Using go:generate

Explore the go:generate directive in Go to automate pre-execution tasks such as downloading data and generating unique code elements. Understand its flags, usage with scripts, and its role in supporting testing while recognizing its limitations and potential hidden dependencies.

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Although go:generate is not directly connected to testing or profiling, it is a handy and advanced Go feature, and we believe that this chapter is the perfect place for discussing it because it can also help us with testing. The go:generate directive is associated with the go generate command, was added in Go 1.4 in order to help with automation, and allows us to run commands described by directives within existing files.

The go generate command supports the -v, -n, and -x flags. The -v flag prints the names of packages and files as they are processed, whereas the -n flag prints the commands that would be executed. Lastly, the -x flag prints commands as they are executed—this is ...

1.Course Introduction

2.Introduction to Go

3. Basic Go Data Types

4.Composite Data Types

5.Reflection and Interfaces

6.Go Packages and Functions

7.Telling a UNIX System What to Do

8.Go Concurrency

9.Building Web Services

10.Working with TCP/IP and WebSocket

11.Working with REST APIs

12.Code Testing and Profiling

13.Working with gRPC

14.Go Generics

15.Conclusion

16.Appendix A—Go Garbage Collector

Using go:generate