Compiler

TODO (new features):

• add typedef + dynamic memory allocation
• seperate value tree into literal and variable tree
• get variable type in getelementree and value tree
• better error handling (jump to next statement)
• leave scope when encountering erros
• add references to functions (in c++ not in z code)
• implement double, byte, short type in lexer + code generator (valueTree + globaltree)
• distinguish between global and local var in code gen + global vars in vm
• float variables dont work (should be removed, needs testing)
• increment support
• type conversion
• array out of bounds checking

TODO (bug fixes):

• check parse function
• check if void function works
• printing arrays

TODO (code cleanup):

• when giving a type size, always give sizeof()
• add documentation for callFunction
• use memcpy directly without getBytes
• checkforerrors: inclusive typechecking or < operator
• (remove pointer in scope->variables->pair)
• check for variable redefinitions
• remove unused classes in lexer
• remove redundant data in allVariables (maybe use pointer to declaration instead of tuples)
• restructure allVariables (maybe use already existing namespace)
• improve ScopeHelper::addVariable integration with dynamic types (arrays and typedefs)
• improve array typecheck performance by subtracting its type

Known Errors:

• std::list<ExpressionTree*>() threw a fast fail exception, fixed by using dynamic allocation instead???, error turned up without changing any code near it, fixed by using release mode

std::cout << "1";
std::list<ExpressionTree*> * dimensionSizes = new std::list<ExpressionTree*>();
std::cout << "2";

• when Stack is composed of an 8 byte array pointer + 4 byte int --> popInt() causes an exception when accessing array values; to fix place integer after array

// Doesnt work
VmArray<int> * arrayPointer = (VmArray<int>*)this->stack->loadPointer(position);
arrayPointer->setAllValues(indices, this->stack->popInt());
// Works
this->stack->pushInt(21);
VmArray<int> * arrayPointer = (VmArray<int>*)this->stack->loadPointer(position);
arrayPointer->setAllValues(indices, this->stack->popInt());
// Fix, is called each function call + at main function startup
this->stack->pushInt(-1111111); // fixes reference error (if array is on top of stack)

• an array function named test will crash the following code (a==null):

void DeleteStmt::writeCode(CodeGenerator * c){
	auto a = c->scopeHelper->getVarInformation(this->reference->getValue());
	int position = std::get<1>(*(c->scopeHelper->getVarInformation(this->reference->getValue())));
	c->writeByte(OpCode::DEL_ARRAY);
	c->writeInteger(position);
}