void () { UExpression element = getUastElement(); assert element != null; UElement pDeclaration = UastUtils.getParentOfType(element, true, UMethod.class, UClass.class, ULambdaExpression.class, UField.class); if (pDeclaration != null) { RefElement pDeclarationRef = getRefManager().getReference(pDeclaration.getSourcePsi()); if (pDeclarationRef != null) { ((WritableRefEntity)pDeclarationRef).add(this); } } }