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This is an initial API stabilization pass for `std::ascii`. Aside from
some renaming to match conversion conventions, and deprecations in favor
of using iterators directly, almost nothing is changed here. However,
the static case conversion tables that were previously public are now private.
The stabilization of the (rather large!) set of extension traits is left
to a follow-up pass, because we hope to land some more general machinery
that will provide the same functionality without custom traits.
[breaking-change]
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'Numeric' is the proper name of the unicode character class,
and this frees up the word 'digit' for ascii use in libcore.
Since I'm going to rename `Char::is_digit_radix` to
`is_digit`, I am not leaving a deprecated method in place,
because that would just cause name clashes, as both
`Char` and `UnicodeChar` are in the prelude.
[breaking-change]
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The new `std::os::unix` module exposes several extension traits
for extracting file descriptors from `std::io` types.
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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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Previously, the entire runtime API surface was publicly exposed, but
that is neither necessary nor desirable. This commit hides most of the
module, using librustrt directly as needed. The arrangement will need to
be revisited when rustrt is pulled into std.
[breaking-change]
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With runtime removal complete, there's nothing left of libnative. This
commit removes it.
Fixes #18687
[breaking-change]
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This commit removes most of the remaining runtime infrastructure related
to the green/native split. In particular, it removes the `Runtime` trait
and instead inlines the native implementation.
Closes #17325
[breaking-change]
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r=steveklabnik
I have also renamed `fail` to `panic` in some non-documentation comments, where I thought it mattered.
Fixes #18677
cc @steveklabnik
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This macro is very rarely used, so there is no need (and it is better)
for it to avoid the abbreviation.
Closes rust-lang/rfcs#467.
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This macro is very rarely used, so there is no need (and it is better)
for it to avoid the abbreviation.
Closes rust-lang/rfcs#467.
[breaking-change]
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This commit changes `AsSlice` to work on unsized types, and changes the
`impl` for `&[T]` to `[T]`. Aside from making the trait more general,
this also helps some ongoing work with method resolution changes.
This is a breaking change: code that uses generics bounded by `AsSlice`
will have to change. In particular, such code previously often took
arguments of type `V` where `V: AsSlice<T>` by value. These should now
be taken by reference:
```rust
fn foo<Sized? V: AsSlice<T>>(v: &V) { .. }
```
A few std lib functions have been changed accordingly.
[breaking-change]
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This commit adds stability markers for the APIs that have recently been aligned with [numerics reform](https://github.com/rust-lang/rfcs/pull/369). For APIs that were changed as part of that reform, `#[unstable]` is used to reflect the recency, but the APIs will become `#[stable]` in a follow-up pass.
In addition, a few aspects of the APIs not explicitly covered by the RFC are marked here -- in particular, constants for floats.
This commit does not mark the `uint` or `int` modules as `#[stable]`, given the ongoing debate out the names and roles of these types.
Due to some deprecation (see the RFC for details), this is a:
[breaking-change]
r? @alexcrichton
cc @bjz
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This commit applies the stabilization of std::fmt as outlined in [RFC 380][rfc].
There are a number of breaking changes as a part of this commit which will need
to be handled to migrated old code:
* A number of formatting traits have been removed: String, Bool, Char, Unsigned,
Signed, and Float. It is recommended to instead use Show wherever possible or
to use adaptor structs to implement other methods of formatting.
* The format specifier for Boolean has changed from `t` to `b`.
* The enum `FormatError` has been renamed to `Error` as well as becoming a unit
struct instead of an enum. The `WriteError` variant no longer exists.
* The `format_args_method!` macro has been removed with no replacement. Alter
code to use the `format_args!` macro instead.
* The public fields of a `Formatter` have become read-only with no replacement.
Use a new formatting string to alter the formatting flags in combination with
the `write!` macro. The fields can be accessed through accessor methods on the
`Formatter` structure.
Other than these breaking changes, the contents of std::fmt should now also all
contain stability markers. Most of them are still #[unstable] or #[experimental]
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0380-stabilize-std-fmt.md
[breaking-change]
Closes #18904
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This commit applies the stabilization of std::fmt as outlined in [RFC 380][rfc].
There are a number of breaking changes as a part of this commit which will need
to be handled to migrated old code:
* A number of formatting traits have been removed: String, Bool, Char, Unsigned,
Signed, and Float. It is recommended to instead use Show wherever possible or
to use adaptor structs to implement other methods of formatting.
* The format specifier for Boolean has changed from `t` to `b`.
* The enum `FormatError` has been renamed to `Error` as well as becoming a unit
struct instead of an enum. The `WriteError` variant no longer exists.
* The `format_args_method!` macro has been removed with no replacement. Alter
code to use the `format_args!` macro instead.
* The public fields of a `Formatter` have become read-only with no replacement.
Use a new formatting string to alter the formatting flags in combination with
the `write!` macro. The fields can be accessed through accessor methods on the
`Formatter` structure.
Other than these breaking changes, the contents of std::fmt should now also all
contain stability markers. Most of them are still #[unstable] or #[experimental]
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0380-stabilize-std-fmt.md
[breaking-change]
Closes #18904
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This commit adds stability markers for the APIs that have recently been
aligned with [numerics
reform](https://github.com/rust-lang/rfcs/pull/369). For APIs that were
changed as part of that reform, `#[unstable]` is used to reflect the
recency, but the APIs will become `#[stable]` in a follow-up pass.
In addition, a few aspects of the APIs not explicitly covered by the RFC
are marked here -- in particular, constants for floats.
This commit does not mark the `uint` or `int` modules as `#[stable]`,
given the ongoing debate out the names and roles of these types.
Due to some deprecation (see the RFC for details), this is a:
[breaking-change]
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These functions can fail if:
- EINVAL: The name is empty, or contains an '=' character
- ENOMEM: Insufficient memory
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os::change_dir() returns bool, without a meaningful error message.
Change it to return IoResult<()> to indicate what IoError caused the
failure.
Fixes #16315.
[breaking-change]
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os::getcwd() panics if the current directory is not available. According
to getcwd(3), there are three cases:
- EACCES: Permission denied.
- ENOENT: The current working directory has been removed.
- ERANGE: The buffer size is less than the actual absolute path.
This commit makes os::getcwd() return IoResult<Path>, not just Path,
preventing it from panicking.
As os::make_absolute() depends on os::getcwd(), it is also modified to
return IoResult<Path>.
Fixes #16946.
[breaking-change]
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[breaking-change]
Deprecates `core::num::pow` in favor of `Int::pow`.
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r?
(I realise this needs a rebase, but I will probably have to chop it up in order to land and I'd like to get r+ first so I can do that quicker)
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The trait has an obvious, sensible implementation directly on vectors so
the MemWriter wrapper is unnecessary. This will halt the trend towards
providing all of the vector methods on MemWriter along with eliminating
the noise caused by conversions between the two types. It also provides
the useful default Writer methods on Vec<u8>.
After the type is removed and code has been migrated, it would make
sense to add a new implementation of MemWriter with seeking support. The
simple use cases can be covered with vectors alone, and ones with the
need for seeks can use a new MemWriter implementation.
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Signed-off-by: NODA, Kai <nodakai@gmail.com>
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Baby steps here...
Fixed some comments in liblog, libregex, librustc, libstd.
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This code is identical to io::util::copy()
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liblog, libregex, librustc, libstd
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This commit handles the fallout from deprecating `_with` and `_equiv` methods.
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This commit deprecates the `_equiv` family of methods on `HashMap` and
`HashSet` by instead generalizing the "normal" methods like `get` and
`remove` to use the new `std::borrow` infrastructure.
[breaking-change]
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Following [the collections reform
RFC](https://github.com/rust-lang/rfcs/pull/235),
this commit adds a new `borrow` module to libcore.
The module contains traits for borrowing data (`BorrowFrom` and
`BorrowFromMut`),
generalized cloning (`ToOwned`), and a clone-on-write smartpointer (`Cow`).
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This breaks code that referred to variant names in the same namespace as
their enum. Reexport the variants in the old location or alter code to
refer to the new locations:
```
pub enum Foo {
A,
B
}
fn main() {
let a = A;
}
```
=>
```
pub use self::Foo::{A, B};
pub enum Foo {
A,
B
}
fn main() {
let a = A;
}
```
or
```
pub enum Foo {
A,
B
}
fn main() {
let a = Foo::A;
}
```
[breaking-change]
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The forwards compatible parts of #18645, rebased. Converts implicit coercions from `[T, ..n]` to `&[T]` into explicit references.
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This moves chars() and lines() out of Buffer and into separate traits (CharsBuffer and LinesBuffer respectively) - this matches the pattern used for bytes() on Reader (with BytesReader).
(I came across this when I wanted a trait object of a Buffer, so that I could use read_line(); rustc errors about std::io::Buffer not being object-safe.)
[breaking-change]
Any uses of Buffer::lines() will need to use the new trait std::io::LinesBuffer.
The same is true for Buffer::chars() with std::io::CharsBuffer.
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