,26 @@ class PseudoClassExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getPseudoClassTranslators()
+    public function getPseudoClassTranslators(): array
     {
-        return array(
-            'root' => array($this, 'translateRoot'),
-            'first-child' => array($this, 'translateFirstChild'),
-            'last-child' => array($this, 'translateLastChild'),
-            'first-of-type' => array($this, 'translateFirstOfType'),
-            'last-of-type' => array($this, 'translateLastOfType'),
-            'only-child' => array($this, 'translateOnlyChild'),
-            'only-of-type' => array($this, 'translateOnlyOfType'),
-            'empty' => array($this, 'translateEmpty'),
-        );
+        return [
+            'root' => [$this, 'translateRoot'],
+            'first-child' => [$this, 'translateFirstChild'],
+            'last-child' => [$this, 'translateLastChild'],
+            'first-of-type' => [$this, 'translateFirstOfType'],
+            'last-of-type' => [$this, 'translateLastOfType'],
+            'only-child' => [$this, 'translateOnlyChild'],
+            'only-of-type' => [$this, 'translateOnlyOfType'],
+            'empty' => [$this, 'translateEmpty'],
+        ];
     }
 
-    /**
-     * @param XPathExpr $xpath
-     *
-     * @return XPathExpr
-     */
-    public function translateRoot(XPathExpr $xpath)
+    public function translateRoot(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('not(parent::*)');
     }
 
-    /**
-     * @param XPathExpr $xpath
-     *
-     * @return XPathExpr
-     */
-    public function translateFirstChild(XPathExpr $xpath)
+    public function translateFirstChild(XPathExpr $xpath): XPathExpr
     {
         return $xpath
             ->addStarPrefix()
@@ -66,12 +56,7 @@ class PseudoClassExtension extends AbstractExtension
             ->addCondition('position() = 1');
     }
 
-    /**
-     * @param XPathExpr $xpath
-     *
-     * @return XPathExpr
-     */
-    public function translateLastChild(XPathExpr $xpath)
+    public function translateLastChild(XPathExpr $xpath): XPathExpr
     {
         return $xpath
             ->addStarPrefix()
@@ -80,13 +65,9 @@ class PseudoClassExtension extends AbstractExtension
     }
 
     /**
-     * @param XPathExpr $xpath
-     *
-     * @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.');
@@ -98,13 +79,9 @@ class PseudoClassExtension extends AbstractExtension
     }
 
     /**
-     * @param XPathExpr $xpath
-     *
-     * @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.');
@@ -115,12 +92,7 @@ class PseudoClassExtension extends AbstractExtension
             ->addCondition('position() = last()');
     }
 
-    /**
-     * @param XPathExpr $xpath
-     *
-     * @return XPathExpr
-     */
-    public function translateOnlyChild(XPathExpr $xpath)
+    public function translateOnlyChild(XPathExpr $xpath): XPathExpr
     {
         return $xpath
             ->addStarPrefix()
@@ -128,28 +100,14 @@ class PseudoClassExtension extends AbstractExtension
             ->addCondition('last() = 1');
     }
 
-    /**
-     * @param XPathExpr $xpath
-     *
-     * @return XPathExpr
-     *
-     * @throws ExpressionErrorException
-     */
-    public function translateOnlyOfType(XPathExpr $xpath)
+    public function translateOnlyOfType(XPathExpr $xpath): XPathExpr
     {
-        if ('*' === $xpath->getElement()) {
-            throw new ExpressionErrorException('"*:only-of-type" is not implemented.');
-        }
+        $element = $xpath->getElement();
 
-        return $xpath->addCondition('last() = 1');
+        return $xpath->addCondition(sprintf('count(preceding-sibling::%s)=0 and count(following-sibling::%s)=0', $element, $element));
     }
 
-    /**
-     * @param XPathExpr $xpath
-     *
-     * @return XPathExpr
-     */
-    public function translateEmpty(XPathExpr $xpath)
+    public function translateEmpty(XPathExpr $xpath): XPathExpr
     {
         return $xpath->addCondition('not(*) and not(string-length())');
     }
@@ -157,7 +115,7 @@ class PseudoClassExtension extends AbstractExtension
     /**
      * {@inheritdoc}
      */
-    public function getName()
+    public function getName(): string
     {
         return 'pseudo-class';
     }