private object MinusEqual(IScriptContext context)
{
object rez = context.Result;
nameExpr.Evaluate(context);
object rezName = context.Result;
HandleOperatorArgs handling = OnHandleOperator(this, context, "-=", rezName, rez);
if (handling.Cancel)
{
rez = handling.Result;
}
else
{
rez = minus.Evaluate(rezName, rez);
}
//if (!(rezName is EventInfo))
//{
// rez = RuntimeHost.GetBinaryOperator("-").Evaluate(rezName, rez);
//}
//else
//{
// rez = new RemoveDelegate((IInvokable)rez);
//}
nameExpr.Assign(rez, context);
return(rez);
}
private object PlusEqual(IScriptContext context)
{
object rez = context.Result;
nameExpr.Evaluate(context);
object rezName = context.Result;
HandleOperatorArgs handling = OnHandleOperator(this, context, "+=", rezName, rez);
if (handling.Cancel)
{
rez = handling.Result;
}
else
{
rez = plus.Evaluate(rezName, rez);
}
//TODO: Events!
//if (!(rezName is EventInfo))
//{
// rez = RuntimeHost.GetBinaryOperator("+").Evaluate(rezName, rez);
//}
nameExpr.Assign(rez, context);
return(rez);
}
protected static HandleOperatorArgs OnHandleOperator(object sender, IScriptContext context, string symbol, params object[] parameters)
{
var args = new HandleOperatorArgs(context, symbol, parameters);
if (HandleOperator != null)
{
HandleOperator.Invoke(sender, args);
}
return(args);
}
public object Process(HandleOperatorArgs args)
{
if (args.Arguments != null && args.Arguments.Length == 1)
{
string value = (string)args.Arguments[0];
args.Cancel = true;
return(int.Parse(value));
}
throw new NotSupportedException();
}
public override void Evaluate(IScriptContext context)
{
expr.Evaluate(context);
HandleOperatorArgs handler = OnHandleOperator(this, context, oper, context.Result);
if (handler.Cancel)
{
context.Result = handler.Result;
}
else
{
context.Result = RuntimeHost.GetUnaryOperator(oper).Evaluate(context.Result);
}
//Context.EvaluateUnaryOperator(oper, Context.Result);
}
private object AssignEx(IScriptContext context)
{
object rez = context.Result;
nameExpr.Evaluate(context);
HandleOperatorArgs handling = OnHandleOperator(this, context, ":=", context.Result, rez);
if (handling.Cancel)
{
rez = handling.Result;
}
else
{
((ISupportAssign)rez).AssignTo(context.Result);
rez = context.Result;
}
return(rez);
}
