public override void Execute(VirtualMachine vm, Compiler.Nodes.FunctionCallNode node)
{
Variable leftVariable = vm.getVariable(node.Left);
Variable rightVariable = vm.getVariable(node.Right);
if(leftVariable.Type == VariableType.Number && rightVariable.Type == VariableType.Number) //values are parsable as numbers.
{
int left = int.Parse(leftVariable.Value);
int right = int.Parse(rightVariable.Value);
switch(node.Name) {
case "AreEqual":
vm.Return = new Variable(VariableType.Boolean, (left == right).ToString());
break;
case "IsSmaller":
vm.Return = new Variable(VariableType.Boolean, (left < right).ToString());
break;
case "IsLarger":
vm.Return = new Variable(VariableType.Boolean, (left > right).ToString());
break;
case "IsSmallerOrEqual":
vm.Return = new Variable(VariableType.Boolean, (left <= right).ToString());
break;
case "IsLargerOrEqual":
vm.Return = new Variable(VariableType.Boolean, (left <= right).ToString());
break;
}
}
//TODO: compare strings?
}
public override void Execute(VirtualMachine vm, FunctionCallNode node)
{
Variable variable1 = vm.getVariable(node.Left);
Variable variable2 = vm.getVariable(node.Right);
if (variable1.Type == VariableType.Number && variable2.Type == VariableType.Number)
vm.Return = new Variable(VariableType.Number,(Int32.Parse(variable1.Value) + Int32.Parse(variable2.Value)).ToString());
else
vm.Return = new Variable(variable1.Value + variable2.Value);
}
public override void Execute(VirtualMachine vm, FunctionCallNode node)
{
Variable variable1 = vm.getVariable(node.Left);
Variable variable2 = vm.getVariable(node.Right);
if (variable1.Type == VariableType.Number && variable2.Type == VariableType.Number)
vm.Return = new Variable(VariableType.Number, (Int32.Parse(variable1.Value) * Int32.Parse(variable2.Value)).ToString());
else
throw new Exception("Cannot multiply strings");
}
public override void Execute(VirtualMachine vm, IList<string> parameterNames)
{
//var variable1 = compiler.GetVariable(parameterNames[1]);
//var variable2 = compiler.GetVariable(parameterNames[2]);
// if(variable1.Type == VariableType.NUMBER && variable2.Type == VariableType.NUMBER)
// vm.ReturnValue = (Int32.Parse(variable1.Value) + Int32.Parse(variable2.Value))
// .ToString();
// else
// vm.ReturnValue = variable1.Value + variable2.Value;
}
public NodeVisitor(VirtualMachine vm)
{
this.vm = vm;
commands = new List<BaseCommand>();
commands.Add(new MinCommand());
commands.Add(new PlusCommand());
commands.Add(new DivideCommand());
commands.Add(new MultiplyCommand());
commands.Add(new CompareCommand());
commands.Add(new PrintCommand());
}
static void Main(string[] args)
{
Parser p = new Parser();
string[] codeLines = p.readFile("code.ivaron"); //Read code
LinkedList<Token> list = new LinkedList<Token>();
try {
list = Tokenizer.tokenize(codeLines); //Tokenize code
} catch(CompilerException e) {
foreach (string error in e.Errors)
{
Console.WriteLine(error);
}
}
if(list.Count > 0) {
LinkedListNode<Token> token = list.First;
while(token != null ) {
Console.Write(token.Value.value + " ");
if(token.Value.value == "{" || token.Value.value == ";") {
Console.Write("\n");
}
token = token.Next;
}
}
if(list.Count > 0) {
LinkedListNode<Token> token = list.First;
while(token != null) {
Console.Write(token.Value.type + " ");
if(token.Value.value == "{" || token.Value.value == ";") {
Console.Write("\n");
}
token = token.Next;
}
}
NodeLinkedList nll = TheCompiler.compile(list.First);
VirtualMachine vm = new VirtualMachine();
vm.Run(nll);
// Keep the console window open in debug mode.
Console.WriteLine("Press return key to exit.");
System.Console.ReadKey();
}
public abstract void Execute(VirtualMachine vm, FunctionCallNode node);
public override void Execute(VirtualMachine vm, FunctionCallNode node)
{
Console.WriteLine(vm.Return.Value);
}
public override void Execute(VirtualMachine vm, IList<string> parameters)
{
//vm.SetVariable(parameters[1], vm.ReturnValue);
}