25 lines
580 B
Go
25 lines
580 B
Go
package cleanup
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// Stack holds deferred cleanup functions and runs them in LIFO order.
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// Errors are collected; one cleanup failure does not stop later ones.
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type Stack struct {
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fns []func() error
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}
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// Add registers fn to run on Run().
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func (s *Stack) Add(fn func() error) {
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s.fns = append(s.fns, fn)
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}
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// Run executes all registered functions in reverse order and returns
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// every error produced.
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func (s *Stack) Run() []error {
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var errs []error
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for i := len(s.fns) - 1; i >= 0; i-- {
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if err := s.fns[i](); err != nil {
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errs = append(errs, err)
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}
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}
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return errs
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}
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