Commit Graph

19 Commits

Author SHA1 Message Date
Jorge Aparicio
bff462302b cleanup: s/impl Copy/#[derive(Copy)]/g 2015-01-25 11:20:38 -05:00
Niko Matsakis
096a28607f librustc: Make Copy opt-in.
This change makes the compiler no longer infer whether types (structures
and enumerations) implement the `Copy` trait (and thus are implicitly
copyable). Rather, you must implement `Copy` yourself via `impl Copy for
MyType {}`.

A new warning has been added, `missing_copy_implementations`, to warn
you if a non-generic public type has been added that could have
implemented `Copy` but didn't.

For convenience, you may *temporarily* opt out of this behavior by using
`#![feature(opt_out_copy)]`. Note though that this feature gate will never be
accepted and will be removed by the time that 1.0 is released, so you should
transition your code away from using it.

This breaks code like:

    #[deriving(Show)]
    struct Point2D {
        x: int,
        y: int,
    }

    fn main() {
        let mypoint = Point2D {
            x: 1,
            y: 1,
        };
        let otherpoint = mypoint;
        println!("{}{}", mypoint, otherpoint);
    }

Change this code to:

    #[deriving(Show)]
    struct Point2D {
        x: int,
        y: int,
    }

    impl Copy for Point2D {}

    fn main() {
        let mypoint = Point2D {
            x: 1,
            y: 1,
        };
        let otherpoint = mypoint;
        println!("{}{}", mypoint, otherpoint);
    }

This is the backwards-incompatible part of #13231.

Part of RFC #3.

[breaking-change]
2014-12-08 13:47:44 -05:00
Steven Fackler
3dcd215740 Switch to purely namespaced enums
This breaks code that referred to variant names in the same namespace as
their enum. Reexport the variants in the old location or alter code to
refer to the new locations:

```
pub enum Foo {
    A,
    B
}

fn main() {
    let a = A;
}
```
=>
```
pub use self::Foo::{A, B};

pub enum Foo {
    A,
    B
}

fn main() {
    let a = A;
}
```
or
```
pub enum Foo {
    A,
    B
}

fn main() {
    let a = Foo::A;
}
```

[breaking-change]
2014-11-17 07:35:51 -08:00
Eduard Burtescu
58bea31ca0 tests: remove uses of Gc. 2014-10-02 17:02:15 +03:00
Nick Cameron
ce0907e46e Add enum variants to the type namespace
Change to resolve and update compiler and libs for uses.

[breaking-change]

Enum variants are now in both the value and type namespaces. This means that
if you have a variant with the same name as a type in scope in a module, you
will get a name clash and thus an error. The solution is to either rename the
type or the variant.
2014-09-19 15:11:00 +12:00
Brian Anderson
aa48654740 Remove managed_box gate from tests
No longer does anything.
2014-07-26 21:05:29 -07:00
Alex Crichton
ade807c6dc rustc: Obsolete the @ syntax entirely
This removes all remnants of `@` pointers from rustc. Additionally, this removes
the `GC` structure from the prelude as it seems odd exporting an experimental
type in the prelude by default.

Closes #14193
[breaking-change]
2014-06-14 10:45:37 -07:00
Manish Goregaokar
713e87526e Use new attribute syntax in python files in src/etc too (#13478) 2014-04-14 21:00:31 +05:30
Patrick Walton
c3694d732e test: De-@mut the test suite 2014-01-03 14:02:01 -08:00
Alex Crichton
0f6537fed4 Gate literal box expressions in addition to types
Closes #10920
2013-12-12 00:49:57 -08:00
Corey Richardson
cc57ca012a Use assert_eq! rather than assert! where possible 2013-05-19 08:16:02 -04:00
Patrick Walton
1e91595520 librustc: Remove fail_unless! 2013-03-29 16:39:08 -07:00
Patrick Walton
d7e74b5e91 librustc: Convert all uses of assert over to fail_unless! 2013-03-07 22:37:57 -08:00
Patrick Walton
9143688197 librustc: Replace impl Type : Trait with impl Trait for Type. rs=implflipping 2013-02-14 14:44:12 -08:00
Graydon Hoare
89c8ef792f check-fast fallout from removing export, r=burningtree 2013-02-01 19:43:17 -08:00
Graydon Hoare
d1affff623 Reliciense makefiles and testsuite. Yup. 2012-12-10 17:32:58 -08:00
Brian Anderson
ecaf9e39c9 Convert alt to match. Stop parsing alt 2012-08-06 15:36:30 -07:00
Brian Anderson
025d86624d Switch alts to use arrows 2012-08-05 22:08:09 -07:00
Niko Matsakis
d1ec1d4abb Treat enums with one variant specially in borrowck: #2573 2012-06-12 14:30:14 -07:00