Пример #1
0
bool
FreezeScript::TransformVisitor::checkClasses(const Slice::ClassDeclPtr& dest, const Slice::ClassDeclPtr& src)
{
    //
    // Here are the rules for verifying class compatibility:
    //
    // 1. If the type ids are the same, assume they are compatible.
    // 2. If the source type has been renamed, then check its equivalent new definition for compatibility.
    // 3. Otherwise, the types are only compatible if they are defined in the same Slice unit, and if the
    //    destination type is a base type of the source type.
    //
    string s1 = dest->scoped();
    string s2 = src->scoped();
    if(s1 == s2)
    {
        return true;
    }
    else
    {
        Slice::TypePtr t = _info->getRenamedType(src);
        Slice::ClassDeclPtr s = Slice::ClassDeclPtr::dynamicCast(t);
        if(s)
        {
            return checkClasses(dest, s);
        }

        if(dest->unit().get() != src->unit().get())
        {
            Slice::TypeList l = dest->unit()->lookupTypeNoBuiltin(s2, false);
            if(l.empty())
            {
                _info->getErrorReporter()->error("class " + s2 + " not found in new Slice definitions");
            }
            s = Slice::ClassDeclPtr::dynamicCast(l.front());
        }
        else
        {
            s = src;
        }

        if(s)
        {
            Slice::ClassDefPtr def = s->definition();
            if(!def)
            {
                _info->getErrorReporter()->error("class " + s2 + " declared but not defined");
            }
            return def->isA(s1);
        }
    }

    return false;
}
Пример #2
0
bool
FreezeScript::AssignVisitor::checkClasses(const Slice::ClassDeclPtr& dest, const Slice::ClassDeclPtr& src)
{
    string s1 = dest->scoped();
    string s2 = src->scoped();
    if(s1 == s2)
    {
        return true;
    }
    else
    {
        Slice::ClassDefPtr def = src->definition();
        if(!def)
        {
            error("class " + s2 + " declared but not defined");
        }
        return def->isA(s1);
    }

    return false;
}
Пример #3
0
bool
FreezeScript::invokeMemberFunction(const string& name, const DataPtr& target, const DataList& args, DataPtr& result,
                                   const DataFactoryPtr& factory, const ErrorReporterPtr& errorReporter)
{
    //
    // string
    //
    StringDataPtr targetStr = StringDataPtr::dynamicCast(target);
    if(targetStr)
    {
        if(name == "find")
        {
            StringDataPtr argData;
            IntegerDataPtr startData;
            if(args.size() > 0)
            {
                argData = StringDataPtr::dynamicCast(args[0]);
            }
            if(args.size() > 1)
            {
                startData = IntegerDataPtr::dynamicCast(args[1]);
            }
            if(args.size() == 0 || args.size() > 2 || !argData || (args.size() == 2 && !startData))
            {
                errorReporter->error("invalid arguments to find(string str[, int len])");
            }
            string targ = targetStr->stringValue();
            string arg = argData->stringValue();
            string::size_type pos;
            if(startData)
            {
                string::size_type start = static_cast<string::size_type>(startData->integerValue());
                pos = targ.find(arg, start);
            }
            else
            {
                pos = targ.find(arg);
            }
            result = factory->createInteger(pos == string::npos ? -1 : static_cast<Ice::Long>(pos), false);
            return true;
        }
        else if(name == "substr")
        {
            IntegerDataPtr startData;
            IntegerDataPtr lenData;
            if(args.size() > 0)
            {
                startData = IntegerDataPtr::dynamicCast(args[0]);
            }
            if(args.size() > 1)
            {
                lenData = IntegerDataPtr::dynamicCast(args[1]);
            }
            if(args.size() == 0 || args.size() > 2 || !startData || (args.size() == 2 && !lenData))
            {
                errorReporter->error("invalid arguments to substr(int start[, int len])");
            }
            string targ = targetStr->stringValue();
            string::size_type start = static_cast<string::size_type>(startData->integerValue());
            string::size_type len = string::npos;
            if(lenData)
            {
                len = static_cast<string::size_type>(lenData->integerValue());
            }
            if(start > targ.size())
            {
                ostringstream ostr;
                ostr << "substr() starting position (" << start << ") is greater than string length ("
                     << targ.size() << ")";
                errorReporter->error(ostr.str());
            }
            result = factory->createString(targ.substr(start, len), false);
            return true;
        }
        else if(name == "replace")
        {
            IntegerDataPtr startData;
            IntegerDataPtr lenData;
            StringDataPtr strData;
            if(args.size() == 3)
            {
                startData = IntegerDataPtr::dynamicCast(args[0]);
                lenData = IntegerDataPtr::dynamicCast(args[1]);
                strData = StringDataPtr::dynamicCast(args[2]);
            }
            if(args.size() != 3 || !startData || !lenData || !strData)
            {
                errorReporter->error("invalid arguments to replace(int start, int len, string val)");
            }
            string targ = targetStr->stringValue();
            string::size_type start = static_cast<string::size_type>(startData->integerValue());
            string::size_type len = static_cast<string::size_type>(lenData->integerValue());
            string str = strData->stringValue();
            if(start > targ.size())
            {
                ostringstream ostr;
                ostr << "replace() starting position (" << start << ") is greater than string length ("
                     << targ.size() << ")";
                errorReporter->error(ostr.str());
            }
            result = factory->createString(targ.replace(start, len, str), false);
            return true;
        }

        return false;
    }

    //
    // Object
    //
    ObjectRefPtr targetObj = ObjectRefPtr::dynamicCast(target);
    if(targetObj)
    {
        if(name == "ice_isA")
        {
            ObjectDataPtr value = targetObj->getValue();
            if(!value)
            {
                errorReporter->error("ice_isA() invoked on nil object");
            }
            StringDataPtr str;
            if(args.size() > 0)
            {
                str = StringDataPtr::dynamicCast(args.front());
            }
            if(args.size() != 1 || !str)
            {
                errorReporter->error("invalid arguments to ice_isA(string id)");
            }

            string id = str->stringValue();
            if(id == "::Ice::Object")
            {
                result = factory->createBoolean(true, false);
                return true;
            }

            Slice::ClassDeclPtr decl = Slice::ClassDeclPtr::dynamicCast(value->getType());
            if(!decl)
            {
                //
                // Ice::Object
                //
                result = factory->createBoolean(false, false);
                return true;
            }

            Slice::ClassDefPtr def = decl->definition();
            assert(def);
            result = factory->createBoolean(def->isA(id), false);
            return true;
        }

        return false;
    }

    return false;
}