0001    //
0002    //  WrapMiddleware.swift
0003    //  Kunugi
0004    //
0005    //  Created by ito on 1/3/16.
0006    //  Copyright © 2016 Yusuke Ito. All rights reserved.
0007    //
0008    
0009    public protocol WrapMiddleware
Application.swift:10
    var wrap: [WrapMiddleware] { get }
WrapMiddleware.swift:14
public extension WrapMiddleware {: MiddlewareHandleable {
0010        func handle
WrapMiddleware.swift:20
            return try self.handle(ctx, yieldNext: {(ctx: ContextBox, @noescape yieldNext: () throws -> MiddlewareResult) throws -> MiddlewareResult
0011        func genHandler
Application.swift:21
                current = GenericMiddleware(handler: m.genHandler(current))(inner: MiddlewareType) -> (ContextBox throws -> MiddlewareResult)
0012    }
0013    
0014    public extension WrapMiddleware {
0015        func genHandler(inner: MiddlewareType) -> (ContextBox throws -> MiddlewareResult) {
0016            return { ctx in
0017                if self.shouldHandle(ctx) == false {
0018                    return try inner.handleIfNeeded(ctx)
0019                }
0020                return try self.handle(ctx, yieldNext: {
0021                    return try inner.handleIfNeeded(ctx)
0022                })
0023            }
0024        }
0025        
0026        func handle(ctx: ContextBox,  @noescape yieldNext: () throws -> MiddlewareResult ) throws -> MiddlewareResult {
0027            return try yieldNext()
0028        }
0029    }
0030