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mirror of https://github.com/jesseduffield/lazygit.git synced 2024-12-12 11:15:00 +02:00
lazygit/vendor/github.com/samber/lo/map.go
2022-10-09 08:31:14 -07:00

203 lines
4.6 KiB
Go

package lo
// Keys creates an array of the map keys.
// Play: https://go.dev/play/p/Uu11fHASqrU
func Keys[K comparable, V any](in map[K]V) []K {
result := make([]K, 0, len(in))
for k := range in {
result = append(result, k)
}
return result
}
// Values creates an array of the map values.
// Play: https://go.dev/play/p/nnRTQkzQfF6
func Values[K comparable, V any](in map[K]V) []V {
result := make([]V, 0, len(in))
for _, v := range in {
result = append(result, v)
}
return result
}
// PickBy returns same map type filtered by given predicate.
// Play: https://go.dev/play/p/kdg8GR_QMmf
func PickBy[K comparable, V any](in map[K]V, predicate func(K, V) bool) map[K]V {
r := map[K]V{}
for k, v := range in {
if predicate(k, v) {
r[k] = v
}
}
return r
}
// PickByKeys returns same map type filtered by given keys.
// Play: https://go.dev/play/p/R1imbuci9qU
func PickByKeys[K comparable, V any](in map[K]V, keys []K) map[K]V {
r := map[K]V{}
for k, v := range in {
if Contains(keys, k) {
r[k] = v
}
}
return r
}
// PickByValues returns same map type filtered by given values.
// Play: https://go.dev/play/p/1zdzSvbfsJc
func PickByValues[K comparable, V comparable](in map[K]V, values []V) map[K]V {
r := map[K]V{}
for k, v := range in {
if Contains(values, v) {
r[k] = v
}
}
return r
}
// OmitBy returns same map type filtered by given predicate.
// Play: https://go.dev/play/p/EtBsR43bdsd
func OmitBy[K comparable, V any](in map[K]V, predicate func(K, V) bool) map[K]V {
r := map[K]V{}
for k, v := range in {
if !predicate(k, v) {
r[k] = v
}
}
return r
}
// OmitByKeys returns same map type filtered by given keys.
// Play: https://go.dev/play/p/t1QjCrs-ysk
func OmitByKeys[K comparable, V any](in map[K]V, keys []K) map[K]V {
r := map[K]V{}
for k, v := range in {
if !Contains(keys, k) {
r[k] = v
}
}
return r
}
// OmitByValues returns same map type filtered by given values.
// Play: https://go.dev/play/p/9UYZi-hrs8j
func OmitByValues[K comparable, V comparable](in map[K]V, values []V) map[K]V {
r := map[K]V{}
for k, v := range in {
if !Contains(values, v) {
r[k] = v
}
}
return r
}
// Entries transforms a map into array of key/value pairs.
// Play:
func Entries[K comparable, V any](in map[K]V) []Entry[K, V] {
entries := make([]Entry[K, V], 0, len(in))
for k, v := range in {
entries = append(entries, Entry[K, V]{
Key: k,
Value: v,
})
}
return entries
}
// ToPairs transforms a map into array of key/value pairs.
// Alias of Entries().
// Play: https://go.dev/play/p/3Dhgx46gawJ
func ToPairs[K comparable, V any](in map[K]V) []Entry[K, V] {
return Entries(in)
}
// FromEntries transforms an array of key/value pairs into a map.
// Play: https://go.dev/play/p/oIr5KHFGCEN
func FromEntries[K comparable, V any](entries []Entry[K, V]) map[K]V {
out := map[K]V{}
for _, v := range entries {
out[v.Key] = v.Value
}
return out
}
// FromPairs transforms an array of key/value pairs into a map.
// Alias of FromEntries().
// Play: https://go.dev/play/p/oIr5KHFGCEN
func FromPairs[K comparable, V any](entries []Entry[K, V]) map[K]V {
return FromEntries(entries)
}
// Invert creates a map composed of the inverted keys and values. If map
// contains duplicate values, subsequent values overwrite property assignments
// of previous values.
// Play: https://go.dev/play/p/rFQ4rak6iA1
func Invert[K comparable, V comparable](in map[K]V) map[V]K {
out := map[V]K{}
for k, v := range in {
out[v] = k
}
return out
}
// Assign merges multiple maps from left to right.
// Play: https://go.dev/play/p/VhwfJOyxf5o
func Assign[K comparable, V any](maps ...map[K]V) map[K]V {
out := map[K]V{}
for _, m := range maps {
for k, v := range m {
out[k] = v
}
}
return out
}
// MapKeys manipulates a map keys and transforms it to a map of another type.
// Play: https://go.dev/play/p/9_4WPIqOetJ
func MapKeys[K comparable, V any, R comparable](in map[K]V, iteratee func(V, K) R) map[R]V {
result := map[R]V{}
for k, v := range in {
result[iteratee(v, k)] = v
}
return result
}
// MapValues manipulates a map values and transforms it to a map of another type.
// Play: https://go.dev/play/p/T_8xAfvcf0W
func MapValues[K comparable, V any, R any](in map[K]V, iteratee func(V, K) R) map[K]R {
result := map[K]R{}
for k, v := range in {
result[k] = iteratee(v, k)
}
return result
}
// MapToSlice transforms a map into a slice based on specific iteratee
// Play: https://go.dev/play/p/ZuiCZpDt6LD
func MapToSlice[K comparable, V any, R any](in map[K]V, iteratee func(K, V) R) []R {
result := make([]R, 0, len(in))
for k, v := range in {
result = append(result, iteratee(k, v))
}
return result
}