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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // | ||
| // ObjectMerger.swift | ||
| // MoreCodable | ||
| // | ||
| // Created by Tatsuya Tanaka on 20180302. | ||
| // Copyright © 2018年 tattn. All rights reserved. | ||
| // | ||
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| import Foundation | ||
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| public struct ObjectMerger { | ||
| private let encoder = DictionaryEncoder() | ||
| private let decoder = DictionaryDecoder() | ||
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| public init() {} | ||
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| public func merge<T: Decodable, A: Encodable, B: Encodable>(_ type: T.Type = T.self, _ aObject: A, _ bObject: B) throws -> T { | ||
| print(try encoder.encode(bObject)) | ||
| let dictionary = try encoder.encode(aObject) | ||
| .merging(try encoder.encode(bObject)) { left, _ in left } | ||
| return try decoder.decode(T.self, from: dictionary) | ||
| } | ||
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| public func merge<T: Decodable, A: Encodable, B: Encodable, C: Encodable>(_ type: T.Type = T.self, _ aObject: A, _ bObject: B, _ cObject: C) throws -> T { | ||
| let dictionary = try encoder.encode(aObject) | ||
| .merging(try encoder.encode(bObject)) { left, _ in left } | ||
| .merging(try encoder.encode(cObject)) { left, _ in left } | ||
| return try decoder.decode(T.self, from: dictionary) | ||
| } | ||
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| public func merge<T: Decodable, A: Encodable, B: Encodable, C: Encodable, D: Encodable>(_ type: T.Type = T.self, _ aObject: A, _ bObject: B, _ cObject: C, _ dObject: D) throws -> T { | ||
| let dictionary = try encoder.encode(aObject) | ||
| .merging(try encoder.encode(bObject)) { left, _ in left } | ||
| .merging(try encoder.encode(cObject)) { left, _ in left } | ||
| .merging(try encoder.encode(dObject)) { left, _ in left } | ||
| return try decoder.decode(T.self, from: dictionary) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // | ||
| // ObjectMergerTests.swift | ||
| // MoreCodableTests | ||
| // | ||
| // Created by Tatsuya Tanaka on 20180302. | ||
| // Copyright © 2018年 tattn. All rights reserved. | ||
| // | ||
|
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| import XCTest | ||
| import MoreCodable | ||
|
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| class ObjectMergerTests: XCTestCase { | ||
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| override func setUp() { | ||
| super.setUp() | ||
| } | ||
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| override func tearDown() { | ||
| super.tearDown() | ||
| } | ||
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| func testSimpleCase() throws { | ||
| struct APIResponse: Encodable { | ||
| let id: Int | ||
| let title: String | ||
| let foo: String | ||
| } | ||
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| struct APIResponse2: Encodable { | ||
| let tags: [String] | ||
| } | ||
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| struct Model: Decodable { | ||
| let id: Int | ||
| let title: String | ||
| let tags: [String] | ||
| } | ||
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| let response = APIResponse(id: 0, title: "Awesome article", foo: "bar") | ||
| let response2 = APIResponse2(tags: ["swift", "ios", "macos"]) | ||
| let model = try ObjectMerger().merge(Model.self, response, response2) | ||
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| XCTAssertEqual(model.id, response.id) | ||
| XCTAssertEqual(model.title, response.title) | ||
| XCTAssertEqual(model.tags, response2.tags) | ||
| } | ||
| } |