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Theta Reference Manual


Preliminary Version


Barbara Liskov
Dorothy Curtis
Mark Day
Sanjay Ghemawat
Robert Gruber
Paul Johnson
Andrew C. Myers

Programming Methodology Group Memo 88This research was supported in part by the Advanced Research Projects Agency of the Department of Defense, monitored by the Office of Naval Research under contract N00014-91-J-4136 and in part by the National Science Foundation under Grant CCR-8822158.

The authors also wish to thank all the members of the Programming Methodology Group at MIT for their help and suggestions; there were many group meetings that helped us refine the Theta design.
MIT Laboratory for Computer Science
Cambridge, MA 02139

Wed Feb 08 14:20:14 EST 1995

This document describes a new programming language called Theta. Theta is a sequential, strongly-typed, object-oriented language. It provides separate mechanisms for type hierarchy, inheritance, and parametric polymorphism. It also provides separate mechanisms for specifications, which define the interfaces of new abstractions, and code that implements the new abstractions, and it allows multiple implementations of types and routines. It has a module mechanism that encapsulates the details of type and routine implementations, while allowing related implementations to share implementation-specific information. Theta is largely derived from CLU, but has also been influenced by Trellis/Owl, Modula-3, C++, and Emerald.





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