437 lines
19 KiB
Plaintext
437 lines
19 KiB
Plaintext
Version 0.7 (July 2013)
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-----------------------
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* ??? changes, numerous bugfixes
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* Syntax changes
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* `use mod` is no longer valid.
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* `fail!` and `assert!` accept `~str`, `&'static str` or `fmt!`-style
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argument list.
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* `Encodable`, `Decodable`, `TotalOrd`, `TotalEq`, `DeepClone` can all
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be automatically derived with `#[deriving(...)]`.
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* The `Durable` trait is replaced with the `'static` bounds.
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* At long last, 'argument modes' no longer exist.
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* The `bytes!` macro returns a vector of bytes for string, u8, char,
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and unsuffixed integer literals.
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* Semantic changes
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* The borrow checker has been rewritten with flow-sensitivity, fixing
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many bugs and inconveniences.
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* The `self` parameter no longer implicitly means `&'self self`,
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and can be explicitly marked with a lifetime.
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* Structs with the `#[packed]` attribute have byte alignment and
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no padding between fields.
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* The `for` loop protocol now requires `for`-iterators to return `bool`
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so they compose better.
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* `Option<~T>` is now represented as a nullable pointer.
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* `@mut` does dynamic borrow checks correctly.
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* Macros TODO
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* The `main` function is only detected at the topmost level of the crate.
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The `#[main]` attribute is still valid anywhere.
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* Struct fields may no longer be mutable. Use inherited mutability.
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* The `#[non_owned]` attribute makes a type that would otherwise be
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`Owned`, not. TODO this may change to non_send before 0.7
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* The `#[mutable]` attribute makes a type that would otherwise be
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`Const`, note. TODO this may change to non_freeze before 0.7
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* Unbounded recursion will abort the process after reaching the limit
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specified by the `RUST_MAX_STACK` environment variable.
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* The `vecs_implicitly_copyable` lint mode has been removed. Vectors
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are never implicitly copyable.
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* Libraries
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* The `core` crate was renamed to `std`.
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* The `std` crate was renamed to `extra`.
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* `std::mut` removed.
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* std: The prelude no longer reexports any modules, only types and traits.
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* std: Prelude additions: `print`, `println`, `FromStr`, `ApproxEq`, `Equiv`,
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`Iterator`, `IteratorUtil`, many numeric traits, many tuple traits.
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* std: `iterator` module for external iterator objects.
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* std: new numeric traits: `Fractional`, `Real`, `RealExt`, `Integer`, `Ratio`,
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`Algebraic`, `Trigonometric`, `Exponential`, `Primitive`.
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* std: Tuple traits and accessors defined for up to 12-tuples, e.g.
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`(0, 1, 2).n2()` or `(0, 1, 2).n2_ref()`.
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* std: many types implement `Clone` - tuples, @, @mut. TODO
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* std: `path` type renamed to `Path`.
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* std: Many standalone functions removed in favor of methods in
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`vec`, `str`. In the future methods will also work as functions.
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* std: `reinterpret_cast` removed. Used `transmute`.
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* std: ascii string handling in `std::ascii`.
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* std: `Rand` is implemented for ~/@.
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* std: `run` module for spawning processes overhauled.
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* std: Various atomic types added to `unstable::atomic`.
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* std: `LinearMap` and `LinearSet` renamed to `HashMap` and `HashSet`.
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* std: Added `os::mkdir_recursive`.
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* std: Added `os::glob` function performs filesystems globs.
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* std: `FuzzyEq` renamed to `ApproxEq`.
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* std: `Map` now defines `pop` and `swap` methods.
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* extra: `flate` module moved from `std` to `extra`.
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* extra: `FileInput` implements `std::io::Reader`.
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* extra: `Complex` number type and `complex` module.
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* extra: `Rational` number type and `rational` module.
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* extra: `BigInt`, `BigUint` implement numeric and comparison traits.
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* extra: `term` uses terminfo now, is more correct.
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* Tooling
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* `unused_unsafe` lint mode for detecting unnecessary `unsafe` blocks.
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* `unused_mut` lint mode for identifying unused `mut` qualifiers.
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* The `rusti` command has been rewritten and a number of bugs addressed.
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* rustc outputs in color on more terminals.
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* rustc accepts a `--link-args` flag to pass arguments to the linker.
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* rustc accepts a `-Z print-link-args` flag for debugging linkage.
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* Compiling with `-g` will make the binary record information about
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dynamic borrowcheck failures for debugging.
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* rustdoc has a nicer stylesheet.
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* Various improvements to rustdoc.
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* Other
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* More and improved library documentation.
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* Various improvements on ARM and Android.
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* Various improvements to MIPS backend.
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* jemalloc is the Rust allocator.
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Version 0.6 (April 2013)
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------------------------
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* ~2100 changes, numerous bugfixes
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* Syntax changes
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* The self type parameter in traits is now spelled `Self`
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* The `self` parameter in trait and impl methods must now be explicitly
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named (for example: `fn f(&self) { }`). Implicit self is deprecated.
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* Static methods no longer require the `static` keyword and instead
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are distinguished by the lack of a `self` parameter
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* Replaced the `Durable` trait with the `'static` lifetime
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* The old closure type syntax with the trailing sigil has been
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removed in favor of the more consistent leading sigil
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* `super` is a keyword, and may be prefixed to paths
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* Trait bounds are separated with `+` instead of whitespace
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* Traits are implemented with `impl Trait for Type`
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instead of `impl Type: Trait`
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* Lifetime syntax is now `&'l foo` instead of `&l/foo`
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* The `export` keyword has finally been removed
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* The `move` keyword has been removed (see "Semantic changes")
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* The interior mutability qualifier on vectors, `[mut T]`, has been
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removed. Use `&mut [T]`, etc.
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* `mut` is no longer valid in `~mut T`. Use inherited mutability
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* `fail` is no longer a keyword. Use `fail!()`
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* `assert` is no longer a keyword. Use `assert!()`
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* `log` is no longer a keyword. use `debug!`, etc.
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* 1-tuples may be represented as `(T,)`
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* Struct fields may no longer be `mut`. Use inherited mutability,
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`@mut T`, `core::mut` or `core::cell`
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* `extern mod { ... }` is no longer valid syntax for foreign
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function modules. Use extern blocks: `extern { ... }`
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* Newtype enums removed. Use tuple-structs.
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* Trait implementations no longer support visibility modifiers
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* Pattern matching over vectors improved and expanded
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* `const` renamed to `static` to correspond to lifetime name,
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and make room for future `static mut` unsafe mutable globals.
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* Replaced `#[deriving_eq]` with `#[deriving(Eq)]`, etc.
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* `Clone` implementations can be automatically generated with
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`#[deriving(Clone)]`
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* Casts to traits must use a pointer sigil, e.g. `@foo as @Bar`
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instead of `foo as Bar`.
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* Fixed length vector types are now written as `[int, .. 3]`
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instead of `[int * 3]`.
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* Fixed length vector types can express the length as a constant
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expression. (ex: `[int, .. GL_BUFFER_SIZE - 2]`)
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* Semantic changes
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* Types with owned pointers or custom destructors move by default,
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eliminating the `move` keyword
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* All foreign functions are considered unsafe
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* &mut is now unaliasable
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* Writes to borrowed @mut pointers are prevented dynamically
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* () has size 0
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* The name of the main function can be customized using #[main]
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* The default type of an inferred closure is &fn instead of @fn
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* `use` statements may no longer be "chained" - they cannot import
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identifiers imported by previous `use` statements
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* `use` statements are crate relative, importing from the "top"
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of the crate by default. Paths may be prefixed with `super::`
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or `self::` to change the search behavior.
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* Method visibility is inherited from the implementation declaration
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* Structural records have been removed
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* Many more types can be used in static items, including enums
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'static-lifetime pointers and vectors
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* Pattern matching over vectors improved and expanded
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* Typechecking of closure types has been overhauled to
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improve inference and eliminate unsoundness
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* Macros leave scope at the end of modules, unless that module is
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tagged with #[macro_escape]
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* Libraries
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* Added big integers to `std::bigint`
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* Removed `core::oldcomm` module
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* Added pipe-based `core::comm` module
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* Numeric traits have been reorganized under `core::num`
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* `vec::slice` finally returns a slice
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* `debug!` and friends don't require a format string, e.g. `debug!(Foo)`
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* Containers reorganized around traits in `core::container`
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* `core::dvec` removed, `~[T]` is a drop-in replacement
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* `core::send_map` renamed to `core::hashmap`
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* `std::map` removed; replaced with `core::hashmap`
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* `std::treemap` reimplemented as an owned balanced tree
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* `std::deque` and `std::smallintmap` reimplemented as owned containers
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* `core::trie` added as a fast ordered map for integer keys
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* Set types added to `core::hashmap`, `core::trie` and `std::treemap`
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* `Ord` split into `Ord` and `TotalOrd`. `Ord` is still used to
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overload the comparison operators, whereas `TotalOrd` is used
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by certain container types
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* Other
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* Replaced the 'cargo' package manager with 'rustpkg'
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* Added all-purpose 'rust' tool
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* `rustc --test` now supports benchmarks with the `#[bench]` attribute
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* rustc now *attempts* to offer spelling suggestions
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* Improved support for ARM and Android
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* Preliminary MIPS backend
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* Improved foreign function ABI implementation for x86, x86_64
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* Various memory usage improvements
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* Rust code may be embedded in foreign code under limited circumstances
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* Inline assembler supported by new asm!() syntax extension.
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Version 0.5 (December 2012)
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---------------------------
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* ~900 changes, numerous bugfixes
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* Syntax changes
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* Removed `<-` move operator
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* Completed the transition from the `#fmt` extension syntax to `fmt!`
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* Removed old fixed length vector syntax - `[T]/N`
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* New token-based quasi-quoters, `quote_tokens!`, `quote_expr!`, etc.
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* Macros may now expand to items and statements
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* `a.b()` is always parsed as a method call, never as a field projection
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* `Eq` and `IterBytes` implementations can be automatically generated
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with `#[deriving_eq]` and `#[deriving_iter_bytes]` respectively
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* Removed the special crate language for `.rc` files
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* Function arguments may consist of any irrefutable pattern
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* Semantic changes
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* `&` and `~` pointers may point to objects
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* Tuple structs - `struct Foo(Bar, Baz)`. Will replace newtype enums.
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* Enum variants may be structs
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* Destructors can be added to all nominal types with the Drop trait
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* Structs and nullary enum variants may be constants
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* Values that cannot be implicitly copied are now automatically moved
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without writing `move` explicitly
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* `&T` may now be coerced to `*T`
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* Coercions happen in `let` statements as well as function calls
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* `use` statements now take crate-relative paths
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* The module and type namespaces have been merged so that static
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method names can be resolved under the trait in which they are
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declared
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* Improved support for language features
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* Trait inheritance works in many scenarios
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* More support for explicit self arguments in methods - `self`, `&self`
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`@self`, and `~self` all generally work as expected
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* Static methods work in more situations
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* Experimental: Traits may declare default methods for the implementations
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to use
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* Libraries
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* New condition handling system in `core::condition`
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* Timsort added to `std::sort`
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* New priority queue, `std::priority_queue`
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* Pipes for serializable types, `std::flatpipes'
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* Serialization overhauled to be trait-based
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* Expanded `getopts` definitions
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* Moved futures to `std`
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* More functions are pure now
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* `core::comm` renamed to `oldcomm`. Still deprecated
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* `rustdoc` and `cargo` are libraries now
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* Misc
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* Added a preliminary REPL, `rusti`
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* License changed from MIT to dual MIT/APL2
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Version 0.4 (October 2012)
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--------------------------
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* ~2000 changes, numerous bugfixes
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* Syntax
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* All keywords are now strict and may not be used as identifiers anywhere
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* Keyword removal: 'again', 'import', 'check', 'new', 'owned', 'send',
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'of', 'with', 'to', 'class'.
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* Classes are replaced with simpler structs
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* Explicit method self types
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* `ret` became `return` and `alt` became `match`
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* `import` is now `use`; `use is now `extern mod`
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* `extern mod { ... }` is now `extern { ... }`
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* `use mod` is the recommended way to import modules
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* `pub` and `priv` replace deprecated export lists
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* The syntax of `match` pattern arms now uses fat arrow (=>)
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* `main` no longer accepts an args vector; use `os::args` instead
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* Semantics
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* Trait implementations are now coherent, ala Haskell typeclasses
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* Trait methods may be static
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* Argument modes are deprecated
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* Borrowed pointers are much more mature and recommended for use
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* Strings and vectors in the static region are stored in constant memory
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* Typestate was removed
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* Resolution rewritten to be more reliable
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* Support for 'dual-mode' data structures (freezing and thawing)
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* Libraries
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* Most binary operators can now be overloaded via the traits in
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`core::ops'
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* `std::net::url` for representing URLs
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* Sendable hash maps in `core::send_map`
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* `core::task' gained a (currently unsafe) task-local storage API
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* Concurrency
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* An efficient new intertask communication primitive called the pipe,
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along with a number of higher-level channel types, in `core::pipes`
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* `std::arc`, an atomically reference counted, immutable, shared memory
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type
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* `std::sync`, various exotic synchronization tools based on arcs and pipes
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* Futures are now based on pipes and sendable
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* More robust linked task failure
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* Improved task builder API
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* Other
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* Improved error reporting
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* Preliminary JIT support
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* Preliminary work on precise GC
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* Extensive architectural improvements to rustc
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* Begun a transition away from buggy C++-based reflection (shape) code to
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Rust-based (visitor) code
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* All hash functions and tables converted to secure, randomized SipHash
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Version 0.3 (July 2012)
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------------------------
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* ~1900 changes, numerous bugfixes
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* New coding conveniences
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* Integer-literal suffix inference
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* Per-item control over warnings, errors
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* #[cfg(windows)] and #[cfg(unix)] attributes
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* Documentation comments
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* More compact closure syntax
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* 'do' expressions for treating higher-order functions as
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control structures
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* *-patterns (wildcard extended to all constructor fields)
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* Semantic cleanup
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* Name resolution pass and exhaustiveness checker rewritten
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* Region pointers and borrow checking supersede alias
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analysis
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* Init-ness checking is now provided by a region-based liveness
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pass instead of the typestate pass; same for last-use analysis
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* Extensive work on region pointers
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* Experimental new language features
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* Slices and fixed-size, interior-allocated vectors
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* #!-comments for lang versioning, shell execution
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* Destructors and iface implementation for classes;
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type-parameterized classes and class methods
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* 'const' type kind for types that can be used to implement
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shared-memory concurrency patterns
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* Type reflection
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* Removal of various obsolete features
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* Keywords: 'be', 'prove', 'syntax', 'note', 'mutable', 'bind',
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'crust', 'native' (now 'extern'), 'cont' (now 'again')
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* Constructs: do-while loops ('do' repurposed), fn binding,
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resources (replaced by destructors)
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* Compiler reorganization
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* Syntax-layer of compiler split into separate crate
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* Clang (from LLVM project) integrated into build
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* Typechecker split into sub-modules
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* New library code
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* New time functions
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* Extension methods for many built-in types
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* Arc: atomic-refcount read-only / exclusive-use shared cells
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* Par: parallel map and search routines
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* Extensive work on libuv interface
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* Much vector code moved to libraries
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* Syntax extensions: #line, #col, #file, #mod, #stringify,
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#include, #include_str, #include_bin
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* Tool improvements
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* Cargo automatically resolves dependencies
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Version 0.2 (March 2012)
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-------------------------
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* >1500 changes, numerous bugfixes
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* New docs and doc tooling
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* New port: FreeBSD x86_64
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* Compilation model enhancements
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* Generics now specialized, multiply instantiated
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* Functions now inlined across separate crates
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* Scheduling, stack and threading fixes
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* Noticeably improved message-passing performance
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* Explicit schedulers
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* Callbacks from C
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* Helgrind clean
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* Experimental new language features
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* Operator overloading
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* Region pointers
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* Classes
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* Various language extensions
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* C-callback function types: 'crust fn ...'
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* Infinite-loop construct: 'loop { ... }'
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* Shorten 'mutable' to 'mut'
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* Required mutable-local qualifier: 'let mut ...'
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* Basic glob-exporting: 'export foo::*;'
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* Alt now exhaustive, 'alt check' for runtime-checked
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* Block-function form of 'for' loop, with 'break' and 'ret'.
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* New library code
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* AST quasi-quote syntax extension
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* Revived libuv interface
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* New modules: core::{future, iter}, std::arena
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* Merged per-platform std::{os*, fs*} to core::{libc, os}
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* Extensive cleanup, regularization in libstd, libcore
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Version 0.1 (January 2012)
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---------------------------
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* Most language features work, including:
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* Unique pointers, unique closures, move semantics
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* Interface-constrained generics
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* Static interface dispatch
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* Stack growth
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* Multithread task scheduling
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* Typestate predicates
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* Failure unwinding, destructors
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* Pattern matching and destructuring assignment
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* Lightweight block-lambda syntax
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* Preliminary macro-by-example
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* Compiler works with the following configurations:
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* Linux: x86 and x86_64 hosts and targets
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* MacOS: x86 and x86_64 hosts and targets
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* Windows: x86 hosts and targets
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* Cross compilation / multi-target configuration supported.
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* Preliminary API-documentation and package-management tools included.
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Known issues:
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* Documentation is incomplete.
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* Performance is below intended target.
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* Standard library APIs are subject to extensive change, reorganization.
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* Language-level versioning is not yet operational - future code will
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break unexpectedly.
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