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v1.2.0-rc.
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v1.2.0-rc.
12
CHANGELOG.md
12
CHANGELOG.md
@ -1,15 +1,3 @@
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## [1.2.0-rc.2](https://git.ext.icikowski.pl/go/generics/compare/v1.2.0-rc.1...v1.2.0-rc.2) (2024-05-27)
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### Features
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* **pairs:** add `Pairs`-related methods ([057f12e](https://git.ext.icikowski.pl/go/generics/commit/057f12e602cda3282bd3aa53590a4bd120789f3e))
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### Refactoring
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* **comments:** beautify comments ([73328b0](https://git.ext.icikowski.pl/go/generics/commit/73328b0ef77efe3bc873b643e1464a84faf64e54))
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## [1.2.0-rc.1](https://git.ext.icikowski.pl/go/generics/compare/v1.1.1-rc.9...v1.2.0-rc.1) (2024-05-21)
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@ -1,5 +0,0 @@
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# `generics`
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[![Go Report Card](https://goreportcard.com/badge/pkg.icikowski.pl/generics)](https://goreportcard.com/report/pkg.icikowski.pl/generics)
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Collection of helpers and functions using generics.
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17
maps.go
17
maps.go
@ -1,6 +1,15 @@
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package generics
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// MapPairs returns list of map's key-value pairs.
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// Pair represents key-value pair
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type Pair[K comparable, V any] struct {
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Key K
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Value V
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}
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// Pairs represents collection of key-value pairs
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type Pairs[K comparable, V any] []Pair[K, V]
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// MapPairs returns list of map's key-value pairs
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func MapPairs[K comparable, V any](src map[K]V) Pairs[K, V] {
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dst := make([]Pair[K, V], len(src))
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idx := 0
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@ -14,7 +23,7 @@ func MapPairs[K comparable, V any](src map[K]V) Pairs[K, V] {
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return dst
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}
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// MapKeys returns list of map's keys.
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// MapKeys returns list of map's keys
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func MapKeys[K comparable, V any](src map[K]V) []K {
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dst := make([]K, len(src))
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idx := 0
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@ -25,7 +34,7 @@ func MapKeys[K comparable, V any](src map[K]V) []K {
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return dst
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}
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// MapValues returns list of map's values.
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// MapValues returns list of map's values
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func MapValues[K comparable, V any](src map[K]V) []V {
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dst := make([]V, len(src))
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idx := 0
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@ -36,7 +45,7 @@ func MapValues[K comparable, V any](src map[K]V) []V {
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return dst
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}
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// InvertMap returns map with keys and values swapped.
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// InvertMap returns map with keys and values swapped
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func InvertMap[K, V comparable](src map[K]V) map[V]K {
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if src == nil {
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return nil
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4
package-lock.json
generated
4
package-lock.json
generated
@ -1,12 +1,12 @@
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{
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"name": "generics",
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"version": "1.2.0-rc.2",
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"version": "1.2.0-rc.1",
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"lockfileVersion": 3,
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"requires": true,
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"packages": {
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"": {
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"name": "generics",
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"version": "1.2.0-rc.2",
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"version": "1.2.0-rc.1",
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"devDependencies": {
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"@saithodev/semantic-release-gitea": "^2.1.0",
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"@semantic-release/changelog": "^6.0.3",
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@ -1,4 +1,4 @@
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/*
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Collection of helpers and functions using generics.
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Generics-related functions
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*/
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package generics
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@ -1,7 +1,7 @@
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{
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"private": true,
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"name": "generics",
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"version": "1.2.0-rc.2",
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"version": "1.2.0-rc.1",
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"scripts": {
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"release": "./node_modules/.bin/semantic-release"
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},
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28
pairs.go
28
pairs.go
@ -1,28 +0,0 @@
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package generics
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// Pair represents key-value pair.
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type Pair[K comparable, V any] struct {
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Key K
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Value V
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}
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// Pairs represents a collection of key-value pairs.
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type Pairs[K comparable, V any] []Pair[K, V]
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// Keys returns list of key-value pairs' keys.
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func (p Pairs[K, V]) Keys() []K {
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dst := make([]K, len(p))
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for i, pair := range p {
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dst[i] = pair.Key
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}
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return dst
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}
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// Values returns list of key-value pairs' values.
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func (p Pairs[K, V]) Values() []V {
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dst := make([]V, len(p))
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for i, pair := range p {
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dst[i] = pair.Value
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}
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return dst
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}
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@ -1,93 +0,0 @@
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package generics
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestPairsKeys(t *testing.T) {
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tests := map[string]struct {
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src Pairs[string, int]
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dst []string
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}{
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"nil pairs": {
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src: nil,
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dst: []string{},
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},
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"empty pairs": {
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src: Pairs[string, int]{},
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dst: []string{},
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},
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"filled pairs": {
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src: Pairs[string, int]{
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{
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Key: "foo",
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Value: 1,
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},
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{
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Key: "bar",
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Value: 2,
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},
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{
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Key: "baz",
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Value: 3,
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},
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},
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dst: []string{
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"foo",
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"bar",
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"baz",
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},
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},
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}
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for name, tc := range tests {
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name, tc := name, tc
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t.Run(name, func(t *testing.T) {
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dst := tc.src.Keys()
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require.ElementsMatch(t, tc.dst, dst)
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})
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}
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}
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func TestPairsValues(t *testing.T) {
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tests := map[string]struct {
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src Pairs[string, int]
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dst []int
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}{
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"nil pairs": {
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src: nil,
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dst: []int{},
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},
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"empty pairs": {
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src: Pairs[string, int]{},
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dst: []int{},
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},
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"filled pairs": {
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src: Pairs[string, int]{
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{
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Key: "foo",
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Value: 1,
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},
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{
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Key: "bar",
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Value: 2,
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},
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{
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Key: "baz",
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Value: 3,
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},
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},
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dst: []int{1, 2, 3},
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},
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}
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for name, tc := range tests {
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name, tc := name, tc
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t.Run(name, func(t *testing.T) {
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dst := tc.src.Values()
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require.ElementsMatch(t, tc.dst, dst)
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})
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}
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}
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6
ptr.go
6
ptr.go
@ -1,11 +1,11 @@
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package generics
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// Ptr returns pointer for given value.
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// Ptr returns pointer for given value
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func Ptr[T any](val T) *T {
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return &val
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}
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// Val returns value of given pointer or default value if pointer is nil.
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// Val returns value of given pointer or default value if pointer is nil
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func Val[T any](ptr *T) T {
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var val T
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if ptr != nil {
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@ -14,7 +14,7 @@ func Val[T any](ptr *T) T {
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return val
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}
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// Fallback returns value of given pointer or fallback value if pointer is nil.
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// Fallback returns value of given pointer or fallback value if pointer is nil
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func Fallback[T any](ptr *T, fallback T) T {
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if ptr != nil {
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return *ptr
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