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During the late 1970s and 1980s, object-oriented programming rose to prominence. The [[Flavors (programming language)|Flavors]] object-oriented Lisp was developed starting 1979, introducing [[multiple inheritance]] and [[mixins]].<ref>{{cite conference |last1=Moon |first1=David A. |author-link1=David A. Moon |date=June 1986 |title=Object-Oriented Programming with Flavors |book-title=Conference proceedings on Object-oriented Programming Systems Languages and Applications |pages=1–8 |isbn=978-0-89791-204-4 |conference=[[OOPSLA]] '86 |doi=10.1145/28697.28698 |s2cid=17150741 |url=https://www.cs.tufts.edu/comp/150FP/archive/david-moon/flavors.pdf |access-date=2022-03-17}}</ref> In 1981, Goldberg edited the August issue of [[Byte Magazine]], introducing Smalltalk and object-oriented programming to a wide audience.<ref>{{cite news |title=Introducing the Smalltalk Zoo |url=https://computerhistory.org/blog/introducing-the-smalltalk-zoo-48-years-of-smalltalk-history-at-chm/ |work=CHM |date=17 December 2020 |language=en}}</ref> LOOPS, the object system for [[Interlisp]]-D, was influenced by Smalltalk and Flavors, and a paper about it was published in 1982.<ref>{{cite conference | title=LOOPS: data and object oriented Programming for Interlisp|date=1982|conference=European AI Conference|last1=Bobrow|first1=D. G.|last2=Stefik|first2=M. J|url=https://www.markstefik.com/wp-content/uploads/2011/04/1982-Bobrow-Stefik-Data-Object-Pgming.pdf}}</ref> In 1986, the [[Association for Computing Machinery]] organized the first ''Conference on Object-Oriented Programming, Systems, Languages, and Applications'' (OOPSLA), which was attended by 1,000 people. Among other developments was the [[Common Lisp Object System]], which integrates functional programming and object-oriented programming and allows extension via a [[Meta-object protocol]]. In the 1980s, there were a few attempts to design processor architectures that included hardware support for objects in memory but these were not successful. Examples include the [[Intel iAPX 432]] and the [[Linn Products|Linn Smart]] [[Rekursiv]].
In the mid-1980s [[Objective-C]] was developed by [[Brad Cox]], who had used Smalltalk at [[ITT Inc.]]. [[Bjarne Stroustrup]], who had used Simula for his PhD thesis, created the object-oriented [[C++]].<ref name="Bertrand Meyer 2009 329"/> In 1985, [[Bertrand Meyer]] also produced the first design of the [[Eiffel language]]. Focused on software quality, Eiffel is a purely object-oriented programming language and a notation supporting the entire software lifecycle. Meyer described the Eiffel software development method, based on a small number of key ideas from software engineering and computer science, in [[Object-Oriented Software Construction]].{{sfn|Meyer|1997}} Essential to the quality focus of Eiffel is Meyer's reliability mechanism, [[Design by Contract]], which is an integral part of both the method and language.
In the early and mid-1990s object-oriented programming developed as the dominant programming [[paradigm]] when programming languages supporting the techniques became widely available. These included Visual [[FoxPro]] 3.0,<ref>1995 (June) Visual [[FoxPro]] 3.0, FoxPro evolves from a procedural language to an object-oriented language. Visual FoxPro 3.0 introduces a database container, seamless client/server capabilities, support for ActiveX technologies, and OLE Automation and null support. [http://www.foxprohistory.org/foxprotimeline.htm#summary_of_fox_releases Summary of Fox releases]</ref><ref>FoxPro History web site: [http://www.foxprohistory.org/tableofcontents.htm Foxprohistory.org]</ref><ref>1995 Reviewers Guide to Visual FoxPro 3.0: [http://www.dfpug.de/loseblattsammlung/migration/whitepapers/vfp_rg.htm DFpug.de]</ref> [[C++]],<ref>{{Cite book|url=https://books.google.com/books?id=MHmqfSBTXsAC&pg=PA16|title=Object Oriented Programming with C++, 1E|isbn=978-81-259-2532-3|last1=Khurana|first1=Rohit|date=1 November 2009|publisher=Vikas Publishing House Pvt Limited }}</ref> and [[Delphi (programming language)|Delphi]]{{Citation needed|date=February 2010}}. Its dominance was further enhanced by the rising popularity of [[graphical user interface]]s, which rely heavily upon object-oriented programming techniques. An example of a closely related dynamic GUI library and OOP language can be found in the [[Cocoa (software)|Cocoa]] frameworks on [[Mac OS X]], written in [[Objective-C]], an object-oriented, dynamic messaging extension to C based on Smalltalk. OOP toolkits also enhanced the popularity of [[event-driven programming]] (although this concept is not limited to OOP).
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===Real-world modeling and relationships===
OOP can be used to associate real-world objects and processes with digital counterparts. However, not everyone agrees that OOP facilitates direct real-world mapping or that real-world mapping is even a worthy goal; [[Bertrand Meyer]] argues in ''[[Object-Oriented Software Construction]]''
For example, the [[circle-ellipse problem]] is difficult to handle using OOP's concept of [[inheritance (object-oriented programming)|inheritance]].
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|publisher=[[Prentice Hall]]
|isbn=978-0-13-629155-8
|url=https://bertrandmeyer.com/OOSC2/
}}
* {{Cite book
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