Go1.7将支持二进制包分发-优快云博客

2019独角兽企业重金招聘Python工程师标准>>>

Go1.7将支持二进制包分发

不出意外的话，Go1.7将在8月份发布。Go1.7最大的变化是引入SSA优化技术，号称有-10%到30~40?%的性能提升。

对于Windows用户，还有一个迟来的特性：就是生成C静态库(补充: Go1.7已经可生成静态库)，然后可以用gcc工具将这个C静态库再打包为dll。直接生成C接口的dll特性暂时还不确定能否完成。

不过我们这里主要关注另一个新特性：就是以二进制方式分发Go包。

为了保密源代码，已经出现了各种nb的技术，二进制发布虽然只是比较低级的一种方式，但是总比没有好。

先看看相关的文档:

// Binary-Only Packages
//
// It is possible to distribute packages in binary form without including the
// source code used for compiling the package. To do this, the package must
// be distributed with a source file not excluded by build constraints and
// containing a "//go:binary-only-package" comment.
// Like a build constraint, this comment must appear near the top of the file,
// preceded only by blank lines and other line comments and with a blank line
// following the comment, to separate it from the package documentation.
// Unlike build constraints, this comment is only recognized in non-test
// Go source files.
//
// The minimal source code for a binary-only package is therefore:
//
//	//go:binary-only-package
//
//	package mypkg
//
// The source code may include additional Go code. That code is never compiled
// but will be processed by tools like godoc and might be useful as end-user
// documentation.
//

简单来说就是先将pkg打包为.a文件，然后放入$GOPATH/pkg目录的相应位置，然后在$GOPATH/src相应目录放入一个空的Go源文件，里面加入以下注释：