Re: [cdt-dev] How to restart the language provider scanner?

[Jan Baeyens <jan@xxxxxxxxxx>]

Andrew
On 08-Mar-13 00:41, Andrew Gvozdev wrote:
> Hi Jantje,
>
> On Thu, Mar 7, 2013 at 3:02 PM, Jan Baeyens <jan@xxxxxxxxxx> wrote:
> > Andrew
> > Thanks for the answer. It got me closer to understanding but not yet to the
> > answer to my question
> >
> >
> > What is the API code to force the language provider to rerun?
> >
> > As you suggested I put a breakpoint in
> >
> > AbstractBuiltinSpecsDetector.execute()
> >
> > I learned from that when you do
> >
> >
> > [Clear Entries] and use [Apply] or [OK] button.
> >
> > There is no scan because the value of isExecuted is true.
> [Clear Entries] calls clear() method of the provider which sets
> isExecuted to false. Did you override clear() by any chance?
I did not override clear. Clear does get called in my scenario. I put a 
breakpoint on change of isExecuted to be 100% sure.
> >      protected void execute() {
> >
> >          if (isExecuted) {
> >
> >              return;
> >
> >          }
> >
> > On the other hand when I do as I suggested isExecuted is false and a
> > recalculation is done.
> >
> > As to
> >
> >
> > It is a bit more complicated than that. If you change project settings
> > in UI and rerun provider before saving the settings you are getting in
> > inconsistent state. Suppose the user cancels project settings changes.
> > You get old settings and provider results corresponding to
> > non-existent project state.
> >
> > I action this when the user presses ok and I do not start a monitor so there
> > is no cancel.
> > I save all settings.
> > I delete the build folder (Because the outcome of previous build is
> > completely invalid )
> > I tell the language provider to rerun.
> >
> > But I still don't know how to force the language provider to rerun.
> It is done internally based on isExecuted flag after OK button is
> pressed. Keep in mind that it happens in background thread. Do you use
> UI from CDT or developing your own?
I have my own UI which is completely different as it focusses on Arduino 
development. When you change a board you may have changed the compiler 
as such I would like to force the language provider to rerun. The fact 
it is a background thread is not that harmful to me. After all the juno 
impleentation of the indexer is far better than the previous versions. 
But without the rerun I'm a bit stuck. I've come up with this code but 
there is still somewhere an issue (the first compile always fails. I'm 
not sure though to is related to this code.

        // ICProjectDescriptionManager mngr = 
CoreModel.getDefault().getProjectDescriptionManager();
        // ICProjectDescription projectDescription = 
mngr.getProjectDescription(project, true);
        List<ILanguageSettingsProvider> providers;
        // ICConfigurationDescription cfgDescription = 
projectDescription.getDefaultSettingConfiguration();
        if (cfgDescription instanceof ILanguageSettingsProvidersKeeper) {
            providers = new 
ArrayList<ILanguageSettingsProvider>(((ILanguageSettingsProvidersKeeper) 
cfgDescription).getLanguageSettingProviders());
            for (ILanguageSettingsProvider provider : providers) {
                if ((provider instanceof AbstractBuiltinSpecsDetector)) 
{ // basically check for working copy
                    // clear and reset isExecuted flag
                    ((AbstractBuiltinSpecsDetector) provider).clear();
                }
            }
        }
Thanks
Jan

> Thanks,
> Andrew
>
> > Best regards
> > Jantje
> >
> >
> >
> > On 06-Mar-13 14:46, Andrew Gvozdev wrote:
> > > Hi Jan,
> > > It is a bit more complicated than that. If you change project settings
> > > in UI and rerun provider before saving the settings you are getting in
> > > inconsistent state. Suppose the user cancels project settings changes.
> > > You get old settings and provider results corresponding to
> > > non-existent project state.
> > >
> > > So, in current UI to rerun provider you would [Clear Entries] and use
> > > [Apply] or [OK] button. [Clear Entries] will create a temporary copy
> > > of the provider which has not been executed yet. [OK] button will save
> > > the project settings and trigger reruns of not-executed providers. You
> > > can inspect stack trace if you set breakpoint in
> > > AbstractBuiltinSpecsDetector.execute() method.
> > >
> > > Thanks,
> > > Andrew
> > >
> > > On Tue, Mar 5, 2013 at 6:12 PM, Jan Baeyens <jan@xxxxxxxxxx> wrote:
> > > > Hi
> > > > In my eclipse plugin I have project settings that when I change them The
> > > > language provider needs to be rerun because I'm using another compiler.
> > > > I found a way in the gui to rerun the language provider (project
> > > > properties->C/C++ General->Code Analysis->Preprocessor Include Paths,
> > > > Maros
> > > > etc Select providers tab; select the provider;Select reset; select OK
> > > > Sometimes the reset is not enabled in which case you can change the
> > > > command
> > > > as work around.
> > > > Eclipse spy tells me the button is on LanguageSettingProviderPage but I
> > > > failed to find the code.
> > > > My question is: What is the API code to force the language provider to
> > > > rerun?
> > > > Best regards
> > > > Jantje
> > > > _______________________________________________
> > > > cdt-dev mailing list
> > > > cdt-dev@xxxxxxxxxxx
> > > > https://dev.eclipse.org/mailman/listinfo/cdt-dev
> > > _______________________________________________
> > > cdt-dev mailing list
> > > cdt-dev@xxxxxxxxxxx
> > > https://dev.eclipse.org/mailman/listinfo/cdt-dev
> > _______________________________________________
> > cdt-dev mailing list
> > cdt-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/cdt-dev
> _______________________________________________
> cdt-dev mailing list
> cdt-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/cdt-dev