Merge pull request #6 from santisq/5-invoke-parallel-should-use-$pscmdlet-instead-of-$executioncontext

Change `$ExecutionContext` for `$PSCmdlet` on `$using:` statements

Author: santisq

PSParallelPipeline/PSParallelPipeline.psd1

@@ -12,7 +12,7 @@
 RootModule = 'PSParallelPipeline.psm1'
 
 # Version number of this module.
-ModuleVersion = '1.0.2'
+ModuleVersion = '1.0.3'
 
 # Supported PSEditions
 # CompatiblePSEditions = @()

PSParallelPipeline/PSParallelPipeline.psm1

@@ -156,7 +156,10 @@ function Invoke-Parallel {
 
                 $key = [Convert]::ToBase64String([Encoding]::Unicode.GetBytes($varText.ToLower()))
                 if(-not $usingParams.ContainsKey($key)) {
-                    $usingParams.Add($key, $ExecutionContext.SessionState.PSVariable.GetValue($varPath))
+                    # Huge thanks to SeeminglyScience again and again! The function must use
+                    # `$PSCmdlet.SessionState` instead of `$ExecutionContext.SessionState`
+                    # to properly refer to the caller's scope.
+                    $usingParams.Add($key, $PSCmdlet.SessionState.PSVariable.GetValue($varPath))
                 }
             }