void run_assign_statement(Statement statement)
{
var s = (AssignStatement)statement;
var result = s.expression.eval(symbol_table);
// x = list --- special handling
// For list slice, if system ($) variable, store the list slice
// to symbol table.
//
// If user variable, meaning no $ start, make a copy of the
// list and store that copy to the symbol table
if (result.Type == ValueType.List && s.lvalue.StartsWith('$') == false)
{
// user variable case
var list_result = (ListValue)result;
if (list_result.is_slice())
{
result = list_result.get_shallow_copy();
}
}
symbol_table.store(s.lvalue, result);
prog_counter++;
}