BUG (beta build 3020) - Debugger won't break at breakpoints on scripts

Millard Melnyk 2021.08.23 21:17

This is an inconsistent bug. As soon as I see any pattern I'll report it.

Simple script, 2 or 3 breakpoints, when I click the button or hit F5 to start debugging, the script loads, runs, and skips all the breakpoints.

To get it to work properly I have to close MetaEditor and the MT5 terminal program, then open them again and hit F5.

Millard Melnyk 2021.08.23 21:25 #1

OK, it turns out that all I need to do is close MT5 (not MetaEditor). Then when I hit F5 it opens MT5 back up and the breakpoints work.

Millard Melnyk 2021.08.23 22:04 #2

OK, looks like the debugger is a single-shot. If you compile and run the debugger, it won't pause at breakpoints. If you close MT5 and reopen it (either directly or by F5 in MetaEditor) it runs the script and pauses at the breakpoints.

And that's it. That's all you get.

Any further attempts (even immediately after the 1st debugging session ends) to run the unchanged .ex5 file will skip all the breakpoints... until after you close MT5 and reopen it again.

Here's the code I'm debugging:

#include <Globals MJM.mqh>          // I've got some #defines etc. there along with the ShowLastErrorMsg() function
#include <Object routines MJM.mqh>  // Where the deficit-compensating functions reside

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
{
   datetime dtDTM0                           = D'2021.06.01 00:00:00';
   datetime dtDTM1                           = D'2021.06.01 07:00:00';
   double   dPrc0                            = 1.418;
   double   dPrc1                            = 1.424;
   string sNmeDP = "DtPrcObj";
      ResetLastError(); 
   int iDPIX = ObjectCreate(sNmeDP,OBJ_RECTANGLE,0,0,dtDTM0,dPrc0,dtDTM1,dPrc1); 
      iErr=_LastError; 
      if(iErr>0)
         ShowLastErrorMsg(iErr,__FILE__+" called by "+__FILE__,__FUNCTION__,__LINE__,
                          " ObjectCreate for <"+sNmeDP+">");
   return;
}