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| CodeSonar® 9.0p0 Hot Tips | CONFIDENTIAL | CodeSecure Inc |
One of the following.
| クラス名 | Unnecessary Field (C#) | ||||||
|---|---|---|---|---|---|---|---|
| 日本語クラス名 | Unnecessary Field (C#) | ||||||
| クラス分類 | 信頼性 (reliability) | ||||||
| ニーモニック | CSHARP.STRUCT.UNFLD | ||||||
| カテゴリー |
|
||||||
| 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="Unnecessary Field (C#)" |
English (en)
namespace DocumentationExamples
{
public class ImproperField
{
public static void Main(string[] args)
{ }
private int[] array = new int[100];
private int counter; // "Unnecessary Field (C#)" warning issued here
// - 'counter' should be replaced by local variables.
public void Clear()
{
for (counter = 0; counter < array.Length; counter++)
array[counter] = 1;
counter = 0; // "Unnecessary Field (C#)" warning issued here
// - value never used
}
private int field1; // "Unnecessary Field (C#)" warning issued here
// - field1 only used in constructors
public ImproperField(){
field1 = 0;
field1 = field1+1;
}
}
}
These issues can be resolved by removing the counter field (using a local variable instead), and by marking field1 as readonly.
namespace DocumentationExamples
{
public class ImproperField
{
public static void Main(string[] args)
{ }
private int[] array = new int[100];
public void Clear()
{
for (int counter = 0; counter < array.Length; counter++)
array[counter] = 1;
}
private readonly int field1;
public ImproperField(){
field1 = 0;
field1 = field1+1;
}
}
}
Use variables local to the methods and the constructors instead of fields.
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。