35 lines
922 B
Go
35 lines
922 B
Go
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package qson
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// merge merges a with b if they are either both slices
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// or map[string]interface{} types. Otherwise it returns b.
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func merge(a interface{}, b interface{}) interface{} {
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switch aT := a.(type) {
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case map[string]interface{}:
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return mergeMap(aT, b.(map[string]interface{}))
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case []interface{}:
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return mergeSlice(aT, b.([]interface{}))
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default:
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return b
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}
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}
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// mergeMap merges a with b, attempting to merge any nested
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// values in nested maps but eventually overwriting anything
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// in a that can't be merged with whatever is in b.
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func mergeMap(a map[string]interface{}, b map[string]interface{}) map[string]interface{} {
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for bK, bV := range b {
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if _, ok := a[bK]; ok {
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a[bK] = merge(a[bK], bV)
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} else {
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a[bK] = bV
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}
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}
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return a
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}
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// mergeSlice merges a with b and returns the result.
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func mergeSlice(a []interface{}, b []interface{}) []interface{} {
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a = append(a, b...)
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return a
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}
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