public void Bin(PrimitiveOp op)
{
var right = stack.Pop();
var left = stack.Pop();
stack.Push(new BinOp(op, left, right));
}
public BinOp(PrimitiveOp op, Exp left, Exp right) : base(left.DataType)
{
this.op = op;
this.left = left;
this.right = right;
}
public void Unary(PrimitiveOp op)
{
var exp = stack.Pop();
stack.Push(new Unary(op, exp));
}