Added code to templates to ensure correct generation of code for Swift3 (#5390)

* Added code to templates to ensure generation of code for Swift3 that builds on both Apple platforms and Linux. Fixed a bug in the Model decoders that prevented code from building for Linux

* Ran the script to generate the PetStore API

modules/swagger-codegen/src/main/resources/swift3/AlamofireImplementations.mustache

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 class AlamofireRequestBuilderFactory: RequestBuilderFactory {

modules/swagger-codegen/src/main/resources/swift3/Extensions.mustache

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire{{#usePromiseKit}}
 import PromiseKit{{/usePromiseKit}}
 

modules/swagger-codegen/src/main/resources/swift3/Models.mustache

@@ -70,7 +70,7 @@ class Decoders {
     static func decode<T>(clazz: T.Type, source: AnyObject, instance: AnyObject?) -> T {
         initialize()
         if T.self is Int32.Type && source is NSNumber {
-            return source.int32Value as! T;
+            return (source as! NSNumber).int32Value as! T;
         }
         if T.self is Int64.Type && source is NSNumber {
             return source.int64Value as! T;

modules/swagger-codegen/src/main/resources/swift3/api.mustache

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire{{#usePromiseKit}}
 import PromiseKit{{/usePromiseKit}}{{#useRxSwift}}
 import RxSwift{{/useRxSwift}}

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/APIs/FakeAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/AlamofireImplementations.swift

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 class AlamofireRequestBuilderFactory: RequestBuilderFactory {

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/Extensions.swift

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 extension Bool: JSONEncodable {

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/Models.swift

@@ -70,7 +70,7 @@ class Decoders {
     static func decode<T>(clazz: T.Type, source: AnyObject, instance: AnyObject?) -> T {
         initialize()
         if T.self is Int32.Type && source is NSNumber {
-            return source.int32Value as! T;
+            return (source as! NSNumber).int32Value as! T;
         }
         if T.self is Int64.Type && source is NSNumber {
             return source.int64Value as! T;

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/APIs/FakeAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import PromiseKit
 

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import PromiseKit
 

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import PromiseKit
 

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import PromiseKit
 

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/AlamofireImplementations.swift

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 class AlamofireRequestBuilderFactory: RequestBuilderFactory {

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/Extensions.swift

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import PromiseKit
 

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/Models.swift

@@ -70,7 +70,7 @@ class Decoders {
     static func decode<T>(clazz: T.Type, source: AnyObject, instance: AnyObject?) -> T {
         initialize()
         if T.self is Int32.Type && source is NSNumber {
-            return source.int32Value as! T;
+            return (source as! NSNumber).int32Value as! T;
         }
         if T.self is Int64.Type && source is NSNumber {
             return source.int64Value as! T;

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/APIs/FakeAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import RxSwift
 

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import RxSwift
 

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import RxSwift
 

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift

@@ -5,6 +5,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 import RxSwift
 

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/AlamofireImplementations.swift

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 class AlamofireRequestBuilderFactory: RequestBuilderFactory {

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/Extensions.swift

@@ -4,6 +4,7 @@
 // https://github.com/swagger-api/swagger-codegen
 //
 
+import Foundation
 import Alamofire
 
 extension Bool: JSONEncodable {

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/Models.swift

@@ -70,7 +70,7 @@ class Decoders {
     static func decode<T>(clazz: T.Type, source: AnyObject, instance: AnyObject?) -> T {
         initialize()
         if T.self is Int32.Type && source is NSNumber {
-            return source.int32Value as! T;
+            return (source as! NSNumber).int32Value as! T;
         }
         if T.self is Int64.Type && source is NSNumber {
             return source.int64Value as! T;