KeyedDecodingContainerProtocol
A type that provides a view into a decoder’s storage and is used to hold the encoded properties of a decodable type in a keyed manner.
protocol KeyedDecodingContainerProtocolDecoders should provide types conforming to UnkeyedDecodingContainer for their format.
Requirements
associatedtype Key : CodingKeyvar allKeys: [Self.Key]All the keys the
Decoderhas for this container.var codingPath: [CodingKey]The path of coding keys taken to get to this point in decoding.
func contains(Self.Key) -> Bool Returns a Boolean value indicating whether the decoder contains a value associated with the given key.
func decode(String.Type, forKey: Self.Key) throws -> String Decodes a value of the given type for the given key.
func decode(Bool.Type, forKey: Self.Key) throws -> Bool Decodes a value of the given type for the given key.
func decode(Double.Type, forKey: Self.Key) throws -> Double Decodes a value of the given type for the given key.
func decode(Float.Type, forKey: Self.Key) throws -> Float Decodes a value of the given type for the given key.
func decode(Int.Type, forKey: Self.Key) throws -> Int Decodes a value of the given type for the given key.
func decode(UInt.Type, forKey: Self.Key) throws -> UInt Decodes a value of the given type for the given key.
func decode<T>(T.Type, forKey: Self.Key) throws -> T Decodes a value of the given type for the given key.
func decode(Int8.Type, forKey: Self.Key) throws -> Int8 Decodes a value of the given type for the given key.
func decode(Int16.Type, forKey: Self.Key) throws -> Int16 Decodes a value of the given type for the given key.
func decode(Int32.Type, forKey: Self.Key) throws -> Int32 Decodes a value of the given type for the given key.
func decode(Int64.Type, forKey: Self.Key) throws -> Int64 Decodes a value of the given type for the given key.
func decode(UInt8.Type, forKey: Self.Key) throws -> UInt8 Decodes a value of the given type for the given key.
func decode(UInt16.Type, forKey: Self.Key) throws -> UInt16 Decodes a value of the given type for the given key.
func decode(UInt32.Type, forKey: Self.Key) throws -> UInt32 Decodes a value of the given type for the given key.
func decode(UInt64.Type, forKey: Self.Key) throws -> UInt64 Decodes a value of the given type for the given key.
func decodeIfPresent(String.Type, forKey: Self.Key) throws -> String? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Bool.Type, forKey: Self.Key) throws -> Bool? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Double.Type, forKey: Self.Key) throws -> Double? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Float.Type, forKey: Self.Key) throws -> Float? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Int.Type, forKey: Self.Key) throws -> Int? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(UInt.Type, forKey: Self.Key) throws -> UInt? Decodes a value of the given type for the given key, if present.
func decodeIfPresent<T>(T.Type, forKey: Self.Key) throws -> T? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Int8.Type, forKey: Self.Key) throws -> Int8? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Int16.Type, forKey: Self.Key) throws -> Int16? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Int32.Type, forKey: Self.Key) throws -> Int32? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(Int64.Type, forKey: Self.Key) throws -> Int64? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(UInt8.Type, forKey: Self.Key) throws -> UInt8? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(UInt16.Type, forKey: Self.Key) throws -> UInt16? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(UInt32.Type, forKey: Self.Key) throws -> UInt32? Decodes a value of the given type for the given key, if present.
func decodeIfPresent(UInt64.Type, forKey: Self.Key) throws -> UInt64? Decodes a value of the given type for the given key, if present.
func decodeNil(forKey: Self.Key) throws -> Bool Decodes a null value for the given key.
func nestedContainer<NestedKey>(keyedBy: NestedKey.Type, forKey: Self.Key) throws -> KeyedDecodingContainer<NestedKey> Returns the data stored for the given key as represented in a container keyed by the given key type.
func nestedUnkeyedContainer(forKey: Self.Key) throws -> UnkeyedDecodingContainer Returns the data stored for the given key as represented in an unkeyed container.
func superDecoder() throws -> Decoder Returns a
Decoderinstance for decodingsuperfrom the container associated with the defaultsuperkey.func superDecoder(forKey: Self.Key) throws -> Decoder Returns a
Decoderinstance for decodingsuperfrom the container associated with the given key.