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Python 3 Types in the Wild · It Will Never Work in Theory

Python 3 Types in the Wild · It Will Never Work in Theory
neverworkintheory.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from neverworkintheory.org Daily Mail and Mail on Sunday newspapers.

Martin Hirzel , Ingkarat Rak Amnouykit , Greg Wilson , Julian Dolby , Daniel Mccrevan , Programming Languages , Ana Milanova ,

Ashurst and Aurecon team up in 'industry-first' alliance

Global law firm Ashurst has partnered up with Aurecon in order to offer integrated risk consulting and technical and legal expertise to business leaders. The “industry first” alliance will see th ....

Paul Jenkins , Ashurst Aurecon , Lauren Croft , William Cox , Julian Dolby , Law Awards ,

artima - How to Write an Equality Method in Java


How to Write an Equality Method in Java
by Martin Odersky, Lex Spoon, and Bill Venners
June 1, 2009
equals method that preserves the contract of
equals even when subclassses of concrete classes add new fields.
In Item 8 of
1, Josh Bloch describes the difficulty of preserving the
equals contract when subclassing as a “fundamental problem of equivalence relations in object-oriented languages.” Bloch writes:
There is no way to extend an instantiable class and add a value component while preserving the equals contract, unless you are willing to forgo the benefits of object-oriented abstraction.
Chapter 28 of
Programming in Scala shows an approach that allows subclasses to extend an instantiable class, add a value component, and nevertheless preserve the ....

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