public static bool RequiresParameter(Expression node)
{
RequiresParameterVisitor visitor = new RequiresParameterVisitor();
visitor.Visit(node);
return(visitor.result);
}
public override Expression Visit(Expression node)
{
if (!RequiresParameterVisitor.RequiresParameter(node))
{
Expression <Func <object> > funct = () => new object();
funct = Expression.Lambda <Func <object> >(Expression.Convert(node, typeof(object)), funct.Parameters);
object res = funct.Compile()();
return(ConstantExpression.Constant(res, node.Type));
}
return(base.Visit(node));
}
