43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
// Copyright 2022 PingCAP, Inc.
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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 extension
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type clearFuncBuilder struct {
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clears []func()
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}
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// DoWithCollectClear executes a function and collect it clear function
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func (b *clearFuncBuilder) DoWithCollectClear(fn func() (func(), error)) error {
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clearFunc, err := fn()
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if err != nil {
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return err
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}
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if clearFunc != nil {
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b.clears = append(b.clears, clearFunc)
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}
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return nil
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}
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// Build builds a clear function
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func (b *clearFuncBuilder) Build() func() {
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return func() {
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for _, fn := range b.clears {
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fn()
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}
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}
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}
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