Source line with only 'Exit' cannot have a breakpoint?
lazarus / 12-Debugger

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AlexTP · 2022-03-18 18:24

As I see - SUBJ - yes, it cannot have a breakpoint.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i if
SomeTest() then  Exit; IDE don't allow to place it on 'Exit' line.
So I must add 'begin end' with additional fake operator like "if
Assigned(fm) then ;".

Not handy.

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MarkMLl · 2022-03-18 18:27

But exit(something) will usually work since it actually generates code
rather than being a syntactic element... I've not tried exit(result).

MarkMLl

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Martin_fr · 2022-03-18 18:40

It's something the compiler decides. The debugger just "reacts".

(Not tested, but...) Have you tried with -O- ? No optimization at all.
Even -O1 could cause stuff like this.

(At leat on Win...) In the same way, the compiler adds the info that
some of the code in the final "end;" of a procedure is in the "begin"
line. Hence the debugger jumps around.
The fact that it jumps several times, is because it "steps over" the
internal "finally" block that fpc added (and finally is a subroutine).
That (the several times jumping around) is something that should be
fixable in the debugger (in FpDebug).

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MarkMLl · 2022-03-18 18:46

Curiously, I've noticed both of the issues Alex mentions myself over
the last couple of weeks (Linux+gdb), which might be related to
upgrading FPC from 3.2.0 to 3.2.2.

if exit(result) worked I'd be tempted to define it as a macro EXIT_ or
similar (I say that in order to bait somebody into telling me that it
could be done better with templates).

MarkMLl

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markftl · 2022-03-18 21:28

I usually use

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i     if
SomeTest() then begin      Exit;    end; 
if I need to break at the exit. Has always worked for me.