private static void unaryArith(int i, ILuaVM vm, ArithOpEnum op)
{
int a = Instruction.GetA(i) + 1;
int b = Instruction.GetB(i) + 1;
vm.PushValue(b);
vm.Arith(op);
vm.Replace(a);
}
private static void binaryArith(int i, ILuaVM vm, ArithOpEnum op)
{
int a = Instruction.GetA(i) + 1;
int b = Instruction.GetB(i);
int c = Instruction.GetC(i);
vm.GetRK(b);
vm.GetRK(c);
vm.Arith(op);
vm.Replace(a);
}
public void Arith(ArithOpEnum op)
{
Object b = stack.Pop();
Object a =
op != ArithOpEnum.LUA_OPUNM &&
op != ArithOpEnum.LUA_OPBNOT ? stack.Pop() : b;
Object result = Arithmetic.Arith(a, b, op);
if (result != null)
{
stack.Push(result);
}
}
public static Object Arith(Object a, Object b, ArithOpEnum op)
{
LongBinaryOperator integerFunc = integerOps[(int)op];
DoubleBinaryOperator floatFunc = floatOps[(int)op];
if (floatFunc == null)
{
long?x = LuaValue.ToInteger(a);
if (x != null)
{
long?y = LuaValue.ToInteger(b);
if (y != null)
{
return(integerFunc((long)x, (long)y));
}
}
}
else
{
if (integerFunc != null)
{
if (TypeExtension.TypeEqual <long>(a) &&
TypeExtension.TypeEqual <long>(b))
{
return(integerFunc((long)a, (long)b));
}
}
double?x = LuaValue.ToFloat(a);
if (x != null)
{
double?y = LuaValue.ToFloat(b);
if (y != null)
{
return(floatFunc((double)x, (double)y));
}
}
}
return(null);
}
