diff --git a/vulkan/scripts/code_generator.py b/vulkan/scripts/code_generator.py
index 2a017d2..051816d 100755
--- a/vulkan/scripts/code_generator.py
+++ b/vulkan/scripts/code_generator.py
@@ -21,6 +21,7 @@
 import driver_generator
 import generator_common
 import null_generator
+import vkjson_generator
 
 if __name__ == '__main__':
   generator_common.parse_vulkan_registry()
@@ -30,3 +31,6 @@
   driver_generator.gen_cpp()
   null_generator.gen_h()
   null_generator.gen_cpp()
+  vkjson_generator.gen_h()
+  vkjson_generator.gen_cc()
+  vkjson_generator.gen_instance_cc()
diff --git a/vulkan/scripts/vk.py b/vulkan/scripts/vk.py
new file mode 100644
index 0000000..983e0dc
--- /dev/null
+++ b/vulkan/scripts/vk.py
@@ -0,0 +1,968 @@
+import ctypes
+import dataclasses
+import enum
+from typing import List
+
+dataclass = dataclasses.dataclass
+Enum = enum.Enum
+
+# TODO(b/401184058): Automate this file for generating the vulkan structs graph from vk.xml
+VK_UUID_SIZE = 16
+VK_LUID_SIZE = 16
+
+VkImageLayout = Enum
+uint8_t = ctypes.c_uint8
+uint32_t = ctypes.c_uint32
+VkFlags = uint32_t
+VkMemoryPropertyFlags = VkFlags
+VkMemoryHeapFlags = VkFlags
+int32_t = int
+uint64_t = ctypes.c_uint64
+VkBool32 = bool
+VkDeviceSize = ctypes.c_uint64
+size_t = int
+VkSampleCountFlags = ctypes.c_uint32
+VkFormatFeatureFlags = ctypes.c_uint32
+VkQueueFlags = ctypes.c_uint32
+VkShaderStageFlags = ctypes.c_uint32
+VkSubgroupFeatureFlags = ctypes.c_uint32
+VkResolveModeFlags = ctypes.c_uint32
+float_t = ctypes.c_float
+VkShaderFloatControlsIndependence = Enum
+VkPointClippingBehavior = Enum
+VkPhysicalDeviceType = Enum
+VkDriverId = Enum
+VkPipelineRobustnessBufferBehavior = Enum
+
+
+@dataclass
+class ConformanceVersion:
+  major: uint8_t
+  minor: uint8_t
+  subminor: uint8_t
+  patch: uint8_t
+
+
+@dataclass
+class VkExtent3D:
+  width: uint32_t
+  height: uint32_t
+  depth: uint32_t
+
+
+@dataclass
+class VkPhysicalDeviceLimits:
+  maxImageDimension1D: uint32_t
+  maxImageDimension2D: uint32_t
+  maxImageDimension3D: uint32_t
+  maxImageDimensionCube: uint32_t
+  maxImageArrayLayers: uint32_t
+  maxTexelBufferElements: uint32_t
+  maxUniformBufferRange: uint32_t
+  maxStorageBufferRange: uint32_t
+  maxPushConstantsSize: uint32_t
+  maxMemoryAllocationCount: uint32_t
+  maxSamplerAllocationCount: uint32_t
+  bufferImageGranularity: VkDeviceSize
+  sparseAddressSpaceSize: VkDeviceSize
+  maxBoundDescriptorSets: uint32_t
+  maxPerStageDescriptorSamplers: uint32_t
+  maxPerStageDescriptorUniformBuffers: uint32_t
+  maxPerStageDescriptorStorageBuffers: uint32_t
+  maxPerStageDescriptorSampledImages: uint32_t
+  maxPerStageDescriptorStorageImages: uint32_t
+  maxPerStageDescriptorInputAttachments: uint32_t
+  maxPerStageResources: uint32_t
+  maxDescriptorSetSamplers: uint32_t
+  maxDescriptorSetUniformBuffers: uint32_t
+  maxDescriptorSetUniformBuffersDynamic: uint32_t
+  maxDescriptorSetStorageBuffers: uint32_t
+  maxDescriptorSetStorageBuffersDynamic: uint32_t
+  maxDescriptorSetSampledImages: uint32_t
+  maxDescriptorSetStorageImages: uint32_t
+  maxDescriptorSetInputAttachments: uint32_t
+  maxVertexInputAttributes: uint32_t
+  maxVertexInputBindings: uint32_t
+  maxVertexInputAttributeOffset: uint32_t
+  maxVertexInputBindingStride: uint32_t
+  maxVertexOutputComponents: uint32_t
+  maxTessellationGenerationLevel: uint32_t
+  maxTessellationPatchSize: uint32_t
+  maxTessellationControlPerVertexInputComponents: uint32_t
+  maxTessellationControlPerVertexOutputComponents: uint32_t
+  maxTessellationControlPerPatchOutputComponents: uint32_t
+  maxTessellationControlTotalOutputComponents: uint32_t
+  maxTessellationEvaluationInputComponents: uint32_t
+  maxTessellationEvaluationOutputComponents: uint32_t
+  maxGeometryShaderInvocations: uint32_t
+  maxGeometryInputComponents: uint32_t
+  maxGeometryOutputComponents: uint32_t
+  maxGeometryOutputVertices: uint32_t
+  maxGeometryTotalOutputComponents: uint32_t
+  maxFragmentInputComponents: uint32_t
+  maxFragmentOutputAttachments: uint32_t
+  maxFragmentDualSrcAttachments: uint32_t
+  maxFragmentCombinedOutputResources: uint32_t
+  maxComputeSharedMemorySize: uint32_t
+  maxComputeWorkGroupCount: uint32_t*3
+  maxComputeWorkGroupInvocations: uint32_t
+  maxComputeWorkGroupSize: uint32_t*3
+  subPixelPrecisionBits: uint32_t
+  subTexelPrecisionBits: uint32_t
+  mipmapPrecisionBits: uint32_t
+  maxDrawIndexedIndexValue: uint32_t
+  maxDrawIndirectCount: uint32_t
+  maxSamplerLodBias: float
+  maxSamplerAnisotropy: float
+  maxViewports: uint32_t
+  maxViewportDimensions: uint32_t*2
+  viewportBoundsRange: float_t*2
+  viewportSubPixelBits: uint32_t
+  minMemoryMapAlignment: size_t
+  minTexelBufferOffsetAlignment: VkDeviceSize
+  minUniformBufferOffsetAlignment: VkDeviceSize
+  minStorageBufferOffsetAlignment: VkDeviceSize
+  minTexelOffset: int32_t
+  maxTexelOffset: uint32_t
+  minTexelGatherOffset: int32_t
+  maxTexelGatherOffset: uint32_t
+  minInterpolationOffset: float
+  maxInterpolationOffset: float
+  subPixelInterpolationOffsetBits: uint32_t
+  maxFramebufferWidth: uint32_t
+  maxFramebufferHeight: uint32_t
+  maxFramebufferLayers: uint32_t
+  framebufferColorSampleCounts: VkSampleCountFlags
+  framebufferDepthSampleCounts: VkSampleCountFlags
+  framebufferStencilSampleCounts: VkSampleCountFlags
+  framebufferNoAttachmentsSampleCounts: VkSampleCountFlags
+  maxColorAttachments: uint32_t
+  sampledImageColorSampleCounts: VkSampleCountFlags
+  sampledImageIntegerSampleCounts: VkSampleCountFlags
+  sampledImageDepthSampleCounts: VkSampleCountFlags
+  sampledImageStencilSampleCounts: VkSampleCountFlags
+  storageImageSampleCounts: VkSampleCountFlags
+  maxSampleMaskWords: uint32_t
+  timestampComputeAndGraphics: VkBool32
+  timestampPeriod: float
+  maxClipDistances: uint32_t
+  maxCullDistances: uint32_t
+  maxCombinedClipAndCullDistances: uint32_t
+  discreteQueuePriorities: uint32_t
+  pointSizeRange: float_t*2
+  lineWidthRange: float_t*2
+  pointSizeGranularity: float
+  lineWidthGranularity: float
+  strictLines: VkBool32
+  standardSampleLocations: VkBool32
+  optimalBufferCopyOffsetAlignment: VkDeviceSize
+  optimalBufferCopyRowPitchAlignment: VkDeviceSize
+  nonCoherentAtomSize: VkDeviceSize
+
+
+@dataclass
+class VkPhysicalDeviceShaderDrawParameterFeatures:
+  shaderDrawParameters: VkBool32
+
+
+@dataclass
+class VkExtensionProperties:
+  extensionName: str
+  specVersion: uint32_t
+
+
+@dataclass
+class VkFormatProperties:
+  linearTilingFeatures: VkFormatFeatureFlags
+  optimalTilingFeatures: VkFormatFeatureFlags
+  bufferFeatures: VkFormatFeatureFlags
+
+
+@dataclass
+class VkLayerProperties:
+  layerName: str
+  specVersion: uint32_t
+  implementationVersion: uint32_t
+  description: str
+
+
+@dataclass
+class VkQueueFamilyProperties:
+  queueFlags: VkQueueFlags
+  queueCount: uint32_t
+  timestampValidBits: uint32_t
+  minImageTransferGranularity: VkExtent3D
+
+
+@dataclass
+class VkPhysicalDeviceSparseProperties:
+  residencyStandard2DBlockShape: VkBool32
+  residencyStandard2DMultisampleBlockShape: VkBool32
+  residencyStandard3DBlockShape: VkBool32
+  residencyAlignedMipSize: VkBool32
+  residencyNonResidentStrict: VkBool32
+
+
+@dataclass
+class VkImageFormatProperties:
+  maxExtent: VkExtent3D
+  maxMipLevels: uint32_t
+  maxArrayLayers: uint32_t
+  sampleCounts: VkSampleCountFlags
+  maxResourceSize: VkDeviceSize
+
+
+@dataclass
+class VkPhysicalDeviceSamplerYcbcrConversionFeatures:
+  samplerYcbcrConversion: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceIDProperties:
+  deviceUUID: uint8_t*VK_UUID_SIZE
+  driverUUID: uint8_t*VK_UUID_SIZE
+  deviceLUID: uint8_t*VK_LUID_SIZE
+  deviceNodeMask: uint32_t
+  deviceLUIDValid: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceMaintenance3Properties:
+  maxPerSetDescriptors: uint32_t
+  maxMemoryAllocationSize: VkDeviceSize
+
+
+@dataclass
+class VkPhysicalDevice16BitStorageFeatures:
+  storageBuffer16BitAccess: VkBool32
+  uniformAndStorageBuffer16BitAccess: VkBool32
+  storagePushConstant16: VkBool32
+  storageInputOutput16: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceMultiviewFeatures:
+  multiview: VkBool32
+  multiviewGeometryShader: VkBool32
+  multiviewTessellationShader: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceSubgroupProperties:
+  subgroupSize: uint32_t
+  supportedStages: VkShaderStageFlags
+  supportedOperations: VkSubgroupFeatureFlags
+  quadOperationsInAllStages: VkBool32
+
+
+@dataclass
+class VkPhysicalDevicePointClippingProperties:
+  pointClippingBehavior: VkPointClippingBehavior
+
+
+@dataclass
+class VkPhysicalDeviceMultiviewProperties:
+  maxMultiviewViewCount: uint32_t
+  maxMultiviewInstanceIndex: uint32_t
+
+
+@dataclass
+class VkMemoryType:
+  propertyFlags: VkMemoryPropertyFlags
+  heapIndex: uint32_t
+
+
+@dataclass
+class VkMemoryHeap:
+  size: VkDeviceSize
+  flags: VkMemoryHeapFlags
+
+
+@dataclass
+class VkPhysicalDeviceMemoryProperties:
+  memoryTypeCount: uint32_t
+  memoryTypes: List[VkMemoryType]
+  memoryHeapCount: uint32_t
+  memoryHeaps: List[VkMemoryHeap]
+
+
+@dataclass
+class VkPhysicalDeviceProperties:
+  apiVersion: uint32_t
+  driverVersion: uint32_t
+  vendorID: uint32_t
+  deviceID: uint32_t
+  deviceType: VkPhysicalDeviceType
+  deviceName: str
+  pipelineCacheUUID: uint8_t
+  limits: VkPhysicalDeviceLimits
+  sparseProperties: VkPhysicalDeviceSparseProperties
+
+
+@dataclass
+class VkPhysicalDeviceFeatures:
+  robustBufferAccess: VkBool32
+  fullDrawIndexUint32: VkBool32
+  imageCubeArray: VkBool32
+  independentBlend: VkBool32
+  geometryShader: VkBool32
+  tessellationShader: VkBool32
+  sampleRateShading: VkBool32
+  dualSrcBlend: VkBool32
+  logicOp: VkBool32
+  multiDrawIndirect: VkBool32
+  drawIndirectFirstInstance: VkBool32
+  depthClamp: VkBool32
+  depthBiasClamp: VkBool32
+  fillModeNonSolid: VkBool32
+  depthBounds: VkBool32
+  wideLines: VkBool32
+  largePoints: VkBool32
+  alphaToOne: VkBool32
+  multiViewport: VkBool32
+  samplerAnisotropy: VkBool32
+  textureCompressionETC2: VkBool32
+  textureCompressionASTC_LDR: VkBool32
+  textureCompressionBC: VkBool32
+  occlusionQueryPrecise: VkBool32
+  pipelineStatisticsQuery: VkBool32
+  vertexPipelineStoresAndAtomics: VkBool32
+  fragmentStoresAndAtomics: VkBool32
+  shaderTessellationAndGeometryPointSize: VkBool32
+  shaderImageGatherExtended: VkBool32
+  shaderStorageImageExtendedFormats: VkBool32
+  shaderStorageImageMultisample: VkBool32
+  shaderStorageImageReadWithoutFormat: VkBool32
+  shaderStorageImageWriteWithoutFormat: VkBool32
+  shaderUniformBufferArrayDynamicIndexing: VkBool32
+  shaderSampledImageArrayDynamicIndexing: VkBool32
+  shaderStorageBufferArrayDynamicIndexing: VkBool32
+  shaderStorageImageArrayDynamicIndexing: VkBool32
+  shaderClipDistance: VkBool32
+  shaderCullDistance: VkBool32
+  shaderFloat64: VkBool32
+  shaderInt64: VkBool32
+  shaderInt16: VkBool32
+  shaderResourceResidency: VkBool32
+  shaderResourceMinLod: VkBool32
+  sparseBinding: VkBool32
+  sparseResidencyBuffer: VkBool32
+  sparseResidencyImage2D: VkBool32
+  sparseResidencyImage3D: VkBool32
+  sparseResidency2Samples: VkBool32
+  sparseResidency4Samples: VkBool32
+  sparseResidency8Samples: VkBool32
+  sparseResidency16Samples: VkBool32
+  sparseResidencyAliased: VkBool32
+  variableMultisampleRate: VkBool32
+  inheritedQueries: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceShaderFloat16Int8Features:
+  shaderFloat16: VkBool32
+  shaderInt8: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceProtectedMemoryFeatures:
+  protectedMemory: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVariablePointersFeatures:
+  variablePointersStorageBuffer: VkBool32
+  variablePointers: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceImage2DViewOf3DFeaturesEXT:
+  image2DViewOf3D: VkBool32
+  sampler2DViewOf3D: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceCustomBorderColorFeaturesEXT:
+  customBorderColors: VkBool32
+  customBorderColorWithoutFormat: VkBool32
+
+
+@dataclass
+class VkPhysicalDevicePrimitiveTopologyListRestartFeaturesEXT:
+  primitiveTopologyListRestart: VkBool32
+  primitiveTopologyPatchListRestart: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceProvokingVertexFeaturesEXT:
+  provokingVertexLast: VkBool32
+  transformFeedbackPreservesProvokingVertex: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceIndexTypeUint8Features:
+  indexTypeUint8: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVertexAttributeDivisorFeatures:
+  vertexAttributeInstanceRateDivisor: VkBool32
+  vertexAttributeInstanceRateZeroDivisor: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceTransformFeedbackFeaturesEXT:
+  transformFeedback: VkBool32
+  geometryStreams: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceShaderSubgroupUniformControlFlowFeaturesKHR:
+  shaderSubgroupUniformControlFlow: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceShaderSubgroupExtendedTypesFeatures:
+  shaderSubgroupExtendedTypes: VkBool32
+
+
+@dataclass
+class VkPhysicalDevice8BitStorageFeatures:
+  storageBuffer8BitAccess: VkBool32
+  uniformAndStorageBuffer8BitAccess: VkBool32
+  storagePushConstant8: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceShaderIntegerDotProductFeatures:
+  shaderIntegerDotProduct: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceRelaxedLineRasterizationFeaturesIMG:
+  relaxedLineRasterization: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceLineRasterizationFeatures:
+  rectangularLines: VkBool32
+  bresenhamLines: VkBool32
+  smoothLines: VkBool32
+  stippledRectangularLines: VkBool32
+  stippledBresenhamLines: VkBool32
+  stippledSmoothLines: VkBool32
+
+
+@dataclass
+class VkPhysicalDevicePrimitivesGeneratedQueryFeaturesEXT:
+  primitivesGeneratedQuery: VkBool32
+  primitivesGeneratedQueryWithRasterizerDiscard: VkBool32
+  primitivesGeneratedQueryWithNonZeroStreams: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceFloatControlsProperties:
+  denormBehaviorIndependence : VkShaderFloatControlsIndependence
+  roundingModeIndependence : VkShaderFloatControlsIndependence
+  shaderSignedZeroInfNanPreserveFloat16 : VkBool32
+  shaderSignedZeroInfNanPreserveFloat32 : VkBool32
+  shaderSignedZeroInfNanPreserveFloat64 : VkBool32
+  shaderDenormPreserveFloat16 : VkBool32
+  shaderDenormPreserveFloat32 : VkBool32
+  shaderDenormPreserveFloat64 : VkBool32
+  shaderDenormFlushToZeroFloat16 : VkBool32
+  shaderDenormFlushToZeroFloat32 : VkBool32
+  shaderDenormFlushToZeroFloat64 : VkBool32
+  shaderRoundingModeRTEFloat16 : VkBool32
+  shaderRoundingModeRTEFloat32 : VkBool32
+  shaderRoundingModeRTEFloat64 :VkBool32
+  shaderRoundingModeRTZFloat16 : VkBool32
+  shaderRoundingModeRTZFloat32 : VkBool32
+  shaderRoundingModeRTZFloat64 : VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVulkan11Properties:
+  deviceUUID : uint8_t*VK_UUID_SIZE
+  driverUUID : uint8_t*VK_UUID_SIZE
+  deviceLUID : uint8_t*VK_LUID_SIZE
+  deviceNodeMask : uint32_t
+  deviceLUIDValid : VkBool32
+  subgroupSize : uint32_t
+  subgroupSupportedStages : VkShaderStageFlags
+  subgroupSupportedOperations : VkSubgroupFeatureFlags
+  subgroupQuadOperationsInAllStages : VkBool32
+  pointClippingBehavior : VkPointClippingBehavior
+  maxMultiviewViewCount : uint32_t
+  maxMultiviewInstanceIndex :uint32_t
+  protectedNoFault : VkBool32
+  maxPerSetDescriptors : uint32_t
+  maxMemoryAllocationSize : VkDeviceSize
+
+
+@dataclass
+class VkPhysicalDeviceVulkan11Features:
+  storageBuffer16BitAccess: VkBool32
+  uniformAndStorageBuffer16BitAccess: VkBool32
+  storagePushConstant16: VkBool32
+  storageInputOutput16: VkBool32
+  multiview: VkBool32
+  multiviewGeometryShader: VkBool32
+  multiviewTessellationShader: VkBool32
+  variablePointersStorageBuffer: VkBool32
+  variablePointers: VkBool32
+  protectedMemory: VkBool32
+  samplerYcbcrConversion: VkBool32
+  shaderDrawParameters: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVulkan12Properties:
+  driverID: VkDriverId
+  driverName: str
+  driverInfo: str
+  conformanceVersion: ConformanceVersion
+  denormBehaviorIndependence: VkShaderFloatControlsIndependence
+  roundingModeIndependence: VkShaderFloatControlsIndependence
+  shaderSignedZeroInfNanPreserveFloat16: VkBool32
+  shaderSignedZeroInfNanPreserveFloat32: VkBool32
+  shaderSignedZeroInfNanPreserveFloat64: VkBool32
+  shaderDenormPreserveFloat16: VkBool32
+  shaderDenormPreserveFloat32: VkBool32
+  shaderDenormPreserveFloat64: VkBool32
+  shaderDenormFlushToZeroFloat16: VkBool32
+  shaderDenormFlushToZeroFloat32: VkBool32
+  shaderDenormFlushToZeroFloat64: VkBool32
+  shaderRoundingModeRTEFloat16: VkBool32
+  shaderRoundingModeRTEFloat32: VkBool32
+  shaderRoundingModeRTEFloat64: VkBool32
+  shaderRoundingModeRTZFloat16: VkBool32
+  shaderRoundingModeRTZFloat32: VkBool32
+  shaderRoundingModeRTZFloat64: VkBool32
+  maxUpdateAfterBindDescriptorsInAllPools: uint32_t
+  shaderUniformBufferArrayNonUniformIndexingNative: VkBool32
+  shaderSampledImageArrayNonUniformIndexingNative: VkBool32
+  shaderStorageBufferArrayNonUniformIndexingNative: VkBool32
+  shaderStorageImageArrayNonUniformIndexingNative: VkBool32
+  shaderInputAttachmentArrayNonUniformIndexingNative: VkBool32
+  robustBufferAccessUpdateAfterBind: VkBool32
+  quadDivergentImplicitLod: VkBool32
+  maxPerStageDescriptorUpdateAfterBindSamplers: uint32_t
+  maxPerStageDescriptorUpdateAfterBindUniformBuffers: uint32_t
+  maxPerStageDescriptorUpdateAfterBindStorageBuffers: uint32_t
+  maxPerStageDescriptorUpdateAfterBindSampledImages: uint32_t
+  maxPerStageDescriptorUpdateAfterBindStorageImages: uint32_t
+  maxPerStageDescriptorUpdateAfterBindInputAttachments: uint32_t
+  maxPerStageUpdateAfterBindResources: uint32_t
+  maxDescriptorSetUpdateAfterBindSamplers: uint32_t
+  maxDescriptorSetUpdateAfterBindUniformBuffers: uint32_t
+  maxDescriptorSetUpdateAfterBindUniformBuffersDynamic: uint32_t
+  maxDescriptorSetUpdateAfterBindStorageBuffers: uint32_t
+  maxDescriptorSetUpdateAfterBindStorageBuffersDynamic: uint32_t
+  maxDescriptorSetUpdateAfterBindSampledImages: uint32_t
+  maxDescriptorSetUpdateAfterBindStorageImages: uint32_t
+  maxDescriptorSetUpdateAfterBindInputAttachments: uint32_t
+  supportedDepthResolveModes: VkResolveModeFlags
+  supportedStencilResolveModes: VkResolveModeFlags
+  independentResolveNone: VkBool32
+  independentResolve: VkBool32
+  filterMinmaxSingleComponentFormats: VkBool32
+  filterMinmaxImageComponentMapping: VkBool32
+  maxTimelineSemaphoreValueDifference: uint64_t
+  framebufferIntegerColorSampleCounts: VkSampleCountFlags
+
+
+@dataclass
+class VkPhysicalDeviceVulkan12Features:
+  samplerMirrorClampToEdge: VkBool32
+  drawIndirectCount: VkBool32
+  storageBuffer8BitAccess: VkBool32
+  uniformAndStorageBuffer8BitAccess: VkBool32
+  storagePushConstant8: VkBool32
+  shaderBufferInt64Atomics: VkBool32
+  shaderSharedInt64Atomics: VkBool32
+  shaderFloat16: VkBool32
+  shaderInt8: VkBool32
+  descriptorIndexing: VkBool32
+  shaderInputAttachmentArrayDynamicIndexing: VkBool32
+  shaderUniformTexelBufferArrayDynamicIndexing: VkBool32
+  shaderStorageTexelBufferArrayDynamicIndexing: VkBool32
+  shaderUniformBufferArrayNonUniformIndexing: VkBool32
+  shaderSampledImageArrayNonUniformIndexing: VkBool32
+  shaderStorageBufferArrayNonUniformIndexing: VkBool32
+  shaderStorageImageArrayNonUniformIndexing: VkBool32
+  shaderInputAttachmentArrayNonUniformIndexing: VkBool32
+  shaderUniformTexelBufferArrayNonUniformIndexing: VkBool32
+  shaderStorageTexelBufferArrayNonUniformIndexing: VkBool32
+  descriptorBindingUniformBufferUpdateAfterBind: VkBool32
+  descriptorBindingSampledImageUpdateAfterBind: VkBool32
+  descriptorBindingStorageImageUpdateAfterBind: VkBool32
+  descriptorBindingStorageBufferUpdateAfterBind: VkBool32
+  descriptorBindingUniformTexelBufferUpdateAfterBind: VkBool32
+  descriptorBindingStorageTexelBufferUpdateAfterBind: VkBool32
+  descriptorBindingUpdateUnusedWhilePending: VkBool32
+  descriptorBindingPartiallyBound: VkBool32
+  descriptorBindingVariableDescriptorCount: VkBool32
+  runtimeDescriptorArray: VkBool32
+  samplerFilterMinmax: VkBool32
+  scalarBlockLayout: VkBool32
+  imagelessFramebuffer: VkBool32
+  uniformBufferStandardLayout: VkBool32
+  shaderSubgroupExtendedTypes: VkBool32
+  separateDepthStencilLayouts: VkBool32
+  hostQueryReset: VkBool32
+  timelineSemaphore: VkBool32
+  bufferDeviceAddress: VkBool32
+  bufferDeviceAddressCaptureReplay: VkBool32
+  bufferDeviceAddressMultiDevice: VkBool32
+  vulkanMemoryModel: VkBool32
+  vulkanMemoryModelDeviceScope: VkBool32
+  vulkanMemoryModelAvailabilityVisibilityChains: VkBool32
+  shaderOutputViewportIndex: VkBool32
+  shaderOutputLayer: VkBool32
+  subgroupBroadcastDynamicId: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVulkan13Properties:
+  minSubgroupSize: uint32_t
+  maxSubgroupSize: uint32_t
+  maxComputeWorkgroupSubgroups: uint32_t
+  requiredSubgroupSizeStages: VkShaderStageFlags
+  maxInlineUniformBlockSize: uint32_t
+  maxPerStageDescriptorInlineUniformBlocks: uint32_t
+  maxPerStageDescriptorUpdateAfterBindInlineUniformBlocks: uint32_t
+  maxDescriptorSetInlineUniformBlocks: uint32_t
+  maxDescriptorSetUpdateAfterBindInlineUniformBlocks: uint32_t
+  maxInlineUniformTotalSize: uint32_t
+  integerDotProduct8BitUnsignedAccelerated: VkBool32
+  integerDotProduct8BitSignedAccelerated: VkBool32
+  integerDotProduct8BitMixedSignednessAccelerated: VkBool32
+  integerDotProduct4x8BitPackedUnsignedAccelerated: VkBool32
+  integerDotProduct4x8BitPackedSignedAccelerated: VkBool32
+  integerDotProduct4x8BitPackedMixedSignednessAccelerated: VkBool32
+  integerDotProduct16BitUnsignedAccelerated: VkBool32
+  integerDotProduct16BitSignedAccelerated: VkBool32
+  integerDotProduct16BitMixedSignednessAccelerated: VkBool32
+  integerDotProduct32BitUnsignedAccelerated: VkBool32
+  integerDotProduct32BitSignedAccelerated: VkBool32
+  integerDotProduct32BitMixedSignednessAccelerated: VkBool32
+  integerDotProduct64BitUnsignedAccelerated: VkBool32
+  integerDotProduct64BitSignedAccelerated: VkBool32
+  integerDotProduct64BitMixedSignednessAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating8BitUnsignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating8BitSignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating8BitMixedSignednessAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating4x8BitPackedUnsignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating4x8BitPackedSignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating4x8BitPackedMixedSignednessAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating16BitUnsignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating16BitSignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating16BitMixedSignednessAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating32BitUnsignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating32BitSignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating32BitMixedSignednessAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating64BitUnsignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating64BitSignedAccelerated: VkBool32
+  integerDotProductAccumulatingSaturating64BitMixedSignednessAccelerated: VkBool32
+  storageTexelBufferOffsetAlignmentBytes: VkDeviceSize
+  storageTexelBufferOffsetSingleTexelAlignment: VkBool32
+  uniformTexelBufferOffsetAlignmentBytes: VkDeviceSize
+  uniformTexelBufferOffsetSingleTexelAlignment: VkBool32
+  maxBufferSize: VkDeviceSize
+
+
+@dataclass
+class VkPhysicalDeviceVulkan13Features:
+  robustImageAccess: VkBool32
+  inlineUniformBlock: VkBool32
+  descriptorBindingInlineUniformBlockUpdateAfterBind: VkBool32
+  pipelineCreationCacheControl: VkBool32
+  privateData: VkBool32
+  shaderDemoteToHelperInvocation: VkBool32
+  shaderTerminateInvocation: VkBool32
+  subgroupSizeControl: VkBool32
+  computeFullSubgroups: VkBool32
+  synchronization2: VkBool32
+  textureCompressionASTC_HDR: VkBool32
+  shaderZeroInitializeWorkgroupMemory: VkBool32
+  dynamicRendering: VkBool32
+  shaderIntegerDotProduct: VkBool32
+  maintenance4: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVulkan14Properties:
+  lineSubPixelPrecisionBits: uint32_t
+  maxVertexAttribDivisor: uint32_t
+  supportsNonZeroFirstInstance: VkBool32
+  maxPushDescriptors: uint32_t
+  dynamicRenderingLocalReadDepthStencilAttachments: VkBool32
+  dynamicRenderingLocalReadMultisampledAttachments: VkBool32
+  earlyFragmentMultisampleCoverageAfterSampleCounting: VkBool32
+  earlyFragmentSampleMaskTestBeforeSampleCounting: VkBool32
+  depthStencilSwizzleOneSupport: VkBool32
+  polygonModePointSize: VkBool32
+  nonStrictSinglePixelWideLinesUseParallelogram: VkBool32
+  nonStrictWideLinesUseParallelogram: VkBool32
+  blockTexelViewCompatibleMultipleLayers: VkBool32
+  maxCombinedImageSamplerDescriptorCount: uint32_t
+  fragmentShadingRateClampCombinerInputs: VkBool32
+  defaultRobustnessStorageBuffers: VkPipelineRobustnessBufferBehavior
+  defaultRobustnessUniformBuffers: VkPipelineRobustnessBufferBehavior
+  defaultRobustnessVertexInputs: VkPipelineRobustnessBufferBehavior
+  defaultRobustnessImages: VkPipelineRobustnessBufferBehavior
+  copySrcLayoutCount: uint32_t
+  pCopySrcLayouts: List[VkImageLayout]
+  copyDstLayoutCount: uint32_t
+  pCopyDstLayouts: List[VkImageLayout]
+  optimalTilingLayoutUUID: uint8_t
+  identicalMemoryTypeRequirements: VkBool32
+
+
+@dataclass
+class VkPhysicalDeviceVulkan14Features:
+  globalPriorityQuery: VkBool32
+  shaderSubgroupRotate: VkBool32
+  shaderSubgroupRotateClustered: VkBool32
+  shaderFloatControls2: VkBool32
+  shaderExpectAssume: VkBool32
+  rectangularLines: VkBool32
+  bresenhamLines: VkBool32
+  smoothLines: VkBool32
+  stippledRectangularLines: VkBool32
+  stippledBresenhamLines: VkBool32
+  stippledSmoothLines: VkBool32
+  vertexAttributeInstanceRateDivisor: VkBool32
+  vertexAttributeInstanceRateZeroDivisor: VkBool32
+  indexTypeUint8: VkBool32
+  dynamicRenderingLocalRead: VkBool32
+  maintenance5: VkBool32
+  maintenance6: VkBool32
+  pipelineProtectedAccess: VkBool32
+  pipelineRobustness: VkBool32
+  hostImageCopy: VkBool32
+  # pushDescriptor: bool
+
+
+@dataclass
+class VkPhysicalDeviceDriverProperties:
+  driverID: VkDriverId
+  driverName: str
+  driverInfo: str
+  conformanceVersion: ConformanceVersion
+
+# Defining alias for structures
+VkPhysicalDeviceLineRasterizationFeaturesEXT = VkPhysicalDeviceLineRasterizationFeatures
+VkPhysicalDeviceLineRasterizationFeaturesKHR = VkPhysicalDeviceLineRasterizationFeatures
+VkPhysicalDeviceShaderIntegerDotProductFeaturesKHR = VkPhysicalDeviceShaderIntegerDotProductFeatures
+VkPhysicalDevice8BitStorageFeaturesKHR = VkPhysicalDevice8BitStorageFeatures
+VkPhysicalDeviceShaderSubgroupExtendedTypesFeaturesKHR = VkPhysicalDeviceShaderSubgroupExtendedTypesFeatures
+VkPhysicalDeviceVertexAttributeDivisorFeaturesKHR = VkPhysicalDeviceVertexAttributeDivisorFeatures
+VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT = VkPhysicalDeviceVertexAttributeDivisorFeatures
+VkPhysicalDeviceIndexTypeUint8FeaturesKHR = VkPhysicalDeviceIndexTypeUint8Features
+VkPhysicalDeviceIndexTypeUint8FeaturesEXT = VkPhysicalDeviceIndexTypeUint8Features
+VkPhysicalDeviceVariablePointerFeatures = VkPhysicalDeviceVariablePointersFeatures
+VkPhysicalDeviceVariablePointersFeaturesKHR = VkPhysicalDeviceVariablePointersFeatures
+VkPhysicalDeviceVariablePointerFeaturesKHR = VkPhysicalDeviceVariablePointersFeatures
+VkPhysicalDeviceFloat16Int8FeaturesKHR = VkPhysicalDeviceShaderFloat16Int8Features
+VkPhysicalDeviceShaderFloat16Int8FeaturesKHR = VkPhysicalDeviceShaderFloat16Int8Features
+VkPhysicalDeviceFloatControlsPropertiesKHR = VkPhysicalDeviceFloatControlsProperties
+VkPhysicalDeviceShaderDrawParametersFeatures = VkPhysicalDeviceShaderDrawParameterFeatures
+VkPhysicalDeviceDriverPropertiesKHR = VkPhysicalDeviceDriverProperties
+
+# Defining dependency of structures on extensions
+VULKAN_EXTENSIONS_AND_STRUCTS_MAPPING = {
+  "extensions": {
+    "VK_KHR_variable_pointers": [
+      { "VkPhysicalDeviceVariablePointerFeaturesKHR": "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES" },
+      { "VkPhysicalDeviceVariablePointersFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES"},
+    ],
+    "VK_KHR_shader_float16_int8": [
+      { "VkPhysicalDeviceShaderFloat16Int8FeaturesKHR": "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES" },
+      {"VkPhysicalDeviceFloat16Int8FeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES"},
+    ],
+    "VK_EXT_image_2d_view_of_3d" : [
+      {"VkPhysicalDeviceImage2DViewOf3DFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_2D_VIEW_OF_3D_FEATURES_EXT"},
+    ],
+    "VK_EXT_custom_border_color" : [
+      {"VkPhysicalDeviceCustomBorderColorFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_CUSTOM_BORDER_COLOR_PROPERTIES_EXT"},
+    ],
+    "VK_EXT_primitive_topology_list_restart": [
+      {"VkPhysicalDevicePrimitiveTopologyListRestartFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PRIMITIVE_TOPOLOGY_LIST_RESTART_FEATURES_EXT"},
+    ],
+    "VK_EXT_provoking_vertex" : [
+      {"VkPhysicalDeviceProvokingVertexFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROVOKING_VERTEX_FEATURES_EXT"},
+    ],
+    "VK_KHR_index_type_uint8" : [
+      {"VkPhysicalDeviceIndexTypeUint8FeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INDEX_TYPE_UINT8_FEATURES"},
+    ],
+    "VK_EXT_index_type_uint8"  : [
+      {"VkPhysicalDeviceIndexTypeUint8FeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INDEX_TYPE_UINT8_FEATURES"},
+    ],
+    "VK_KHR_vertex_attribute_divisor" : [
+      {"VkPhysicalDeviceVertexAttributeDivisorFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_FEATURES"},
+    ],
+    "VK_EXT_vertex_attribute_divisor" : [
+      {"VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_FEATURES"},
+    ],
+    "VK_EXT_transform_feedback" : [
+      {"VkPhysicalDeviceTransformFeedbackFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TRANSFORM_FEEDBACK_FEATURES_EXT"},
+    ],
+    "VK_KHR_shader_subgroup_uniform_control_flow" : [
+      {"VkPhysicalDeviceShaderSubgroupUniformControlFlowFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_UNIFORM_CONTROL_FLOW_FEATURES_KHR"},
+    ],
+    "VK_KHR_shader_subgroup_extended_types" : [
+      {"VkPhysicalDeviceShaderSubgroupExtendedTypesFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_EXTENDED_TYPES_FEATURES"},
+    ],
+    "VK_KHR_8bit_storage" : [
+      {"VkPhysicalDevice8BitStorageFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES"},
+    ],
+    "VK_KHR_shader_integer_dot_product" : [
+      {"VkPhysicalDeviceShaderIntegerDotProductFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_DOT_PRODUCT_FEATURES"},
+    ],
+    "VK_IMG_relaxed_line_rasterization" : [
+      {"VkPhysicalDeviceRelaxedLineRasterizationFeaturesIMG" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_RELAXED_LINE_RASTERIZATION_FEATURES_IMG"},
+    ],
+    "VK_KHR_line_rasterization" : [
+      {"VkPhysicalDeviceLineRasterizationFeaturesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LINE_RASTERIZATION_FEATURES"},
+    ],
+    "VK_EXT_line_rasterization" : [
+      {"VkPhysicalDeviceLineRasterizationFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LINE_RASTERIZATION_FEATURES"},
+    ],
+    "VK_EXT_primitives_generated_query" : [
+      {"VkPhysicalDevicePrimitivesGeneratedQueryFeaturesEXT" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PRIMITIVES_GENERATED_QUERY_FEATURES_EXT"},
+    ],
+    "VK_KHR_shader_float_controls" : [
+      {"VkPhysicalDeviceFloatControlsPropertiesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FLOAT_CONTROLS_PROPERTIES"},
+    ],
+    "VK_KHR_driver_properties" : [
+      {"VkPhysicalDeviceDriverPropertiesKHR" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DRIVER_PROPERTIES"},
+    ]
+  }
+}
+
+# Defining dependency of structures on vulkan cores
+VULKAN_CORES_AND_STRUCTS_MAPPING = {
+  "versions" : {
+    "Core11" : [
+      {"VkPhysicalDeviceVulkan11Properties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_PROPERTIES"},
+      {"VkPhysicalDeviceVulkan11Features" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES"},
+    ],
+    "Core12" : [
+      {"VkPhysicalDeviceVulkan12Properties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_PROPERTIES"},
+      {"VkPhysicalDeviceVulkan12Features" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES"},
+    ],
+    "Core13" : [
+      {"VkPhysicalDeviceVulkan13Properties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_PROPERTIES"},
+      {"VkPhysicalDeviceVulkan13Features" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES"},
+    ],
+    "Core14" : [
+      {"VkPhysicalDeviceVulkan14Properties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_4_PROPERTIES"},
+      {"VkPhysicalDeviceVulkan14Features" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_4_FEATURES"},
+    ]
+  }
+}
+
+# Defining map for list type members mapped to its size
+LIST_TYPE_FIELD_AND_SIZE_MAPPING = {
+  "pCopySrcLayouts": "copySrcLayoutCount",
+  "pCopyDstLayouts": "copyDstLayoutCount",
+  "memoryTypes": "memoryTypeCount",
+  "memoryHeaps": "memoryHeapCount",
+}
+
+# Defining dependency of structures on vulkan api version
+VULKAN_VERSIONS_AND_STRUCTS_MAPPING = {
+  "VK_VERSION_1_0" : [
+    {"VkPhysicalDeviceProperties" : "" },
+    {"VkPhysicalDeviceFeatures" : ""},
+    {"VkPhysicalDeviceMemoryProperties" : ""},
+  ],
+  "VK_VERSION_1_1" : [
+    {"VkPhysicalDeviceSubgroupProperties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_PROPERTIES"},
+    {"VkPhysicalDevicePointClippingProperties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_POINT_CLIPPING_PROPERTIES"},
+    {"VkPhysicalDeviceMultiviewProperties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES"},
+    {"VkPhysicalDeviceIDProperties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES"},
+    {"VkPhysicalDeviceMaintenance3Properties" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES"},
+    {"VkPhysicalDeviceMultiviewFeatures" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES"},
+    {"VkPhysicalDeviceVariablePointersFeatures" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTERS_FEATURES"},
+    {"VkPhysicalDeviceProtectedMemoryFeatures" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES"},
+    {"VkPhysicalDeviceSamplerYcbcrConversionFeatures" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES"},
+    {"VkPhysicalDeviceShaderDrawParameterFeatures" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETERS_FEATURES"},
+    {"VkPhysicalDevice16BitStorageFeatures" : "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES"},
+  ]
+}
+
+# List of structures that are not dependent on extensions
+EXTENSION_INDEPENDENT_STRUCTS = [
+  VkPhysicalDeviceProperties,
+  VkPhysicalDeviceFeatures,
+  VkPhysicalDeviceMemoryProperties,
+  VkPhysicalDeviceSubgroupProperties,
+  VkPhysicalDevicePointClippingProperties,
+  VkPhysicalDeviceMultiviewProperties,
+  VkPhysicalDeviceIDProperties,
+  VkPhysicalDeviceMaintenance3Properties,
+  VkPhysicalDevice16BitStorageFeatures,
+  VkPhysicalDeviceMultiviewFeatures,
+  VkPhysicalDeviceVariablePointersFeatures,
+  VkPhysicalDeviceProtectedMemoryFeatures,
+  VkPhysicalDeviceSamplerYcbcrConversionFeatures,
+  VkPhysicalDeviceShaderDrawParameterFeatures,
+]
+
+# List of all the structures for vkjson
+ALL_STRUCTS = [
+  VkPhysicalDeviceFloatControlsPropertiesKHR,
+  VkPhysicalDeviceProperties,
+  VkPhysicalDeviceMemoryProperties,
+  VkPhysicalDeviceSubgroupProperties,
+  VkPhysicalDevicePointClippingProperties,
+  VkPhysicalDeviceMultiviewProperties,
+  VkPhysicalDeviceIDProperties,
+  VkPhysicalDeviceMaintenance3Properties,
+  VkPhysicalDeviceSparseProperties,
+  VkImageFormatProperties,
+  VkQueueFamilyProperties,
+  VkExtensionProperties,
+  VkLayerProperties,
+  VkFormatProperties,
+  VkPhysicalDeviceVariablePointerFeaturesKHR,
+  VkPhysicalDeviceVariablePointersFeaturesKHR,
+  VkPhysicalDeviceShaderFloat16Int8FeaturesKHR,
+  VkPhysicalDeviceFloat16Int8FeaturesKHR,
+  VkPhysicalDeviceImage2DViewOf3DFeaturesEXT,
+  VkPhysicalDeviceCustomBorderColorFeaturesEXT,
+  VkPhysicalDevicePrimitiveTopologyListRestartFeaturesEXT,
+  VkPhysicalDeviceProvokingVertexFeaturesEXT,
+  VkPhysicalDeviceIndexTypeUint8FeaturesKHR,
+  VkPhysicalDeviceIndexTypeUint8FeaturesEXT,
+  VkPhysicalDeviceVertexAttributeDivisorFeaturesKHR,
+  VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT,
+  VkPhysicalDeviceTransformFeedbackFeaturesEXT,
+  VkPhysicalDeviceShaderSubgroupUniformControlFlowFeaturesKHR,
+  VkPhysicalDeviceShaderSubgroupExtendedTypesFeaturesKHR,
+  VkPhysicalDevice8BitStorageFeaturesKHR,
+  VkPhysicalDeviceShaderIntegerDotProductFeaturesKHR,
+  VkPhysicalDeviceRelaxedLineRasterizationFeaturesIMG,
+  VkPhysicalDeviceLineRasterizationFeaturesKHR,
+  VkPhysicalDeviceLineRasterizationFeaturesEXT,
+  VkPhysicalDevicePrimitivesGeneratedQueryFeaturesEXT,
+  VkPhysicalDevice16BitStorageFeatures,
+  VkPhysicalDeviceMultiviewFeatures,
+  VkPhysicalDeviceProtectedMemoryFeatures,
+  VkPhysicalDeviceSamplerYcbcrConversionFeatures,
+  VkPhysicalDeviceShaderDrawParameterFeatures,
+  VkPhysicalDeviceLimits,
+  VkPhysicalDeviceFeatures,
+  VkPhysicalDeviceVulkan11Properties,
+  VkPhysicalDeviceVulkan11Features,
+  VkPhysicalDeviceVulkan12Properties,
+  VkPhysicalDeviceVulkan12Features,
+  VkPhysicalDeviceVulkan13Properties,
+  VkPhysicalDeviceVulkan13Features,
+  VkPhysicalDeviceVulkan14Properties,
+  VkPhysicalDeviceVulkan14Features,
+  VkPhysicalDeviceDriverProperties,
+]
diff --git a/vulkan/scripts/vkjson_generator.py b/vulkan/scripts/vkjson_generator.py
new file mode 100644
index 0000000..7dc55d9
--- /dev/null
+++ b/vulkan/scripts/vkjson_generator.py
@@ -0,0 +1,1882 @@
+#!/usr/bin/env python3
+#
+# Copyright 2025 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Generates the vkjson files.
+"""
+import dataclasses
+import os
+import re
+from typing import get_origin
+
+import generator_common as gencom
+import vk as VK
+
+dataclass_field = dataclasses.field
+
+
+COPYRIGHT_WARNINGS = """///////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2015-2016 The Khronos Group Inc.
+// Copyright (c) 2015-2016 Valve Corporation
+// Copyright (c) 2015-2016 LunarG, Inc.
+// Copyright (c) 2015-2016 Google, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+///////////////////////////////////////////////////////////////////////////////
+"""
+
+
+def get_copyright_warnings():
+  return COPYRIGHT_WARNINGS
+
+
+def get_vkjson_struct_name(extension_name):
+  """Gets the corresponding structure name from a Vulkan extension name.
+  Example: "VK_KHR_shader_float16_int8" → "VkJsonKHRShaderFloat16Int8"
+  """
+  prefix_map = {
+    "VK_KHR": "VkJsonKHR",
+    "VK_EXT": "VkJsonExt",
+    "VK_IMG": "VkJsonIMG"
+  }
+
+  for prefix, replacement in prefix_map.items():
+    if extension_name.startswith(prefix):
+      struct_name = replacement + extension_name[len(prefix):]
+      break
+  else:
+    struct_name = f"VkJsonExt{extension_name}"
+
+  # Convert underscores to camel case
+  # Example: "VK_KHR_shader_float16_int8" → "VkJsonKHRShaderFloat16Int8"
+  struct_name = re.sub(r"_(.)", lambda m: m.group(1).upper(), struct_name)
+
+  return struct_name
+
+
+def get_vkjson_struct_variable_name(extension_name):
+  """Gets corresponding instance name from a Vulkan extension name.
+  Example: "VK_KHR_shader_float16_int8" → "khr_shader_float16_int8"
+  """
+  prefix_map = {
+    "VK_KHR_": "khr_",
+    "VK_EXT_": "ext_",
+    "VK_IMG_": "img_"
+  }
+
+  for prefix, replacement in prefix_map.items():
+    if extension_name.startswith(prefix):
+      return replacement + extension_name[len(prefix):]
+
+  return extension_name.lower()  # Default case if no known prefix matches
+
+
+def get_struct_name(struct_name):
+  """Gets corresponding instance name
+  Example: "VkPhysicalDeviceShaderFloat16Int8FeaturesKHR" → "shader_float16_int8_features_khr"
+  """
+  # Remove "VkPhysicalDevice" prefix and any of the known suffixes
+  base_name = struct_name.removeprefix("VkPhysicalDevice").removesuffix("KHR").removesuffix("EXT").removesuffix("IMG")
+
+  # Convert CamelCase to snake_case
+  # Example: "ShaderFloat16Int8Features" → "shader_float16_int8_features"
+  variable_name = re.sub(r"(?<!^)(?=[A-Z])", "_", base_name).lower()
+
+  # Fix special cases
+  variable_name = variable_name.replace("2_d_", "_2d_").replace("3_d_", "_3d_")
+
+  # Add back the correct suffix if it was removed
+  suffix_map = {"KHR": "_khr", "EXT": "_ext", "IMG": "_img"}
+  for suffix, replacement in suffix_map.items():
+    if struct_name.endswith(suffix):
+      variable_name += replacement
+      break
+
+  # Handle specific exceptions
+  special_cases = {
+    "8_bit_storage_features_khr": "bit8_storage_features_khr",
+    "memory_properties": "memory",
+    "16_bit_storage_features": "bit16_storage_features",
+    "i_d_properties": "id_properties"
+  }
+
+  return special_cases.get(variable_name, variable_name)
+
+
+def generate_extension_struct_definition(f):
+  """Generates struct definition code for extension based structs
+  Example:
+  struct VkJsonKHRShaderFloatControls {
+    VkJsonKHRShaderFloatControls() {
+      reported = false;
+      memset(&float_controls_properties_khr, 0,
+            sizeof(VkPhysicalDeviceFloatControlsPropertiesKHR));
+    }
+    bool reported;
+    VkPhysicalDeviceFloatControlsPropertiesKHR float_controls_properties_khr;
+  };
+  """
+  vkJson_entries = []
+
+  for extension_name, struct_list in VK.VULKAN_EXTENSIONS_AND_STRUCTS_MAPPING["extensions"].items():
+    vkjson_struct_name = get_vkjson_struct_name(extension_name)
+    vkjson_struct_variable_name = get_vkjson_struct_variable_name(extension_name)
+    vkJson_entries.append(f"{vkjson_struct_name} {vkjson_struct_variable_name}")
+
+    struct_entries = []
+
+    f.write(f"struct {vkjson_struct_name} {{\n")
+    f.write(f"  {vkjson_struct_name}() {{\n")
+    f.write("    reported = false;\n")
+
+    for struct_map in struct_list:
+      for struct_name, _ in struct_map.items():
+        variable_name = get_struct_name(struct_name)
+        f.write(f"    memset(&{variable_name}, 0, sizeof({struct_name}));\n")
+        struct_entries.append(f"{struct_name} {variable_name}")
+
+    f.write("  }\n")  # End of constructor
+    f.write("  bool reported;\n")
+
+    for entry in struct_entries:
+      f.write(f"  {entry};\n")
+
+    f.write("};\n\n")  # End of struct
+
+  return vkJson_entries
+
+
+def generate_vk_core_struct_definition(f):
+  """Generates struct definition code for vulkan cores
+  Example:
+  struct VkJsonCore11 {
+    VkPhysicalDeviceVulkan11Properties properties;
+    VkPhysicalDeviceVulkan11Features features;
+  };
+  """
+  vkJson_core_entries = []
+
+  for version, items in VK.VULKAN_CORES_AND_STRUCTS_MAPPING["versions"].items():
+    struct_name = f"VkJson{version}"
+    vkJson_core_entries.append(f"{struct_name} {version.lower()}")
+
+    f.write(f"struct {struct_name} {{\n")
+
+    for item in items:
+      for struct_type, _ in item.items():
+        field_name = "properties" if "Properties" in struct_type else "features"
+        f.write(f"  {struct_type} {field_name};\n")
+
+    f.write("};\n\n")
+
+  return vkJson_core_entries
+
+
+def generate_memset_statements(f):
+  """Generates memset statements for all independent Vulkan structs and core Vulkan versions.
+  This initializes struct instances to zero before use.
+
+  Example:
+    memset(&properties, 0, sizeof(VkPhysicalDeviceProperties));
+    VkPhysicalDeviceProperties properties;
+  """
+  entries = []
+
+  # Process independent structs
+  for dataclass_type in VK.EXTENSION_INDEPENDENT_STRUCTS:
+    class_name = dataclass_type.__name__
+    variable_name = get_struct_name(class_name)
+    f.write(f"memset(&{variable_name}, 0, sizeof({class_name}));\n")
+    entries.append(f"{class_name} {variable_name}")
+
+  # Process vulkan core structs
+  for version in VK.VULKAN_CORES_AND_STRUCTS_MAPPING["versions"]:
+    struct_name = f"VkJson{version}"
+    f.write(f"memset(&{version.lower()}, 0, sizeof({struct_name}));\n")
+
+  return entries
+
+
+def gen_h():
+  """Generates vkjson.h file.
+  """
+  genfile = os.path.join(os.path.dirname(__file__),
+                         "..", "vkjson", "vkjson.h")
+
+  with open(genfile, "w") as f:
+    f.write(f'{get_copyright_warnings()}\n')
+
+    f.write("""\
+#ifndef VKJSON_H_
+#define VKJSON_H_
+
+#include <string.h>
+#include <vulkan/vulkan.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+#ifdef WIN32
+#undef min
+#undef max
+#endif
+
+/*
+ * This file is autogenerated by vkjson_generator.py. Do not edit directly.
+ */
+struct VkJsonLayer {
+  VkLayerProperties properties;
+  std::vector<VkExtensionProperties> extensions;
+};
+
+\n""")
+
+    vkjson_extension_structs = generate_extension_struct_definition(f)
+    vkjson_core_structs = generate_vk_core_struct_definition(f)
+
+    f.write("""\
+struct VkJsonDevice {
+  VkJsonDevice() {""")
+
+    feature_property_structs = generate_memset_statements(f)
+
+    f.write("""\
+  }\n""")
+    for struct_entries in (vkjson_extension_structs, vkjson_core_structs, feature_property_structs):
+      for entry in struct_entries:
+        f.write(entry + ";\n")
+
+    f.write("""\
+  std::vector<VkQueueFamilyProperties> queues;
+  std::vector<VkExtensionProperties> extensions;
+  std::vector<VkLayerProperties> layers;
+  std::map<VkFormat, VkFormatProperties> formats;
+  std::map<VkExternalFenceHandleTypeFlagBits, VkExternalFenceProperties>
+      external_fence_properties;
+  std::map<VkExternalSemaphoreHandleTypeFlagBits, VkExternalSemaphoreProperties>
+      external_semaphore_properties;
+};
+
+struct VkJsonDeviceGroup {
+  VkJsonDeviceGroup() {
+    memset(&properties, 0, sizeof(VkPhysicalDeviceGroupProperties));
+  }
+  VkPhysicalDeviceGroupProperties properties;
+  std::vector<uint32_t> device_inds;
+};
+
+struct VkJsonInstance {
+  VkJsonInstance() : api_version(0) {}
+  uint32_t api_version;
+  std::vector<VkJsonLayer> layers;
+  std::vector<VkExtensionProperties> extensions;
+  std::vector<VkJsonDevice> devices;
+  std::vector<VkJsonDeviceGroup> device_groups;
+};
+
+VkJsonInstance VkJsonGetInstance();
+std::string VkJsonInstanceToJson(const VkJsonInstance& instance);
+bool VkJsonInstanceFromJson(const std::string& json,
+                            VkJsonInstance* instance,
+                            std::string* errors);
+
+VkJsonDevice VkJsonGetDevice(VkPhysicalDevice device);
+std::string VkJsonDeviceToJson(const VkJsonDevice& device);
+bool VkJsonDeviceFromJson(const std::string& json,
+                          VkJsonDevice* device,
+                          std::string* errors);
+
+std::string VkJsonImageFormatPropertiesToJson(
+    const VkImageFormatProperties& properties);
+bool VkJsonImageFormatPropertiesFromJson(const std::string& json,
+                                         VkImageFormatProperties* properties,
+                                         std::string* errors);
+
+// Backward-compatibility aliases
+typedef VkJsonDevice VkJsonAllProperties;
+inline VkJsonAllProperties VkJsonGetAllProperties(
+    VkPhysicalDevice physicalDevice) {
+  return VkJsonGetDevice(physicalDevice);
+}
+inline std::string VkJsonAllPropertiesToJson(
+    const VkJsonAllProperties& properties) {
+  return VkJsonDeviceToJson(properties);
+}
+inline bool VkJsonAllPropertiesFromJson(const std::string& json,
+                                        VkJsonAllProperties* properties,
+                                        std::string* errors) {
+  return VkJsonDeviceFromJson(json, properties, errors);
+}
+
+#endif  // VKJSON_H_""")
+
+    f.close()
+  gencom.run_clang_format(genfile)
+
+
+def generate_extension_struct_template():
+  """Generates templates for extensions
+  Example:
+    template <typename Visitor>
+    inline bool Iterate(Visitor* visitor, VkJsonKHRVariablePointers* structs) {
+      return visitor->Visit("variablePointerFeaturesKHR",
+                            &structs->variable_pointer_features_khr) &&
+            visitor->Visit("variablePointersFeaturesKHR",
+                            &structs->variable_pointers_features_khr);
+    }
+  """
+  template_code = []
+
+  for extension, struct_mappings in VK.VULKAN_EXTENSIONS_AND_STRUCTS_MAPPING["extensions"].items():
+    struct_type = get_vkjson_struct_name(extension)
+
+    template_code.append(f"template <typename Visitor>")
+    template_code.append(f"inline bool Iterate(Visitor* visitor, {struct_type}* structs) {{")
+    template_code.append("  return ")
+
+    visitor_calls = []
+    for struct_map in struct_mappings:
+      for struct_name in struct_map:
+        json_field_name = struct_name.replace("VkPhysicalDevice", "")
+        json_field_name = json_field_name[0].lower() + json_field_name[1:]
+
+        # Special case renaming
+        if json_field_name == "8BitStorageFeaturesKHR":
+          json_field_name = "bit8StorageFeaturesKHR"
+
+        visitor_calls.append(
+            f'visitor->Visit("{json_field_name}", &structs->{get_struct_name(struct_name)})'
+        )
+
+    template_code.append(" &&\n         ".join(visitor_calls) + ";")
+    template_code.append("}\n")
+
+  return "\n".join(template_code)
+
+
+def generate_core_template():
+  """Generates templates for vulkan cores.
+  template <typename Visitor>
+  inline bool Iterate(Visitor* visitor, VkJsonCore11* core) {
+    return visitor->Visit("properties", &core->properties) &&
+          visitor->Visit("features", &core->features);
+  }
+  """
+  template_code = []
+
+  for version, struct_list in VK.VULKAN_CORES_AND_STRUCTS_MAPPING["versions"].items():
+    struct_type = f"VkJson{version}"
+
+    template_code.append(f"template <typename Visitor>")
+    template_code.append(f"inline bool Iterate(Visitor* visitor, {struct_type}* core) {{")
+    template_code.append("  return")
+
+    visitor_calls = []
+    for struct_map in struct_list:
+      for struct_name in struct_map:
+        member_name = "properties" if "Properties" in struct_name else "features"
+        visitor_calls.append(f'visitor->Visit("{member_name}", &core->{member_name})')
+
+    template_code.append(" &&\n         ".join(visitor_calls) + ";")
+    template_code.append("}\n")
+
+  return "\n".join(template_code)
+
+
+def generate_struct_template(data_classes):
+  """Generates templates for all the structs
+  template <typename Visitor>
+  inline bool Iterate(Visitor* visitor,
+                      VkPhysicalDevicePointClippingProperties* properties) {
+    return visitor->Visit("pointClippingBehavior",
+                          &properties->pointClippingBehavior);
+  }
+  """
+  template_code = []
+  processed_classes = set()  # Track processed class names
+
+  for dataclass_type in data_classes:
+    struct_name = dataclass_type.__name__
+
+    if struct_name in processed_classes:
+      continue  # Skip already processed struct
+    processed_classes.add(struct_name)
+
+    struct_fields = dataclasses.fields(dataclass_type)
+    template_code.append("template <typename Visitor>")
+
+    # Determine the correct variable name based on the struct type
+    struct_var = "properties" if "Properties" in struct_name else "features" if "Features" in struct_name else "limits" if "Limits" in struct_name else None
+
+    if not struct_var:
+      continue  # Skip structs that don't match expected patterns
+
+    template_code.append(f"inline bool Iterate(Visitor* visitor, {struct_name}* {struct_var}) {{")
+    template_code.append(f"return\n")
+
+    visitor_calls = []
+    for struct_field in struct_fields:
+      field_name = struct_field.name
+      field_type = struct_field.type
+
+      if get_origin(field_type) is list:
+        # Handle list types (VisitArray)
+        size_field_name = VK.LIST_TYPE_FIELD_AND_SIZE_MAPPING[field_name]
+        visitor_calls.append(f'visitor->VisitArray("{field_name}", {struct_var}->{size_field_name}, &{struct_var}->{field_name})')
+      else:
+        # Handle other types (Visit)
+        visitor_calls.append(f'visitor->Visit("{field_name}", &{struct_var}->{field_name})')
+
+    template_code.append(" &&\n         ".join(visitor_calls) + ";")
+    template_code.append("}\n\n")
+
+  return "\n".join(template_code)
+
+
+def emit_struct_visits_by_vk_version(f, version):
+  """Emits visitor calls for Vulkan version structs
+  """
+  for struct_map in VK.VULKAN_VERSIONS_AND_STRUCTS_MAPPING[version]:
+    for struct_name, _ in struct_map.items():
+      struct_var = get_struct_name(struct_name)
+      # Converts struct_var from snake_case (e.g., point_clipping_properties)
+      # to camelCase (e.g., pointClippingProperties) for struct_display_name.
+      struct_display_name = re.sub(r"_([a-z])", lambda match: match.group(1).upper(), struct_var)
+      f.write(f'visitor->Visit("{struct_display_name}", &device->{struct_var}) &&\n')
+
+
+def gen_cc():
+  """Generates vkjson.cc file.
+  """
+  genfile = os.path.join(os.path.dirname(__file__),
+                         "..", "vkjson", "vkjson.cc")
+
+  with open(genfile, "w") as f:
+
+    f.write(get_copyright_warnings())
+    f.write("\n")
+
+    f.write("""\
+#include "vkjson.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <json/json.h>
+
+#include <algorithm>
+#include <cinttypes>
+#include <cmath>
+#include <cstdio>
+#include <limits>
+#include <memory>
+#include <sstream>
+#include <type_traits>
+#include <utility>
+
+/*
+ * This file is autogenerated by vkjson_generator.py. Do not edit directly.
+ */
+namespace {
+
+/*
+ * Annotation to tell clang that we intend to fall through from one case to
+ * another in a switch. Sourced from android-base/macros.h.
+ */
+#define FALLTHROUGH_INTENDED [[clang::fallthrough]]
+
+inline bool IsIntegral(double value) {
+#if defined(ANDROID)
+  // Android NDK doesn't provide std::trunc yet
+  return trunc(value) == value;
+#else
+  return std::trunc(value) == value;
+#endif
+}
+
+// Floating point fields of Vulkan structure use single precision. The string
+// output of max double value in c++ will be larger than Java double's infinity
+// value. Below fake double max/min values are only to serve the safe json text
+// parsing in between C++ and Java, because Java json library simply cannot
+// handle infinity.
+static const double SAFE_DOUBLE_MAX = 0.99 * std::numeric_limits<double>::max();
+static const double SAFE_DOUBLE_MIN = -SAFE_DOUBLE_MAX;
+
+template <typename T> struct EnumTraits;
+template <> struct EnumTraits<VkPhysicalDeviceType> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_PHYSICAL_DEVICE_TYPE_OTHER:
+      case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
+      case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
+      case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
+      case VK_PHYSICAL_DEVICE_TYPE_CPU:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <> struct EnumTraits<VkFormat> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_FORMAT_UNDEFINED:
+      case VK_FORMAT_R4G4_UNORM_PACK8:
+      case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
+      case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
+      case VK_FORMAT_R5G6B5_UNORM_PACK16:
+      case VK_FORMAT_B5G6R5_UNORM_PACK16:
+      case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
+      case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
+      case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
+      case VK_FORMAT_R8_UNORM:
+      case VK_FORMAT_R8_SNORM:
+      case VK_FORMAT_R8_USCALED:
+      case VK_FORMAT_R8_SSCALED:
+      case VK_FORMAT_R8_UINT:
+      case VK_FORMAT_R8_SINT:
+      case VK_FORMAT_R8_SRGB:
+      case VK_FORMAT_R8G8_UNORM:
+      case VK_FORMAT_R8G8_SNORM:
+      case VK_FORMAT_R8G8_USCALED:
+      case VK_FORMAT_R8G8_SSCALED:
+      case VK_FORMAT_R8G8_UINT:
+      case VK_FORMAT_R8G8_SINT:
+      case VK_FORMAT_R8G8_SRGB:
+      case VK_FORMAT_R8G8B8_UNORM:
+      case VK_FORMAT_R8G8B8_SNORM:
+      case VK_FORMAT_R8G8B8_USCALED:
+      case VK_FORMAT_R8G8B8_SSCALED:
+      case VK_FORMAT_R8G8B8_UINT:
+      case VK_FORMAT_R8G8B8_SINT:
+      case VK_FORMAT_R8G8B8_SRGB:
+      case VK_FORMAT_B8G8R8_UNORM:
+      case VK_FORMAT_B8G8R8_SNORM:
+      case VK_FORMAT_B8G8R8_USCALED:
+      case VK_FORMAT_B8G8R8_SSCALED:
+      case VK_FORMAT_B8G8R8_UINT:
+      case VK_FORMAT_B8G8R8_SINT:
+      case VK_FORMAT_B8G8R8_SRGB:
+      case VK_FORMAT_R8G8B8A8_UNORM:
+      case VK_FORMAT_R8G8B8A8_SNORM:
+      case VK_FORMAT_R8G8B8A8_USCALED:
+      case VK_FORMAT_R8G8B8A8_SSCALED:
+      case VK_FORMAT_R8G8B8A8_UINT:
+      case VK_FORMAT_R8G8B8A8_SINT:
+      case VK_FORMAT_R8G8B8A8_SRGB:
+      case VK_FORMAT_B8G8R8A8_UNORM:
+      case VK_FORMAT_B8G8R8A8_SNORM:
+      case VK_FORMAT_B8G8R8A8_USCALED:
+      case VK_FORMAT_B8G8R8A8_SSCALED:
+      case VK_FORMAT_B8G8R8A8_UINT:
+      case VK_FORMAT_B8G8R8A8_SINT:
+      case VK_FORMAT_B8G8R8A8_SRGB:
+      case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
+      case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
+      case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
+      case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
+      case VK_FORMAT_A8B8G8R8_UINT_PACK32:
+      case VK_FORMAT_A8B8G8R8_SINT_PACK32:
+      case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
+      case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
+      case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
+      case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
+      case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
+      case VK_FORMAT_A2R10G10B10_UINT_PACK32:
+      case VK_FORMAT_A2R10G10B10_SINT_PACK32:
+      case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
+      case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
+      case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
+      case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
+      case VK_FORMAT_A2B10G10R10_UINT_PACK32:
+      case VK_FORMAT_A2B10G10R10_SINT_PACK32:
+      case VK_FORMAT_R16_UNORM:
+      case VK_FORMAT_R16_SNORM:
+      case VK_FORMAT_R16_USCALED:
+      case VK_FORMAT_R16_SSCALED:
+      case VK_FORMAT_R16_UINT:
+      case VK_FORMAT_R16_SINT:
+      case VK_FORMAT_R16_SFLOAT:
+      case VK_FORMAT_R16G16_UNORM:
+      case VK_FORMAT_R16G16_SNORM:
+      case VK_FORMAT_R16G16_USCALED:
+      case VK_FORMAT_R16G16_SSCALED:
+      case VK_FORMAT_R16G16_UINT:
+      case VK_FORMAT_R16G16_SINT:
+      case VK_FORMAT_R16G16_SFLOAT:
+      case VK_FORMAT_R16G16B16_UNORM:
+      case VK_FORMAT_R16G16B16_SNORM:
+      case VK_FORMAT_R16G16B16_USCALED:
+      case VK_FORMAT_R16G16B16_SSCALED:
+      case VK_FORMAT_R16G16B16_UINT:
+      case VK_FORMAT_R16G16B16_SINT:
+      case VK_FORMAT_R16G16B16_SFLOAT:
+      case VK_FORMAT_R16G16B16A16_UNORM:
+      case VK_FORMAT_R16G16B16A16_SNORM:
+      case VK_FORMAT_R16G16B16A16_USCALED:
+      case VK_FORMAT_R16G16B16A16_SSCALED:
+      case VK_FORMAT_R16G16B16A16_UINT:
+      case VK_FORMAT_R16G16B16A16_SINT:
+      case VK_FORMAT_R16G16B16A16_SFLOAT:
+      case VK_FORMAT_R32_UINT:
+      case VK_FORMAT_R32_SINT:
+      case VK_FORMAT_R32_SFLOAT:
+      case VK_FORMAT_R32G32_UINT:
+      case VK_FORMAT_R32G32_SINT:
+      case VK_FORMAT_R32G32_SFLOAT:
+      case VK_FORMAT_R32G32B32_UINT:
+      case VK_FORMAT_R32G32B32_SINT:
+      case VK_FORMAT_R32G32B32_SFLOAT:
+      case VK_FORMAT_R32G32B32A32_UINT:
+      case VK_FORMAT_R32G32B32A32_SINT:
+      case VK_FORMAT_R32G32B32A32_SFLOAT:
+      case VK_FORMAT_R64_UINT:
+      case VK_FORMAT_R64_SINT:
+      case VK_FORMAT_R64_SFLOAT:
+      case VK_FORMAT_R64G64_UINT:
+      case VK_FORMAT_R64G64_SINT:
+      case VK_FORMAT_R64G64_SFLOAT:
+      case VK_FORMAT_R64G64B64_UINT:
+      case VK_FORMAT_R64G64B64_SINT:
+      case VK_FORMAT_R64G64B64_SFLOAT:
+      case VK_FORMAT_R64G64B64A64_UINT:
+      case VK_FORMAT_R64G64B64A64_SINT:
+      case VK_FORMAT_R64G64B64A64_SFLOAT:
+      case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
+      case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
+      case VK_FORMAT_D16_UNORM:
+      case VK_FORMAT_X8_D24_UNORM_PACK32:
+      case VK_FORMAT_D32_SFLOAT:
+      case VK_FORMAT_S8_UINT:
+      case VK_FORMAT_D16_UNORM_S8_UINT:
+      case VK_FORMAT_D24_UNORM_S8_UINT:
+      case VK_FORMAT_D32_SFLOAT_S8_UINT:
+      case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
+      case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
+      case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
+      case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
+      case VK_FORMAT_BC2_UNORM_BLOCK:
+      case VK_FORMAT_BC2_SRGB_BLOCK:
+      case VK_FORMAT_BC3_UNORM_BLOCK:
+      case VK_FORMAT_BC3_SRGB_BLOCK:
+      case VK_FORMAT_BC4_UNORM_BLOCK:
+      case VK_FORMAT_BC4_SNORM_BLOCK:
+      case VK_FORMAT_BC5_UNORM_BLOCK:
+      case VK_FORMAT_BC5_SNORM_BLOCK:
+      case VK_FORMAT_BC6H_UFLOAT_BLOCK:
+      case VK_FORMAT_BC6H_SFLOAT_BLOCK:
+      case VK_FORMAT_BC7_UNORM_BLOCK:
+      case VK_FORMAT_BC7_SRGB_BLOCK:
+      case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
+      case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
+      case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
+      case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
+      case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
+      case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
+      case VK_FORMAT_EAC_R11_UNORM_BLOCK:
+      case VK_FORMAT_EAC_R11_SNORM_BLOCK:
+      case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
+      case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
+      case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
+      case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
+      case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
+      case VK_FORMAT_G8B8G8R8_422_UNORM:
+      case VK_FORMAT_B8G8R8G8_422_UNORM:
+      case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
+      case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
+      case VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM:
+      case VK_FORMAT_G8_B8R8_2PLANE_422_UNORM:
+      case VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM:
+      case VK_FORMAT_R10X6_UNORM_PACK16:
+      case VK_FORMAT_R10X6G10X6_UNORM_2PACK16:
+      case VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16:
+      case VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16:
+      case VK_FORMAT_B10X6G10X6R10X6G10X6_422_UNORM_4PACK16:
+      case VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16:
+      case VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16:
+      case VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_422_UNORM_3PACK16:
+      case VK_FORMAT_G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16:
+      case VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_444_UNORM_3PACK16:
+      case VK_FORMAT_R12X4_UNORM_PACK16:
+      case VK_FORMAT_R12X4G12X4_UNORM_2PACK16:
+      case VK_FORMAT_R12X4G12X4B12X4A12X4_UNORM_4PACK16:
+      case VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16:
+      case VK_FORMAT_B12X4G12X4R12X4G12X4_422_UNORM_4PACK16:
+      case VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16:
+      case VK_FORMAT_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16:
+      case VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_422_UNORM_3PACK16:
+      case VK_FORMAT_G12X4_B12X4R12X4_2PLANE_422_UNORM_3PACK16:
+      case VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_444_UNORM_3PACK16:
+      case VK_FORMAT_G16B16G16R16_422_UNORM:
+      case VK_FORMAT_B16G16R16G16_422_UNORM:
+      case VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM:
+      case VK_FORMAT_G16_B16R16_2PLANE_420_UNORM:
+      case VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM:
+      case VK_FORMAT_G16_B16R16_2PLANE_422_UNORM:
+      case VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM:
+      case VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG:
+      case VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG:
+      case VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG:
+      case VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG:
+      case VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG:
+      case VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG:
+      case VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG:
+      case VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG:
+      case VK_FORMAT_ASTC_4x4_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_5x4_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_5x5_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_6x5_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_6x6_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_8x5_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_8x6_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_8x8_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_10x5_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_10x6_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_10x8_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_10x10_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_12x10_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_ASTC_12x12_SFLOAT_BLOCK_EXT:
+      case VK_FORMAT_A4R4G4B4_UNORM_PACK16_EXT:
+      case VK_FORMAT_A4B4G4R4_UNORM_PACK16_EXT:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkPointClippingBehavior> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_POINT_CLIPPING_BEHAVIOR_ALL_CLIP_PLANES:
+      case VK_POINT_CLIPPING_BEHAVIOR_USER_CLIP_PLANES_ONLY:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkExternalFenceHandleTypeFlagBits> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT:
+      case VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_WIN32_BIT:
+      case VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_WIN32_KMT_BIT:
+      case VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkExternalSemaphoreHandleTypeFlagBits> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT:
+      case VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT:
+      case VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_KMT_BIT:
+      case VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_D3D12_FENCE_BIT:
+      case VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SYNC_FD_BIT:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkDriverIdKHR> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_DRIVER_ID_AMD_PROPRIETARY:
+      case VK_DRIVER_ID_AMD_OPEN_SOURCE:
+      case VK_DRIVER_ID_MESA_RADV:
+      case VK_DRIVER_ID_NVIDIA_PROPRIETARY:
+      case VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS:
+      case VK_DRIVER_ID_INTEL_OPEN_SOURCE_MESA:
+      case VK_DRIVER_ID_IMAGINATION_PROPRIETARY:
+      case VK_DRIVER_ID_QUALCOMM_PROPRIETARY:
+      case VK_DRIVER_ID_ARM_PROPRIETARY:
+      case VK_DRIVER_ID_GOOGLE_SWIFTSHADER:
+      case VK_DRIVER_ID_GGP_PROPRIETARY:
+      case VK_DRIVER_ID_BROADCOM_PROPRIETARY:
+      case VK_DRIVER_ID_MESA_LLVMPIPE:
+      case VK_DRIVER_ID_MOLTENVK:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkShaderFloatControlsIndependence> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_32_BIT_ONLY:
+      case VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL:
+      case VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_NONE:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkPipelineRobustnessBufferBehavior> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_PIPELINE_ROBUSTNESS_BUFFER_BEHAVIOR_DEVICE_DEFAULT:
+      case VK_PIPELINE_ROBUSTNESS_BUFFER_BEHAVIOR_DISABLED:
+      case VK_PIPELINE_ROBUSTNESS_BUFFER_BEHAVIOR_ROBUST_BUFFER_ACCESS:
+      case VK_PIPELINE_ROBUSTNESS_BUFFER_BEHAVIOR_ROBUST_BUFFER_ACCESS_2:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkPipelineRobustnessImageBehavior> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_PIPELINE_ROBUSTNESS_IMAGE_BEHAVIOR_DEVICE_DEFAULT:
+      case VK_PIPELINE_ROBUSTNESS_IMAGE_BEHAVIOR_DISABLED:
+      case VK_PIPELINE_ROBUSTNESS_IMAGE_BEHAVIOR_ROBUST_IMAGE_ACCESS:
+      case VK_PIPELINE_ROBUSTNESS_IMAGE_BEHAVIOR_ROBUST_IMAGE_ACCESS_2:
+        return true;
+    }
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<VkImageLayout> {
+  static bool exist(uint32_t e) {
+    switch (e) {
+      case VK_IMAGE_LAYOUT_UNDEFINED:
+      case VK_IMAGE_LAYOUT_GENERAL:
+      case VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL:
+      case VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL:
+      case VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL:
+      case VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL:
+      case VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL:
+      case VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL:
+      case VK_IMAGE_LAYOUT_PREINITIALIZED:
+      case VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_OPTIMAL:
+      case VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_OPTIMAL:
+      case VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL:
+      case VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_OPTIMAL:
+      case VK_IMAGE_LAYOUT_STENCIL_ATTACHMENT_OPTIMAL:
+      case VK_IMAGE_LAYOUT_STENCIL_READ_ONLY_OPTIMAL:
+      case VK_IMAGE_LAYOUT_READ_ONLY_OPTIMAL:
+      case VK_IMAGE_LAYOUT_ATTACHMENT_OPTIMAL:
+      case VK_IMAGE_LAYOUT_PRESENT_SRC_KHR:
+      case VK_IMAGE_LAYOUT_VIDEO_DECODE_DST_KHR:
+      case VK_IMAGE_LAYOUT_VIDEO_DECODE_SRC_KHR:
+      case VK_IMAGE_LAYOUT_VIDEO_DECODE_DPB_KHR:
+      case VK_IMAGE_LAYOUT_SHARED_PRESENT_KHR:
+      case VK_IMAGE_LAYOUT_FRAGMENT_DENSITY_MAP_OPTIMAL_EXT:
+      case VK_IMAGE_LAYOUT_FRAGMENT_SHADING_RATE_ATTACHMENT_OPTIMAL_KHR:
+#ifdef VK_ENABLE_BETA_EXTENSIONS
+      case VK_IMAGE_LAYOUT_VIDEO_ENCODE_DST_KHR:
+#endif
+#ifdef VK_ENABLE_BETA_EXTENSIONS
+      case VK_IMAGE_LAYOUT_VIDEO_ENCODE_SRC_KHR:
+#endif
+#ifdef VK_ENABLE_BETA_EXTENSIONS
+      case VK_IMAGE_LAYOUT_VIDEO_ENCODE_DPB_KHR:
+#endif
+      case VK_IMAGE_LAYOUT_ATTACHMENT_FEEDBACK_LOOP_OPTIMAL_EXT:
+        return true;
+    }
+    return false;
+  }
+};
+
+// VkSparseImageFormatProperties
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkExtent3D* extents) {
+  return
+    visitor->Visit("width", &extents->width) &&
+    visitor->Visit("height", &extents->height) &&
+    visitor->Visit("depth", &extents->depth);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor,
+                    VkConformanceVersionKHR* version) {
+  return visitor->Visit("major", &version->major) &&
+         visitor->Visit("minor", &version->minor) &&
+         visitor->Visit("subminor", &version->subminor) &&
+         visitor->Visit("patch", &version->patch);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkMemoryType* type) {
+  return
+    visitor->Visit("propertyFlags", &type->propertyFlags) &&
+    visitor->Visit("heapIndex", &type->heapIndex);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkMemoryHeap* heap) {
+  return
+    visitor->Visit("size", &heap->size) &&
+    visitor->Visit("flags", &heap->flags);
+}\n\n""")
+
+    f.write(f"{generate_core_template()}\n\n{generate_extension_struct_template()}\n\n")
+    f.write(generate_struct_template(VK.ALL_STRUCTS))
+
+    f.write("""\
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkExternalFenceProperties* properties) {
+  return visitor->Visit("exportFromImportedHandleTypes",
+                        &properties->exportFromImportedHandleTypes) &&
+         visitor->Visit("compatibleHandleTypes",
+                        &properties->compatibleHandleTypes) &&
+         visitor->Visit("externalFenceFeatures",
+                        &properties->externalFenceFeatures);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor,
+                    VkExternalSemaphoreProperties* properties) {
+  return visitor->Visit("exportFromImportedHandleTypes",
+                        &properties->exportFromImportedHandleTypes) &&
+         visitor->Visit("compatibleHandleTypes",
+                        &properties->compatibleHandleTypes) &&
+         visitor->Visit("externalSemaphoreFeatures",
+                        &properties->externalSemaphoreFeatures);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkJsonLayer* layer) {
+  return visitor->Visit("properties", &layer->properties) &&
+         visitor->Visit("extensions", &layer->extensions);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkJsonDeviceGroup* device_group) {
+  return visitor->Visit("devices", &device_group->device_inds) &&
+         visitor->Visit("subsetAllocation",
+                        &device_group->properties.subsetAllocation);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkJsonDevice* device) {
+  bool ret = true;
+  switch (device->properties.apiVersion ^
+          VK_API_VERSION_PATCH(device->properties.apiVersion)) {
+    case VK_API_VERSION_1_4:
+      ret &= visitor->Visit("core14", &device->core14);
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_3:
+      ret &= visitor->Visit("core13", &device->core13);
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_2:
+      ret &= visitor->Visit("core11", &device->core11);
+      ret &= visitor->Visit("core12", &device->core12);
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_1:
+      ret &=\n""")
+
+    emit_struct_visits_by_vk_version(f, "VK_VERSION_1_1")
+
+    f.write("""\
+          visitor->Visit("externalFenceProperties",
+                         &device->external_fence_properties) &&
+          visitor->Visit("externalSemaphoreProperties",
+                         &device->external_semaphore_properties);
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_0:
+      ret &=\n""")
+
+    emit_struct_visits_by_vk_version(f, "VK_VERSION_1_0")
+
+    f.write("""\
+             visitor->Visit("queues", &device->queues) &&
+             visitor->Visit("extensions", &device->extensions) &&
+             visitor->Visit("layers", &device->layers) &&
+             visitor->Visit("formats", &device->formats);\n\n""")
+
+    for extension_name, _ in VK.VULKAN_EXTENSIONS_AND_STRUCTS_MAPPING["extensions"].items():
+      struct_var = get_vkjson_struct_variable_name(extension_name)
+      f.write(f"  if (device->{struct_var}.reported) {{\n")
+      f.write(f"    ret &= visitor->Visit(\"{extension_name}\", &device->{struct_var});\n")
+      f.write("  }\n")
+
+    f.write("""\
+    } return ret; }
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor, VkJsonInstance* instance) {
+  bool ret = true;
+  switch (instance->api_version ^ VK_API_VERSION_PATCH(instance->api_version)) {
+    case VK_API_VERSION_1_4:
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_3:
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_2:
+      ret &= visitor->Visit("apiVersion", &instance->api_version);
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_1:
+      ret &= visitor->Visit("deviceGroups", &instance->device_groups);
+      FALLTHROUGH_INTENDED;
+    case VK_API_VERSION_1_0:
+      char depString[] =
+          "vkjson is deprecated, and will be replaced in a future release";
+      ret &= visitor->Visit("layers", &instance->layers) &&
+             visitor->Visit("extensions", &instance->extensions) &&
+             visitor->Visit("devices", &instance->devices) &&
+             visitor->Visit("_comment", &depString);
+  }
+  return ret;
+}
+
+template <typename T>
+using EnableForArithmetic =
+    typename std::enable_if<std::is_arithmetic<T>::value, void>::type;
+
+template <typename T>
+using EnableForStruct =
+    typename std::enable_if<std::is_class<T>::value, void>::type;
+
+template <typename T>
+using EnableForEnum =
+    typename std::enable_if<std::is_enum<T>::value, void>::type;
+
+template <typename T, typename = EnableForStruct<T>, typename = void>
+Json::Value ToJsonValue(const T& value);
+
+template <typename T, typename = EnableForArithmetic<T>>
+inline Json::Value ToJsonValue(const T& value) {
+  return Json::Value(
+      std::clamp(static_cast<double>(value), SAFE_DOUBLE_MIN, SAFE_DOUBLE_MAX));
+}
+
+inline Json::Value ToJsonValue(const uint64_t& value) {
+  char string[19] = {0};  // "0x" + 16 digits + terminal \\0
+  snprintf(string, sizeof(string), "0x%016" PRIx64, value);
+  return Json::Value(string);
+}
+
+template <typename T, typename = EnableForEnum<T>, typename = void,
+          typename = void>
+inline Json::Value ToJsonValue(const T& value) {
+  return Json::Value(static_cast<double>(value));
+}
+
+template <typename T>
+inline Json::Value ArrayToJsonValue(uint32_t count, const T* values) {
+  Json::Value array(Json::arrayValue);
+  for (unsigned int i = 0; i < count; ++i) array.append(ToJsonValue(values[i]));
+  return array;
+}
+
+template <typename T, size_t N>
+inline Json::Value ToJsonValue(const T (&value)[N]) {
+  return ArrayToJsonValue(N, value);
+}
+
+template <size_t N>
+inline Json::Value ToJsonValue(const char (&value)[N]) {
+  assert(strlen(value) < N);
+  return Json::Value(value);
+}
+
+template <typename T>
+inline Json::Value ToJsonValue(const std::vector<T>& value) {
+  assert(value.size() <= std::numeric_limits<uint32_t>::max());
+  return ArrayToJsonValue(static_cast<uint32_t>(value.size()), value.data());
+}
+
+template <typename F, typename S>
+inline Json::Value ToJsonValue(const std::pair<F, S>& value) {
+  Json::Value array(Json::arrayValue);
+  array.append(ToJsonValue(value.first));
+  array.append(ToJsonValue(value.second));
+  return array;
+}
+
+template <typename F, typename S>
+inline Json::Value ToJsonValue(const std::map<F, S>& value) {
+  Json::Value array(Json::arrayValue);
+  for (auto& kv : value) array.append(ToJsonValue(kv));
+  return array;
+}
+
+class JsonWriterVisitor {
+ public:
+  JsonWriterVisitor() : object_(Json::objectValue) {}
+
+  ~JsonWriterVisitor() {}
+
+  template <typename T> bool Visit(const char* key, const T* value) {
+    object_[key] = ToJsonValue(*value);
+    return true;
+  }
+
+  template <typename T, uint32_t N>
+  bool VisitArray(const char* key, uint32_t count, const T (*value)[N]) {
+    assert(count <= N);
+    object_[key] = ArrayToJsonValue(count, *value);
+    return true;
+  }
+
+  template <typename T>
+  bool VisitArray(const char* key, uint32_t count, const T *value) {
+    object_[key] = ArrayToJsonValue(count, *value);
+    return true;
+  }
+
+  Json::Value get_object() const { return object_; }
+
+ private:
+  Json::Value object_;
+};
+
+template <typename Visitor, typename T>
+inline void VisitForWrite(Visitor* visitor, const T& t) {
+  Iterate(visitor, const_cast<T*>(&t));
+}
+
+template <typename T, typename /*= EnableForStruct<T>*/, typename /*= void*/>
+Json::Value ToJsonValue(const T& value) {
+  JsonWriterVisitor visitor;
+  VisitForWrite(&visitor, value);
+  return visitor.get_object();
+}
+
+template <typename T, typename = EnableForStruct<T>>
+bool AsValue(Json::Value* json_value, T* t);
+
+inline bool AsValue(Json::Value* json_value, int32_t* value) {
+  if (json_value->type() != Json::realValue) return false;
+  double d = json_value->asDouble();
+  if (!IsIntegral(d) ||
+      d < static_cast<double>(std::numeric_limits<int32_t>::min()) ||
+      d > static_cast<double>(std::numeric_limits<int32_t>::max()))
+    return false;
+  *value = static_cast<int32_t>(d);
+  return true;
+}
+
+inline bool AsValue(Json::Value* json_value, uint64_t* value) {
+  if (json_value->type() != Json::stringValue) return false;
+  int result =
+      std::sscanf(json_value->asString().c_str(), "0x%016" PRIx64, value);
+  return result == 1;
+}
+
+inline bool AsValue(Json::Value* json_value, uint32_t* value) {
+  if (json_value->type() != Json::realValue) return false;
+  double d = json_value->asDouble();
+  if (!IsIntegral(d) || d < 0.0 ||
+      d > static_cast<double>(std::numeric_limits<uint32_t>::max()))
+    return false;
+  *value = static_cast<uint32_t>(d);
+  return true;
+}
+
+inline bool AsValue(Json::Value* json_value, uint8_t* value) {
+  uint32_t value32 = 0;
+  AsValue(json_value, &value32);
+  if (value32 > std::numeric_limits<uint8_t>::max())
+    return false;
+  *value = static_cast<uint8_t>(value32);
+  return true;
+}
+
+inline bool AsValue(Json::Value* json_value, float* value) {
+  if (json_value->type() != Json::realValue) return false;
+  *value = static_cast<float>(json_value->asDouble());
+  return true;
+}
+
+inline bool AsValue(Json::Value* json_value, VkImageLayout* t) {
+  uint32_t value = 0;
+  if (!AsValue(json_value, &value))
+    return false;
+  if (!EnumTraits<VkImageLayout>::exist(value)) return false;
+  *t = static_cast<VkImageLayout>(value);
+  return true;
+}
+
+template <typename T>
+inline bool AsArray(Json::Value* json_value, uint32_t count, T* values) {
+  if (json_value->type() != Json::arrayValue || json_value->size() != count)
+    return false;
+  for (uint32_t i = 0; i < count; ++i) {
+    if (!AsValue(&(*json_value)[i], values + i)) return false;
+  }
+  return true;
+}
+
+template <typename T, size_t N>
+inline bool AsValue(Json::Value* json_value, T (*value)[N]) {
+  return AsArray(json_value, N, *value);
+}
+
+template <size_t N>
+inline bool AsValue(Json::Value* json_value, char (*value)[N]) {
+  if (json_value->type() != Json::stringValue) return false;
+  size_t len = json_value->asString().length();
+  if (len >= N)
+    return false;
+  memcpy(*value, json_value->asString().c_str(), len);
+  memset(*value + len, 0, N-len);
+  return true;
+}
+
+template <typename T, typename = EnableForEnum<T>, typename = void>
+inline bool AsValue(Json::Value* json_value, T* t) {
+  uint32_t value = 0;
+  if (!AsValue(json_value, &value))
+      return false;
+  if (!EnumTraits<T>::exist(value)) return false;
+  *t = static_cast<T>(value);
+  return true;
+}
+
+template <typename T>
+inline bool AsValue(Json::Value* json_value, std::vector<T>* value) {
+  if (json_value->type() != Json::arrayValue) return false;
+  int size = json_value->size();
+  value->resize(size);
+  return AsArray(json_value, size, value->data());
+}
+
+template <typename F, typename S>
+inline bool AsValue(Json::Value* json_value, std::pair<F, S>* value) {
+  if (json_value->type() != Json::arrayValue || json_value->size() != 2)
+    return false;
+  return AsValue(&(*json_value)[0], &value->first) &&
+         AsValue(&(*json_value)[1], &value->second);
+}
+
+template <typename F, typename S>
+inline bool AsValue(Json::Value* json_value, std::map<F, S>* value) {
+  if (json_value->type() != Json::arrayValue) return false;
+  int size = json_value->size();
+  for (int i = 0; i < size; ++i) {
+    std::pair<F, S> elem;
+    if (!AsValue(&(*json_value)[i], &elem)) return false;
+    if (!value->insert(elem).second)
+      return false;
+  }
+  return true;
+}
+
+template <typename T>
+bool ReadValue(Json::Value* object, const char* key, T* value,
+               std::string* errors) {
+  Json::Value json_value = (*object)[key];
+  if (!json_value) {
+    if (errors)
+      *errors = std::string(key) + " missing.";
+    return false;
+  }
+  if (AsValue(&json_value, value)) return true;
+  if (errors)
+    *errors = std::string("Wrong type for ") + std::string(key) + ".";
+  return false;
+}
+
+template <typename Visitor, typename T>
+inline bool VisitForRead(Visitor* visitor, T* t) {
+  return Iterate(visitor, t);
+}
+
+class JsonReaderVisitor {
+ public:
+  JsonReaderVisitor(Json::Value* object, std::string* errors)
+      : object_(object), errors_(errors) {}
+
+  template <typename T> bool Visit(const char* key, T* value) const {
+    return ReadValue(object_, key, value, errors_);
+  }
+
+  template <typename T, uint32_t N>
+  bool VisitArray(const char* key, uint32_t count, T (*value)[N]) {
+    if (count > N)
+      return false;
+    Json::Value json_value = (*object_)[key];
+    if (!json_value) {
+      if (errors_)
+        *errors_ = std::string(key) + " missing.";
+      return false;
+    }
+    if (AsArray(&json_value, count, *value)) return true;
+    if (errors_)
+      *errors_ = std::string("Wrong type for ") + std::string(key) + ".";
+    return false;
+  }
+
+  template <typename T>
+  bool VisitArray(const char* key, uint32_t count, T *value) {
+    Json::Value json_value = (*object_)[key];
+    if (!json_value) {
+      if (errors_)
+        *errors_ = std::string(key) + " missing.";
+      return false;
+    }
+    if (AsArray(&json_value, count, *value)) return true;
+    if (errors_)
+      *errors_ = std::string("Wrong type for ") + std::string(key) + ".";
+    return false;
+  }
+
+
+ private:
+  Json::Value* object_;
+  std::string* errors_;
+};
+
+template <typename T, typename /*= EnableForStruct<T>*/>
+bool AsValue(Json::Value* json_value, T* t) {
+  if (json_value->type() != Json::objectValue) return false;
+  JsonReaderVisitor visitor(json_value, nullptr);
+  return VisitForRead(&visitor, t);
+}
+
+
+template <typename T> std::string VkTypeToJson(const T& t) {
+  JsonWriterVisitor visitor;
+  VisitForWrite(&visitor, t);
+  return visitor.get_object().toStyledString();
+}
+
+template <typename T> bool VkTypeFromJson(const std::string& json,
+                                          T* t,
+                                          std::string* errors) {
+  *t = T();
+  Json::Value object(Json::objectValue);
+  Json::CharReaderBuilder builder;
+  builder["collectComments"] = false;
+  std::unique_ptr<Json::CharReader> reader(builder.newCharReader());
+  if (!reader->parse(json.data(), json.data() + json.size(), &object, errors)) {
+    return false;
+  }
+  return AsValue(&object, t);
+}
+
+}  // anonymous namespace
+
+std::string VkJsonInstanceToJson(const VkJsonInstance& instance) {
+  return VkTypeToJson(instance);
+}
+
+bool VkJsonInstanceFromJson(const std::string& json,
+                            VkJsonInstance* instance,
+                            std::string* errors) {
+  return VkTypeFromJson(json, instance, errors);
+}
+
+std::string VkJsonDeviceToJson(const VkJsonDevice& device) {
+  return VkTypeToJson(device);
+}
+
+bool VkJsonDeviceFromJson(const std::string& json,
+                          VkJsonDevice* device,
+                          std::string* errors) {
+  return VkTypeFromJson(json, device, errors);
+};
+
+std::string VkJsonImageFormatPropertiesToJson(
+    const VkImageFormatProperties& properties) {
+  return VkTypeToJson(properties);
+}
+
+bool VkJsonImageFormatPropertiesFromJson(const std::string& json,
+                                         VkImageFormatProperties* properties,
+                                         std::string* errors) {
+  return VkTypeFromJson(json, properties, errors);
+};
+""")
+    f.close()
+  gencom.run_clang_format(genfile)
+
+
+def generate_vk_core_structs_init_code(version):
+  """Generates code to initialize properties and features
+  for structs based on its vulkan API version dependency.
+  """
+  properties_code, features_code = [], []
+
+  for item in VK.VULKAN_CORES_AND_STRUCTS_MAPPING["versions"].get(version, []):
+    for struct_name, struct_type in item.items():
+      version_lower = version.lower()
+
+      if "Properties" in struct_name:
+        properties_code.extend([
+            f"device.{version_lower}.properties.sType = {struct_type};",
+            f"device.{version_lower}.properties.pNext = properties.pNext;",
+            f"properties.pNext = &device.{version_lower}.properties;\n\n"
+        ])
+
+      elif "Features" in struct_name:
+        features_code.extend([
+            f"device.{version_lower}.features.sType = {struct_type};",
+            f"device.{version_lower}.features.pNext = features.pNext;",
+            f"features.pNext = &device.{version_lower}.features;\n\n"
+        ])
+
+  return "\n".join(properties_code), "\n".join(features_code)
+
+
+def generate_vk_extension_structs_init_code(mapping, struct_category, next_pointer):
+  """Generates Vulkan struct initialization code for given struct category (Properties/Features)
+  based on its extension dependency.
+  """
+  generated_code = []
+
+  for extension, struct_mappings in mapping.items():
+    struct_var_name = get_vkjson_struct_variable_name(extension)
+    extension_code = [
+        f"  if (HasExtension(\"{extension}\", device.extensions)) {{",
+        f"    device.{struct_var_name}.reported = true;"
+    ]
+
+    struct_count = 0
+    for struct_mapping in struct_mappings:
+      for struct_name, struct_type in struct_mapping.items():
+        if struct_category in struct_name:
+          struct_count += 1
+          struct_instance = get_struct_name(struct_name)
+          extension_code.extend([
+              f"    device.{struct_var_name}.{struct_instance}.sType = {struct_type};",
+              f"    device.{struct_var_name}.{struct_instance}.pNext = {next_pointer}.pNext;",
+              f"    {next_pointer}.pNext = &device.{struct_var_name}.{struct_instance};"
+          ])
+
+    extension_code.append("  }\n")
+
+    if struct_count > 0:
+      generated_code.extend(extension_code)
+
+  return "\n".join(generated_code)
+
+
+def generate_vk_version_structs_initialization(version_data, struct_type_keyword, next_pointer):
+  """Generates Vulkan struct initialization code for given struct category (Properties/Features)
+  of vulkan api version s.
+  """
+  struct_initialization_code = []
+
+  for struct_mapping in version_data:
+    for struct_name, struct_type in struct_mapping.items():
+      if struct_type_keyword in struct_name:
+        struct_variable = get_struct_name(struct_name)
+        struct_initialization_code.extend([
+            f"device.{struct_variable}.sType = {struct_type};",
+            f"device.{struct_variable}.pNext = {next_pointer}.pNext;",
+            f"{next_pointer}.pNext = &device.{struct_variable};\n"
+        ])
+
+  return "\n".join(struct_initialization_code)
+
+
+def gen_instance_cc():
+  """Generates vkjson_instance.cc file.
+  """
+  genfile = os.path.join(os.path.dirname(__file__),
+                         "..", "vkjson", "vkjson_instance.cc")
+
+  with open(genfile, "w") as f:
+    f.write(get_copyright_warnings())
+    f.write("\n")
+
+    f.write("""\
+#ifndef VK_PROTOTYPES
+#define VK_PROTOTYPES
+#endif
+
+#include "vkjson.h"
+
+#include <algorithm>
+#include <utility>
+
+/*
+ * This file is autogenerated by vkjson_generator.py. Do not edit directly.
+ */
+namespace {
+
+bool EnumerateExtensions(const char* layer_name,
+                         std::vector<VkExtensionProperties>* extensions) {
+  VkResult result;
+  uint32_t count = 0;
+  result = vkEnumerateInstanceExtensionProperties(layer_name, &count, nullptr);
+  if (result != VK_SUCCESS)
+    return false;
+  extensions->resize(count);
+  result = vkEnumerateInstanceExtensionProperties(layer_name, &count,
+                                                  extensions->data());
+  if (result != VK_SUCCESS)
+    return false;
+  return true;
+}
+
+bool HasExtension(const char* extension_name,
+                  const std::vector<VkExtensionProperties>& extensions) {
+  return std::find_if(extensions.cbegin(), extensions.cend(),
+                      [extension_name](const VkExtensionProperties& extension) {
+                        return strcmp(extension.extensionName,
+                                      extension_name) == 0;
+                      }) != extensions.cend();
+}
+}  // anonymous namespace
+
+VkJsonDevice VkJsonGetDevice(VkPhysicalDevice physical_device) {
+  VkJsonDevice device;
+
+  uint32_t extension_count = 0;
+  vkEnumerateDeviceExtensionProperties(physical_device, nullptr,
+                                       &extension_count, nullptr);
+  if (extension_count > 0) {
+    device.extensions.resize(extension_count);
+    vkEnumerateDeviceExtensionProperties(
+        physical_device, nullptr, &extension_count, device.extensions.data());
+  }
+
+  uint32_t layer_count = 0;
+  vkEnumerateDeviceLayerProperties(physical_device, &layer_count, nullptr);
+  if (layer_count > 0) {
+    device.layers.resize(layer_count);
+    vkEnumerateDeviceLayerProperties(physical_device, &layer_count,
+                                     device.layers.data());
+  }
+
+  VkPhysicalDeviceProperties2 properties = {
+      VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
+      nullptr,
+      {},
+  };\n\n""")
+
+    cc_code_properties = generate_vk_extension_structs_init_code(
+    VK.VULKAN_EXTENSIONS_AND_STRUCTS_MAPPING["extensions"], "Properties", "properties"
+    )
+    f.write(f'{cc_code_properties}\n')
+
+    f.write("""\
+
+  vkGetPhysicalDeviceProperties2(physical_device, &properties);
+  device.properties = properties.properties;
+
+  VkPhysicalDeviceFeatures2 features = {
+      VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2,
+      nullptr,
+      {},
+  };\n\n""")
+
+    cc_code_features = generate_vk_extension_structs_init_code(
+      VK.VULKAN_EXTENSIONS_AND_STRUCTS_MAPPING["extensions"], "Features", "features"
+    )
+    f.write(f'{cc_code_features}\n')
+
+    f.write("""\
+
+  vkGetPhysicalDeviceFeatures2(physical_device, &features);
+  device.features = features.features;
+
+  vkGetPhysicalDeviceMemoryProperties(physical_device, &device.memory);
+
+  uint32_t queue_family_count = 0;
+  vkGetPhysicalDeviceQueueFamilyProperties(physical_device, &queue_family_count,
+                                           nullptr);
+  if (queue_family_count > 0) {
+    device.queues.resize(queue_family_count);
+    vkGetPhysicalDeviceQueueFamilyProperties(
+        physical_device, &queue_family_count, device.queues.data());
+  }
+
+  VkFormatProperties format_properties = {};
+  for (VkFormat format = VK_FORMAT_R4G4_UNORM_PACK8;
+       // TODO(http://b/171403054): avoid hard-coding last value in the
+       // contiguous range
+       format <= VK_FORMAT_ASTC_12x12_SRGB_BLOCK;
+       format = static_cast<VkFormat>(format + 1)) {
+    vkGetPhysicalDeviceFormatProperties(physical_device, format,
+                                        &format_properties);
+    if (format_properties.linearTilingFeatures ||
+        format_properties.optimalTilingFeatures ||
+        format_properties.bufferFeatures) {
+      device.formats.insert(std::make_pair(format, format_properties));
+    }
+  }
+
+  if (device.properties.apiVersion >= VK_API_VERSION_1_1) {
+    for (VkFormat format = VK_FORMAT_G8B8G8R8_422_UNORM;
+         // TODO(http://b/171403054): avoid hard-coding last value in the
+         // contiguous range
+         format <= VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM;
+         format = static_cast<VkFormat>(format + 1)) {
+      vkGetPhysicalDeviceFormatProperties(physical_device, format,
+                                          &format_properties);
+      if (format_properties.linearTilingFeatures ||
+          format_properties.optimalTilingFeatures ||
+          format_properties.bufferFeatures) {
+        device.formats.insert(std::make_pair(format, format_properties));
+      }
+    }\n\n""")
+
+    # Vulkan version data for VK_VERSION_1_1
+    vk_version_data = VK.VULKAN_VERSIONS_AND_STRUCTS_MAPPING["VK_VERSION_1_1"]
+    f.write(generate_vk_version_structs_initialization(vk_version_data, "Properties", "properties") + "\n")
+
+    f.write("""\
+    vkGetPhysicalDeviceProperties2(physical_device, &properties);\n\n""")
+
+    features_initialization_code = generate_vk_version_structs_initialization(vk_version_data, "Features", "features")
+    f.write(features_initialization_code)
+
+    f.write("""\
+
+    vkGetPhysicalDeviceFeatures2(physical_device, &features);
+
+    VkPhysicalDeviceExternalFenceInfo external_fence_info = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_FENCE_INFO, nullptr,
+        VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT};
+    VkExternalFenceProperties external_fence_properties = {};
+
+    for (VkExternalFenceHandleTypeFlagBits handle_type =
+             VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT;
+         handle_type <= VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT;
+         handle_type =
+             static_cast<VkExternalFenceHandleTypeFlagBits>(handle_type << 1)) {
+      external_fence_info.handleType = handle_type;
+      vkGetPhysicalDeviceExternalFenceProperties(
+          physical_device, &external_fence_info, &external_fence_properties);
+      if (external_fence_properties.exportFromImportedHandleTypes ||
+          external_fence_properties.compatibleHandleTypes ||
+          external_fence_properties.externalFenceFeatures) {
+        device.external_fence_properties.insert(
+            std::make_pair(handle_type, external_fence_properties));
+      }
+    }
+
+    VkPhysicalDeviceExternalSemaphoreInfo external_semaphore_info = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_SEMAPHORE_INFO, nullptr,
+        VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT};
+    VkExternalSemaphoreProperties external_semaphore_properties = {};
+
+    for (VkExternalSemaphoreHandleTypeFlagBits handle_type =
+             VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
+         handle_type <= VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SYNC_FD_BIT;
+         handle_type = static_cast<VkExternalSemaphoreHandleTypeFlagBits>(
+             handle_type << 1)) {
+      external_semaphore_info.handleType = handle_type;
+      vkGetPhysicalDeviceExternalSemaphoreProperties(
+          physical_device, &external_semaphore_info,
+          &external_semaphore_properties);
+      if (external_semaphore_properties.exportFromImportedHandleTypes ||
+          external_semaphore_properties.compatibleHandleTypes ||
+          external_semaphore_properties.externalSemaphoreFeatures) {
+        device.external_semaphore_properties.insert(
+            std::make_pair(handle_type, external_semaphore_properties));
+      }
+    }
+  }
+
+  if (device.properties.apiVersion >= VK_API_VERSION_1_2) {\n""")
+
+    cc_code_properties_11, cc_code_features_11 = generate_vk_core_structs_init_code("Core11")
+    cc_code_properties_12, cc_code_features_12 = generate_vk_core_structs_init_code("Core12")
+    cc_code_properties_13, cc_code_features_13 = generate_vk_core_structs_init_code("Core13")
+    cc_code_properties_14, cc_code_features_14 = generate_vk_core_structs_init_code("Core14")
+
+    f.write(cc_code_properties_11)
+    f.write(cc_code_properties_12)
+    f.write(f"vkGetPhysicalDeviceProperties2(physical_device, &properties);\n\n")
+    f.write(cc_code_features_11)
+    f.write(cc_code_features_12)
+    f.write(f"vkGetPhysicalDeviceFeatures2(physical_device, &features);\n\n")
+    f.write("""\
+  }
+
+  if (device.properties.apiVersion >= VK_API_VERSION_1_3) {\n""")
+    f.write(cc_code_properties_13)
+    f.write(f"vkGetPhysicalDeviceProperties2(physical_device, &properties);\n\n")
+    f.write(cc_code_features_13)
+    f.write(f"vkGetPhysicalDeviceFeatures2(physical_device, &features);\n\n")
+    f.write("""\
+  }
+
+  if (device.properties.apiVersion >= VK_API_VERSION_1_4) {\n""")
+    f.write(cc_code_properties_14)
+    f.write(f"vkGetPhysicalDeviceProperties2(physical_device, &properties);\n\n")
+    f.write(cc_code_features_14)
+    f.write(f"vkGetPhysicalDeviceFeatures2(physical_device, &features);\n\n")
+    f.write("""\
+  }
+
+  return device;
+}
+
+VkJsonInstance VkJsonGetInstance() {
+  VkJsonInstance instance;
+  VkResult result;
+  uint32_t count;
+
+  count = 0;
+  result = vkEnumerateInstanceLayerProperties(&count, nullptr);
+  if (result != VK_SUCCESS)
+    return VkJsonInstance();
+  if (count > 0) {
+    std::vector<VkLayerProperties> layers(count);
+    result = vkEnumerateInstanceLayerProperties(&count, layers.data());
+    if (result != VK_SUCCESS)
+      return VkJsonInstance();
+    instance.layers.reserve(count);
+    for (auto& layer : layers) {
+      instance.layers.push_back(VkJsonLayer{layer, std::vector<VkExtensionProperties>()});
+      if (!EnumerateExtensions(layer.layerName,
+                               &instance.layers.back().extensions))
+        return VkJsonInstance();
+    }
+  }
+
+  if (!EnumerateExtensions(nullptr, &instance.extensions))
+    return VkJsonInstance();
+
+  const VkApplicationInfo app_info = {
+      VK_STRUCTURE_TYPE_APPLICATION_INFO,
+      nullptr,
+      "vkjson_info",
+      1,
+      "",
+      0,
+      VK_API_VERSION_1_1,
+  };
+  VkInstanceCreateInfo instance_info = {
+      VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
+      nullptr,
+      0,
+      &app_info,
+      0,
+      nullptr,
+      0,
+      nullptr,
+  };
+  VkInstance vkinstance;
+  result = vkCreateInstance(&instance_info, nullptr, &vkinstance);
+  if (result != VK_SUCCESS)
+    return VkJsonInstance();
+
+  count = 0;
+  result = vkEnumeratePhysicalDevices(vkinstance, &count, nullptr);
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+
+  std::vector<VkPhysicalDevice> devices(count, VK_NULL_HANDLE);
+  result = vkEnumeratePhysicalDevices(vkinstance, &count, devices.data());
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+
+  std::map<VkPhysicalDevice, uint32_t> device_map;
+  const uint32_t sz = devices.size();
+  instance.devices.reserve(sz);
+  for (uint32_t i = 0; i < sz; ++i) {
+    device_map.insert(std::make_pair(devices[i], i));
+    instance.devices.emplace_back(VkJsonGetDevice(devices[i]));
+  }
+
+  result = vkEnumerateInstanceVersion(&instance.api_version);
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+
+  count = 0;
+  result = vkEnumeratePhysicalDeviceGroups(vkinstance, &count, nullptr);
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+
+  VkJsonDeviceGroup device_group;
+  std::vector<VkPhysicalDeviceGroupProperties> group_properties;
+  group_properties.resize(count);
+  for (auto& properties : group_properties) {
+    properties.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_GROUP_PROPERTIES;
+    properties.pNext = nullptr;
+  }
+  result = vkEnumeratePhysicalDeviceGroups(vkinstance, &count,
+                                           group_properties.data());
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+  for (auto properties : group_properties) {
+    device_group.properties = properties;
+    for (uint32_t i = 0; i < properties.physicalDeviceCount; ++i) {
+      device_group.device_inds.push_back(
+          device_map[properties.physicalDevices[i]]);
+    }
+    instance.device_groups.push_back(device_group);
+  }
+
+  vkDestroyInstance(vkinstance, nullptr);
+  return instance;
+}
+
+\n""")
+
+    f.close()
+  gencom.run_clang_format(genfile)
\ No newline at end of file