void (@NotNull UBinaryExpression node, @NotNull ProblemsHolder holder) { if (!SUPPORTED_OPERATORS.contains(node.getOperator())) return; if (isNull(node.getLeftOperand()) || isNull(node.getRightOperand())) return; PsiMethod psiMethod = node.resolveOperator(); if (psiMethod == null) return; if (!METHOD_NAMES.contains(psiMethod.getName())) return; inspectMethodCall(psiMethod, holder, () -> { UIdentifier identifier = node.getOperatorIdentifier(); return identifier != null ? identifier.getSourcePsi() : null; }); }