// Resources can't be copied, but storing into data structures counts // as a move unless the stored thing is used afterwards. struct r { i: @mut int, } impl r : Drop { fn finalize() { *(self.i) = *(self.i) + 1; } } fn r(i: @mut int) -> r { r { i: i } } fn test_box() { let i = @mut 0; { let a = move @r(i); } assert *i == 1; } fn test_rec() { let i = @mut 0; { let a = move {x: r(i)}; } assert *i == 1; } fn test_tag() { enum t { t0(r), } let i = @mut 0; { let a = move t0(r(i)); } assert *i == 1; } fn test_tup() { let i = @mut 0; { let a = move (r(i), 0); } assert *i == 1; } fn test_unique() { let i = @mut 0; { let a = move ~r(i); } assert *i == 1; } fn test_box_rec() { let i = @mut 0; { let a = move @{ x: r(i) }; } assert *i == 1; } fn main() { test_box(); test_rec(); test_tag(); test_tup(); test_unique(); test_box_rec(); }