Memleak on fpjson example
lazarus / 62-General

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soerensen3 · 2017-11-27 16:05

Dear all,

the second example of the fpjson examples in the official doc causes a
memleak on https://www.freepascal.org/docs-html/fcl/fpjson/index.html
If you compile with -gh you can see what I mean.

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  
D:=GetJSON('{ "Children" : ['+             '  { "Age" : 23, '+       
    '    "Names" : { "LastName" : "Rodriquez",'+             '       
       "FirstName" : "Roberto" }},'+             '  { "Age" : 20,'+  
         '    "Names" : { "LastName" : "Rodriquez",'+             '  
            "FirstName" : "Maria" }}'+             '  ]}'); 
E:=D.FindPath('Children[1].Names.FirstName');  Writeln(E.AsJSON); 
FreeAndNil( D ); //<--- This line is missing!
In general I think the documentation should say something about the
management of descendants of TJSONData (Or did I miss something?). As
far as I know it  it is in the responsibility of the user to free the
root element but child elements get freed automatically.

Is there some way you can suggest changes to the documentation?

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balazsszekely · 2017-11-27 16:11

QuoteIs there some way you can suggest changes to the
documentation?Mailing list, bugtracker.

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soerensen3 · 2017-11-27 17:46

I filed a bug report: https://bugs.freepascal.org/view.php?id=32737