using System.Linq;

using ScriptCs.Contracts;

namespace ScriptCs.ReplCommands

{

public class UsingsCommand : IReplCommand

{

public string Description

{

get { return "Displays a list of namespaces imported into REPL context."; }

}

public string CommandName

{

get { return "usings"; }

}

public object Execute(IRepl repl, object[] args)

{

Guard.AgainstNullArgument("repl", repl);

var namespaces = repl.Namespaces;

if (repl.ScriptPackSession == null || repl.ScriptPackSession.Namespaces == null || !repl.ScriptPackSession.Namespaces.Any())

return namespaces;

return namespaces.Union(repl.ScriptPackSession.Namespaces).OrderBy(x => x);

}

}

}