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Files
fp-go/predicate/contramap.go
Dr. Carsten Leue c07df5c771 initial checkin
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2023-07-07 22:31:06 +02:00

16 lines
312 B
Go

package predicate
import (
F "github.com/ibm/fp-go/function"
)
// ContraMap creates a predicate from an existing predicate given a mapping function
func ContraMap[A, B any](f func(B) A) func(func(A) bool) func(B) bool {
return func(pred func(A) bool) func(B) bool {
return F.Flow2(
f,
pred,
)
}
}