Improved evaluation performance

The evaluator is able to effectively determine if any subexpression is constant, avoiding unneeded evaluations in subsequent calls to the Eval method.

Author: ws-garcia

src/UDFunctions.cls

@@ -10,7 +10,7 @@ Attribute VB_Exposed = True
 Option Explicit
 '#
 '////////////////////////////////////////////////////////////////////////////////////////////
-' Copyright © 2022 W. García
+' Copyright © 2022-2023 W. García
 ' GPL-3.0 license | https://www.gnu.org/licenses/gpl-3.0.html/
 ' https://ingwilfredogarcia.wordpress.com
 '////////////////////////////////////////////////////////////////////////////////////////////

src/VBAcallBack.cls

@@ -10,7 +10,7 @@ Attribute VB_Exposed = True
 Option Explicit
 '#
 '////////////////////////////////////////////////////////////////////////////////////////////
-' Copyright © 2022 W. García
+' Copyright © 2022-2023 W. García
 ' GPL-3.0 license | https://www.gnu.org/licenses/gpl-3.0.html/
 ' https://ingwilfredogarcia.wordpress.com
 '////////////////////////////////////////////////////////////////////////////////////////////