rust/src/libstd/io/util.rs, branch 1.0.0-beta

Test fixes and rebase conflicts, round 3

2015-04-01T00:39:24+00:00

std: Stabilize portions of the `io` module

2015-03-05T01:04:22+00:00

The new `io` module has had some time to bake and this commit stabilizes some of the utilities associated with it. This commit also deprecates a number of `std::old_io::util` functions and structures. These items are now `#[stable]` * `Cursor` * `Cursor::{new, into_inner, get_ref, get_mut, position, set_position}` * Implementations of I/O traits for `Cursor` * Delegating implementations of I/O traits for references and `Box` pointers * Implementations of I/O traits for primitives like slices and `Vec` * `ReadExt::bytes` * `Bytes` (and impls) * `ReadExt::chain` * `Chain` (and impls) * `ReadExt::take` (and impls) * `BufReadExt::lines` * `Lines` (and impls) * `io::copy` * `io::{empty, Empty}` (and impls) * `io::{sink, Sink}` (and impls) * `io::{repeat, Repeat}` (and impls) These items remain `#[unstable]` * Core I/O traits. These may want a little bit more time to bake along with the commonly used methods like `read_to_end`. * `BufReadExt::split` - this function may be renamed to not conflict with `SliceExt::split`. * `Error` - there are a number of questions about its representation, `ErrorKind`, and usability. These items are now `#[deprecated]` in `old_io` * `LimitReader` - use `take` instead * `NullWriter` - use `io::sink` instead * `ZeroReader` - use `io::repeat` instead * `NullReader` - use `io::empty` instead * `MultiWriter` - use `broadcast` instead * `ChainedReader` - use `chain` instead * `TeeReader` - use `tee` instead * `copy` - use `io::copy` instead [breaking-change]

std: Add `io` module again

2015-02-03T20:51:12+00:00

This commit is an implementation of [RFC 576][rfc] which adds back the `std::io` module to the standard library. No functionality in `std::old_io` has been deprecated just yet, and the new `std::io` module is behind the same `io` feature gate. [rfc]: https://github.com/rust-lang/rfcs/pull/576 A good bit of functionality was copied over from `std::old_io`, but many tweaks were required for the new method signatures. Behavior such as precisely when buffered objects call to the underlying object may have been tweaked slightly in the transition. All implementations were audited to use composition wherever possible. For example the custom `pos` and `cap` cursors in `BufReader` were removed in favor of just using `Cursor>`. A few liberties were taken during this implementation which were not explicitly spelled out in the RFC: * The old `LineBufferedWriter` is now named `LineWriter` * The internal representation of `Error` now favors OS error codes (a 0-allocation path) and contains a `Box` for extra semantic data. * The io prelude currently reexports `Seek` as `NewSeek` to prevent conflicts with the real prelude reexport of `old_io::Seek` * The `chars` method was moved from `BufReadExt` to `ReadExt`. * The `chars` iterator returns a custom error with a variant that explains that the data was not valid UTF-8.

std: Rename io to old_io

2015-01-27T00:01:16+00:00

In preparation for the I/O rejuvination of the standard library, this commit renames the current `io` module to `old_io` in order to make room for the new I/O modules. It is expected that the I/O RFCs will land incrementally over time instead of all at once, and this provides a fresh clean path for new modules to enter into as well as guaranteeing that all old infrastructure will remain in place for some time. As each `old_io` module is replaced it will be deprecated in-place for new structures in `std::{io, fs, net}` (as appropriate). This commit does *not* leave a reexport of `old_io as io` as the deprecation lint does not currently warn on this form of use. This is quite a large breaking change for all imports in existing code, but all functionality is retained precisely as-is and path statements simply need to be renamed from `io` to `old_io`. [breaking-change]

Fallout from stabilization.

2015-01-21T16:11:07+00:00

cleanup: `&foo[0..a]` -> `&foo[..a]`

2015-01-12T22:59:37+00:00

Implement Show for types in std::io::{buffered,util}

2015-01-11T01:32:54+00:00

A derived implementation would not be appropriate for the Buffered types since the buffer is both huge (64k by default) and full of uninitialized memory. Instead of printing the whole thing, we display how full it is. I also altered MultiWriter to make it generic over Writers instead of taking Box trait objects. Box implements Writer so existing use cases should continue to work, and this enables a more useful Show implementation in applicable cases. The change to MultiWriter may break code that uses it, but any fixes should be easy. [breaking-change]

use slicing sugar

2015-01-07T22:35:56+00:00

Replace full slice notation with index calls

2015-01-06T21:46:33+00:00

Remove deprecated functionality

2015-01-04T07:43:57+00:00

This removes a large array of deprecated functionality, regardless of how recently it was deprecated. The purpose of this commit is to clean out the standard libraries and compiler for the upcoming alpha release. Some notable compiler changes were to enable warnings for all now-deprecated command line arguments (previously the deprecated versions were silently accepted) as well as removing deriving(Zero) entirely (the trait was removed). The distribution no longer contains the libtime or libregex_macros crates. Both of these have been deprecated for some time and are available externally.