﻿<?xml version="1.0" encoding="utf-8"?><Type Name="CheckParametersNullityInVisibleMethodsRule" FullName="Gendarme.Rules.Correctness.CheckParametersNullityInVisibleMethodsRule"><TypeSignature Language="C#" Value="public class CheckParametersNullityInVisibleMethodsRule : Gendarme.Framework.Rule, Gendarme.Framework.IMethodRule" /><TypeSignature Language="ILAsm" Value=".class public auto ansi beforefieldinit CheckParametersNullityInVisibleMethodsRule extends Gendarme.Framework.Rule implements class Gendarme.Framework.IMethodRule, class Gendarme.Framework.IRule" /><AssemblyInfo><AssemblyName>Gendarme.Rules.Correctness</AssemblyName><AssemblyVersion>3.10.0.0</AssemblyVersion></AssemblyInfo><Base><BaseTypeName>Gendarme.Framework.Rule</BaseTypeName></Base><Interfaces><Interface><InterfaceName>Gendarme.Framework.IMethodRule</InterfaceName></Interface></Interfaces><Attributes><Attribute><AttributeName>Gendarme.Framework.FxCopCompatibility("Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods")</AttributeName></Attribute><Attribute><AttributeName>Gendarme.Framework.Problem("A visible method does not check its parameter(s) for null values.")</AttributeName></Attribute><Attribute><AttributeName>Gendarme.Framework.Solution("Since the caller is unknown you should always verify all of your parameters to protect yourself.")</AttributeName></Attribute></Attributes><Docs><summary>
             This rule checks if all nullable parameters of visible methods are compared 
             with '''null''' before they get used. This reduce the likelyhood of the runtime
             throwing a <c>NullReferenceException</c>.
             </summary><remarks>This rule is available since Gendarme 2.2</remarks><example>
             Bad example:
             <code>
             [DllImport ("message")]
             internal static extern byte [] Parse (string s, int length);
            
             public bool TryParse (string s, out Message m)
             {
            	// is 's' is null then 's.Length' will throw a NullReferenceException
            	// which a TryParse method should never do
            	byte [] data = Parse (s, s.Length);
            	if (data == null) {
            		m = null;
            		return false;
            	}
            	m = new Message (data);
            	return true;
             }
             </code></example><example>
             Good example:
             <code>
             [DllImport ("message")]
             internal static extern byte [] Parse (string s, int length);
            
             public bool TryParse (string s, out Message m)
             {
            	if (s == null) {
            		m = null;
            		return false;
            	}
            	byte [] data = Parse (s, s.Length);
            	if (data == null) {
            		m = null;
            		return false;
            	}
            	m = new Message (data);
            	return true;
             }
             </code></example></Docs><Members><Member MemberName=".ctor"><MemberSignature Language="C#" Value="public CheckParametersNullityInVisibleMethodsRule ();" /><MemberSignature Language="ILAsm" Value=".method public hidebysig specialname rtspecialname instance void .ctor() cil managed" /><MemberType>Constructor</MemberType><AssemblyInfo><AssemblyVersion>3.10.0.0</AssemblyVersion></AssemblyInfo><Parameters /><Docs><summary>To be added.</summary><remarks>To be added.</remarks></Docs></Member><Member MemberName="CheckMethod"><MemberSignature Language="C#" Value="public Gendarme.Framework.RuleResult CheckMethod (Mono.Cecil.MethodDefinition method);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance valuetype Gendarme.Framework.RuleResult CheckMethod(class Mono.Cecil.MethodDefinition method) cil managed" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>3.10.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>Gendarme.Framework.RuleResult</ReturnType></ReturnValue><Parameters><Parameter Name="method" Type="Mono.Cecil.MethodDefinition" /></Parameters><Docs><param name="method">To be added.</param><summary>To be added.</summary><returns>To be added.</returns><remarks>To be added.</remarks></Docs></Member></Members></Type>