To back up what I said, 

>perl -MO=Concise,-exec -e"(LIST_EXPR)[INDEX_EXPR]"
1  <0> enter
2  <;> nextstate(main 1 -e:1) v:{
3  <0> pushmark s
4  <$> const[PV "INDEX_EXPR"] s/BARE
5  <0> pushmark s
6  <$> const[PV "LIST_EXPR"] s/BARE
7  <2> lslice vK/2
8  <@> leave[1 ref] vKP/REFC
-e syntax OK

[download]

Or a more à propos example, 

>perl -MO=Concise,-exec -e"(split)[$x..$y]"
1  <0> enter
2  <;> nextstate(main 1 -e:1) v:{
3  <0> pushmark s
4  <|> range(other->5)[t5] lK/1        <--------
5      <#> gvsv[*y] s
6      <1> flop lK
           goto 7
e  <#> gvsv[*x] s
f  <1> flip[t6] lK
7  <0> pushmark s
8  </> pushre(/" "/) s*/64
9  <#> gvsv[*_] s
a  <$> const[IV 0] s
b  <@> split[t2] lK                    <--------
c  <2> lslice vK/2
d  <@> leave[1 ref] vKP/REFC
-e syntax OK

[download]

Now, I suspect the relative order in which the expressions are evaluated is arbitrary. It could be changed if it would be deemed useful to evaluate them in the other order.

In reply to Re^3: Getting range from N..end with list slice by ikegami
in thread Getting range from N..end with list slice by Marshall

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