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66 lines
1.1 KiB
66 lines
1.1 KiB
package gentools
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func ApplyUpdate[T any](dst *T, value *T) {
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if value != nil {
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*dst = *value
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}
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}
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func ApplyUpdatePtr[T any](dst **T, value *T) {
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if value != nil {
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*dst = ShallowCopy(value)
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}
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}
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func ApplyUpdateSlice[T any](dst *[]T, value []T) {
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if value != nil {
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*dst = append([]T{}, value...)
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}
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}
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func ApplyUpdateNonZero[T comparable](dst *T, value *T) {
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var zero T
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if value != nil && *value != zero {
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*dst = *value
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}
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}
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func ApplyUpdateNilZero[T comparable](dst **T, value *T) {
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if value != nil {
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var zero T
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if *value == zero {
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*dst = nil
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} else {
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valueCopy := *value
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*dst = &valueCopy
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}
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}
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}
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func ApplyMapUpdate[K comparable, V any](dst *map[K]V, src map[K]*V) {
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if *dst == nil {
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dst = &map[K]V{}
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}
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for key, value := range src {
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if value != nil {
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(*dst)[key] = *value
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} else {
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delete(*dst, key)
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}
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}
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}
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func ApplyUpdateMapNilZero[K comparable, V comparable](dst *map[K]V, src map[K]V) {
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var zero V
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if *dst == nil {
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dst = &map[K]V{}
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}
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for key, value := range src {
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if value != zero {
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(*dst)[key] = value
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} else {
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delete(*dst, key)
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}
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}
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}
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