/
09.go
39 lines (32 loc) · 1.01 KB
/
09.go
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package main
import (
"fmt"
"github.com/twmb/style"
"time"
)
func main() {
w := style.NewWriter()
w.SetDelay(100 * time.Millisecond)
fmt.Fprintln(w, "calling RecursiveChannels in main")
for received := range RecursiveChannels(0) {
fmt.Fprintf(w, "received %v from c in main\n", received)
}
}
func RecursiveChannels(recursionlevel int) <-chan int {
w := style.NewWriter(style.Bright, style.XTerm256FG(recursionlevel+1))
w.SetDelay(100 * time.Millisecond)
returnChan := make(chan int)
go func() {
defer close(returnChan)
if recursionlevel < 10 {
fmt.Fprintf(w, "recursing and receiving from channel at recursion level %v\n", recursionlevel)
for received := range RecursiveChannels(recursionlevel + 1) {
fmt.Fprintf(w, "received value %v from channel at recursion level %v, now sending back my level\n", received, recursionlevel)
}
} else {
fmt.Fprintf(w, "end of recursion: sending to channel at recursion level %v\n", recursionlevel)
}
returnChan <- recursionlevel
}()
return returnChan
}