Faster document to array reader

Author: veewee

src/Xml/Reader/DocumentToLookupArrayReader.php

@@ -3,10 +3,11 @@
 
 namespace Soap\Encoding\Xml\Reader;
 
+use DOMAttr;
+use DOMNode;
 use Soap\Encoding\Xml\Node\Element;
 use Soap\Encoding\Xml\Node\ElementList;
-use function VeeWee\Xml\Dom\Locator\Attribute\attributes_list;
-use function VeeWee\Xml\Dom\Locator\Element\children as readChildElements;
+use function VeeWee\Xml\Dom\Predicate\is_element;
 
 final class DocumentToLookupArrayReader
 {
@@ -22,8 +23,13 @@ public function __invoke(Element $xml): array
         // Read all child elements.
         // The key is the name of the elements
         // The value is the raw XML for those element(s)
-        $elements = readChildElements($root);
-        foreach ($elements as $element) {
+        /** @var iterable<DOMNode> $children */
+        $children = $root->childNodes;
+        foreach ($children as $element) {
+            if (!is_element($element)) {
+                continue;
+            }
+
             $key = $element->localName ?? 'unknown';
             $previousValue = $nodes[$key] ?? null;
             $currentElement = Element::fromDOMElement($element);
@@ -41,13 +47,14 @@ public function __invoke(Element $xml): array
 
         // It might be possible that the child is a regular textNode.
         // In that case, we use '_' as the key and the value of the textNode as value.
-        $content = trim($root->textContent);
-        if (!$elements->count() && $content) {
+        if (!$nodes && $content = trim($root->textContent)) {
             $nodes['_'] = $content;
         }
 
         // All attributes also need to be added as key => value pairs.
-        foreach (attributes_list($root) as $attribute) {
+        /** @var \iterable<DOMAttr> $attributes */
+        $attributes = $root->attributes;
+        foreach ($attributes as $attribute) {
             $key = $attribute->localName ?? 'unkown';
             $nodes[$key] = $attribute->value;
         }