Code completion not working in a conditional statement that includes
negation
lazarus / 9-Editor

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om_os · 2016-07-07 20:08

In the IDE I am able to get parameter hints and code completion in the
following case:

{$IFC Target_Windows}
   PROCEDURE TTextList.UnloadStuff;

   BEGIN
      IF fMyLoaded THEN                             <-- putting the
cursor on fMyLoaded shows its type
      BEGIN
         fMyArray.ResizeArray(0);            <-- typing a '.' after
fMyArray shows the possible functions allowed

BUT using the same code with

{$IFC NOT Target_iPhoneOS}

does not show any hints or code completion.


My project custom options are :
-Sx -gttt -dTarget_Windows:=TRUE -dTarget_MacOSX:=FALSE
-dTarget_iPhoneOS:=FALSE

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Leledumbo · 2016-07-08 08:57

Codetools follows conditional compilation. If a symbol is not defined,
the respective code block will be ignored.

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om_os · 2016-07-08 15:52

So a -dTarget_iPhoneOS:=FALSE is considered 'not defined'?

Shouldn't the code within
     {$IFC NOT Target_iPhoneOS}
behave the same as the code within
     {$IFC Target_Windows}
?

It used to behave the same in Laz 1.2. 

Can you think of a workaround that will still compile for other
platforms?

I am really desperate to find a workaround that will work for all
platforms and still will give me code completion etc.

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Thaddy · 2016-07-08 16:14

I wouldn't use {$IFC} but just {$IF} and I would not use NOT in this
way.  The {$IFC} stuff is strictly macpas syntax and unless you indeed
use that dialect to compile for all platforms absolutely not
necessary. So drop the C.
Use Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$IF NOT
Defined(TARGET_IPHONE_OS)} may be helpful, though. And works...

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om_os · 2016-07-08 16:26

The $IF with NOT that you gave as example is not working for me
either.

Sorry.

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molly · 2016-07-08 17:05

Try:
Code: [Select]{$IFNDEF Target_iPhoneOS}
 ... put in here your conditional code ...
{$ENDIF}

You can check/use each condition by defining it in top of your source
manually.
Code: [Select]{$DEFINE Target_iPhoneOS}
{$DEFINE Target_windows}

But... i would only recommend to use such defines for platforms that
are difficult to distinguish, e.g. Windows already has enough defines,
as well as Linux and MacOS (amongst others). Or at the least base your
defines on existing ones as much as possible.
Code: [Select]{$IFDEF WINDOWS}
  {$DEFINE Target_windows}
{$ENDIF}

Keep in mind though. Codetools is only able to help you when the
corresponding underlying code is 'activate' as well. And i believe
there lies your problem, because you did not show where/how TTextList
is 'conditioned'.

I seem to remember an issue in bugtracker which mentions "if"
conditional processing issues.

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om_os · 2016-07-08 22:15

Molly,  thank you for taking the time to elaborate.

My TTextList is 'condtioned' - defined with the same {$IFC NOT
Target_iPhoneOS}.

I cannot use IFDEF because we need to be macPascal compatible.

It seems like the IDE has a bug in version 1.6 on a negative $IFC in
the declaration.

Trying a somewhat positive condition like this -- did not generate
different results:
{$IFC Target_iPhoneOS}
{$ELSEC}
   define TExtLIst object and some constants
{$ENDC}

Does anyone else see this bug?

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molly · 2016-07-08 22:58

Quote from: om_os on July 09, 2016, 12:15:43 amI cannot use IFDEF
because we need to be macPascal compatible.
Ah, sorry. i did not realized that.

QuoteIt seems like the IDE has a bug in version 1.6 on a negative $IFC
in the declaration.
...
Does anyone else see this bug?

It might perhaps be related to this bugreport. Someone with more
knowledge on the subject required to make sure.

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Thaddy · 2016-07-09 06:35

No, it's not. BTW:the different ways of using conditionals are more or
less independent of the modes.

I suggest you use this, which is tested:
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 program
testdef;{$IF NOT Defined(TARGET_IPHONE_OS)}{$mode objfpc}{$ELSE}{$mode
macpas}{$IFEND}begin{$IF NOT Defined(TARGET_IPHONE_OS)}writeln('This
is not for an iPhone');{$ELSE}writeln('For iPhone');{$IFEND}end.

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marcov · 2016-07-09 07:40

Quote from: om_os on July 08, 2016, 05:52:25 pmSo a
-dTarget_iPhoneOS:=FALSE is considered 'not defined'?

Try changing the := to =

:= defines a macro, = defines a conditional.