static void Main(string[] args)
{
if (args.Count() < 1 || System.IO.File.Exists(args[0]) == false) {
Console.Write("Filename>");
args = new String[1];
args[0] = Console.ReadLine();
}
Assembler asm = new Assembler();
Console.WriteLine("Compiling...");
String code = System.IO.File.ReadAllText(args[0]);
List<Instruction> bc = asm.Compile(code, false);
Console.WriteLine("Executing.");
VirtualMachine vm = new VirtualMachine(bc);
Primitives prims = new Primitives();
vm.AddPrimitive("<IO.PrintLine>", prims.ConsoleWriteLine, new List<Value>() { Value.New(ValueTypes.ANY_TYPE) });
vm.AddPrimitive("<IO.Print>", prims.ConsoleWrite, new List<Value>() { Value.New(ValueTypes.ANY_TYPE) });
vm.AddPrimitive("<IO.ReadLine>", prims.ConsoleReadLine, new List<Value>());
vm.AddPrimitive("<IO.File.OpenForWriting>", prims.OpenFileWrite, new List<Value>() { Value.New(ValueTypes.STRING) });
vm.AddPrimitive("<IO.File.Write>", prims.WriteToFile, new List<Value>() { Value.New(ValueTypes.STRING), Value.New(ValueTypes.INT_32) });
vm.AddPrimitive("<IO.File.Close>", prims.CloseFile, new List<Value>() { Value.New(ValueTypes.INT_32) });
vm.AddPrimitive("<Random.GetInt>", prims.GetRandom, new List<Value>() { Value.New(ValueTypes.INT_32), Value.New(ValueTypes.INT_32) });
vm.Start();
// We've actually run a full cycle here, but this
// indicates
while (vm.CanBeRestarted || vm.IsAborted) {
if (vm.IsDebugging || vm.IsAborted) {
if (vm.IsAborted) {
Console.Write("Panic at PC " + vm.ProgramCounter + ": ");
vm.DumpErrors(Console.Out);
} else {
Console.WriteLine("Debug mode at PC " + vm.ProgramCounter + " (" + vm.DebugText + ")");
}
bool debugMode = true;
while (debugMode) {
Console.Write(">");
String cmd = Console.ReadLine().ToUpperInvariant();
switch (cmd) {
case "HELP":
case "?":
Console.WriteLine(@"
COMMANDS:
CLO/SURES: Dump closure stack.
C/ONT/INUE: Leave debug mode and continue execution.
G/LO/BALS: Dump global variables.
EN/V/IRONMENT: Dump the current environment.
E/RR/ORS: Dump errors, if any.
P/RIM/ITIVES: Dump primitives.
Q/UIT: Quit.
S/TACK: Dump the stack.
STAT/US: Dump status.
");
break;
case "Q":
case "QUIT":
System.Environment.Exit(111);
break;
case "STAT":
case "STATUS":
vm.DumpOperation(Console.Out);
break;
case "CLO":
case "CLOSURES":
vm.DumpClosures(Console.Out);
break;
case "ERRORS":
case "ERR":
case "E":
vm.DumpErrors(Console.Out);
break;
case "GLOBALS":
case "GLO":
case "G":
vm.DumpGlobals(Console.Out);
break;
case "V":
case "ENVIRONMENT":
case "ENV":
vm.DumpCurrentEnvironment(Console.Out);
break;
case "P":
case "PRIM":
case "PRIMITIVES":
vm.DumpPrimitives(Console.Out);
break;
case "STACK":
case "S":
vm.DumpStack(Console.Out);
break;
case "CONTINUE":
case "CONT":
case "C":
debugMode = false;
break;
default:
break;
}
}
}
vm.Run();
}
if (vm.IsAborted) {
vm.DumpOperation(Console.Out);
vm.DumpErrors(Console.Out);
vm.DumpCurrentEnvironment(Console.Out);
vm.DumpStack(Console.Out);
}
}