Popart is an extensible aspect-oriented language. With Popart, alternative semantics for aspect-oriented abstractions can be defined by language designers. Popart exceeds the flexibility of extensible aspect compiler frameworks, where application developers are prevented from tailoring the language semantics in an application-specific manner. In contrast, Popart provides an architecture for aspect-oriented languages with an explicit meta-interface to language semantics. Popart supports several scenarios in which aspect-oriented programs use the meta-interface of the language to tailor its semantics to a particular application execution context.
