public Object tryAssignOverload()

in src/main/java/org/apache/commons/jexl3/internal/Operator.java [423:462]
34 lines of code
10 McCabe index (conditional complexity)

    public Object tryAssignOverload(final JexlCache.Reference node,
                             final JexlOperator operator,
                             final Consumer<Object> assignFun,
                             final Object... args) {
        if (args.length < operator.getArity()) {
            return JexlEngine.TRY_FAILED;
        }
        Object result = JexlEngine.TRY_FAILED;
        try {
            // if the operator is strict, the left-hand side can not be null
            controlNullOperands(arithmetic, operator, args[0]);
            // attempt assignment operator overload
            if (overloads(operator)) {
                result = tryOverload(node, operator, arguments(operator, args));
                if (result != JexlEngine.TRY_FAILED) {
                    return result;
                }
            }
            // let's attempt base operator overload
            final JexlOperator base = operator.getBaseOperator();
            if (base != null && overloads(base)) {
                result = tryOverload(node, base, arguments(base, args));
            }
            // no overload or overload failed, use base operator
            if (result == JexlEngine.TRY_FAILED) {
                result = performBaseOperation(operator, args);
            }
            // on success, assign value
            if (result != JexlEngine.TRY_FAILED) {
                assignFun.accept(result);
                // postfix implies return initial argument value
                if (POSTFIX_OPS.contains(operator)) {
                    result = args[0];
                }
            }
            return result;
        } catch (final Exception any) {
            return operatorError(node, operator, any, JexlEngine.TRY_FAILED);
        }
    }