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Diffstat (limited to 'checker/closure.ml')
| -rw-r--r-- | checker/closure.ml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/checker/closure.ml b/checker/closure.ml index bd7347134..58c80b521 100644 --- a/checker/closure.ml +++ b/checker/closure.ml @@ -651,6 +651,12 @@ let rec get_args n tys f e stk = get_args (n-na) etys f (subs_cons(l,e)) s | _ -> (Inr {norm=Cstr;term=FLambda(n,tys,f,e)}, stk) +(* Eta expansion: add a reference to implicit surrounding lambda at end of stack *) +let rec eta_expand_stack = function + | (Zapp _ | Zfix _ | Zcase _ | Zshift _ | Zupdate _ as e) :: s -> + e :: eta_expand_stack s + | [] -> + [Zshift 1; Zapp [|{norm=Norm; term= FRel 1}|]] (* Iota reduction: extract the arguments to be passed to the Case branches *) |