openssl 安装坑
Cannot find config.m4. Make sure that you run ‘/opt/local/bin/phpize’ in the top level source directory of the module
composer
[ErrorException] file_put_contents(/Users/didi/.composer/cache/repo/http—artifactory./packages.json): failed to open stream: No such file or directory sudo chown -R $USER ~/.composer/ https://stackoverflow.com/questions/41212362/composer-file-put-contents-composer-json-failed-to-open-stream-permission?rq=1
StructOf
Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.StructOf() Function in Golang is used to get the struct type containing fields. To access this function, one needs to imports the reflect package in the program.
GPBMetadata DescriptorPool
DescriptorPool 任何时候想要查询一个Descriptor , 都是去DescriptorPool里面查询。 DescriptorPool 实现了这样的机制 :