// 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 generic import ( "context" E "github.com/IBM/fp-go/either" F "github.com/IBM/fp-go/function" RIE "github.com/IBM/fp-go/readerioeither/generic" ) // WithResource constructs a function that creates a resource, then operates on it and then releases the resource func WithResource[ GRA ~func(context.Context) GIOA, GRR ~func(context.Context) GIOR, GRANY ~func(context.Context) GIOANY, GIOR ~func() E.Either[error, R], GIOA ~func() E.Either[error, A], GIOANY ~func() E.Either[error, ANY], R, A, ANY any](onCreate GRR, onRelease func(R) GRANY) func(func(R) GRA) GRA { // wraps the callback functions with a context check return F.Flow2( F.Bind2nd(F.Flow2[func(R) GRA, func(GRA) GRA, R, GRA, GRA], WithContext[GRA]), RIE.WithResource[GRA](WithContext(onCreate), onRelease), ) }