[Qt-creator] code completion anomaly

[Danny Price]

On Fri, Jan 29, 2010 at 1:33 PM, Mark Brand <mabrand at mabrand.nl> wrote:

>
>  "aaa->" triggers code completion but should not.
>>
>> "aaa." should trigger code completion but does not.
>>
>>
> Creator seems to have issues with nested classes. It actually used to crash
> in this case but that bug was fixed (once I finally convinced Nokia it was a
> problem...).
>
> My adivce is to not use nested classes.
>
>
> Some people actually like to use trivial nested classes to aid in code
> completion. It can be convenient to type in something like "aaa." and then
> quickly choose what you want. Think of it as a namespace within a class.
>

You should write code based on best coding and design practice, not to
adhere to the whims of a particular IDE's syntax completion. Class nesting
is like function nesting in old C - it get's out of control fast. Pmpl is an
exception (and in that case the class is defined within the cpp file
anyway). For most other cases, class friendships are better.


>
> Two new discoveries:
>
> 1) Code completion is not the only problem.  "Find usages" doesn't work
> either.
>
> 2) If you separate the member declaration from the nested class
> declaration, neither problem occurs. This a good workaround. See example
> below:
>
>
> class MainWindow : public QMainWindow {
>     Q_OBJECT
> public:
>     explicit MainWindow(QWidget *parent = 0);
>     ~MainWindow();
>
> private:
>     Ui::MainWindow *ui;
>
>     class AAA
>     {
>     public:
>         int a;
>         int b;
>         int c;
>     } aaa;  //code completion and "find usages" don't work
>
>     AAA bbb; //code completion and "find usages" work
> };
>
>
>
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>
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