[pwsh]Add code snippets.

Author: mawosoft

PowerShell/snippets.ps1

@@ -0,0 +1,67 @@
+# Copyright (c) 2023 Matthias Wolf, Mawosoft.
+
+<#
+.SYNOPSIS
+    Code snippets for Powershell.
+.DESCRIPTION
+    Defines code snippets for PowerShell and outputs them as a JSON string for use in
+    a VSCode code snippets file.
+.OUTPUTS
+    [string] JSON string for use in a VSCode code snippets file.
+.NOTES
+    - The 'body' property can be a [scriptblock] to allow syntax checking.
+    - However, when using template variables, 'body' must be a string.
+      Using a single here-string is fine (no need for those silly line arrays).
+.LINK
+    https://code.visualstudio.com/docs/editor/userdefinedsnippets
+#>
+
+[CmdletBinding()]
+[OutputType([string])]
+param()
+
+@{
+    'no-dotsourcing'     = @{
+        prefix      = 'no-dotsourcing'
+        description = 'Prevent global dot-sourcing of a script.'
+        body        = {
+            try {
+                $null = Get-Variable 'foobar' -Scope 1 -ErrorAction Stop
+            }
+            catch [System.ArgumentOutOfRangeException] {
+                throw 'Dot-sourcing this script is not allowed.'
+            }
+            catch {}
+        }
+    }
+
+    'dynamic-assemblies' = @{
+        prefix      = 'dynamic-assemblies'
+        description = 'Get the assemblies with dynamically created types.'
+        body        = {
+            [System.AppDomain]::CurrentDomain.GetAssemblies().Where({ $_.IsDynamic -or $_.GetName().Version -eq '0.0.0.0' })
+        }
+    }
+
+    'dynamic-types'      = @{
+        prefix      = 'dynamic-types'
+        description = 'Get the dynamically created types and their assemblies.'
+        body        = {
+            [System.AppDomain]::CurrentDomain.GetAssemblies().Where({
+                    $_.IsDynamic -or $_.GetName().Version -eq '0.0.0.0'
+                }) | Select-Object FullName, ExportedTypes
+        }
+    }
+
+
+} | ForEach-Object {
+    $_.GetEnumerator().ForEach({
+            if ($_.Value.body -is [scriptblock]) {
+                $_.Value.body = ([string]$_.Value.body).Trim().Replace('$', '\$') -csplit '\r?\n'
+            }
+            else {
+                $_.Value.body = ([string]$_.Value.body).Trim() -csplit '\r?\n'
+            }
+        })
+    $_
+} | ConvertTo-Json

README.md

@@ -2,8 +2,13 @@
 
 Miscellaneous scripts.
 
-- **PowerShell/Profile**\
-  Creates a PowerShell profile script with automatic customizations based on installed software.
+- **PowerShell**
+
+  - **Profile**\
+    Creates a PowerShell profile script with automatic customizations based on installed software.
+
+  - **snippets.ps1**\
+    Code snippets for PowerShell.
 
 - **VirtualBox**\
   Batch scripts to automatically take a snapshot before starting a VM and verify snapshot creation inside the VM.