help understanding cmdlet

PowerShell Help
1

I’m looking into a cmdlet and it’s unclear to me what some parts of the code trying to do. Was hoping if someone can explain:

First there’s this code block:

[OutputType([Microsoft.Management.Infrastructure.CimInstance])]
[OutputType('Microsoft.Management.Infrastructure.CimInstance#MSFT_HCSStorageAccountCredential_TestResult')]
[OutputType([Microsoft.Management.Infrastructure.CimInstance])]
[OutputType('Microsoft.Management.Infrastructure.CimInstance#MSFT_HCSStorageAccountCredential_TestResult')]
[OutputType([Microsoft.Management.Infrastructure.CimInstance])]
[OutputType('Microsoft.Management.Infrastructure.CimInstance#MSFT_HCSStorageAccountCredential_TestResult')]

Next there’s a param() block which is understandable.

Next, there’s a dynamic parameter block:

DynamicParam {
    try {
        if (-not $__cmdletization_exceptionHasBeenThrown) {
            $__cmdletization_objectModelWrapper = Microsoft.PowerShell.Utility\New-Object $script:ObjectModelWrapper
            $__cmdletization_objectModelWrapper.Initialize($PSCmdlet, $script:ClassName, $script:ClassVersion, $script:ModuleVersion, $script:PrivateData)

            if ($__cmdletization_objectModelWrapper -is [System.Management.Automation.IDynamicParameters]) {
                ([System.Management.Automation.IDynamicParameters]$__cmdletization_objectModelWrapper).GetDynamicParameters()
            }
        }
    } catch {
        $__cmdletization_exceptionHasBeenThrown = $true
        throw
    }
}

again, not clear on what’s it’s trying to do…
Next, is a Begin section:

Begin {
    $__cmdletization_exceptionHasBeenThrown = $false
    try {
        __cmdletization_BindCommonParameters $__cmdletization_objectModelWrapper $PSBoundParameters
        $__cmdletization_objectModelWrapper.BeginProcessing()
    } catch {
        $__cmdletization_exceptionHasBeenThrown = $true
        throw
    }
}

Finally, a Process section:

Process {
    $__cmdletization_methodParameters = Microsoft.PowerShell.Utility\New-Object 'System.Collections.Generic.List[Microsoft.PowerShell.Cmdletization.MethodParameter]'
        [object]$__cmdletization_defaultValue = $null
        [object]$__cmdletization_defaultValueIsPresent = $false
        if ($PSBoundParameters.ContainsKey('Name')) {
            [object]$__cmdletization_value = ${Name}
            $__cmdletization_methodParameter = Microsoft.PowerShell.Utility\New-Object Microsoft.PowerShell.Cmdletization.MethodParameter -Property @{
                Name = 'Name'; ParameterType = 'System.String'; Bindings = 'In'; Value = $__cmdletization_value; IsValuePresent = $true}
        } else {
            $__cmdletization_methodParameter = Microsoft.PowerShell.Utility\New-Object Microsoft.PowerShell.Cmdletization.MethodParameter -Property @{
                Name = 'Name'; ParameterType = 'System.String'; Bindings = 'In'; Value = $__cmdletization_defaultValue; IsValuePresent = $__cmdletization_defaultValueIsPresent}
        }
        $__cmdletization_methodParameters.Add($__cmdletization_methodParameter)

        [object]$__cmdletization_defaultValue = $null
        [object]$__cmdletization_defaultValueIsPresent = $false
        $__cmdletization_methodParameter = Microsoft.PowerShell.Utility\New-Object Microsoft.PowerShell.Cmdletization.MethodParameter -Property @{
            Name = 'CmdletOutput'; ParameterType = 'Microsoft.Management.Infrastructure.CimInstance'; Bindings = 'Out'; Value = $__cmdletization_defaultValue; IsValuePresent = $__cmdletization_defaultValueIsPresent}
        $__cmdletization_methodParameter.ParameterTypeName = 'Microsoft.Management.Infrastructure.CimInstance#MSFT_HCSStorageAccountCredential_TestResult'
        $__cmdletization_methodParameters.Add($__cmdletization_methodParameter)

        $__cmdletization_returnValue = Microsoft.PowerShell.Utility\New-Object Microsoft.PowerShell.Cmdletization.MethodParameter -Property @{ 
            Name = 'ReturnValue'; ParameterType = 'System.Int32'; Bindings = 'Error'; Value = $null; IsValuePresent = $false }

        $__cmdletization_methodInvocationInfo = Microsoft.PowerShell.Utility\New-Object Microsoft.PowerShell.Cmdletization.MethodInvocationInfo @(
            'TestByName', $__cmdletization_methodParameters, $__cmdletization_returnValue)
      
        $__cmdletization_objectModelWrapper.ProcessRecord($__cmdletization_methodInvocationInfo)
        }
}
2

Well… knowing little about your background, I’m not sure what I can assume about your knowledge. I’m also not sure I can write you a book about what-all that’s doing ;). Is there maybe a particular piece that you don’t understand, that we could start with?

3

Hey Don, thanks for reply. I’ve been working with PS for about 3 years. I’ve from SysOps background not DevOps.
I probably should have small specific questions. Let me try to do that :slight_smile:

Here is a single line of code:

[OutputType([Microsoft.Management.Infrastructure.CimInstance])][OutputType('Microsoft.Management.Infrastructure.CimInstance#MSFT_HCSStorageAccountCredential_TestResult')]

what’s this one line doing?

Thanks