/
helper.go
60 lines (54 loc) · 1.63 KB
/
helper.go
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/*
* Copyright (c) 2022 InfAI (CC SES)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package controller
func NewProducerFactory[T Producer](f GenericProducerFactory[T]) (result ProducerFactory) {
return FMap3(f, func(element T) Producer { return element })
}
func FMap3[I1 any, I2 any, I3 any, ResultType any, NewResultType any](f func(in1 I1, in2 I2, in3 I3) (ResultType, error), c func(ResultType) NewResultType) func(in1 I1, in2 I2, in3 I3) (NewResultType, error) {
return func(in1 I1, in2 I2, in3 I3) (result NewResultType, err error) {
temp, err := f(in1, in2, in3)
if err != nil {
return result, err
}
result = c(temp)
return result, err
}
}
func ListMap[From any, To any](from []From, converter func(From) To) (to []To) {
if from != nil {
to = make([]To, len(from))
}
for i, e := range from {
to[i] = converter(e)
}
return
}
func ListContains[T any](list []T, check func(a T) bool) bool {
for _, e := range list {
if check(e) {
return true
}
}
return false
}
func ListFilter[T any](in []T, filter func(T) bool) (out []T) {
for _, e := range in {
if filter(e) {
out = append(out, e)
}
}
return
}