a0d05844ed
Previously, resolve was allowing impls, traits or classes that were nested within a fn to refer to upvars, as well as referring to type parameters bound by the fn. Fixing this required adding a new kind of def: def_typaram_binder, which can refer to any of an impl, trait or class that has bound ty params. resolve uses this to enforce that methods can refer to their parent item's type parameters, but not to outer items' type parameters; other stages ignore it. I also made sure that impl, trait and class methods get checked inside a MethodRibKind thing so as to forbid upvars, and changed the definition of MethodRibKind so that its second argument is an optional node_id (so that required trait method signatures can be checked with a MethodRibKind as well).
The Rust Programming Language
This is a compiler for Rust, including standard libraries, tools and documentation.
Installation
The Rust compiler is slightly unusual in that it is written in Rust and therefore must be built by a precompiled "snapshot" version of itself (made in an earlier state of development). As such, source builds require that:
-
You are connected to the internet, to fetch snapshots.
-
You can at least execute snapshot binaries of one of the forms we offer them in. Currently we build and test snapshots on:
- Windows (7, server 2008 r2) x86 only
- Linux 2.6.x (various distributions) x86 and x86-64
- OSX 10.6 ("Snow leopard") or 10.7 ("Lion") x86 and x86-64
You may find other platforms work, but these are our "tier 1" supported build environments that are most likely to work. Further platforms will be added to the list in the future via cross-compilation.
To build from source you will also need the following prerequisite packages:
- g++ 4.4 or clang++ 3.x
- python 2.6 or later
- perl 5.0 or later
- gnu make 3.81 or later
- curl
Assuming you're on a relatively modern Linux/OSX system and have met the prerequisites, something along these lines should work:
$ tar -xzf rust-0.3.tar.gz
$ cd rust-0.3
$ ./configure
$ make && make install
When complete, make install will place the following programs into /usr/local/bin:
- rustc, the Rust compiler
- rustdoc, the API-documentation tool
- cargo, the Rust package manager
In addition to a manual page under /usr/local/share/man and a set of host and target libraries under /usr/local/lib/rustc.
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.
License
Rust is primarily distributed under the terms of the MIT license, with portions covered by various BSD-like licenses.
See LICENSE.txt for complete terms of copyright and redistribution.
More help
The tutorial is a good starting point.