public override Result VisitMnemonic_inst([NotNull] testParser.Mnemonic_instContext context)
{
// 命令語
var instRet = Visit(context.inst());
if (!instRet.Success)
{
return(instRet);
}
//オペランド
var operands = new List <IOperand>();
foreach (var item in context.operand())
{
var ret = Visit(item);
if (!ret.Success)
{
return(ret);
}
operands.Add(ret.Tag as IOperand);
}
var inst = instRet.Tag as Instruction;
//まずは入力検証
{
//命令後に対する引数の数
if (inst.Attribute.AcceptArgNum != operands.Count)
{
return(Result.CreateError("引数の数が不正"));
}
//デバイスの種別(これは仕様がよくわからない)
//オペランドの種類
}
//命令後実行
{
if (inst.Attribute.Dir == Direction.In)
{
_plc.PushInputState(inst.Attribute.Func(_plc, operands));
}
if (inst.Attribute.Dir == Direction.Out)
{
if (_plc.CanOutput())
{
inst.Attribute.Func(_plc, operands);
}
_plc.ClearInputState();
}
}
return(Result.CreateSuccess(null));
}
/// <summary>
/// Exit a parse tree produced by the <c>mnemonic_inst</c>
/// labeled alternative in <see cref="testParser.mnemonic"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitMnemonic_inst([NotNull] testParser.Mnemonic_instContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>mnemonic_inst</c>
/// labeled alternative in <see cref="testParser.mnemonic"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitMnemonic_inst([NotNull] testParser.Mnemonic_instContext context)
{
return(VisitChildren(context));
}
