main.cpp

#include <main.h>

//Parsed commands
cmd_list cmds;
//Variables and their characteristics
variable_map var_map;
//Labels
label_list labels;
//Function calling stuff
param_stack par_stack;
formal_params_stack formal_stack;
return_stack ret_stack;
call_addr_stack call_stack;

std::ifstream inFile;

bool parser_dbg=false;

void wrong_usage_msg(int arg_num){
	fatal("[USAGE] vvm <input file>, "+to_string(arg_num)+" args supplied\n");
}

void invalid_arg_msg(const char* arg){
	fatal("[INVALID ARGUMENT] "+std::string(arg)+"\n");
}

int main(int argc, const char* argv[]){
	//Check and parse the command line arguments
	if(argc<MIN_ARGC || argc>MAX_ARGC){
		wrong_usage_msg(argc-1);
	}
	
	//Leaving room for more future command line options
	std::string filename;
	bool inFileSupplied=false;
	for(int i=1;i<argc;i++){
		if(file_exists(argv[i])){
			filename=argv[i];
			inFileSupplied=true;
		}
		else{
			invalid_arg_msg(argv[i]);
		}
	}
	
	if(!inFileSupplied)
		fatal("[ERROR] Input file not defined: "+filename+"\n");
	
	inFile.open(filename);
	
	//Parse the input file into a list of commands
	parse();
	//Execute it!
	execute();
	
	return 0;
}