Add placeholder code for required parameters

[jagdishjadeja]

can we add @required code when user types a widget like icon property for IconButton
or add whole Builder function placeholder code for widgets like FutureBuilder or ListView.Builder ?
inserting @required parameters code will make life easier

[DanTup]

Because there are some behaviour changes, this feature will initially ship behind a flag (dart.previewNewCompletionPlaceholders) for the next release. It'll probably become default in the following release. Please try it out and let me know how it works for you (I'll be producing a beta build later today or tomorrow).

[jagdishjadeja]

so when it is coming ?

[DanTup]

@jagdishjadeja there's a beta build here:

https://github.com/Dart-Code/Dart-Code/releases/tag/v3.7.0-beta.1

You'll need to set "dart.previewNewCompletionPlaceholders": true in your settings to get the new behaviour. If you try it out, let me know how it goes!

[jagdishjadeja]

@DanTup got errors

28-11-2019 22:01:43 - Microsoft VSIX Installer
28-11-2019 22:01:43 - -------------------------------------------
28-11-2019 22:01:43 - vsixinstaller.exe version:
28-11-2019 22:01:43 - 16.3.2099
28-11-2019 22:01:43 - -------------------------------------------
28-11-2019 22:01:43 - Command line parameters:
28-11-2019 22:01:43 - C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service\VSIXInstaller.exe,C:\Users\DROGON\Downloads\dart-code-3.7.0-beta.1.vsix
28-11-2019 22:01:43 - -------------------------------------------
28-11-2019 22:01:43 - Microsoft VSIX Installer
28-11-2019 22:01:43 - -------------------------------------------
28-11-2019 22:01:44 - Found setup instance 9f7728f8 but not in launchable state.
28-11-2019 22:01:44 - Initializing Install...
28-11-2019 22:01:45 - Microsoft.VisualStudio.ExtensionManager.InvalidExtensionManifestException: Element 'Identity' has invalid value for attribute 'Version' ---> System.FormatException: Input string was not in a correct format.
   at System.Version.VersionResult.SetFailure(ParseFailureKind failure, String argument)
   at System.Version.TryParseComponent(String component, String componentName, VersionResult& result, Int32& parsedComponent)
   at System.Version.TryParseVersion(String version, VersionResult& result)
   at System.Version.Parse(String input)
   at System.Version..ctor(String version)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionImpl.<>c.<ExtractManifestData>b__67_1(String s)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionImpl.VerifyStringValue[T](String value, ErrorInfo info, Func`2 selector, Boolean isRequired, Int32 maxLength, T defaultValue)
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)
   --- End of inner exception stack trace ---
   at Microsoft.VisualStudio.ExtensionManager.ExtensionImpl.VerifyStringValue[T](String value, ErrorInfo info, Func`2 selector, Boolean isRequired, Int32 maxLength, T defaultValue)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionImpl.ExtractManifestData(PackageManifest manifest)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionImpl.ReadPackageManifest(XmlReader reader)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionImpl.ReadManifest(Stream manifestStream)
   at Microsoft.VisualStudio.ExtensionManager.InstallableExtensionImpl.ReadVSIXManifestFromPackage(Stream stream, CultureInfo preferredCulture)
   at Microsoft.VisualStudio.ExtensionManager.InstallableExtensionImpl..ctor(String path, CultureInfo preferredCulture)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.CreateInstallableExtension(String extensionPath, CultureInfo preferredCulture)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.CreateInstallableExtension(String extensionPath)
   at VSIXInstaller.ExtensionService.GetInstallableData(String vsixPath, String extensionPackParentName, Boolean isRepairSupported, IStateData stateData, IEnumerable`1& skuData)
   at VSIXInstaller.ExtensionPackService.IsExtensionPack(IStateData stateData, Boolean isRepairSupported)
   at VSIXInstaller.ExtensionPackService.ExpandExtensionPackToInstall(IStateData stateData, Boolean isRepairSupported)
   at VSIXInstaller.App.Initialize(Boolean isRepairSupported)
   at VSIXInstaller.App.Initialize()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()

[DanTup]

@jagdishjadeja you can't just double-click on the vsix - that'll try to open it in Visual Studio (proper). I don't know why they made it this way, but they did :)

On the link above there are some instructions for installing (and there are more detailed instructions here) :-)

[jagdishjadeja]

not sure then whats thats usage

[DanTup]

@jagdishjadeja I'm not sure I understand. There are instructions here for how to install the VSIX (you run the Extension: Install from VSIX command in VS Code, and then browse for the vsix file).

[jagdishjadeja]

I have got it I was just wondering why they made extensions that way

[DanTup]

I don't know - I guess it seemed like a convenient file format to use. Maybe in a future Visual Studio update it will learn what VS Code extensions look like and automatically delegate to VS Code (similar to how its version switcher works), I don't know. It's definitely annoying though - seems like everyone tries to install by double-clicking the first time (I did!) 😞

[jagdishjadeja]

Can I get some instructions on how to use this feature?
I have added "dart.previewNewCompletionPlaceholders": true,
but feels like same things

[DanTup]

Did you click the Reload button after installing the extension? If you click Extensions on the side bar, do you see the 3.7.0-beta version?

If it's working, you should get placeholders for @required arguments (see screenshots in the release notes at https://dartcode.org/releases/v3-7/#preview-placeholders-for-required-arguments).

[jagdishjadeja]

yes working checking out new feature