public void Visit(AssignmentStatement assignStmt)
{
// Count right side of expression and place the result on the stack
assignStmt.RightSideExpression.Accept(this);
// Find item (variable) in the scope by name and try to assign it a value
Item item = Environment.GetItem(assignStmt.Variable);
dynamic varFromStack = Environment.PopFromTheStack();
if (item is StrItem && varFromStack is string)
{
(item as StrItem).Value = varFromStack;
}
else if (item is NumItem && varFromStack is double)
{
(item as NumItem).Value = varFromStack;
}
else
{
throw new ExecutorException($"Cannot assign {varFromStack} to {item.Name}");
}
}
public void Visit(AssignmentStatement assignStmt)
{
Console.Write($"{assignStmt.Variable}=");
assignStmt.RightSideExpression.Accept(this);
}