either

package

v0.1.10 Latest Latest Go to latest Published: Jun 14, 2023 License: Apache-2.0 Imports: 3 Imported by: 0

Documentation ¶

Overview ¶

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.

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.

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.

Index ¶

func Alt[E, A any](that func() Either[E, A]) func(Either[E, A]) Either[E, A]
func AltW[E, E1, A any](that func() Either[E1, A]) func(Either[E, A]) Either[E1, A]
func Ap[E, A, B any](fa Either[E, A]) func(fab Either[E, func(a A) B]) Either[E, B]
func Chain[E, A, B any](f func(a A) Either[E, B]) func(Either[E, A]) Either[E, B]
func ChainOptionK[E, A, B any](onNone func() E) func(func(A) O.Option[B]) func(Either[E, A]) Either[E, B]
func Eitherize0[R any](f func() (R, error)) func() Either[error, R]
func Eitherize1[T1, R any](f func(t1 T1) (R, error)) func(t1 T1) Either[error, R]
func Eitherize2[T1, T2, R any](f func(t1 T1, t2 T2) (R, error)) func(t1 T1, t2 T2) Either[error, R]
func Fold[E, A, B any](onLeft func(e E) B, onRight func(a A) B) func(ma Either[E, A]) B
func FromNillable[E, A any](e E) func(*A) Either[E, *A]
func FromOption[E, A any](onNone func() E) func(O.Option[A]) Either[E, A]
func FromPredicate[E, A any](pred func(a A) bool, onFalse func(a A) E) func(value A) Either[E, A]
func GetOrElse[E, A any](onLeft func(E) A) func(Either[E, A]) A
func IsLeft[E, A any](val Either[E, A]) bool
func IsRight[E, A any](val Either[E, A]) bool
func Map[E, A, B any](f func(a A) B) func(fa Either[E, A]) Either[E, B]
func MapLeft[E, A, B any](f func(E) B) func(fa Either[E, A]) Either[B, A]
func MapTo[E, A, B any](b B) func(Either[E, A]) Either[E, B]
func Sequence2[E, T1, T2, R any](f func(T1, T2) Either[E, R]) func(Either[E, T1], Either[E, T2]) Either[E, R]
func Sequence3[E, T1, T2, T3, R any](f func(T1, T2, T3) Either[E, R]) func(Either[E, T1], Either[E, T2], Either[E, T3]) Either[E, R]
func SequenceArray[E, A any]() func([]Either[E, A]) Either[E, []A]
func ToError[A any](e Either[error, A]) error
func TraverseArray[E, A, B any](f func(A) Either[E, B]) func([]A) Either[E, []B]
func WithResource[E, R, A any](onCreate func() Either[E, R], onRelease func(R) Either[E, any]) func(func(R) Either[E, A]) Either[E, A]
type Either
- func Flatten[E, A any](mma Either[E, Either[E, A]]) Either[E, A]
- func Left[E, A any](value E) Either[E, A]
- func MonadAp[E, A, B any](fab Either[E, func(a A) B], fa Either[E, A]) Either[E, B]
- func MonadChain[E, A, B any](fa Either[E, A], f func(a A) Either[E, B]) Either[E, B]
- func MonadChainOptionK[E, A, B any](onNone func() E, ma Either[E, A], f func(A) O.Option[B]) Either[E, B]
- func MonadMap[E, A, B any](fa Either[E, A], f func(a A) B) Either[E, B]
- func MonadMapLeft[E, A, B any](fa Either[E, A], f func(E) B) Either[B, A]
- func MonadMapTo[E, A, B any](fa Either[E, A], b B) Either[E, B]
- func MonadSequence2[E, T1, T2, R any](e1 Either[E, T1], e2 Either[E, T2], f func(T1, T2) Either[E, R]) Either[E, R]
- func MonadSequence3[E, T1, T2, T3, R any](e1 Either[E, T1], e2 Either[E, T2], e3 Either[E, T3], ...) Either[E, R]
- func Of[E, A any](value A) Either[E, A]
- func Right[E, A any](value A) Either[E, A]
- func TryCatch[E, A any](f func() (A, error), onThrow func(error) E) Either[E, A]
- func TryCatchError[A any](f func() (A, error)) Either[error, A]

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Alt ¶

func Alt[E, A any](that func() Either[E, A]) func(Either[E, A]) Either[E, A]

func AltW ¶

func AltW[E, E1, A any](that func() Either[E1, A]) func(Either[E, A]) Either[E1, A]

func Ap ¶

func Ap[E, A, B any](fa Either[E, A]) func(fab Either[E, func(a A) B]) Either[E, B]

func Chain ¶

func Chain[E, A, B any](f func(a A) Either[E, B]) func(Either[E, A]) Either[E, B]

func ChainOptionK ¶

func ChainOptionK[E, A, B any](onNone func() E) func(func(A) O.Option[B]) func(Either[E, A]) Either[E, B]

func Eitherize0 ¶

func Eitherize0[R any](f func() (R, error)) func() Either[error, R]

func Eitherize1 ¶

func Eitherize1[T1, R any](f func(t1 T1) (R, error)) func(t1 T1) Either[error, R]

func Eitherize2 ¶

func Eitherize2[T1, T2, R any](f func(t1 T1, t2 T2) (R, error)) func(t1 T1, t2 T2) Either[error, R]

func Fold ¶

func Fold[E, A, B any](onLeft func(e E) B, onRight func(a A) B) func(ma Either[E, A]) B

func FromNillable ¶

func FromNillable[E, A any](e E) func(*A) Either[E, *A]

func FromOption ¶

func FromOption[E, A any](onNone func() E) func(O.Option[A]) Either[E, A]

func FromPredicate ¶

func FromPredicate[E, A any](pred func(a A) bool, onFalse func(a A) E) func(value A) Either[E, A]

func GetOrElse ¶

func GetOrElse[E, A any](onLeft func(E) A) func(Either[E, A]) A

func IsLeft ¶

func IsLeft[E, A any](val Either[E, A]) bool

func IsRight ¶

func IsRight[E, A any](val Either[E, A]) bool

func Map ¶

func Map[E, A, B any](f func(a A) B) func(fa Either[E, A]) Either[E, B]

func MapLeft ¶

func MapLeft[E, A, B any](f func(E) B) func(fa Either[E, A]) Either[B, A]

func MapTo ¶

func MapTo[E, A, B any](b B) func(Either[E, A]) Either[E, B]

func Sequence2 ¶

func Sequence2[E, T1, T2, R any](f func(T1, T2) Either[E, R]) func(Either[E, T1], Either[E, T2]) Either[E, R]

func Sequence3 ¶ added in v0.1.6

func Sequence3[E, T1, T2, T3, R any](f func(T1, T2, T3) Either[E, R]) func(Either[E, T1], Either[E, T2], Either[E, T3]) Either[E, R]

func SequenceArray ¶

func SequenceArray[E, A any]() func([]Either[E, A]) Either[E, []A]

func ToError ¶

func ToError[A any](e Either[error, A]) error

func TraverseArray ¶

func TraverseArray[E, A, B any](f func(A) Either[E, B]) func([]A) Either[E, []B]

func WithResource ¶

func WithResource[E, R, A any](onCreate func() Either[E, R], onRelease func(R) Either[E, any]) func(func(R) Either[E, A]) Either[E, A]

WithResource constructs a function that creates a resource, then operates on it and then releases the resource

Types ¶

type Either ¶

type Either[E, A any] interface {
	IsLeft() bool
	IsRight() bool
}

func Flatten ¶

func Flatten[E, A any](mma Either[E, Either[E, A]]) Either[E, A]

func Left ¶

func Left[E, A any](value E) Either[E, A]

func MonadAp ¶

func MonadAp[E, A, B any](fab Either[E, func(a A) B], fa Either[E, A]) Either[E, B]

func MonadChain ¶

func MonadChain[E, A, B any](fa Either[E, A], f func(a A) Either[E, B]) Either[E, B]

func MonadChainOptionK ¶

func MonadChainOptionK[E, A, B any](onNone func() E, ma Either[E, A], f func(A) O.Option[B]) Either[E, B]

func MonadMap ¶

func MonadMap[E, A, B any](fa Either[E, A], f func(a A) B) Either[E, B]

func MonadMapLeft ¶

func MonadMapLeft[E, A, B any](fa Either[E, A], f func(E) B) Either[B, A]

func MonadMapTo ¶

func MonadMapTo[E, A, B any](fa Either[E, A], b B) Either[E, B]

func MonadSequence2 ¶

func MonadSequence2[E, T1, T2, R any](e1 Either[E, T1], e2 Either[E, T2], f func(T1, T2) Either[E, R]) Either[E, R]

func MonadSequence3 ¶ added in v0.1.6

func MonadSequence3[E, T1, T2, T3, R any](e1 Either[E, T1], e2 Either[E, T2], e3 Either[E, T3], f func(T1, T2, T3) Either[E, R]) Either[E, R]

func Of ¶

func Of[E, A any](value A) Either[E, A]

func Right ¶

func Right[E, A any](value A) Either[E, A]

func TryCatch ¶

func TryCatch[E, A any](f func() (A, error), onThrow func(error) E) Either[E, A]

func TryCatchError ¶

func TryCatchError[A any](f func() (A, error)) Either[error, A]

Source Files ¶

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