Primary constructor conversion fails when an argument is used in a method.

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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[severity:Other]
I was wondering how a primary constructor gets converted to a regular in case you are using its parameter in a method. Seems like it doesn't. Note that when you remove the usage of bar in the method the conversion works fine.

I guess generating a backing field would be a solution.

System.InvalidOperationException : GetCurrentNode returned null with the following node: bar - file SyntaxEditor.cs line 254
   at Roslyn.Utilities.Contract.Fail(String message,Int32 lineNumber,String filePath)
   at Microsoft.CodeAnalysis.Editing.SyntaxEditor.GetChangedRoot()
   at Microsoft.CodeAnalysis.CSharp.ConvertPrimaryToRegularConstructor.ConvertPrimaryToRegularConstructorCodeRefactoringProvider.<>c__DisplayClass2_0. <ConvertAsync>g__FixParameterAndBaseArgumentListIndentation|13()
   at async Microsoft.CodeAnalysis.CSharp.ConvertPrimaryToRegularConstructor.ConvertPrimaryToRegularConstructorCodeRefactoringProvider.ConvertAsync(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.ComputeOperationsAsync(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.ComputePreviewOperationsAsync(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.GetPreviewOperationsAsync(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.Editor.Implementation.Suggestions.SuggestedAction.GetPreviewOperationsAsync(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.Editor.Implementation.Suggestions.SuggestedAction.GetPreviewResultAsync(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.Editor.Implementation.Suggestions.SuggestedActionWithNestedFlavors.<>c__DisplayClass16_0. <GetPreviewAsync>b__0(<Unknown Parameters>)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.CodeAnalysis.Extensions.IExtensionManagerExtensions.PerformFunctionAsync[T](<Unknown Parameters>)

    internal class Foo(int bar)
    {
        public int Bar { get; private set; } = bar;

public void Baz()
        {
            Bar = bar;
        }
    }