English  |  正體中文  |  简体中文  |  Items with full text/Total items : 51296/86412 (59%)
Visitors : 8177604      Online Users : 79
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/105551

    Title: 語法樹系統翻修過程中null指標的處理
    Other Titles: Null pointer handling in reimplementing a syntax tree system
    Authors: 花于雱;Hua, Yu-Pang
    Contributors: 淡江大學資訊管理學系碩士班
    廖賀田;Liaw, Heh-Tyan
    Keywords: Java;null pointer;語法樹;syntax tree
    Date: 2015
    Issue Date: 2016-01-22 14:58:56 (UTC+8)
    Abstract: 為支援軟體混亂器[2],我們以先前Java直譯器[1]中的語法樹系統為雛型,做進一步的重整及開發。新版的語法樹類別包含有關聯欄位,形成雙向鏈結的關係,它們必須即時性地確保雙向關係的一致性。
    為了解決這問題,本論文提出一套對null指標的處理方式。依程式的使用狀況,以illegal type或none type取代原本使用null的地方。減少除錯的成本並使專案得以在更穩定的環境下開發。
    To support software obfuscator [2], we applied the syntax tree system as the model for further development and refactory system we had developed in the Java interpreter [1]. The new version of syntax tree system’s class contains relation fields with two-way link between these. A relation field must ensure that those relationships are consistent in real time.
    Null is extensively used in programming languages. However, it makes debug becomes difficult. When the large-scale programs exploded the null pointer exception, it is rather difficult to immediately know how that occurred.
    To solve this problem, in this paper, we propose a methodology on null pointer handling. According to code’s statue, illegal type or none type is used to replace the original use of null''s place. The cost of debugging and the program to be developed in the stability environment was reduced.
    Appears in Collections:[資訊管理學系暨研究所] 學位論文

    Files in This Item:

    File Description SizeFormat

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback