Z++

Z++ (pronounced zed plus plus) is an object-oriented extension to the Z specification language.

Z++ allows for the definition of classes, and the relation of classes through inheritance, association, or aggregation. The primary construct of Z++ is a class. A Z++ class consists of a number of clauses which are optional.

Z++ class structure

 
CLASS ClassName
  [OWNS List_of_attributes]
  [FUNCTIONS constant_definitions]
  [TYPE type_declaration]
  [ENTENDS list_of_super_classes]
  [OPERATIONS list_of_state_change_operations_definitions]
  [RETURNS list_of_query_operations_definitions]
  [ACTIONS all_operations_declarations]
  [INVARIANT predicates]
  [HISTORY RTL_predicates]
END CLASS
gollark: Dropping per-file headers entirely would make various things nicer, but also probably decrease the format's resilience to cryoapiaristic entities.
gollark: Also, filenames are not fixed-length, thusly things.
gollark: I want to avoid actually writing parsing code as much as practical.
gollark: Specifically, moving the per-file headers to go *after* the files or perhaps entirely removing them, and length-prefixing both actual file content and the per-file metadata.
gollark: <@309787486278909952> Given various difficulties with implementing another implementation of the decompressor, I'm thinking about some changes.

See also

References

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

  • Lano, K.C., Z++, an Object-Oriented Extension to Z. Z User Workshop, Oxford 1990, Springer, Workshops in Computing, 1991, pp. 151–172.
  • Lano, K.C., Formal Object-Oriented Development. Springer-Verlag, London, 1995.
  • AAOB - Thesis 2009.
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