The project I am currently developing could use this library very much, but my project uses Swift Package Manager. It would be nice if we could add support for SwiftPM into this package.

Then sounds like it will just return a Promise. Tap is what ruby is using now: http://ruby-doc.org/core-2.3.0/Object.html#method-i-tap

Use Then with Xcode14, and the code prompts that there is something wrong.

XCode9.3 (Swift4.1) 사용중입니다.
carthage를 이용해 github "devxoul/Then"를 설치했는데 아래와 같은 오류가 뜹니다.

error: The following binaries use incompatible versions of Swift:
/Users/gns/Library/Developer/Xcode/DerivedData/CopyPodcasts-edkbnveraiflpmhipjhtkxsbijgx/Build/Products/Debug-iphoneos/CopyPodcasts.app/CopyPodcasts
/Users/gns/Library/Developer/Xcode/DerivedData/CopyPodcasts-edkbnveraiflpmhipjhtkxsbijgx/Build/Products/Debug-iphoneos/CopyPodcasts.app/Frameworks/Then.framework/Then

$carthage update --platform macOS
results in:

*** Skipped building Then due to the error:
Dependency "Then" has no shared framework schemes for any of the platforms: Mac

If you believe this to be an error, please file an issue with the maintainers at https://github.com/devxoul/Then/issues/new

Using carthage 0.34, Swift 5, xcode 10.2

What am I missing? Why can't I use with for everything? I have not run into a situation where with is not working... Why have both then and with?

thx!

Maybe, we could add many extensions, eg:

extension Bool: Then {}
extension Int: Then {}
extension Optional: Then {}

Hi, I just make my Configurable and realize you're 1 step before me 😄

I see that this pattern is now widely adopted in many projects, like Dip, ... for the compensation of Builder pattern. Like Dip, I have Initable which works on init as well, good for basic usage

One thing you can improve is to leverage @noescape http://nshint.io/blog/2015/10/23/noescape-attribute/

First think I want to say: Thank you! It's awesome.

My trouble is can't use 'do' block. The compile show error "Expected member name following.". Example:

NSUserDefaults.standardUserDefaults().do({
// Do anything with UserDefaults
})

Motivation

To mutate some deeply nested value types, we have to write the whole key path at least twice:

some.very[deep].structure.someProperty = someValue
some.very[deep].structure.anotherProperty = anotherValue

// or with Then:

some.very[deep].structure = some.very[deep].structure.with {
    $0.someProperty = someValue
    $0.anotherProperty = anotherValue
}

extension Then {
    public mutating func mutate(_ block: (inout Self) throws -> Void) rethrows {
        try block(&self)
    }
}

some.very[deep].structure.mutate {
    $0.someProperty = someValue
    $0.anotherProperty = anotherValue
}

xcode不能自动补全提示

ERROR ITMS-90056: "This bundle Payload/X.app/Frameworks/Then.framework is invalid. The Info.plist file is missing the required key: CFBundleVersion."

I got compiling error Cannot convert value of type '_ -> ()' to expected argument type 'inout WKWebView -> Void' with this code

webView.then {
    $0.navigationDelegate = self
}

webView.then {
    $0.navigationDelegate = self
    $0.tag = 1
}

Instead of creating a new instance for a view, is there a possibility to fetch the existing instance and set attributes to it? I want to update attributes initially for IBOutlets views.

In the new Xcode (12) there is a SwiftPM import warning.

In order to fix I think all you have todo is bump the version to iOS 9 in the Package.swift file.
If you are wanting to maintain backwards support I think you can make a new [email protected]

KeychainAccess did something similar.

*** Skipped building Then due to the error:
Dependency "Then" has no shared framework schemes

Please follow this guide to fix -> https://github.com/Carthage/Carthage#share-your-xcode-schemes

Hi,

Apple is enforcing every app and SDK provider to provide privacy manifest in their SDK, would you please let me know is there any plan for the support?

https://developer.apple.com/support/third-party-SDK-requirements/

Seems like I cannot use Then on struct type:

struct SomeStruct {
    var name: String = ""
}

extension SomeStruct : Then {}

var aStruct = SomeStruct().then {
    $0.name = "123"
}

Has Then been abandoned?  It doesn't appear @devxoul has responded to any issues or PRs, or made any code changes since Sept 2019.  And basically every comment he made before than was highly resistant to making any changes or accommodations for the devs who rely on Then.

Is it time for someone else to take over the project?  Is there someone else who is already maintaining an updated fork who's willing to take up the mantle of maintaining the community, and who welcomes us all switching over to his/her fork?

Side-note: I grew tired of some of the issues with Then a while back and wrote my own stab from scratch at solving this problem— I chose to go with a free function approach that's closer to the with keyword in Python, JavaScript, Visual Basic, Object Pascal, Delphi and using in C#, and which seems to be more idiomatic Swift.  I also care about making sure my libraries work in every build toolchain and environment (SPM, CocoaPods, Carthage, Xcode project embedding, etc.); can solve any reasonable user-requested problem (@discardableResult, arbitrary return value, @inlinable, etc.); and can be used freely by everyone (completely copyright-free public domain, no restrictions or attribution needed).  My recently-uploaded library is called With.

show the error type, can't

_ = UIView().then {
$0.tag = 1
}

UIView().then {
$0.tag = 1
}

如果是下面的，有很多警告

when I use it with cocoapods ,I will get the issues "Command /bin/sh failed with exit code 1", but not
appear other what like "then".it is my pods file:

platform :ios, '9.0'
use_frameworks!

target 'MapInSwift' do
pod 'Alamofire'
pod 'SwiftyJSON'
pod 'Then', '~> 2.1'
end

if i remove the line with "pod 'Then', '~> 2.1'", i will get no issue

I fand the solution on the google but no way is fit me.If i need particular setting with Xcode(xcode 8.0; swift 3.0)

If I create a UICollectionView with upside code, it works good.
However, I create UICollectionView with downside code, it doesn`t show cells.
Others code all same.

What's the problem??

lazy var tableView: UITableView = {
let tabView =UITableView.init(frame: .zero, style: .plain)
tabView.backgroundColor = UIColor.white
tabView.dataSource = self
tabView.delegate = self
return tabView
}()
I often use lazy loading， and，how to write by Then。Can you give me a test code。

Problem

The code below works in Then 1.0.1 but doesn't work in 1.0.2.

func tempt(label: UILabel) {
    label.text = "I💞Then"
}

let label1 = UILabel()
tempt(label1) // Works fine definitely
UILabel().then(tempt) // Error: Cannot convert value of type '(UILabel) -> ()' to expected argument type 'inout UILabel -> Void'

func temptInOut(inout label: UILabel) {
    label.text = "I💞Then"
}

UILabel().then(temptInOut) // Works fine

let label2 = UILabel()
temptInOut(label2) // Error: Cannot convert value of type 'UILabel' to expected argument type 'inout UILabel'
temptInOut(&label2) // Another Error: Cannot pass immutable value as inout argument: 'label2' is a 'let' constant

var label3 = UILabel()
temptInOut(&label3) // Works fine but seems ugly.

Nice idea!

I personally suggest a different keyword: .with { ... }

UILabel().with {
    $0.textColor = .blackColor() 
} 

I can't seem to access class variables in my then block:

For example

class GradientView {
   let colors = ...
   lazy var gradientLayer = CAGradientLayer().then {
       $0.colors = self.colors // also tried colors
   }
}

class GradientView {
   let colors = ...
   lazy var gradientLayer: CAGradientLayer = {
       let layer = CAGradientLayer()
       layer.colors = self.colors
       return layer
   }()
}

xcode 11
when run, failed

"Value of type 'UILabel' has no member 'then'"

Hi everyone!
I'd like to contribute to this repo and today I've not been able to push my branch, I got this message:
remote: Permission to goktugyil/EZSwiftExtensions.git denied to vilapuigvila.
fatal: unable to access 'https://github.com/goktugyil/EZSwiftExtensions.git/': The requested URL returned error: 403
Thanks in advance.

why not code hinting by xcode while use Then

I want use then in global

...but works fine with CALayer, NSAttributesString subclasses

I think this library and pattern is 'swifty' enough to be part of Swift-lang itself!

Perhaps the syntax would change to be like an auto closure.
I speculate the compiler could do something with value-types being treated as immutable after being returned in some cases.

Because the repository doesn't contain a .xcodeproj, Carthage is unable to build the framework, failing silently.

Output when running carthage update --platform iOS --no-use-binaries with a clean workspace:

*** Cloning Then
*** Checking out Then at "2.2.0"
*** xcodebuild output can be found in /var/folders/s0/tjb6sjmd3914dzy5mncptr700000gn/T/carthage-xcodebuild.3bko6H.log

Just wondering if anyone else is having problems with autocompletion inside then closure..
It seems to work every time when using with local variables inside functions, but with class/struct level variables it simply does not autocomplete.

I'm using the Swift 2.3 version with Xcode 8 but the problem persists...

(I know this is probably a SourceKit thing, but just wondering if is happening to anyone else)

Thanks for good work. Another swift version has published, please support as soon as possible?