编译型编程语言Rust v1.16.0发布详解编程语言

Rust是一个由Mozilla主导开发的通用、编译型编程语言。它的设计准则为“安全，并发，实用”，支持函数式，并发式，过程式以及面向对象的编程风格。Rust 的设计目标之一，是要使设计大型的互联网客户端和服务器的任务变得更容易。因此更加强调安全性、内存配置、以及并发处理等方面的特性。在性能上，具有额外安全保证的代码会比 C++ 慢一些，但是如果以 C++ 也手工提供保证的情况下，则两者性能上是相似的。

更新日志

• The compiler’s dead_code lint now accounts for type aliases.
• Uninhabitable enums (those without any variants) no longer permit wildcard match patterns
• Clean up semantics of self in an import list
• Self may appear in impl headers
• Self may appear in struct expressions

编译器

• rustc now supports –emit=metadata, which causes rustc to emit a .rmeta file containing only crate metadata. This can be used by tools like the Rust Language Service to perform metadata-only builds.
• Levenshtein based typo suggestions now work in most places, while previously they worked only for fields and sometimes for local variables. Together with the overhaul of “no resolution”/”unexpected resolution” errors (#38154) they result in large and systematic improvement in resolution diagnostics.
• Fix transmute::<T, U> where T requires a bigger alignment than U
• rustc: use -Xlinker when specifying an rpath with ‘,’ in it
• rustc no longer attempts to provide “consider using an explicit lifetime” suggestions. They were inaccurate.
• [T]::binary_search and [T]::binary_search_by_key now take their argument by Borrow parameter
• All public types in std implement Debug
• IpAddr implements From<Ipv4Addr> and From<Ipv6Addr>
• Ipv6Addr implements From<[u16; 8]>
• Ctrl-Z returns from Stdin.read() when reading from the console on Windows
• std: Fix partial writes in LineWriter
• std: Clamp max read/write sizes on Unix
• Use more specific panic message for &str slicing errors
• TcpListener::set_only_v6 is deprecated. This functionality cannot be achieved in std currently.
• writeln!, like println!, now accepts a form with no string or formatting arguments, to just print a newline
• Implement iter::Sum and iter::Product for Result
• Reduce the size of static data in std_unicode::tables
• char::EscapeDebug, EscapeDefault, EscapeUnicode, CaseMappingIter, ToLowercase, ToUppercase, implementDisplay
• Duration implements Sum
• String implements ToSocketAddrs
• The cargo check command does a type check of a project without building it
• crates.io will display CI badges from Travis and AppVeyor, if specified in Cargo.toml
• crates.io will display categories listed in Cargo.toml
• Compilation profiles accept integer values for debug, in addition to true and false. These are passed to rustc as the value to -C debuginfo
• Implement cargo –version –verbose
• All builds now output ‘dep-info’ build dependencies compatible with make and ninja
• Build all workspace members with build –all
• Document all workspace members with doc –all
• Path deps outside workspace are not members
• ​​​​​​​rustdoc has a –sysroot argument that, like rustc, specifies the path to the Rust implementation
• The armv7-linux-androideabi target no longer enables NEON extensions, per Google’s ABI guide
• The stock standard library can be compiled for Redox OS
• Rust has initial SPARC support. Tier 3. No builds available.
• Rust has experimental support for Nvidia PTX. Tier 3. No builds available.
• Fix backtraces on i686-pc-windows-gnu by disabling FPO
• ​​​​​​​Uninhabitable enums (those without any variants) no longer permit wildcard match patterns
• In this release, references to uninhabited types can not be pattern-matched. This was accidentally allowed in 1.15.
• The compiler’s dead_code lint now accounts for type aliases.
• Ctrl-Z returns from Stdin.read() when reading from the console on Windows
• Clean up semantics of self in an import list

下载

• Source code (zip)
• Source code (tar.gz)

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