Toward abstract interpretation of program transformations

Developers of program transformations often reason about transformations to assert certain properties of the generated code. We propose to apply abstract interpretation to program transformations in order to automate and support such reasoning. In this paper, we present work in progress on the development and application of an abstract interpreter for the program transformation language Stratego. In particular, we present challenges encountered during the development of the abstract Stratego interpreter and how we intend to solve these challenges.