Merge pull request #83 from indented-automation/development

Adds Get-PSMDArgumentCompleter

Author: FriedrichWeinmann

PSModuleDevelopment/PSModuleDevelopment.psd1

@@ -1,73 +1,74 @@
 @{
-	
+
 	# Script module or binary module file associated with this manifest
 	RootModule = 'PSModuleDevelopment.psm1'
-	
+
 	# Version number of this module.
 	ModuleVersion = '2.2.6.51'
-	
+
 	# ID used to uniquely identify this module
 	GUID = '37dd5fce-e7b5-4d57-ac37-832055ce49d6'
-	
+
 	# Author of this module
 	Author = 'Friedrich Weinmann'
-	
+
 	# Company or vendor of this module
 	CompanyName = 'Infernal Associates ltd.'
-	
+
 	# Copyright statement for this module
 	Copyright = '(c) 2016. All rights reserved.'
-	
+
 	# Description of the functionality provided by this module
 	Description = 'A module designed to speed up the development of PowerShell modules'
-	
+
 	# Minimum version of the Windows PowerShell engine required by this module
 	PowerShellVersion = '3.0'
-	
+
 	# Name of the Windows PowerShell host required by this module
 	PowerShellHostName = ''
-	
+
 	# Minimum version of the Windows PowerShell host required by this module
 	PowerShellHostVersion = ''
-	
+
 	# Minimum version of the .NET Framework required by this module
 	DotNetFrameworkVersion = '2.0'
-	
+
 	# Minimum version of the common language runtime (CLR) required by this module
 	CLRVersion = '2.0.50727'
-	
+
 	# Processor architecture (None, X86, Amd64, IA64) required by this module
 	ProcessorArchitecture = 'None'
-	
+
 	# Modules that must be imported into the global environment prior to importing
 	# this module
 	RequiredModules	       = @(
 		@{ ModuleName = 'PSFramework'; ModuleVersion = '0.10.31.176' }
 	)
-	
+
 	# Assemblies that must be loaded prior to importing this module
 	RequiredAssemblies = @('bin\PSModuleDevelopment.dll')
-	
+
 	# Script files (.ps1) that are run in the caller's environment prior to
 	# importing this module
 	ScriptsToProcess = @()
-	
+
 	# Type files (.ps1xml) to be loaded when importing this module
 	TypesToProcess = @('xml\PSModuleDevelopment.Types.ps1xml')
-	
+
 	# Format files (.ps1xml) to be loaded when importing this module
 	FormatsToProcess = @('xml\PSModuleDevelopment.Format.ps1xml')
-	
+
 	# Modules to import as nested modules of the module specified in
 	# ModuleToProcess
 	NestedModules = @()
-	
+
 	# Functions to export from this module
     FunctionsToExport = @(
 		'Expand-PSMDTypeName',
 		'Find-PSMDFileContent',
 		'Find-PSMDType',
 		'Format-PSMDParameter',
+		'Get-PSMDArgumentCompleter',
 		'Get-PSMDAssembly',
 		'Get-PSMDConstructor',
 		'Get-PSMDHelpEx',
@@ -98,13 +99,13 @@
 		'Show-PSMDSyntax',
 		'Split-PSMDScriptFile'
     )
-	
+
 	# Cmdlets to export from this module
-	CmdletsToExport = '' 
-	
+	CmdletsToExport = ''
+
 	# Variables to export from this module
 	VariablesToExport = ''
-	
+
 	# Aliases to export from this module
     AliasesToExport = @(
 		'dotnetnew',
@@ -117,36 +118,36 @@
         'rss',
         'smd'
     )
-	
+
 	# List of all modules packaged with this module
 	ModuleList = @()
-	
+
 	# List of all files packaged with this module
 	FileList = @()
-	
+
 	# Private data to pass to the module specified in ModuleToProcess
 	PrivateData = @{
-		
+
 		#Support for PowerShellGet galleries.
 		PSData = @{
-			
+
 			# Tags applied to this module. These help with module discovery in online galleries.
 			Tags = @('Development', 'Module')
-			
+
 			# A URL to the license for this module.
 			# LicenseUri = ''
-			
+
 			# A URL to the main website for this project.
 			ProjectUri = 'http://psframework.org'
-			
+
 			# A URL to an icon representing this module.
 			# IconUri = ''
-			
+
 			# ReleaseNotes of this module
 			# ReleaseNotes = ''
-			
+
 		} # End of PSData hashtable
-		
+
 	} # End of PrivateData hashtable
 }
 

PSModuleDevelopment/functions/utility/Get-PSMDArgumentCompleter.ps1

@@ -0,0 +1,67 @@
+function Get-PSMDArgumentCompleter
+{
+<#
+	.SYNOPSIS
+		Gets the registered argument completers.
+
+    .DESCRIPTION
+        This function can be used to serach the argument completers registered using either the Register-ArgumentCompleter command or created using the ArgumentCompleter attribute.
+
+	.PARAMETER CommandName
+		Filter the results to a specific command. Wildcards are supported.
+
+	.PARAMETER ParameterName
+		Filter results to a specific parameter name. Wildcards are supported.
+
+	.EXAMPLE
+		PS C:\> Get-PSMDArgumentCompleter
+
+        Get all argument completers in use in the current PowerShell session.
+
+#>
+	[CmdletBinding()]
+	Param (
+        [Parameter(Position = 1, ValueFromPipeline = $true, ValueFromPipelineByPropertyName)]
+        [Alias('Name')]
+        [String]
+        $CommandName = '*',
+
+        [String]
+        $ParameterName = '*'
+    )
+
+	begin
+	{
+        $internalExecutionContext = [PSFramework.Utility.UtilityHost]::GetExecutionContextFromTLS()
+        $customArgumentCompletersProperty = $internalExecutionContext.GetType().GetProperty(
+            'CustomArgumentCompleters',
+            [System.Reflection.BindingFlags]'NonPublic, Instance'
+        )
+        $customArgumentCompleters = $customArgumentCompletersProperty.GetGetMethod($true).Invoke(
+            $internalExecutionContext,
+            [System.Reflection.BindingFlags]'Instance, NonPublic, GetProperty',
+            $null,
+            @(),
+            $psculture
+        )
+	}
+	process
+	{
+        foreach ($argumentCompleter in $customArgumentCompleters.Keys)
+        {
+            $name, $parameter = $argumentCompleter -split ':'
+
+            if ($name -like $CommandName)
+            {
+                if ($parameter -like $ParameterName)
+                {
+                    New-Object PSObject -Property @{
+                        CommandName   = $name
+                        ParameterName = $parameter
+                        Definition    = $customArgumentCompleters[$argumentCompleter]
+                    }
+                }
+            }
+        }
+    }
+}