github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/context/operators/ternary.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package operators
    19  
    20  import "github.com/aacfactory/fns/context"
    21  
    22  type TernaryFn func(ctx context.Context) (returning bool, err error)
    23  
    24  func Ternary(ctx context.Context, condition func(ctx context.Context) (ok bool), truthy TernaryFn, falsy TernaryFn) (returning bool, err error) {
    25  	if condition(ctx) {
    26  		returning, err = truthy(ctx)
    27  	} else {
    28  		returning, err = falsy(ctx)
    29  	}
    30  	return
    31  }
    32  
    33  func TernaryTruthy(ctx context.Context, condition func(ctx context.Context) (ok bool), truthy TernaryFn) (returning bool, err error) {
    34  	if condition(ctx) {
    35  		returning, err = truthy(ctx)
    36  	}
    37  	return
    38  }
    39  
    40  func TernaryFalsy(ctx context.Context, condition func(ctx context.Context) (ok bool), falsy TernaryFn) (returning bool, err error) {
    41  	if condition(ctx) {
    42  		returning, err = falsy(ctx)
    43  	}
    44  	return
    45  }