Function getUnionCodec

getUnionCodec<const TVariants extends readonly Codec<any>[]>(
    variants: TVariants,
    getIndexFromValue: (value: GetEncoderTypeFromVariants<TVariants>) => number,
    getIndexFromBytes: (bytes: ReadonlyUint8Array, offset: number) => number,
): Codec<
    GetEncoderTypeFromVariants<TVariants>,
    GetDecoderTypeFromVariants<TVariants> & GetEncoderTypeFromVariants<
        TVariants,
    >,
>
Creates a union codec from the provided array of codec.
Type Parameters
- const TVariants extends readonly Codec<any>[]
Parameters
- variants: TVariants
  The variant codecs of the union.
- getIndexFromValue: (value: GetEncoderTypeFromVariants<TVariants>) => number
  A function that returns the index of the variant from the provided value.
- getIndexFromBytes: (bytes: ReadonlyUint8Array, offset: number) => number
  A function that returns the index of the variant from the byte array.
Returns Codec<
    GetEncoderTypeFromVariants<TVariants>,
    GetDecoderTypeFromVariants<TVariants> & GetEncoderTypeFromVariants<
        TVariants,
    >,
>
- Defined in packages/codecs-data-structures/dist/types/union.d.ts:30