Required Instance Methodswift 6.0.3Swift

    decodeIfPresent(_:)

    Decodes a value of the given type, if present.

    iOS
    18.0+
    macOS
    15.0+
    tvOS
    18.0+
    visionOS
    2.0+
    watchOS
    11.0+
    mutating func decodeIfPresent(_ type: Int128.Type) throws -> Int128?
    Mangled symbol
    ss24UnkeyedDecodingContainerP15decodeIfPresentys6Int128VSgAEmKF What are these?
    FNV24 hash
    GXLI

    Parameters

    type

    The type of value to decode.

    Returns

    A decoded value of the requested type, or nil if the value is a null value, or if there are no more elements to decode.

    Throws

    DecodingError.typeMismatch if the encountered encoded value is not convertible to the requested type.

    This method returns nil if the container has no elements left to decode, or if the value is null. The difference between these states can be distinguished by checking isAtEnd.