func()

in modfile/rule.go [580:635]

• 51 lines of code
• 10 McCabe index (conditional complexity)

func (f *WorkFile) add(errs *ErrorList, line *Line, verb string, args []string, fix VersionFixer) {
	wrapError := func(err error) {
		*errs = append(*errs, Error{
			Filename: f.Syntax.Name,
			Pos:      line.Start,
			Err:      err,
		})
	}
	errorf := func(format string, args ...interface{}) {
		wrapError(fmt.Errorf(format, args...))
	}

	switch verb {
	default:
		errorf("unknown directive: %s", verb)

	case "go":
		if f.Go != nil {
			errorf("repeated go statement")
			return
		}
		if len(args) != 1 {
			errorf("go directive expects exactly one argument")
			return
		} else if !GoVersionRE.MatchString(args[0]) {
			errorf("invalid go version '%s': must match format 1.23", args[0])
			return
		}

		f.Go = &Go{Syntax: line}
		f.Go.Version = args[0]

	case "use":
		if len(args) != 1 {
			errorf("usage: %s local/dir", verb)
			return
		}
		s, err := parseString(&args[0])
		if err != nil {
			errorf("invalid quoted string: %v", err)
			return
		}
		f.Use = append(f.Use, &Use{
			Path:   s,
			Syntax: line,
		})

	case "replace":
		replace, wrappederr := parseReplace(f.Syntax.Name, line, verb, args, fix)
		if wrappederr != nil {
			*errs = append(*errs, *wrappederr)
			return
		}
		f.Replace = append(f.Replace, replace)
	}
}