Stephane Hillion, The scheme package, http://www-sop.inria.fr/koala/shillion/sp/index.html  Home/Search   Document Not in Database   Summary   Related Articles

....were added. 5.1 Object type hierarchy An important issue for a Java implementation of Scheme is how the Scheme type hierarchy should be implemented as Java classes. A reasonable object oriented way is to implement the Scheme types is as a class hierarch under Object, as is done by Scheme package [18] and HotScheme [12] This way, most of the 150 or so Scheme primitives can be implemented as instance methods. While this simpli es the implementation, it requires wrapper objects that take more space and make crossing the Scheme Java frontier more costly since each Scheme type must be converted ....

....represented as an instance of the class EmptyList. All Jaja objects are serializable. Kawa: Kawa [11] is an ambitious Scheme implementation. It includes a Scheme to Java byte code compiler. Each function becomes a Java class compiled and loaded at runtime. Scheme package: In the Scheme package [18] the Scheme object Types are arranged in its own class hierarchy. Each primitive procedure is implemented as its own class. This requires over 250 class les, resulting in a 250 kilobyte .jar le. HotScheme: HotScheme [12] also uses a Scheme object hierarchy and one class per primitive as the ....

Stephane Hillion, The scheme package, http://www-sop.inria.fr/koala/shillion/sp/index.html

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