René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Get-Help for dynamic function created from ScriptBlock does not work.","articleBody":"Reproducible on 6.1.0 and on master b525b1f0bde65f0c59ccd9bbfe25d1459fcff1a3\r\n\r\nSteps to reproduce\r\n------------------\r\n\r\n```powershell\r\n$sb = {\r\n    \u003c#\r\n    .SYNOPSIS\r\n    Sample synopsis.\r\n    #\u003e    \r\n    process { }\r\n}\r\n$str = [String]$sb\r\n\r\nSet-Item -Path function:private:FunctionFromString -Value $str\r\n(Get-Help FunctionFromString).Synopsis\r\n\r\nSet-Item -Path function:private:FunctionFromScriptBlock -Value $sb\r\n(Get-Help FunctionFromScriptBlock).Synopsis\r\n```\r\n\r\nExpected behavior\r\n-----------------\r\n\r\n```none\r\nSample synopsis.\r\n\r\nSample synopsis.\r\n```\r\n\r\nActual behavior\r\n---------------\r\n\r\n```none\r\nSample synopsis.\r\n\r\nFunctionFromScriptBlock\r\n```\r\n\r\nEnvironment data\r\n----------------\r\n\r\n\u003c!-- provide the output of $PSVersionTable --\u003e\r\n\r\n```powershell\r\n\u003e $PSVersionTable\r\n\r\nName                           Value\r\n----                           -----\r\nPSVersion                      6.1.0\r\nPSEdition                      Core\r\nGitCommitId                    6.1.0\r\nOS                             Microsoft Windows 10.0.17134\r\nPlatform                       Win32NT\r\nPSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}\r\nPSRemotingProtocolVersion      2.3\r\nSerializationVersion           1.1.0.1\r\nWSManStackVersion              3.0\r\n```\r\n\r\nAnalysis\r\n----------------\r\nThe difference between these two cases can be observed in the following block of code:\r\nhttps://github.com/PowerShell/PowerShell/blob/b525b1f0bde65f0c59ccd9bbfe25d1459fcff1a3/src/System.Management.Automation/help/HelpCommentsParser.cs#L1145-L1164\r\n\r\n`[ScriptBlock]` cases are handled by the `else` statement where the `startTokenIndex` is being set to the position before script block itself. Changing `- 1` to `+ 1` in the line https://github.com/PowerShell/PowerShell/blob/b525b1f0bde65f0c59ccd9bbfe25d1459fcff1a3/src/System.Management.Automation/help/HelpCommentsParser.cs#L1157\r\nsolves the problem.\r\n\r\nMay I prepare a PR for this?","author":{"url":"https://github.com/hubuk","@type":"Person","name":"hubuk"},"datePublished":"2018-11-12T02:05:45.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/8234/PowerShell/issues/8234"}