glob/internal/debug/debug_enabled.go

33 lines
403 B
Go

// +build globdebug
package debug
import (
"fmt"
"os"
"strings"
"sync/atomic"
)
const Enabled = true
var i = new(int32)
func Logf(f string, args ...interface{}) {
n := int(atomic.LoadInt32(i))
fmt.Fprint(os.Stderr,
strings.Repeat(" ", n),
fmt.Sprintf("(%d) ", n),
fmt.Sprintf(f, args...),
"\n",
)
}
func Enter() {
atomic.AddInt32(i, 1)
}
func Leave() {
atomic.AddInt32(i, -1)
}