Lisaac

The Lisaac project is a result of the thesis done by Benoit Sonntag in collaboration with the Design Team of Loria. The project aims to solve the problem posed by the integration of object concepts into the core of Operating Systems. Isaac is the first Operating System to be designed fully with prototype-based object technology, which makes it highly effective.

Isaac brings out a unique point of view to the use of computers by taking advantage of the expressiveness and flexibility of prototypes extensively.

To achieve this project, a new prototype-based programming language had to be designed, known as Lisaac. Although Lisaac stands as Self's successor, it distinguishes itself in several ways, primarily due to system-programming constraints.

Lisaac allows for low-level programming while also remaining a high-level language. It has a powerful compiler that uses original compilation techniques to suppress late binding and optimize type predictions and code specialization. As a result, it provides the target code with an efficiency that no other language of the same type has been able to match thus far.

Overall, Lisaac project is a remarkable achievement that has brought a new perspective to prototype-based object technology in Operating Systems.