src/interface.lisp contains a relatively low-level interface for interacting with QuilC via Coalton. Many (though far from all) QuilC internal data structures have Coalton wrapper types exposed, and many QuilC functions have Coalton wrapper functions exposed.

The set of wrapped types and operators is rather haphazard, and corresponds to the set of operations I (Phoebe Goldman) needed during my internship hacking on QuilC's addresser and backends. In particular, relatively few subclasses of Instruction are exposed; classical instructions are completely ignored, and GateApplication parameters are left opaque.

src/parsed-language.lisp defines a Coalton ADT representation of (a subset of) the Quil language. Particular focus is placed on rewiring and addressing applications; Instruction is a parametric type over the :qubit field, and defines a Functor instance so rewirings can be mapped over instructions.

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