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Refactor package internal/attribute to not use generics. (#3725)

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* remove generics

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* Update internal/attribute/attribute.go

Co-authored-by: Damien Mathieu <42@dmathieu.com>

* refactor unit test

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* add changelog

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* update changelog

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* Update internal/attribute/attribute.go

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* replace interface{} with any

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

---------

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
This commit is contained in:
Peter Liu
2023-02-16 02:37:07 +08:00
committed by GitHub
parent 0062bb65ce
commit d68b05fbee
4 changed files with 189 additions and 16 deletions
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82
internal/attribute/attribute.go
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@@ -22,24 +22,90 @@ import (
"reflect"
)
// SliceValue convert a slice into an array with same elements as slice.
func SliceValue[T bool | int64 | float64 | string](v []T) any {
var zero T
// BoolSliceValue converts a bool slice into an array with same elements as slice.
func BoolSliceValue(v []bool) interface{} {
var zero bool
cp := reflect.New(reflect.ArrayOf(len(v), reflect.TypeOf(zero)))
copy(cp.Elem().Slice(0, len(v)).Interface().([]T), v)
copy(cp.Elem().Slice(0, len(v)).Interface().([]bool), v)
return cp.Elem().Interface()
}
// AsSlice convert an array into a slice into with same elements as array.
func AsSlice[T bool | int64 | float64 | string](v any) []T {
// Int64SliceValue converts an int64 slice into an array with same elements as slice.
func Int64SliceValue(v []int64) interface{} {
var zero int64
cp := reflect.New(reflect.ArrayOf(len(v), reflect.TypeOf(zero)))
copy(cp.Elem().Slice(0, len(v)).Interface().([]int64), v)
return cp.Elem().Interface()
}
// Float64SliceValue converts a float64 slice into an array with same elements as slice.
func Float64SliceValue(v []float64) interface{} {
var zero float64
cp := reflect.New(reflect.ArrayOf(len(v), reflect.TypeOf(zero)))
copy(cp.Elem().Slice(0, len(v)).Interface().([]float64), v)
return cp.Elem().Interface()
}
// StringSliceValue converts a string slice into an array with same elements as slice.
func StringSliceValue(v []string) interface{} {
var zero string
cp := reflect.New(reflect.ArrayOf(len(v), reflect.TypeOf(zero)))
copy(cp.Elem().Slice(0, len(v)).Interface().([]string), v)
return cp.Elem().Interface()
}
// AsBoolSlice converts a bool array into a slice into with same elements as array.
func AsBoolSlice(v interface{}) []bool {
rv := reflect.ValueOf(v)
if rv.Type().Kind() != reflect.Array {
return nil
}
var zero T
var zero bool
correctLen := rv.Len()
correctType := reflect.ArrayOf(correctLen, reflect.TypeOf(zero))
cpy := reflect.New(correctType)
_ = reflect.Copy(cpy.Elem(), rv)
return cpy.Elem().Slice(0, correctLen).Interface().([]T)
return cpy.Elem().Slice(0, correctLen).Interface().([]bool)
}
// AsInt64Slice converts an int64 array into a slice into with same elements as array.
func AsInt64Slice(v interface{}) []int64 {
rv := reflect.ValueOf(v)
if rv.Type().Kind() != reflect.Array {
return nil
}
var zero int64
correctLen := rv.Len()
correctType := reflect.ArrayOf(correctLen, reflect.TypeOf(zero))
cpy := reflect.New(correctType)
_ = reflect.Copy(cpy.Elem(), rv)
return cpy.Elem().Slice(0, correctLen).Interface().([]int64)
}
// AsFloat64Slice converts a float64 array into a slice into with same elements as array.
func AsFloat64Slice(v interface{}) []float64 {
rv := reflect.ValueOf(v)
if rv.Type().Kind() != reflect.Array {
return nil
}
var zero float64
correctLen := rv.Len()
correctType := reflect.ArrayOf(correctLen, reflect.TypeOf(zero))
cpy := reflect.New(correctType)
_ = reflect.Copy(cpy.Elem(), rv)
return cpy.Elem().Slice(0, correctLen).Interface().([]float64)
}
// AsStringSlice converts a string array into a slice into with same elements as array.
func AsStringSlice(v interface{}) []string {
rv := reflect.ValueOf(v)
if rv.Type().Kind() != reflect.Array {
return nil
}
var zero string
correctLen := rv.Len()
correctType := reflect.ArrayOf(correctLen, reflect.TypeOf(zero))
cpy := reflect.New(correctType)
_ = reflect.Copy(cpy.Elem(), rv)
return cpy.Elem().Slice(0, correctLen).Interface().([]string)
}