Private/ConvertScript.ps1
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Function ConvertScript { Param ( [scriptblock]$ScriptBlock ) $UsingVariables = @(GetUsingVariables -ScriptBlock $ScriptBlock) $List = New-Object 'System.Collections.Generic.List`1[System.Management.Automation.Language.VariableExpressionAst]' $Params = New-Object System.Collections.ArrayList If ($Script:Add_) { [void]$Params.Add('$_') } If ($UsingVariables) { ForEach ($Ast in $UsingVariables) { [void]$list.Add($Ast.SubExpression) } $UsingVariableData = @(GetUsingVariableValues $UsingVariables) [void]$Params.AddRange(@($UsingVariableData.NewName | Select-Object -Unique)) } $NewParams = $Params -join ', ' $Tuple=[Tuple]::Create($list,$NewParams) $bindingFlags = [Reflection.BindingFlags]"Default,NonPublic,Instance" $GetWithInputHandlingForInvokeCommandImpl = ($ScriptBlock.ast.gettype().GetMethod('GetWithInputHandlingForInvokeCommandImpl',$bindingFlags)) $StringScriptBlock = $GetWithInputHandlingForInvokeCommandImpl.Invoke($ScriptBlock.ast,@($Tuple)) If ([scriptblock]::Create($StringScriptBlock).ast.endblock[0].statements.extent.text.startswith('$input |')) { $StringScriptBlock = $StringScriptBlock -replace '\$Input \|' } If (-NOT $ScriptBlock.Ast.ParamBlock) { $StringScriptBlock = "Param($($NewParams))`n$($StringScriptBlock)" [scriptblock]::Create($StringScriptBlock) } Else { [scriptblock]::Create($StringScriptBlock) } } |