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fp-go/iterator/stateless/compress.go
Dr. Carsten Leue e53e2c53e8 fix: more iterator functions
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2023-08-04 17:12:24 +02:00

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1.1 KiB
Go

// Copyright (c) 2023 IBM Corp.
// All rights reserved.
//
// 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 stateless
import (
G "github.com/IBM/fp-go/iterator/stateless/generic"
T "github.com/IBM/fp-go/tuple"
)
// Compress returns an [Iterator] that filters elements from a data [Iterator] returning only those that have a corresponding element in selector [Iterator] that evaluates to `true`.
// Stops when either the data or selectors iterator has been exhausted.
func Compress[U any](sel Iterator[bool]) func(Iterator[U]) Iterator[U] {
return G.Compress[Iterator[U], Iterator[bool], Iterator[T.Tuple2[U, bool]]](sel)
}