terror_gen

Terror check tool

Principle

• gen.go: read and parse the ast of error_list file to generate current error information, and generate checker_generated.go
• checker_template.go: code template for checker
• checker_generated.go: check whether current errors have conflict with the previous version, checklist as follows:
  • check each error that is not newly added in develop version has the same error code with the release version
  • check each error in develop version has a unique error code
• errors_release.txt: generated error information list

Run

Run check.sh will automatically check the valid of error list, if no conflict is detected, errors_release.txt will be updated with latest error list. Each time we change errors definition in error_list, we must run make terror_check, which will call check.sh directly.