mirror of
https://github.com/go-gitea/gitea
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71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
// Copyright 2011 Aaron Jacobs. All Rights Reserved.
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// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package oglematchers
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import (
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"strings"
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)
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// AllOf accepts a set of matchers S and returns a matcher that follows the
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// algorithm below when considering a candidate c:
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//
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// 1. Return true if for every Matcher m in S, m matches c.
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//
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// 2. Otherwise, if there is a matcher m in S such that m returns a fatal
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// error for c, return that matcher's error message.
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//
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// 3. Otherwise, return false with the error from some wrapped matcher.
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//
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// This is akin to a logical AND operation for matchers.
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func AllOf(matchers ...Matcher) Matcher {
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return &allOfMatcher{matchers}
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}
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type allOfMatcher struct {
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wrappedMatchers []Matcher
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}
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func (m *allOfMatcher) Description() string {
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// Special case: the empty set.
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if len(m.wrappedMatchers) == 0 {
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return "is anything"
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}
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// Join the descriptions for the wrapped matchers.
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wrappedDescs := make([]string, len(m.wrappedMatchers))
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for i, wrappedMatcher := range m.wrappedMatchers {
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wrappedDescs[i] = wrappedMatcher.Description()
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}
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return strings.Join(wrappedDescs, ", and ")
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}
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func (m *allOfMatcher) Matches(c interface{}) (err error) {
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for _, wrappedMatcher := range m.wrappedMatchers {
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if wrappedErr := wrappedMatcher.Matches(c); wrappedErr != nil {
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err = wrappedErr
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// If the error is fatal, return immediately with this error.
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_, ok := wrappedErr.(*FatalError)
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if ok {
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return
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}
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}
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}
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return
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}
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