26 lines
656 B
Go
26 lines
656 B
Go
package gubgub
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// Forever wraps a subscriber that will never stop consuming messages.
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// This helps avoiding subscribers that always return TRUE.
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func Forever[T any](fn func(T)) Subscriber[T] {
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return func(msg T) bool {
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fn(msg)
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return true
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}
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}
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// Once wraps a subscriber that will consume only one message.
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// This helps avoiding subscribers that always return FALSE.
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func Once[T any](fn func(T)) Subscriber[T] {
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return func(t T) bool {
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fn(t)
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return false
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}
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}
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// NoOp creates a subscriber that does absolutely nothing forever.
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// This is mostly useful for testing.
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func NoOp[T any]() Subscriber[T] {
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return func(_ T) bool { return true }
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}
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