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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| // | ||
| // AnyCodable.swift | ||
| // Experiment | ||
| // | ||
| // Created by Brian Giori on 9/20/23. | ||
| // | ||
|
|
||
| import Foundation | ||
|
|
||
| internal struct AnyDecodable: Decodable { | ||
|
|
||
| let value: Any? | ||
|
|
||
| init<T>(_ value: T?) { | ||
| if value is NSNull { | ||
| self.value = nil | ||
| } else { | ||
| self.value = value | ||
| } | ||
| } | ||
|
|
||
| init(from decoder: Decoder) throws { | ||
| let container = try decoder.singleValueContainer() | ||
|
|
||
| if container.decodeNil() { | ||
| self.init(NSNull()) | ||
| } else if let bool = try? container.decode(Bool.self) { | ||
| self.init(bool) | ||
| } else if let int = try? container.decode(Int.self) { | ||
| self.init(int) | ||
| } else if let uint = try? container.decode(UInt.self) { | ||
| self.init(uint) | ||
| } else if let double = try? container.decode(Double.self) { | ||
| self.init(double) | ||
| } else if let string = try? container.decode(String.self) { | ||
| self.init(string) | ||
| } else if let array = try? container.decode([AnyDecodable].self) { | ||
| self.init(array.map { $0.value }) | ||
| } else if let dictionary = try? container.decode([String: AnyDecodable].self) { | ||
| self.init(dictionary.mapValues { $0.value }) | ||
| } else { | ||
| throw DecodingError.dataCorruptedError(in: container, debugDescription: "AnyDecodable value cannot be decoded") | ||
| } | ||
| } | ||
| } | ||
|
|
||
| internal struct AnyEncodable: Encodable { | ||
|
|
||
| let value: Any | ||
|
|
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| init<T>(_ value: T?) { | ||
| self.value = value ?? () | ||
| } | ||
|
|
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| func encode(to encoder: Encoder) throws { | ||
| var container = encoder.singleValueContainer() | ||
|
|
||
| switch value { | ||
| case is NSNull: | ||
| try container.encodeNil() | ||
| case is Void: | ||
| try container.encodeNil() | ||
| case let bool as Bool: | ||
| try container.encode(bool) | ||
| case let int as Int: | ||
| try container.encode(int) | ||
| case let int8 as Int8: | ||
| try container.encode(int8) | ||
| case let int16 as Int16: | ||
| try container.encode(int16) | ||
| case let int32 as Int32: | ||
| try container.encode(int32) | ||
| case let int64 as Int64: | ||
| try container.encode(int64) | ||
| case let uint as UInt: | ||
| try container.encode(uint) | ||
| case let uint8 as UInt8: | ||
| try container.encode(uint8) | ||
| case let uint16 as UInt16: | ||
| try container.encode(uint16) | ||
| case let uint32 as UInt32: | ||
| try container.encode(uint32) | ||
| case let uint64 as UInt64: | ||
| try container.encode(uint64) | ||
| case let float as Float: | ||
| try container.encode(float) | ||
| case let double as Double: | ||
| try container.encode(double) | ||
| case let string as String: | ||
| try container.encode(string) | ||
| case let number as NSNumber: | ||
| try encode(nsnumber: number, into: &container) | ||
| case let date as Date: | ||
| try container.encode(date) | ||
| case let url as URL: | ||
| try container.encode(url) | ||
| case let array as [Any?]: | ||
| try container.encode(array.map { AnyEncodable($0) }) | ||
| case let dictionary as [String: Any?]: | ||
| try container.encode(dictionary.mapValues { AnyEncodable($0) }) | ||
| case let encodable as Encodable: | ||
| try encodable.encode(to: encoder) | ||
| default: | ||
| let context = EncodingError.Context(codingPath: container.codingPath, debugDescription: "AnyEncodable value cannot be encoded") | ||
| throw EncodingError.invalidValue(value, context) | ||
| } | ||
| } | ||
|
|
||
| private func encode(nsnumber: NSNumber, into container: inout SingleValueEncodingContainer) throws { | ||
| switch Character(Unicode.Scalar(UInt8(nsnumber.objCType.pointee))) { | ||
| case "B": | ||
| try container.encode(nsnumber.boolValue) | ||
| case "c": | ||
| try container.encode(nsnumber.int8Value) | ||
| case "s": | ||
| try container.encode(nsnumber.int16Value) | ||
| case "i", "l": | ||
| try container.encode(nsnumber.int32Value) | ||
| case "q": | ||
| try container.encode(nsnumber.int64Value) | ||
| case "C": | ||
| try container.encode(nsnumber.uint8Value) | ||
| case "S": | ||
| try container.encode(nsnumber.uint16Value) | ||
| case "I", "L": | ||
| try container.encode(nsnumber.uint32Value) | ||
| case "Q": | ||
| try container.encode(nsnumber.uint64Value) | ||
| case "f": | ||
| try container.encode(nsnumber.floatValue) | ||
| case "d": | ||
| try container.encode(nsnumber.doubleValue) | ||
| default: | ||
| let context = EncodingError.Context(codingPath: container.codingPath, debugDescription: "NSNumber cannot be encoded because its type is not handled") | ||
| throw EncodingError.invalidValue(nsnumber, context) | ||
| } | ||
| } | ||
| } |
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