diff options
Diffstat (limited to 'src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp')
| -rw-r--r-- | src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp | 128 |
1 files changed, 18 insertions, 110 deletions
diff --git a/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp b/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp index 94d2467..8f50729 100644 --- a/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp +++ b/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp @@ -79,9 +79,12 @@ static int luaEval(lua_State* luaState, const std::string& expr) { static Data getLuaAsData(lua_State* _luaState, const luabridge::LuaRef& lua) { Data data; if (lua.isFunction()) { - // TODO: this might lead to a stack-overflow - luabridge::LuaRef luaEvald = lua(); - return getLuaAsData(_luaState, luaEvald); + // we are creating __tmpFunc + // then it will be assigned to data variable + luabridge::setGlobal(_luaState, lua, "__tmpFunc"); + + data.atom = "__tmpFunc"; + data.type = Data::INTERPRETED; } else if(lua.isLightUserdata() || lua.isUserdata()) { // not sure what to do } else if(lua.isThread()) { @@ -353,49 +356,23 @@ void LuaDataModel::setEvent(const Event& event) { Data LuaDataModel::evalAsData(const std::string& content) { Data data; - ErrorEvent originalError; std::string trimmedExpr = boost::trim_copy(content); - try { - int retVals = luaEval(_luaState, "return(" + trimmedExpr + ")"); - if (retVals == 1) { - data = getLuaAsData(_luaState, luabridge::LuaRef::fromStack(_luaState, -1)); - } - lua_pop(_luaState, retVals); - return data; - } catch (ErrorEvent e) { - originalError = e; - } - - int retVals = 0; - try { - // evaluate again without the return() - retVals = luaEval(_luaState, trimmedExpr); - } catch (ErrorEvent e) { - throw originalError; // we will assume syntax error and throw - } - -#if 1 - // Note: Empty result is not an error test302, but how to do test488? - if (retVals == 0 && !isValidSyntax(trimmedExpr)) { - throw originalError; // we will assume syntax error and throw + int retVals = luaEval(_luaState, "return(" + trimmedExpr + ")"); + if (retVals == 1) { + data = getLuaAsData(_luaState, luabridge::LuaRef::fromStack(_luaState, -1)); } -#endif - - try { - if (retVals == 1) { - data = getLuaAsData(_luaState, luabridge::LuaRef::fromStack(_luaState, -1)); - } - lua_pop(_luaState, retVals); - return data; + lua_pop(_luaState, retVals); + return data; +} - } catch (ErrorEvent e) { - throw e; // we will assume syntax error and throw - } +void LuaDataModel::eval(const std::string& content) { + std::string trimmedExpr = boost::trim_copy(content); + int retVals = luaEval(_luaState, trimmedExpr); - return data; + lua_pop(_luaState, retVals); } bool LuaDataModel::isValidSyntax(const std::string& expr) { @@ -508,81 +485,12 @@ void LuaDataModel::assign(const std::string& location, const Data& data, const s // JSObjectSetProperty(_ctx, JSContextGetGlobalObject(_ctx), JSStringCreateWithUTF8CString(location.c_str()), getNodeAsValue(data.node), 0, &exception); } else { - // trigger error.execution for undefined locations, test286 test311 - int retVals = luaEval(_luaState, location + " = " + location); - lua_pop(_luaState, retVals); - - std::list<std::pair<std::string, bool> > idPath; - size_t start = 0; - for (size_t i = 0; i < location.size(); i++) { - if (location[i] == '.' || location[i] == '[') { - idPath.push_back(std::make_pair(location.substr(start, i - start), false)); - start = i + 1; - } else if (location[i] == ']') { - idPath.push_back(std::make_pair(location.substr(start, i - start), true)); - start = i + 1; - } - } - if (start < location.size()) - idPath.push_back(std::make_pair(location.substr(start, location.size() - start), false)); - - if (idPath.size() == 0) - return; luabridge::LuaRef lua = getDataAsLua(_luaState, data); - if (idPath.size() == 1) { - // trivial case where we reference a simple toplevel identifier - luabridge::setGlobal(_luaState, lua, location.c_str()); - - } else { - auto globalId = idPath.front(); - idPath.pop_front(); - - auto field = idPath.back(); - idPath.pop_back(); - - luabridge::LuaRef topValue = luabridge::getGlobal(_luaState, globalId.first.c_str()); - luabridge::LuaRef value = topValue; - - for (auto ident : idPath) { - if (!value.isTable()) - value = luabridge::newTable(_luaState); + luabridge::setGlobal(_luaState, lua, "__tmpAssign"); + eval(location + "= __tmpAssign"); - if (ident.second) { - luabridge::LuaRef tmp = value[strTo<long>(ident.first)]; - } else { - luabridge::LuaRef tmp = value[ident]; - value = tmp; - } - } - if (field.second) { - if (field.first.length() == 0) { - ERROR_EXECUTION_THROW("Subscript operator is empty"); - } - - if (!isNumeric(field.first.c_str(), 10) && field.first[0] != '"' && field.first[0] != '\'') { - // evaluate subscript as variable - Data subscript = evalAsData(field.first); - if (subscript.atom.length() > 0) { - field.first = subscript.atom; - } else { - ERROR_EXECUTION_THROW("Evaluated subscript operator '" + subscript.asJSON() + "' is invalid"); - } - } - - if (isNumeric(field.first.c_str(), 10)) { - // numeric array subscript - value[strTo<long>(field.first)] = lua; - } else { - // string array subscript - value[field.first] = lua; - } - } else { - value[field.first] = lua; - } - - } // std::cout << Data::toJSON(evalAsData(location)) << std::endl; } |