{
	"$schema": "https://json-schema.org/draft/2020-12/schema",
	"type": "object",
	"properties":
	{
		"register_extension":
		{
			"type": "object",
			"description": "This section must be present for all KHR extensions, for all extensions that were promoted to the core and for all extensions for which aliases should be populated.",
			"properties":
			{
				"type":
				{
					"type": "string",
					"enum": ["device", "instance"],
					"description": "This property specifies if this is device or instance extension."
				},
				"core":
				{
					"type": "string",
					"description": "This property specifies vulkan version to which this extension was fully promoted. Empty string is also accepted and must be used for partialy promoted extensions.",
					"pattern": "^$|^[1-9]\\.[0-9]\\.[0-9]\\.[0-9]$"
				}
			},
			"required": ["type", "core"],
			"additionalProperties": false
		},
		"mandatory_features":
		{
			"type": "object",
			"description": "When this section is present it specifies mandatory features for extension or vulkan version.",
			"patternProperties":
			{
				"^VkPhysicalDevice[1-9A-Za-z]*Features(EXT|KHR|VALVE)?$":
				{
					"type": "array",
					"description": "List of mandatory features in given feature structure.",
					"minItems": 1,
					"items":
					{
						"type": "object",
						"properties":
						{
							"features":
							{
								"type": "array",
								"description": "List of structure attributes - at least one of them must be supported when requirements are meat.",
								"minItems": 1,
								"items":
								{
									"type": "string"
								}
							},
							"requirements":
							{
								"type": "array",
								"description": "List of requirements (other features, extensions, vulkan version). This list can be empty.",
								"items":
								{
									"type": "string"
								}
							},
							"mandatory_variant":
							{
								"type": "array",
								"description": "When this section is present it specifies mandatory features variant.",
								"items": {
									"type": "string",
									"enum": ["vulkan", "vulkansc"]
								}
							}
						},
						"required": ["features", "requirements"],
						"additionalProperties": false
					}
				},
				"additionalProperties": { "type": "string" }
			},
			"additionalProperties": false
		},
		"mandatory_extensions":
		{
			"type": "array",
			"description": "When this section is present it specifies mandatory extensions for the given features",
			"items":
			{
				"type": "object",
				"properties":
				{
					"extension":
					{
						"type": "string"
					},
					"requirements":
					{
						"type": "array",
						"description": "List of requirements (other features, extensions, vulkan version). This list can be empty.",
						"minItems": 1,
						"items":
						{
							"type": "string"
						}
					},
					"mandatory_variant":
					{
						"type": "array",
						"description": "When this section is present it specifies mandatory features variant.",
						"items": {
							"type": "string",
							"enum": ["vulkan", "vulkansc"]
						}
					}
				},
				"additionalProperties": false
			}
		}
	},
	"additionalProperties": false
}