Apple Dylan




Apple Dylan was the implementation of the Dylan programming language produced by Apple Computer. Apple Dylan was originally developed as the toolbox and application language for the Apple Newton, but later released as a stand-alone development environment for the classic Mac OS, only to be abandoned shortly thereafter. Apple Dylan was code-named Leibniz (a pun, of sorts, since Gottfried Leibniz and Isaac Newton are credited as the inventors of calculus).




Contents






  • 1 Development environment


  • 2 User interface framework


  • 3 Implementation


  • 4 See also


  • 5 References


  • 6 External links





Development environment


Apple Dylan includes a dynamic, integrated development environment inspired by Smalltalk, Macintosh Common Lisp and Think C. Like Think C—and unlike Smalltalk and Lisp—it draws a clear distinction between the development environment and the program being developed. It accomplishes this by linking code—called a “stub”—into the target program, allowing the IDE to communicate with it (to inject code, perform introspection, etc.) without sharing a runtime environment with the IDE.


The IDE (originally code-named “Hula”) includes:



  • "Binder": a tool for configuring browsers

  • A source database

  • A definition database

  • Incremental compilation

  • A cross-platform source debugger

  • Profiling tools

  • An interface builder


The basic browser window in the Apple Dylan environment is Binder. A Binder window consists of a number of linked panes. Each pane has an input, an output, an aspect and a presentation style. A pane's input is the output of another pane—a pane displays information about the selected object(s) in its input pane. Aspects are properties of the input, such as source code, contents, callers, readers, writers, references or compilation warnings. This information can be presented in an outline or a graph. Inputs, aspects and styles could be used to construct replicas of the Smalltalk source browser, or static call graphs, or ad-hoc displays such as the callers of readers of variables that the selected function writes. All views are live: recompiling a function updates any displays that include its who-calls information, for example.


The outline view includes visual indicators that display whether a source record has unsaved changes, has changed since it was last compiled or has compiler-generated messages (warnings and errors).



User interface framework


Apple Dylan includes a user interface framework, written in Dylan by Mike Lockwood. The framework is tightly integrated with a WYSIWYG interface builder code-named Meccano, written by Robin Mair. The interface builder is linked into an application, allowing users to switch between Edit and Run modes while the application is running. “Decorators” are represented as graphical objects that can be dragged onto a user interface object to modify its behavior or appearance via object composition.



Implementation


The core of Apple Dylan is implemented in Macintosh Common Lisp (MCL), upon which the rest is implemented in Dylan. The Apple Cambridge office started life as an acquisition of Coral Software, the developers of Macintosh Common Lisp.


When Dylan was retargeted from the ARM to the desktop, the back end was modified to use APPLEX, a portable assembler designed by Wayne Loofbourrow's team in Apple Cupertino.



See also


  • History of the Dylan programming language


References





External links


Related to Apple Dylan



  • from Oliver Steele

  • from Open Dylan

  • "Last day at Apple/End of the Dylan project"




Comments

Post a Comment

Popular posts from this blog

Information security

Image
This article is part of a series on Information security Related security categories Internet security Cyberwarfare Computer security Mobile security Network security Threats Computer crime Vulnerability Eavesdropping Malware Spyware Ransomware Trojans Viruses Worms Rootkits Bootkits Keyloggers Screen scrapers Exploits Backdoors Logic bombs Payloads Denial of service Defenses Computer access control Application security Antivirus software Secure coding Secure by default Secure by design Secure operating systems Authentication Multi-factor authentication Authorization Data-centric security Encryption Firewall Intrusion detection system Mobile secure gateway Runtime application self-protection (RASP) v t e Information security , sometimes shortened to InfoSec , is the practice of preventing unauthorized access, use, disclosure, disruption, modification, inspection, recording or destruction of information. Th...
Read more

Lambak Kiri

Image
For Lambak Kiri public housing area, see Lambak Kiri Landless Indigenous Citizens' Housing Scheme. Village in Brunei-Muara, Brunei Lambak Kiri Village Location in Brunei Coordinates: 4°59′26″N 114°57′04″E  /  4.990472°N 114.951114°E  / 4.990472; 114.951114 Coordinates: 4°59′26″N 114°57′04″E  /  4.990472°N 114.951114°E  / 4.990472; 114.951114 Country Brunei District Brunei-Muara Mukim Berakas A Government  • Village head Hamdani Omar Postcode BB1214 Lambak Kiri is a populated place in Brunei-Muara District, Brunei. It is officially a village subdivision under Berakas A, a mukim in the district. Lambak Kiri may also refer to the greater area which includes the Lambak Kiri public housing area of the Landless Indigenous Citizens' Housing Scheme (Malay: Skim Tanah Kurnia Rakyat Jati ), although the latter is a separate subdivision. Contents 1 Name 2 Administration 3 See also 4 References Name ...
Read more

章鱼与海女图

Image
本条目 可参照英語維基百科相應條目来扩充 。 （2014/5/25） 若您熟悉来源语言和主题，请协助参考外语维基扩充条目。请勿直接提交机械翻译，也不要翻译不可靠、低品质内容。依版权协议，译文需在编辑摘要注明来源，或于讨论页顶部标记 {{Translated page}} 标签。 本条目 需要擴充。 （2013年8月15日） 请協助改善这篇條目，更進一步的信息可能會在討論頁或扩充请求中找到。请在擴充條目後將此模板移除。 《 章鱼与海女 》（日语： 蛸と海女 ／ たことあま   Tako to ama ）是一幅由日本畫家葛饰北斋创作的浮世绘，出自1814年（文化4年）出版的艳本《喜能会之故真通》（日语： 喜能会之故真通 ／ きのえのこまつ   Kinoe no Komatsu ）。畫中有兩隻章鱼以觸手攻擊一名採珠的海女，並進行擬似戀獸癖的交媾行為。作品尺寸为6½" × 8¾" （16.51 cm × 22.23 cm）。 [1] 在此之前的类似作品还有北尾重政的艳本《謡曲色番組》及勝川春潮的艳本《艳本千夜多女志》等，有被北斋作为参考的可能性。 《章鱼与海女图》有不同英文翻译，一般称The Dream of the Fisherman's Wife，又作Girl Diver and Octopi、Diver and Two Octopi，Richard Douglas Lane称其为 Girl Diver and Octopi [2] ，Mathi Forrer 称其为 Pearl Diver and Two Octopi [3] ，Danielle Talerico 称其为 Diver and Two Octopi 。 [4] 目录 1 作品介绍 1.1 画中对话 1.2 解释 2 评价 3 影响 3.1 模仿作品 4 另见 5 参考来源 6 外部連結 作品介绍 画中对话 原文 译文 大蛸： いつぞハいつぞハとねらいすましてゐたかいがあつて、けふといふけふ、とうとうとらまへたア。てもむつくりとしたいいぼぼだ。いもよりハなをこうぶつだ。サアサア、すつてすつてすいつくして...
Read more