190 lines
6.8 KiB
Plaintext
190 lines
6.8 KiB
Plaintext
Version 0.4 (September 2012)
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----------------------------
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* ~1500 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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* 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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* 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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* Last-use analysis is only used for warnings now. Moves must be explicit
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for lvalues (TODO: confirm)
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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 very 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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* Hash functions improved across the codebase (TODO: need details)
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* New lint checks (TODO: which?)
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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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