Types/AST/get_IsEmpty.ps1
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<# .SYNOPSIS Determines if a PowerShell AST is empty .DESCRIPTION Determines if a PowerShell Abstract Syntax Tree is empty. It will be considered empty if is a ScriptBlockExpression with no parameters or statements in any blocks. #> param() $ast = $this if ($ast.Body) { $ast = $ast.Body } if ($ast -isnot [Management.Automation.Language.ScriptBlockExpressionAST]) { return $false } foreach ($property in $ast.psobject.Properties) { if ($property.Name -notmatch 'Block$') { continue } if ($property.Value.Statements.Count) { return $false } if ($property.Value.Parameters.Count) { return $false } } return $true |