Private/Metrics/Get-FunctionLinesOfCode.ps1
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Function Get-FunctionLinesOfCode { <# .SYNOPSIS Gets the number of lines in the specified function definition (excluding comments). .DESCRIPTION Gets the number of lines of code in the specified function definition specified as a [System.Management.Automation.Language.FunctionDefinitionAst]. The single line comments, multiple lines comments and comment-based help are not executable code, so they are excluded. .PARAMETER FunctionDefinition To specify the function definition to analyze. .EXAMPLE PS C:\> Get-FunctionLinesOfCode -FunctionDefinition $MyFunctionAst Returns the number of lines of code in the specified function definition. .OUTPUTS System.Int32 .NOTES #> [CmdletBinding()] [OutputType([System.Int32])] Param ( [Parameter(Position=0, Mandatory)] [System.Management.Automation.Language.FunctionDefinitionAst]$FunctionDefinition ) $FunctionText = $FunctionDefinition.Extent.Text Write-VerboseOutput -Message "Function name : $($FunctionDefinition.Name)" $AstTokens = [System.Management.Automation.PSParser]::Tokenize($FunctionText, [ref]$Null) $NoCommentTokens = $AstTokens.Where({ $_.Type -ne 'Comment' }) # Substracting 1 from the number of lines if the last token is a NewLine [System.Int32]$NumberofLinesToSubstract = If ( $NoCommentTokens[-1].Type -eq 'NewLine' ) { 1 } Else { 0 } Write-VerboseOutput -Message "Number of lines to substract : $($NumberofLinesToSubstract)." [System.Int32]$NumberOfLines = ($NoCommentTokens.Where({ $_.Type -eq 'NewLine' })).Count - $NumberofLinesToSubstract return $NumberOfLines } |