Non-linear type extensions

Authors:
Bob Brown
Affiliations:
Hong Kong Polytechnic, Department of Computing, Hong Kong
Venue:
ACM SIGPLAN Notices
Year:
1994

Citing 8
Cited 1

Type extensions

ACM Transactions on Programming Languages and Systems (TOPLAS)
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Run-time design for object-oriented extensions to Pascal

CSC '95 Proceedings of the 1995 ACM 23rd annual conference on Computer science

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Abstract

Type extension is a language facility proposed by N. Wirth and included in the programming language Oberon. The facility allows a type to be created based on another type while maintaining a hierarchic type relationship. This paper gives an introduction to the type extension facility as it is implemented in Oberon and shows how it can be generalised to allow a non-linear type hierarchy to be constructed and discriminated.