public void Run(List <byte> instructions, List <Object> constants, List <BuiltIn> builtIns)
{
internalState = InitializeState(instructions, constants, builtIns);
while (internalState.CurrentFrame.InstructionPointer < internalState.CurrentFrame.Closure.Instructions.Count)
{
if (internalState.Stack.Top != default(Object) && internalState.Stack.Top.Kind == ObjectKind.Error)
{
break;
}
internalState.Opcode = internalState.CurrentFrame.Closure.Instructions[internalState.CurrentFrame.InstructionPointer];
internalState.CurrentFrame.InstructionPointer++;
switch (internalState.Opcode)
{
case 1: // Opcode.Constant
ExecuteConstantOperation();
break;
case 3: // Opcode.Pop
internalState.Stack.Pop();
break;
case 2: // Opcode.Add
case 4: // Opcode.Subtract
case 5: // Opcode.Multiply
case 6: // Opcode.Divide
case 9: // Opcode.Equal
case 10: // Opcode.NotEqual
case 11: // Opcode.GreaterThan
ExecuteBinaryOperation(internalState.Opcode);
break;
case 7: // Opcode.True
case 8: // Opcode.False
ExecuteBooleanOperation(internalState.Opcode);
break;
case 12: // Opcode.Minus
ExecuteMinusOperation();
break;
case 13: // Opcode.Bang
ExecuteBangOperation();
break;
case 14: // Opcode.Jump
ExecuteJumpOperation();
break;
case 15: // Opcode.JumpNotTruthy
ExecuteJumpNotTruthyOperation();
break;
case 16: // Opcode.Null
ExecuteNullOperation();
break;
case 17: // Opcode.SetGlobal
ExecuteSetGlobalOperation();
break;
case 18: // Opcode.GetGlobal
ExecuteGetGlobalOperation();
break;
case 19: // Opcode.Array
ExecuteArrayOperation();
break;
case 20: // Opcode.Hash
ExecuteHashOperation();
break;
case 21: // Opcode.Index
ExecuteIndexOperation();
break;
case 22: // Opcode.Call
ExecuteCallOperation();
break;
case 23: // Opcode.Return
ExecuteReturnOperation();
break;
case 24: // Opcode.ReturnValue
ExecuteReturnValueOperation();
break;
case 25: // Opcode.SetLocal
ExecuteSetLocalOperation();
break;
case 26: // Opcode.GetLocal
ExecuteGetLocalOperation();
break;
case 27: // Opcode.GetBuiltIn
ExecuteGetBuiltInOperation();
break;
case 28: // Opcode.Closure
ExecuteClosureOperation();
break;
case 29: // Opcode.GetFree
ExecuteGetFreeOperation();
break;
case 30: // Opcode.GetCurrentClosure
ExecuteGetCurrentClosureOperation();
break;
}
}
}
public VirtualMachine()
{
internalState = new VirtualMachineState {
Globals = new List <Object>()
};
}
