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feat: add CopyProperties for merge properties between structs
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@@ -9,6 +9,7 @@ import (
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"encoding/binary"
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"encoding/gob"
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"encoding/json"
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"errors"
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"fmt"
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"math"
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"reflect"
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@@ -340,3 +341,46 @@ func DeepClone[T any](src T) T {
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return result.Interface().(T)
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}
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// CopyProperties copies each field from the source into the destination. It recursively copies struct pointers and interfaces that contain struct pointers.
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// Play: todo
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func CopyProperties(dst, src interface{}) (err error) {
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defer func() {
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if e := recover(); e != nil {
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err = errors.New(fmt.Sprintf("%v", e))
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}
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}()
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dstType, dstValue := reflect.TypeOf(dst), reflect.ValueOf(dst)
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srcType, srcValue := reflect.TypeOf(src), reflect.ValueOf(src)
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if dstType.Kind() != reflect.Ptr || dstType.Elem().Kind() != reflect.Struct {
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return errors.New("CopyProperties: param dst should be struct pointer")
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}
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if srcType.Kind() == reflect.Ptr {
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srcType, srcValue = srcType.Elem(), srcValue.Elem()
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}
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if srcType.Kind() != reflect.Struct {
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return errors.New("CopyProperties: param src should be a struct or struct pointer")
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}
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dstType, dstValue = dstType.Elem(), dstValue.Elem()
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propertyNums := dstType.NumField()
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for i := 0; i < propertyNums; i++ {
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property := dstType.Field(i)
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propertyValue := srcValue.FieldByName(property.Name)
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if !propertyValue.IsValid() || property.Type != propertyValue.Type() {
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continue
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}
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if dstValue.Field(i).CanSet() {
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dstValue.Field(i).Set(propertyValue)
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}
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}
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return nil
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}
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