Method getErrorReturnValue

erpcgen/src/CGenerator.cpp:1878–1952

}

string CGenerator::getErrorReturnValue(FunctionBase *fn)
{
    Symbol *symbol = dynamic_cast<Symbol *>(fn);
    assert(symbol);

    Value *returnVal = getAnnValue(symbol, ERROR_RETURN_ANNOTATION);
    DataType *dataType = fn->getReturnType()->getTrueDataType();
    if (returnVal)
    {
        if (returnVal->toString().empty())
        {
            throw semantic_error(format_string("Expected value for @%s annotation for function on line %d",
                                               ERROR_RETURN_ANNOTATION, symbol->getLocation().m_firstLine));
        }
        else if (dataType->isString())
        {
            return (dataType->isUString() ? "(unsigned char *)" : "(char*)") + returnVal->toString();
        }
        else if (dataType->isScalar())
        {
            BuiltinType *builtinType = dynamic_cast<BuiltinType *>(dataType);
            assert(builtinType);
            if (builtinType->getBuiltinType() == BuiltinType::builtin_type_t::kBoolType)
            {
                IntegerValue *integerValue = dynamic_cast<IntegerValue *>(returnVal);
                assert(integerValue);
                return (integerValue->getValue()) ? "true" : "false";
            }
        }
        return returnVal->toString();
    }
    else
    {
        if (dataType->isScalar())
        {
            BuiltinType *builtinType = dynamic_cast<BuiltinType *>(dataType);
            assert(builtinType);
            switch (builtinType->getBuiltinType())
            {
                case BuiltinType::builtin_type_t::kBoolType:
                {
                    return "false";
                }
                case BuiltinType::builtin_type_t::kUInt8Type:
                {
                    return "0xFFU";
                }
                case BuiltinType::builtin_type_t::kUInt16Type:
                {
                    return "0xFFFFU";
                }
                case BuiltinType::builtin_type_t::kUInt32Type:
                {
                    return "0xFFFFFFFFU";
                }
                case BuiltinType::builtin_type_t::kUInt64Type:
                {
                    return "0xFFFFFFFFFFFFFFFFU";