Как посмотреть реализацию методов внутри CLR

FCIMPL3(Object*, COMNumber::FormatInt32, INT32 value, StringObject* formatUNSAFE, NumberFormatInfo* numfmtUNSAFE)
{
    CONTRACTL
    {
        MODE_COOPERATIVE;
        DISABLED(GC_TRIGGERS);  // can't use this in an FCALL because we're in forbid gc mode until we setup a H_M_F.
        THROWS;
        SO_TOLERANT;
    }
    CONTRACTL_END;
 
    wchar fmt;
    int digits;
 
    struct _gc
    {
        STRINGREF   refFormat;
        NUMFMTREF   refNumFmt;
        STRINGREF   refRetString;
    } gc;
 
    gc.refFormat    = (STRINGREF)formatUNSAFE;
    gc.refNumFmt    = (NUMFMTREF)numfmtUNSAFE;
    gc.refRetString = NULL;
 
    HELPER_METHOD_FRAME_BEGIN_RET_ATTRIB_PROTECT(Frame::FRAME_ATTR_RETURNOBJ, gc);
 
 
    if (gc.refNumFmt == 0) COMPlusThrowArgumentNull(L"NumberFormatInfo");
    fmt = ParseFormatSpecifier(gc.refFormat, &digits);
 
    //ANDing fmt with FFDF has the effect of uppercasing the character because
    //we've removed the bit that marks lower-case.
    switch (fmt & 0xFFDF) {
    case 'G':
        if (digits > 0)
        {
            NUMBER number;
            Int32ToNumber(value, &number);
            if (fmt != 0) {
                gc.refRetString = NumberToString(&number, fmt, digits, gc.refNumFmt);
                break;
            }
            gc.refRetString = NumberToStringFormat(&number, gc.refFormat, gc.refNumFmt);
            break;
        }
        // fall through
    case 'D':
        gc.refRetString = Int32ToDecStr(value, digits, gc.refNumFmt->sNegative);
        break;
    case 'X':
        gc.refRetString = Int32ToHexStr(value, fmt - ('X' - 'A' + 10), digits);
        break;
    default:
    NUMBER number;
    Int32ToNumber(value, &number);
    if (fmt != 0) {
      gc.refRetString = NumberToString(&number, fmt, digits, gc.refNumFmt);
      break;
    }
    gc.refRetString = NumberToStringFormat(&number, gc.refFormat, gc.refNumFmt);
    break;
 
    }
 
    HELPER_METHOD_FRAME_END();
 
    return OBJECTREFToObject(gc.refRetString);
}
FCIMPLEND