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- Martin Odersky, Matthias Zenger
- OOPSLA
- 2005
We identify three programming language abstractions for the construction of reusable components: abstract type members, explicit selftypes, and modular mixin composition. Together, these abstractions… (More)
- Martin Odersky, Philippe Altherr, +7 authors Matthias Zenger
- 2004
Scala fuses object-oriented and functional programming in a statically typed programming language. It is aimed at the construction of components and component systems. This paper gives an overview of… (More)
The expression problem is fundamental for the development of extensible software. Many (partial) solutions to this problem have been proposed in the past, but the question of how to use different,… (More)
- Jim Buckley, Tom Mens, Matthias Zenger, Awais Rashid, Günter Kniesel
- Journal of Software Maintenance
- 2005
Previous taxonomies of software change have focused on the purpose of the change (i.e., the why) rather than the underlying mechanisms. This paper proposes a taxonomy of software change based on… (More)
- Matthias Zenger, Martin Odersky
- ICFP
- 2001
A major problem for writing extensible software arises when recursively defined datatypes and operations on these types have to be extended simultaneously without modifying existing code. This paper… (More)
- Martin Odersky, Vincent Cremet, Christine Röckl, Matthias Zenger
- ECOOP
- 2003
We design and study νObj, a calculus and dependent type system for objects and classes which can have types as members. Type members can be aliases, abstract types, or new types. The type system can… (More)
- Martin Odersky, Christoph Zenger, Matthias Zenger
- POPL
- 2001
We present a type system for a language based on F≤, which allows certain type annotations to be elided in actual programs. Local type inference determines types by a combination of type… (More)
New extensions to programming languages are constantly being proposed. But implementing these extensions usually turns out to be a very difficult and expensive task, since conventional compilers… (More)
- Matthias Zenger
- Journal of Software Maintenance
- 2005
We present the programming language KERIS, an extension of Java with explicit support for software evolution. KERIS introduces extensible modules as the basic building blocks for software. Modules… (More)