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$ perl -MO=Concise,-exec -e'@b = map { foo() } @a'
1  <0> enter
...
f  <2> aassign[t8] vKS/COMMON
g  <@> leave[1 ref] vKP/REFC
-e syntax OK

$ perl -MO=Concise,-exec -e'@b = grep { foo() } @a'
1  <0> enter
...
f  <2> aassign[t8] vKS/COMMON
g  <@> leave[1 ref] vKP/REFC
-e syntax OK

$ perl -MO=Concise,-exec -e'for (@a) { foo() }'
1  <0> enter
...
f  <2> leaveloop vK/2
g  <@> leave[1 ref] vKP/REFC
-e syntax OK

$ perl -MO=Concise,-exec -e'@b = sort foo @a'
1  <0> enter
...
c  <2> aassign[t5] vKS
d  <@> leave[1 ref] vKP/REFC
-e syntax OK

$ perl -MO=Concise,-exec -e'@b = sort { foo() } @a'
1  <0> enter
...
b  <2> aassign[t7] vKS
c  <@> leave[1 ref] vKP/REFC
-e syntax OK

$ perl -MO=Concise,-exec -e'sub faker(&); faker { foo() }'
1  <0> enter
...
8  <1> entersub[t3] vKS/TARG,1
9  <@> leave[1 ref] vKP/REFC
-e syntax OK

$ perl -MO=Concise,-exec -e'sub faker(&); faker sub { foo() }'
1  <0> enter
...
8  <1> entersub[t3] vKS/TARG,1
9  <@> leave[1 ref] vKP/REFC
-e syntax OK