D语言/dlang 2.085.0 发布 GC Objective-C 混编增强

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近些年以来 dlang 版本发布节奏稳健，编译器更新越来越实用，这个版本附带了上下文感知断言消息、较低的 GC 内存使用方式、精确的 GC、对链接自定义 GC 的支持、大量的 Objective-C 混编改进，以及对 DUB 的工具链需求。这次发布也结束了对 OSX-32 的官方支持。

DMD 编译器改进：

Add support for Objective-C classesAdd support for Objective-C instance variableAdd support for Objective-C super callsDeprecate Objective-C interfacesContext-aware assertion error messagesAvoid calling the struct constructor from const-castsdmd now supports expressive diagnostic error messages with -verrors=contextmemcmp() compares are no longer performed for struct equality tests, memberwise comparisons are done instead, per the specOSX 32-bit is no longer supported-preview and -revert command line switches have been introducedTransition to C++11 character types

Runtime 运行时改进：

Added GC.profileStats() to core.memoryAdded core.stdcpp.new_Added core.sys.linux.sched.CPU_COUNT.Added core.sys.linux.sched.CPU_ISSET.Moved std.conv.emplace, std.algorithm.mutation.move, std.algorithm.mutation.moveEmplace, and std.functional.forward to core/lifetime.dGC cleanup can now be configured as a DRT GC optionA garbage collector with precise heap scanning can now be selectedGC.realloc is now more consistent and robustUser supplied garbage collectors can now be linked with the runtimeAdded core.stdcpp.allocatorchar/wchar fields in most D runtime (core.* and rt.*) structs are now zero-initialized

包管理器 dub 改进：

dub fetch now supports <package>@<version> as a shortcutextraDependencyFiles attribute addedFile system supplier enabledtoolchainRequirements recipe entry

Dlang 官方完整的发行细节说明：

/changelog/2.085.0.html

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