Autocompletion of UIKit

[LinusU]

I'm not 100% sure that it's specifically UIKit that is the problem, but I'm having problems with autocomplete not giving any relevant suggestions e.g. when writing self. inside a class that inherits from e.g. UIView.

Unfortunately, this is the majority of my code so I'm currently coding without proper autocompletion 😱

I'd be happy to help in any way I can, be that more investigation, or getting my hands dirty with the code 👍

[vknabel]

@LinusU actually this affects all third party APIs. Only your own code will be autocompleted.

I will have a deeper look on the current state of possibilities and report it in here.

[vknabel]

@LinusU within the latest commit, I could make autocompletion for AppKit work. If you can make compilation of a single swift file which uses UIKit work, we could theoretically support it in here. The problems are the different target and SDK.

Then we would need to slightly refactor loadArgsImportPaths to be configurable and we could ship it. (Maybe I will release the AppKit and fixes release and thereafter the UIKit release)

[LinusU]

Awesome 👍

I'm currently not using swift build directly, but are using xcodebuild together with a generated Xcode-project. Here is the setup: https://github.com/LinusU/Soon

You can make it print the swiftc invocations, so I might be able to narrow everything down to a single call to compile one small file.

raw invocation:

cd /Users/linus/coding/Soon
export DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Users/linus/.cargo/bin:/usr/local/opt/php55/bin:node_modules/.bin:/Users/linus/.cargo/bin:/Users/linus/.cargo/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/MacGPG2/bin:/opt/X11/bin"
export SDKROOT=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -incremental -module-name Soon -Onone -enforce-exclusivity=checked -DDEBUG -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk -target arm64-apple-ios11.0 -g -Xfrontend -serialize-debugging-options -embed-bitcode-marker -enable-testing -Xfrontend -report-errors-to-debugger -swift-version 4 -I /Users/linus/coding/Soon/build/Debug-iphoneos -F /Users/linus/coding/Soon/build/Debug-iphoneos -F /Users/linus/coding/Soon/Carthage/Build/iOS -c -j4 /Users/linus/coding/Soon/Sources/AppDelegate.swift /Users/linus/coding/Soon/Sources/Pages/Main.swift /Users/linus/coding/Soon/Sources/Stores/Todo.swift -output-file-map /Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Objects-normal/arm64/Soon-OutputFileMap.json -parseable-output -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Objects-normal/arm64/Soon.swiftmodule -Xcc -I/Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Soon-generated-files.hmap -Xcc -I/Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Soon-own-target-headers.hmap -Xcc -I/Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Soon-all-target-headers.hmap -Xcc -iquote -Xcc /Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Soon-project-headers.hmap -Xcc -I/Users/linus/coding/Soon/build/Debug-iphoneos/include -Xcc -I/Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/DerivedSources/arm64 -Xcc -I/Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/DerivedSources -Xcc -DDEBUG=1 -emit-objc-header -emit-objc-header-path /Users/linus/coding/Soon/build/Soon.build/Debug-iphoneos/Soon.build/Objects-normal/arm64/Soon-Swift.h -Xcc -working-directory/Users/linus/coding/Soon

[LinusU]

I've managed to narrow it down to this quite simple invocation:

swiftc -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk -target arm64-apple-ios11.0 -swift-version 4 main.swift

This is my main.swift, just to test:

import UIKit

class TestButton: UIButton {
    var testString = "Test"
}

It seems like -sdk can be specified multiple times, so maybe it's just a matter of adding that path as well? 🙌

[vknabel]

@LinusU Hi I got working autocompletion for UIKit 🎉

In order to get autocompletion for UIKit, you need to add "sde.sourcekit.compilerOptions": ["-target", "arm64-apple-ios11.0"] to the workspace settings and restart your vscode window.

Could you try it out before I publish it?
vscode-swift-development-environment-2.2.0.vsix.zip

[LinusU]

Awesome! It works!!

Just found one small issue, that is probably not related though: #9

[vknabel]

Great to hear! I just released the 2.2.0 update including this change!
Thank you for being such a great help.

[LinusU]

No problem at all, thank you for the incredible work 🚀