AvoidUnneededFieldInitializationRule Class

This rule looks for constructors that assign fields to their default value (e.g. 0 for an integer, null for an object or a string). Since the CLR zero initializes all values there is no need, under most circumstances, to assign default values. Doing so only adds size to source code and in IL.

Syntax

[Gendarme.Framework.EngineDependency(typeof(Gendarme.Framework.Engines.OpCodeEngine, Gendarme.Framework, Version=2.8.0.0, Culture=neutral, PublicKeyToken=null))]
[Gendarme.Framework.FxCopCompatibility("Microsoft.Performance", "CA1805:DoNotInitializeUnnecessarily")]
[Gendarme.Framework.Problem("This constructor needlessly initializes zero initializes some fields.")]
[Gendarme.Framework.Solution("Remove the unneeded initialization from the constructors.")]
public class AvoidUnneededFieldInitializationRule : Gendarme.Framework.Rule, Gendarme.Framework.IMethodRule

Remarks

This rule is available since Gendarme 2.2

Example

Bad example:

Example

            public class Bad {
            	int i;
            	string s;
            	public Bad ()
            	{
            		i = 0;
            		s = null;
            	}
            }

Example

Good example:

Example

            public class Good {
            	int i;
            	string s;
            	public Good ()
            	{
            		// don't assign 'i' since it's already 0
            		// but we might prefer to assign a string to String.Empty
            		s = String.Empty;
            	}
            }

Requirements

Namespace: Gendarme.Rules.Performance
Assembly: Gendarme.Rules.Performance (in Gendarme.Rules.Performance.dll)
Assembly Versions: 2.8.0.0