0.7.0

0.7.0 #

  • Released on: 3 July, 2013
  • Branched from master on: 4 December, 2015

  • ~2000 changes, numerous bugfixes

    • Language

      • impls no longer accept a visibility qualifier. Put them on methods instead.
      • The borrow checker has been rewritten with flow-sensitivity, fixing many bugs and inconveniences.
      • The self parameter no longer implicitly means &'self self, and can be explicitly marked with a lifetime.
      • Overloadable compound operators (+=, etc.) have been temporarily removed due to bugs.
      • The for loop protocol now requires for-iterators to return bool so they compose better.
      • The Durable trait is replaced with the 'static bounds.
      • Trait default methods work more often.
      • Structs with the #[packed] attribute have byte alignment and no padding between fields.
      • Type parameters bound by Copy must now be copied explicitly with the copy keyword.
      • It is now illegal to move out of a dereferenced unsafe pointer.
      • Option<~T> is now represented as a nullable pointer.
      • @mut does dynamic borrow checks correctly.
      • The main function is only detected at the topmost level of the crate. The #[main] attribute is still valid anywhere.
      • Struct fields may no longer be mutable. Use inherited mutability.
      • The #[no_send] attribute makes a type that would otherwise be Send, not.
      • The #[no_freeze] attribute makes a type that would otherwise be Freeze, not.
      • Unbounded recursion will abort the process after reaching the limit specified by the RUST_MAX_STACK environment variable (default: 1GB).
      • The vecs_implicitly_copyable lint mode has been removed. Vectors are never implicitly copyable.
      • #[static_assert] makes compile-time assertions about static bools.
      • At long last, ‘argument modes’ no longer exist.
      • The rarely used use mod statement no longer exists.

    • Syntax extensions

      • fail! and assert! accept ~str, &'static str or fmt!-style argument list.
      • Encodable, Decodable, Ord, TotalOrd, TotalEq, DeepClone, Rand, Zero and ToStr can all be automatically derived with #[deriving(...)].
      • The bytes! macro returns a vector of bytes for string, u8, char, and unsuffixed integer literals.

    • Libraries

      • The core crate was renamed to std.
      • The std crate was renamed to extra.
      • More and improved documentation.
      • std: iterator module for external iterator objects.
      • Many old-style (internal, higher-order function) iterators replaced by implementations of Iterator.
      • std: Many old internal vector and string iterators, incl. any, all. removed.
      • std: The finalize method of Drop renamed to drop.
      • std: The drop method now takes &mut self instead of &self.
      • std: The prelude no longer re-exports any modules, only types and traits.
      • std: Prelude additions: print, println, FromStr, ApproxEq, Equiv, Iterator, IteratorUtil, many numeric traits, many tuple traits.
      • std: New numeric traits: Fractional, Real, RealExt, Integer, Ratio, Algebraic, Trigonometric, Exponential, Primitive.
      • std: Tuple traits and accessors defined for up to 12-tuples, e.g. (0, 1, 2).n2() or (0, 1, 2).n2_ref().
      • std: Many types implement Clone.
      • std: path type renamed to Path.
      • std: mut module and Mut type removed.
      • std: Many standalone functions removed in favor of methods and iterators in vec, str. In the future methods will also work as functions.
      • std: reinterpret_cast removed. Use transmute.
      • std: ascii string handling in std::ascii.
      • std: Rand is implemented for ~/@.
      • std: run module for spawning processes overhauled.
      • std: Various atomic types added to unstable::atomic.
      • std: Various types implement Zero.
      • std: LinearMap and LinearSet renamed to HashMap and HashSet.
      • std: Borrowed pointer functions moved from ptr to borrow.
      • std: Added os::mkdir_recursive.
      • std: Added os::glob function performs filesystems globs.
      • std: FuzzyEq renamed to ApproxEq.
      • std: Map now defines pop and swap methods.
      • std: Cell constructors converted to static methods.
      • extra: rc module adds the reference counted pointers, Rc and RcMut.
      • extra: flate module moved from std to extra.
      • extra: fileinput module for iterating over a series of files.
      • extra: Complex number type and complex module.
      • extra: Rational number type and rational module.
      • extra: BigInt, BigUint implement numeric and comparison traits.
      • extra: term uses terminfo now, is more correct.
      • extra: arc functions converted to methods.
      • extra: Implementation of fixed output size variations of SHA-2.

    • Tooling

      • unused_variables lint mode for unused variables (default: warn).
      • unused_unsafe lint mode for detecting unnecessary unsafe blocks (default: warn).
      • unused_mut lint mode for identifying unused mut qualifiers (default: warn).
      • dead_assignment lint mode for unread variables (default: warn).
      • unnecessary_allocation lint mode detects some heap allocations that are immediately borrowed so could be written without allocating (default: warn).
      • missing_doc lint mode (default: allow).
      • unreachable_code lint mode (default: warn).
      • The rusti command has been rewritten and a number of bugs addressed.
      • rustc outputs in color on more terminals.
      • rustc accepts a --link-args flag to pass arguments to the linker.
      • rustc accepts a -Z print-link-args flag for debugging linkage.
      • Compiling with -g will make the binary record information about dynamic borrowcheck failures for debugging.
      • rustdoc has a nicer stylesheet.
      • Various improvements to rustdoc.
      • Improvements to rustpkg (see the detailed release notes).