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fp-go/v2/context/readerresult/cancel.go
Dr. Carsten Leue 20398e67a9 fix: better doc and implementation of retry
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2025-12-17 15:58:11 +01:00

42 lines
1.1 KiB
Go

// Copyright (c) 2023 - 2025 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 readerresult
import (
"context"
E "github.com/IBM/fp-go/v2/either"
F "github.com/IBM/fp-go/v2/function"
)
// withContext wraps an existing ReaderResult and performs a context check for cancellation before deletating
func WithContext[A any](ma ReaderResult[A]) ReaderResult[A] {
return func(ctx context.Context) E.Either[error, A] {
if ctx.Err() != nil {
return E.Left[A](context.Cause(ctx))
}
return ma(ctx)
}
}
//go:inline
func WithContextK[A, B any](f Kleisli[A, B]) Kleisli[A, B] {
return F.Flow2(
f,
WithContext,
)
}