Evaluate to a value object.
( CallStack callstack, Interpreter interpreter)
| 43 | Evaluate to a value object. |
| 44 | */ |
| 45 | public LHS toLHS( CallStack callstack, Interpreter interpreter) |
| 46 | throws EvalError |
| 47 | { |
| 48 | Object obj = eval( true, callstack, interpreter ); |
| 49 | |
| 50 | if ( ! (obj instanceof LHS) ) |
| 51 | throw new EvalError("Can't assign to:", this, callstack ); |
| 52 | else |
| 53 | return (LHS)obj; |
| 54 | } |
| 55 | |
| 56 | /* |
| 57 | Our children are a prefix expression and any number of suffixes. |