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rust/src/libstd/prelude/v1.rs

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std: Stabilize the prelude module 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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// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! The first version of the prelude of the standard library.
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#![stable(feature = "rust1", since = "1.0.0")]
std: Stabilize the prelude module 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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// Reexported core operators
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use marker::{Copy, Send, Sized, Sync};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use ops::{Drop, Fn, FnMut, FnOnce};
Test fixes and rebase conflicts
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std: Stabilize the prelude module 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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// Reexported functions
grandfathered -> rust1
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use mem::drop;
std: Stabilize the prelude module 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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// Reexported types and traits
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use boxed::Box;
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#[stable(feature = "rust1", since = "1.0.0")]
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#[doc(no_inline)] pub use char::CharExt;
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#[stable(feature = "rust1", since = "1.0.0")]
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#[doc(no_inline)] pub use clone::Clone;
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#[stable(feature = "rust1", since = "1.0.0")]
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#[doc(no_inline)] pub use cmp::{PartialEq, PartialOrd, Eq, Ord};
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#[stable(feature = "rust1", since = "1.0.0")]
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#[doc(no_inline)] pub use iter::DoubleEndedIterator;
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#[stable(feature = "rust1", since = "1.0.0")]
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#[doc(no_inline)] pub use iter::ExactSizeIterator;
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#[stable(feature = "rust1", since = "1.0.0")]
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#[doc(no_inline)] pub use iter::{Iterator, IteratorExt, Extend};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use option::Option::{self, Some, None};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use ptr::{PtrExt, MutPtrExt};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use result::Result::{self, Ok, Err};
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#[stable(feature = "rust1", since = "1.0.0")]
std::prelude: code consistency nits
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#[doc(no_inline)] pub use slice::{SliceExt, SliceConcatExt, AsSlice};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use str::{Str, StrExt};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use string::{String, ToString};
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#[stable(feature = "rust1", since = "1.0.0")]
Add 'feature' and 'since' to stability attributes
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#[doc(no_inline)] pub use vec::Vec;
std: Stabilize the prelude module 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
2014-12-22 11:04:23 -06:00
// NB: remove when path reform lands
Rename std::path to std::old_path As part of [RFC 474](https://github.com/rust-lang/rfcs/pull/474), this commit renames `std::path` to `std::old_path`, leaving the existing path API in place to ease migration to the new one. Updating should be as simple as adjusting imports, and the prelude still maps to the old path APIs for now. [breaking-change]
2015-01-29 16:03:36 -06:00
#[doc(no_inline)] pub use old_path::{Path, GenericPath};
std: Stabilize the prelude module 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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// NB: remove when I/O reform lands
Fallout of io => old_io
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#[doc(no_inline)] pub use old_io::{Buffer, Writer, Reader, Seek, BufferPrelude};
std: Stabilize the prelude module 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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// NB: remove when range syntax lands
Deprecate range, range_step, count, distributions This commit deprecates the `count`, `range` and `range_step` functions in `iter`, in favor of range notation. To recover all existing functionality, a new `step_by` adapter is provided directly on `ops::Range` and `ops::RangeFrom`. [breaking-change]
2015-03-13 13:35:53 -05:00
#[allow(deprecated)]
std: Stabilize the prelude module 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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#[doc(no_inline)] pub use iter::range;
Add `core::num::wrapping` and fix overflow errors. Many of the core rust libraries have places that rely on integer wrapping behaviour. These places have been altered to use the wrapping_* methods: * core::hash::sip - A number of macros * core::str - The `maximal_suffix` method in `TwoWaySearcher` * rustc::util::nodemap - Implementation of FnvHash * rustc_back::sha2 - A number of macros and other places * rand::isaac - Isaac64Rng, changed to use the Wrapping helper type Some places had "benign" underflow. This is when underflow or overflow occurs, but the unspecified value is not used due to other conditions. * collections::bit::Bitv - underflow when `self.nbits` is zero. * collections::hash::{map,table} - Underflow when searching an empty table. Did cause undefined behaviour in this case due to an out-of-bounds ptr::offset based on the underflowed index. However the resulting pointers would never be read from. * syntax::ext::deriving::encodable - Underflow when calculating the index of the last field in a variant with no fields. These cases were altered to avoid the underflow, often by moving the underflowing operation to a place where underflow could not happen. There was one case that relied on the fact that unsigned arithmetic and two's complement arithmetic are identical with wrapping semantics. This was changed to use the wrapping_* methods. Finally, the calculation of variant discriminants could overflow if the preceeding discriminant was `U64_MAX`. The logic in `rustc::middle::ty` for this was altered to avoid the overflow completely, while the remaining places were changed to use wrapping methods. This is because `rustc::middle::ty::enum_variants` now throws an error when the calculated discriminant value overflows a `u64`. This behaviour can be triggered by the following code: ``` enum Foo { A = U64_MAX, B } ``` This commit also implements the remaining integer operators for Wrapped<T>.
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#[doc(no_inline)] pub use num::wrapping::{Wrapping, WrappingOps};
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