Private/Get-ParameterValue.ps1
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function Get-ParameterValue { #.Synopsis # Get the actual values of parameters which have manually set (non-null) default values or values passed in the call #.Description # Unlike $PSBoundParameters, the hashtable returned from Get-ParameterValues includes non-empty default parameter values. # NOTE: Default values that are the same as the implied values are ignored (e.g.: empty strings, zero numbers, nulls). #.Example # function Test-Parameters { # [CmdletBinding()] # param( # $Name = $Env:UserName, # $Age # ) # $Parameters = . Get-ParameterValues # # # This WILL ALWAYS have a value... # Write-Host $Parameters["Name"] # # # But this will NOT always have a value... # Write-Host $PSBoundParameters["Name"] # } [CmdletBinding()] param( # The $MyInvocation for the caller -- DO NOT pass this (dot-source Get-ParameterValues instead) $Invocation = $MyInvocation, # The $PSBoundParameters for the caller -- DO NOT pass this (dot-source Get-ParameterValues instead) $BoundParameters = $PSBoundParameters, [string[]]$DefaultExcludeParameter = @("id", "url", "apiKey", 'Debug', 'Verbose') ) if ($MyInvocation.Line[($MyInvocation.OffsetInLine - 1)] -ne '.') { throw "Get-ParameterValues must be dot-sourced, like this: . Get-ParameterValues" } if ($PSBoundParameters.Count -gt 0) { throw "You should not pass parameters to Get-ParameterValues, just dot-source it like this: . Get-ParameterValues" } $ParameterValues = @{} foreach ($parameter in $Invocation.MyCommand.Parameters.GetEnumerator()) { # gm -in $parameter.Value | Out-Default try { $key = $parameter.Key if ($key -notin $DefaultExcludeParameter) { if ($null -ne ($value = Get-Variable -Name $key -ValueOnly -ErrorAction Ignore )) { if ($value -ne ($null -as $parameter.Value.ParameterType)) { $ParameterValues[$key] = $value } } if ($BoundParameters.ContainsKey($key)) { $ParameterValues[$key] = $BoundParameters[$key] } } } finally {} } return $ParameterValues } |