Object Pascal

Object Pascal is a collective term for Pascal dialects that have features which allow object-oriented programming (OOP). The first Pascal versions supporting OOP were Clascal and Macintosh Pascal. More modern implementations extend the class model as in Delphi and Free Pascal.

The first implementation of Object Pascal was developed by Larry Tesler at Apple Computer in collaboration with Niklaus Wirth.

Object Pascal implementations

This is a (probably incomplete) list of IDEs, compilers and dialects supporting Object Pascal:

• Clascal
• Mac Pascal
• THINK Pascal
• Metrowerks Pascal
• Turbo Pascal
• Delphi
• Kylix
• GNU Pascal
• Virtual Pascal
• Turbo51
• WDSibyl/OpenSibyl
• Free Pascal
• PascalABC.net
• Pascal Script
• Oxygene
• DWScript
• Smart Pascal
• MIDletPascal
• Speedsoft Sibyl and WDSibyl

Free Pascal modes for Object Pascal

The following modes support development with Object Pascal syntax with Free Pascal:

• Mode FPC
• Mode ObjFPC
• Mode TP
• Mode Delphi
• Mode MACPAS

See also

• Tao Yue's Basic Pascal Tutorial/ja
• Basic Pascal Tutorial/History
• Object Oriented Programming with Free Pascal and Lazarus/ja

References

1. Tesler, Larry (1985). "Object Pascal Report". Structured Language World. 9 (3): 10–7.

---

From the Free Pascal wiki, page "Object Pascal", as it stood on 2024-03-30 after a change by Ariben, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.