41 lines
798 B
Plaintext
41 lines
798 B
Plaintext
When a reference parameter (keyword ``++ref++``) is used, the passed argument type must exactly match the reference parameter type. This means that to be able to pass a derived type, it must be cast and assigned to a variable of the proper type. Use of generic methods eliminates that cumbersome down casting and should therefore be preferred.
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This rule raises an issue when a method contains a ``++ref++`` parameter of type ``++System.Object++``.
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== Noncompliant Code Example
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----
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using System;
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namespace MyLibrary
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{
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public class Foo
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{
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public void Bar(ref object o1, ref object o2) // Noncompliant
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{
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}
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}
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}
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----
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== Compliant Solution
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----
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using System;
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namespace MyLibrary
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{
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public class Foo
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{
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public void Bar<T>(ref T ref1, ref T ref2)
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{
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}
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}
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}
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----
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