public override void Visit(SubtractExpressionNode node)
{
node.expression1.Accept(this);
Gen("push", "eax");
node.expression2.Accept(this);
Gen("pop", "edx");
Gen("sub", "edx", "eax");
Gen("mov", "eax", "edx");
}
public override void Visit(SubtractExpressionNode node)
{
node.expression1.Accept(this);
node.expression2.Accept(this);
if (!AreTypeCompatible(node.expression1.ExpressionType.GetType(), typeof(IntType)))
throw new Exception("Expression 1 for - operation is not of type Int!");
if (!AreTypeCompatible(node.expression2.ExpressionType.GetType(), typeof(IntType)))
throw new Exception("Expression 2 for - operation is not of type Int!");
node.ExpressionType = IntType.Instance;
}
public virtual void Visit(SubtractExpressionNode node)
{
node.expression1.Accept(this);
node.expression2.Accept(this);
}
public override void Visit(SubtractExpressionNode node)
{
Console.WriteLine(this.indentation + "-");
indentation = indentation + " ";
node.expression1.Accept(this);
node.expression2.Accept(this);
indentation = indentation.Substring(0, indentation.Length - 3);
}