/// <summary>
/// Evaluates the given expression if it's a simple expression else it returns null
/// </summary>
/// <param name="rootScope"></param>
/// <param name="expr"></param>
/// <returns></returns>
internal static ILanguageValue EvaluateExpressionIfSimple(LanguageScope rootScope, ILanguageExpression expr)
{
if (!expr.IsSimpleExpression)
{
return(null);
}
var evaluator = new GMacExpressionEvaluator(rootScope);
return(expr.AcceptVisitor(evaluator));
}
/// <summary>
/// Evaluate the given expression inside the given scope
/// </summary>
/// <param name="rootScope"></param>
/// <param name="expr"></param>
/// <returns></returns>
internal static ILanguageValue EvaluateExpression(LanguageScope rootScope, ILanguageExpression expr)
{
var evaluator = new GMacExpressionEvaluator(rootScope);
return(expr.AcceptVisitor(evaluator));
}