rust/src/test/run-pass/box-unbox.rs



type box<copy T> = {c: @T};

fn unbox<copy T>(b: box<T>) -> T { ret *b.c; }

fn main() {
    let foo: int = 17;
    let bfoo: box<int> = {c: @foo};
    #debug("see what's in our box");
    assert (unbox::<int>(bfoo) == foo);
}
Reformat source tree (minus a couple tests that are still grumpy). 2011-06-15 13:19:50 -05:00

Update stdlib, compiler, and tests to new kind system This involved adding 'copy' to more generics than I hoped, but an experiment with making it implicit showed that that way lies madness -- unless enforced, you will not remember to mark functions that don't copy as not requiring copyable kind. Issue #1177 2011-11-18 05:39:20 -06:00			`type box<copy T> = {c: @T};`
Populate tree. 2010-06-23 23:03:09 -05:00
Update stdlib, compiler, and tests to new kind system This involved adding 'copy' to more generics than I hoped, but an experiment with making it implicit showed that that way lies madness -- unless enforced, you will not remember to mark functions that don't copy as not requiring copyable kind. Issue #1177 2011-11-18 05:39:20 -06:00			`fn unbox<copy T>(b: box<T>) -> T { ret *b.c; }`
Populate tree. 2010-06-23 23:03:09 -05:00
			`fn main() {`
Reformat for new syntax 2011-07-27 07:19:39 -05:00			`let foo: int = 17;`
Port the tests to the typaram foo<T> syntax. 2011-08-10 11:27:22 -05:00			`let bfoo: box<int> = {c: @foo};`
Register snapshots and switch logging over to use of log_full or #error / #debug. 2011-12-22 16:42:52 -06:00			`#debug("see what's in our box");`
Port the tests to the expr foo::<T> syntax. 2011-08-13 02:10:18 -05:00			`assert (unbox::<int>(bfoo) == foo);`
Port the tests to the typaram foo<T> syntax. 2011-08-10 11:27:22 -05:00			`}`