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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]
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This gets rid of the 'experimental' level, removes the non-staged_api
case (i.e. stability levels for out-of-tree crates), and lets the
staged_api attributes use 'unstable' and 'deprecated' lints.
This makes the transition period to the full feature staging design
a bit nicer.
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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.
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Conflicts:
src/doc/guide.md
src/libcollections/bit.rs
src/libcollections/btree/node.rs
src/libcollections/slice.rs
src/libcore/ops.rs
src/libcore/prelude.rs
src/librand/rand_impls.rs
src/librustc/middle/check_match.rs
src/librustc/middle/infer/region_inference/mod.rs
src/librustc_driver/lib.rs
src/librustdoc/test.rs
src/libstd/bitflags.rs
src/libstd/io/comm_adapters.rs
src/libstd/io/mem.rs
src/libstd/io/mod.rs
src/libstd/io/net/pipe.rs
src/libstd/io/net/tcp.rs
src/libstd/io/net/udp.rs
src/libstd/io/pipe.rs
src/libstd/io/process.rs
src/libstd/io/stdio.rs
src/libstd/io/timer.rs
src/libstd/io/util.rs
src/libstd/macros.rs
src/libstd/os.rs
src/libstd/path/posix.rs
src/libstd/path/windows.rs
src/libstd/prelude/v1.rs
src/libstd/rand/mod.rs
src/libstd/rand/os.rs
src/libstd/sync/barrier.rs
src/libstd/sync/condvar.rs
src/libstd/sync/future.rs
src/libstd/sync/mpsc/mod.rs
src/libstd/sync/mpsc/mpsc_queue.rs
src/libstd/sync/mpsc/select.rs
src/libstd/sync/mpsc/spsc_queue.rs
src/libstd/sync/mutex.rs
src/libstd/sync/once.rs
src/libstd/sync/rwlock.rs
src/libstd/sync/semaphore.rs
src/libstd/sync/task_pool.rs
src/libstd/sys/common/helper_thread.rs
src/libstd/sys/unix/process.rs
src/libstd/sys/unix/timer.rs
src/libstd/sys/windows/c.rs
src/libstd/sys/windows/timer.rs
src/libstd/sys/windows/tty.rs
src/libstd/thread.rs
src/libstd/thread_local/mod.rs
src/libstd/thread_local/scoped.rs
src/libtest/lib.rs
src/test/auxiliary/cci_capture_clause.rs
src/test/bench/shootout-reverse-complement.rs
src/test/bench/shootout-spectralnorm.rs
src/test/compile-fail/array-old-syntax-2.rs
src/test/compile-fail/bind-by-move-no-guards.rs
src/test/compile-fail/builtin-superkinds-self-type.rs
src/test/compile-fail/comm-not-freeze-receiver.rs
src/test/compile-fail/comm-not-freeze.rs
src/test/compile-fail/issue-12041.rs
src/test/compile-fail/unsendable-class.rs
src/test/run-pass/builtin-superkinds-capabilities-transitive.rs
src/test/run-pass/builtin-superkinds-capabilities-xc.rs
src/test/run-pass/builtin-superkinds-capabilities.rs
src/test/run-pass/builtin-superkinds-self-type.rs
src/test/run-pass/capturing-logging.rs
src/test/run-pass/closure-bounds-can-capture-chan.rs
src/test/run-pass/comm.rs
src/test/run-pass/core-run-destroy.rs
src/test/run-pass/drop-trait-enum.rs
src/test/run-pass/hashmap-memory.rs
src/test/run-pass/issue-13494.rs
src/test/run-pass/issue-3609.rs
src/test/run-pass/issue-4446.rs
src/test/run-pass/issue-4448.rs
src/test/run-pass/issue-8827.rs
src/test/run-pass/issue-9396.rs
src/test/run-pass/ivec-tag.rs
src/test/run-pass/rust-log-filter.rs
src/test/run-pass/send-resource.rs
src/test/run-pass/send-type-inference.rs
src/test/run-pass/sendable-class.rs
src/test/run-pass/spawn-types.rs
src/test/run-pass/task-comm-0.rs
src/test/run-pass/task-comm-10.rs
src/test/run-pass/task-comm-11.rs
src/test/run-pass/task-comm-13.rs
src/test/run-pass/task-comm-14.rs
src/test/run-pass/task-comm-15.rs
src/test/run-pass/task-comm-16.rs
src/test/run-pass/task-comm-3.rs
src/test/run-pass/task-comm-4.rs
src/test/run-pass/task-comm-5.rs
src/test/run-pass/task-comm-6.rs
src/test/run-pass/task-comm-7.rs
src/test/run-pass/task-comm-9.rs
src/test/run-pass/task-comm-chan-nil.rs
src/test/run-pass/task-spawn-move-and-copy.rs
src/test/run-pass/task-stderr.rs
src/test/run-pass/tcp-accept-stress.rs
src/test/run-pass/tcp-connect-timeouts.rs
src/test/run-pass/tempfile.rs
src/test/run-pass/trait-bounds-in-arc.rs
src/test/run-pass/trivial-message.rs
src/test/run-pass/unique-send-2.rs
src/test/run-pass/unique-send.rs
src/test/run-pass/unwind-resource.rs
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This commit is an implementation of [RFC 503][rfc] which is a stabilization
story for the prelude. Most of the RFC was directly applied, removing reexports.
Some reexports are kept around, however:
* `range` remains until range syntax has landed to reduce churn.
* `Path` and `GenericPath` remain until path reform lands. This is done to
prevent many imports of `GenericPath` which will soon be removed.
* All `io` traits remain until I/O reform lands so imports can be rewritten all
at once to `std::io::prelude::*`.
This is a breaking change because many prelude reexports have been removed, and
the RFC can be consulted for the exact list of removed reexports, as well as to
find the locations of where to import them.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md
[breaking-change]
Closes #20068
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r? eddyb
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This commit is a second pass stabilization for the `std::comm` module,
performing the following actions:
* The entire `std::comm` module was moved under `std::sync::mpsc`. This movement
reflects that channels are just yet another synchronization primitive, and
they don't necessarily deserve a special place outside of the other
concurrency primitives that the standard library offers.
* The `send` and `recv` methods have all been removed.
* The `send_opt` and `recv_opt` methods have been renamed to `send` and `recv`.
This means that all send/receive operations return a `Result` now indicating
whether the operation was successful or not.
* The error type of `send` is now a `SendError` to implement a custom error
message and allow for `unwrap()`. The error type contains an `into_inner`
method to extract the value.
* The error type of `recv` is now `RecvError` for the same reasons as `send`.
* The `TryRecvError` and `TrySendError` types have had public reexports removed
of their variants and the variant names have been tweaked with enum
namespacing rules.
* The `Messages` iterator is renamed to `Iter`
This functionality is now all `#[stable]`:
* `Sender`
* `SyncSender`
* `Receiver`
* `std::sync::mpsc`
* `channel`
* `sync_channel`
* `Iter`
* `Sender::send`
* `Sender::clone`
* `SyncSender::send`
* `SyncSender::try_send`
* `SyncSender::clone`
* `Receiver::recv`
* `Receiver::try_recv`
* `Receiver::iter`
* `SendError`
* `RecvError`
* `TrySendError::{mod, Full, Disconnected}`
* `TryRecvError::{mod, Empty, Disconnected}`
* `SendError::into_inner`
* `TrySendError::into_inner`
This is a breaking change due to the modification of where this module is
located, as well as the changing of the semantics of `send` and `recv`. Most
programs just need to rename imports of `std::comm` to `std::sync::mpsc` and
add calls to `unwrap` after a send or a receive operation.
[breaking-change]
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This commit is an implementation of [RFC 503][rfc] which is a stabilization
story for the prelude. Most of the RFC was directly applied, removing reexports.
Some reexports are kept around, however:
* `range` remains until range syntax has landed to reduce churn.
* `Path` and `GenericPath` remain until path reform lands. This is done to
prevent many imports of `GenericPath` which will soon be removed.
* All `io` traits remain until I/O reform lands so imports can be rewritten all
at once to `std::io::prelude::*`.
This is a breaking change because many prelude reexports have been removed, and
the RFC can be consulted for the exact list of removed reexports, as well as to
find the locations of where to import them.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md
[breaking-change]
Closes #20068
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This test would read with a timeout and then send a UDP message, expecting the
message to be received. The receiving port, however, was bound in the child
thread so it could be the case that the timeout and send happens before the
child thread runs. To remedy this we just bind the port before the child thread
runs, moving it into the child later on.
cc #19120
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In regards to:
https://github.com/rust-lang/rust/issues/19253#issuecomment-64836729
This commit:
* Changes the #deriving code so that it generates code that utilizes fewer
reexports (in particur Option::* and Result::*), which is necessary to
remove those reexports in the future
* Changes other areas of the codebase so that fewer reexports are utilized
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This commit adds a `AsInner` trait to `sys_common` and provides
implementations on many `std::io` types. This is a building block for
exposing platform-specific APIs that hook into `std::io` types.
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This patch continues the runtime removal by moving pipe and
networking-related code into `sys`.
Because this eliminates APIs in `libnative` and `librustrt`, it is a:
[breaking-change]
This functionality is likely to be available publicly, in some form,
from `std` in the future.
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UdpSocket constructor methods now use ToSocketAddr trait instead of
SocketAddr.
[breaking-change]
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https://github.com/rust-lang/rfcs/pull/221
The current terminology of "task failure" often causes problems when
writing or speaking about code. You often want to talk about the
possibility of an operation that returns a Result "failing", but cannot
because of the ambiguity with task failure. Instead, you have to speak
of "the failing case" or "when the operation does not succeed" or other
circumlocutions.
Likewise, we use a "Failure" header in rustdoc to describe when
operations may fail the task, but it would often be helpful to separate
out a section describing the "Err-producing" case.
We have been steadily moving away from task failure and toward Result as
an error-handling mechanism, so we should optimize our terminology
accordingly: Result-producing functions should be easy to describe.
To update your code, rename any call to `fail!` to `panic!` instead.
Assuming you have not created your own macro named `panic!`, this
will work on UNIX based systems:
grep -lZR 'fail!' . | xargs -0 -l sed -i -e 's/fail!/panic!/g'
You can of course also do this by hand.
[breaking-change]
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Spring cleaning is here! In the Fall! This commit removes quite a large amount
of deprecated functionality from the standard libraries. I tried to ensure that
only old deprecated functionality was removed.
This is removing lots and lots of deprecated features, so this is a breaking
change. Please consult the deprecation messages of the deleted code to see how
to migrate code forward if it still needs migration.
[breaking-change]
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[breaking-change]
If you are using slicing syntax you will need to add #![feature(slicing_syntax)] to your crate.
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This reverts commit 40b9f5ded50ac4ce8c9323921ec556ad611af6b7.
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This reverts commit 95cfc35607ccf5f02f02de56a35a9ef50fa23a82.
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[breaking-change]
If you are using slicing syntax you will need to add #![feature(slicing_syntax)] to your crate.
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This commit removes the `iotest!` macro from `std::io`. The macro was
primarily used to ensure that all io-related tests were run on both
libnative and libgreen/librustuv. However, now that the librustuv stack
is being removed, the macro is no longer needed.
See the [runtime removal
RFC](https://github.com/rust-lang/rfcs/pull/230) for more context.
[breaking-change]
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cc #17490
Reopening of #16230
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Replace `#[ignore(cfg(a, b))]` with `#[cfg_attr(all(a, b), ignore)]`
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This PR is the outcome of the library stabilization meeting for the
`liballoc::owned` and `libcore::cell` modules.
Aside from the stability attributes, there are a few breaking changes:
* The `owned` modules is now named `boxed`, to better represent its
contents. (`box` was unavailable, since it's a keyword.) This will
help avoid the misconception that `Box` plays a special role wrt
ownership.
* The `AnyOwnExt` extension trait is renamed to `BoxAny`, and its `move`
method is renamed to `downcast`, in both cases to improve clarity.
* The recently-added `AnySendOwnExt` extension trait is removed; it was
not being used and is unnecessary.
[breaking-change]
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We leave them for compatibility, but mark them as deprecated.
Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
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POSIX has recvfrom(2) and sendto(2), but their name seem not to be
suitable with Rust. We already renamed getpeername(2) and
getsockname(2), so I think it makes sense.
Alternatively, `receive_from` would be fine. However, we have `.recv()`
so I chose `recv_from`.
Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
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This breaks a fair amount of code. The typical patterns are:
* `for _ in range(0, 10)`: change to `for _ in range(0u, 10)`;
* `println!("{}", 3)`: change to `println!("{}", 3i)`;
* `[1, 2, 3].len()`: change to `[1i, 2, 3].len()`.
RFC #30. Closes #6023.
[breaking-change]
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1. Wherever the `buf` field of a `Formatter` was used, the `Formatter` is used
instead.
2. The usage of `write_fmt` is minimized as much as possible, the `write!` macro
is preferred wherever possible.
3. Usage of `fmt::write` is minimized, favoring the `write!` macro instead.
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This commit revisits the `cast` module in libcore and libstd, and scrutinizes
all functions inside of it. The result was to remove the `cast` module entirely,
folding all functionality into the `mem` module. Specifically, this is the fate
of each function in the `cast` module.
* transmute - This function was moved to `mem`, but it is now marked as
#[unstable]. This is due to planned changes to the `transmute`
function and how it can be invoked (see the #[unstable] comment).
For more information, see RFC 5 and #12898
* transmute_copy - This function was moved to `mem`, with clarification that is
is not an error to invoke it with T/U that are different
sizes, but rather that it is strongly discouraged. This
function is now #[stable]
* forget - This function was moved to `mem` and marked #[stable]
* bump_box_refcount - This function was removed due to the deprecation of
managed boxes as well as its questionable utility.
* transmute_mut - This function was previously deprecated, and removed as part
of this commit.
* transmute_mut_unsafe - This function doesn't serve much of a purpose when it
can be achieved with an `as` in safe code, so it was
removed.
* transmute_lifetime - This function was removed because it is likely a strong
indication that code is incorrect in the first place.
* transmute_mut_lifetime - This function was removed for the same reasons as
`transmute_lifetime`
* copy_lifetime - This function was moved to `mem`, but it is marked
`#[unstable]` now due to the likelihood of being removed in
the future if it is found to not be very useful.
* copy_mut_lifetime - This function was also moved to `mem`, but had the same
treatment as `copy_lifetime`.
* copy_lifetime_vec - This function was removed because it is not used today,
and its existence is not necessary with DST
(copy_lifetime will suffice).
In summary, the cast module was stripped down to these functions, and then the
functions were moved to the `mem` module.
transmute - #[unstable]
transmute_copy - #[stable]
forget - #[stable]
copy_lifetime - #[unstable]
copy_mut_lifetime - #[unstable]
[breaking-change]
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This was intended as part of the I/O timeouts commit, but it was mistakenly
forgotten. The type of the timeout argument is not guaranteed to remain constant
into the future.
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