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go2:
go 2
d 1
nested_go2:
go 2
go2 2
d 1
n 1
d0 (go 2 would be bad):
go 1
d 0
go2 (in case crut):
go 2
d 1
go2 (in function call):
go 2
d 1
go2 (using surrounding interesting let):
go 2
d 1
n 1
go2 (using surrounding boring let):
go 2
d 1
z 0
two calls, one from let and from body (d 1 would be bad):
go 2
d 0
a thunk in a recursion (d 1 would be bad):
d 0
n 0
two thunks, one called multiple times (both arity 1 would be bad!):
d 0
n 1
two functions, not thunks:
go 2
go2 2
a thunk, called multiple times via a forking recursion (d 1 would be bad!):
go2 2
d 0
a function, one called multiple times via a forking recursion:
go 2
go2 2
two functions (recursive):
go 2
go2 2
mutual recursion (thunks), called mutiple times (both arity 1 would be bad!):
d 0
n 0
mutual recursion (functions), but no thunks:
go 2
go2 2
mutual recursion (functions), one boring (d 1 would be bad):
go 2
go2 2
d 0
a thunk (non-function-type), called twice, still calls once:
x 0
d 1
a thunk (function type), called multiple times, still calls once:
d 1
n 0
a thunk (non-function-type), in mutual recursion, still calls once (d 1 would be good):
go 2
x 0
d 0
a thunk (non-function-type), in mutual recursion, causes many calls (d 1 would be bad):
go 2
x 0
d 0
a thunk (function type), in mutual recursion, still calls once (d 1 would be good):
go 1
d 1
n 0
a thunk (non-function-type) co-calls with the body (d 1 would be bad):
x 0
d 0
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