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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C#

CSHARP.FUNCS.RED.STR : Redundant Call for String Argument (C#)

要旨

A method call seems useless.

This checker finds calls that are useless and can consequently be removed from the code. This means that the code becomes simpler and more efficient, but might also be the sign of a programming bug.

プロパティ

クラス名 Redundant Call for String Argument (C#)
日本語クラス名 Redundant Call for String Argument (C#)
クラス分類 信頼性 (reliability)
ニーモニック CSHARP.FUNCS.RED.STR
カテゴリー
CWE CWE:1164 Irrelevant Code
対応言語 C# で利用可能です。
有効/無効設定 このワーニングクラスのチェックはデフォルトで有効になっています。チェックを無効にするにはプロジェクト設定ファイル （configuration file）に以下の WARNING_FILTER ルールを追加してください。 
WARNING_FILTER += discard class="Redundant Call for String Argument (C#)"

例 

using System;

namespace DocumentationExamples
{

    public class UselessCall
    {
        private readonly string name;
        private readonly string surname;
        private readonly DateTime birthDay;
        public UselessCall(string name, string surname)
        {
            this.name = name;
            this.surname = surname;
            birthDay = new DateTime();
        }
        public static void Main(string[] args)
        {
            UselessCall s = new UselessCall("John", "Lennon");
            Print(s.ToString());
        }
        private static void Print(object s)
        {
            Console.WriteLine(s.ToString());                            // "Redundant Call for String Argument (C#)" warning issued here
                                                                        // - s always holds a string at runtime
        }
        public override string ToString()
        {
            return "I'm " + name.ToString() + surname.ToString() + "." 
              + " My birthday is on " + birthDay.ToString();            // "Redundant Call for String Argument (C#)" warning issued here
                                                                        // - both name and surname are already strings
        }
    }
}

解決法

Check if the call is useless and delete it.

関連のある設定ファイルパラメータ

設定ファイルの以下のパラメータがこのワーニングクラスのチェックに影響します。

 

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