public override void PostWalk(YieldExpression node) { }
// YieldExpression public override bool Walk(YieldExpression node) { return(false); }
// YieldExpression public virtual bool Walk(YieldExpression node) { return(true); }
public virtual void PostWalk(YieldExpression node) { }
// YieldExpression public override bool Walk(YieldExpression node) { return(Location >= node.StartIndex && Location <= node.EndIndex); }