AlexanderNey

infix operator >>> { precedence 50 associativity left }

public func >>> <A,B,C>(left: A throws -> B, right: B throws -> C) -> (A throws -> C) {
    return { (parameter: A) throws -> C in
        return try right(left(parameter))
    }
}

let data = ...

AlexanderNey

func combine <A,B,C>(first: A throws -> B, _ second: B throws -> C) -> (A throws -> C) {
    return { (parameter: A) throws -> C in
        let finalResult = try second(first(parameter))
        return finalResult
    }
}

let data = //... the NSData representing the json

let parseAndValidate = combine(parseJSONFromNSData, validateJSONResponse)

AlexanderNey

func unmarshalJSON<T : Unmarshallable>(type: T.Type)(json: JSON) throws -> T { ... }

let handleResponse = combine(combine(parseJSONFromNSData, validateJSONResponse), unmarshalJSON(Model.self))

AlexanderNey

// Function might throw errors like this:
func parseJSONFromNSData(data: NSData) throws -> JSON {
    // Try to parse but fails ...
    throw JSONParseError.InvalideJSON
}

func handleResponse<T : Unmarshallable>(data: NSDate) -> T {

    let data = ("{'somejson':true'}" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!
    

AlexanderNey

enum JSONParseError : ErrorType {
    case InvalideJSON
    case UnexpectedCharacter(line: Int, column: Int)
}

enum ServerResponseError : ErrorType {
    case InvalidResponse
    case ErrorResponse(message: String)
}

AlexanderNey

func parseJSONFromNSData(data: NSData) -> JSON { ... }

func validateJSONResponse(json: JSON) -> (JSON, NSError?) { ... }

func unmarshalJSON<T : JSONUnmarshallable>(json: JSON, type: T.Type) -> T { ... }

AlexanderNey

//
//  LimitOperator.swift
//
//  Created by Alexander Ney on 22/06/2014.
//  Copyright (c) 2014 Alexander Ney. All rights reserved.
//


// Lower limit operator
operator infix |- {associativity right}

AlexanderNey

//
//  OptionalOperators.swift
//
//  Created by Alexander Ney on 22/06/2014.
//  Copyright (c) 2014 Alexander Ney. All rights reserved.
//



// Null Coalescing Operator

AlexanderNey

//
//  String+RegularExpression.swift
//
//  Created by Alexander Ney on 15/06/2014.
//  Copyright (c) 2014 Alexander Ney. All rights reserved.
//

import Foundation