func ExampleContext() {
log.SetPrefix("PFX:")
log.SetOutput(os.Stdout)
log.SetFlags(log.LminFlags | log.Lshortfile)
log.ERROR("hi", log.KV{"key": "val"})
log.WARN("lazy", "hip", log.Lazy(func() interface{} { return "slow" }))
cancel_context, cancel_func := context.WithCancel(context.Background())
logger := log.With(log.KV{"tra": "la"})
logger.DoCodeInfo(true)
logging_context := context.WithLogging(cancel_context, logger)
ok := make(chan struct{})
go f(logging_context, ok)
h(logger)
g(logging_context)
time.Sleep(time.Duration(1) * time.Second)
cancel_func() // cancel the go-routine
// wait for its exit
select {
case <-ok:
}
// Output:
//<3>PFX:api_test.go:50: hi key=val
//<4>PFX:api_test.go:51: lazy hip=slow
//<5>PFX:api_test.go:26: H1 tra=la
//<5>PFX:api_test.go:27: H2
//<5>PFX:api_test.go:31: G tra=la a=b
//<5>PFX:api_test.go:38: cancelled tra=la
}
func ExampleMinimal() {
log.Minimal() // change default Logger to not be stdlib compatible but minimal
log.ERROR("fejl")
// Output:
// <3>fejl
}