private Collection <PSObject> InvokeScript(ScriptBlock sb, bool useNewScope,
PipelineResultTypes writeToPipeline, IList input, params object[] args)
{
if (_cmdlet != null)
{
_cmdlet.ThrowIfStopping();
}
Cmdlet cmdletToUse = null;
ScriptBlock.ErrorHandlingBehavior errorHandlingBehavior = ScriptBlock.ErrorHandlingBehavior.WriteToExternalErrorPipe;
// Check if they want output
if ((writeToPipeline & PipelineResultTypes.Output) == PipelineResultTypes.Output)
{
cmdletToUse = _cmdlet;
writeToPipeline &= (~PipelineResultTypes.Output);
}
// Check if they want error
if ((writeToPipeline & PipelineResultTypes.Error) == PipelineResultTypes.Error)
{
errorHandlingBehavior = ScriptBlock.ErrorHandlingBehavior.WriteToCurrentErrorPipe;
writeToPipeline &= (~PipelineResultTypes.Error);
}
if (writeToPipeline != PipelineResultTypes.None)
{
// The only output types are Output and Error.
throw PSTraceSource.NewNotImplementedException();
}
// If the cmdletToUse is not null, then the result of the evaluation will be
// streamed out the output pipe of the cmdlet.
object rawResult;
if (cmdletToUse != null)
{
sb.InvokeUsingCmdlet(
contextCmdlet: cmdletToUse,
useLocalScope: useNewScope,
errorHandlingBehavior: errorHandlingBehavior,
dollarUnder: AutomationNull.Value,
input: input,
scriptThis: AutomationNull.Value,
args: args);
rawResult = AutomationNull.Value;
}
else
{
rawResult = sb.DoInvokeReturnAsIs(
useLocalScope: useNewScope,
errorHandlingBehavior: errorHandlingBehavior,
dollarUnder: AutomationNull.Value,
input: input,
scriptThis: AutomationNull.Value,
args: args);
}
if (rawResult == AutomationNull.Value)
{
return(new Collection <PSObject>());
}
// If the result is already a collection of PSObjects, just return it...
Collection <PSObject> result = rawResult as Collection <PSObject>;
if (result != null)
{
return(result);
}
result = new Collection <PSObject>();
IEnumerator list = null;
list = LanguagePrimitives.GetEnumerator(rawResult);
if (list != null)
{
while (list.MoveNext())
{
object val = list.Current;
result.Add(LanguagePrimitives.AsPSObjectOrNull(val));
}
}
else
{
result.Add(LanguagePrimitives.AsPSObjectOrNull(rawResult));
}
return(result);
}
