From 35810ebc988c6c9d8e9c187146dd29b5fffb6b5d Mon Sep 17 00:00:00 2001
From: Arne Blankerts <Arne@Blankerts.de>
Date: Sat, 2 Dec 2023 11:38:06 +0100
Subject: [PATCH] Make psalm happy

---
 src/document/DocumentCollection.php |  5 +++--
 src/serializer/HTMLSerializer.php   | 25 +++++++++++++++----------
 2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/src/document/DocumentCollection.php b/src/document/DocumentCollection.php
index a110da1..fb38eae 100644
--- a/src/document/DocumentCollection.php
+++ b/src/document/DocumentCollection.php
@@ -10,6 +10,7 @@
 namespace Templado\Engine;
 
 use function array_push;
+use function array_values;
 use function count;
 use ArrayIterator;
 use Countable;
@@ -21,7 +22,7 @@ final class DocumentCollection implements Countable, IteratorAggregate {
     private array $documents;
 
     public function __construct(Document ...$documents) {
-        $this->documents = $documents;
+        $this->documents = array_values($documents);
     }
 
     public function count(): int {
@@ -29,7 +30,7 @@ public function count(): int {
     }
 
     public function add(Document ...$documents): void {
-        array_push($this->documents, ...$documents);
+        array_push($this->documents, ...array_values($documents));
     }
 
     /** @return ArrayIterator<int<0,max>, Document> */
diff --git a/src/serializer/HTMLSerializer.php b/src/serializer/HTMLSerializer.php
index ecc9140..8c5b1ae 100644
--- a/src/serializer/HTMLSerializer.php
+++ b/src/serializer/HTMLSerializer.php
@@ -29,7 +29,7 @@ class HTMLSerializer implements Serializer {
 
     private bool $withDoctypeFlag = true;
 
-    private bool $isFirst;
+    private bool $isFirst = true;
 
     /** @psalm-var list<Filter> */
     private array $filters = [];
@@ -120,11 +120,12 @@ private function serializeToCleanedString(DOMDocument $document): string {
     }
 
     private function walk(XMLWriter $writer, DOMNode $node, array $knownPrefixes): void {
-        assert($node->ownerDocument instanceof DOMDocument);
+        $dom = $node->ownerDocument;
+        assert($dom instanceof DOMDocument);
 
         if (!$node instanceof DOMElement) {
             $writer->writeRaw(
-                $node->ownerDocument->saveXML($node)
+                $dom->saveXML($node)
             );
 
             return;
@@ -149,21 +150,24 @@ private function walk(XMLWriter $writer, DOMNode $node, array $knownPrefixes): v
         }
 
         foreach ($node->attributes as $attribute) {
-            assert($attribute instanceof DOMAttr);
-
             if ($this->stripRDFaFlag && in_array($attribute->name, ['property', 'resource', 'prefix', 'typeof', 'vocab'], true)) {
                 continue;
             }
 
-            if (empty($attribute->prefix)) {
+            $prefix = $attribute->prefix;
+
+            if (empty($prefix)) {
                 $writer->writeAttribute($attribute->name, $attribute->value);
 
                 continue;
             }
 
-            if (!isset($knownPrefixes[$attribute->prefix])) {
-                $knownPrefixes[$attribute->prefix] = $node->lookupNamespaceURI($attribute->prefix);
-                $writer->writeAttribute('xmlns:' . $attribute->prefix, $node->lookupNamespaceURI($attribute->prefix));
+            if (!isset($knownPrefixes[$prefix])) {
+                $nsUri = $node->lookupNamespaceURI($prefix);
+                assert($nsUri !== null);
+
+                $knownPrefixes[$prefix] = $nsUri;
+                $writer->writeAttribute('xmlns:' . $prefix, $nsUri);
             }
 
             $writer->writeAttribute(
@@ -172,7 +176,8 @@ private function walk(XMLWriter $writer, DOMNode $node, array $knownPrefixes): v
             );
         }
 
-        foreach ((new DOMXPath($node->ownerDocument))->query('./namespace::*', $node) as $nsNode) {
+        foreach ((new DOMXPath($dom))->query('./namespace::*', $node) as $nsNode) {
+            /** @psalm-suppress DocblockTypeContradiction */
             assert($nsNode instanceof DOMNameSpaceNode);
 
             if (empty($nsNode->prefix) || $nsNode->prefix === 'xml') {