Instance Method (Default implementation)swift 6.0.3Swift
decodeIfPresent(_:)
mutating func decodeIfPresent(_ type: Double.Type) throws -> Double? mutating func decodeIfPresent(_ type: Double.Type) throws -> Double? ss24UnkeyedDecodingContainerPsE15decodeIfPresentySdSgSdmKF What are these?3TUYSimport Swiftprotocol UnkeyedDecodingContainerA type that provides a view into a decoder’s storage and is used to hold the encoded properties of a decodable type sequentially, without keys.
@frozen struct DoubleA double-precision, floating-point value type.
mutating func decodeIfPresent(_ type: String.Type) throws -> String? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Bool.Type) throws -> Bool? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Double.Type) throws -> Double? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Float.Type) throws -> Float? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Int.Type) throws -> Int? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: UInt.Type) throws -> UInt? Decodes a value of the given type, if present.
mutating func decodeIfPresent<T>(_ type: T.Type) throws -> T? where T : Decodable Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Int8.Type) throws -> Int8? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Int16.Type) throws -> Int16? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Int32.Type) throws -> Int32? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Int64.Type) throws -> Int64? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: UInt8.Type) throws -> UInt8? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: Int128.Type) throws -> Int128? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: UInt16.Type) throws -> UInt16? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: UInt32.Type) throws -> UInt32? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: UInt64.Type) throws -> UInt64? Decodes a value of the given type, if present.
mutating func decodeIfPresent(_ type: UInt128.Type) throws -> UInt128? Decodes a value of the given type, if present.
mutating func decode(_ type: Int128.Type) throws -> Int128 mutating func decode(_ type: UInt128.Type) throws -> UInt128 mutating func decodeIfPresent(_ type: String.Type) throws -> String? mutating func decodeIfPresent(_ type: Bool.Type) throws -> Bool? mutating func decodeIfPresent(_ type: Float.Type) throws -> Float? mutating func decodeIfPresent(_ type: Int.Type) throws -> Int? mutating func decodeIfPresent(_ type: UInt.Type) throws -> UInt? mutating func decodeIfPresent<T>(_ type: T.Type) throws -> T? where T : Decodable mutating func decodeIfPresent(_ type: Int8.Type) throws -> Int8? mutating func decodeIfPresent(_ type: Int16.Type) throws -> Int16? mutating func decodeIfPresent(_ type: Int32.Type) throws -> Int32? mutating func decodeIfPresent(_ type: Int64.Type) throws -> Int64? mutating func decodeIfPresent(_ type: UInt8.Type) throws -> UInt8? mutating func decodeIfPresent(_ type: Int128.Type) throws -> Int128? mutating func decodeIfPresent(_ type: UInt16.Type) throws -> UInt16? mutating func decodeIfPresent(_ type: UInt32.Type) throws -> UInt32? mutating func decodeIfPresent(_ type: UInt64.Type) throws -> UInt64? mutating func decodeIfPresent(_ type: UInt128.Type) throws -> UInt128?