void executeAbsDbl(Executer &executer)
{
auto argument = executer.topDbl();
if (argument < 0) {
executer.setTop(-argument);
}
}
void executeExponentialIntDbl(Executer &executer)
{
auto y = executer.topDbl();
executer.pop();
auto x = executer.topIntAsDbl();
calculatePowerDblDbl(executer, x, y);
}
void executeCatTmpTmp(Executer &executer)
{
auto rhs = executer.moveTopTmpStr();
executer.pop();
*executer.topTmpStr() += *rhs;
}
inline int32_t popIntegerDivisor(Executer &executer)
{
auto rhs = executer.topInt();
checkDivideByZero(executer, rhs);
executer.pop();
return rhs;
}
inline double popDoubleDivisor(Executer &executer)
{
auto rhs = executer.topDbl();
checkDivideByZero(executer, rhs);
executer.pop();
return rhs;
}
void executeDivideDblInt(Executer &executer)
{
auto rhs = static_cast<double>(popIntegerDivisor(executer));
auto lhs = executer.topDbl();
auto result = lhs / rhs;
executer.setTop(result);
}
void executeExponentialIntInt(Executer &executer)
{
auto y = executer.topInt();
executer.pop();
auto x = executer.topInt();
executer.setTop(PowerIntInt{executer, x, y}());
}
void executeMultiplyIntDbl(Executer &executer)
{
auto rhs = executer.topDbl();
executer.pop();
auto lhs = executer.topIntAsDbl();
multiplyAndCheckResult(executer, lhs, rhs);
}
void executeSubtractDblDbl(Executer &executer)
{
auto rhs = executer.topDbl();
executer.pop();
auto result = executer.topDbl() - rhs;
checkDoubleOverflow(executer, result);
executer.setTop(result);
}
void executeCatStrStr(Executer &executer)
{
auto rhs = executer.topStr();
executer.pop();
executer.setTop(*executer.topStr());
*executer.topTmpStr() += *rhs;
}
void executeIntegerDivide(Executer &executer)
{
auto rhs = popDoubleDivisor(executer);
auto lhs = executer.topDbl();
auto result = lhs / rhs;
checkIntegerOverflow(executer, result);
executer.setTopIntFromDouble(result);
}
void executeAbsInt(Executer &executer)
{
auto argument = executer.topInt();
if (argument < 0) {
checkNegativeIntegerOverflow(executer, argument);
executer.setTop(-argument);
}
}
void executeSqr(Executer &executer)
{
auto argument = executer.topDbl();
if (argument < 0) {
throw RunError {"square root of negative number", executer.currentOffset()};
}
executer.setTop(std::sqrt(argument));
}
void executeRndInt(Executer &executer)
{
auto argument = executer.topInt();
if (argument <= 0) {
throw RunError {"random function on zero or negative number", executer.currentOffset()};
}
executer.setTop(executer.getRandomNumber(argument));
}
void executeLog(Executer &executer)
{
auto argument = executer.topDbl();
if (argument <= 0) {
throw RunError {"logarithm of non-positive number", executer.currentOffset()};
}
executer.setTop(std::log(argument));
}
void executeSubtractIntInt(Executer &executer)
{
auto rhs = executer.topInt();
executer.pop();
auto result = int64_t{executer.topInt()};
result -= rhs;
checkIntegerOverflow(executer, result);
executer.setTopIntFromInt64(result);
}
inline void executeSgn(Executer &executer)
{
auto argument = executer.top<T>();
if (argument > T{0}) {
executer.setTop(T{1});
} else if (argument < 0.0) {
executer.setTop(T{-1});
} else {
executer.setTop(T{0});
}
}
void executeCatStrTmp(Executer &executer)
{
auto rhs_result = executer.topTmpStr();
executer.pop();
auto lhs_rhs = std::string{*executer.topStr()};
std::swap(lhs_rhs, *rhs_result);
executer.setTop(rhs_result);
*executer.topTmpStr() += lhs_rhs;
}
inline void validatePowerResult(double x, double result, Executer &executer)
{
if (std::isnan(result)) {
throw RunError {"domain error (non-integer exponent)", executer.currentOffset()};
} else if (result == HUGE_VAL) {
if (x == 0) {
throw RunError {"divide by zero", executer.currentOffset()};
} else {
throw RunError {"overflow", executer.currentOffset()};
}
}
}
QScriptValue clearConsoleFunction(QScriptContext *context, QScriptEngine *engine)
{
if(!Executer::isExecuterRunning())
return QScriptValue();
QApplication::processEvents();//Call this to prevent UI freeze when calling clear often
QScriptValue calleeData = context->callee().data();
Executer *executer = qobject_cast<Executer *>(calleeData.toQObject());
executer->consoleWidget()->clearExceptSeparators();
return engine->undefinedValue();
}
QScriptValue callProcedureFunction(QScriptContext *context, QScriptEngine *engine)
{
if(!Executer::isExecuterRunning())
return QScriptValue();
if(context->argumentCount() < 1)
return engine->undefinedValue();
QScriptValue calleeData = context->callee().data();
Executer *executer = qobject_cast<Executer *>(calleeData.toQObject());
ActionTools::ActionInstance *currentActionInstance = executer->currentActionInstance();
if(currentActionInstance)
currentActionInstance->callProcedure(context->argument(0).toString());
return engine->undefinedValue();
}
void printCall(QScriptContext *context, ActionTools::ConsoleWidget::Type type)
{
QApplication::processEvents();//Call this to prevent UI freeze when calling print often
QScriptValue calleeData = context->callee().data();
Executer *executer = qobject_cast<Executer *>(calleeData.toQObject());
QString message;
ScriptAgent *agent = executer->scriptAgent();
if(!agent)
return;
for(int argumentIndex = 0; argumentIndex < context->argumentCount(); ++argumentIndex)
message += context->argument(argumentIndex).toString();
switch(executer->scriptAgent()->context())
{
case ScriptAgent::Parameters:
executer->consoleWidget()->addScriptParameterLine(message,
agent->currentParameter(),
agent->currentLine(),
agent->currentColumn(),
type);
break;
case ScriptAgent::Actions:
{
ActionTools::ActionInstance *currentAction = executer->script()->actionAt(executer->currentActionIndex());
qint64 currentActionRuntimeId = -1;
if(currentAction)
currentActionRuntimeId = currentAction->runtimeId();
executer->consoleWidget()->addUserLine(message,
currentActionRuntimeId,
context->engine()->globalObject().property("currentParameter").toString(),
context->engine()->globalObject().property("currentSubParameter").toString(),
agent->currentLine(),
agent->currentColumn(),
context->backtrace(),
type);
}
break;
default:
return;
}
}
variant execution_context::execute()
{
size_t isz = instructions_.size();
while(pc_ < isz)
{
instruction& i = instructions_[pc_];
//td: a fuction table would be better, no?
switch(i.id)
{
case i_jump:
{
pc_ = i.data.value;
jump_ = true;
break;
}
case i_jump_if:
{
bool control = pop();
if (control)
{
pc_ = i.data.value;
jump_ = true;
}
break;
}
case i_jump_if_not:
{
bool control = variant_cast<bool>(pop(), false); //td: its bool or false
if (!control)
{
pc_ = i.data.value;
jump_ = true;
}
break;
}
case i_store:
{
stack_[i.data.value] = pop();
break;
}
case i_load:
{
operands_.push(stack_[i.data.value]);
break;
}
case i_load_constant:
{
operands_.push(constants_[i.data.value]);
break;
}
case i_return: return variant();
case i_return_value: return operands_.top();
case i_dup_top:
{
variant top = operands_.top();
operands_.push( top );
break;
}
case i_pop: operands_.pop(); break;
case i_binary_operator:
{
operator_exec* e = operators_.get_operator(i.data.value);
variant arg2 = pop();
variant arg1 = pop();
variant result = e->exec(arg1, arg2);
operands_.push(result);
break;
}
case i_unary_operator:
{
operator_exec* e = operators_.get_operator(i.data.value);
variant arg1 = pop();
variant useless;
variant result = e->exec(arg1, useless);
operands_.push(result);
break;
}
case i_dynamic_binary_operator:
{
variant arg2 = pop();
variant arg1 = pop();
schema* type1 = true_type(arg1); assert(type1);
schema* type2 = true_type(arg2); assert(type2);
variant result;
operator_type opid = (operator_type)i.data.value;
operator_exec* opexec = operators_.get_operator(opid, type1, type2);
if (!opexec)
{
schema_item custom_operator;
if (type1->resolve(vm_operator_name[opid], custom_operator))
{
assert(custom_operator.exec); //read only
void* caller_id;
if (custom_operator.flags & DYNAMIC_ACCESS)
{
IDynamicObject* obj = arg1; //td: catch type mismatch
caller_id = obj;
}
else
caller_id = arg1.get_pointer();
param_list args;
args.add(arg2);
result = custom_operator.exec->exec(caller_id, args );
}
else
{
if (operators_.get_default_operator(opid, &opexec, null))
{
result = opexec->exec(arg1, arg2);
}
else
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCannotResolveOperator);
error.add("operator", str(vm_operator_name[opid]));
runtime_throw(error);
}
}
}
else result = opexec->exec(arg1, arg2);
operands_.push(result);
break;
}
case i_dynamic_binary_assign_operator:
{
bool assign = false;
variant arg1 = pop();
variant arg2 = pop();
schema* type1 = true_type(arg1); assert(type1);
schema* type2 = true_type(arg2); assert(type2);
variant result;
operator_type opid = (operator_type)i.data.value;
operator_exec* opexec = operators_.get_operator(opid, type1, type2);
if (!opexec)
{
schema_item custom_operator;
if (type1->resolve(vm_operator_name[opid], custom_operator))
{
assert(custom_operator.exec); //read only
void* caller_id;
if (custom_operator.flags & DYNAMIC_ACCESS)
{
IDynamicObject* obj = arg1; //td: catch type mismatch
caller_id = obj;
}
else
caller_id = arg1.get_pointer();
param_list args;
args.add(arg2);
result = custom_operator.exec->exec(caller_id, args );
}
else
{
operator_exec* nopexec = operators_.get_operator(vm_native_op[opid], type1, type2);
if (nopexec)
{
result = nopexec->exec(arg1, arg2);
assign = true;
}
else
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCannotResolveOperator);
error.add("operator", str(vm_operator_name[opid]));
runtime_throw(error);
}
}
}
else result = opexec->exec(arg1, arg2);
operands_.push(result);
operands_.push(!assign);
break;
}
case i_dynamic_unary_operator:
{
variant arg1 = pop();
schema* type1 = true_type(arg1); assert(type1);
variant result;
operator_type opid = (operator_type)i.data.value;
operator_exec* opexec = operators_.get_operator(opid, type1, null);
if (!opexec)
{
schema_item custom_operator;
if (type1->resolve(vm_operator_name[opid], custom_operator))
{
assert(custom_operator.exec); //read only
void* caller_id;
if (custom_operator.flags & DYNAMIC_ACCESS)
{
IDynamicObject* obj = arg1; //td: catch type mismatch
caller_id = obj;
}
else
caller_id = arg1.get_pointer();
param_list args;
result = custom_operator.exec->exec(caller_id, args );
}
else
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCannotResolveOperator);
error.add("operator", str(vm_operator_name[opid]));
runtime_throw(error);
}
}
else
{
variant arg2;
result = opexec->exec(arg1, arg2);
}
operands_.push(result);
break;
}
case i_dynamic_get:
{
str getter_name = constants_[i.data.value];
variant getted = pop();
variant result;
if (!dynamic_try_get(getted, getter_name, result))
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCannotResolveDynamically);
error.add("object", getted);
error.add("property", getter_name);
runtime_throw(error);
}
operands_.push(result);
break;
}
case i_dynamic_set:
{
str getter_name = constants_[i.data.value];
variant getted = pop();
variant value = pop();
variant result;
if (!dynamic_set(getted, getter_name, value))
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCannotAssignDynamically);
error.add("object", getted);
error.add("property", getter_name);
runtime_throw(error);
}
operands_.push(result);
break;
}
case i_dynamic_resolve:
{
str resolve_name = constants_[i.data.value];
variant resolver = operands_.top();
schema* resolver_type = true_type(resolver);
schema_item itm;
if (resolver_type->resolve(resolve_name, itm))
{
operands_.push(itm.exec); //td: not sure this should be done exclusively for executers
}
else
{
IDynamicObject* obj = variant_cast<IDynamicObject*>(resolver, null);
if (obj && obj->resolve(resolve_name, itm))
{
if (!itm.exec)
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SNotExecutableDynamic);
error.add("object", obj);
error.add("method", resolve_name);
runtime_throw(error);
}
operands_.push(itm.exec);
}
else
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCannotResolveDynamically);
error.add("object", obj);
error.add("method", resolve_name);
runtime_throw(error);
}
}
break;
}
case i_load_this:
{
operands_.push( this_ );
break;
}
case i_call:
{
Executer call = pop();
param_list pl;
variant caller;
if (i.data.call_data.invert)
{
caller = pop();
for(int p = 0; p < i.data.call_data.param_count; p++)
{
pl.add(pop());
}
}
else
{
for(int p = 0; p < i.data.call_data.param_count; p++)
{
pl.add(pop());
}
caller = pop();
}
if (caller.empty())
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCallingNull);
runtime_throw(error);
}
void* caller_id;
if (i.data.call_data.is_dynamic)
{
IDynamicObject* obj = variant_cast<IDynamicObject*>(caller, null);
if (obj)
caller_id = obj;
else
caller_id = caller.get_pointer(); //revert to undynamic, there should be a better solution
}
else
caller_id = caller.get_pointer();
variant result = call->exec(caller_id, pl);
operands_.push( result );
break;
}
case i_this_call:
{
Executer call = pop();
param_list pl;
for(int p = 0; p < i.data.call_data.param_count; p++)
{
pl.add(pop());
}
void* caller_id;
if (i.data.call_data.is_dynamic)
{
IDynamicObject* obj = this_; //td: catch type mismatch
caller_id = obj;
}
else
caller_id = this_.get_pointer();
operands_.push( call->exec(caller_id, pl) );
break;
}
case i_get:
{
Getter call = pop();
variant caller = pop();
if (caller.empty())
{
param_list error;
error.add("id", SRuntime);
error.add("desc", SCallingNull);
runtime_throw(error);
}
void* caller_id;
if (i.data.value)
{
IDynamicObject* obj = caller; //td: catch type mismatch
caller_id = obj;
}
else
caller_id = caller.get_pointer();
variant result = call->get(caller_id);
operands_.push(result);
break;
}
case i_set:
{
Setter call = pop();
variant value;
variant caller;
if (i.data.set_data.invert)
{
caller = pop();
value = pop();
}
else
{
value = pop();
caller = pop();
}
void* caller_id;
if (i.data.set_data.is_dynamic)
{
IDynamicObject* obj = caller; //td: catch type mismatch
caller_id = obj;
}
else
caller_id = caller.get_pointer();
call->set(caller_id, value);
break;
}
case i_instantiate:
{
schema* type = pop();
param_list pl;
for(int p = 0; p < i.data.value; p++)
{
pl.add(pop());
}
variant result;
if (type->create(result, &pl))
operands_.push(result);
else
{
param_list error;
error.add("id", SRuntime);
error.add("desc", STypeDoesNotInstantiate);
runtime_throw(error);
}
break;
}
case i_dispatch:
{
event_info ev = pop();
IDynamicObject* caller = pop();
param_list pl;
for(int p = 0; p < i.data.value; p++)
{
pl.add(pop());
}
caller->dispatch_event(ev.id, pl);
break;
}
case i_nop: break;
default:
assert(false); //say wha
}
if (!jump_)
pc_++;
jump_ = false;
}
return variant();
}
int main() {
Engine* engine = new Engine();
Executer* executer = new Executer();
Parser* parser = new Parser();
string q1 = "a <- Project (Animal, Number) animals;";
string q2 = "a <- cross1 * cross2";
string q3 = "a <- cross1 - cross3";
string q4 = "a <- cross1 + cross2;";
string q5 = "a<- j1 JOIN j2";
//all test queries above this function correctly
string q6 = "";
string createTest = "CREATE TABLE Teams (id INTEGER, favnum INTEGER, state INTEGER) PRIMARY KEY (id)";
string insertTest = "INSERT INTO Students VALUES FROM (Mouse, 12345665, Mexico)";
string insertTest2 = "INSERT INTO Mammals VALUES FROM (Mouse, 12345665, Mexico)";
string DiffTest = "a <- All_Warriors - Warriors_Starters;";
engine->open("join1.txt");
engine->changeRelationName(0, "j1");
engine->show("j1");
engine->open("join2.txt");
engine->changeRelationName(1, "j2");
engine->show("j2");
vector<int> theVec;
// To test use the different hardcoded strings to parse first.
//vector<Token> tok = parser->splitInput(q1);
//vector<Token> tok = parser->splitInput(insertTest2);
vector<Token> tokenvec = parser->splitInput(q5);
//vector<Token> tokenvec0 = parser->splitInput(q2);
Executer* exec = new Executer();
exec->execute(engine, tokenvec);
/*for(int i = 0; i < tok.size(); i++){
cout << "tok value: " << tok.at(i).getValue() << "\t" << tok.at(i).getTokenType() << endl;
}
cout << endl;
for(int j =0; j < tokenvec.size(); j++){
cout << "token value: " << tokenvec.at(j).getValue() << "\t" << tokenvec.at(j).getTokenType() << endl;
}*/
//engine->show("Students");
//engine->show("Mammals");
//engine->show("Teams");
//engine->show("projection");
//engine->show("Students");
/*cout << "Running" << endl;
while (true) {
string line;
getline(cin, line);
// temp
if (line == "q" || line == "quit") return 0;
else if (line == "h" || line == "help") help();
// parsing
vector<int> conditions;
parser->splitInput (line, conditions);
// create condition tree
// executer
executer->execute (engine, parser->getTokenVector().at(0)); // NOT ALWAYS ZERO!
}*/
}
int Parser::execute()
{
// If I use my imagination hard enough
// this will magically work
// every odd number is a connector (besides the last one);
// 0 and even numbers are the commands
int status = 0;
unsigned int i = 0;
Executer E;
// if user puts "ls test ||" or "echo test &&", etc
// then prompt the user ">" and another command
if ((cmd.size() != 1) && ((cmd.back() == "||") || (cmd.back() == "&&")))
{
string cmd;
cout << ">";
getline(cin, cmd);
setCommand(cmd);
parse();
}
//for(unsigned int i = 0; i < cmd.size(); i++)
// cout << i << ": " << cmd.at(i) << endl;
//for(unsigned int i = 0; i < test.size(); i++)
// cout << test[i] << endl;
//for(unsigned int i = 0; i < cmd.size(); i++)
// cout << cmd[i] << endl;
// this loop analyzes the connectors
// and determines what gets runned
while(i < cmd.size())
{
E.setCount(i);
this->bPtr = &E;
status = bPtr->execute();
if(status == -1) // if status is -1 then "exit was inputted"
{ // so we want to exit rshell program
return status;
}
// should on on connector now
// b/c connectors are on odd numbers
i++;
if(i >= cmd.size())
{
return status;
}
if(cmd.at(i) == ";")
{
//cout << "Before i++" << endl;
i++;
//cout << "After i++" << endl;
}
// if next one is && move to the next one if
// previous worked
else if(cmd.at(i) == "&&")
{
// if previous worked
if(status == 0)
{
i++; // go to the next command
}
else
{
i+=3; // moves on to next connector
}
}
else if(cmd.at(i) == "||")
{
// if previous failed
if(status == 149)
{
i++; // go to the next command
}
else
{
i+=3;
}
}
//cout << "i after everything: " << i << endl;
if(isOdd(i) || i > cmd.size())
{
//cout << "goes here" << endl;
return status;
}
}
return status;
}
void executeInt(Executer &executer)
{
executer.setTop(std::floor(executer.topDbl()));
}
void executeRnd(Executer &executer)
{
executer.push(executer.getRandomNumber());
}
void main(void)
{
Lexer objLex;
objLex.Init();
while (true)
{
string strInput = "";
while (strInput.empty())
{
cout << "Input a filename or 'q' to quit: ";
if (!getline(cin,strInput) || strInput == "q")
{
strInput = "";
break;
}
}
// User typed "q" if it's empty (got here with "break")
if (strInput.empty()) break;
if (!objLex.Open(strInput.c_str()))
{
cout << "Error opening file: " << strInput << endl;
continue;
}
Parser objParse(&objLex);
bool created = false;
try
{
if (objParse.Validate())
{
created = true;
Executer exe;
exe.Execute(objParse.lstParseTree);
//cout << exe.symTable << endl << endl;
vector<DataValue>::iterator it;
}
else
{
cout << "Invalid source file, parse tree was not created." << endl;
}
} catch (Token objToken)
{
cout << "Lexer Error: " << objToken.dtValue << endl;
}
/*if (!created)
{
string strTemp;
do
{
cout << "Would you like to view the partial parse-tree (y/n)? ";
cin >> strTemp;
cin.ignore();
cin.clear();
} while (strTemp!="y"&&strTemp!="Y"&&strTemp!="n"&&strTemp!="N");
if (tolower(strTemp[0]) == 'y')
objParse.PrintTree(cout);
}*/
objLex.Close();
cout << "End of file." << endl;
}
}
int main()
{
Executer exe;
exe.execute();
}
void executeFix(Executer &executer)
{
executer.setTop(std::trunc(executer.topDbl()));
}