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55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
// Copyright (c) 2023 IBM Corp.
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// All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package fromreader
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import (
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F "github.com/IBM/fp-go/function"
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G "github.com/IBM/fp-go/reader/generic"
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)
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func Ask[GR ~func(R) R, R, HKTRA any](fromReader func(GR) HKTRA) func() HKTRA {
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return func() HKTRA {
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return fromReader(G.Ask[GR]())
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}
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}
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func Asks[GA ~func(R) A, R, A, HKTRA any](fromReader func(GA) HKTRA) func(GA) HKTRA {
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return fromReader
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}
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func FromReaderK[GB ~func(R) B, R, A, B, HKTRB any](
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fromReader func(GB) HKTRB,
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f func(A) GB) func(A) HKTRB {
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return F.Flow2(f, fromReader)
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}
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func MonadChainReaderK[GB ~func(R) B, R, A, B, HKTRA, HKTRB any](
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mchain func(HKTRA, func(A) HKTRB) HKTRB,
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fromReader func(GB) HKTRB,
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ma HKTRA,
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f func(A) GB,
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) HKTRB {
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return mchain(ma, FromReaderK(fromReader, f))
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}
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func ChainReaderK[GB ~func(R) B, R, A, B, HKTRA, HKTRB any](
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mchain func(HKTRA, func(A) HKTRB) HKTRB,
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fromReader func(GB) HKTRB,
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f func(A) GB,
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) func(HKTRA) HKTRB {
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return F.Bind2nd(mchain, FromReaderK(fromReader, f))
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}
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