[.net] 리플렉션을 사용하여 현재 실행중인 메소드의 이름을 찾을 수 있습니까?

LinqPad에서 임의의 타이밍 구성 을 사용하여 메소드 이름을 얻는 방법 비교 :

암호

void Main()
{
    // from http://blogs.msdn.com/b/webdevelopertips/archive/2009/06/23/tip-83-did-you-know-you-can-get-the-name-of-the-calling-method-from-the-stack-using-reflection.aspx
    // and /programming/2652460/c-sharp-how-to-get-the-name-of-the-current-method-from-code

    var fn = new methods();

    fn.reflection().Dump("reflection");
    fn.stacktrace().Dump("stacktrace");
    fn.inlineconstant().Dump("inlineconstant");
    fn.constant().Dump("constant");
    fn.expr().Dump("expr");
    fn.exprmember().Dump("exprmember");
    fn.callermember().Dump("callermember");

    new Perf {
        { "reflection", n => fn.reflection() },
        { "stacktrace", n => fn.stacktrace() },
        { "inlineconstant", n => fn.inlineconstant() },
        { "constant", n => fn.constant() },
        { "expr", n => fn.expr() },
        { "exprmember", n => fn.exprmember() },
        { "callermember", n => fn.callermember() },
    }.Vs("Method name retrieval");
}

// Define other methods and classes here
class methods {
    public string reflection() {
        return System.Reflection.MethodBase.GetCurrentMethod().Name;
    }
    public string stacktrace() {
        return new StackTrace().GetFrame(0).GetMethod().Name;
    }
    public string inlineconstant() {
        return "inlineconstant";
    }
    const string CONSTANT_NAME = "constant";
    public string constant() {
        return CONSTANT_NAME;
    }
    public string expr() {
        Expression<Func<methods, string>> ex = e => e.expr();
        return ex.ToString();
    }
    public string exprmember() {
        return expressionName<methods,string>(e => e.exprmember);
    }
    protected string expressionName<T,P>(Expression<Func<T,Func<P>>> action) {
        // https://stackoverflow.com/a/9015598/1037948
        return ((((action.Body as UnaryExpression).Operand as MethodCallExpression).Object as ConstantExpression).Value as MethodInfo).Name;
    }
    public string callermember([CallerMemberName]string name = null) {
        return name;
    }
}

결과

반사
반사

스택
트레이스

인라인
상수 인라인 상수

상수
상수

expr
e => e.expr ()

exprmember
exprmember

발신자
메인

Method name retrieval: (reflection) vs (stacktrace) vs (inlineconstant) vs (constant) vs (expr) vs (exprmember) vs (callermember)

 154673 ticks elapsed ( 15.4673 ms) - reflection
2588601 ticks elapsed (258.8601 ms) - stacktrace
   1985 ticks elapsed (  0.1985 ms) - inlineconstant
   1385 ticks elapsed (  0.1385 ms) - constant
1366706 ticks elapsed (136.6706 ms) - expr
 775160 ticks elapsed ( 77.516  ms) - exprmember
   2073 ticks elapsed (  0.2073 ms) - callermember


>> winner: constant

있습니다 expr및 callermember방법은 아주 “오른쪽”아니다. 여기 에서 리플렉션이 스택 트레이스보다 15 배 빠르다는 관련 주석 이 반복되는 것을 볼 수 있습니다 .

답변

StackTrace st = new StackTrace(true);

// The first frame will be the method you want (However, see caution below)
st.GetFrames();

[MethodImpl(MethodImplOptions.NoInlining)]