Version Used: Compiler version: '3.9.0-1.20521.14 (182c1e3)'. Language version: 9.0.
Steps to Reproduce:
With the cursor at the location of $$ below, type +=
using System;
AppDomain.CurrentDomain.AssemblyResolve $$
Visual Studio will offer to create a method for event handler:
Press tab to accept adding the new method.
Expected Behavior: A local function is created for the event handler.
Actual Behavior: A NullReferenceException is thrown:
System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.CodeAnalysis.CodeGeneration.CodeGenerator.AddMethodDeclaration[TDeclarationNode](TDeclarationNode destination, IMethodSymbol method, Workspace workspace, CodeGenerationOptions options)
at Microsoft.CodeAnalysis.Editor.CSharp.EventHookup.EventHookupCommandHandler.AddGeneratedHandlerMethodToSolution(SemanticDocument document, String eventHandlerMethodName, SyntaxAnnotation plusEqualsTokenAnnotation, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Editor.CSharp.EventHookup.EventHookupCommandHandler.CreateSolutionWithEventHandler(Document document, String eventHandlerMethodName, Int32 position, Int32& plusEqualTokenEndPosition, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Editor.CSharp.EventHookup.EventHookupCommandHandler.GenerateAndAddEventHandler(ITextView textView, ITextBuffer subjectBuffer, String eventHandlerMethodName, Action nextHandler, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Editor.CSharp.EventHookup.EventHookupCommandHandler.HandleTabWorker(ITextView textView, ITextBuffer subjectBuffer, Action nextHandler, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Editor.CSharp.EventHookup.EventHookupCommandHandler.ExecuteCommand(TabKeyCommandArgs args, Action nextHandler, CommandExecutionContext cotext)
at Microsoft.VisualStudio.UI.Text.Commanding.Implementation.EditorCommandHandlerService.<>c__DisplayClass14_1`1.<ExecuteStartingAtIndex>b__0()
at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.CallExtensionPoint(Object errorSource, Action call, Predicate`1 exceptionFilter)
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)
Maybe related, but not quite the same: #44425 #44387 #43878
Version Used: Compiler version: '3.9.0-1.20521.14 (182c1e3)'. Language version: 9.0.
Steps to Reproduce:
With the cursor at the location of
$$below, type+=Visual Studio will offer to create a method for event handler:
Press tab to accept adding the new method.
Expected Behavior: A local function is created for the event handler.
Actual Behavior: A
NullReferenceExceptionis thrown:Maybe related, but not quite the same: #44425 #44387 #43878