14 functions implement hook_file_download()
Note: the procedural functions in this list are found by pattern matching, so the list may include some functions that are not actually implementations of this hook.
- ConfigHooks::fileDownload in core/
modules/ config/ src/ Hook/ ConfigHooks.php  - Implements hook_file_download().
 - config_file_download in core/
modules/ config/ config.module  - Implements hook_file_download().
 - EditorHooks::fileDownload in core/
modules/ editor/ src/ Hook/ EditorHooks.php  - Implements hook_file_download().
 - editor_file_download in core/
modules/ editor/ editor.module  - Implements hook_file_download().
 - FileDownloadHook in core/
modules/ file/ src/ Hook/ FileDownloadHook.php  - Implements hook_file_download().
 - FileTestHooks::fileDownload in core/
modules/ file/ tests/ file_test/ src/ Hook/ FileTestHooks.php  - Implements hook_file_download().
 - file_file_download in core/
modules/ file/ file.module  - Implements hook_file_download().
 - file_test_file_download in core/
modules/ file/ tests/ file_test/ file_test.module  - Implements hook_file_download().
 - ImageHooks::fileDownload in core/
modules/ image/ src/ Hook/ ImageHooks.php  - Implements hook_file_download().
 - ImageModuleTestHooks::fileDownload in core/
modules/ image/ tests/ modules/ image_module_test/ src/ Hook/ ImageModuleTestHooks.php  - Implements hook_file_download().
 - image_file_download in core/
modules/ image/ image.module  - Implements hook_file_download().
 - image_module_test_file_download in core/
modules/ image/ tests/ modules/ image_module_test/ image_module_test.module  - SystemHooks::fileDownload in core/
modules/ system/ src/ Hook/ SystemHooks.php  - Implements hook_file_download().
 - system_file_download in core/
modules/ system/ system.module  - Implements hook_file_download().
 
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