transformers/requireWriteOutput.psm1
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Ipmo -fo $PSScriptRoot/../core.psm1 function requireWriteOutput($ast) { <# .SYNOPSIS Prevent accidental output by requiring use of Write-Output We do this by transforming all Write-Output calls into pwsh-transpiler-Write-Output calls, which wraps each value written to output in a wrapper class. Then each block is wrapped in a pipeline filter that unwraps wrapped items and suppresses all others. #> wrapBlocks $ast '. {' '} | . {process{if($_ -is [OutputWrapper]) {$_.value}}}' } # TODO emit this helper code into the target module $helper = { class OutputWrapper { OutputWrapper([Object]$value) { $this.value = $value } [Object]$value } } . $helper |