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This commit entirely removes the old I/O, path, and rand modules. All
functionality has been deprecated and unstable for quite some time now!
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Now that support has been removed, all lingering use cases are renamed.
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This commit:
* Introduces `std::convert`, providing an implementation of
RFC 529.
* Deprecates the `AsPath`, `AsOsStr`, and `IntoBytes` traits, all
in favor of the corresponding generic conversion traits.
Consequently, various IO APIs now take `AsRef<Path>` rather than
`AsPath`, and so on. Since the types provided by `std` implement both
traits, this should cause relatively little breakage.
* Deprecates many `from_foo` constructors in favor of `from`.
* Changes `PathBuf::new` to take no argument (creating an empty buffer,
as per convention). The previous behavior is now available as
`PathBuf::from`.
* De-stabilizes `IntoCow`. It's not clear whether we need this separate trait.
Closes #22751
Closes #14433
[breaking-change]
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This commit removes the reexports of `old_io` traits as well as `old_path` types
and traits from the prelude. This functionality is now all deprecated and needs
to be removed to make way for other functionality like `Seek` in the `std::io`
module (currently reexported as `NewSeek` in the io prelude).
Closes #23377
Closes #23378
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This commit stabilizes essentially all of the new `std::path` API. The
API itself is changed in a couple of ways (which brings it in closer
alignment with the RFC):
* `.` components are now normalized away, unless they appear at the
start of a path. This in turn effects the semantics of e.g. asking for
the file name of `foo/` or `foo/.`, both of which yield `Some("foo")`
now. This semantics is what the original RFC specified, and is also
desirable given early experience rolling out the new API.
* The `parent` function now succeeds if, and only if, the path has at
least one non-root/prefix component. This change affects `pop` as
well.
* The `Prefix` component now involves a separate `PrefixComponent`
struct, to better allow for keeping both parsed and unparsed prefix data.
In addition, the `old_path` module is now deprecated.
Closes #23264
[breaking-change]
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This commit deprecates the majority of std::old_io::fs in favor of std::fs and
its new functionality. Some functions remain non-deprecated but are now behind a
feature gate called `old_fs`. These functions will be deprecated once
suitable replacements have been implemented.
The compiler has been migrated to new `std::fs` and `std::path` APIs where
appropriate as part of this change.
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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]
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sed -i 's/in range(\([^,]*\), *\([^()]*\))/in \1\.\.\2/g' **/*.rs
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Conflicts:
src/libserialize/serialize.rs
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Conflicts:
src/liballoc/boxed.rs
src/libcollections/btree/map.rs
src/libcollections/slice.rs
src/libcore/borrow.rs
src/libcore/cmp.rs
src/libcore/ops.rs
src/libstd/c_str.rs
src/libstd/collections/hash/map.rs
src/libsyntax/parse/obsolete.rs
src/test/compile-fail/unboxed-closure-sugar-default.rs
src/test/compile-fail/unboxed-closure-sugar-equiv.rs
src/test/compile-fail/unboxed-closure-sugar-lifetime-elision.rs
src/test/compile-fail/unboxed-closure-sugar-region.rs
src/test/compile-fail/unsized3.rs
src/test/run-pass/associated-types-conditional-dispatch.rs
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This commit moves the libserialize crate (and will force the hand of the
rustc-serialize crate) to not require the `old_orphan_check` feature gate as
well as using associated types wherever possible. Concretely, the following
changes were made:
* The error type of `Encoder` and `Decoder` is now an associated type, meaning
that these traits have no type parameters.
* The `Encoder` and `Decoder` type parameters on the `Encodable` and `Decodable`
traits have moved to the corresponding method of the trait. This movement
alleviates the dependency on `old_orphan_check` but implies that
implementations can no longer be specialized for the type of encoder/decoder
being implemented.
Due to the trait definitions changing, this is a:
[breaking-change]
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followed by a semicolon.
This allows code like `vec![1i, 2, 3].len();` to work.
This breaks code that uses macros as statements without putting
semicolons after them, such as:
fn main() {
...
assert!(a == b)
assert!(c == d)
println(...);
}
It also breaks code that uses macros as items without semicolons:
local_data_key!(foo)
fn main() {
println("hello world")
}
Add semicolons to fix this code. Those two examples can be fixed as
follows:
fn main() {
...
assert!(a == b);
assert!(c == d);
println(...);
}
local_data_key!(foo);
fn main() {
println("hello world")
}
RFC #378.
Closes #18635.
[breaking-change]
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Relax some of the bounds on the decoder methods back to FnMut to help accomodate
some more flavorful variants of decoders which may need to run the closure more
than once when it, for example, attempts to find the first successful enum to
decode.
This a breaking change due to the bounds for the trait switching, and clients
will need to update from `FnOnce` to `FnMut` as well as likely making the local
function binding mutable in order to call the function.
[breaking-change]
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- ToBase64
- FromBase64
- ToHex
- FromHex
- ToJson
- Encodable
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Currently `Decoder` implementations are not provided the tuple arity as
a parameter to `read_tuple`. This forces all encoder/decoder combos to
serialize the arity along with the elements. Tuple-arity is always known
statically at the decode site, because it is part of the type of the
tuple, so it could instead be provided as an argument to `read_tuple`,
as it is to `read_struct`.
The upside to this is that serialized tuples could become smaller in
encoder/decoder implementations which choose not to serialize type
(arity) information. For example, @TyOverby's
[binary-encode](https://github.com/TyOverby/binary-encode) format is
currently forced to serialize the tuple-arity along with every tuple,
despite the information being statically known at the decode site.
A downside to this change is that the tuple-arity of serialized tuples
can no longer be automatically checked during deserialization. However,
for formats which do serialize the tuple-arity, either explicitly (rbml)
or implicitly (json), this check can be added to the `read_tuple` method.
The signature of `Deserialize::read_tuple` and
`Deserialize::read_tuple_struct` are changed, and thus binary
backwards-compatibility is broken. This change does *not* force
serialization formats to change, and thus does not break decoding values
serialized prior to this change.
[breaking-change]
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This adds impls of Eq/Ord/PartialEq/PartialOrd/Show/Default to Arc<T>, and it
also removes the `Send + Sync` bound on the `Clone` impl of Arc to make it more
deriving-friendly. The `Send + Sync` requirement is still enforce on
construction, of course!
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This unifies the `non_snake_case_functions` and `uppercase_variables` lints
into one lint, `non_snake_case`. It also now checks for non-snake-case modules.
This also extends the non-camel-case types lint to check type parameters, and
merges the `non_uppercase_pattern_statics` lint into the
`non_uppercase_statics` lint.
Because the `uppercase_variables` lint is now part of the `non_snake_case`
lint, all non-snake-case variables that start with lowercase characters (such
as `fooBar`) will now trigger the `non_snake_case` lint.
New code should be updated to use the new `non_snake_case` lint instead of the
previous `non_snake_case_functions` and `uppercase_variables` lints. All use of
the `non_uppercase_pattern_statics` should be replaced with the
`non_uppercase_statics` lint. Any code that previously contained non-snake-case
module or variable names should be updated to use snake case names or disable
the `non_snake_case` lint. Any code with non-camel-case type parameters should
be changed to use camel case or disable the `non_camel_case_types` lint.
[breaking-change]
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These are already coded as traits.
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A quick and dirty fix for #15036 until we get serious decoder reform.
Right now it is impossible for a Decodable to signal a decode error,
for example if it has only finitely many allowed values, is a string
which must be encoded a certain way, needs a valid checksum, etc. For
example in the libuuid implementation of Decodable an Option is
unwrapped, meaning that a decode of a malformed UUID will cause the
task to fail.
Since this adds a method to the `Decoder` trait, all users will need
to update their implementations to add it. The strategy used for the
current implementations for JSON and EBML is to add a new entry to
the error enum `ApplicationError(String)` which stores the string
provided to `.error()`.
[breaking-change]
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Updated PR with fixme and test
Updated PR with fixme and test
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This removes all remnants of `@` pointers from rustc. Additionally, this removes
the `GC` structure from the prelude as it seems odd exporting an experimental
type in the prelude by default.
Closes #14193
[breaking-change]
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The following features have been removed
* box [a, b, c]
* ~[a, b, c]
* box [a, ..N]
* ~[a, ..N]
* ~[T] (as a type)
* deprecated_owned_vector lint
All users of ~[T] should move to using Vec<T> instead.
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This commit uses the same trick as ~/Box to map Gc<T> to @T internally inside
the compiler. This moves a number of implementations of traits to the `gc`
module in the standard library.
This removes functions such as `Gc::new`, `Gc::borrow`, and `Gc::ptr_eq` in
favor of the more modern equivalents, `box(GC)`, `Deref`, and pointer equality.
The Gc pointer itself should be much more useful now, and subsequent commits
will move the compiler away from @T towards Gc<T>
[breaking-change]
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[breaking-change]
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Had to make `struct Tm` in `libtime` not serializable for now.
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Bring back the Decodable impl for ~[T], this time using FromVec. It's
still not recommended that anyone use this, but at least it's available
if necessary.
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API Changes:
- from_base64() returns Result<Vec<u8>, FromBase64Error>
- from_hex() returns Result<Vec<u8>, FromHexError>
- json::List is a Vec<Json>
- Decodable is no longer implemented on ~[T] (but Encodable still is)
- DecoderHelpers::read_to_vec() returns a Result<Vec<T>, E>
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for `~str`/`~[]`.
Note that `~self` still remains, since I forgot to add support for
`Box<self>` before the snapshot.
How to update your code:
* Instead of `~EXPR`, you should write `box EXPR`.
* Instead of `~TYPE`, you should write `Box<Type>`.
* Instead of `~PATTERN`, you should write `box PATTERN`.
[breaking-change]
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- implement Encodable and Decodable for StrBuf
- implement to_json for StrBuf
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