| public TryGetValue ( Symbol symbol, object &value ) : bool | ||
| symbol | Symbol | |
| value | object | |
| return | bool | |
public override void EvaluateNode(EvaluationContext context, AstMode mode) {
switch (mode) {
case AstMode.Read:
object value;
if (context.TryGetValue(Symbol, out value))
context.Data.Push(value);
else
context.ThrowError(Resources.ErrVarNotDefined, Symbol);
break;
case AstMode.Write:
context.SetValue(Symbol, context.Data.Pop());
break;
}
}
