Title: Latest PowerShell build from main crashes on property completion · Issue #25205 · PowerShell/PowerShell · GitHub
Open Graph Title: Latest PowerShell build from main crashes on property completion · Issue #25205 · PowerShell/PowerShell
X Title: Latest PowerShell build from main crashes on property completion · Issue #25205 · PowerShell/PowerShell
Description: Prerequisites Write a descriptive title. Make sure you are able to repro it on the latest released version Search the existing issues. Refer to the FAQ. Refer to Differences between Windows PowerShell 5.1 and PowerShell. Steps to reprodu...
Open Graph Description: Prerequisites Write a descriptive title. Make sure you are able to repro it on the latest released version Search the existing issues. Refer to the FAQ. Refer to Differences between Windows PowerSh...
X Description: Prerequisites Write a descriptive title. Make sure you are able to repro it on the latest released version Search the existing issues. Refer to the FAQ. Refer to Differences between Windows PowerSh...
Opengraph URL: https://github.com/PowerShell/PowerShell/issues/25205
X: @github
Domain: github.com
{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Latest PowerShell build from main crashes on property completion","articleBody":"### Prerequisites\n\n- [x] Write a descriptive title.\n- [x] Make sure you are able to repro it on the [latest released version](https://github.com/PowerShell/PowerShell/releases)\n- [x] Search the existing issues.\n- [x] Refer to the [FAQ](https://github.com/PowerShell/PowerShell/blob/master/docs/FAQ.md).\n- [x] Refer to [Differences between Windows PowerShell 5.1 and PowerShell](https://learn.microsoft.com/powershell/scripting/whats-new/differences-from-windows-powershell).\n\n### Steps to reproduce\n\nTab complete following line:\n```powershell\n$x = Get-Random; $x = $x.Where{$_.\n```\n\n### Expected behavior\n\n```console\nShould not crash.\n```\n\n### Actual behavior\n\n```console\nPowerShell process abruptly terminates.\n```\n\n### Partial call-stack\n\n```console\n at System.Management.Automation.TypeInferenceVisitor.GetExpressionType(System.Management.Automation.Language.ExpressionAst, Boolean)\n at System.Management.Automation.TypeInferenceVisitor.InferTypesFrom(System.Management.Automation.Language.MemberExpressionAst)\n at System.Management.Automation.TypeInferenceVisitor.InferTypeFrom(System.Management.Automation.Language.VariableExpressionAst, System.Collections.Generic.List`1\u003cSystem.Management.Automation.PSTypeName\u003e)\n at System.Management.Automation.TypeInferenceVisitor.System.Management.Automation.Language.ICustomAstVisitor.VisitVariableExpression(System.Management.Automation.Language.VariableExpressionAst)\n at System.Management.Automation.TypeInferenceVisitor.InferTypeFrom(System.Management.Automation.Language.VariableExpressionAst, System.Collections.Generic.List`1\u003cSystem.Management.Automation.PSTypeName\u003e)\n at System.Management.Automation.TypeInferenceVisitor.System.Management.Automation.Language.ICustomAstVisitor.VisitVariableExpression(System.Management.Automation.Language.VariableExpressionAst)\n at System.Management.Automation.AstTypeInference.InferTypeOf(System.Management.Automation.Language.Ast, System.Management.Automation.TypeInferenceContext, System.Management.Automation.TypeInferenceRuntimePermissions)\n at System.Management.Automation.CompletionCompleters.CompleteMember(System.Management.Automation.CompletionContext, Boolean, Int32 ByRef)\n at System.Management.Automation.CompletionAnalysis.GetResultHelper(System.Management.Automation.CompletionContext, Int32 ByRef, Int32 ByRef)\n at System.Management.Automation.CompletionAnalysis.GetResults(System.Management.Automation.PowerShell, Int32 ByRef, Int32 ByRef)\n at System.Management.Automation.CommandCompletion.CompleteInputImpl(System.Management.Automation.Language.Ast, System.Management.Automation.Language.Token[], System.Management.Automation.Language.IScriptPosition, System.Collections.Hashtable)\n at DynamicClass.CallSite.Target(System.Runtime.CompilerServices.Closure, System.Runtime.CompilerServices.CallSite, System.Type, System.String, Int32, System.Collections.Hashtable)\n at System.Dynamic.UpdateDelegates.UpdateAndExecute4[[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int32, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.Runtime.CompilerServices.CallSite, System.__Canon, System.__Canon, Int32, System.__Canon)\n at System.Management.Automation.Interpreter.DynamicInstruction`5[[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int32, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Run(System.Management.Automation.Interpreter.InterpretedFrame)\n at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(System.Management.Automation.Interpreter.InterpretedFrame)\n at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(System.Management.Automation.Interpreter.InterpretedFrame)\n at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(System.Management.Automation.Interpreter.InterpretedFrame)\n at System.Management.Automation.Interpreter.Interpreter.Run(System.Management.Automation.Interpreter.InterpretedFrame)\n at System.Management.Automation.Interpreter.LightLambda.RunVoid1[[System.__Canon, System.Private.CoreLib, Version=10.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.__Canon)\n at System.Management.Automation.PSScriptCmdlet.RunClause(System.Action`1\u003cSystem.Management.Automation.Language.FunctionContext\u003e, System.Object, System.Object)\n at System.Management.Automation.CommandProcessorBase.Complete()\n at System.Management.Automation.CommandProcessorBase.DoComplete()\n at System.Management.Automation.Internal.PipelineProcessor.DoCompleteCore(System.Management.Automation.CommandProcessorBase)\n at System.Management.Automation.Internal.PipelineProcessor.SynchronousExecuteEnumerate(System.Object)\n at System.Management.Automation.Runspaces.LocalPipeline.InvokeHelper()\n at System.Management.Automation.Runspaces.LocalPipeline.InvokeThreadProc()\n at System.Management.Automation.Runspaces.PipelineThread.WorkerProc()\n at System.Threading.Thread+StartHelper.RunWorker()\n at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)\n```\n\n### Environment data\n\n```powershell\nName Value\n---- -----\nPSVersion 7.6.0-preview.3\nPSEdition Core\nGitCommitId 7.6.0-preview.3-50-geef334de1b0f648512859bd032356f9c8df7cb91\nOS Microsoft Windows 10.0.19045\nPlatform Win32NT\nPSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}\nPSRemotingProtocolVersion 2.3\nSerializationVersion 1.1.0.1\nWSManStackVersion 3.0\n```\n\n### 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