Metaprogramming is the process of writing computer programs that treat programs as data,
enabling them to analyze or transform existing programs or generate new ones. While the …

Building software product lines (SPLs) with features is a challenging task. Many SPL
implementations support features with coarse granularity-eg, the ability to add and wrap …

Software product lines can be implemented with many different approaches. However, there
are common underlying mechanisms which allow a classification into compositional and …

Objects model the world, and state is fundamental to a faithful modeling. Engineers use state
machines to understand and reason about state transitions, but programming languages …

Implementing software product lines is a challenging task. Depending on the
implementation technique the code that realizes a feature is often scattered across multiple …

Nominal and structural subty** each have their own strengths and weaknesses. Nominal
subty** allows programmers to explicitly express design intent, and, when types are …

The term traits is overloaded in the literature. In this work we refer to traits as the stateless
model and implementation described in Schaerli et al. articles. Traits provide a flexible way …

A software product line (SPL) is a set of software systems with well-defined commonalities
and variabilities that are developed by managed reuse of common artifacts. In this paper, we …

Recently, language extensions have been proposed for Java and C# to support pattern-
based reflective declaration. These extensions introduce a disciplined form of meta …

This paper presents a unified model for two complementary approaches of code reuse:
Traits and Delta-Oriented Programming (DOP). Traits are used to modularly construct …