[rust-dev] problems with adding an element to a ' @' vector.
pwalton at mozilla.com
Mon Dec 10 14:38:50 PST 2012
On 12/10/12 2:34 PM, Peter Ronnquist wrote:
> I am having problems with adding an element to a '@' vector in rust 0.4.
> The following works fine with a "~" vector but not with a '@' vector:
> let mut objects_1 : &mut ~[Object] = &mut ~;
> let mut objects_2 : &mut @[Object] = &mut @;
> objects_2.push(Bat_(bat)); // Line 124
Appending to an `@` vector would require copying the entire vector, just
as with arrays in Java. (We should still probably support `push` on it
with this performance caveat, but that's the reason why we don't right now.)
If you want to append to a vector, you probably want the `DVec` type, or
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