https://issues.dlang.org/show_bug.cgi?id=15692
Alex Parrill <initrd...@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |initrd...@gmail.com --- Comment #1 from Alex Parrill <initrd...@gmail.com> --- My use case: Vulkan uses structs to pass large amounts of parameters around. My current code looks like this: VkImageCreateInfo imgInfo = { imageType: VkImageType.VK_IMAGE_TYPE_2D, format: VkFormat.VK_FORMAT_R8G8B8A8_UNORM, // TODO: only allocate alpha if needed extent: image.size, mipLevels: image.mipLevels, arrayLayers: image.layers, samples: VkSampleCountFlagBits.VK_SAMPLE_COUNT_1_BIT, tiling: VkImageTiling.VK_IMAGE_TILING_LINEAR, //VK_IMAGE_TILING_OPTIMAL, usage: VkImageUsageFlagBits.VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VkImageUsageFlagBits.VK_IMAGE_USAGE_SAMPLED_BIT, sharingMode: VkSharingMode.VK_SHARING_MODE_EXCLUSIVE, initialLayout: VkImageLayout.VK_IMAGE_LAYOUT_PREINITIALIZED, }; enforceVK(vkCreateImage(device, &imgInfo, null, &image.img)); It'd be really nice if it were possible to specify the struct inline with the creation call: auto img = createImage(device, VkImageCreateInfo { imageType: VkImageType.VK_IMAGE_TYPE_2D, // ... initialLayout: VkImageLayout.VK_IMAGE_LAYOUT_PREINITIALIZED, }); It'd also be very helpful for returning info structs from lamdas: auto queueCreateInfo = priorities .enumerate .filter!(x => x[1].length > 0) .map!((x) { VkDeviceQueueCreateInfo info = { queueFamilyIndex: x[0], queueCount: cast(uint) x[1].length, pQueuePriorities: x[1].ptr, }; return info; }) .array; You also basically have to use the the named field initialization syntax because each Vulkan info struct begins with a `sType` field and a `pNext` field, which at the moment should be a struct-specific constant and null that you don't really want to specify each time you create the struct. --