thoughtbot/functionaljson-swift

Efficient JSON in Swift with Functional Concepts and Generics

This repo is the example code for the [blog post][]. [blog post]: http://robots.thoughtbot.com/efficient-json-in-swift-with-functional-concepts-and-generics

functionaljson-swift's Issues

Perform request issuse

Hi,
I have a problem. I cannot make this project working. I try to get a user from a web reguest and to do that, I am invoking this function:

performRequest(request: req) { (user) -> () in
println("user callback raised!")
}

But every time i try to build my code I get the following error:
/Users/SM/Downloads/FunctionalJSON-swift-d3fcf771c20813e57cb54472dd8c55ee33e87ae4/FunctionalJSON/ViewController.swift:19:9: Cannot convert the expression's type '(request: @lvalue NSURLRequest, (($T3) -> ()) -> ())' to type 'JSONDecodable'

Could you please help me?
Thanks!

Nested model parsing

I am trying to get nested model parsing to work, but without any success. The Xcode keeps hanging and crashing. :(

I tried to move the mapping block to separate class method like:

extension Location: JSONDecodable {
  static func create(lat: Double)(lon: Double) -> Location {
    return Location(lat: lat, lon: lon)
  }  

public static func mapper(d: JSONObject) -> Location? {
    return Location.create
        <^> d <|  "lat"
        <*> d <|  "lon"
  }
}

and then in parent model trying to parse it:

extension Post: JSONDecodable {
  static func create(id: Int)(subject: String)(location: Location) -> Post2 {
    return Post2(id: id, subject: subject, location: location)
  }

  public static func mapper(d: JSONObject) -> Post2? {
    return Post2.create
        <^> d <|  "id"
        <*> d <|  "subject"
        <*> (d <| "location") >>> Location.mapper
  }
}

after that when I hit Build, the SourceKit crashes, switfc compiler hangs and after a while, Xcode too (using Xcode 6.0.1)

Tests are not failing

I was curious about how the operator >|* works, so I went and tried breaking the tests. But to my surprise I wasn't able to. I even tried this:

func testBrokenTest() {
    assert("a" == "b")
}

So I took a look at the test settings in the default project, and instead of using assert, XCTest uses XCTAssert, and changing the previous example accordingly breaks the tests:

func testBrokenTest() {
    XCTAssert("a" == "b")
}

Changing all instances of assert for XCAssert allow the tests to fail when you change the operator >|* for >| in UserExtension.swift, and now I get it allows for optional values.

I would be happy to issue a pull request with the change. Also, amazing post, really answers many questions I had around functional programming and functional programming in Swift. Thanks!

License?

Tony, could you clarify what license this code is under?