ConstThe expressions a capturing call holds on to.
ReadonlyevaluateIn: <Info>(Links every name in expr against environment and hands back what stays unresolved.
What id within captured code needs to run at all: the capturing call and every call evaluating it (eval, body(f) <- quote(...)).
The finishing pass over a complete graph: it settles what a call really evaluates, which the call itself could not know.
Every expression the value at id may hold, with the call that captured it. Several is normal.
A language object reads nothing where it is written and everything where it reaches
eval, with the bindings in effect there.