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License: Apache License 2.0
WebAssembly model in Redex
License: Apache License 2.0
Hi :-)!
I'm rather sure that there's a couple of bugs in your reductions for loops and blocks, at least they don't match the paper!
Consider this:
Now consider your code [0]:
(++> (in-hole E ((block (-> (t_1 ...) (t_2 ...)) e*_0) e*_1))
(in-hole E_outer (seq* (label k {ϵ} (in-hole E_v e*_0)) e*_1))
(where l ,(length (term (t_2 ...))))
(where k ,(length (term (t_1 ...))))
(where (E_outer E_v) (v-split E k))
block)
In the resulting reduction (label k ...)
should be (label l ...)
[0] https://github.com/takikawa/wasm-redex/blob/master/main.rkt#L711
Onwards consider this [1]:
(++> (in-hole E ((name e_loop (loop (-> (t_1 ...) (t_2 ...)) e*_0)) e*_1))
(in-hole E_outer (seq* e_lbl e*_1))
(where l ,(length (term (t_2 ...))))
(where k ,(length (term (t_1 ...))))
(where (E_outer E_v) (v-split E k))
(where e_lbl (label l {(seq e_loop)} (in-hole E_v e*_0)))
loop)
In e_lbl
(label l ...)
ought to be (label k ...)
.
[1] https://github.com/takikawa/wasm-redex/blob/master/main.rkt#L719
The difference in label arity is because of blocks being "forward-jumping" and loops being "backward-jumping".
Would you like me to make a pull request for these changes?
Regards, Johan
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