Be more deterministic

Author: ondrejmirtes

extractor/extract.php

@@ -99,9 +99,15 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			$stubPath = $file->getRealPath();
 			[$tmpClasses, $tmpFunctions] = $this->extractStub($stubPath, $file->getRelativePathname(), $isUpdate, $updateFrom, $updateTo);
 			foreach ($tmpClasses as $className => $fileName) {
+				if (array_key_exists($className, $addClasses)) {
+					throw new \Exception('Duplicate class ' . $className);
+				}
 				$addClasses[$className] = $fileName;
 			}
 			foreach ($tmpFunctions as $functionName => $fileName) {
+				if (array_key_exists($functionName, $addFunctions)) {
+					continue;
+				}
 				$addFunctions[$functionName] = $fileName;
 			}
 		}
@@ -731,6 +737,8 @@ private function findPhpDocReturn(PhpDocNode $node): ?ReturnTagValueNode
 	 */
 	private function dumpMap(array $classes, array $functions, ?string $updateTo, array $addClasses, array $addFunctions): void
 	{
+		ksort($classes);
+		ksort($functions);
 		$template = <<<'PHP'
 <?php declare(strict_types = 1);
 
@@ -778,6 +786,9 @@ public function __construct(int $phpVersionId)
 // UPDATE BELONGS HERE
 PHP;
 
+		ksort($addClasses);
+		ksort($addFunctions);
+
 		$parts = explode('.', $updateTo);
 		$phpVersion = (int) $parts[0] * 10000 + (int) ($parts[1] ?? 0) * 100 + (int) ($parts[2] ?? 0);
 		$updateString = sprintf(