Walk Your Tree Any Way You Want
Chapter, Peer reviewed
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Software transformations in the Nuthatch style are described as walks over trees (possibly graphs) that proceed in programmerdefined steps which may observe join points of the walk, may observe and affect state associated with the walk, may rewrite the walked tree, may contribute to a built tree, and must walk somewhere, typically along one branch or another. The approach blends well with OO programming. We have implemented the approach in the Nuthatch/J library for Java.