package main

import (
	"fmt"
	"io"
	"log"
	"runtime"
)

// close a Closer or panic. better than just close, object scoping safe
func closeOrPanic(c io.Closer, description string) {
	if err := c.Close(); err != nil {
		panic("Could not close '" + description + "': " + err.Error())
	}
}

// close and ignore any error
func closeIgnore(c io.Closer) {
	// we simply ignore any error
	_ = c.Close()
}

// close or log the failure. need to provide the %s in format
func closeOrLog(c io.Closer, format string) {
	if err := c.Close(); err != nil {
		log.Printf(format, err)
	}
}

// return a nice not yet implemented error
func notYetImplemented() error {
	pc, _, _, ok := runtime.Caller(1)
	if ok == false {
		return fmt.Errorf("notYetImplemented() cshould not be called from static context")
	}
	return fmt.Errorf("%s is not yet implemented", runtime.FuncForPC(pc).Name())
}