Format document hangs indefinitely

Right clicking on a script and selecting format document sometimes stalls out and all you get is the text “Formatting current document…” in the status bar.

System Details

• Operating system name and version:
• VS Code version: 1.13.0
• PowerShell extension version: 1.3.1
• Output from $PSVersionTable: Name Value

---

PSVersion 5.1.15063.296 PSEdition Desktop PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…} BuildVersion 10.0.15063.296 CLRVersion 4.0.30319.42000 WSManStackVersion 3.0 PSRemotingProtocolVersion 2.3 SerializationVersion 1.1.0.1

Issue Description

I am experiencing a problem with…

Attached Logs

[0:2:50] Language server starting… powershell.exe started – pid: 7396 exe: C:\WINDOWS\Sysnative\WindowsPowerShell\v1.0\powershell.exe args: C:\Users\matt.vscode\extensions\ms-vscode.powershell-1.3.1\scripts\Start-EditorServices.ps1 -EditorServicesVersion ‘1.3.1’ -HostName ‘Visual Studio Code Host’ -HostProfileId ‘Microsoft.VSCode’ -HostVersion ‘1.3.1’ -BundledModulesPath ‘C:\Users\matt.vscode\extensions\ms-vscode.powershell-1.3.1\modules’ -EnableConsoleRepl -LogLevel ‘Normal’ -LogPath ‘C:\Users\matt.vscode\extensions\ms-vscode.powershell-1.3.1\logs\1497067370-99efb25e-e506-4ad6-9e6d-0a28c6750e141497064145804\EditorServices.log’ -SessionDetailsPath ‘C:\Users\matt.vscode\extensions\ms-vscode.powershell-1.3.1\sessions\PSES-VSCode-16500-919759’ -FeatureFlags @()

[0:2:58] Language server started. {“debugServicePort”:23032,“status”:“started”,“channel”:“tcp”,“languageServicePort”:26349} Connecting to language service on port 26349…

Language service connected.

[daviwil]

That’s the fix, I took out this line:

    throw new InvalidMattException();

[daviwil]

Hmmm, maybe both of you are seeing a manifestation of #857. This causes the language server to hang once it happens. I think I just fixed it, might ship an update today or tomorrow!