private static JetValueArgumentList findCall(CreateParameterInfoContext context) { // todo: calls to this constructors, when we will have auxiliary constructors PsiFile file = context.getFile(); if (!(file instanceof JetFile)) { return null; } JetValueArgumentList argumentList = PsiTreeUtil.getParentOfType( file.findElementAt(context.getOffset()), JetValueArgumentList.class); if (argumentList == null) { return null; } final JetSimpleNameExpression callNameExpression = getCallSimpleNameExpression(argumentList); if (callNameExpression == null) { return null; } PsiReference[] references = callNameExpression.getReferences(); if (references.length == 0) { return null; } ResolutionFacade resolutionFacade = ResolvePackage.getResolutionFacade(callNameExpression.getContainingJetFile()); final BindingContext bindingContext = resolutionFacade.analyze(callNameExpression, BodyResolveMode.FULL); ModuleDescriptor moduleDescriptor = resolutionFacade.findModuleDescriptor(callNameExpression); JetScope scope = bindingContext.get(BindingContext.RESOLUTION_SCOPE, callNameExpression); final DeclarationDescriptor placeDescriptor; if (scope != null) { placeDescriptor = scope.getContainingDeclaration(); } else { placeDescriptor = null; } Function1<DeclarationDescriptor, Boolean> visibilityFilter = new Function1<DeclarationDescriptor, Boolean>() { @Override public Boolean invoke(DeclarationDescriptor descriptor) { if (placeDescriptor == null) return true; if (!(descriptor instanceof DeclarationDescriptorWithVisibility)) return true; return CorePackage.isVisible( (DeclarationDescriptorWithVisibility) descriptor, placeDescriptor, bindingContext, callNameExpression); } }; final Name refName = callNameExpression.getReferencedNameAsName(); Function1<Name, Boolean> nameFilter = new Function1<Name, Boolean>() { @Override public Boolean invoke(Name name) { return name.equals(refName); } }; Collection<DeclarationDescriptor> variants = new ReferenceVariantsHelper( bindingContext, moduleDescriptor, file.getProject(), visibilityFilter) .getReferenceVariants( callNameExpression, new DescriptorKindFilter( DescriptorKindFilter.FUNCTIONS_MASK | DescriptorKindFilter.CLASSIFIERS_MASK, Collections.<DescriptorKindExclude>emptyList()), nameFilter, false, false); Collection<Pair<? extends DeclarationDescriptor, ResolutionFacade>> itemsToShow = new ArrayList<Pair<? extends DeclarationDescriptor, ResolutionFacade>>(); for (DeclarationDescriptor variant : variants) { if (variant instanceof FunctionDescriptor) { // todo: renamed functions? itemsToShow.add(Pair.create((FunctionDescriptor) variant, resolutionFacade)); } else if (variant instanceof ClassDescriptor) { // todo: renamed classes? for (ConstructorDescriptor constructorDescriptor : ((ClassDescriptor) variant).getConstructors()) { itemsToShow.add(Pair.create(constructorDescriptor, resolutionFacade)); } } } context.setItemsToShow(ArrayUtil.toObjectArray(itemsToShow)); return argumentList; }
@Override public void showParameterInfo( @NotNull JetValueArgumentList element, @NotNull CreateParameterInfoContext context) { context.showHint(element, element.getTextRange().getStartOffset(), this); }