@metamask/snaps-sdk
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A library containing the core functionality for building MetaMask Snaps
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{"version":3,"file":"jsx.cjs","sourceRoot":"","sources":["../../src/internals/jsx.ts"],"names":[],"mappings":";;;AAcA,2CAAkC;AAyElC;;;;;;;GAOG;AACH,SAAgB,SAAS,CACvB,OAAoC;IAEpC,OAAO,IAAA,eAAK,EAAC,OAAO,CAGnB,CAAC;AACJ,CAAC;AAPD,8BAOC","sourcesContent":["import type {\n AnyStruct,\n EnumSchema,\n Infer,\n InferStructTuple,\n IsExactMatch,\n IsMatch,\n IsRecord,\n IsTuple,\n Struct,\n UnionToIntersection,\n} from '@metamask/superstruct';\nimport type { CaipChainId } from '@metamask/utils';\n\nimport { union } from './structs';\nimport type { EmptyObject } from '../types';\n\n/**\n * Check if a type is a union. Infers `true` if it is a union, otherwise\n * `false`.\n */\ntype IsUnion<Type> = [Type] extends [UnionToIntersection<Type>] ? false : true;\n\n/**\n * Get a struct schema for a type.\n *\n * This is copied from `superstruct` but fixes some issues with the original\n * implementation.\n */\ntype StructSchema<Type> =\n IsUnion<Type> extends true\n ? null\n : [Type] extends [EmptyObject]\n ? EmptyObject\n : [Type] extends [string | undefined | null]\n ? [Type] extends [`0x${string}`]\n ? null\n : [Type] extends [CaipChainId]\n ? null\n : [Type] extends [IsMatch<Type, string | undefined | null>]\n ? null\n : [Type] extends [IsUnion<Type>]\n ? EnumSchema<Type>\n : Type\n : [Type] extends [number | undefined | null]\n ? [Type] extends [IsMatch<Type, number | undefined | null>]\n ? null\n : [Type] extends [IsUnion<Type>]\n ? EnumSchema<Type>\n : Type\n : [Type] extends [boolean]\n ? [Type] extends [IsExactMatch<Type, boolean>]\n ? null\n : Type\n : Type extends\n | bigint\n | symbol\n | undefined\n | null\n // eslint-disable-next-line @typescript-eslint/no-unsafe-function-type\n | Function\n | Date\n | Error\n | RegExp\n | Map<any, any>\n | WeakMap<any, any>\n | Set<any>\n | WeakSet<any>\n | Promise<any>\n ? null\n : Type extends (infer E)[]\n ? Type extends IsTuple<Type>\n ? null\n : Struct<E>\n : Type extends object\n ? Type extends IsRecord<Type>\n ? null\n : {\n [InnerKey in keyof Type]: Describe<Type[InnerKey]>;\n }\n : null;\n\n/**\n * Describe a struct type.\n */\nexport type Describe<Type> = Struct<Type, StructSchema<Type>>;\n\n/**\n * Create a union struct that uses `null` for the schema type, for better\n * compatibility with `Describe`.\n *\n * @param structs - The structs to union.\n * @returns The `superstruct` struct, which validates that the value satisfies\n * one of the structs.\n */\nexport function nullUnion<Head extends AnyStruct, Tail extends AnyStruct[]>(\n structs: [head: Head, ...tail: Tail],\n): Struct<Infer<Head> | InferStructTuple<Tail>[number], null> {\n return union(structs) as unknown as Struct<\n Infer<Head> | InferStructTuple<Tail>[number],\n null\n >;\n}\n"]}