Commit Graph

9 Commits

Author SHA1 Message Date
Jakub Bukaj
2c744c7f32 Add test cases for E-needstest issues 2014-10-26 00:18:10 +02:00
P1start
b220db03bd Allow ! as the return type of proc/closure literals
Fixes #13490.
2014-08-29 17:24:55 +12:00
Niko Matsakis
1b487a8906 Implement generalized object and type parameter bounds (Fixes #16462) 2014-08-27 21:46:52 -04:00
Alex Crichton
1f760d5d1a Rename Share to Sync
This leaves the `Share` trait at `std::kinds` via a `#[deprecated]` `pub use`
statement, but the `NoShare` struct is no longer part of `std::kinds::marker`
due to #12660 (the build cannot bootstrap otherwise).

All code referencing the `Share` trait should now reference the `Sync` trait,
and all code referencing the `NoShare` type should now reference the `NoSync`
type. The functionality and meaning of this trait have not changed, only the
naming.

Closes #16281
[breaking-change]
2014-08-07 08:54:38 -07:00
Patrick Walton
ae067477fb libsyntax: Stop parsing + with no bounds after it.
This will break code that looks like `Box<Trait+>`. Change that code to
`Box<Trait>` instead.

Closes #14925.

[breaking-change]
2014-06-20 15:46:58 -07:00
Alex Crichton
ac1a27043a syntax: Fix parsing << with closure types
This uses the trick of replacing the << token with a < token to parse closure
types correctly.

Closes #13324
2014-05-13 17:24:08 -07:00
Alex Crichton
1237530452 Touch up and rebase previous commits
* Added `// no-pretty-expanded` to pretty-print a test, but not run it through
  the `expanded` variant.
* Removed #[deriving] and other expanded attributes after they are expanded
* Removed hacks around &str and &&str and friends (from both the parser and the
  pretty printer).
* Un-ignored a bunch of tests
2014-05-13 17:24:08 -07:00
Alex Crichton
c3ea3e439f Register new snapshots 2014-04-08 00:03:11 -07:00
Alex Crichton
d1c584e41b syntax: Tweak parsing lifetime bounds on closures
In summary these are some example transitions this change makes:

    'a ||       => ||: 'a
    proc:Send() => proc():Send

The intended syntax for closures is to put the lifetime bound not at the front
but rather in the list of bounds. Currently there is no official support in the
AST for bounds that are not 'static, so this case is currently specially handled
in the parser to desugar to what the AST is expecting. Additionally, this moves
the bounds on procedures to the correct position, which is after the argument
list.

The current grammar for closures and procedures is:

    procedure := 'proc' [ '<' lifetime-list '>' ] '(' arg-list ')'
                        [ ':' bound-list ] [ '->' type ]
    closure := [ 'unsafe' ] ['<' lifetime-list '>' ] '|' arg-list '|'
                        [ ':' bound-list ] [ '->' type ]
    lifetime-list := lifetime | lifetime ',' lifetime-list
    arg-list := ident ':' type | ident ':' type ',' arg-list
    bound-list := bound | bound '+' bound-list
    bound := path | lifetime

This does not currently handle the << ambiguity in `Option<<'a>||>`, I am
deferring that to a later patch. Additionally, this removes the support for the
obsolete syntaxes of ~fn and &fn.

Closes #10553
Closes #10767
Closes #11209
Closes #11210
Closes #11211
2014-04-06 00:08:21 -07:00