once

package

v2.2.0+incompatible Latest Latest Go to latest Published: Aug 23, 2019 License: Apache-2.0 Imports: 1 Imported by: 3

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type ReturnError struct {
	// contains filtered or unexported fields
}

ReturnError is a wrapper around sync.Once that properly handles: func() error instead of just func()

func (owe *ReturnError) Do(f func() error) error

Do provides the same functionality as sync.Once.Do(func()) but for func() error