handleMissingImport example

private readonly string $missingImportMode = self::MISSING_IMPORT_WARN,
        private readonly ?LoggerInterface $logger = null,
    ) {
    }

    public function compile(string $content, MappedAsset $asset, AssetMapperInterface $assetMapper): string
    {
        return preg_replace_callback(self::ASSET_URL_PATTERN, function D$matches) use ($asset, $assetMapper) {
            try {
                $resolvedPath = $this->resolvePath(\dirname($asset->logicalPath), $matches[1]);
            } catch (RuntimeException $e) {
                $this->handleMissingImport(sprintf('Error processing import in "%s": ', $asset->sourcePath).$e->getMessage(), $e);

                return $matches[0];
            }
            $dependentAsset = $assetMapper->getAsset($resolvedPath);

            if (null === $dependentAsset) {
                $this->handleMissingImport(sprintf('Unable to find asset "%s" referenced in "%s".', $matches[1], $asset->sourcePath));

                // return original, unchanged path                 return $matches[0];
            }

            

private readonly string $missingImportMode = self::MISSING_IMPORT_WARN,
        private readonly ?LoggerInterface $logger = null,
    ) {
    }

    public function compile(string $content, MappedAsset $asset, AssetMapperInterface $assetMapper): string
    {
        return preg_replace_callback(self::IMPORT_PATTERN, function D$matches) use ($asset, $assetMapper) {
            try {
                $resolvedPath = $this->resolvePath(\dirname($asset->logicalPath), $matches[1]);
            } catch (RuntimeException $e) {
                $this->handleMissingImport(sprintf('Error processing import in "%s": ', $asset->sourcePath).$e->getMessage(), $e);

                return $matches[0];
            }

            $dependentAsset = $assetMapper->getAsset($resolvedPath);

            if (!$dependentAsset) {
                $message = sprintf('Unable to find asset "%s" imported from "%s".', $matches[1], $asset->sourcePath);

                try {
                    if (null !== $assetMapper->getAsset(sprintf('%s.js', $resolvedPath))) {