- The environments play absolutely no role in the simplified V1 interpreter
- presented here. In the fuller code, they have a limited role in the V1
- interpreter. In the V2 interpreter, the environments are essential.
-
- The two interpreters presented below are (V1) a substitute-and-replace
- interpreter, and (V2) an environment-based interpreter. We discuss the
- differences between these in the notes.
+ The two interpreters presented below are (VersionA) a substitute-and-replace
+ interpreter, and (VersionB) an environment-based interpreter. We discuss the
+ differences between these in the course notes.