Rules/Test-ForPipelineParameter.ps1
|
function Test-ForPipelineParameter { param( [Parameter(ParameterSetName='TestCommandInfo',Mandatory=$true,ValueFromPipeline=$true)] [Management.Automation.CommandInfo] $CommandInfo ) process { if ($commandInfo.Parameters.Count) { $pipelineParameterExists = $CommandInfo.Parameters.Values | Select-Object -ExpandProperty Attributes | Where-Object { $_.ValueFromPipeline -or $_.ValueFromPipelineByPropertyName } if (-not $pipelineParameterExists) { Write-Error "The essence of PowerShell is in the Pipeline, by $CommandInfo has no parameters that use it." return } } } } |