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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| // | ||
| // DecoderExtensions.swift | ||
| // web3swift-iOS | ||
| // | ||
| // Created by Dmitry on 28/10/2018. | ||
| // Copyright © 2018 Bankex Foundation. All rights reserved. | ||
| // | ||
|
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| import Foundation | ||
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| // Inspired by https://gist.github.com/mbuchetics/c9bc6c22033014aa0c550d3b4324411a | ||
|
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| struct JSONCodingKeys: CodingKey { | ||
| var stringValue: String | ||
|
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| init?(stringValue: String) { | ||
| self.stringValue = stringValue | ||
| } | ||
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| var intValue: Int? | ||
|
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| init?(intValue: Int) { | ||
| self.init(stringValue: "\(intValue)") | ||
| self.intValue = intValue | ||
| } | ||
| } | ||
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| extension KeyedDecodingContainer { | ||
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| func decode(_ type: Dictionary<String, Any>.Type, forKey key: K) throws -> Dictionary<String, Any> { | ||
| let container = try self.nestedContainer(keyedBy: JSONCodingKeys.self, forKey: key) | ||
| return try container.decode(type) | ||
| } | ||
|
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| func decodeIfPresent(_ type: Dictionary<String, Any>.Type, forKey key: K) throws -> Dictionary<String, Any>? { | ||
| guard contains(key) else { | ||
| return nil | ||
| } | ||
| return try decode(type, forKey: key) | ||
| } | ||
|
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| func decode(_ type: Array<Any>.Type, forKey key: K) throws -> Array<Any> { | ||
| var container = try self.nestedUnkeyedContainer(forKey: key) | ||
| return try container.decode(type) | ||
| } | ||
|
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| func decodeIfPresent(_ type: Array<Any>.Type, forKey key: K) throws -> Array<Any>? { | ||
| guard contains(key) else { | ||
| return nil | ||
| } | ||
| return try decode(type, forKey: key) | ||
| } | ||
|
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| func decode(_ type: Dictionary<String, Any>.Type) throws -> Dictionary<String, Any> { | ||
| var dictionary = Dictionary<String, Any>() | ||
|
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| for key in allKeys { | ||
| if let boolValue = try? decode(Bool.self, forKey: key) { | ||
| dictionary[key.stringValue] = boolValue | ||
| } else if let stringValue = try? decode(String.self, forKey: key) { | ||
| dictionary[key.stringValue] = stringValue | ||
| } else if let intValue = try? decode(Int.self, forKey: key) { | ||
| dictionary[key.stringValue] = intValue | ||
| } else if let doubleValue = try? decode(Double.self, forKey: key) { | ||
| dictionary[key.stringValue] = doubleValue | ||
| } else if let nestedDictionary = try? decode(Dictionary<String, Any>.self, forKey: key) { | ||
| dictionary[key.stringValue] = nestedDictionary | ||
| } else if let nestedArray = try? decode(Array<Any>.self, forKey: key) { | ||
| dictionary[key.stringValue] = nestedArray | ||
| } | ||
| } | ||
| return dictionary | ||
| } | ||
| } | ||
|
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| extension UnkeyedDecodingContainer { | ||
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| mutating func decode(_ type: Array<Any>.Type) throws -> Array<Any> { | ||
| var array: [Any] = [] | ||
| while isAtEnd == false { | ||
| if let value = try? decode(Bool.self) { | ||
| array.append(value) | ||
| } else if let value = try? decode(Double.self) { | ||
| array.append(value) | ||
| } else if let value = try? decode(String.self) { | ||
| array.append(value) | ||
| } else if let nestedDictionary = try? decode(Dictionary<String, Any>.self) { | ||
| array.append(nestedDictionary) | ||
| } else if let nestedArray = try? decode(Array<Any>.self) { | ||
| array.append(nestedArray) | ||
| } | ||
| } | ||
| return array | ||
| } | ||
|
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| mutating func decode(_ type: Dictionary<String, Any>.Type) throws -> Dictionary<String, Any> { | ||
|
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| let nestedContainer = try self.nestedContainer(keyedBy: JSONCodingKeys.self) | ||
| return try nestedContainer.decode(type) | ||
| } | ||
| } |
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