mirror of https://github.com/v2fly/v2ray-core.git
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
// Copyright 2020 Jebbs. All rights reserved.
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// Use of this source code is governed by MIT
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// license that can be found in the LICENSE file.
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package merge
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import (
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"fmt"
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)
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// mergeMaps merges source map into target
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// it supports only map[string]interface{} type for any children of the map tree
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func mergeMaps(target map[string]interface{}, source map[string]interface{}) (err error) {
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for key, value := range source {
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target[key], err = mergeField(target[key], value)
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if err != nil {
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return
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}
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}
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return
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}
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func mergeField(target interface{}, source interface{}) (interface{}, error) {
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if source == nil {
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return target, nil
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}
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if target == nil {
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return source, nil
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}
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if slice, ok := source.([]interface{}); ok {
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if tslice, ok := target.([]interface{}); ok {
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tslice = append(tslice, slice...)
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return tslice, nil
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}
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return nil, fmt.Errorf("value type mismatch, source is 'slice' but target not: %s", source)
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} else if smap, ok := source.(map[string]interface{}); ok {
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if tmap, ok := target.(map[string]interface{}); ok {
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err := mergeMaps(tmap, smap)
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return tmap, err
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}
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return nil, fmt.Errorf("value type mismatch, source is 'map[string]interface{}' but target not: %s", source)
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}
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return source, nil
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}
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