122 Commits

Author SHA1 Message Date
Niko Matsakis
f95bb55a1c Move the scalar types out of static data so that we can put Rc into sty. 2014-12-30 09:34:38 -05:00
Niko Matsakis
986f654f3b Rename trait_ref field to predicate, since trait_ref is really
overly general, and the value is always *some* sort of predicate.
2014-12-30 09:32:42 -05:00
Niko Matsakis
4946e1a463 Move the TypeContents-based "Sized" queries into trans, where the full
types are always known and hence the ParameterEnvironment is not
necessary. For other `Sized` queries, use the trait infrastructure
just like `Copy`.
2014-12-30 09:32:42 -05:00
Huon Wilson
91db254c81 More rebase fixes. 2014-12-30 00:11:30 +11:00
Huon Wilson
ce3c949115 Intern BareFnTys to make sty slightly smaller.
This cuts the ty_bare_fn variant to 48 bytes rather than 56. There
doesn't seem to be a noticable memory usage decrease from this.
2014-12-29 23:55:24 +11:00
Huon Wilson
4f2b0f032a Store Substs in an arena in the tcx.
This current inflates memory use more than 3 times.
2014-12-29 23:55:24 +11:00
bors
4a4c89c7a4 auto merge of #20119 : FlaPer87/rust/oibit-send-and-friends, r=nikomatsakis
More work on opt-in built in traits. `Send` and `Sync` are not opt-in, `OwnedPtr` renamed to `UniquePtr` and the `Send` and `Sync` traits are now unsafe.

NOTE: This likely needs to be rebased on top of the yet-to-land snapshot.

r? @nikomatsakis 

cc #13231
2014-12-27 13:11:48 +00:00
Flavio Percoco
607f60712c Keep track of the whole error chain 2014-12-26 17:26:33 +01:00
Flavio Percoco
fb803a8570 Require types to opt-in Sync 2014-12-26 17:26:32 +01:00
Niko Matsakis
a583ba2fa0 Remove McResult from the mem-categorization interface. 2014-12-25 07:04:07 -05:00
Alex Crichton
de11710d80 rollup merge of #19891: nikomatsakis/unique-fn-types-3
Conflicts:
	src/libcore/str.rs
	src/librustc_trans/trans/closure.rs
	src/librustc_typeck/collect.rs
	src/libstd/path/posix.rs
	src/libstd/path/windows.rs
2014-12-22 12:51:23 -08:00
Alex Crichton
459f3b2cfa rollup merge of #20056: MrFloya/iter_rename
Conflicts:
	src/libcollections/bit.rs
	src/libcore/str.rs
2014-12-22 12:49:57 -08:00
Niko Matsakis
2a43b352f7 Rote changes that don't care to distinguish between a fn pointer and a fn item. 2014-12-22 12:27:07 -05:00
Florian Wilkens
f8cfd2480b Renaming of the Iter types as in RFC #344
libcore: slice::Items -> slice::Iter, slice::MutItems -> slice::IterMut
libcollections: *::Items -> *::Iter, *::MoveItems -> *::IntoIter, *::MutItems -> *::IterMut

This is of course a [breaking-change].
2014-12-22 12:58:55 +01:00
Alex Crichton
082bfde412 Fallout of std::str stabilization 2014-12-21 23:31:42 -08:00
Corey Farwell
98af642f5c Remove a ton of public reexports
Remove most of the public reexports mentioned in #19253

These are all leftovers from the enum namespacing transition

In particular:

* src/libstd/num/strconv.rs
 * ExponentFormat
 * SignificantDigits
 * SignFormat
* src/libstd/path/windows.rs
 * PathPrefix
* src/libstd/sys/windows/timer.rs
 * Req
* src/libcollections/str.rs
 * MaybeOwned
* src/libstd/collections/hash/map.rs
 * Entry
* src/libstd/collections/hash/table.rs
 * BucketState
* src/libstd/dynamic_lib.rs
 * Rtld
* src/libstd/io/net/ip.rs
 * IpAddr
* src/libstd/os.rs
 * MemoryMapKind
 * MapOption
 * MapError
* src/libstd/sys/common/net.rs
 * SocketStatus
 * InAddr
* src/libstd/sys/unix/timer.rs
 * Req

[breaking-change]
2014-12-21 09:26:41 -08:00
Jorge Aparicio
e64a0072d6 librustc: use #[deriving(Copy)] 2014-12-19 10:51:00 -05:00
Niko Matsakis
aa20e2ff36 Document new algorithm at a high-level. 2014-12-19 03:29:31 -05:00
Niko Matsakis
0b88c5d392 Remove text on method matching, which is now out of date. 2014-12-19 03:29:31 -05:00
Niko Matsakis
dab6e70e03 Convert gigantic comment away from //! form. It is annoying to
read (`//!` is intrusive) and annoying to edit (must maintain a prefix
on every line). Since the only purpose of a `doc.rs` file is to have a
bunch of text, using `/*!` and `*/` without indentations seems
appropriate.
2014-12-19 03:29:31 -05:00
Niko Matsakis
f45c0ef51e Implement "perfect forwarding" for HR impls (#19730). 2014-12-19 03:29:31 -05:00
Niko Matsakis
c2ca1a4b62 Make all predicates higher-ranked, not just trait references. 2014-12-19 03:29:30 -05:00
Niko Matsakis
1205fd88df Centralize on using Binder to introduce new binding levels, rather than having FnSig carry an implicit binding level. This means that we be more typesafe in general, since things that instantiate bound regions can drop the Binder to reflect that. 2014-12-19 03:29:30 -05:00
Niko Matsakis
416e62924e Rename the code that replaces unbound variables to "freshen" rather than "skolemize" -- strictly speaking, this is not skolemization, because it is not discharging quantifiers. Also, the trait selection code will still be doing true skolemization, so it would be a confusing overlap of names. 2014-12-19 03:29:30 -05:00
Niko Matsakis
3cf0fbeee9 Create distinct types for a PolyTraitRef (with bindings) and a normal TraitRef. 2014-12-19 03:29:30 -05:00
Flavio Percoco
127dac4990 Don't make unboxed closures implicitly copiable
The fix just checks if the bound is `Copy` and returns an `Err` if so.

Closes: #19817
2014-12-16 11:44:10 +01:00
Niko Matsakis
092d04a40a Rename FnStyle trait to Unsafety. 2014-12-14 11:11:55 -05:00
Niko Matsakis
d258d68db6 Remove proc types/expressions from the parser, compiler, and
language. Recommend `move||` instead.
2014-12-14 04:21:56 -05:00
Jorge Aparicio
1195708f64 librustc: use unboxed closures 2014-12-13 17:03:47 -05:00
Jorge Aparicio
fd06ef24bb librustc: fix fallout 2014-12-13 17:03:44 -05:00
Niko Matsakis
124e1e18cc Improve comments and address nits. 2014-12-12 20:25:21 -05:00
Niko Matsakis
97cf91aa30 Fix the opt-out-copy behavior so that values with dtor etc are considered affine 2014-12-12 20:25:21 -05:00
Niko Matsakis
9f492fefef Switch to using predicates to drive checking. Correct various tests --
in most cases, just the error message changed, but in some cases we
are reporting new errors that OUGHT to have been reported before but
we're overlooked (mostly involving the `'static` bound on `Send`).
2014-12-12 20:25:21 -05:00
Niko Matsakis
2be6c4f1ca Write code for registering region obligations (but don't use it yet). 2014-12-12 20:24:34 -05:00
Niko Matsakis
70be49d2c7 Move the list of region obligations into the fulfillment context. 2014-12-12 20:24:34 -05:00
Niko Matsakis
9bdd7f0040 Thread a id to Obligation 2014-12-12 20:24:34 -05:00
Niko Matsakis
4efaddf7c9 Start restructuring to support generalized where clauses etc. 2014-12-12 20:24:34 -05:00
Nick Cameron
ae8ba88424 Mostly non-behaviour-changing changes (style, etc.) 2014-12-12 19:11:59 +13:00
Nick Cameron
397dda8aa0 Add support for equality constraints on associated types 2014-12-12 19:11:59 +13:00
bors
ef4982f0f8 auto merge of #19466 : nikomatsakis/rust/recursion-limit, r=eddyb
This is particularly important for deeply nested types, which generate deeply nested impls. This is a fix for #19318. It's possible we could also improve this particular case not to increment the recursion count, but it's worth being able to adjust the recursion limit anyhow.

cc @jdm 
r? @pcwalton
2014-12-09 14:02:45 +00:00
Niko Matsakis
34812b891d Stop masking overflow and propagate it out more aggressively; also improve error reporting to suggest to user how to fix. 2014-12-08 15:51:38 -05:00
Niko Matsakis
3ee85d828e Kill dead code 2014-12-08 15:51:38 -05:00
Niko Matsakis
a16f60b117 Add a feature opt opt_out_copy that allows people to revert to the older
behavior temporarily. This feature will eventually transition to REJECTED.
2014-12-08 13:47:45 -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
Niko Matsakis
db75f8aa91 Move infer out of middle::typeck and into just middle. 2014-12-04 10:04:51 -05:00
Niko Matsakis
f2731ffb52 Adjust nits from pcwalton. 2014-12-04 01:49:42 -05:00
Niko Matsakis
39221a013f Implement the Fn trait for bare fn pointers in the compiler rather than doing it using hard-coded impls. This means that it works also for more complex fn types involving bound regions. Fixes #19126. 2014-12-04 01:49:42 -05:00
Niko Matsakis
d85ff16173 Treat builtin bounds like all other kinds of trait matches. Introduce a simple hashset in the fulfillment context to catch cases where we register the exact same obligation twice. This helps prevent duplicate error reports but also handles the recursive obligations created by builtin bounds. 2014-12-02 19:05:14 -05:00
jfager
232ffa039d Replace some verbose match statements with their if let equivalent.
No semantic changes, no enabling `if let` where it wasn't already enabled.
2014-11-29 16:41:21 -05:00
Alex Crichton
5816d7f530 More test fixes and rebase conflicts! 2014-11-26 18:10:57 -08:00