X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=vendor%2Fnikic%2Fphp-parser%2Flib%2FPhpParser%2FNodeTraverser.php;fp=vendor%2Fnikic%2Fphp-parser%2Flib%2FPhpParser%2FNodeTraverser.php;h=97d45bdaaa7c95ba7ecdae9580a83e3239732bd1;hp=fe3045aebcf45998783fbe96d15c7ea770d6e85e;hb=0bf8d09d2542548982e81a441b1f16e75873a04f;hpb=74df008bdbb3a11eeea356744f39b802369bda3c

diff --git a/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php b/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php
index fe3045aeb..97d45bdaa 100644
--- a/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php
+++ b/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php
@@ -30,17 +30,23 @@ class NodeTraverser implements NodeTraverserInterface
      */
     const REMOVE_NODE = 3;
 
+    /**
+     * If NodeVisitor::enterNode() returns DONT_TRAVERSE_CURRENT_AND_CHILDREN, child nodes
+     * of the current node will not be traversed for any visitors.
+     *
+     * For subsequent visitors enterNode() will not be called as well.
+     * leaveNode() will be invoked for visitors that has enterNode() method invoked.
+     */
+    const DONT_TRAVERSE_CURRENT_AND_CHILDREN = 4;
+
     /** @var NodeVisitor[] Visitors */
-    protected $visitors;
+    protected $visitors = [];
 
     /** @var bool Whether traversal should be stopped */
     protected $stopTraversal;
 
-    /**
-     * Constructs a node traverser.
-     */
     public function __construct() {
-        $this->visitors = [];
+        // for BC
     }
 
     /**
@@ -111,7 +117,9 @@ class NodeTraverser implements NodeTraverserInterface
                 }
             } elseif ($subNode instanceof Node) {
                 $traverseChildren = true;
-                foreach ($this->visitors as $visitor) {
+                $breakVisitorIndex = null;
+
+                foreach ($this->visitors as $visitorIndex => $visitor) {
                     $return = $visitor->enterNode($subNode);
                     if (null !== $return) {
                         if ($return instanceof Node) {
@@ -119,6 +127,10 @@ class NodeTraverser implements NodeTraverserInterface
                             $subNode = $return;
                         } elseif (self::DONT_TRAVERSE_CHILDREN === $return) {
                             $traverseChildren = false;
+                        } elseif (self::DONT_TRAVERSE_CURRENT_AND_CHILDREN === $return) {
+                            $traverseChildren = false;
+                            $breakVisitorIndex = $visitorIndex;
+                            break;
                         } elseif (self::STOP_TRAVERSAL === $return) {
                             $this->stopTraversal = true;
                             break 2;
@@ -137,8 +149,9 @@ class NodeTraverser implements NodeTraverserInterface
                     }
                 }
 
-                foreach ($this->visitors as $visitor) {
+                foreach ($this->visitors as $visitorIndex => $visitor) {
                     $return = $visitor->leaveNode($subNode);
+
                     if (null !== $return) {
                         if ($return instanceof Node) {
                             $this->ensureReplacementReasonable($subNode, $return);
@@ -157,6 +170,10 @@ class NodeTraverser implements NodeTraverserInterface
                             );
                         }
                     }
+
+                    if ($breakVisitorIndex === $visitorIndex) {
+                        break;
+                    }
                 }
             }
         }
@@ -177,7 +194,9 @@ class NodeTraverser implements NodeTraverserInterface
         foreach ($nodes as $i => &$node) {
             if ($node instanceof Node) {
                 $traverseChildren = true;
-                foreach ($this->visitors as $visitor) {
+                $breakVisitorIndex = null;
+
+                foreach ($this->visitors as $visitorIndex => $visitor) {
                     $return = $visitor->enterNode($node);
                     if (null !== $return) {
                         if ($return instanceof Node) {
@@ -185,6 +204,10 @@ class NodeTraverser implements NodeTraverserInterface
                             $node = $return;
                         } elseif (self::DONT_TRAVERSE_CHILDREN === $return) {
                             $traverseChildren = false;
+                        } elseif (self::DONT_TRAVERSE_CURRENT_AND_CHILDREN === $return) {
+                            $traverseChildren = false;
+                            $breakVisitorIndex = $visitorIndex;
+                            break;
                         } elseif (self::STOP_TRAVERSAL === $return) {
                             $this->stopTraversal = true;
                             break 2;
@@ -203,8 +226,9 @@ class NodeTraverser implements NodeTraverserInterface
                     }
                 }
 
-                foreach ($this->visitors as $visitor) {
+                foreach ($this->visitors as $visitorIndex => $visitor) {
                     $return = $visitor->leaveNode($node);
+
                     if (null !== $return) {
                         if ($return instanceof Node) {
                             $this->ensureReplacementReasonable($node, $return);
@@ -229,6 +253,10 @@ class NodeTraverser implements NodeTraverserInterface
                             );
                         }
                     }
+
+                    if ($breakVisitorIndex === $visitorIndex) {
+                        break;
+                    }
                 }
             } elseif (\is_array($node)) {
                 throw new \LogicException('Invalid node structure: Contains nested arrays');