PowerShell 4.0 Wishlist - Select-Object Enhancement

I mostly like the way Select-Object allows you to create custom objects and properties. However, I really wish it was simpler to create properties with ScriptBlock values without the lengthy Hashtable definition.

If only Select-Object would implement something like this so you can define a property ScriptBlock without the long Hashtable definition. Similar to how this custom function I wrote allows you to define a property name as the Key of the Hashtable and the value as the ScriptBlock or name of the property.

Wishlists are usually wishful thinking, there are probably reasons why Select-Object behaves like it does, it isn't that bad since you can short-hand the keys but it just doesn't seem as fluid. Here is to wishing for a better Select-Object.

1. function ConvertTo-PSCustomObject {  
2.     [CmdletBinding()]  
3.     param(  
4.         [ValidateNotNullOrEmpty()]  
5.         [Parameter(Mandatory = $true, Position = 0)]  
6.         [Array] $Property,  
7.   
8.         [Parameter(Mandatory = $true, ValueFromPipeline = $true)]  
9.         $InputObject  
10.     )  
11.   
12.     begin {  
13.         $Properties = $Property |% {  
14.             if ($_ -is [Hashtable]) {  
15.                 $_.GetEnumerator() |% {  
16.                     if ($_.Value -is [ScriptBlock]) {  
17.                         @{Name="$($_.Key)";Expression=$_.Value}  
18.                     } else {  
19.                         @{Name="$($_.Key)";Expression=[ScriptBlock]::Create("`$_.'$($_.Value)'")}  
20.                     }  
21.                 }  
22.             } else {  
23.                 $_  
24.             }  
25.         }  
26.     }  
27.   
28.     process {  
29.         $InputObject | Select-Object -Property $Properties  
30.     }  
31. }  
32.   
33. gci $ENV:TEMP -Directory | ConvertTo-PSCustomObject Extension,@{FileName='Name'},@{Age={(Get-Date) - $_.CreationTime}}