public override void Execute(Context context)
{
foreach (MelodyExpression melodyExpression in m_Children)
{
melodyExpression.Execute(context);
}
SelfExecute(context);
}
public void Test()
{
string str = "10 + 2 - 5 + 4 + 9";
Context context = new Context(str);
AbstractExpression expression = new NonterminalExpression();
int result = expression.Interpret(context);
Assert.AreEqual(30, result);
}
public static void Test()
{
var expressionList = new List<AbstractExpression>
{
new TerminalExpressionA(),
new TerminalExpressionB()
};
var context = new Context();
expressionList.ForEach(e => e.Interpret(context));
}
public override int Interpret(Context context)
{
int result = 0;
string token;
while ((token = context.GetToken()) != null) {
int val;
if (int.TryParse(token, out val)) {
// 数字
result += val;
} else {
// その他
}
}
return result;
}
public abstract int Interpret(Context context);
protected abstract void SelfExecute(Context context);
protected override void SelfExecute(Context context)
{
}
