Commands/Parsers/Parse-CSharp.ps1
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function Parse.CSharp { <# .SYNOPSIS Parses CSharp .DESCRIPTION Parses CSharp using Microsoft.CodeAnalysis .EXAMPLE Parse-CSharp -Source '"hello world";' #> [OutputType('Microsoft.CodeAnalysis.SyntaxTree')] [Alias('Parse-CSharp')] param( # The source. Can be a string or a file. [Parameter(ValueFromPipeline)] [Alias('Text','SourceText','SourceFile','InputObject')] [ValidateScript({ $validTypeList = [System.String],[System.IO.FileInfo] $thisType = $_.GetType() $IsTypeOk = $(@( foreach ($validType in $validTypeList) { if ($_ -as $validType) { $true;break } })) if (-not $isTypeOk) { throw "Unexpected type '$(@($thisType)[0])'. Must be 'string','System.IO.FileInfo'." } return $true })] [PSObject] $Source ) begin { if (-not ('Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree' -as [type])) { Add-Type -AssemblyName Microsoft.CodeAnalysis.CSharp } $accumulate = [Collections.Queue]::new() } process { $accumulate.Enqueue([Ordered]@{psParameterSet=$psCmdlet.ParameterSetName} + $PSBoundParameters) } end { $count = 0 $total = $accumulate.Count -as [double] if (-not $script:LastProgressID) { $script:LastProgressID = 1} $script:LastProgressID++ if (-not ('Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree' -as [type])) { return } while ($accumulate.Count) { $dequeue = $accumulate.Dequeue() if ($total -gt 1) { Write-Progress "Parsing CSharp" " " -Id $script:LastProgressID -PercentComplete $( $count++ [Math]::Min($count / $total, 1) * 100 ) } foreach ($kv in $dequeue.GetEnumerator()) { $ExecutionContext.SessionState.PSVariable.Set($kv.Key, $kv.Value) } if ($Source -is [string]) { [Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree]::ParseText($Source) } elseif ($Source -is [IO.FileInfo]) { if ($Source.Extension -in '.cs', '.csx') { [Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree]::ParseText([IO.File]::ReadAllText($Source), $null, $Source.Fullname) } } } } } |