public override object Execute(IGraphProcessingEnvironment procEnv) { object[] values = new object[ArgExprs.Count - 1]; for(int i = 1; i < ArgExprs.Count; ++i) { values[i - 1] = ArgExprs[i].Evaluate(procEnv); } procEnv.DebugHalting((string)ArgExprs[0].Evaluate(procEnv), values); return null; }