a couple simple illustrations:
proc sinkingLen(x: sink seq[int]):int = x.len
var s = @[1,2,3,4]
echo s.sinkingLen
Run
this warns, because s is a global variable. you can either explicitly move s:
echo sinkingLen(move(s))
echo s #s becomes @[] after the move
Run
or wrap everything in a `main` proc
proc main()=
var s = @[1,2,3,4]
echo s.sinkingLen
echo s
Run
but wait, here s is used after sinking into `sinkingLen`, so the compiler still
warns. you can solve this by rearranging:
proc main()=
var s = @[1,2,3,4]
echo s
echo s.sinkingLen
Run
