Fix missing error handling

Author: cracksalad

.github/workflows/ci.yml

@@ -34,10 +34,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Psalm
-        uses: docker://ghcr.io/psalm/psalm-github-actions
+        uses: docker://ghcr.io/psalm/psalm-github-actions:6.4.1
         with:
           args: --shepherd
-          php_version: "8.0"
 
   test:
     runs-on: ubuntu-latest

.phive/phars.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="phpunit" version="^10.0.0" installed="10.5.3" location="./tools/phpunit" copy="true"/>
-  <phar name="psalm" version="^5.12.0" installed="5.17.0" location="./tools/psalm" copy="true"/>
+  <phar name="phpunit" version="^10.0.0" installed="10.5.45" location="./tools/phpunit" copy="true"/>
+  <phar name="psalm" version="~6.4.0" installed="6.4.1" location="./tools/psalm" copy="true"/>
   <phar name="phpcpd" version="^6.0.0" installed="6.0.3" location="./tools/phpcpd" copy="true"/>
 </phive>

psalm.xml

@@ -7,7 +7,8 @@
 		    errorBaseline="psalm.baseline.xml"
 		    errorLevel="2"
 		    findUnusedBaselineEntry="false"
-		    findUnusedCode="false">
+		    findUnusedCode="false"
+		    phpVersion="8.0">
 
     <projectFiles>
         <directory name="src" />

src/LargeArrayBuffer.php

@@ -79,14 +79,17 @@ public function __construct(int $maxMemoryMiB = 1024, int $serializer = self::SE
 
   /**
    * @psalm-param E $item
-   * @throws \RuntimeException if unable to write to php://temp
+   * @throws \RuntimeException if unable to write to php://temp, the serialization failed or the compression failed
    */
   public function push(mixed $item): void {
     $serialized = match($this->serializer){
       self::SERIALIZER_IGBINARY => igbinary_serialize($item),
       self::SERIALIZER_MSGPACK => msgpack_serialize($item),
       default => serialize($item)
     };
+    if($serialized === false){
+      throw new \RuntimeException('failed to serialize data');
+    }
     /** @var string|false $compressed */
     $compressed = match($this->compression){
       self::COMPRESSION_GZIP => gzdeflate($serialized),
@@ -219,7 +222,14 @@ public function toJSONFile($dest, int $flags = JSON_THROW_ON_ERROR, int $depth =
       if(($flags & JSON_PRETTY_PRINT) > 0){
         fwrite($stream, PHP_EOL.'    ');
       }
-      fwrite($stream, json_encode($item, $flags, $depth));
+      $json = json_encode($item, $flags, $depth);
+      if($json === false){
+        if(is_string($dest)){
+          fclose($stream);
+        }
+        throw new \RuntimeException('failed to serialize data');
+      }
+      fwrite($stream, $json);
       fflush($stream);
       $first = false;
     }