channel/chan_io.go

package channel

import (
	"fmt"
	"io"
	"time"
)

// WriteInto writes all given values into the channel ch.
// Is is a shorthand for Forward(ch, AsChan(values...))
func WriteInto[T any](ch chan<- T, values ...T) {
	Forward(ch, Of(values...))
}

// WriteIntoDelayed writes all given values into the channel ch.
// It sleeps after every write for the given amount of time.
// It is a shorthand for Forward(ch, AsChanDelayed(time, values...))
func WriteIntoDelayed[T any](ch chan<- T, delay time.Duration, values ...T) {
	Forward(ch, OfDelayed(delay, values...))
}

// WriteIntoWriter reads all values from ch and writes them via fmt.Fprintln to all writers
func WriteIntoWriter[T any](ch <-chan T, writers ...io.Writer) {
	w := io.MultiWriter(writers...)
	EachSuccessive(ch, func(value T) {
		if err, ok := any(value).(error); ok {
			fmt.Fprintln(w, err.Error())
			return
		}
		fmt.Fprintln(w, value)
	})
}