46 lines
783 B
Go
46 lines
783 B
Go
// +build genhostinfo
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package main
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import (
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"fmt"
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"reflect"
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"sync"
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"github.com/gocql/gocql"
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)
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func gen(clause, field string) {
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fmt.Printf("if h.%s == %s {\n", field, clause)
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fmt.Printf("\th.%s = from.%s\n", field, field)
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fmt.Println("}")
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}
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func main() {
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t := reflect.ValueOf(&gocql.HostInfo{}).Elem().Type()
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mu := reflect.TypeOf(sync.RWMutex{})
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for i := 0; i < t.NumField(); i++ {
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f := t.Field(i)
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if f.Type == mu {
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continue
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}
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switch f.Type.Kind() {
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case reflect.Slice:
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gen("nil", f.Name)
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case reflect.String:
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gen(`""`, f.Name)
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case reflect.Int:
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gen("0", f.Name)
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case reflect.Struct:
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gen("("+f.Type.Name()+"{})", f.Name)
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case reflect.Bool, reflect.Int32:
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continue
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default:
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panic(fmt.Sprintf("unknown field: %s", f))
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}
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}
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}
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