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fp-go/readerioeither/generic/eitherize.go
Dr. Carsten Leue 84c3e3ff88 fix: add support for context sensitive readers
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2023-07-14 23:52:14 +02:00

49 lines
1.6 KiB
Go

package generic
import (
ET "github.com/ibm/fp-go/either"
)
// these functions From a golang function with the context as the first parameter into a either reader with the context as the last parameter
// this goes back to the advice in https://pkg.go.dev/context to put the context as a first parameter as a convention
func Eitherize0[GEA ~func(R) GIOA, GIOA ~func() ET.Either[error, A], R, A any](f func(R) (A, error)) GEA {
return From0[GEA](func(r R) func() (A, error) {
return func() (A, error) {
return f(r)
}
})
}
func Eitherize1[GEA ~func(R) GIOA, GIOA ~func() ET.Either[error, A], R, T1, A any](f func(R, T1) (A, error)) func(T1) GEA {
return From1[GEA](func(r R, t1 T1) func() (A, error) {
return func() (A, error) {
return f(r, t1)
}
})
}
func Eitherize2[GEA ~func(R) GIOA, GIOA ~func() ET.Either[error, A], R, T1, T2, A any](f func(R, T1, T2) (A, error)) func(T1, T2) GEA {
return From2[GEA](func(r R, t1 T1, t2 T2) func() (A, error) {
return func() (A, error) {
return f(r, t1, t2)
}
})
}
func Eitherize3[GEA ~func(R) GIOA, GIOA ~func() ET.Either[error, A], R, T1, T2, T3, A any](f func(R, T1, T2, T3) (A, error)) func(T1, T2, T3) GEA {
return From3[GEA](func(r R, t1 T1, t2 T2, t3 T3) func() (A, error) {
return func() (A, error) {
return f(r, t1, t2, t3)
}
})
}
func Eitherize4[GEA ~func(R) GIOA, GIOA ~func() ET.Either[error, A], R, T1, T2, T3, T4, A any](f func(R, T1, T2, T3, T4) (A, error)) func(T1, T2, T3, T4) GEA {
return From4[GEA](func(r R, t1 T1, t2 T2, t3 T3, t4 T4) func() (A, error) {
return func() (A, error) {
return f(r, t1, t2, t3, t4)
}
})
}