gotools/internal/xcontext/xcontext.go

// Detach returns a context that keeps all the values of its parent context
// but detaches from the cancellation and error handling.
func Detach(ctx context.Context) context.Context { … }

type detachedContext …

func (v detachedContext) Deadline() (time.Time, bool)       { … }

func (v detachedContext) Done() <-chan struct{ … }

func (v detachedContext) Err() error                        { … }

func (v detachedContext) Value(key interface{ … }