void (@NotNull PsiReferenceExpression expression) { if (queried) return; super.visitReferenceExpression(expression); final PsiElement parent = ParenthesesUtils.getParentSkipParentheses(expression); if (parent instanceof PsiPolyadicExpression polyadicExpression) { final IElementType tokenType = polyadicExpression.getOperationTokenType(); if (!JavaTokenType.PLUS.equals(tokenType) || !ExpressionUtils.hasStringType(polyadicExpression)) { return; } } else if (!(parent instanceof PsiTemplate)) { return; } final PsiElement target = expression.resolve(); if (!variable.equals(target)) { return; } queried = true; }