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bors 6635fe7db4 auto merge of #15989 : pcwalton/rust/borrowck-pattern-guards, r=pnkfelix the CFG for match statements. There were two bugs in issue #14684. One was simply that the borrow check didn't know about the correct CFG for match statements: the pattern must be a predecessor of the guard. This disallows the bad behavior if there are bindings in the pattern. But it isn't enough to prevent the memory safety problem, because of wildcards; thus, this patch introduces a more restrictive rule, which disallows assignments and mutable borrows inside guards outright. I discussed this with Niko and we decided this was the best plan of action. This breaks code that performs mutable borrows in pattern guards. Most commonly, the code looks like this: impl Foo { fn f(&mut self, ...) {} fn g(&mut self, ...) { match bar { Baz if self.f(...) => { ... } _ => { ... } } } } Change this code to not use a guard. For example: impl Foo { fn f(&mut self, ...) {} fn g(&mut self, ...) { match bar { Baz => { if self.f(...) { ... } else { ... } } _ => { ... } } } } Sometimes this can result in code duplication, but often it illustrates a hidden memory safety problem. Closes #14684. [breaking-change] r? @pnkfelix		2014-07-29 17:41:41 +00:00
man	rustc.1: fix typo	2014-07-16 08:01:59 +02:00
mk	mk: Print grammar info message like others	2014-07-25 14:32:34 -07:00
src	auto merge of #15989 : pcwalton/rust/borrowck-pattern-guards, r=pnkfelix	2014-07-29 17:41:41 +00:00
.gitattributes	webfonts: proper fix	2014-07-08 20:29:36 +02:00
.gitignore	Move llvm bindings to their own crate	2014-07-14 12:27:07 -07:00
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.travis.yml	travis: Move from travis_wait to time-passes	2014-07-01 20:21:16 -07:00
AUTHORS.txt	Updated release notes for 0.11.0	2014-06-30 07:25:58 -07:00
configure	configure: Add --enable-dist-host-only flag	2014-07-23 12:04:27 -07:00
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Makefile.in	Shuffle around check-lexer conditions	2014-07-21 18:38:40 -07:00
README.md	fix typo in readme	2014-06-30 11:17:25 +02:00
RELEASES.txt	Update RELEASES.txt	2014-07-05 00:22:59 -04:00

README.md

The Rust Programming Language

This is a compiler for Rust, including standard libraries, tools and documentation.

Quick Start

Download a binary installer for your platform.
Read the tutorial.
Enjoy!

Note: Windows users can read the detailed getting started notes on the wiki.

Building from Source

Make sure you have installed the dependencies:
- g++ 4.7 or clang++ 3.x
- python 2.6 or later (but not 3.x)
- perl 5.0 or later
- GNU make 3.81 or later
- curl
- git
Download and build Rust:

You can either download a tarball or build directly from the repo.

To build from the tarball do:
```
 $ curl -O http://static.rust-lang.org/dist/rust-nightly.tar.gz
 $ tar -xzf rust-nightly.tar.gz
 $ cd rust-nightly
```
Or to build from the repo do:
```
 $ git clone https://github.com/rust-lang/rust.git
 $ cd rust
```
Now that you have Rust's source code, you can configure and build it:
```
 $ ./configure
 $ make && make install
```
Note: You may need to use sudo make install if you do not normally have permission to modify the destination directory. The install locations can be adjusted by passing a --prefix argument to configure. Various other options are also supported, pass --help for more information on them.

When complete, make install will place several programs into /usr/local/bin: rustc, the Rust compiler, and rustdoc, the API-documentation tool.
Read the tutorial.
Enjoy!

Building on Windows

To easily build on windows we can use MSYS2:

Grab the latest MSYS2 installer and go through the installer.
Now from the MSYS2 terminal we want to install the mingw64 toolchain and the other tools we need.
```
 $ pacman -S mingw-w64-i686-toolchain
 $ pacman -S base-devel
```
With that now start mingw32_shell.bat from where you installed MSYS2 (i.e. C:\msys).
From there just navigate to where you have Rust's source code, configure and build it:
```
 $ ./configure --build=i686-pc-mingw32
 $ make && make install
```

Notes

Since the Rust compiler is written in Rust, it must be built by a precompiled "snapshot" version of itself (made in an earlier state of development). As such, source builds require a connection to the Internet, to fetch snapshots, and an OS that can execute the available snapshot binaries.

Snapshot binaries are currently built and tested on several platforms:

Windows (7, 8, Server 2008 R2), x86 only
Linux (2.6.18 or later, various distributions), x86 and x86-64
OSX 10.7 (Lion) or greater, x86 and x86-64

You may find that other platforms work, but these are our officially supported build environments that are most likely to work.

Rust currently needs about 1.5 GiB of RAM to build without swapping; if it hits swap, it will take a very long time to build.

There is a lot more documentation in the wiki.

License

Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.