principles:liskov_substitution_principle
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
principles:liskov_substitution_principle [2020-10-12 16:23] – old revision restored (2013-06-19 12:34) 159.69.186.191 | principles:liskov_substitution_principle [2021-10-18 21:50] (current) – +++ restored +++ christian | ||
---|---|---|---|
Line 17: | Line 17: | ||
===== Description ===== | ===== Description ===== | ||
- | Object-oriented programming languages | + | Object-oriented programming languages |
- | But the programming language does not enforce that the subtype | + | The programming language does not enforce that the subtype behaves like the supertype. Method '' |
Line 30: | Line 30: | ||
* Only strengthen invariants in subclasses; never weaken them | * Only strengthen invariants in subclasses; never weaken them | ||
- | * Only waken preconditions when overriding methods | + | * Only weaken |
* Only strengthen postconditions when overriding methods | * Only strengthen postconditions when overriding methods | ||
* Use Delegation instead of Inheritance | * Use Delegation instead of Inheritance | ||
Line 94: | Line 94: | ||
* Barbara H. Liskov , Jeanette M. Wing: // | * Barbara H. Liskov , Jeanette M. Wing: // | ||
* Barbara H. Liskov , Jeanette M. Wing: // | * Barbara H. Liskov , Jeanette M. Wing: // | ||
+ | |||
+ | ===== Discussion ===== | ||
+ | |||
+ | Discuss this wiki article and the principle on the corresponding [[talk: | ||
+ |
principles/liskov_substitution_principle.txt · Last modified: 2021-10-18 21:50 by christian