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time: document that AfterFunc Timer's C field is nil
Fixes #60811 Change-Id: Ica947a4789e71826284f9f6e41c298baa3d033e4 Reviewed-on: https://go-review.googlesource.com/c/go/+/503922 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> Auto-Submit: Ian Lance Taylor <iant@golang.org>
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@ -160,6 +160,7 @@ func After(d Duration) <-chan Time {
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// AfterFunc waits for the duration to elapse and then calls f
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// AfterFunc waits for the duration to elapse and then calls f
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// in its own goroutine. It returns a Timer that can
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// in its own goroutine. It returns a Timer that can
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// be used to cancel the call using its Stop method.
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// be used to cancel the call using its Stop method.
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// The returned Timer's C field is not used and will be nil.
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func AfterFunc(d Duration, f func()) *Timer {
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func AfterFunc(d Duration, f func()) *Timer {
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t := &Timer{
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t := &Timer{
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r: runtimeTimer{
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r: runtimeTimer{
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