Method Defer

types/lazy/deferred.go:47–55

Defer adds a function to be called when [DeferredInit.Do] is called for the first time. It returns true on success, or false if [DeferredInit.Do] has already been called.

(f func() error)

// is called for the first time. It returns true on success,
// or false if [DeferredInit.Do] has already been called.
func (d *DeferredFuncs) Defer(f func() error) bool {
	d.m.Lock()
	defer d.m.Unlock()
	if d.err.Load() != nil {
		return false
	}
	d.funcs = append(d.funcs, f)
	return true
}

// MustDefer is like [DeferredFuncs.Defer], but panics
// if [DeferredInit.Do] has already been called.