SecretManagement.Chromium.Extension/Tests/Get-FunctionInfo.ps1
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using namespace System.Management.Automation using namespace System.Management.Automation.Language using namespace System.Reflection function Get-FunctionInfo { <# .SYNOPSIS Get an instance of FunctionInfo. .DESCRIPTION FunctionInfo does not present a public constructor. This function calls an internal / private constructor on FunctionInfo to create a description of a function from a script block or file containing one or more functions. .PARAMETER IncludeNested By default functions nested inside other functions are ignored. Setting this parameter will allow nested functions to be discovered. .PARAMETER Path The path to a file containing one or more functions. .PARAMETER ScriptBlock A script block containing one or more functions. .INPUTS System.String .OUTPUTS System.Management.Automation.FunctionInfo .EXAMPLE Get-ChildItem -Filter *.psm1 | Get-FunctionInfo Get all functions declared within the *.psm1 file and construct FunctionInfo. .EXAMPLE Get-ChildItem C:\Scripts -Filter *.ps1 -Recurse | Get-FunctionInfo Get all functions declared in all ps1 files in C:\Scripts. .NOTES Change log: 10/12/2015 – Chris Dent – Improved error handling. 28/10/2015 – Chris Dent – Created. #> [CmdletBinding(DefaultParameterSetName = 'FromPath')] [OutputType([System.Management.Automation.FunctionInfo])] param ( [Parameter(Position = 1, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'FromPath')] [Alias('FullName')] [String]$Path, [Parameter(ParameterSetName = 'FromScriptBlock')] [ScriptBlock]$ScriptBlock, [Switch]$IncludeNested ) begin { $executionContextType = [PowerShell].Assembly.GetType('System.Management.Automation.ExecutionContext') $constructor = [FunctionInfo].GetConstructor( [BindingFlags]'NonPublic, Instance', $null, [CallingConventions]'Standard, HasThis', ([String], [ScriptBlock], $executionContextType), $null ) } process { if ($pscmdlet.ParameterSetName -eq 'FromPath') { try { $scriptBlock = [ScriptBlock]::Create((Get-Content $Path –Raw)) } catch { $ErrorRecord = @{ Exception = $_.Exception.InnerException ErrorId = 'InvalidScriptBlock' Category = 'OperationStopped' } Write-Error @ErrorRecord } } if ($scriptBlock) { $scriptBlock.Ast.FindAll( { param( $ast ) $ast -is [FunctionDefinitionAst] }, $IncludeNested ) | ForEach-Object { try { $internalScriptBlock = $_.Body.GetScriptBlock() } catch { Write-Debug $_.Exception.Message } if ($internalScriptBlock) { $constructor.Invoke(([String]$_.Name, $internalScriptBlock, $null)) } } } } } |