Use a custom AttachableImageFormat type instead of directly relying on UTType.
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… on `UTType`. This PR creates a platform-agnostic type to represent image formats for image attachments instead of relying directly on `UTType`. The implementation still requires `UTType` on Apple platforms, but on non-Apple platforms we can use the same type to represent those platforms' platform-specific image format enums (e.g. on Windows, it can box `CLSID`.) This reduces the platform-specific API surface area for image attachments.
grynspan
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@swift-ci test |
grynspan
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Jul 7, 2025
| // the preferred name's path extension. | ||
| let pathExtension = (preferredName as NSString).pathExtension | ||
| if !pathExtension.isEmpty, | ||
| let contentType = UTType(filenameExtension: pathExtension, conformingTo: .image), |
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Note to self: on Windows, ImageCodecInfo::FilenameExtension should help us here. Windows does not have hierarchical type declarations (does it?)
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Pointer to a null-terminated string that contains all file-name extensions associated with the codec. The extensions are separated by semicolons.
briancroom
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Jul 8, 2025
briancroom
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Jul 8, 2025
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Jul 8, 2025
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This PR creates a platform-agnostic type to represent image formats for image attachments instead of relying directly on
UTType. The implementation still requiresUTTypeon Apple platforms, but on non-Apple platforms we can use the same type to represent those platforms' platform-specific image format enums (e.g. on Windows, it can boxCLSID.) This reduces the platform-specific API surface area for image attachments.Checklist: