Re: troubles learning OOP: expected type "Parent.Some_Child", found type Parent'Class

[Mehdi Saada <00120260a@gmail.com>]

> Why? An Indefinite_Vector of T_Token'Class would be better.
Because it's my course, and I can rewrite the whole thing, or it would be pointless. I wouldn't use OOP to begin with, if it was me. Plus, I never used containers, so it would be more work/new things, and that's already an awful lot at once. And I would really miss the built-in array slice syntax. I long for the day they add this for containers in the norm. Is it meant in the next one ?

I found that THAT piece, that part of the case statement in the analysis part, is NEVER walked through. I don't get it.

when '1' .. '9' =>
  declare
    FIRST, FIN : NATURAL := 0;
      begin
	Find_Token (CHAINE, TO_SET ("123456789"), INDEX_COURANT, INSIDE, First, FIN);
        PUT_LINE("LONG_VEC_OUT: " & INTEGER'Image(LONG_VEC_OUT) & " INDEX_COURANT:" & INTEGER'Image(INDEX_COURANT));
        V (LONG_VEC_OUT) := new T_Token_Operande'(TO_TOKEN (INTEGER'Value (CHAINE (FIRST .. FIN)))); 
	INDEX_COURANT := FIN;
   exception when others => PUT_LINE ("HERE !");    

The input:
root@debian:~/td travail 18/essai# ./expression < test.in 
45+454;

LONG_VEC_OUT:  1 INDEX_COURANT: 1
LONG_VEC_OUT:  2 INDEX_COURANT: 3
LONG_VEC_OUT:  3 INDEX_COURANT: 7
ICI !
Analyse pass�e
 5 5 5Syntaxe pass�e 
erreur de syntaxe

Something strange happen and operators are not recorded.
In desperation, I published the whole code (I'll change it according to your advice. I think you would need only the second, four and third (to have an exemple).
expression.adb (the test) ! https://pastebin.com/ix2YVrCE
p_expression.adb : https://pastebin.com/i9AAgdwQ
p_expression.ads : https://pastebin.com/Tkba3hJx
p_token.ads : https://pastebin.com/gJT7ggpp
p_token-operande.adb : https://pastebin.com/nL1SrAP9
p_token-operande.ads : https://pastebin.com/eCKgaaBS
p_token-operateur.adb : https://pastebin.com/3EsUeVDp
p_token-operateur.ads : https://pastebin.com/0dLJjRvB
p_token-parenthese.adb : https://pastebin.com/0L7sN7bF
p_token-parenthese.ads : https://pastebin.com/GqFfzfTM
p_token-terminateur.ads : https://pastebin.com/gcpNpuR5
p_token-terminateur.adb : https://pastebin.com/PPZSXC3R