void (@NotNull CompletionParameters parameters, @NotNull ProcessingContext context, final @NotNull CompletionResultSet result) { LegacyCompletionContributor.processReferences(parameters, result, (reference, set) -> { if (reference instanceof TagNameReference) { collectCompletionVariants((TagNameReference)reference, set); } else if (reference instanceof SchemaPrefixReference) { TagNameReference tagNameReference = ((SchemaPrefixReference)reference).getTagNameReference(); if (tagNameReference != null && !tagNameReference.isStartTagFlag()) { set.consume(createClosingTagLookupElements((XmlTag)tagNameReference.getElement(), true, tagNameReference.getNameElement()).get(0)); } } }); }