/// <summary>
/// 変数宣言ノードの評価
/// </summary>
/// <param name="node">変数宣言ノード</param>
/// <returns>null</returns>
public override object Visit(VarAssignNode node)
{
var val = Visit(node.Value);
VariableStore.SetVar(node.VarName, val);
return(null); //変数宣言ステートメントは不要なので捨てる
}
public IValue VisitVarAssignNode(VarAssignNode node, Context context)
{
var name = node.Name;
var value = TraverseTree(node.ValueNode, context);
context.Symbols.SetVariable(name, value);
return value;
}
public abstract T Visit(VarAssignNode node);