$result = Get-ChildItem -Path $path | ForEach-Object {
    if ($_.PSIsContainer)
    {
        $val = [scriptblock]::Create("New-DatumFileProvider -Path `"$($_.FullName)`" -Store `$this.DataOptions -DatumHierarchyDefinition `$this.DatumHierarchyDefinition -Encoding `$this.Encoding")
        $this | Add-Member -MemberType ScriptProperty -Name $_.BaseName -Value $val
    }
    else
    {
        $val = [scriptblock]::Create("Get-FileProviderData -Path `"$($_.FullName)`" -DatumHandlers `$this.DatumHandlers -Encoding `$this.Encoding")
        $this | Add-Member -MemberType ScriptProperty -Name $_.BaseName -Value $val
    }
}

$o = [object]::new()

$o | Add-Member -Name Prop1 -MemberType ScriptProperty -Value {
    'Value1'
    throw "Error"
}

$o.Prop1