github.com/abayer/test-infra@v0.0.5/mungegithub/mungers/matchers/event/operators.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors.
     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  package event
    18  
    19  import "github.com/google/go-github/github"
    20  
    21  // True is a matcher that is always true
    22  type True struct{}
    23  
    24  // Match returns true no matter what
    25  func (t True) Match(event *github.IssueEvent) bool {
    26  	return true
    27  }
    28  
    29  // False is a matcher that is always false
    30  type False struct{}
    31  
    32  // Match returns false no matter what
    33  func (t False) Match(event *github.IssueEvent) bool {
    34  	return false
    35  }
    36  
    37  // And makes sure that each match in the list matches (true if empty)
    38  type And []Matcher
    39  
    40  // Match returns true if all the matcher in the list matches
    41  func (a And) Match(event *github.IssueEvent) bool {
    42  	for _, matcher := range []Matcher(a) {
    43  		if !matcher.Match(event) {
    44  			return false
    45  		}
    46  	}
    47  	return true
    48  }
    49  
    50  // Or makes sure that at least one element in the list matches (false if empty)
    51  type Or []Matcher
    52  
    53  // Match returns true if one of the matcher in the list matches
    54  func (o Or) Match(event *github.IssueEvent) bool {
    55  	for _, matcher := range []Matcher(o) {
    56  		if matcher.Match(event) {
    57  			return true
    58  		}
    59  	}
    60  	return false
    61  }
    62  
    63  // Not reverses the effect of the matcher
    64  type Not struct {
    65  	Matcher Matcher
    66  }
    67  
    68  // Match returns true if the matcher would return false, and vice-versa
    69  func (n Not) Match(event *github.IssueEvent) bool {
    70  	return !n.Matcher.Match(event)
    71  }